pike.git/src/builtin_functions.c:0cf60f61bd661c88907c769b430fedc762a1ed8e

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6022 6023 6024 6025 6026 6027 6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046 6047 6048 6049 6050 6051 6052 6053 6054 6055 6056 6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 /*\ ||| This file a part of Pike, and is copyright by Fredrik Hubinette ||| Pike is distributed as GPL (General Public License) ||| See the files COPYING and DISCLAIMER for more information. \*/ /**/ #include "global.h" RCSID("$Id: builtin_functions.c,v 1.240 2000/03/08 15:56:23 grubba Exp $"); #include "interpret.h" #include "svalue.h" #include "pike_macros.h" #include "object.h" #include "program.h" #include "array.h" #include "error.h" #include "constants.h" #include "mapping.h" #include "stralloc.h" #include "multiset.h" #include "pike_types.h" #include "rusage.h" #include "operators.h" #include "fsort.h" #include "callback.h" #include "gc.h" #include "backend.h" #include "main.h" #include "pike_memory.h" #include "threads.h" #include "time_stuff.h" #include "version.h" #include "encode.h" #include <math.h> #include <ctype.h> #include "module_support.h" #include "module.h" #include "opcodes.h" #include "cyclic.h" #include "signal_handler.h" #include "security.h" #include "builtin_functions.h" #include "bignum.h" #include "language.h" #ifdef HAVE_POLL #ifdef HAVE_POLL_H #include <poll.h> #endif /* HAVE_POLL_H */ #ifdef HAVE_SYS_POLL_H #include <sys/poll.h> #endif /* HAVE_SYS_POLL_H */ #endif /* HAVE_POLL */ #ifdef HAVE_CRYPT_H #include <crypt.h> #endif /* #define DIFF_DEBUG */ /* #define ENABLE_DYN_DIFF */ void f_equal(INT32 args) { int i; if(args != 2) PIKE_ERROR("equal", "Bad number of arguments.\n", sp, args); i=is_equal(sp-2,sp-1); pop_n_elems(args); push_int(i); } #ifdef DEBUG_MALLOC void _f_aggregate(INT32 args) #else void f_aggregate(INT32 args) #endif { struct array *a; #ifdef PIKE_DEBUG if(args < 0) fatal("Negative args to f_aggregate() (%d)\n",args); #endif a=aggregate_array(args); push_array(a); /* beware, macro */ } void f_trace(INT32 args) { extern int t_flag; INT_TYPE t; get_all_args("trace", args, "%i", &t); pop_n_elems(args); push_int(t_flag); t_flag = t; } void f_hash(INT32 args) { INT32 i; if(!args) SIMPLE_TOO_FEW_ARGS_ERROR("hash",1); if(sp[-args].type != T_STRING) SIMPLE_BAD_ARG_ERROR("hash", 1, "string"); switch(sp[-args].u.string->size_shift) { case 0: i=hashstr((unsigned char *)sp[-args].u.string->str,100); break; case 1: i=simple_hashmem((unsigned char *)sp[-args].u.string->str, sp[-args].u.string->len << 1, 200); break; case 2: i=simple_hashmem((unsigned char *)sp[-args].u.string->str, sp[-args].u.string->len << 2, 400); break; default: fatal("hash(): Bad string shift:%d\n", sp[-args].u.string->size_shift); } if(args > 1) { if(sp[1-args].type != T_INT) SIMPLE_BAD_ARG_ERROR("hash",2,"int"); if(!sp[1-args].u.integer) PIKE_ERROR("hash", "Modulo by zero.\n", sp, args); i%=(unsigned INT32)sp[1-args].u.integer; } pop_n_elems(args); push_int(i); } void f_copy_value(INT32 args) { if(!args) SIMPLE_TOO_FEW_ARGS_ERROR("copy_value",1); pop_n_elems(args-1); copy_svalues_recursively_no_free(sp,sp-1,1,0); free_svalue(sp-1); sp[-1]=sp[0]; dmalloc_touch_svalue(sp-1); } void f_ctime(INT32 args) { time_t i; INT_TYPE x; get_all_args("ctime",args,"%i",&x); i=(time_t)x; pop_n_elems(args); push_string(make_shared_string(ctime(&i))); } struct case_info { int low; /* low end of range. */ int mode; int data; }; #define CIM_NONE 0 /* Case-less */ #define CIM_UPPERDELTA 1 /* Upper-case, delta to lower-case in data */ #define CIM_LOWERDELTA 2 /* Lower-case, -delta to upper-case in data */ #define CIM_CASEBIT 3 /* Some case, case mask in data */ #define CIM_CASEBITOFF 4 /* Same as above, but also offset by data */ static struct case_info case_info[] = { #ifdef IN_TPIKE #include "dummy_ci.h" #else /* !IN_TPIKE */ #include "case_info.h" #endif /* IN_TPIKE */ { 0x10000, CIM_NONE, 0x0000, }, /* End sentinel. */ }; static struct case_info *find_ci(int c) { static struct case_info *cache = NULL; struct case_info *ci = cache; int lo = 0; int hi = NELEM(case_info); if ((c < 0) || (c > 0xffff)) return NULL; if ((ci) && (ci[0].low <= c) && (ci[1].low > c)) { return ci; } while (lo != hi-1) { int mid = (lo + hi)/2; if (case_info[mid].low < c) { lo = mid; } else if (case_info[mid].low == c) { lo = mid; break; } else { hi = mid; } } return(cache = case_info + lo); } #define DO_LOWER_CASE(C) do {\ int c = C; \ struct case_info *ci = find_ci(c); \ if (ci) { \ switch(ci->mode) { \ case CIM_NONE: case CIM_LOWERDELTA: break; \ case CIM_UPPERDELTA: C = c + ci->data; break; \ case CIM_CASEBIT: C = c | ci->data; break; \ case CIM_CASEBITOFF: C = ((c - ci->data) | ci->data) + ci->data; break; \ default: fatal("lower_case(): Unknown case_info mode: %d\n", ci->mode); \ } \ } \ } while(0) #define DO_UPPER_CASE(C) do {\ int c = C; \ struct case_info *ci = find_ci(c); \ if (ci) { \ switch(ci->mode) { \ case CIM_NONE: case CIM_UPPERDELTA: break; \ case CIM_LOWERDELTA: C = c - ci->data; break; \ case CIM_CASEBIT: C = c & ~ci->data; break; \ case CIM_CASEBITOFF: C = ((c - ci->data)& ~ci->data) + ci->data; break; \ default: fatal("lower_case(): Unknown case_info mode: %d\n", ci->mode); \ } \ } \ } while(0) void f_lower_case(INT32 args) { INT32 i; struct pike_string *orig; struct pike_string *ret; get_all_args("lower_case", args, "%W", &orig); ret = begin_wide_shared_string(orig->len, orig->size_shift); MEMCPY(ret->str, orig->str, orig->len << orig->size_shift); i = orig->len; if (!orig->size_shift) { p_wchar0 *str = STR0(ret); while(i--) { DO_LOWER_CASE(str[i]); } } else if (orig->size_shift == 1) { p_wchar1 *str = STR1(ret); while(i--) { DO_LOWER_CASE(str[i]); } } else if (orig->size_shift == 2) { p_wchar2 *str = STR2(ret); while(i--) { DO_LOWER_CASE(str[i]); } } else { fatal("lower_case(): Bad string shift:%d\n", orig->size_shift); } pop_n_elems(args); push_string(end_shared_string(ret)); } void f_upper_case(INT32 args) { INT32 i; struct pike_string *orig; struct pike_string *ret; int widen = 0; get_all_args("upper_case",args,"%W",&orig); ret=begin_wide_shared_string(orig->len,orig->size_shift); MEMCPY(ret->str, orig->str, orig->len << orig->size_shift); i = orig->len; if (!orig->size_shift) { p_wchar0 *str = STR0(ret); while(i--) { if (str[i] != 0xff) { DO_UPPER_CASE(str[i]); } else { widen = 1; } } } else if (orig->size_shift == 1) { p_wchar1 *str = STR1(ret); while(i--) { DO_UPPER_CASE(str[i]); } } else if (orig->size_shift == 2) { p_wchar2 *str = STR2(ret); while(i--) { DO_UPPER_CASE(str[i]); } } else { fatal("lower_case(): Bad string shift:%d\n", orig->size_shift); } pop_n_elems(args); push_string(end_shared_string(ret)); if (widen) { /* Widen the string, and replace any 0xff's with 0x178's. */ orig = sp[-1].u.string; ret = begin_wide_shared_string(orig->len, 1); i = orig->len; while(i--) { if ((STR1(ret)[i] = STR0(orig)[i]) == 0xff) { STR1(ret)[i] = 0x178; } } free_string(sp[-1].u.string); sp[-1].u.string = end_shared_string(ret); } } void f_random(INT32 args) { INT_TYPE i; if(args && (sp[-args].type == T_OBJECT)) { pop_n_elems(args-1); apply(sp[-1].u.object,"_random",0); stack_swap(); pop_stack(); return; } get_all_args("random",args,"%i",&i); if(i <= 0) { i = 0; }else{ i = my_rand() % i; } pop_n_elems(args); push_int(i); } void f_random_seed(INT32 args) { INT_TYPE i; #ifdef AUTO_BIGNUM check_all_args("random_seed",args,BIT_INT | BIT_OBJECT, 0); if(sp[-args].type == T_INT) { i=sp[-args].u.integer; }else{ i=hash_svalue(sp-args); } #else get_all_args("random_seed",args,"%i",&i); #endif my_srand(i); pop_n_elems(args); } void f_query_num_arg(INT32 args) { pop_n_elems(args); push_int(fp ? fp->args : 0); } void f_search(INT32 args) { INT32 start; if(args < 2) SIMPLE_TOO_FEW_ARGS_ERROR("search", 2); switch(sp[-args].type) { case T_STRING: { char *ptr; if(sp[1-args].type != T_STRING) SIMPLE_BAD_ARG_ERROR("search", 2, "string"); start=0; if(args > 2) { if(sp[2-args].type!=T_INT) SIMPLE_BAD_ARG_ERROR("search", 3, "int"); start=sp[2-args].u.integer; if(start<0) { bad_arg_error("search", sp-args, args, 3, "int(0..)", sp+2-args, "Start must be greater or equal to zero.\n"); } } if(sp[-args].u.string->len < start) bad_arg_error("search", sp-args, args, 1, "int(0..)", sp-args, "Start must not be greater than the " "length of the string.\n"); start=string_search(sp[-args].u.string, sp[1-args].u.string, start); pop_n_elems(args); push_int(start); break; } case T_ARRAY: start=0; if(args > 2) { if(sp[2-args].type!=T_INT) SIMPLE_BAD_ARG_ERROR("search", 3, "int"); start=sp[2-args].u.integer; if(start<0) { bad_arg_error("search", sp-args, args, 3, "int(0..)", sp+2-args, "Start must be greater or equal to zero.\n"); } } start=array_search(sp[-args].u.array,sp+1-args,start); pop_n_elems(args); push_int(start); break; case T_MAPPING: if(args > 2) { mapping_search_no_free(sp,sp[-args].u.mapping,sp+1-args,sp+2-args); } else { mapping_search_no_free(sp,sp[-args].u.mapping,sp+1-args,0); } free_svalue(sp-args); sp[-args]=*sp; dmalloc_touch_svalue(sp); pop_n_elems(args-1); return; default: SIMPLE_BAD_ARG_ERROR("search", 1, "string|array|mapping"); } } void f_has_index(INT32 args) { int t = 0; if(args != 2) PIKE_ERROR("has_index", "Bad number of arguments.\n", sp, args); switch(sp[-2].type) { case T_STRING: if(sp[-1].type == T_INT) t = (0 <= sp[-1].u.integer && sp[-1].u.integer < sp[-2].u.string->len); pop_n_elems(args); push_int(t); break; case T_ARRAY: if(sp[-1].type == T_INT) t = (0 <= sp[-1].u.integer && sp[-1].u.integer < sp[-2].u.array->size); pop_n_elems(args); push_int(t); break; case T_MULTISET: case T_MAPPING: f_index(2); f_zero_type(1); if(sp[-1].type == T_INT) sp[-1].u.integer = !sp[-1].u.integer; else PIKE_ERROR("has_index", "Function `zero_type' gave incorrect result.