e576bb | 2002-10-11 | Martin Nilsson | | /* -*- c -*-
|| This file is part of Pike. For copyright information see COPYRIGHT.
|| Pike is distributed under GPL, LGPL and MPL. See the file COPYING
|| for more information.
|
d19162 | 2006-03-22 | Henrik Grubbström (Grubba) | | || $Id: builtin.cmod,v 1.182 2006/03/22 19:08:39 grubba Exp $
|
e576bb | 2002-10-11 | Martin Nilsson | | */
|
c3da7f | 2000-07-04 | Martin Stjernholm | |
|
3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | | #include "global.h"
#include "interpret.h"
#include "svalue.h"
#include "pike_macros.h"
#include "object.h"
#include "program.h"
#include "array.h"
|
bb8a78 | 2000-12-01 | Fredrik Hübinette (Hubbe) | | #include "pike_error.h"
|
3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | | #include "constants.h"
#include "mapping.h"
#include "stralloc.h"
#include "multiset.h"
#include "pike_types.h"
#include "pike_memory.h"
#include "threads.h"
#include <math.h>
#include <ctype.h>
#include "module_support.h"
#include "cyclic.h"
#include "bignum.h"
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | | #include "main.h"
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b8c5b2 | 2000-05-25 | Fredrik Hübinette (Hubbe) | | #include "operators.h"
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9da7f4 | 2001-06-05 | Martin Stjernholm | | #include "builtin_functions.h"
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fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | #include "fsort.h"
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812f9a | 2002-04-06 | Henrik Grubbström (Grubba) | | #include "port.h"
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51adb8 | 2003-01-12 | Martin Stjernholm | | #include "gc.h"
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db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | #include "block_alloc.h"
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73b08f | 2003-01-31 | Martin Stjernholm | | #include <assert.h>
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3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | |
|
7faf1e | 2005-01-08 | Henrik Grubbström (Grubba) | | /*! @decl array(array(int|string|type)) describe_program(program p)
|
2d8e64 | 2002-11-25 | Martin Nilsson | | *! @belongs Debug
|
7d1b3b | 2001-12-21 | Henrik Grubbström (Grubba) | | *!
*! Debug function for showing the symbol table of a program.
|
7faf1e | 2005-01-08 | Henrik Grubbström (Grubba) | | *!
*! @returns
*! Returns an array of arrays with the following information
*! for each symbol in @[p]:
*! @array
*! @elem int modifiers
*! Bitfield with the modifiers for the symbol.
*! @elem string symbol_name
*! Name of the symbol.
*! @elem type value_type
*! Value type for the symbol.
*! @elem int symbol_type
*! Type of symbol.
*! @elem int symbol_offset
*! Offset into the code or data area for the symbol.
*! @elem int inherit_offset
*! Offset in the inherit table to the inherit containing
*! the symbol.
*! @elem int inherit_level
*! Depth in the inherit tree for the inherit containing
*! the symbol.
*! @endarray
*!
*! @note
*! The API for this function is not fixed, and has changed
*! since Pike 7.6. In particular it would make sense to return
*! an array of objects instead, and more information about the
*! symbols might be added.
|
7d1b3b | 2001-12-21 | Henrik Grubbström (Grubba) | | */
PIKEFUN array(array(int|string)) _describe_program(mixed x)
efun;
{
struct program *p;
struct array *res;
int i;
|
d4ecd7 | 2003-01-05 | Martin Nilsson | | if (!(p = program_from_svalue(Pike_sp - args)))
SIMPLE_BAD_ARG_ERROR("_describe_program", 1, "program");
|
7d1b3b | 2001-12-21 | Henrik Grubbström (Grubba) | |
for (i=0; i < (int)p->num_identifier_references;i++) {
struct reference *ref = p->identifier_references + i;
struct identifier *id = ID_FROM_PTR(p, ref);
|
cab69e | 2002-04-24 | Henrik Grubbström (Grubba) | | struct inherit *inh = INHERIT_FROM_PTR(p, ref);
|
7d1b3b | 2001-12-21 | Henrik Grubbström (Grubba) | | push_int(ref->id_flags);
ref_push_string(id->name);
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7faf1e | 2005-01-08 | Henrik Grubbström (Grubba) | | ref_push_type_value(id->type);
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cab69e | 2002-04-24 | Henrik Grubbström (Grubba) | | push_int(id->identifier_flags);
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c278f7 | 2003-08-03 | Martin Stjernholm | | if (IDENTIFIER_IS_C_FUNCTION(id->identifier_flags)) {
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cab69e | 2002-04-24 | Henrik Grubbström (Grubba) | | push_int(-2);
} else {
push_int(id->func.offset);
}
push_int(ref->inherit_offset);
push_int(inh->inherit_level);
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7faf1e | 2005-01-08 | Henrik Grubbström (Grubba) | | f_aggregate(7);
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7d1b3b | 2001-12-21 | Henrik Grubbström (Grubba) | | }
f_aggregate(p->num_identifier_references);
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cdf18a | 2003-03-14 | Henrik Grubbström (Grubba) | | dmalloc_touch_svalue(Pike_sp-1);
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cbaa3a | 2002-05-24 | Henrik Grubbström (Grubba) | | res = Pike_sp[-1].u.array;
Pike_sp--;
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7d1b3b | 2001-12-21 | Henrik Grubbström (Grubba) | | pop_n_elems(args);
push_array(res);
}
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | /*! @decl string basetype(mixed x)
*!
*! Same as sprintf("%t",x);
*!
*! @seealso
*! @[sprintf()]
*/
PIKEFUN string basetype(mixed x)
efun;
optflags OPT_TRY_OPTIMIZE;
{
int t=x->type;
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | struct program *p;
if(x->type == T_OBJECT && (p = x->u.object->prog))
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d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | {
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | ptrdiff_t fun = FIND_LFUN(p->inherits[x->subtype].prog, LFUN__SPRINTF);
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d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | if(fun != -1)
{
push_int('t');
f_aggregate_mapping(0);
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | apply_low(x->u.object,
fun + p->inherits[x->subtype].identifier_level, 2);
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | if(Pike_sp[-1].type == T_STRING)
{
stack_swap();
pop_stack();
return;
|
9f516a | 2001-12-16 | Martin Stjernholm | | } else if (UNSAFE_IS_ZERO(Pike_sp-1)) {
|
63a730 | 2001-07-02 | Henrik Grubbström (Grubba) | | pop_n_elems(2);
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9db2bf | 2001-07-02 | Henrik Grubbström (Grubba) | | push_constant_text("object");
return;
} else {
Pike_error("Non-string returned from _sprintf()\n");
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | }
}
}
pop_stack();
switch(t)
{
case T_ARRAY: push_constant_text("array"); break;
case T_FLOAT: push_constant_text("float"); break;
case T_FUNCTION: push_constant_text("function"); break;
case T_INT: push_constant_text("int"); break;
case T_MAPPING: push_constant_text("mapping"); break;
case T_MULTISET: push_constant_text("multiset"); break;
case T_OBJECT: push_constant_text("object"); break;
case T_PROGRAM: push_constant_text("program"); break;
case T_STRING: push_constant_text("string"); break;
case T_TYPE: push_constant_text("type"); break;
case T_ZERO: push_constant_text("zero"); break;
case T_VOID: push_constant_text("void"); break;
|
a90303 | 2003-02-16 | Martin Stjernholm | | /* The following are internal and shouldn't be applicable in normal use. */
case T_SVALUE_PTR: push_constant_text("svalue_ptr"); break;
case T_OBJ_INDEX: push_constant_text("obj_index"); break;
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | case T_MAPPING_DATA: push_constant_text("mapping_data"); break;
|
a90303 | 2003-02-16 | Martin Stjernholm | | case T_PIKE_FRAME: push_constant_text("pike_frame"); break;
case T_MULTISET_DATA: push_constant_text("multiset_data"); break;
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | default: push_constant_text("unknown"); break;
}
}
/*! @decl string int2char(int x)
|
ba2480 | 2002-04-07 | Martin Nilsson | | *! @appears String.int2char
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | *!
*! Same as sprintf("%c",x);
*!
*! @seealso
*! @[sprintf()]
*/
PIKEFUN string int2char(int|object x)
efun;
optflags OPT_TRY_OPTIMIZE;
{
int c;
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | struct program *p;
if(x->type == T_OBJECT && (p = x->u.object->prog))
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d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | {
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | ptrdiff_t fun = FIND_LFUN(p->inherits[x->subtype].prog, LFUN__SPRINTF);
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | if(fun != -1)
{
push_int('c');
f_aggregate_mapping(0);
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | apply_low(x->u.object,
fun + p->inherits[x->subtype].identifier_level, 2);
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | if(Pike_sp[-1].type == T_STRING)
{
stack_swap();
pop_stack();
return;
}
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8f5b5b | 2001-07-02 | Henrik Grubbström (Grubba) | | Pike_error("Non-string returned from _sprintf()\n");
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | | }
}
if(x->type != T_INT)
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d4ecd7 | 2003-01-05 | Martin Nilsson | | SIMPLE_BAD_ARG_ERROR("int2char", 1, "int");
|
d9a93b | 2001-07-01 | Fredrik Hübinette (Hubbe) | |
c=x->u.integer;
if(c>=0 && c<256)
{
struct pike_string *s;
s=begin_shared_string(1);
s->str[0]=c;
RETURN end_shared_string(s);
}else{
struct string_builder tmp;
init_string_builder(&tmp,0);
string_builder_putchar(&tmp, c);
RETURN finish_string_builder(&tmp);
}
}
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7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | /*! @decl string int2hex(int x)
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ba2480 | 2002-04-07 | Martin Nilsson | | *! @appears String.int2hex
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | *!
|
e97b36 | 2004-04-25 | Martin Nilsson | | *! Same as @expr{sprintf("%x",x);@}, i.e. returns the integer @[x] in
*! hexadecimal base using lower cased symbols.
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | *!
*! @seealso
*! @[sprintf()]
*/
PIKEFUN string int2hex(int|object x)
efun;
optflags OPT_TRY_OPTIMIZE;
{
INT_TYPE c;
|
a97387 | 2003-01-26 | Mirar (Pontus Hagland) | | unsigned INT_TYPE n;
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | int len;
struct pike_string *s;
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2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | struct program *p;
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | |
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | if(x->type == T_OBJECT && (p = x->u.object->prog))
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | {
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | ptrdiff_t fun = FIND_LFUN(p->inherits[x->subtype].prog, LFUN__SPRINTF);
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | if(fun != -1)
{
push_int('x');
f_aggregate_mapping(0);
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | apply_low(x->u.object,
fun + p->inherits[x->subtype].identifier_level, 2);
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | if(Pike_sp[-1].type == T_STRING)
{
stack_swap();
pop_stack();
return;
}
Pike_error("Non-string returned from _sprintf()\n");
}
}
if(x->type != T_INT)
|
d4ecd7 | 2003-01-05 | Martin Nilsson | | SIMPLE_BAD_ARG_ERROR("int2hex", 1, "int");
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | |
c=x->u.integer;
len=1;
if(c<0) {
len++;
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9c3a7c | 2003-01-26 | Mirar (Pontus Hagland) | | n=(-c)&((unsigned INT_TYPE)(-1));
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | }else{
n=c;
}
|
301e98 | 2002-01-18 | Martin Nilsson | | while(n>65535) { n>>=16; len+=4; }
while(n>15) { n>>=4; len++; }
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | |
s=begin_shared_string(len);
if(!c)
{
s->str[0]='0';
}else{
if(c<0)
{
s->str[0]='-';
|
9c3a7c | 2003-01-26 | Mirar (Pontus Hagland) | | n=(-c)&((unsigned INT_TYPE)(-1));
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | }else{
n=c;
}
|
301e98 | 2002-01-18 | Martin Nilsson | | while(len && n)
|
7b4529 | 2001-08-15 | Fredrik Hübinette (Hubbe) | | {
s->str[--len]="0123456789abcdef"[n&0xf];
n>>=4;
}
}
RETURN end_shared_string(s);
}
|
8d251e | 2003-09-05 | Martin Nilsson | |
|
54a130 | 2004-06-02 | Martin Nilsson | | static INLINE int hexchar( int v )
|
8d251e | 2003-09-05 | Martin Nilsson | | {
return v<10 ? v+'0' : (v-10)+'a';
}
|
b2d3ca | 2003-08-26 | Martin Nilsson | | /*! @decl string string2hex(string data)
*! @appears String.string2hex
*!
*! Convert a string of binary data to a hexadecimal string.
*!
*! @seealso
*! @[hex2string()]
*/
PIKEFUN string string2hex(string s)
errname String.string2hex;
optflags OPT_TRY_OPTIMIZE;
{
struct pike_string *hex;
|
8d251e | 2003-09-05 | Martin Nilsson | | unsigned char *st = s->str;
int i;
|
b2d3ca | 2003-08-26 | Martin Nilsson | |
if (s->size_shift)
Pike_error("Bad argument 1 to string2hex(), expected 8-bit string.\n");
hex = begin_shared_string(2 * s->len);
|
8d251e | 2003-09-05 | Martin Nilsson | |
for (i=0; i<s->len; i++) {
hex->str[i<<1] = hexchar(st[i]>>4);
hex->str[i<<1|1] = hexchar(st[i]&15);
}
|
b2d3ca | 2003-08-26 | Martin Nilsson | |
RETURN end_shared_string(hex);
}
/*! @decl string hex2string(string hex)
*! @appears String.hex2string
*!
*! Convert a string of hexadecimal digits to binary data.
*!
*! @seealso
*! @[string2hex()]
*/
PIKEFUN string hex2string(string hex)
errname String.hex2string;
optflags OPT_TRY_OPTIMIZE;
{
struct pike_string *s;
|
8d251e | 2003-09-05 | Martin Nilsson | | int i, o=0;
unsigned char *q = hex->str;
int l = hex->len>>1;
if(hex->size_shift) Pike_error("Only hex digits allowed.\n");
if(hex->len&1) Pike_error("Can't have odd number of digits.\n");
|
b2d3ca | 2003-08-26 | Martin Nilsson | |
|
8d251e | 2003-09-05 | Martin Nilsson | | s = begin_shared_string(l);
for (i=0; i<l; i++)
|
b2d3ca | 2003-08-26 | Martin Nilsson | | {
|
8d251e | 2003-09-05 | Martin Nilsson | | s->str[i] = (q[o]<='9' ? q[o]-'0' :((q[o]+9)&15))<<4; o++;
s->str[i] |= (q[o]<='9' ? q[o]-'0': ((q[o]+9)&15)); o++;
|
b2d3ca | 2003-08-26 | Martin Nilsson | | }
RETURN end_shared_string(s);
}
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | /*! @decl array column(array data, mixed index)
*!
*! Extract a column from a two-dimensional array.
*!
*! This function is exactly equivalent to:
|
f79bd8 | 2003-04-01 | Martin Nilsson | | *! @code
*! map(@[data], lambda(mixed x,mixed y) { return x[y]; }, @[index])
*! @endcode
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
*! Except of course it is a lot shorter and faster.
*! That is, it indices every index in the array data on the value of
*! the argument index and returns an array with the results.
*!
*! @seealso
*! @[rows()]
*/
|
b0f835 | 2001-01-07 | Henrik Grubbström (Grubba) | | PIKEFUN array column(array data, mixed index)
|
3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | | efun;
optflags OPT_TRY_OPTIMIZE;
{
|
bcd801 | 2003-04-28 | Martin Stjernholm | | RETURN array_column (data, index, 1);
|
3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | | }
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | /*! @decl multiset mkmultiset(array a)
*!
*! This function creates a multiset from an array.
*!
*! @seealso
*! @[aggregate_multiset()]
*!
*/
|
3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | | PIKEFUN multiset(1) mkmultiset(array(1=mixed) a)
efun;
|
8f998d | 2000-08-31 | Henrik Grubbström (Grubba) | | optflags OPT_TRY_OPTIMIZE|OPT_EXTERNAL_DEPEND;
|
3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | | {
RETURN mkmultiset(a);
}
|
50d97a | 2003-02-01 | Martin Stjernholm | | /*! @decl int trace(int level, void|string facility, void|int all_threads)
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! This function changes the trace level for the subsystem identified
*! by @[facility] to @[level]. If @[facility] is zero or left out, it
*! changes the global trace level which affects all subsystems.
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! Enabling tracing causes messages to be printed to stderr. A higher
*! trace level includes the output from all lower levels. The lowest
*! level is zero which disables all trace messages.
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
*! See the @tt{-t@} command-line option for more information.
|
619809 | 2003-01-08 | Martin Stjernholm | | *!
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! @param level
*! If @[facility] is specified then there is typically only one
*! trace level for it, i.e. it's an on-or-off toggle. The global
*! trace levels, when @[facility] isn't specified, are:
*!
*! @int
|
2fe054 | 2003-02-01 | Martin Stjernholm | | *! @value 1
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! Trace calls to Pike functions and garbage collector runs.
|
2fe054 | 2003-02-01 | Martin Stjernholm | | *! @value 2
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! Trace calls to builtin functions.
|
2fe054 | 2003-02-01 | Martin Stjernholm | | *! @value 3
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! Trace every interpreted opcode.
|
2fe054 | 2003-02-01 | Martin Stjernholm | | *! @value 4
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! Also trace the opcode arguments.
*! @endint
*!
*! @param facility
*! Valid facilities are:
*!
*! @string
|
2fe054 | 2003-02-01 | Martin Stjernholm | | *! @value "gc"
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! Trace the start and end of each run of the garbage collector.
*! The setting is never thread local.
*! @endstring
|
619809 | 2003-01-08 | Martin Stjernholm | | *!
*! @param all_threads
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! Trace levels are normally thread local, so changes affect only
*! the current thread. To change the level in all threads, pass a
*! nonzero value in this argument.
|
619809 | 2003-01-08 | Martin Stjernholm | | *!
*! @returns
|
50d97a | 2003-02-01 | Martin Stjernholm | | *! The old trace level in the current thread is returned.
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | */
|
50d97a | 2003-02-01 | Martin Stjernholm | | PIKEFUN int trace(int level, void|string facility, void|int all_threads)
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | | efun;
optflags OPT_SIDE_EFFECT;
{
|
50d97a | 2003-02-01 | Martin Stjernholm | | INT32 old_level;
if (facility) {
struct pike_string *gc_str;
|
de56ec | 2003-02-08 | Martin Stjernholm | | MAKE_CONST_STRING(gc_str, "gc");
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | if (facility == gc_str) {
|
50d97a | 2003-02-01 | Martin Stjernholm | | old_level = gc_trace;
gc_trace = level;
}
else {
bad_arg_error("trace", Pike_sp-args, args, 2,
"trace facility identifier", Pike_sp-args+1,
"Bad argument 2 to trace(). Unknown trace facility.");
}
|
619809 | 2003-01-08 | Martin Stjernholm | | }
|
50d97a | 2003-02-01 | Martin Stjernholm | | else {
old_level = Pike_interpreter.trace_level;
#ifdef PIKE_THREADS
if (!all_threads || UNSAFE_IS_ZERO (all_threads))
Pike_interpreter.trace_level = level;
else {
struct thread_state *s;
FOR_EACH_THREAD(s, s->state.trace_level = level);
}
|
619809 | 2003-01-08 | Martin Stjernholm | | #else
|
50d97a | 2003-02-01 | Martin Stjernholm | | Pike_interpreter.trace_level = level;
|
619809 | 2003-01-08 | Martin Stjernholm | | #endif
|
50d97a | 2003-02-01 | Martin Stjernholm | | }
RETURN old_level;
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | | }
|
51adb8 | 2003-01-12 | Martin Stjernholm | | /*! @decl mapping(string:float) gc_parameters (void|mapping(string:mixed) params)
*! @belongs Pike
*!
*! Set and get various parameters that control the operation of the
*! garbage collector. The passed mapping contains the parameters to
*! set. If a parameter is missing from the mapping, the current value
*! will be filled in instead. The same mapping is returned. Thus an
*! empty mapping, or no argument at all, causes a mapping with all
*! current settings to be returned.
*!
*! The following parameters are recognized:
*!
*! @mapping
*! @member int "enabled"
|
0d9f93 | 2003-01-14 | Martin Stjernholm | | *! If this is 1 then the gc is enabled as usual. If it's 0 then all
*! automatically scheduled gc runs are disabled and the parameters
*! below have no effect, but explicit runs through the @[gc]
*! function still works as usual. If it's -1 then the gc is
*! completely disabled so that even explicit @[gc] calls won't do
*! anything.
|
51adb8 | 2003-01-12 | Martin Stjernholm | | *! @member float "garbage_ratio_low"
*! As long as the gc time is less than gc_time_ratio, aim to run
*! the gc approximately every time the ratio between the garbage
*! and the total amount of allocated things is this.
*! @member float "time_ratio"
*! When more than this fraction of the cpu time is spent in the gc,
*! aim for gc_garbage_ratio_high instead of gc_garbage_ratio_low.
*! @member float "garbage_ratio_high"
*! Upper limit for the garbage ratio - run the gc as often as it
*! takes to keep it below this.
*! @member float "average_slowness"
*! When predicting the next gc interval, use a decaying average
*! with this slowness factor. It should be a value between 0.0 and
*! 1.0 that specifies the weight to give to the old average value.
*! The remaining weight up to 1.0 is given to the last reading.
*! @endmapping
*!
*! @seealso
*! @[gc], @[Debug.gc_status]
*/
PIKEFUN mapping(string:mixed) gc_parameters (void|mapping(string:mixed) params)
errname Pike.gc_parameters;
optflags OPT_SIDE_EFFECT;
{
struct pike_string *str;
struct svalue *set;
struct svalue get;
if (!params) {
push_mapping (allocate_mapping (5));
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | params = Pike_sp[-1].u.mapping;
|
51adb8 | 2003-01-12 | Martin Stjernholm | | }
#define HANDLE_PARAM(NAME, CHECK_AND_SET, GET) do { \
|
de56ec | 2003-02-08 | Martin Stjernholm | | MAKE_CONST_STRING (str, NAME); \
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | if ((set = low_mapping_string_lookup (params, str))) { \
|
51adb8 | 2003-01-12 | Martin Stjernholm | | CHECK_AND_SET; \
} \
else { \
GET; \
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | mapping_string_insert (params, str, &get); \
|
51adb8 | 2003-01-12 | Martin Stjernholm | | } \
} while (0)
#define HANDLE_FLOAT_FACTOR(NAME, VAR) \
HANDLE_PARAM (NAME, { \
if (set->type != T_FLOAT || \
set->u.float_number < 0.0 || set->u.float_number > 1.0) \
SIMPLE_BAD_ARG_ERROR ("Pike.gc_parameters", 1, \
|
0d9f93 | 2003-01-14 | Martin Stjernholm | | "float between 0.0 and 1.0 for " NAME); \
|
51adb8 | 2003-01-12 | Martin Stjernholm | | VAR = set->u.float_number; \
}, { \
get.type = T_FLOAT; \
get.u.float_number = VAR; \
});
HANDLE_PARAM ("enabled", {
|
0d9f93 | 2003-01-14 | Martin Stjernholm | | if (set->type != T_INT || set->u.integer < -1 || set->u.integer > 1)
SIMPLE_BAD_ARG_ERROR ("Pike.gc_parameters", 1,
"integer in the range -1..1 for 'enabled'");
if (gc_enabled != set->u.integer) {
|
bbd816 | 2003-01-15 | Martin Stjernholm | | if (gc_enabled > 0)
|
0d9f93 | 2003-01-14 | Martin Stjernholm | | gc_enabled = set->u.integer;
|
51adb8 | 2003-01-12 | Martin Stjernholm | | else {
gc_enabled = 1;
|
bbd816 | 2003-01-15 | Martin Stjernholm | | if (alloc_threshold == GC_MAX_ALLOC_THRESHOLD)
alloc_threshold = GC_MIN_ALLOC_THRESHOLD;
|
51adb8 | 2003-01-12 | Martin Stjernholm | | }
}
}, {
get.type = T_INT;
get.u.integer = gc_enabled;
});
HANDLE_FLOAT_FACTOR ("garbage_ratio_low", gc_garbage_ratio_low);
HANDLE_FLOAT_FACTOR ("time_ratio", gc_time_ratio);
HANDLE_FLOAT_FACTOR ("garbage_ratio_high", gc_garbage_ratio_high);
HANDLE_FLOAT_FACTOR ("average_slowness", gc_average_slowness);
#undef HANDLE_PARAM
#undef HANDLE_FLOAT_FACTOR
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | REF_RETURN params;
|
51adb8 | 2003-01-12 | Martin Stjernholm | | }
|
d6fd96 | 2001-02-10 | Henrik Grubbström (Grubba) | | /*! @decl string ctime(int timestamp)
*!
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *! Convert the output from a previous call to @[time()] into a readable
*! string containing the current year, month, day and time.
*!
|
f917a3 | 2002-10-03 | Martin Stjernholm | | *! Like @[localtime], this function might throw an error if the
*! ctime(2) call failed on the system. It's platform dependent what
*! time ranges that function can handle, e.g. Windows doesn't handle
*! a negative @[timestamp].
|
21f3f6 | 2002-10-03 | Martin Stjernholm | | *!
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *! @seealso
*! @[time()], @[localtime()], @[mktime()], @[gmtime()]
*/
|
b0f835 | 2001-01-07 | Henrik Grubbström (Grubba) | | PIKEFUN string ctime(int timestamp)
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | | efun;
optflags OPT_TRY_OPTIMIZE;
{
|
b0f835 | 2001-01-07 | Henrik Grubbström (Grubba) | | time_t i=(time_t)timestamp;
|
21f3f6 | 2002-10-03 | Martin Stjernholm | | char *s = ctime (&i);
|
f917a3 | 2002-10-03 | Martin Stjernholm | | if (!s) Pike_error ("ctime() on this system cannot handle "
"the timestamp %ld.\n", (long) i);
|
21f3f6 | 2002-10-03 | Martin Stjernholm | | RETURN make_shared_string(s);
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | | }
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | /*! @decl mapping mkmapping(array ind, array val)
*!
*! Make a mapping from two arrays.
*!
*! Makes a mapping @[ind[x]]:@[val[x]], @tt{0 <= x < sizeof(ind)@}.
*!
*! @[ind] and @[val] must have the same size.
*!
*! This is the inverse operation of @[indices()] and @[values()].
*!
*! @seealso
*! @[indices()], @[values()]
*/
|
b0f835 | 2001-01-07 | Henrik Grubbström (Grubba) | | PIKEFUN mapping(1:2) mkmapping(array(1=mixed) ind, array(2=mixed) val)
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | | efun;
|
8f998d | 2000-08-31 | Henrik Grubbström (Grubba) | | optflags OPT_TRY_OPTIMIZE|OPT_EXTERNAL_DEPEND;
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | | {
|
b0f835 | 2001-01-07 | Henrik Grubbström (Grubba) | | if(ind->size != val->size)
|
cbaa3a | 2002-05-24 | Henrik Grubbström (Grubba) | | bad_arg_error("mkmapping", Pike_sp-args, args, 2, "array", Pike_sp+1-args,
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | | "mkmapping called on arrays of different sizes (%d != %d)\n",
|
b0f835 | 2001-01-07 | Henrik Grubbström (Grubba) | | ind->size, val->size);
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | |
|
b0f835 | 2001-01-07 | Henrik Grubbström (Grubba) | | RETURN mkmapping(ind, val);
|
098c80 | 2000-05-24 | Fredrik Hübinette (Hubbe) | | }
|
3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | |
|
31acb7 | 2001-07-26 | Martin Nilsson | | /*! @decl int count(string haystack, string needle)
*! @belongs String
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
|
c5e2a4 | 2004-04-30 | Martin Nilsson | | *! Count the number of non-overlapping times the string @[needle]
*! occurs in the string @[haystack]. The special cases for the needle
*! @expr{""@} is that it occurs one time in the empty string, zero
*! times in a one character string and between every character
*! (length-1) in any other string.
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
*! @seealso
*! @[search()], @[`/()]
*/
|
661305 | 2000-08-10 | Henrik Grubbström (Grubba) | | PIKEFUN int string_count(string haystack, string needle)
|
991fdf | 2000-05-25 | Fredrik Hübinette (Hubbe) | | errname String.count;
optflags OPT_TRY_OPTIMIZE;
{
|
89fc4c | 2000-08-10 | Henrik Grubbström (Grubba) | | ptrdiff_t c = 0;
ptrdiff_t i, j;
|
991fdf | 2000-05-25 | Fredrik Hübinette (Hubbe) | |
switch (needle->len)
{
case 0:
switch (haystack->len)
{
case 0: c=1; break; /* "" appears one time in "" */
case 1: c=0; break; /* "" doesn't appear in "x" */
default: c=haystack->len-1; /* one time between each character */
}
break;
case 1:
/* maybe optimize? */
|
c5e2a4 | 2004-04-30 | Martin Nilsson | | /* It is already fairly optimized in pike_search_engine. */
|
991fdf | 2000-05-25 | Fredrik Hübinette (Hubbe) | | default:
for (i=0; i<haystack->len; i++)
{
j=string_search(haystack,needle,i);
if (j==-1) break;
i=j+needle->len-1;
c++;
}
break;
}
|
661305 | 2000-08-10 | Henrik Grubbström (Grubba) | | RETURN DO_NOT_WARN((INT_TYPE)c);
|
991fdf | 2000-05-25 | Fredrik Hübinette (Hubbe) | | }
|
31acb7 | 2001-07-26 | Martin Nilsson | | /*! @decl string trim_whites (string s)
*! @belongs String
|
5117f1 | 2001-04-16 | Martin Stjernholm | | *!
*! Trim leading and trailing spaces and tabs from the string @[s].
*/
PIKEFUN string string_trim_whites (string s)
errname String.trim_whites;
optflags OPT_TRY_OPTIMIZE;
{
ptrdiff_t start = 0, end = s->len;
int chr;
switch (s->size_shift) {
#define DO_IT(TYPE) \
{ \
for (; start < s->len; start++) { \
chr = ((TYPE *) s->str)[start]; \
if (chr != ' ' && chr != '\t') break; \
} \
while (--end > start) { \
chr = ((TYPE *) s->str)[end]; \
if (chr != ' ' && chr != '\t') break; \
} \
}
case 0: DO_IT (p_wchar0); break;
case 1: DO_IT (p_wchar1); break;
case 2: DO_IT (p_wchar2); break;
#undef DO_IT
}
RETURN string_slice (s, start, end + 1 - start);
}
|
31acb7 | 2001-07-26 | Martin Nilsson | | /*! @decl string trim_all_whites (string s)
*! @belongs String
|
5117f1 | 2001-04-16 | Martin Stjernholm | | *!
*! Trim leading and trailing white spaces characters (space, tab,
*! newline and carriage return) from the string @[s].
*/
PIKEFUN string string_trim_all_whites (string s)
errname String.trim_all_whites;
optflags OPT_TRY_OPTIMIZE;
{
ptrdiff_t start = 0, end = s->len;
int chr;
switch (s->size_shift) {
#define DO_IT(TYPE) \
{ \
for (; start < s->len; start++) { \
chr = ((TYPE *) s->str)[start]; \
if (chr != ' ' && chr != '\t' && chr != '\n' && chr != '\r') \
break; \
} \
while (--end > start) { \
chr = ((TYPE *) s->str)[end]; \
if (chr != ' ' && chr != '\t' && chr != '\n' && chr != '\r') \
break; \
} \
}
case 0: DO_IT (p_wchar0); break;
case 1: DO_IT (p_wchar1); break;
case 2: DO_IT (p_wchar2); break;
#undef DO_IT
}
RETURN string_slice (s, start, end + 1 - start);
}
|
31acb7 | 2001-07-26 | Martin Nilsson | | /*! @decl int implements(program prog, program api)
*! @belongs Program
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
*! Returns 1 if @[prog] implements @[api].
*/
|
b0f835 | 2001-01-07 | Henrik Grubbström (Grubba) | | PIKEFUN int program_implements(program prog, program api)
|
991fdf | 2000-05-25 | Fredrik Hübinette (Hubbe) | | errname Program.implements;
optflags OPT_TRY_OPTIMIZE;
{
|
b0f835 | 2001-01-07 | Henrik Grubbström (Grubba) | | RETURN implements(prog, api);
|
991fdf | 2000-05-25 | Fredrik Hübinette (Hubbe) | | }
|
31acb7 | 2001-07-26 | Martin Nilsson | | /*! @decl int inherits(program child, program parent)
*! @belongs Program
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
*! Returns 1 if @[child] has inherited @[parent].
*/
|
f3c715 | 2001-04-14 | Fredrik Hübinette (Hubbe) | | PIKEFUN int program_inherits(program parent, program child)
|
991fdf | 2000-05-25 | Fredrik Hübinette (Hubbe) | | errname Program.inherits;
optflags OPT_TRY_OPTIMIZE;
{
|
f3c715 | 2001-04-14 | Fredrik Hübinette (Hubbe) | | RETURN low_get_storage(parent, child) != -1;
|
991fdf | 2000-05-25 | Fredrik Hübinette (Hubbe) | | }
|
31acb7 | 2001-07-26 | Martin Nilsson | | /*! @decl string defined(program p)
*! @belongs Program
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
*! Returns a string with filename and linenumber describing where
*! the program @[p] was defined.