\n", sp, args); break; case T_OBJECT: /* FIXME: If the object behaves like an array, it will throw an error for non-valid indices. Therefore it's not a good idea to use the index operator. Maybe we should use object->_has_index(index) provided that the object implements it. /Noring */ /* Fall-through. */ default: stack_swap(); f_indices(1); stack_swap(); f_search(2); if(sp[-1].type == T_INT) sp[-1].u.integer = (sp[-1].u.integer != -1); else PIKE_ERROR("has_index", "Function `search' gave incorrect result.\n", sp, args); } } void f_has_value(INT32 args) { if(args != 2) PIKE_ERROR("has_value", "Bad number of arguments.\n", sp, args); switch(sp[-2].type) { case T_MAPPING: f_search(2); f_zero_type(1); if(sp[-1].type == T_INT) sp[-1].u.integer = !sp[-1].u.integer; else PIKE_ERROR("has_value", "Function `zero_type' gave incorrect result.\n", sp, args); break; case T_OBJECT: /* FIXME: It's very sad that we always have to do linear search with `values' in case of objects. The problem is that we cannot use `search' directly since it's undefined weather it returns -1 (array) or 0 (mapping) during e.g. some data type emulation. Maybe we should use object->_has_value(value) provided that the object implements it. /Noring */ /* Fall-through. */ default: stack_swap(); f_values(1); stack_swap(); case T_STRING: /* Strings are odd. /Noring */ case T_ARRAY: f_search(2); if(sp[-1].type == T_INT) sp[-1].u.integer = (sp[-1].u.integer != -1); else PIKE_ERROR("has_value", "Search gave incorrect result.\n", sp, args); } } /* Old backtrace */ void f_backtrace(INT32 args) { INT32 frames; struct pike_frame *f,*of; struct array *a,*i; frames=0; if(args) pop_n_elems(args); for(f=fp;f;f=f->next) frames++; sp->type=T_ARRAY; sp->u.array=a=allocate_array_no_init(frames,0); sp++; /* NOTE: The first pike_frame is ignored, since it is the call to backtrace(). */ of=0; for(f=fp;f;f=(of=f)->next) { char *program_name; frames--; if(f->current_object && f->context.prog) { INT32 args; args=f->num_args; args=MINIMUM(f->num_args, sp - f->locals); if(of) args=MINIMUM(f->num_args, of->locals - f->locals); args=MAXIMUM(args,0); ITEM(a)[frames].u.array=i=allocate_array_no_init(3+args,0); ITEM(a)[frames].type=T_ARRAY; assign_svalues_no_free(ITEM(i)+3, f->locals, args, BIT_MIXED); if(f->current_object->prog) { ITEM(i)[2].type=T_FUNCTION; ITEM(i)[2].subtype=f->fun; ITEM(i)[2].u.object=f->current_object; add_ref(f->current_object); }else{ ITEM(i)[2].type=T_INT; ITEM(i)[2].subtype=NUMBER_DESTRUCTED; ITEM(i)[2].u.integer=0; } if(f->pc) { program_name=get_line(f->pc, f->context.prog, & ITEM(i)[1].u.integer); ITEM(i)[1].subtype=NUMBER_NUMBER; ITEM(i)[1].type=T_INT; ITEM(i)[0].u.string=make_shared_string(program_name); #ifdef __CHECKER__ ITEM(i)[0].subtype=0; #endif ITEM(i)[0].type=T_STRING; }else{ ITEM(i)[1].u.integer=0; ITEM(i)[1].subtype=NUMBER_NUMBER; ITEM(i)[1].type=T_INT; ITEM(i)[0].u.integer=0; ITEM(i)[0].subtype=NUMBER_NUMBER; ITEM(i)[0].type=T_INT; } }else{ ITEM(a)[frames].type=T_INT; ITEM(a)[frames].u.integer=0; } } a->type_field = BIT_ARRAY | BIT_INT; } void f_add_constant(INT32 args) { CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("add_constant: permission denied.\n")); if(args<1) SIMPLE_TOO_FEW_ARGS_ERROR("add_constant", 1); if(sp[-args].type!=T_STRING) SIMPLE_BAD_ARG_ERROR("add_constant", 1, "string"); if(args>1) { dmalloc_touch_svalue(sp-args+1); low_add_efun(sp[-args].u.string, sp-args+1); }else{ low_add_efun(sp[-args].u.string, 0); } pop_n_elems(args); } #ifndef __NT__ #define IS_SEP(X) ( (X)=='/' ) #define IS_ABS(X) (IS_SEP((X)[0])?1:0) #else #define IS_SEP(X) ( (X) == '/' || (X) == '\\' ) static int find_absolute(char *s) { if(isalpha(s[0]) && s[1]==':' && IS_SEP(s[2])) return 3; if(IS_SEP(s[0]) && IS_SEP(s[1])) { int l; for(l=2;isalpha(s[l]);l++); return l; } return 0; } #define IS_ABS(X) find_absolute((X)) #define IS_ROOT(X) (IS_SEP((X)[0])?1:0) #endif static char *combine_path(char *cwd,char *file) { /* cwd is supposed to be combined already */ char *ret; register char *from,*to; char *my_cwd; char cwdbuf[10]; int tmp; my_cwd=0; if((tmp=IS_ABS(file))) { MEMCPY(cwdbuf,file,tmp); cwdbuf[tmp]=0; cwd=cwdbuf; file+=tmp; } #ifdef IS_ROOT else if(IS_ROOT(file)) { if(tmp=IS_ABS(cwd)) { MEMCPY(cwdbuf,cwd,tmp); cwdbuf[tmp]=0; cwd=cwdbuf; file+=IS_ROOT(file); }else{ MEMCPY(cwdbuf,file,IS_ROOT(file)); cwdbuf[IS_ROOT(file)]=0; cwd=cwdbuf; file+=IS_ROOT(file); } } #endif #ifdef PIKE_DEBUG if(!cwd) fatal("No cwd in combine_path!\n"); #endif if(!*cwd || IS_SEP(cwd[strlen(cwd)-1])) { ret=(char *)xalloc(strlen(cwd)+strlen(file)+1); strcpy(ret,cwd); strcat(ret,file); }else{ ret=(char *)xalloc(strlen(cwd)+strlen(file)+2); strcpy(ret,cwd); strcat(ret,"/"); strcat(ret,file); } from=to=ret; #ifdef __NT__ if(IS_SEP(from[0]) && IS_SEP(from[1])) *(to++)=*(from++); else #endif /* Skip all leading "./" */ while(from[0]=='.' && IS_SEP(from[1])) from+=2; while(( *to = *from )) { if(IS_SEP(*from)) { while(to>ret && to[-1]=='/') to--; if(from[1] == '.') { switch(from[2]) { case '.': if(IS_SEP(from[3]) || !from[3]) { char *tmp=to; while(--tmp>=ret) if(IS_SEP(*tmp)) break; tmp++; if(tmp[0]=='.' && tmp[1]=='.' && (IS_SEP(tmp[2]) || !tmp[2])) break; from+=3; to=tmp; continue; } break; case 0: case '/': #ifdef __NT__ case '\\': #endif from+=2; continue; } } } from++; to++; } if(*ret && !IS_SEP(from[-1]) && IS_SEP(to[-1])) *--to=0; if(!*ret) { if(IS_SEP(*cwd)) { ret[0]='/'; ret[1]=0; }else{ ret[0]='.'; ret[1]=0; } } if(my_cwd) free(my_cwd); return ret; } void f_combine_path(INT32 args) { char *path=0; int e,dofree=0; struct pike_string *ret; if(args<1) SIMPLE_TOO_FEW_ARGS_ERROR("combine_path", 1); if(sp[-args].type != T_STRING) SIMPLE_BAD_ARG_ERROR("combine_path", 1, "string"); path=sp[-args].u.string->str; for(e=1;e<args;e++) { char *newpath; if(sp[e-args].type != T_STRING) { if(dofree) free(path); SIMPLE_BAD_ARG_ERROR("combine_path", e+1, "string"); } newpath=combine_path(path,sp[e-args].u.string->str); if(dofree) free(path); path=newpath; dofree=1; } ret=make_shared_string(path); if(dofree) free(path); pop_n_elems(args); push_string(ret); } void f_function_object(INT32 args) { if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("function_object",1); if(sp[-args].type != T_FUNCTION) SIMPLE_BAD_ARG_ERROR("function_object",1,"function"); if(sp[-args].subtype == FUNCTION_BUILTIN) { pop_n_elems(args); push_int(0); }else{ pop_n_elems(args-1); sp[-1].type=T_OBJECT; } } void f_function_name(INT32 args) { struct pike_string *s; if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("function_name", 1); if(sp[-args].type != T_FUNCTION) SIMPLE_BAD_ARG_ERROR("function_name", 1, "function"); if(sp[-args].subtype == FUNCTION_BUILTIN) { pop_n_elems(args); push_int(0); }else{ if(!sp[-args].u.object->prog) bad_arg_error("function_name", sp-args, args, 1, "function", sp-args, "Destructed object.\n"); copy_shared_string(s,ID_FROM_INT(sp[-args].u.object->prog, sp[-args].subtype)->name); pop_n_elems(args); sp->type=T_STRING; sp->u.string=s; sp++; } } void f_zero_type(INT32 args) { if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("zero_type",1); if(sp[-args].type != T_INT) { pop_n_elems(args); push_int(0); } else if((sp[-args].type==T_OBJECT || sp[-args].type==T_FUNCTION) && !sp[-args].u.object->prog) { pop_n_elems(args); push_int(NUMBER_DESTRUCTED); } { pop_n_elems(args-1); sp[-1].u.integer=sp[-1].subtype; sp[-1].subtype=NUMBER_NUMBER; } } /* * Some wide-strings related functions */ void f_string_to_unicode(INT32 args) { struct pike_string *in; struct pike_string *out = NULL; INT32 len; int i; get_all_args("string_to_unicode", args, "%W", &in); switch(in->size_shift) { case 0: /* Just 8bit characters */ len = in->len * 2; out = begin_shared_string(len); MEMSET(out->str, 0, len); /* Clear the upper (and lower) byte */ for(i = in->len; i--;) { out->str[i * 2 + 1] = in->str[i]; } out = end_shared_string(out); break; case 1: /* 16 bit characters */ /* FIXME: Should we check for 0xfffe & 0xffff here too? */ len = in->len * 2; out = begin_shared_string(len); #if (PIKE_BYTEORDER == 4321) /* Big endian -- We don't need to do much... * * FIXME: Future optimization: Check if refcount is == 1, * and perform sufficient magic to be able to convert in place. */ MEMCPY(out->str, in->str, len); #else /* Other endianness, may need to do byte-order conversion also. */ { p_wchar1 *str1 = STR1(in); for(i = in->len; i--;) { unsigned INT32 c = str1[i]; out->str[i * 2 + 1] = c & 0xff; out->str[i * 2] = c >> 8; } } #endif out = end_shared_string(out); break; case 2: /* 32 bit characters -- Is someone writing in Klingon? */ { p_wchar2 *str2 = STR2(in); int j; len = in->len * 2; /* Check how many extra wide characters there are. */ for(i = in->len; i--;) { if (str2[i] > 0xfffd) { if (str2[i] < 0x10000) { /* 0xfffe: Byte-order detection illegal character. * 0xffff: Illegal character. */ error("string_to_unicode(): Illegal character 0x%04x (index %d) " "is not a Unicode character.", str2[i], i); } if (str2[i] > 0x10ffff) { error("string_to_unicode(): Character 0x%08x (index %d) " "is out of range (0x00000000 - 0x0010ffff).", str2[i], i); } /* Extra wide characters take two unicode characters in space. * ie One unicode character extra. */ len += 2; } } out = begin_shared_string(len); j = len; for(i = in->len; i--;) { unsigned INT32 c = str2[i]; j -= 2; if (c > 0xffff) { /* Use surrogates */ c -= 0x10000; out->str[j + 1] = c & 0xff; out->str[j] = 0xdc | ((c >> 8) & 0x03); j -= 2; c >>= 10; c |= 0xd800; } out->str[j + 1] = c & 0xff; out->str[j] = c >> 8; } #ifdef PIKE_DEBUG if (j) { fatal("string_to_unicode(): Indexing error: len:%d, j:%d.\n", len, j); } #endif /* PIKE_DEBUG */ out = end_shared_string(out); } break; default: error("string_to_unicode(): Bad string shift: %d!\n", in->size_shift); break; } pop_n_elems(args); push_string(out); } void f_unicode_to_string(INT32 args) { struct pike_string *in; struct pike_string *out = NULL; INT32 len; get_all_args("unicode_to_string", args, "%S", &in); if (in->len & 1) { bad_arg_error("unicode_to_string", sp-args, args, 1, "string", sp-args, "String length is odd.