*!
|
cbe8c9 | 2003-04-07 | Martin Nilsson | | *! The returned string is of the format @expr{"filename:linenumber"@}.
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
|
cbe8c9 | 2003-04-07 | Martin Nilsson | | *! If it cannot be determined where the program was defined, @expr{0@}
*! (zero) will be returned.
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | */
|
b8c5b2 | 2000-05-25 | Fredrik Hübinette (Hubbe) | | PIKEFUN string program_defined(program p)
errname Program.defined;
optflags OPT_TRY_OPTIMIZE;
{
|
9de5ff | 2002-12-01 | Martin Stjernholm | | INT32 line;
struct pike_string *tmp = low_get_program_line(p, &line);
|
b8c5b2 | 2000-05-25 | Fredrik Hübinette (Hubbe) | |
|
9de5ff | 2002-12-01 | Martin Stjernholm | | pop_n_elems(args);
|
50edc8 | 2001-07-13 | Henrik Grubbström (Grubba) | |
|
9de5ff | 2002-12-01 | Martin Stjernholm | | if (tmp) {
|
50edc8 | 2001-07-13 | Henrik Grubbström (Grubba) | | push_string(tmp);
if(line >= 1)
{
push_constant_text(":");
push_int(line);
f_add(3);
|
b8c5b2 | 2000-05-25 | Fredrik Hübinette (Hubbe) | | }
}
|
9de5ff | 2002-12-01 | Martin Stjernholm | | else
push_int(0);
|
b8c5b2 | 2000-05-25 | Fredrik Hübinette (Hubbe) | | }
|
31acb7 | 2001-07-26 | Martin Nilsson | | /*! @decl int(8..8)|int(16..16)|int(32..32) width(string s)
*! @belongs String
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
*! Returns the width of a string.
*!
*! Three return values are possible:
*! @int
*! @value 8
*! The string @[s] only contains characters <= 255.
*! @value 16
*! The string @[s] only contains characters <= 65535.
*! @value 32
*! The string @[s] contains characters >= 65536.
*! @endint
*/
|
d6fd96 | 2001-02-10 | Henrik Grubbström (Grubba) | | PIKEFUN int(8 .. 8)|int(16 .. 16)|int(32 .. 32) string_width(string s)
|
991fdf | 2000-05-25 | Fredrik Hübinette (Hubbe) | | errname String.width;
optflags OPT_TRY_OPTIMIZE;
{
RETURN 8 * (1 << s->size_shift);
}
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | /*! @decl mixed m_delete(object|mapping map, mixed index)
*!
*! If @[map] is an object that implements @[lfun::_m_delete()],
|
dd5cba | 2003-02-10 | Marek Habersack | | *! that function will be called with @[index] as its single argument.
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
|
dd5cba | 2003-02-10 | Marek Habersack | | *! Otherwise if @[map] is a mapping the entry with index @[index]
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *! will be removed from @[map] destructively.
*!
*! If the mapping does not have an entry with index @[index], nothing is done.
*!
*! @returns
|
52ced6 | 2003-02-11 | Henrik Grubbström (Grubba) | | *! The value that was removed will be returned.
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
*! @note
*! Note that @[m_delete()] changes @[map] destructively.
*!
*! @seealso
*! @[mappingp()]
*/
|
a3453e | 2001-02-05 | Per Hedbor | | PIKEFUN mixed m_delete(object|mapping map, mixed index)
|
7f80d4 | 2000-06-19 | Fredrik Hübinette (Hubbe) | | efun;
optflags OPT_SIDE_EFFECT;
|
d8a04b | 2005-11-14 | Martin Nilsson | | rawtype tOr(tFunc(tMap(tSetvar(0,tMix),tSetvar(1,tMix)) tVar(0),tVar(1)),tFunc(tObj tMix,tMix))
|
7f80d4 | 2000-06-19 | Fredrik Hübinette (Hubbe) | | {
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | struct program *p;
|
a3453e | 2001-02-05 | Per Hedbor | | if( map->type == T_MAPPING )
{
struct svalue s;
map_delete_no_free(map->u.mapping, index, &s);
pop_n_elems(args);
|
cbaa3a | 2002-05-24 | Henrik Grubbström (Grubba) | | *Pike_sp=s;
Pike_sp++;
|
cdf18a | 2003-03-14 | Henrik Grubbström (Grubba) | | dmalloc_touch_svalue(Pike_sp-1);
|
a3453e | 2001-02-05 | Per Hedbor | | }
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | else if (map->type == T_OBJECT && (p = map->u.object->prog))
|
a3453e | 2001-02-05 | Per Hedbor | | {
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | int id = FIND_LFUN(p->inherits[map->subtype].prog, LFUN__M_DELETE);
|
ea5601 | 2001-02-09 | Per Hedbor | |
if( id == -1 )
|
e78601 | 2003-02-11 | Marek Habersack | | SIMPLE_BAD_ARG_ERROR("m_delete", 1, "object containing the _m_delete method");
|
ea5601 | 2001-02-09 | Per Hedbor | |
|
2a8be1 | 2004-12-21 | Henrik Grubbström (Grubba) | | apply_low(map->u.object,
id + p->inherits[map->subtype].identifier_level, 1);
|
a3453e | 2001-02-05 | Per Hedbor | | stack_swap();
pop_stack();
|
79f698 | 2001-02-05 | Henrik Grubbström (Grubba) | | } else {
SIMPLE_BAD_ARG_ERROR("m_delete", 1, "object|mapping");
|
a3453e | 2001-02-05 | Per Hedbor | | }
|
7f80d4 | 2000-06-19 | Fredrik Hübinette (Hubbe) | | }
|
9da7f4 | 2001-06-05 | Martin Stjernholm | | /*! @decl int get_weak_flag(array|mapping|multiset m)
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | *!
|
9da7f4 | 2001-06-05 | Martin Stjernholm | | *! Returns the weak flag settings for @[m]. It's a combination of
*! @[Pike.WEAK_INDICES] and @[Pike.WEAK_VALUES].
|
049833 | 2001-02-10 | Henrik Grubbström (Grubba) | | */
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | PIKEFUN int get_weak_flag(array m)
|
ee9fa9 | 2000-07-06 | Martin Stjernholm | | efun;
|
8f998d | 2000-08-31 | Henrik Grubbström (Grubba) | | optflags OPT_EXTERNAL_DEPEND;
|
ee9fa9 | 2000-07-06 | Martin Stjernholm | | {
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | RETURN (m->flags & ARRAY_WEAK_FLAG) ? PIKE_WEAK_VALUES : 0;
}
PIKEFUN int get_weak_flag(mapping m)
{
RETURN mapping_get_flags(m) & MAPPING_WEAK;
}
PIKEFUN int get_weak_flag(multiset m)
{
|
5b15bb | 2001-12-10 | Martin Stjernholm | | RETURN multiset_get_flags(m) & MULTISET_WEAK;
|
ee9fa9 | 2000-07-06 | Martin Stjernholm | | }
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl program __empty_program(int|void line, string|void file)
*/
|
9de5ff | 2002-12-01 | Martin Stjernholm | | PIKEFUN program __empty_program(int|void line, string|void file)
|
aa68b1 | 2001-03-19 | Fredrik Hübinette (Hubbe) | | efun;
optflags OPT_EXTERNAL_DEPEND;
{
|
9de5ff | 2002-12-01 | Martin Stjernholm | | if (line && line->type != T_INT)
SIMPLE_BAD_ARG_ERROR("__empty_program", 1, "int|void");
else {
struct program *prog = low_allocate_program();
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | if (file) ext_store_program_line (prog, line->u.integer, file);
|
9de5ff | 2002-12-01 | Martin Stjernholm | | RETURN prog;
}
|
aa68b1 | 2001-03-19 | Fredrik Hübinette (Hubbe) | | }
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | /*! @decl string function_name(function f)
*!
*! Return the name of the function @[f].
*!
|
cbe8c9 | 2003-04-07 | Martin Nilsson | | *! If @[f] is a global function defined in the runtime @expr{0@}
*! (zero) will be returned.
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | *!
*! @seealso
*! @[function_object()]
*/
PIKEFUN string function_name(program|function func)
efun;
optflags OPT_TRY_OPTIMIZE;
{
switch(func->type)
{
default:
|
d4ecd7 | 2003-01-05 | Martin Nilsson | | SIMPLE_BAD_ARG_ERROR("function_name", 1, "function|program");
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | return; /* NOTREACHED */
case PIKE_T_PROGRAM:
{
struct program *p=func->u.program;
if(p->parent)
{
int e;
p=p->parent;
/* search constants in parent for this
* program...
*/
for(e = p->num_identifier_references; e--; )
{
struct identifier *id;
if (p->identifier_references[e].id_flags & ID_HIDDEN)
continue;
id = ID_FROM_INT(p, e);
if (IDENTIFIER_IS_CONSTANT(id->identifier_flags) &&
|
d12fe4 | 2003-08-20 | Henrik Grubbström (Grubba) | | (id->func.offset >= 0) &&
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | is_eq( & PROG_FROM_INT(p, e)->constants[id->func.offset].sval,
func))
REF_RETURN id->name;
}
|
52ced6 | 2003-02-11 | Henrik Grubbström (Grubba) | | #ifdef PIKE_DEBUG
if (d_flag>5) {
fprintf(stderr,
|
2523ce | 2003-04-28 | Martin Stjernholm | | "Failed to find symbol for program %p\n"
|
52ced6 | 2003-02-11 | Henrik Grubbström (Grubba) | | "Parent program info:\n",
func->u.program);
dump_program_tables(func->u.program->parent, 0);
}
#endif
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | }
break;
}
case PIKE_T_FUNCTION:
if(func->subtype == FUNCTION_BUILTIN) break;
if(!func->u.object->prog)
bad_arg_error("function_name", Pike_sp-args, args, 1,
"function", Pike_sp-args,
"Destructed object.\n");
|
5a6d7d | 2001-04-10 | Fredrik Hübinette (Hubbe) | | if(func->u.object->prog == pike_trampoline_program)
{
struct pike_trampoline *t;
t=((struct pike_trampoline *)func->u.object->storage);
if(t->frame->current_object->prog)
REF_RETURN ID_FROM_INT(t->frame->current_object->prog,
t->func)->name;
}
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | |
REF_RETURN ID_FROM_INT(func->u.object->prog, func->subtype)->name;
}
pop_n_elems(args);
push_int(0);
}
|
641061 | 2003-01-08 | Henrik Grubbström (Grubba) | | /*! @decl object function_object(function f)
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | *!
|
641061 | 2003-01-08 | Henrik Grubbström (Grubba) | | *! Return the object the function @[f] is in.
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | *!
|
cbe8c9 | 2003-04-07 | Martin Nilsson | | *! If @[f] is a global function defined in the runtime @expr{0@}
*! (zero) will be returned.
|
641061 | 2003-01-08 | Henrik Grubbström (Grubba) | | *!
*! Zero will also be returned if @[f] is a constant in the
*! parent class. In that case @[function_program()] can be
*! used to get the parent program.
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | *!
*! @seealso
|
641061 | 2003-01-08 | Henrik Grubbström (Grubba) | | *! @[function_name()], @[function_program()]
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | */
|
51adb8 | 2003-01-12 | Martin Stjernholm | | PIKEFUN object function_object(function|program func)
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | efun;
optflags OPT_TRY_OPTIMIZE;
|
641061 | 2003-01-08 | Henrik Grubbström (Grubba) | | type function(function:object);
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | {
switch(func->type)
{
case PIKE_T_PROGRAM:
|
641061 | 2003-01-08 | Henrik Grubbström (Grubba) | | break;
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | |
case PIKE_T_FUNCTION:
if(func->subtype == FUNCTION_BUILTIN) break;
|
5a6d7d | 2001-04-10 | Fredrik Hübinette (Hubbe) | | if(func->u.object->prog == pike_trampoline_program)
{
struct object *o;
o=((struct pike_trampoline *)func->u.object->storage)->frame->current_object;
add_ref(o);
pop_n_elems(args);
push_object(o);
return;
}
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | func->type=T_OBJECT;
|
f46256 | 2004-12-19 | Henrik Grubbström (Grubba) | | func->subtype = 0;
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | return;
|
5a6d7d | 2001-04-10 | Fredrik Hübinette (Hubbe) | |
default:
SIMPLE_BAD_ARG_ERROR("function_object",1,"function");
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | | }
pop_n_elems(args);
push_int(0);
}
|
641061 | 2003-01-08 | Henrik Grubbström (Grubba) | | /*! @decl program function_program(function|program f)
*!
*! Return the program the function @[f] is in.
*!
|
cbe8c9 | 2003-04-07 | Martin Nilsson | | *! If @[f] is a global function defined in the runtime @expr{0@}
*! (zero) will be returned.
|
641061 | 2003-01-08 | Henrik Grubbström (Grubba) | | *!
*! @seealso
*! @[function_name()], @[function_object()]
*/
PIKEFUN program function_program(program|function func)
efun;
optflags OPT_TRY_OPTIMIZE;
{
switch(func->type)
{
case PIKE_T_PROGRAM:
{
struct program *p;
if(!(p=func->u.program->parent)) break;
add_ref(p);
free_program(func->u.program);
func->u.program=p;
return;
}
case PIKE_T_FUNCTION:
{
struct program *p;
|
48a624 | 2003-05-31 | Martin Stjernholm | | if(func->subtype == FUNCTION_BUILTIN)
p = func->u.efun->prog;
else
p = func->u.object->prog;
|
641061 | 2003-01-08 | Henrik Grubbström (Grubba) | | if(p == pike_trampoline_program)
{
p = ((struct pike_trampoline *)func->u.object->storage)->
frame->current_object->prog;
}
if (p) {
ref_push_program(p);
stack_pop_n_elems_keep_top(args);
return;
}
}
break;
default:
SIMPLE_BAD_ARG_ERROR("function_program", 1, "function");
}
pop_n_elems(args);
push_int(0);
}
|
1c1c5e | 2001-04-08 | Fredrik Hübinette (Hubbe) | |
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl mixed random(object o)
*! If random is called with an object, @[lfun::random] will be
*! called in the object.
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | | *! @seealso
|
18c225 | 2003-04-10 | Martin Nilsson | | *! @[lfun::_random]
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | | */
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | |
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl mixed lfun::_random()
*! Called by @[random]. Typical uses is when the object implements
*! a ADT, then a call to this lfun should return a random member of
*! the ADT or range implied by the ADT.
*! @seealso
*! @[predef::random()]
*/
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | |
PIKEFUN mixed random(object o)
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | | efun;
optflags OPT_TRY_OPTIMIZE|OPT_EXTERNAL_DEPEND;
{
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | apply(o,"_random",0);
stack_swap();
pop_stack();
}
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | |
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl int random(int max)
*! @decl float random(float max)
*!
*! This function returns a random number in the range 0 - @[max]-1.
*!
*! @seealso
*! @[random_seed()]
*/
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | PIKEFUN int random(int i)
{
if(i <= 0) RETURN 0;
RETURN my_rand() % i;
}
PIKEFUN float random(float f)
{
if(f<=0.0) RETURN 0.0;
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | | #define N 1048576
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | RETURN f * (my_rand()%N/((float)N)) +
f * (my_rand()%N/( ((float)N) * ((float)N) ));
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | |
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | }
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | |
|
786785 | 2004-03-02 | Martin Nilsson | | /*! @decl mixed random(array|multiset x)
|
18c225 | 2003-04-10 | Martin Nilsson | | *! Returns a random element from @[x].
*/
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | PIKEFUN mixed random(array a)
|
3a2fe1 | 2004-02-14 | Martin Nilsson | | rawtype tFunc(tArr(tSetvar(0,tMix)),tVar(0));
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | {
if(!a->size)
SIMPLE_BAD_ARG_ERROR("random", 1, "array with elements in it");
push_svalue(a->item + (my_rand() % a->size));
stack_swap();
pop_stack();
}
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | |
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | PIKEFUN mixed random(multiset m)
|
3a2fe1 | 2004-02-14 | Martin Nilsson | | rawtype tFunc(tSet(tSetvar(1,tMix)),tVar(1));
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | {
|
5b15bb | 2001-12-10 | Martin Stjernholm | | if(multiset_is_empty (m))
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | SIMPLE_BAD_ARG_ERROR("random", 1, "multiset with elements in it");
|
5b15bb | 2001-12-10 | Martin Stjernholm | | if (multiset_indval (m)) {
ptrdiff_t nodepos = multiset_get_nth (m, my_rand() % multiset_sizeof (m));
push_multiset_index (m, nodepos);
push_multiset_value (m, nodepos);
sub_msnode_ref (m);
f_aggregate (2);
}
else {
|
eb82b8 | 2004-04-06 | Martin Nilsson | | push_multiset_index (m, multiset_get_nth (m, my_rand() %
multiset_sizeof (m)));
|
5b15bb | 2001-12-10 | Martin Stjernholm | | sub_msnode_ref (m);
}
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | stack_swap();
pop_stack();
}
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | |
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl array random(mapping m)
*! Returns a random index-value pair from the mapping.
*/
|
5b15bb | 2001-12-10 | Martin Stjernholm | | PIKEFUN array random(mapping m)
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | | {
struct mapping_data *md=m->data;
size_t bucket, count;
struct keypair *k;
if(!m_sizeof(m))
SIMPLE_BAD_ARG_ERROR("random", 1, "mapping with elements in it");
/* Find a random, nonempty bucket */
bucket=my_rand() % md->hashsize;
while(! md->hash[bucket] )
if(++bucket > (size_t)md->hashsize)
bucket=0;
/* Count entries in bucket */
count=0;
for(k=md->hash[bucket];k;k=k->next) count++;
/* Select a random entry in this bucket */
count = my_rand() % count;
k=md->hash[bucket];
while(count-- > 0) k=k->next;
/* Push result and return */
push_svalue(&k->ind);
push_svalue(&k->val);
f_aggregate(2);
stack_swap();
pop_stack();
|
d95fa8 | 2001-06-05 | Fredrik Hübinette (Hubbe) | | }
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | /*
* Backtrace handling.
*/
|
bcbce0 | 2001-08-15 | Martin Nilsson | | /*! @module Pike
*/
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | /*! @class BacktraceFrame
*/
PIKECLASS backtrace_frame
{
|
f61a48 | 2001-06-19 | Henrik Grubbström (Grubba) | | PIKEVAR mixed fun;
|
2aca9f | 2001-06-19 | Henrik Grubbström (Grubba) | | PIKEVAR array args;
|
73b08f | 2003-01-31 | Martin Stjernholm | |
/* These are cleared when filename and lineno has been initialized
* from them. */
|
588bd9 | 2004-04-18 | Martin Stjernholm | | PIKEVAR program prog flags ID_STATIC|ID_PRIVATE;
|
90f876 | 2002-04-08 | Martin Stjernholm | | CVAR PIKE_OPCODE_T *pc;
|
73b08f | 2003-01-31 | Martin Stjernholm | |
/* These two are considered to be uninitialized from prog, pc and
* fun as long as lineno == -1. */
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | CVAR struct pike_string *filename;
|
69aa4b | 2003-01-26 | Mirar (Pontus Hagland) | | CVAR INT32 lineno;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | |
INIT
{
|
90f876 | 2002-04-08 | Martin Stjernholm | | THIS->pc = NULL;
|
73b08f | 2003-01-31 | Martin Stjernholm | | THIS->lineno = -1;
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | THIS->filename = NULL;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
EXIT
{
if (THIS->filename) {
free_string(THIS->filename);
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | THIS->filename = NULL;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | THIS->pc = NULL;
|
73b08f | 2003-01-31 | Martin Stjernholm | | THIS->lineno = -1;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl int(0..1) _is_type(string t)
*! This object claims to be an array for backward compatibility.
*/
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | PIKEFUN int(0..1) _is_type(string t)
{
INT_TYPE res = (t == findstring("array"));
pop_n_elems(args);
push_int(res);
}
|
73b08f | 2003-01-31 | Martin Stjernholm | | static void fill_in_file_and_line()
{
|
0469ba | 2004-02-10 | Martin Stjernholm | | struct pike_string *file = NULL;
|
73b08f | 2003-01-31 | Martin Stjernholm | | assert (THIS->lineno == -1);
if (THIS->pc && THIS->prog) {
file = low_get_line(THIS->pc, THIS->prog, &THIS->lineno);
THIS->pc = NULL;
}
|
d19162 | 2006-03-22 | Henrik Grubbström (Grubba) | | else if (THIS->fun.type == PIKE_T_FUNCTION) {
|
73b08f | 2003-01-31 | Martin Stjernholm | | file = low_get_function_line (THIS->fun.u.object, THIS->fun.subtype,
&THIS->lineno);
|
d19162 | 2006-03-22 | Henrik Grubbström (Grubba) | | }
else if (THIS->prog) {
|
73b08f | 2003-01-31 | Martin Stjernholm | | file = low_get_program_line (THIS->prog, &THIS->lineno);
|
d19162 | 2006-03-22 | Henrik Grubbström (Grubba) | | }
|
73b08f | 2003-01-31 | Martin Stjernholm | |
|
0469ba | 2004-02-10 | Martin Stjernholm | | if (file) {
if (!THIS->filename) THIS->filename = file;
else free_string (file);
}
|
73b08f | 2003-01-31 | Martin Stjernholm | |
if (THIS->prog) {
free_program(THIS->prog);
THIS->prog = NULL;
}
}
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl string _sprintf(int c, mapping|void opts)
*/
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | PIKEFUN string _sprintf(int c, mapping|void opts)
{
pop_n_elems(args);
|
e6dbc2 | 2002-11-29 | Marcus Comstedt | | if (c != 'O') {
push_undefined ();
return;
}
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | push_text("backtrace_frame(");
|
73b08f | 2003-01-31 | Martin Stjernholm | |
if (THIS->lineno == -1) fill_in_file_and_line();
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | if (THIS->filename) {
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | ref_push_string(THIS->filename);
push_text(":");
push_int(THIS->lineno);
push_text(", ");
f_add(4);
} else {
push_text("Unknown file, ");
}
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | if (THIS->fun.type == PIKE_T_FUNCTION) {
if (THIS->fun.u.object->prog) {
push_svalue(&THIS->fun);
f_function_name(1);
push_text("(), ");
f_add(2);
} else {
free_svalue(&THIS->fun);
THIS->fun.type = PIKE_T_INT;
THIS->fun.u.integer = 0;
THIS->fun.subtype = NUMBER_DESTRUCTED;
push_text("destructed_function(), ");
}
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | } else {
push_text("destructed_function(), ");
}
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | if (THIS->args) {
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | push_text("Args: ");
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | push_int(THIS->args->size);
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | f_add(2);
} else {
push_text("No args");
}
push_text(")");
f_add(5);
}
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl int(3..) _sizeof()
*/
PIKEFUN int(3..) _sizeof()
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | {
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | if (THIS->args) {
push_int(THIS->args->size + 3);
} else {
push_int(3);
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
}
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl mixed `[](int index, int|void end_or_none)
*! The BacktraceFrame object can be indexed as an array.
*/
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | PIKEFUN mixed `[](int index, int|void end_or_none)
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | {
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | INT_TYPE end = index;
INT32 numargs = 0;
INT32 i;
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | if (THIS->args) {
numargs = THIS->args->size;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | |
numargs += 3;
if (!end_or_none) {
if (index < 0) {
index_error("pike_frame->`[]", Pike_sp-args, args, NULL, Pike_sp-args,
"Indexing with negative index (%"PRINTPIKEINT"d)\n", index);
} else if (index >= numargs) {
index_error("pike_frame->`[]", Pike_sp-args, args, NULL, Pike_sp-args,
"Indexing with too large index (%"PRINTPIKEINT"d)\n", index);
}
} else {
if (end_or_none->type != PIKE_T_INT) {
SIMPLE_BAD_ARG_ERROR("`[]",2,"int|void");
}
end = end_or_none->u.integer;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
pop_n_elems(args);
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | if (end_or_none) {
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | if ((end < 0) || (end < index) || (index >= numargs)) {
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | f_aggregate(0);
return;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | |
if (end >= numargs) {
end = numargs-1;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | }
for (i = index; i <= end; i++) {
switch(i) {
case 0: /* Filename */
|
73b08f | 2003-01-31 | Martin Stjernholm | | if (THIS->lineno == -1) fill_in_file_and_line();
if (THIS->filename) {
ref_push_string(THIS->filename);
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | } else {
|
73b08f | 2003-01-31 | Martin Stjernholm | | push_int(0);
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | }
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | break;
|
73b08f | 2003-01-31 | Martin Stjernholm | | case 1: /* Linenumber */
if (THIS->lineno == -1) fill_in_file_and_line();
push_int(THIS->lineno);
break;
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | case 2: /* Function */
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | push_svalue(&THIS->fun);
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | break;
default: /* Arguments */
{
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | if ((i > 2) && (THIS->args) && (i-3 < THIS->args->size)) {
push_svalue(THIS->args->item + (i - 3));
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | break;
}
bad_arg_error("backtrace_frame->`[]", Pike_sp-args, args, 1,
"int(0..)", Pike_sp-args,
"Bad argument 1 to backtrace_frame->`[](): "
"Expected int(0..%d)\n",
numargs + 2);
}
/* NOT_REACHED */
break;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | | }
if (end_or_none) {
f_aggregate(1 + end - index);
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
}
|
d2cd4e | 2001-06-18 | Henrik Grubbström (Grubba) | |
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl mixed `[]=(int index, mixed value)
*/
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | PIKEFUN mixed `[]=(int index, mixed value)
{
INT32 numargs = 0;
if (THIS->args) {
numargs = THIS->args->size;
}
numargs += 3;
if ((index < -numargs) || (index >= numargs)) {
index_error("pike_frame->`[]=", Pike_sp-args, args, NULL, Pike_sp-args,
|
b99d88 | 2003-05-15 | Martin Stjernholm | | "Index %"PRINTPIKEINT"d is out of array range 0..%d,\n",
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | index, numargs-1);
} else if (index < 0) {
index += numargs;
}
if (args > 2) {
pop_n_elems(args - 2);
args = 2;
}
switch(index) {
case 0: /* Filename */
|
73b08f | 2003-01-31 | Martin Stjernholm | | if (THIS->lineno == -1) fill_in_file_and_line();
if (value->type != PIKE_T_STRING) {
if ((value->type != PIKE_T_INT) ||
(value->u.integer)) {
SIMPLE_BAD_ARG_ERROR("backtrace_frame->`[]=", 2,
"string|int(0..0)");
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | }
|
73b08f | 2003-01-31 | Martin Stjernholm | | if (THIS->filename) {
free_string(THIS->filename);
THIS->filename = NULL;
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | }
} else {
|
73b08f | 2003-01-31 | Martin Stjernholm | | if (THIS->filename) {
free_string(THIS->filename);
THIS->filename = NULL;
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | }
|
73b08f | 2003-01-31 | Martin Stjernholm | | copy_shared_string(THIS->filename, value->u.string);
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | }
break;
|
73b08f | 2003-01-31 | Martin Stjernholm | |
case 1: /* Linenumber */
if (THIS->lineno == -1) fill_in_file_and_line();
if (value->type != PIKE_T_INT) {
SIMPLE_BAD_ARG_ERROR("backtrace_frame->`[]=", 2, "int(1..)");
}
THIS->lineno = value->u.integer;
break;
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | case 2: /* Function */
|
73b08f | 2003-01-31 | Martin Stjernholm | | if (THIS->lineno == -1) fill_in_file_and_line();
|
1073bf | 2001-06-26 | Henrik Grubbström (Grubba) | | assign_svalue(&THIS->fun, value);
break;
default: /* Arguments */
assign_svalue(THIS->args->item + index - 3, value);
break;
}
stack_swap();
pop_stack();
}
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | };
/*! @endclass
*/
|
bcbce0 | 2001-08-15 | Martin Nilsson | | /*! @endmodule
*/
|
a8e989 | 2001-09-05 | Fredrik Hübinette (Hubbe) | | void low_backtrace(struct Pike_interpreter *i)
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | {
|
b85fa0 | 2003-02-24 | Martin Stjernholm | | struct svalue *stack_top = i->stack_pointer;
|
c98dd2 | 2001-06-26 | Martin Stjernholm | | struct pike_frame *f, *of = 0;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | int size = 0;
|
9906e3 | 2001-06-20 | Henrik Grubbström (Grubba) | | struct array *res = NULL;
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | |
|
a8e989 | 2001-09-05 | Fredrik Hübinette (Hubbe) | | for (f = i->frame_pointer; f; f = f->next) {
|
9906e3 | 2001-06-20 | Henrik Grubbström (Grubba) | | size++;
}
res = allocate_array_no_init(size, 0);
push_array(res);
|
a8e989 | 2001-09-05 | Fredrik Hübinette (Hubbe) | | for (f = i->frame_pointer; f && size; f = (of = f)->next) {
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | struct object *o = low_clone(backtrace_frame_program);
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | struct backtrace_frame_struct *bf;
|
e89d72 | 2002-01-04 | Henrik Grubbström (Grubba) | | struct identifier *function = NULL;
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | |
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | call_c_initializers(o);
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | |
|
9906e3 | 2001-06-20 | Henrik Grubbström (Grubba) | | size--;
res->item[size].u.object = o;
res->item[size].type = PIKE_T_OBJECT;
res->item[size].subtype = 0;
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | bf = OBJ2_BACKTRACE_FRAME(o);
|
d19162 | 2006-03-22 | Henrik Grubbström (Grubba) | | bf->pc = NULL;
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | |
if ((bf->prog = f->context.prog)) {
add_ref(bf->prog);
}
if ((bf->fun.u.object = f->current_object) &&
(bf->fun.u.object->prog)) {
add_ref(bf->fun.u.object);
bf->fun.subtype = f->fun;
bf->fun.type = PIKE_T_FUNCTION;
|
e89d72 | 2002-01-04 | Henrik Grubbström (Grubba) | | function = ID_FROM_INT(f->current_object->prog, f->fun);
|
d19162 | 2006-03-22 | Henrik Grubbström (Grubba) | |
if (IDENTIFIER_IS_PIKE_FUNCTION(function->identifier_flags)) {
/* We don't trust pc if we aren't in a Pike function... */
bf->pc = f->pc;
}
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | } else {
bf->fun.u.integer = 0;
bf->fun.subtype = NUMBER_DESTRUCTED;
bf->fun.type = PIKE_T_INT;
}
if (f->locals) {
INT32 numargs = DO_NOT_WARN((INT32) MINIMUM(f->num_args,
|
b85fa0 | 2003-02-24 | Martin Stjernholm | | stack_top - f->locals));
|
e89d72 | 2002-01-04 | Henrik Grubbström (Grubba) | | INT32 varargs = 0;
|
da9069 | 2002-11-26 | Henrik Grubbström (Grubba) | | if(of) {
|
c98dd2 | 2001-06-26 | Martin Stjernholm | | /* f->num_args can be too large, so this is necessary for some
* reason. I don't know why. /mast */
numargs = DO_NOT_WARN((INT32)MINIMUM(f->num_args,of->locals - f->locals));
|
da9069 | 2002-11-26 | Henrik Grubbström (Grubba) | | }
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | |
numargs = MAXIMUM(numargs, 0);
|
e89d72 | 2002-01-04 | Henrik Grubbström (Grubba) | | /* Handle varargs... */
if (function && (function->identifier_flags & IDENTIFIER_VARARGS) &&
|
b85fa0 | 2003-02-24 | Martin Stjernholm | | (f->locals + numargs < stack_top) &&
|
e89d72 | 2002-01-04 | Henrik Grubbström (Grubba) | | (f->locals[numargs].type == T_ARRAY)) {
varargs = f->locals[numargs].u.array->size;
}
if (numargs + varargs) {
bf->args = allocate_array_no_init(numargs + varargs, 0);
|
2523ce | 2003-04-28 | Martin Stjernholm | | bf->args->type_field =
assign_svalues_no_free(bf->args->item, f->locals, numargs, BIT_MIXED);
|
e89d72 | 2002-01-04 | Henrik Grubbström (Grubba) | | if (varargs) {
|
2523ce | 2003-04-28 | Martin Stjernholm | | bf->args->type_field |=
assign_svalues_no_free(bf->args->item + numargs,
f->locals[numargs].u.array->item,
varargs, BIT_MIXED);
|
e89d72 | 2002-01-04 | Henrik Grubbström (Grubba) | | }
|
0f47db | 2001-06-19 | Henrik Grubbström (Grubba) | | }
}
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
|
2523ce | 2003-04-28 | Martin Stjernholm | | res->type_field = BIT_OBJECT;
|
9906e3 | 2001-06-20 | Henrik Grubbström (Grubba) | | /* NOTE: res has already been pushed on the stack. */
|
d27df5 | 2001-06-18 | Henrik Grubbström (Grubba) | | }
|
e1b419 | 2001-06-06 | Fredrik Hübinette (Hubbe) | |
|
a8e989 | 2001-09-05 | Fredrik Hübinette (Hubbe) | | /*! @decl array(Pike.BacktraceFrame) backtrace()
*!
*! FIXME: This documentation is not up to date!
*!
*! Get a description of the current call stack.
*!