\n"); } /* FIXME: In the future add support for decoding of surrogates. */ len = in->len / 2; out = begin_wide_shared_string(len, 1); #if (PIKE_BYTEORDER == 4321) /* Big endian * * FIXME: Future optimization: Perform sufficient magic * to do the conversion in place if the ref-count is == 1. */ MEMCPY(out->str, in->str, in->len); #else /* Little endian */ { int i; p_wchar1 *str1 = STR1(out); for (i = len; i--;) { str1[i] = (((unsigned char *)in->str)[i*2]<<8) + ((unsigned char *)in->str)[i*2 + 1]; } } #endif /* PIKE_BYTEORDER == 4321 */ out = end_shared_string(out); pop_n_elems(args); push_string(out); } void f_string_to_utf8(INT32 args) { int len; struct pike_string *in; struct pike_string *out; int i,j; int extended = 0; get_all_args("string_to_utf8", args, "%W", &in); if (args > 1) { if (sp[1-args].type != T_INT) { SIMPLE_BAD_ARG_ERROR("string_to_utf8", 2, "int|void"); } extended = sp[1-args].u.integer; } len = in->len; for(i=0; i < in->len; i++) { unsigned INT32 c = index_shared_string(in, i); if (c & ~0x7f) { /* 8bit or more. */ len++; if (c & ~0x7ff) { /* 12bit or more. */ len++; if (c & ~0xffff) { /* 17bit or more. */ len++; if (c & ~0x1fffff) { /* 22bit or more. */ len++; if (c & ~0x3ffffff) { /* 27bit or more. */ len++; if (c & ~0x7fffffff) { /* 32bit or more. */ if (!extended) { error("string_to_utf8(): " "Value 0x%08x (index %d) is larger than 31 bits.\n", c, i); } len++; /* FIXME: Needs fixing when we get 64bit chars... */ } } } } } } } if (len == in->len) { /* 7bit string -- already valid utf8. */ pop_n_elems(args - 1); return; } out = begin_shared_string(len); for(i=j=0; i < in->len; i++) { unsigned INT32 c = index_shared_string(in, i); if (!(c & ~0x7f)) { /* 7bit */ out->str[j++] = c; } else if (!(c & ~0x7ff)) { /* 11bit */ out->str[j++] = 0xc0 | (c >> 6); out->str[j++] = 0x80 | (c & 0x3f); } else if (!(c & ~0xffff)) { /* 16bit */ out->str[j++] = 0xe0 | (c >> 12); out->str[j++] = 0x80 | ((c >> 6) & 0x3f); out->str[j++] = 0x80 | (c & 0x3f); } else if (!(c & ~0x1fffff)) { /* 21bit */ out->str[j++] = 0xf0 | (c >> 18); out->str[j++] = 0x80 | ((c >> 12) & 0x3f); out->str[j++] = 0x80 | ((c >> 6) & 0x3f); out->str[j++] = 0x80 | (c & 0x3f); } else if (!(c & ~0x3ffffff)) { /* 26bit */ out->str[j++] = 0xf8 | (c >> 24); out->str[j++] = 0x80 | ((c >> 18) & 0x3f); out->str[j++] = 0x80 | ((c >> 12) & 0x3f); out->str[j++] = 0x80 | ((c >> 6) & 0x3f); out->str[j++] = 0x80 | (c & 0x3f); } else if (!(c & ~0x7fffffff)) { /* 31bit */ out->str[j++] = 0xfc | (c >> 30); out->str[j++] = 0x80 | ((c >> 24) & 0x3f); out->str[j++] = 0x80 | ((c >> 18) & 0x3f); out->str[j++] = 0x80 | ((c >> 12) & 0x3f); out->str[j++] = 0x80 | ((c >> 6) & 0x3f); out->str[j++] = 0x80 | (c & 0x3f); } else { /* This and onwards is extended UTF-8 encoding. */ /* 32 - 36bit */ out->str[j++] = 0xfe; out->str[j++] = 0x80 | ((c >> 30) & 0x3f); out->str[j++] = 0x80 | ((c >> 24) & 0x3f); out->str[j++] = 0x80 | ((c >> 18) & 0x3f); out->str[j++] = 0x80 | ((c >> 12) & 0x3f); out->str[j++] = 0x80 | ((c >> 6) & 0x3f); out->str[j++] = 0x80 | (c & 0x3f); } } #ifdef PIKE_DEBUG if (len != j) { fatal("string_to_utf8(): Calculated and actual lengths differ: %d != %d\n", len, j); } #endif /* PIKE_DEBUG */ out = end_shared_string(out); pop_n_elems(args); push_string(out); } void f_utf8_to_string(INT32 args) { struct pike_string *in; struct pike_string *out; int len = 0; int shift = 0; int i,j; int extended = 0; get_all_args("utf8_to_string", args, "%S", &in); if (args > 1) { if (sp[1-args].type != T_INT) { SIMPLE_BAD_ARG_ERROR("utf8_to_string()", 2, "int|void"); } extended = sp[1-args].u.integer; } for(i=0; i < in->len; i++) { unsigned int c = ((unsigned char *)in->str)[i]; len++; if (c & 0x80) { int cont = 0; if ((c & 0xc0) == 0x80) { error("utf8_to_string(): " "Unexpected continuation block 0x%02x at index %d.\n", c, i); } if ((c & 0xe0) == 0xc0) { /* 11bit */ cont = 1; if (c & 0x1c) { if (shift < 1) { shift = 1; } } } else if ((c & 0xf0) == 0xe0) { /* 16bit */ cont = 2; if (shift < 1) { shift = 1; } } else { shift = 2; if ((c & 0xf8) == 0xf0) { /* 21bit */ cont = 3; } else if ((c & 0xfc) == 0xf8) { /* 26bit */ cont = 4; } else if ((c & 0xfe) == 0xfc) { /* 31bit */ cont = 5; } else if (c == 0xfe) { /* 36bit */ if (!extended) { error("utf8_to_string(): " "Character 0xfe at index %d when not in extended mode.\n", i); } cont = 6; } else { error("utf8_to_string(): " "Unexpected character 0xff at index %d.\n", i); } } while(cont--) { i++; if (i >= in->len) { error("utf8_to_string(): Truncated UTF8 sequence.\n"); } c = ((unsigned char *)(in->str))[i]; if ((c & 0xc0) != 0x80) { error("utf8_to_string(): " "Expected continuation character at index %d (got 0x%02x).