*! The description is returned as an array with one entry for each call
*! frame on the stack.
*!
*! Each entry has this format:
*! @array
*! @elem string file
*! A string with the filename if known, else zero.
*! @elem int line
*! An integer containing the linenumber if known, else zero.
*! @elem function fun
*! The function that was called at this level.
*! @elem mixed|void ... args
*! The arguments that the function was called with.
*! @endarray
*!
*! The current call frame will be last in the array.
*!
*! @note
*! Please note that the frame order may be reversed in a later version
|
c71704 | 2003-03-12 | Marcus Agehall | | *! (than 7.1) of Pike to accommodate for deferred backtraces.
|
a8e989 | 2001-09-05 | Fredrik Hübinette (Hubbe) | | *!
*! Note that the arguments reported in the backtrace are the current
*! values of the variables, and not the ones that were at call-time.
*! This can be used to hide sensitive information from backtraces
*! (eg passwords).
*!
*! @seealso
*! @[catch()], @[throw()]
*/
PMOD_EXPORT
PIKEFUN array(mixed) backtrace()
efun;
optflags OPT_EXTERNAL_DEPEND;
{
low_backtrace(& Pike_interpreter);
}
|
a3c433 | 2001-06-20 | Per Hedbor | | #define INITIAL_BUF_LEN 4096
/*! @module String
*/
/*! @class Buffer
*! A buffer, used for building strings. It's
*! conceptually similar to a string, but you can only @[add]
*! strings to it, and you can only @[get] the value from it once.
*!
*! There is a reason for those seemingly rather odd limitations,
*! it makes it possible to do some optimizations that really speed
*! things up.
*!
*! You do not need to use this class unless you add very many
*! strings together, or very large strings.
*!
*! @example
*! For the fastest possible operation, write your code like this:
*!
|
f79bd8 | 2003-04-01 | Martin Nilsson | | *! @code
*! String.Buffer b = String.Buffer( );
|
a3c433 | 2001-06-20 | Per Hedbor | | *!
|
f79bd8 | 2003-04-01 | Martin Nilsson | | *! function add = b->add;
|
a3c433 | 2001-06-20 | Per Hedbor | | *!
|
f79bd8 | 2003-04-01 | Martin Nilsson | | *! .. call add several times in code ...
|
a3c433 | 2001-06-20 | Per Hedbor | | *!
|
f79bd8 | 2003-04-01 | Martin Nilsson | | *! string result = b->get(); // also clears the buffer
*! @endcode
|
a3c433 | 2001-06-20 | Per Hedbor | | */
|
41730d | 2001-07-26 | Martin Nilsson | | PIKECLASS Buffer
|
a3c433 | 2001-06-20 | Per Hedbor | | {
|
73b07a | 2001-06-21 | Per Hedbor | | CVAR struct string_builder str;
CVAR int initial;
|
a3c433 | 2001-06-20 | Per Hedbor | | void f_Buffer_get_copy( INT32 args );
void f_Buffer_get( INT32 args );
void f_Buffer_add( INT32 args );
|
a46585 | 2002-01-01 | Martin Nilsson | | /*! @decl void create(int initial_size)
|
41730d | 2001-07-26 | Martin Nilsson | | *!
*! Initializes a new buffer.
*!
|
1f88bf | 2001-09-24 | Henrik Grubbström (Grubba) | | *! If no @[initial_size] is specified, 256 is used. If you
|
41730d | 2001-07-26 | Martin Nilsson | | *! know approximately how big the buffer will be, you can optimize
*! the operation of @[add()] (slightly) by passing the size to this
*! function.
*/
|
a3c433 | 2001-06-20 | Per Hedbor | | PIKEFUN void create( int|void size )
{
struct Buffer_struct *str = THIS;
if( args )
str->initial = MAXIMUM( size->u.integer, 512 );
else
{
|
73b07a | 2001-06-21 | Per Hedbor | | str->initial = 256;
|
a3c433 | 2001-06-20 | Per Hedbor | | push_int(0);
}
}
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl string _sprintf( int flag, mapping flags )
*! It is possible to @[sprintf] a String.Buffer object
*! as @tt{%s@} just as if it was a string.
*/
|
a3c433 | 2001-06-20 | Per Hedbor | | PIKEFUN string _sprintf( int flag, mapping flags )
{
switch( flag )
{
case 'O':
{
struct pike_string *res;
struct Buffer_struct *str = THIS;
push_text( "Buffer(%d /* %d */)" );
|
73b07a | 2001-06-21 | Per Hedbor | | if( str->str.s )
|
a3c433 | 2001-06-20 | Per Hedbor | | {
|
73b07a | 2001-06-21 | Per Hedbor | | push_int(str->str.s->len);
push_int(str->str.malloced);
|
a3c433 | 2001-06-20 | Per Hedbor | | }
else
{
push_int( 0 );
push_int( 0 );
}
f_sprintf( 3 );
|
cdf18a | 2003-03-14 | Henrik Grubbström (Grubba) | | dmalloc_touch_svalue(Pike_sp-1);
|
a3c433 | 2001-06-20 | Per Hedbor | | res = Pike_sp[-1].u.string;
Pike_sp--;
RETURN res;
}
case 's':
{
pop_n_elems( args );
if( Pike_fp->current_object->refs != 1 )
f_Buffer_get_copy( 0 );
else
f_Buffer_get( 0 );
}
return;
case 't':
RETURN make_shared_binary_string("Buffer",6);
}
pop_n_elems( args );
push_int( 0 );
Pike_sp[-1].subtype = 1;
}
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl mixed cast( string type )
*! It is possible to cast a String.Buffer object to
*! a @expr{string@} and an @expr{int@}.
*/
|
a3c433 | 2001-06-20 | Per Hedbor | | PIKEFUN mixed cast( string type )
{
struct pike_string *string_t;
struct pike_string *int_t;
|
de56ec | 2003-02-08 | Martin Stjernholm | | MAKE_CONST_STRING( string_t, "string" );
MAKE_CONST_STRING( int_t, "int" );
|
a3c433 | 2001-06-20 | Per Hedbor | |
if( type == string_t )
{
pop_n_elems( args );
if( Pike_fp->current_object->refs != 1 )
f_Buffer_get_copy( 0 );
else
f_Buffer_get( 0 );
return;
}
if( type == int_t )
{
struct Buffer_struct *str = THIS;
pop_stack();
if( Pike_fp->current_object->refs != 1 )
f_Buffer_get_copy( 0 );
else
f_Buffer_get( 0 );
o_cast_to_int( );
return;
}
|
9606eb | 2004-11-12 | Henrik Grubbström (Grubba) | | Pike_error("Cannot cast to %S\n", type);
|
a3c433 | 2001-06-20 | Per Hedbor | | }
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl String.Buffer `+( string what )
*/
|
a3c433 | 2001-06-20 | Per Hedbor | | PIKEFUN object `+( string what )
{
struct Buffer_struct *str = THIS, *str2;
|
7906e0 | 2003-04-07 | Martin Stjernholm | | struct object *res = fast_clone_object( Buffer_program );
str2 = OBJ2_BUFFER( res );
str2->initial = str->initial;
|
73b07a | 2001-06-21 | Per Hedbor | | if( str->str.s )
|
7906e0 | 2003-04-07 | Martin Stjernholm | | init_string_builder_copy (&str2->str, &str->str);
|
a3c433 | 2001-06-20 | Per Hedbor | | apply( res, "add", 1 );
RETURN res;
}
|
173e87 | 2003-04-07 | Martin Stjernholm | |
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl String.Buffer `+=( string what )
*/
|
173e87 | 2003-04-07 | Martin Stjernholm | | PIKEFUN object `+=( string what )
{
f_Buffer_add( 1 );
REF_RETURN Pike_fp->current_object;
}
|
a3c433 | 2001-06-20 | Per Hedbor | |
|
4e5f5d | 2001-10-04 | Martin Nilsson | | /*! @decl int add(string ... data)
|
41730d | 2001-07-26 | Martin Nilsson | | *!
*! Adds @[data] to the buffer. Returns the size of the buffer.
*!
*/
|
3301b1 | 2001-06-20 | Per Hedbor | | PIKEFUN int add( string ... arg1 )
|
a3c433 | 2001-06-20 | Per Hedbor | | {
struct Buffer_struct *str = THIS;
|
97c558 | 2004-04-15 | Martin Stjernholm | | int init_from_arg0 = 0, j;
|
b195b9 | 2001-09-21 | Henrik Grubbström (Grubba) | |
if (!str->str.s && args) {
|
97c558 | 2004-04-15 | Martin Stjernholm | | ptrdiff_t sum = 0;
|
b195b9 | 2001-09-21 | Henrik Grubbström (Grubba) | | int shift = 0;
for (j=0; j < args; j++) {
struct pike_string *a = Pike_sp[j-args].u.string;
sum += a->len;
shift |= a->size_shift;
}
if (sum < str->initial) {
|
6ce014 | 2003-12-08 | Martin Nilsson | | sum = str->initial * 2;
|
b195b9 | 2001-09-21 | Henrik Grubbström (Grubba) | | }
|
73b08f | 2003-01-31 | Martin Stjernholm | | shift = shift & ~(shift >> 1);
|
97c558 | 2004-04-15 | Martin Stjernholm | |
if (shift == Pike_sp[-args].u.string->size_shift &&
init_string_builder_with_string (&str->str, Pike_sp[-args].u.string)) {
Pike_sp[-args].type = T_INT;
if (sum > str->str.s->len)
string_build_mkspace (&str->str, sum - str->str.s->len, shift);
init_from_arg0 = 1;
}
else
init_string_builder_alloc(&str->str, sum, shift);
|
73b08f | 2003-01-31 | Martin Stjernholm | | /* We know it will be a string that really is this wide. */
str->str.known_shift = shift;
|
b195b9 | 2001-09-21 | Henrik Grubbström (Grubba) | | }
|
a3c433 | 2001-06-20 | Per Hedbor | |
|
97c558 | 2004-04-15 | Martin Stjernholm | | for( j = init_from_arg0; j<args; j++ )
|
a3c433 | 2001-06-20 | Per Hedbor | | {
|
b195b9 | 2001-09-21 | Henrik Grubbström (Grubba) | | struct pike_string *a = Pike_sp[j-args].u.string;
|
73b07a | 2001-06-21 | Per Hedbor | | string_builder_shared_strcat( &str->str, a );
|
3301b1 | 2001-06-20 | Per Hedbor | | }
|
b195b9 | 2001-09-21 | Henrik Grubbström (Grubba) | |
if (str->str.s) {
RETURN str->str.s->len;
} else {
RETURN 0;
}
|
a3c433 | 2001-06-20 | Per Hedbor | | }
|
6ce014 | 2003-12-08 | Martin Nilsson | | /*! @decl void putchar(int c)
*! Appends the character @[c] at the end of the string.
*/
PIKEFUN void putchar(int c) {
struct Buffer_struct *str = THIS;
if(!str->str.s)
init_string_builder_alloc(&str->str, str->initial, 0);
string_builder_putchar(&str->str, c);
}
|
41730d | 2001-07-26 | Martin Nilsson | | /*! @decl string get_copy()
*!
*! Get the data from the buffer. Significantly slower than @[get],
*! but does not clear the buffer.
*/
|
a3c433 | 2001-06-20 | Per Hedbor | | PIKEFUN string get_copy()
{
|
73b07a | 2001-06-21 | Per Hedbor | | struct pike_string *str = THIS->str.s;
if( str )
|
a3c433 | 2001-06-20 | Per Hedbor | | {
|
73b07a | 2001-06-21 | Per Hedbor | | ptrdiff_t len = str->len;
if( len > 0 )
{
char *d = (char *)str->str;
switch( str->size_shift )
{
case 0:
|
d807d5 | 2002-10-15 | Henrik Grubbström (Grubba) | | RETURN make_shared_binary_string0((p_wchar0 *)d,len);
|
73b07a | 2001-06-21 | Per Hedbor | | break;
case 1:
|
28fe7d | 2003-07-28 | Martin Stjernholm | | RETURN make_shared_binary_string1((p_wchar1 *)d,len);
|
73b07a | 2001-06-21 | Per Hedbor | | break;
case 2:
|
28fe7d | 2003-07-28 | Martin Stjernholm | | RETURN make_shared_binary_string2((p_wchar2 *)d,len);
|
73b07a | 2001-06-21 | Per Hedbor | | break;
}
}
|
a3c433 | 2001-06-20 | Per Hedbor | | }
|
7863d6 | 2005-05-06 | Martin Nilsson | | push_empty_string();
|
73b07a | 2001-06-21 | Per Hedbor | | return;
|
a3c433 | 2001-06-20 | Per Hedbor | | }
|
41730d | 2001-07-26 | Martin Nilsson | | /*! @decl string get()
*!
*! Get the data from the buffer.
*!
*! @note
*! This will clear the data in the buffer
*/
|
a3c433 | 2001-06-20 | Per Hedbor | | PIKEFUN string get( )
{
struct Buffer_struct *str = THIS;
|
73b07a | 2001-06-21 | Per Hedbor | | if( str->str.s )
|
a3c433 | 2001-06-20 | Per Hedbor | | {
|
73b07a | 2001-06-21 | Per Hedbor | | struct pike_string *s = finish_string_builder( &str->str );
str->str.malloced = 0;
str->str.s = 0;
RETURN s;
|
a3c433 | 2001-06-20 | Per Hedbor | | }
|
73b07a | 2001-06-21 | Per Hedbor | | pop_n_elems(args);
|
7863d6 | 2005-05-06 | Martin Nilsson | | push_empty_string();
|
73b07a | 2001-06-21 | Per Hedbor | | return;
|
a3c433 | 2001-06-20 | Per Hedbor | | }
|
edb084 | 2001-07-11 | Martin Stjernholm | | /*! @decl int _sizeof()
*!
*! Returns the size of the buffer.
*/
|
41730d | 2001-07-26 | Martin Nilsson | | PIKEFUN int _sizeof()
|
edb084 | 2001-07-11 | Martin Stjernholm | | {
struct Buffer_struct *str = THIS;
RETURN str->str.s ? str->str.s->len : 0;
}
|
a3c433 | 2001-06-20 | Per Hedbor | | INIT
{
struct Buffer_struct *str = THIS;
|
73b07a | 2001-06-21 | Per Hedbor | | MEMSET( str, 0, sizeof( *str ) );
|
a3c433 | 2001-06-20 | Per Hedbor | | }
EXIT
{
struct Buffer_struct *str = THIS;
|
73b07a | 2001-06-21 | Per Hedbor | | if( str->str.s )
free_string_builder( &str->str );
|
a3c433 | 2001-06-20 | Per Hedbor | | }
}
|
41730d | 2001-07-26 | Martin Nilsson | | /*! @endclass
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | */
/*! @class Replace
|
c5e2a4 | 2004-04-30 | Martin Nilsson | | *!
*! This is a "compiled" version of the @[replace] function applied on
*! a string, with more than one replace string. The replace strings
*! are given to the create method as a @i{from@} and @i{to@} array
*! and are then analyzed. The @expr{`()@} is then called with a
*! string and the replace rules in the Replace object will be
*! applied. The Replace object is used internally by the Pike
*! optimizer and need not be used manually.
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | */
PIKECLASS multi_string_replace
{
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | CVAR struct replace_many_context ctx;
|
453056 | 2006-03-11 | Henrik Grubbström (Grubba) | | /* NOTE: from and to are only kept for _encode()'s use. */
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | CVAR struct array *from;
CVAR struct array *to;
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | |
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | /*! @decl void create(array(string)|mapping(string:string)|void from, @
*! array(string)|string|void to)
|
18c225 | 2003-04-10 | Martin Nilsson | | */
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | PIKEFUN void create(array(string)|mapping(string:string)|void from_arg,
array(string)|string|void to_arg)
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | {
int i;
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | |
if (THIS->from) free_array(THIS->from);
if (THIS->to) free_array(THIS->to);
if (THIS->ctx.v) free_replace_many_context(&THIS->ctx);
|
f01b12 | 2001-07-01 | Henrik Grubbström (Grubba) | | if (!args) {
push_int(0);
return;
}
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | if (from_arg && from_arg->type == T_MAPPING) {
if (to_arg) {
Pike_error("Bad number of arguments to create().\n");
}
THIS->from = mapping_indices(from_arg->u.mapping);
THIS->to = mapping_values(from_arg->u.mapping);
pop_n_elems(args);
args = 0;
} else {
/* FIXME: Why is from declared |void, when it isn't allowed
* to be void?
* /grubba 2004-09-02
*/
if (!from_arg || !to_arg) {
Pike_error("Bad number of arguments to create().\n");
}
pop_n_elems(args-2);
args = 2;
if (from_arg->type != T_ARRAY) {
SIMPLE_BAD_ARG_ERROR("Replace", 1,
"array(string)|mapping(string:string)");
}
if (to_arg->type == T_STRING) {
push_int(from_arg->u.array->size);
stack_swap();
f_allocate(2);
}
if (to_arg->type != T_ARRAY) {
SIMPLE_BAD_ARG_ERROR("Replace", 2, "array(string)|string");
}
if (from_arg->u.array->size != to_arg->u.array->size) {
Pike_error("Replace must have equal-sized from and to arrays.\n");
}
add_ref(THIS->from = from_arg->u.array);
add_ref(THIS->to = to_arg->u.array);
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | }
|
c5e2a4 | 2004-04-30 | Martin Nilsson | |
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | if (!THIS->from->size) {
|
d5c9e2 | 2005-01-07 | Henrik Grubbström (Grubba) | | /* Enter no-op mode. */
pop_n_elems(args);
push_int(0);
return;
}
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | if( (THIS->from->type_field & ~BIT_STRING) &&
(array_fix_type_field(THIS->from) & ~BIT_STRING) )
SIMPLE_BAD_ARG_ERROR("Replace", 1,
"array(string)|mapping(string:string)");
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | |
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | if( (THIS->to->type_field & ~BIT_STRING) &&
(array_fix_type_field(THIS->to) & ~BIT_STRING) )
SIMPLE_BAD_ARG_ERROR("Replace", 2, "array(string)|string");
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | |
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | compile_replace_many(&THIS->ctx, THIS->from, THIS->to, 1);
|
1922b1 | 2004-04-30 | Martin Nilsson | |
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | pop_n_elems(args);
push_int(0);
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | }
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl string `()(string str)
*/
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | PIKEFUN string `()(string str)
{
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | if (!THIS->ctx.v) {
|
453056 | 2006-03-11 | Henrik Grubbström (Grubba) | | /* The result is already on the stack in the correct place... */
return;
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | }
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | RETURN execute_replace_many(&THIS->ctx, str);
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | }
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | /*! @decl array(array(string)) _encode()
|
18c225 | 2003-04-10 | Martin Nilsson | | */
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | PIKEFUN array(array(string)) _encode()
|
9f9157 | 2001-07-01 | Henrik Grubbström (Grubba) | | {
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | if (THIS->from) {
ref_push_array(THIS->from);
} else {
push_undefined();
|
9f9157 | 2001-07-01 | Henrik Grubbström (Grubba) | | }
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | if (THIS->to) {
ref_push_array(THIS->to);
} else {
push_undefined();
|
9f9157 | 2001-07-01 | Henrik Grubbström (Grubba) | | }
f_aggregate(2);
}
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl void _decode(array(array(string)) encoded)
*/
|
9f9157 | 2001-07-01 | Henrik Grubbström (Grubba) | | PIKEFUN void _decode(array(array(string)) encoded)
{
INT32 i;
for (i=0; i < encoded->size; i++) {
push_svalue(encoded->item + i);
stack_swap();
}
pop_stack();
f_multi_string_replace_create(i);
}
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | INIT
{
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | MEMSET(&THIS->ctx, 0, sizeof(struct replace_many_context));
THIS->from = NULL;
THIS->to = NULL;
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | }
EXIT
{
|
6f6d2b | 2006-03-11 | Henrik Grubbström (Grubba) | | if (THIS->from) free_array(THIS->from);
if (THIS->to) free_array(THIS->to);
free_replace_many_context(&THIS->ctx);
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | }
}
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | /*! @endclass
*/
/*! @class SingleReplace
|
c5e2a4 | 2004-04-30 | Martin Nilsson | | *!
*! This is a "compiled" version of the @[replace] function applied on
*! a string, with just one replace string. The replace strings are
*! given to the create method as a @i{from@} and @i{tom@} string and
*! are then analyzed. The @expr{`()@} is then called with a string
*! and the replace rule in the Replace object will be applied. The
*! Replace object is used internally by the Pike optimizer and need
*! not be used manually.
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | */
PIKECLASS single_string_replace
{
CVAR SearchMojt mojt;
CVAR struct pike_string *del;
CVAR struct pike_string *to;
INIT
{
THIS->mojt.vtab = NULL;
THIS->mojt.data = NULL;
THIS->del = NULL;
THIS->to = NULL;
}
EXIT
{
if (THIS->mojt.vtab) {
THIS->mojt.vtab->freeme(THIS->mojt.data);
THIS->mojt.vtab = NULL;
THIS->mojt.data = NULL;
}
if (THIS->del) {
free_string(THIS->del);
THIS->del = NULL;
}
if (THIS->to) {
free_string(THIS->to);
THIS->to = NULL;
}
}
|
c5e2a4 | 2004-04-30 | Martin Nilsson | | /*! @decl void create(string|void from, string|void to)
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | *!
*! @note
*! May be called with either zero or two arguments.
|
18c225 | 2003-04-10 | Martin Nilsson | | */
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | PIKEFUN void create(string|void del, string|void to)
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | {
/* Clean up... */
exit_single_string_replace_struct();
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | if (!del) return;
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | |
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | if (!to) {
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | SIMPLE_BAD_ARG_ERROR("String.SingleReplace->create", 2, "string");
}
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | if (del == to) {
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | /* No-op... */
return;
}
|
fe2144 | 2004-09-02 | Henrik Grubbström (Grubba) | | copy_shared_string(THIS->del, del);
copy_shared_string(THIS->to, to);
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | |
if (del->len) {
|
50edc8 | 2001-07-13 | Henrik Grubbström (Grubba) | | THIS->mojt = simple_compile_memsearcher(del);
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | }
}
/*** replace function ***/
typedef char *(* replace_searchfunc)(void *,void *,size_t);
|
18c225 | 2003-04-10 | Martin Nilsson | |
/*! @decl string `()(string str)
*/
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | PIKEFUN string `()(string str)
{
int shift;
struct pike_string *del = THIS->del;
struct pike_string *to = THIS->to;
struct pike_string *ret = NULL;
if (!str->len || !del || !to) {
/* The result is already on the stack in the correct place... */
return;
}
shift = MAXIMUM(str->size_shift, to->size_shift);
if (!del->len) {
int e, pos;
ret = begin_wide_shared_string(str->len + to->len * (str->len-1),
shift);
low_set_index(ret, 0, index_shared_string(str, 0));
for(pos=e=1;e<str->len;e++)
{
pike_string_cpy(MKPCHARP_STR_OFF(ret,pos), to);
pos+=to->len;
low_set_index(ret,pos++,index_shared_string(str,e));
}
} else {
char *s, *end, *tmp;
replace_searchfunc f = (replace_searchfunc)0;
void *mojt_data = THIS->mojt.data;
PCHARP r;
end = str->str+(str->len<<str->size_shift);
switch(str->size_shift)
{
case 0: f = (replace_searchfunc)THIS->mojt.vtab->func0; break;
case 1: f = (replace_searchfunc)THIS->mojt.vtab->func1; break;
case 2: f = (replace_searchfunc)THIS->mojt.vtab->func2; break;
#ifdef PIKE_DEBUG
|
5aad93 | 2002-08-15 | Marcus Comstedt | | default: Pike_fatal("Illegal shift.\n");
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | #endif
}
if(del->len == to->len)
{
ret = begin_wide_shared_string(str->len, shift);
} else {
INT32 delimiters = 0;
s = str->str;
while((s = f(mojt_data, s, (end-s)>>str->size_shift)))
{
delimiters++;
s += del->len << str->size_shift;
}
if (!delimiters) {
/* The result is already on the stack in the correct place... */
return;
}
ret = begin_wide_shared_string(str->len +
(to->len-del->len)*delimiters, shift);
}
s = str->str;
r = MKPCHARP_STR(ret);
while((tmp = f(mojt_data, s, (end-s)>>str->size_shift)))
{
#ifdef PIKE_DEBUG
if(tmp + (del->len << str->size_shift) > end)
|
362d30 | 2004-03-08 | Martin Nilsson | | Pike_fatal("SearchMojt found a match beyond end of string!\n");
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | #endif
generic_memcpy(r,MKPCHARP(s,str->size_shift),(tmp-s)>>str->size_shift);
INC_PCHARP(r,(tmp-s)>>str->size_shift);
pike_string_cpy(r,to);
INC_PCHARP(r,to->len);
s=tmp+(del->len << str->size_shift);
}
generic_memcpy(r,MKPCHARP(s,str->size_shift),(end-s)>>str->size_shift);
}
RETURN end_shared_string(ret);
}
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl array(string) _encode()
*/
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | PIKEFUN array(string) _encode()
{
if (THIS->del) {
ref_push_string(THIS->del);
ref_push_string(THIS->to);
f_aggregate(2);
} else {
push_int(0);
}
}
|
18c225 | 2003-04-10 | Martin Nilsson | | /*! @decl void _decode(array(string)|int(0..0) encoded)
*/
|
0c4ad0 | 2001-07-05 | Henrik Grubbström (Grubba) | | PIKEFUN void _decode(array(string)|int(0..0) encoded_)
{
INT32 i = 0;
if (encoded_->type == PIKE_T_ARRAY) {
struct array *encoded = encoded_->u.array;
for (i=0; i < encoded->size; i++) {
push_svalue(encoded->item + i);
stack_swap();
}
}
pop_stack();
f_single_string_replace_create(i);
}
}
|
19f767 | 2003-02-18 | Marcus Comstedt | | /*! @endclass
*/
/*! @class Bootstring
|
3715ee | 2003-02-19 | Marcus Comstedt | | *!
*! This class implements the "Bootstring" string transcoder described in
|
abf31d | 2003-09-11 | Marcus Comstedt | | *! @url{ftp://ftp.rfc-editor.org/in-notes/rfc3492.txt@}.
|
19f767 | 2003-02-18 | Marcus Comstedt | | */
PIKECLASS bootstring
{
CVAR INT_TYPE base, tmin, tmax, skew, damp;
CVAR INT_TYPE initial_bias, initial_n;
CVAR p_wchar2 delim;
|
0b775e | 2003-02-19 | Marcus Comstedt | | PIKEVAR string digits flags ID_STATIC|ID_PRIVATE;
|
19f767 | 2003-02-18 | Marcus Comstedt | |
static INT_TYPE bootstring_cp_to_digit(p_wchar2 ch)
{
ptrdiff_t digit = THIS->digits->len;
PCHARP digits = MKPCHARP_STR( THIS->digits );
while (digit>=0)
if (INDEX_PCHARP( digits, digit ) == ch)
return digit;
else
--digit;
return -1;
}
static INT_TYPE bootstring_adapt(INT_TYPE delta, INT_TYPE numpoints,
int firsttime)
{
struct bootstring_struct *bs = THIS;
INT_TYPE k = 0, b = bs->base;
INT_TYPE a = b - bs->tmin;
INT_TYPE limit = (a * bs->tmax) >> 1;
if (firsttime)
delta /= bs->damp;
else
delta >>= 1;
delta += delta / numpoints;
while (delta > limit) {
delta /= a;
k += b;
}
return k + (a + 1)*delta / (delta + bs->skew);
}
|
3715ee | 2003-02-19 | Marcus Comstedt | | /*! @decl string decode(string s)
*!
*! Decodes a Bootstring encoded string of "basic" code points back
*! to the original string space.
*/
|
19f767 | 2003-02-18 | Marcus Comstedt | | PIKEFUN string decode(string s)
{
struct bootstring_struct *bs = THIS;
INT_TYPE n = bs->initial_n;
INT_TYPE i = 0;
INT_TYPE bias = bs->initial_bias;
ptrdiff_t pos, input_left;
PCHARP input;
struct string_builder output;
init_string_builder( &output,0 );
input = MKPCHARP_STR( s );
input_left = s->len;
for (pos = input_left-1; pos > 0; --pos)
if (INDEX_PCHARP( input, pos ) == bs->delim) {
string_builder_append( &output, input, pos );
INC_PCHARP( input, pos+1 );
input_left -= pos+1;
break;
}
while (input_left > 0) {
INT_TYPE oldi = i;
INT_TYPE w = 1;
INT_TYPE k;
for (k=bs->base; ; k+=bs->base) {
INT_TYPE digit, t;
if (input_left < 1 ||
(digit = bootstring_cp_to_digit( EXTRACT_PCHARP( input ) )) < 0) {
free_string_builder( &output );
Pike_error( "Invalid variable-length integer.\n" );
}
INC_PCHARP( input, 1 );
--input_left;
i += digit * w; /* fail on overflow... */
if (k <= bias + bs->tmin)
t = bs->tmin;
else if (k >= bias + bs->tmax)
t = bs->tmax;
else
t = k - bias;
if (digit < t) break;
w *= (bs->base - t);
}
bias = bootstring_adapt( i - oldi, output.s->len+1, !oldi );
n += i / (output.s->len+1);
i %= output.s->len+1;
string_builder_putchar( &output, n );
if (i != output.s->len-1)
switch (output.s->size_shift) {
case 0:
{
p_wchar0 *s = STR0(output.s);
INT_TYPE p = output.s->len;
while (--p>i)
s[p] = s[p-1];
s[p] = n;
}
break;
case 1:
{
p_wchar1 *s = STR1(output.s);
INT_TYPE p = output.s->len;
while (--p>i)
s[p] = s[p-1];
s[p] = n;
}
break;
case 2:
{
p_wchar2 *s = STR2(output.s);
INT_TYPE p = output.s->len;
while (--p>i)
s[p] = s[p-1];
s[p] = n;
}
break;
default:
Pike_fatal("Illegal shift size!\n");
}
i++;
}
RETURN finish_string_builder( &output );
}
|
3715ee | 2003-02-19 | Marcus Comstedt | | /*! @decl string encode(string s)
*!
*! Encodes a string using Bootstring encoding into a string constisting
*! only of "basic" code points (< initial_n).
*/
|
19f767 | 2003-02-18 | Marcus Comstedt | | PIKEFUN string encode(string s)
{
struct bootstring_struct *bs = THIS;
INT_TYPE n = bs->initial_n;
INT_TYPE delta = 0;
INT_TYPE bias = bs->initial_bias;
INT_TYPE c, h, b = 0;
ptrdiff_t pos, input_left;
PCHARP input;
struct string_builder output;
init_string_builder( &output,0 );
input = MKPCHARP_STR( s );
input_left = s->len;
for (pos=0; pos<input_left; pos++)
if ((c = INDEX_PCHARP( input, pos )) < n) {
string_builder_putchar( &output, c );
b++;
}
if ((h = b))
string_builder_putchar( &output, bs->delim );
while (h < input_left) {
INT_TYPE m = -1;
for (pos=0; pos<input_left; pos++)
if ((c = INDEX_PCHARP( input, pos )) >= n &&
(m < 0 || c < m))
m = c;
delta = delta + (m - n) * (h + 1); /* fail on overflow... */
n = m;
for (pos=0; pos<input_left; pos++)
if ((c = INDEX_PCHARP( input, pos )) < n)
delta++;
else if (c == n) {
INT_TYPE k, q = delta;
for (k=bs->base; ; k+=bs->base) {
INT_TYPE t, bt;
if (k <= bias + bs->tmin)
t = bs->tmin;
else if(k >= bias + bs->tmax)
t = bs->tmax;
else
t = k-bias;
if (q < t)
break;
bt = bs->base - t;
string_builder_putchar( &output,
index_shared_string( bs->digits,
t + (q-t)%bt ) );
q = (q-t) / bt;
}
string_builder_putchar( &output,
index_shared_string( bs->digits, q ) );
bias = bootstring_adapt( delta, h+1, h==b );
delta = 0;
h++;
}
delta++;
n++;
}
RETURN finish_string_builder( &output );
}
|
3715ee | 2003-02-19 | Marcus Comstedt | | /*! @decl void create(int base, int tmin, int tmax, int skew, @
*! int damp, int initial_bias, int initial_n, @
*! int delim, string digits)
*!
*! Creates a Bootstring transcoder instance using the specified parameters.
*!
*! @param base
*! The base used by the variable-length integers.
*! @param tmin
*! The minimum threshold digit value for the variable-length integers.
*! Must be >=0 and <= tmax.
*! @param tmax
*! The maximum threshold digit value for the variable-length integers.
*! Must be <= base-1.
*! @param skew
*! The skew term for the bias adapation. Must be >= 1.
*! @param damp
|
1ae3d6 | 2003-02-19 | Henrik Grubbström (Grubba) | | *! The damping factor for the bias adaption. Must be >= 2.
|
3715ee | 2003-02-19 | Marcus Comstedt | | *! @param initial_bias
*! The initial bias for the variable-length integer thresholding.
*! initial_bias % base must be <= base - tmin.
*! @param initial_n
*! The first code point outside the "basic" set of code points.
*! @param delim
*! The "basic" code point used as the delimiter.