\n", i, c); } } } } if (len == in->len) { /* 7bit in == 7bit out */ pop_n_elems(args-1); return; } out = begin_wide_shared_string(len, shift); for(j=i=0; i < in->len; i++) { unsigned int c = ((unsigned char *)in->str)[i]; if (c & 0x80) { int cont = 0; /* NOTE: The tests aren't as paranoid here, since we've * already tested the string above. */ if ((c & 0xe0) == 0xc0) { /* 11bit */ cont = 1; c &= 0x1f; } else if ((c & 0xf0) == 0xe0) { /* 16bit */ cont = 2; c &= 0x0f; } else if ((c & 0xf8) == 0xf0) { /* 21bit */ cont = 3; c &= 0x07; } else if ((c & 0xfc) == 0xf8) { /* 26bit */ cont = 4; c &= 0x03; } else if ((c & 0xfe) == 0xfc) { /* 31bit */ cont = 5; c &= 0x01; } else { /* 36bit */ cont = 6; c = 0; } while(cont--) { unsigned INT32 c2 = ((unsigned char *)(in->str))[++i] & 0x3f; c = (c << 6) | c2; } } low_set_index(out, j++, c); } #ifdef PIKE_DEBUG if (j != len) { fatal("utf8_to_string(): Calculated and actual lengths differ: %d != %d\n", len, j); } #endif /* PIKE_DEBUG */ out = end_shared_string(out); pop_n_elems(args); push_string(out); } static void f_parse_pike_type( INT32 args ) { struct pike_string *res; if( sp[-1].type != T_STRING || sp[-1].u.string->size_shift ) error( "__parse_type requires a 8bit string as its first argument\n" ); res = parse_type( (char *)STR0(sp[-1].u.string) ); pop_stack(); push_string( res ); } void f_all_constants(INT32 args) { pop_n_elems(args); ref_push_mapping(get_builtin_constants()); } void f_allocate(INT32 args) { INT32 size; struct array *a; if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("allocate",1); if(sp[-args].type!=T_INT) SIMPLE_BAD_ARG_ERROR("allocate",1,"int"); size=sp[-args].u.integer; if(size < 0) PIKE_ERROR("allocate", "Can't allocate array of negative size.\n", sp, args); a=allocate_array(size); if(args>1) { INT32 e; for(e=0;e<a->size;e++) copy_svalues_recursively_no_free(a->item+e, sp-args+1, 1, 0); } pop_n_elems(args); push_array(a); } void f_rusage(INT32 args) { INT32 *rus,e; struct array *v; pop_n_elems(args); rus=low_rusage(); if(!rus) PIKE_ERROR("rusage", "System rusage information not available.\n", sp, args); v=allocate_array_no_init(29,0); for(e=0;e<29;e++) { ITEM(v)[e].type=T_INT; ITEM(v)[e].subtype=NUMBER_NUMBER; ITEM(v)[e].u.integer=rus[e]; } sp->u.array=v; sp->type=T_ARRAY; sp++; } void f_this_object(INT32 args) { pop_n_elems(args); if(fp) { ref_push_object(fp->current_object); }else{ push_int(0); } } node *fix_this_object_type(node *n) { free_string(n->type); type_stack_mark(); push_type_int(new_program->id); /* push_type(1); We are rather sure that we contain ourselves... */ push_type(0); /* But it did not work yet, so... */ push_type(T_OBJECT); n->type = pop_unfinished_type(); if (n->parent) { n->parent->node_info |= OPT_TYPE_NOT_FIXED; } return NULL; } void f_throw(INT32 args) { if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("throw", 1); assign_svalue(&throw_value,sp-args); pop_n_elems(args); throw_severity=0; pike_throw(); } void f_exit(INT32 args) { static int in_exit=0; CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("exit: permission denied.\n")); if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("exit", 1); if(sp[-args].type != T_INT) SIMPLE_BAD_ARG_ERROR("exit", 1, "int"); if(in_exit) error("exit already called!\n"); in_exit=1; assign_svalue(&throw_value, sp-args); throw_severity=THROW_EXIT; pike_throw(); } void f__exit(INT32 args) { CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("_exit: permission denied.\n")); if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("_exit", 1); if(sp[-args].type != T_INT) SIMPLE_BAD_ARG_ERROR("_exit", 1, "int"); exit(sp[-args].u.integer); } void f_time(INT32 args) { if(!args) { GETTIMEOFDAY(&current_time); }else{ if(sp[-args].type == T_INT && sp[-args].u.integer > 1) { struct timeval tmp; GETTIMEOFDAY(&current_time); tmp.tv_sec=sp[-args].u.integer; tmp.tv_usec=0; my_subtract_timeval(&tmp,&current_time); pop_n_elems(args); push_float( - (float)tmp.tv_sec - ((float)tmp.tv_usec)/1000000 ); return; } } pop_n_elems(args); push_int(current_time.tv_sec); } void f_crypt(INT32 args) { char salt[2]; char *ret, *saltp; char *choise = "cbhisjKlm4k65p7qrJfLMNQOPxwzyAaBDFgnoWXYCZ0123tvdHueEGISRTUV89./"; if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("crypt", 1); if(sp[-args].type != T_STRING) SIMPLE_BAD_ARG_ERROR("crypt", 1, "string"); if(args>1) { if(sp[1-args].type != T_STRING || sp[1-args].u.string->len < 2) { pop_n_elems(args); push_int(0); return; } saltp=sp[1-args].u.string->str; } else { unsigned int foo; /* Sun CC want's this :( */ foo=my_rand(); salt[0] = choise[foo % (unsigned int) strlen(choise)]; foo=my_rand(); salt[1] = choise[foo % (unsigned int) strlen(choise)]; saltp=salt; } #ifdef HAVE_CRYPT ret = (char *)crypt(sp[-args].u.string->str, saltp); #else #ifdef HAVE__CRYPT ret = (char *)_crypt(sp[-args].u.string->str, saltp); #else ret = sp[-args].u.string->str; #endif #endif if(args < 2) { pop_n_elems(args); push_string(make_shared_string(ret)); }else{ int i; i=!strcmp(ret,sp[1-args].u.string->str); pop_n_elems(args); push_int(i); } } void f_destruct(INT32 args) { struct object *o; if(args) { if(sp[-args].type != T_OBJECT) SIMPLE_BAD_ARG_ERROR("destruct", 1, "object"); o=sp[-args].u.object; }else{ if(!fp) PIKE_ERROR("destruct", "Destruct called without argument from callback function.\n", sp, args); o=fp->current_object; } if (o->prog && o->prog->flags & PROGRAM_NO_EXPLICIT_DESTRUCT) PIKE_ERROR("destruct", "Object can't be destructed explicitly.\n", sp, args); #ifdef PIKE_SECURITY if(!CHECK_DATA_SECURITY(o, SECURITY_BIT_DESTRUCT)) error("Destruct permission denied.\n"); #endif destruct(o); pop_n_elems(args); } void f_indices(INT32 args) { INT32 size; struct array *a; if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("indices", 1); switch(sp[-args].type) { case T_STRING: size=sp[-args].u.string->len; goto qjump; case T_ARRAY: size=sp[-args].u.array->size; qjump: a=allocate_array_no_init(size,0); while(--size>=0) { ITEM(a)[size].type=T_INT; ITEM(a)[size].subtype=NUMBER_NUMBER; ITEM(a)[size].u.integer=size; } break; case T_MAPPING: a=mapping_indices(sp[-args].u.mapping); break; case T_MULTISET: a=copy_array(sp[-args].u.multiset->ind); break; case T_OBJECT: a=object_indices(sp[-args].u.object); break; case T_PROGRAM: a = program_indices(sp[-args].u.program); break; case T_FUNCTION: { struct program *p = program_from_svalue(sp-args); if (p) { a = program_indices(p); break; } } /* FALL THROUGH */ default: SIMPLE_BAD_ARG_ERROR("indices", 1, "string|array|mapping|" "multiset|object|program|function"); return; /* make apcc happy */ } pop_n_elems(args); push_array(a); } /* this should probably be moved to pike_constants.c or something */ #define FIX_OVERLOADED_TYPE(n, lf, X) fix_overloaded_type(n,lf,X,CONSTANT_STRLEN(X)) static node *fix_overloaded_type(node *n, int lfun, const char *deftype, int deftypelen) { node **first_arg; struct pike_string *t,*t2; first_arg=my_get_arg(&_CDR(n), 0); if(!first_arg) return 0; t=first_arg[0]->type; if(!t || match_types(t, object_type_string)) { if(t && t->str[0]==T_OBJECT) { struct program *p=id_to_program(extract_type_int(t->str+2)); if(p) { int fun=FIND_LFUN(p, lfun); /* FIXME: function type string should really be compiled from * the arguments so that or:ed types are handled correctly */ if(fun!=-1 && (t2=check_call(function_type_string , ID_FROM_INT(p, fun)->type, 0))) { free_string(n->type); n->type=t2; return 0; } } } /* If it is an object, it *may* be overloaded, we or with * the deftype.... */ #if 1 if(deftype) { t2=make_shared_binary_string(deftype, deftypelen); t=n->type; n->type=or_pike_types(t,t2,0); free_string(t); free_string(t2); } #endif } return 0; /* continue optimization */ } static node *fix_indices_type(node *n) { return FIX_OVERLOADED_TYPE(n, LFUN__INDICES, tArray); } static node *fix_values_type(node *n) { return FIX_OVERLOADED_TYPE(n, LFUN__VALUES, tArray); } static node *fix_aggregate_mapping_type(node *n) { struct pike_string *types[2] = { NULL, NULL }; node *args = CDR(n); struct pike_string *new_type = NULL; #ifdef PIKE_DEBUG if (l_flag > 2) { fprintf(stderr, "Fixing type for aggregate_mapping():\n"); print_tree(n); fprintf(stderr, "Original type:"); simple_describe_type(n->type); } #endif /* PIKE_DEBUG */ if (args) { node *arg = args; int argno = 0; /* Make it easier to find... */ args->parent = 0; while(arg) { #ifdef PIKE_DEBUG if (l_flag > 4) { fprintf(stderr, "Searching for arg #%d...\n", argno); } #endif /* PIKE_DEBUG */ if (arg->token == F_ARG_LIST) { if (CAR(arg)) { CAR(arg)->parent = arg; arg = CAR(arg); continue; } if (CDR(arg)) { CDR(arg)->parent = arg; arg = CDR(arg); continue; } /* Retrace */ retrace: #ifdef PIKE_DEBUG if (l_flag > 4) { fprintf(stderr, "Retracing in search for arg %d...\n", argno); } #endif /* PIKE_DEBUG */ while (arg->parent && (!CDR(arg->parent) || (CDR(arg->parent) == arg))) { arg = arg->parent; } if (!arg->parent) { /* No more args. */ break; } arg = arg->parent; CDR(arg)->parent = arg; arg = CDR(arg); continue; } if (arg->token == F_PUSH_ARRAY) { /* FIXME: Should get the type from the pushed array. */ /* FIXME: Should probably be fixed in las.c:fix_type_field() */ MAKE_CONSTANT_SHARED_STRING(new_type, tMap(tMixed, tMixed)); goto set_type; } #ifdef PIKE_DEBUG if (l_flag > 4) { fprintf(stderr, "Found arg #%d:\n", argno); print_tree(arg); simple_describe_type(arg->type); } #endif /* PIKE_DEBUG */ do { if (types[argno]) { struct pike_string *t = or_pike_types(types[argno], arg->type, 0); free_string(types[argno]); types[argno] = t; #ifdef PIKE_DEBUG if (l_flag > 4) { fprintf(stderr, "Resulting type for arg #%d:\n", argno); simple_describe_type(types[argno]); } #endif /* PIKE_DEBUG */ } else { copy_shared_string(types[argno], arg->type); } argno = !argno; /* Handle the special case where CAR & CDR are the same. * Only occurrs with SHARED_NODES. */ } while (argno && arg->parent && CAR(arg->parent) == CDR(arg->parent)); goto retrace; } if (argno) { yyerror("Odd number of arguments to aggregate_mapping()."); goto done; } if (!types[0]) { MAKE_CONSTANT_SHARED_STRING(new_type, tMap(tZero, tZero)); goto