*! @param digits
*! The "basic" code points used as digits. The length of the string
*! should be the same as the base parameter.
*/
|
19f767 | 2003-02-18 | Marcus Comstedt | | PIKEFUN void create( int base, int tmin, int tmax,
int skew, int damp,
int initial_bias, int initial_n,
int delim, string digits )
|
3715ee | 2003-02-19 | Marcus Comstedt | | flags ID_STATIC;
|
19f767 | 2003-02-18 | Marcus Comstedt | | {
struct bootstring_struct *bs = THIS;
|
3715ee | 2003-02-19 | Marcus Comstedt | | if (base<2)
Pike_error("Bogus base\n");
if (tmin<0 || tmax<tmin || base-1<tmax)
Pike_error("Parameters violate 0 <= tmin <= tmax <= base-1\n");
if (skew < 1)
Pike_error("Parameters violate skew >= 1\n");
if (damp < 2)
Pike_error("Parameters violate damp >= 2\n");
if (initial_bias%base > base-tmin)
Pike_error("Parameters violate initial_bias%%base <= base-tmin\n");
if (digits->len != base)
Pike_error("Length of digits string does not match base.\n");
|
19f767 | 2003-02-18 | Marcus Comstedt | | bs->base = base; bs->tmin = tmin; bs->tmax = tmax;
bs->skew = skew; bs->damp = damp;
bs->initial_bias = initial_bias; bs->initial_n = initial_n;
bs->delim = delim;
if (bs->digits) {
free_string( bs->digits );
bs->digits = NULL;
}
copy_shared_string( bs->digits, digits );
}
}
|
da9069 | 2002-11-26 | Henrik Grubbström (Grubba) | | /*! @endclass
*/
/*! @endmodule
*/
/*! @module System
*/
/*! @class Time
*!
*! The current time as a structure containing a sec and a usec
*! member.
*/
PIKECLASS Time
{
CVAR int hard_update;
/*! @decl int sec;
*! @decl int usec;
*!
*! The number of seconds and microseconds since the epoch and the
*! last whole second, respectively. (See also @[predef::time()])
*!
*! Please note that these variables will continually update when
*! they are requested, there is no need to create new Time()
*! objects.
*/
/*! @decl int usec_full;
*!
*! The number of microseconds since the epoch. Please note that
*! pike has to have been compiled with bignum support for this
*! variable to contain sensible values.
*/
PIKEFUN int `->( string x )
{
extern struct timeval current_time;
struct pike_string *usec;
struct pike_string *sec;
|
51adb8 | 2003-01-12 | Martin Stjernholm | |
|
de56ec | 2003-02-08 | Martin Stjernholm | | MAKE_CONST_STRING( sec, "sec" );
MAKE_CONST_STRING( usec, "usec" );
|
da9069 | 2002-11-26 | Henrik Grubbström (Grubba) | |
if( !x )
RETURN 0;
if( THIS->hard_update )
GETTIMEOFDAY( ¤t_time );
if( x == usec )
RETURN current_time.tv_usec;
if( x == sec )
RETURN current_time.tv_sec;
#ifdef AUTO_BIGNUM
pop_stack();
push_int( current_time.tv_sec );
push_int( 1000000 );
f_multiply( 2 );
push_int( current_time.tv_usec );
f_add( 2 );
return;
#else
RETURN (current_time.tv_sec * 1000000 + current_time.tv_usec);
#endif
}
PIKEFUN int `[]( string x )
{
f_Time_cq__backtick_2D_3E( args );
}
/*! @decl static void create( int fast );
*!
*! If fast is true, do not request a new time from the system,
*! instead use the global current time variable.
*!
*! This will only work in callbacks, but can save significant amounts
*! of CPU.
*/
PIKEFUN void create( int|void fast )
{
THIS->hard_update = !fast;
}
}
/*! @endclass
*/
/*! @class Timer
*/
PIKECLASS Timer
{
CVAR struct timeval last_time;
CVAR int hard_update;
/*! @decl float peek()
*! Return the time in seconds since the last time @[get] was called.
*/
PIKEFUN float peek( )
{
extern struct timeval current_time;
FLOAT_TYPE res;
if( THIS->hard_update )
GETTIMEOFDAY( ¤t_time );
res = current_time.tv_sec-THIS->last_time.tv_sec +
(current_time.tv_usec-THIS->last_time.tv_usec)/1000000.0;
RETURN res;
}
/*! @decl float get()
*! Return the time in seconds since the last time get was called.
*! The first time this method is called the time since the object
*! was created is returned instead.
*/
PIKEFUN float get( )
{
extern struct timeval current_time;
f_Timer_peek( 0 );
THIS->last_time = current_time;
return;
}
/*! @decl static void create( int|void fast )
*! Create a new timer object. The timer keeps track of relative time
*! with sub-second precision.
*!
*! If fast is specified, the timer will not do system calls to get
*! the current time but instead use the one maintained by pike. This
*! will result in faster but somewhat more inexact timekeeping.
*! Also, if your program never utilizes the pike event loop the pike
*! maintained current time never change.
*/
PIKEFUN void create( int|void fast )
{
extern struct timeval current_time;
THIS->hard_update = !fast;
if( THIS->hard_update )
GETTIMEOFDAY( ¤t_time );
THIS->last_time = current_time;
}
}
|
fed7de | 2001-06-28 | Henrik Grubbström (Grubba) | | /*! @endclass
*/
/*! @endmodule
*/
|
a3c433 | 2001-06-20 | Per Hedbor | |
|
8bef1b | 2001-09-27 | Fredrik Hübinette (Hubbe) | |
PIKECLASS automap_marker
{
PIKEVAR array arg;
PIKEVAR int depth;
PIKEFUN void create(array a, int d)
{
if(THIS->arg) free_array(THIS->arg);
add_ref(THIS->arg=a);
THIS->depth=d;
}
PIKEFUN string _sprintf(int mode, mapping flags)
{
pop_n_elems(args);
|
e6dbc2 | 2002-11-29 | Marcus Comstedt | | if (mode != 'O') {
push_undefined ();
return;
}
|
8bef1b | 2001-09-27 | Fredrik Hübinette (Hubbe) | | push_text("%O%*'[*]'n");
if(THIS->arg)
ref_push_array(THIS->arg);
else
push_int(0);
push_int(THIS->depth*3);
f_sprintf(3);
}
}
static void low_automap(int d,
int depth,
struct svalue *fun,
struct svalue *real_args,
INT32 args)
{
INT32 x,e,tmp,size=0x7fffffff;
struct svalue *tmpargs=Pike_sp - args;
struct array *ret;
|
2523ce | 2003-04-28 | Martin Stjernholm | | TYPE_FIELD types;
|
8bef1b | 2001-09-27 | Fredrik Hübinette (Hubbe) | |
for(e=0;e<args;e++)
{
if(real_args[e].type==T_OBJECT &&
real_args[e].u.object->prog == automap_marker_program &&
OBJ2_AUTOMAP_MARKER(real_args[e].u.object)->depth >= d)
{
if(tmpargs[e].type != T_ARRAY)
|
a241e0 | 2001-09-27 | Fredrik Hübinette (Hubbe) | | index_error("__automap__",
Pike_sp-args,
args,
tmpargs,
NULL,
"Automap on non-array.\n");
|
8bef1b | 2001-09-27 | Fredrik Hübinette (Hubbe) | | tmp=tmpargs[e].u.array->size;
if(tmp < size)
size=tmp;
}
}
#ifdef PIKE_DEBUG
if(size == 0x7fffffff)
|
5aad93 | 2002-08-15 | Marcus Comstedt | | Pike_fatal("No automap markers found in low_automap\n");
|
8bef1b | 2001-09-27 | Fredrik Hübinette (Hubbe) | | #endif
push_array(ret=allocate_array(size));
|
2523ce | 2003-04-28 | Martin Stjernholm | | types = 0;
|
8bef1b | 2001-09-27 | Fredrik Hübinette (Hubbe) | |
for(x=0;x<size;x++)
{
for(e=0;e<args;e++)
{
if(real_args[e].type==T_OBJECT &&
real_args[e].u.object->prog == automap_marker_program &&
OBJ2_AUTOMAP_MARKER(real_args[e].u.object)->depth >= d)
{
#ifdef PIKE_DEBUG
if(x >= tmpargs[e].u.array->size)
|
5aad93 | 2002-08-15 | Marcus Comstedt | | Pike_fatal("low_automap failed to determine size!\n");
|
8bef1b | 2001-09-27 | Fredrik Hübinette (Hubbe) | | #endif
push_svalue(ITEM(tmpargs[e].u.array)+x);
}else{
push_svalue(tmpargs+e);
}
}
if(d == depth)
apply_svalue(fun,args);
else
low_automap(d+1,depth,fun,real_args,args);
|
2523ce | 2003-04-28 | Martin Stjernholm | | stack_pop_to_no_free (ITEM(ret) + x);
types |= 1 << ITEM(ret)[x].type;
|
8bef1b | 2001-09-27 | Fredrik Hübinette (Hubbe) | | }
|
2523ce | 2003-04-28 | Martin Stjernholm | | ret->type_field = types;
|
8bef1b | 2001-09-27 | Fredrik Hübinette (Hubbe) | | stack_unlink(args);
}
PIKEFUN array __automap__(mixed fun, mixed ... tmpargs)
efun;
{
int e,depth=-1;
check_stack(args);
for(e=0;e<args-1;e++)
{
if(tmpargs[e].type==T_OBJECT &&
tmpargs[e].u.object->prog == automap_marker_program)
{
int tmp=OBJ2_AUTOMAP_MARKER(tmpargs[e].u.object)->depth;
if(tmp > depth) depth=tmp;
ref_push_array(OBJ2_AUTOMAP_MARKER(tmpargs[e].u.object)->arg);
}else{
push_svalue(tmpargs+e);
}
}
check_stack(depth * (args+1));
low_automap(1,depth,fun,tmpargs,args-1);
stack_unlink(args);
}
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | /* Linked list stuff.
*/
#undef INIT_BLOCK
#define INIT_BLOCK(NODE) do { \
(NODE)->next = (NODE)->prev = NULL; \
(NODE)->refs = 1; \
(NODE)->val.type = T_INT; \
(NODE)->val.subtype = NUMBER_UNDEFINED; \
(NODE)->val.u.integer = 0; \
} while(0)
#undef EXIT_BLOCK
#define EXIT_BLOCK(NODE) do { \
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | if ((NODE)->prev) { \
free_list_node((NODE)->prev); \
} \
if ((NODE)->next) { \
free_list_node((NODE)->next); \
} \
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | free_svalue(&(NODE)->val); \
} while(0)
BLOCK_ALLOC_FILL_PAGES(list_node, 4);
PMOD_EXPORT void free_list_node(struct list_node *node)
{
if (!sub_ref(node)) {
really_free_list_node(node);
}
}
PMOD_EXPORT void unlink_list_node(struct list_node *n)
{
#ifdef PIKE_DEBUG
if (!n) {
Pike_fatal("Unlinking NULL node.\n");
}
if (!n->next || !n->prev) {
Pike_fatal("Unlinking unlinked node.\n");
}
#endif /* PIKE_DEBUG */
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | if (n->prev->next == n) {
#ifdef PIKE_DEBUG
if (n->next->prev != n) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
n->prev->next = n->next;
n->next->prev = n->prev;
n->next = n->prev = NULL;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | |
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | /* We've lost two references. */
free_list_node(n);
free_list_node(n);
} else {
#ifdef PIKE_DEBUG
if (n->next->prev == n) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
/* The node is already detached. */
n->next = n->prev = NULL;
}
}
PMOD_EXPORT void detach_list_node(struct list_node *n)
{
#ifdef PIKE_DEBUG
if (!n) {
Pike_fatal("Detaching NULL node.\n");
}
if (!n->next || !n->prev) {
Pike_fatal("Detaching unlinked node.\n");
}
#endif /* PIKE_DEBUG */
if (n->prev->next == n) {
#ifdef PIKE_DEBUG
if (n->next->prev != n) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
n->prev->next = n->next;
n->next->prev = n->prev;
add_ref(n->next);
add_ref(n->prev);
/* We've lost two references. */
free_list_node(n);
free_list_node(n);
#ifdef PIKE_DEBUG
} else if (n->next->prev == n) {
Pike_fatal("Partially detached node.\n");
#endif /* PIKE_DEBUG */
}
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | }
PMOD_EXPORT void prepend_list_node(struct list_node *node,
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | struct list_node *new_node)
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | {
#ifdef PIKE_DEBUG
if (!node) {
Pike_fatal("No node to prepend.\n");
}
if (!node->prev) {
Pike_fatal("Prepending unhooked node.\n");
}
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | if (!new_node) {
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | Pike_fatal("Prepending NULL node.\n");
}
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | if (new_node->next || new_node->prev) {
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | Pike_fatal("Prepending hooked node.\n");
}
#endif /* PIKE_DEBUG */
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | new_node->next = node;
new_node->prev = node->prev;
new_node->prev->next = node->prev = new_node;
add_ref(new_node);
add_ref(new_node);
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | }
PMOD_EXPORT void append_list_node(struct list_node *node,
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | struct list_node *new_node)
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | {
#ifdef PIKE_DEBUG
if (!node) {
Pike_fatal("No node to append.\n");
}
if (!node->next) {
Pike_fatal("Appending unhooked node.\n");
}
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | if (!new_node) {
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | Pike_fatal("Appending NULL node.\n");
}
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | if (new_node->next || new_node->prev) {
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | Pike_fatal("Appending hooked node.\n");
}
#endif /* PIKE_DEBUG */
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | new_node->next = node->next;
new_node->prev = node;
new_node->next->prev = node->next = new_node;
add_ref(new_node);
add_ref(new_node);
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | }
|
83c38b | 2004-09-14 | Henrik Grubbström (Grubba) | | /*! @module ADT
*/
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | /*! @class List
*!
*! Linked list of values.
*/
PIKECLASS List
{
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | CVAR struct list_node *head;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | CVAR INT32 head_sentinel_refs;
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | CVAR struct list_node *tail; /* Always NULL. */
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | CVAR INT32 tail_sentinel_refs;
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | CVAR struct list_node *tail_pred;
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | CVAR INT32 num_elems;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | |
#define HEAD_SENTINEL(this) ((struct list_node *)(&this->head))
#define TAIL_SENTINEL(this) ((struct list_node *)(&this->tail))
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | /* Sentinel overlap description:
*
* List Head sentinel Tail sentinel
* head next
* head_sentinel_refs refs
* tail prev next
* tail_sentinel_refs refs
* tail_pred prev
*/
|
d3438c | 2004-09-12 | Henrik Grubbström (Grubba) | | /* Suggestions for future functionality:
*
|
0319bd | 2004-09-14 | Henrik Grubbström (Grubba) | | * o Pop tail
|
d3438c | 2004-09-12 | Henrik Grubbström (Grubba) | | * o Join
* o Copy segment
* o Detach segment (requires new iterator implementation)
* o Iterator copy
|
0319bd | 2004-09-14 | Henrik Grubbström (Grubba) | | * o _equal() for iterators and lists.
* o _values(), _search(), cast()
* o _sizeof()?, _indices()??
|
d3438c | 2004-09-12 | Henrik Grubbström (Grubba) | | * o Support for reverse(), filter() and map().
* o Initialization from array.
*/
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | INIT
{
THIS->tail = NULL;
THIS->head = TAIL_SENTINEL(THIS);
THIS->tail_pred = HEAD_SENTINEL(THIS);
|
5d32cf | 2004-09-15 | Henrik Grubbström (Grubba) | | THIS->head_sentinel_refs = THIS->tail_sentinel_refs = 2;
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | THIS->num_elems = 0;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | }
EXIT
{
struct list_node *node = THIS->head;
struct list_node *next;
while ((next = node->next)) {
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | #ifdef PIKE_DEBUG
if (node->refs != 2) {
Pike_fatal("Unexpected number of references for node: %d\n",
node->refs);
}
#endif /* PIKE_DEBUG */
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | unlink_list_node(node);
node = next;
}
}
|
7468fd | 2004-09-14 | Henrik Grubbström (Grubba) | | /* These two functions perform the same thing,
* but are optimized to minimize recursion.
*/
static void gc_check_list_node_backward(struct list_node *node,
const char *msg);
static void gc_check_list_node_forward(struct list_node *node,
const char *msg)
{
while (node && !debug_gc_check(&node->refs, msg)) {
if (node->next)
debug_gc_check_svalues(&node->val, 1, " as a list node value");
gc_check_list_node_backward(node->prev, msg);
node = node->next;
}
}
static void gc_check_list_node_backward(struct list_node *node,
const char *msg)
{
while (node && !debug_gc_check(&node->refs, msg)) {
if (node->prev)
debug_gc_check_svalues(&node->val, 1, " as a list node value");
gc_check_list_node_forward(node->next, msg);
node = node->prev;
}
}
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | /* Called at gc_check time. */
GC_CHECK
{
|
7468fd | 2004-09-14 | Henrik Grubbström (Grubba) | | gc_check_list_node_backward(HEAD_SENTINEL(THIS), " as a list node");
|
5d32cf | 2004-09-15 | Henrik Grubbström (Grubba) | | gc_check_list_node_forward(TAIL_SENTINEL(THIS), " as a list node");
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | }
/* Called at gc_mark time */
GC_RECURSE
{
struct list_node *node = THIS->head;
struct list_node *next;
while ((next = node->next)) {
gc_recurse_svalues(&node->val, 1);
node = next;
}
}
|
0319bd | 2004-09-14 | Henrik Grubbström (Grubba) | | /*! @decl int(0..1) is_empty()
*!
*! Check if the list is empty.
*!
*! @returns
*! Returns @expr{1@} if the list is empty,
*! and @expr{0@} (zero) if there are elements in the list.
*/
PIKEFUN int(0..1) is_empty()
{
push_int(!THIS->head->next);
}
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | /*! @decl int(0..) _sizeof()
*!
*! Returns the number of elements in the list.
*/
PIKEFUN int(0..) _sizeof()
flags ID_STATIC;
{
push_int(THIS->num_elems);
}
|
2122b6 | 2004-10-28 | Henrik Grubbström (Grubba) | | /*! @decl string _sprintf(int c, mapping(string:mixed)|void attr)
*!
*! Describe the list.
*!
*! @seealso
*! @[sprintf()], @[lfun::_sprintf()]
*/
PIKEFUN string _sprintf(int c, mapping(string:mixed)|void attr)
flags ID_STATIC;
{
if (!THIS->num_elems) {
push_constant_text("ADT.List(/* empty */)");
} else if (c == 'O') {
struct list_node *node = THIS->head;
if (THIS->num_elems == 1) {
push_constant_text("ADT.List(/* 1 element */\n");
} else {
push_constant_text("ADT.List(/* %d elements */\n");
push_int(THIS->num_elems);
f_sprintf(2);
}
while (node->next) {
if (node->next->next) {
push_constant_text(" %O,\n");
} else {
push_constant_text(" %O\n");
}
push_svalue(&node->val);
f_sprintf(2);
node = node->next;
}
push_constant_text(")");
f_add(THIS->num_elems + 2);
} else {
if (THIS->num_elems == 1) {
push_constant_text("ADT.List(/* 1 element */)");
} else {
push_constant_text("ADT.List(/* %d elements */)");
push_int(THIS->num_elems);
f_sprintf(2);
}
}
stack_pop_n_elems_keep_top(args);
}
|
0319bd | 2004-09-14 | Henrik Grubbström (Grubba) | | /*! @decl mixed head()
*!
*! Get the element at the head of the list.
*!
*! @throws
*! Throws an error if the list is empty.
*!
*! @seealso
*! @[is_empty()], @[tail()], @[pop()]
*/
PIKEFUN mixed head()
{
if (THIS->head->next) {
push_svalue(&THIS->head->val);
} else {
Pike_error("Empty list.\n");
}
}
/*! @decl mixed tail()
*!
*! Get the element at the tail of the list.
*!
*! @throws
*! Throws an error if the list is empty.
*!
*! @seealso
*! @[is_empty()], @[head()], @[pop()]
*/
PIKEFUN mixed tail()
{
if (THIS->tail->prev) {
push_svalue(&THIS->tail->val);
} else {
Pike_error("Empty list.\n");
}
}
/*! @decl mixed pop()
*!
*! Pop the element at the head of the list from the list.
*!
*! @throws
*! Throws an error if the list is empty.
*!
*! @seealso
*! @[is_empty()], @[head()], @[tail()]
*/
PIKEFUN mixed pop()
{
if (THIS->head->next) {
push_svalue(&THIS->head->val);
if (THIS->head->refs == 2) {
unlink_list_node(THIS->head);
} else {
detach_list_node(THIS->head);
}
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | THIS->num_elems--;
|
0319bd | 2004-09-14 | Henrik Grubbström (Grubba) | | } else {
Pike_error("Empty list.\n");
}
}
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | /*! @decl void append(mixed ... values)
*!
*! Append @[values] to the end of the list.
*!
*! @seealso
*! @[insert()]
*/
PIKEFUN void append(mixed ... values)
{
struct list_node *node = TAIL_SENTINEL(THIS);
while (args--) {
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | struct list_node *new_node = alloc_list_node();
new_node->val = *(--Pike_sp);
prepend_list_node(node, new_node);
free_list_node(node = new_node);
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | THIS->num_elems++;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | }
push_int(0);
}
/*! @decl void insert(mixed ... values)
*!
*! Insert @[values] at the front of the list.
*!
*! @seealso
*! @[append()]
*/
PIKEFUN void insert(mixed ... values)
{
struct list_node *node = THIS->head;
while (args--) {
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | struct list_node *new_node = alloc_list_node();
new_node->val = *(--Pike_sp);
prepend_list_node(node, new_node);
free_list_node(node = new_node);
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | THIS->num_elems++;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | }
push_int(0);
}
/*! @decl void create(mixed ... values)
*!
*! Create a new @[List], and initialize it with @[values].
*!
*! @fixme
*! Ought to reset the @[List] if called multiple times.
*/
PIKEFUN void create(mixed ... values)
flags ID_STATIC;
{
/* FIXME: Reset the list? */
apply_current(f_List_append_fun_num, args);
}
/*! @class _get_iterator
*!
*! @[Iterator] that loops over the @[List].
*/
PIKECLASS _get_iterator
program_flags PROGRAM_USES_PARENT;
flags ID_STATIC;
{
CVAR struct list_node *cur;
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | CVAR INT32 ind; /* Not meaningful, but requred by the API. */
/* NOTE: cur may never refer to an unlinked node.
* cur may however refer to a detached node, or to sentinels.
*/
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | |
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | static struct List_struct *List__get_iterator_find_parent()
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | {
struct external_variable_context loc;
loc.o = Pike_fp->current_object;
loc.parent_identifier = Pike_fp->fun;
loc.inherit = INHERIT_FROM_INT(loc.o->prog, loc.parent_identifier);
find_external_context(&loc, 1);
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | return (struct List_struct *)(loc.o->storage +
loc.inherit->storage_offset);
}
INIT
{
add_ref(THIS->cur = List__get_iterator_find_parent()->head);
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | THIS->ind = 0;
}
EXIT
{
if (THIS->cur) {
free_list_node(THIS->cur);
THIS->cur = NULL;
}
}
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | /* Called at gc_check time. */
GC_CHECK
{
|
7468fd | 2004-09-14 | Henrik Grubbström (Grubba) | | gc_check_list_node_forward(THIS->cur, " held by an iterator");
}
/* These two functions perform the same thing,
* but are optimized to minimize recursion.
*/
static void gc_recurse_list_node_tree_backward(struct list_node *node,
struct list_node *back);
static void gc_recurse_list_node_tree_forward(struct list_node *node,
struct list_node *back)
{
if (!node || !node->next) return;
if (node->next->prev == node) {
/* List member. Recursed from the list recurse code. */
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | #ifdef PIKE_DEBUG
|
7468fd | 2004-09-14 | Henrik Grubbström (Grubba) | | if (node->prev->next != node) {
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
return;
}
#ifdef PIKE_DEBUG
|
7468fd | 2004-09-14 | Henrik Grubbström (Grubba) | | if (node->prev->next == node) {
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
|
7468fd | 2004-09-14 | Henrik Grubbström (Grubba) | | while (1) {
gc_recurse_svalues(&node->val, 1);
if (node->prev != back)
gc_recurse_list_node_tree_backward(node->prev, node->next);
back = node->prev;
node = node->next;
if (!node->next || (node->next->prev == node)) {
/* List member. Recursed from the list recurse code. */
#ifdef PIKE_DEBUG
if (node->prev->next != node) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
break;
}
#ifdef PIKE_DEBUG
if (node->prev->next == node) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
}
}
static void gc_recurse_list_node_tree_backward(struct list_node *node,
struct list_node *next)
{
if (!node || !node->prev) return;
if (node->prev->next == node) {
/* List member. Checked from the list check code. */
#ifdef PIKE_DEBUG
if (node->next->prev != node) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
return;
}
#ifdef PIKE_DEBUG
if (node->next->prev == node) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
while (1) {
gc_recurse_svalues(&node->val, 1);
if (node->next != next)
gc_recurse_list_node_tree_forward(node->next, node->prev);
next = node->next;
node = node->prev;
if (!node->prev || (node->prev->next == node)) {
/* List member. Recursed from the list recurse code. */
#ifdef PIKE_DEBUG
if (node->next->prev != node) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
break;
}
#ifdef PIKE_DEBUG
if (node->next->prev == node) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
}
}
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | |
/* Called at gc_mark time */
GC_RECURSE
{
if (!THIS->cur->next || !THIS->cur->prev) return;
if (THIS->cur->next->prev == THIS->cur) {
#ifdef PIKE_DEBUG
if (THIS->cur->prev->next != THIS->cur) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
return;
}
#ifdef PIKE_DEBUG
if (THIS->cur->prev->next == THIS->cur) {
Pike_fatal("Partially detached node.\n");
}
#endif /* PIKE_DEBUG */
/* Detached node. */
gc_recurse_svalues(&THIS->cur->val, 1);
|
7468fd | 2004-09-14 | Henrik Grubbström (Grubba) | | gc_recurse_list_node_tree_forward(THIS->cur->next, THIS->cur->prev);
gc_recurse_list_node_tree_backward(THIS->cur->next, THIS->cur->prev);
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | }
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | PIKEFUN int(0..1) `!()
flags ID_STATIC;
{
pop_n_elems(args);
push_int(!THIS->cur->next || !THIS->cur->prev);
}
PIKEFUN int(0..) index()
{
pop_n_elems(args);
if (THIS->cur->next && THIS->cur->prev) {
push_int(THIS->ind);
} else {
push_undefined();
}
}
/*! @decl mixed value()
*!
*! @returns
*! Returns the value at the current position.
*/
PIKEFUN mixed value()
{
pop_n_elems(args);
if (THIS->cur->next && THIS->cur->prev) {
push_svalue(&THIS->cur->val);
} else {
push_undefined();
}
}
/*! @decl int(0..1) first()
*!
*! Reset the iterator.
*!
*! @returns
*! Returns @expr{1@} if there are elements in the list,
*! and @expr{0@} (zero) if the list is empty.
*/
PIKEFUN int(0..1) first()
{
struct external_variable_context loc;
struct List_struct *parent;
pop_n_elems(args);
/* Find our parent. */
loc.o = Pike_fp->current_object;
loc.parent_identifier = Pike_fp->fun;
loc.inherit = INHERIT_FROM_INT(loc.o->prog, loc.parent_identifier);
find_external_context(&loc, 1);
parent = (struct List_struct *)(loc.o->storage +
loc.inherit->storage_offset);
free_list_node(THIS->cur);
add_ref(THIS->cur = parent->head);
THIS->ind = 0;
pop_n_elems(args);
if (THIS->cur->next) {
push_int(1);
} else {
push_undefined();
}
}
/*! @decl int(0..1) next()
*!
*! Advance to the next element in the list.
*!
*! @returns
*! Returns @expr{1@} on success, and @expr{0@} (zero)
*! at the end of the list.
*!
*! @seealso
*! @[prev()]
*/
PIKEFUN int(0..1) next()
{
struct list_node *next;
if ((next = THIS->cur->next)) {
free_list_node(THIS->cur);
add_ref(THIS->cur = next);
THIS->ind++;
if (next->next) {
pop_n_elems(args);
push_int(1);
return;
}
}
pop_n_elems(args);
push_int(0);
}
/*! @decl int(0..1) prev()
*!
*! Retrace to the previous element in the list.
*!
*! @returns
*! Returns @expr{1@} on success, and @expr{0@} (zero)
*! at the beginning of the list.
*!
*! @seealso
*! @[next()]
*/
PIKEFUN int(0..1) prev()
{
struct list_node *prev;
if ((prev = THIS->cur->prev)) {
free_list_node(THIS->cur);
add_ref(THIS->cur = prev);
THIS->ind--;
if (prev->prev) {
pop_n_elems(args);
push_int(1);
return;
}
}
pop_n_elems(args);
push_int(0);
}
/*! @decl Iterator `+=(int steps)
*!
*! Advance or retrace the specified number of @[steps].
*!
*! @seealso
*! @[next()], @[prev]
*/
PIKEFUN Iterator `+=(int steps)
{
if (!steps) return;
if (steps > 0) {
while (steps--) {
apply_current(f_List_cq__get_iterator_next_fun_num, 0);
pop_stack();
}
} else {
while (steps++) {
apply_current(f_List_cq__get_iterator_prev_fun_num, 0);
pop_stack();
}
}
pop_n_elems(args);
ref_push_object(Pike_fp->current_object);
}
/*! @decl void insert(mixed val)
*!
*! Insert @[val] at the current position.
*!
*! @seealso
*! @[append()], @[delete()], @[set()]
*/
PIKEFUN void insert(mixed val)
{
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | struct list_node *new_node;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | if (!THIS->cur->prev) {
Pike_error("Attempt to insert before the start sentinel.\n");
}
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | new_node = alloc_list_node();
assign_svalue_no_free(&new_node->val, val);
prepend_list_node(THIS->cur, new_node);
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | free_list_node(THIS->cur);
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | THIS->cur = new_node;
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | List__get_iterator_find_parent()->num_elems++;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | pop_n_elems(args);
push_int(0);
}
/*! @decl void append(mixed val)
*!
*! Append @[val] after the current position.
*!
*! @seealso
*! @[insert()], @[delete()], @[set()]
*/
PIKEFUN void append(mixed val)
{
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | struct list_node *new_node;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | if (!THIS->cur->next) {
Pike_error("Attempt to append after the end sentinel.\n");
}
|
669948 | 2004-09-28 | Henrik Grubbström (Grubba) | | new_node = alloc_list_node();
assign_svalue_no_free(&new_node->val, val);
append_list_node(THIS->cur, new_node);
free_list_node(new_node);
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | List__get_iterator_find_parent()->num_elems++;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | pop_n_elems(args);
push_int(0);
}
/*! @decl void delete()
*!
*! Delete the current node.
*!
*! The current position will advance to the next node.
*! This function thus performes the reverse operation
*! of @[insert()].
*!
*! @seealso
*! @[insert()], @[append()], @[set()]
*/
PIKEFUN void delete()
{
struct list_node *next;
if (!(next = THIS->cur->next) || !THIS->cur->prev) {
Pike_error("Attempt to delete a sentinel.\n");
}
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | add_ref(next);
|
ce2d40 | 2004-09-17 | Henrik Grubbström (Grubba) | | if (next->prev == THIS->cur) {
if (THIS->cur->refs == 3) {
unlink_list_node(THIS->cur);
} else {
/* There's some other iterator holding references to this node. */
detach_list_node(THIS->cur);
}
List__get_iterator_find_parent()->num_elems--;
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | }
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | free_list_node(THIS->cur);
|
cf8d5c | 2004-09-11 | Henrik Grubbström (Grubba) | | THIS->cur = next;
|
db628a | 2004-09-10 | Henrik Grubbström (Grubba) | | pop_n_elems(args);
push_int(0);
}
/*! @decl void set(mixed val)
*!
*! Set the value of the current position to @[val].
*!
*! @seealso
*! @[insert()], @[append()], @[delete()]
*/
PIKEFUN void set(mixed val)
{
if (!THIS->cur->next || !THIS->cur->prev) {
Pike_error("Attempt to set a sentinel.\n");
}
assign_svalue(&THIS->cur->val, val);
pop_n_elems(args);
push_int(0);
}
}
/*! @endclass
*/
}
/*! @endclass
*/
|
83c38b | 2004-09-14 | Henrik Grubbström (Grubba) | | /*! @endmodule
*/
|
3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | | void init_builtin(void)
{
|
7468fd | 2004-09-14 | Henrik Grubbström (Grubba) | | init_list_node_blocks();
|
ab8282 | 2000-05-25 | Fredrik Hübinette (Hubbe) | | INIT
|
3a5b1d | 2000-05-24 | Fredrik Hübinette (Hubbe) | | }
|
865075 | 2001-06-25 | Henrik Grubbström (Grubba) | |
void exit_builtin(void)
{
EXIT
|
7468fd | 2004-09-14 | Henrik Grubbström (Grubba) | | free_all_list_node_blocks();
|
865075 | 2001-06-25 | Henrik Grubbström (Grubba) | | }
|