set_type; } type_stack_mark(); push_unfinished_type(types[1]->str); push_unfinished_type(types[0]->str); push_type(T_MAPPING); new_type = pop_unfinished_type(); } else { MAKE_CONSTANT_SHARED_STRING(new_type, tMap(tZero, tZero)); goto set_type; } if (new_type) { set_type: free_string(n->type); n->type = new_type; #ifdef PIKE_DEBUG if (l_flag > 2) { fprintf(stderr, "Result type: "); simple_describe_type(new_type); } #endif /* PIKE_DEBUG */ if (n->parent) { n->parent->node_info |= OPT_TYPE_NOT_FIXED; } } done: if (args) { /* Not really needed, but... */ args->parent = n; } if (types[1]) { free_string(types[1]); } if (types[0]) { free_string(types[0]); } return NULL; } void f_values(INT32 args) { INT32 size; struct array *a; if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("values", 1); switch(sp[-args].type) { case T_STRING: size = sp[-args].u.string->len; a = allocate_array_no_init(size,0); while(--size >= 0) { ITEM(a)[size].type = T_INT; ITEM(a)[size].subtype = NUMBER_NUMBER; ITEM(a)[size].u.integer = index_shared_string(sp[-args].u.string, size); } break; case T_ARRAY: a=copy_array(sp[-args].u.array); break; case T_MAPPING: a=mapping_values(sp[-args].u.mapping); break; case T_MULTISET: size=sp[-args].u.multiset->ind->size; a=allocate_array_no_init(size,0); while(--size>=0) { ITEM(a)[size].type=T_INT; ITEM(a)[size].subtype=NUMBER_NUMBER; ITEM(a)[size].u.integer=1; } break; case T_OBJECT: a=object_values(sp[-args].u.object); break; case T_PROGRAM: a = program_values(sp[-args].u.program); break; case T_FUNCTION: { struct program *p = program_from_svalue(sp - args); if (p) { a = program_values(p); break; } } /* FALL THROUGH */ default: SIMPLE_BAD_ARG_ERROR("values", 1, "string|array|mapping|multiset|" "object|program|function"); return; /* make apcc happy */ } pop_n_elems(args); push_array(a); } void f_next_object(INT32 args) { struct object *o; if(args < 1) { o=first_object; }else{ if(sp[-args].type != T_OBJECT) SIMPLE_BAD_ARG_ERROR("next_object", 1, "object"); o=sp[-args].u.object->next; while(o && !o->prog) o=o->next; } pop_n_elems(args); if(!o) { push_int(0); }else{ ref_push_object(o); } } void f_object_program(INT32 args) { if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("object_program", 1); if(sp[-args].type == T_OBJECT) { struct object *o=sp[-args].u.object; struct program *p; if((p=o->prog)) { if(o->parent && o->parent->prog) { INT32 id=o->parent_identifier; o=o->parent; add_ref(o); pop_n_elems(args); push_object(o); sp[-1].subtype=id; sp[-1].type=T_FUNCTION; return; }else{ add_ref(p); pop_n_elems(args); push_program(p); return; } } } pop_n_elems(args); push_int(0); } node *fix_object_program_type(node *n) { /* Fix the type for a common case: * * object_program(object(is|implements foo)) */ node *nn; struct pike_string *new_type = NULL; if (!n->type) { copy_shared_string(n->type, program_type_string); } if (!(nn = CDR(n))) return NULL; if ((nn->token == F_ARG_LIST) && (!(nn = CAR(nn)))) return NULL; if (!nn->type) return NULL; /* Perform the actual conversion. */ new_type = object_type_to_program_type(nn->type); if (new_type) { free_string(n->type); n->type = new_type; } return NULL; } void f_reverse(INT32 args) { if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("reverse", 1); switch(sp[-args].type) { case T_STRING: { INT32 e; struct pike_string *s; s=begin_wide_shared_string(sp[-args].u.string->len, sp[-args].u.string->size_shift); switch(sp[-args].u.string->size_shift) { case 0: for(e=0;e<sp[-args].u.string->len;e++) STR0(s)[e]=STR0(sp[-args].u.string)[sp[-args].u.string->len-1-e]; break; case 1: for(e=0;e<sp[-args].u.string->len;e++) STR1(s)[e]=STR1(sp[-args].u.string)[sp[-args].u.string->len-1-e]; break; case 2: for(e=0;e<sp[-args].u.string->len;e++) STR2(s)[e]=STR2(sp[-args].u.string)[sp[-args].u.string->len-1-e]; break; } s=low_end_shared_string(s); pop_n_elems(args); push_string(s); break; } case T_INT: { INT32 e; e=sp[-args].u.integer; e=((e & 0x55555555UL)<<1) + ((e & 0xaaaaaaaaUL)>>1); e=((e & 0x33333333UL)<<2) + ((e & 0xccccccccUL)>>2); e=((e & 0x0f0f0f0fUL)<<4) + ((e & 0xf0f0f0f0UL)>>4); e=((e & 0x00ff00ffUL)<<8) + ((e & 0xff00ff00UL)>>8); e=((e & 0x0000ffffUL)<<16)+ ((e & 0xffff0000UL)>>16); sp[-args].u.integer=e; pop_n_elems(args-1); break; } case T_ARRAY: { struct array *a; a=reverse_array(sp[-args].u.array); pop_n_elems(args); push_array(a); break; } default: SIMPLE_BAD_ARG_ERROR("reverse", 1, "string|int|array"); } } struct tupel { int prefix; struct pike_string *ind; struct pike_string *val; }; static int replace_sortfun(struct tupel *a,struct tupel *b) { return my_quick_strcmp(a->ind,b->ind); } /* Magic, magic and more magic */ static int find_longest_prefix(char *str, INT32 len, int size_shift, struct tupel *v, INT32 a, INT32 b) { INT32 tmp,c,match=-1; while(a<b) { c=(a+b)/2; tmp=generic_quick_binary_strcmp(v[c].ind->str, v[c].ind->len, v[c].ind->size_shift, str, MINIMUM(len,v[c].ind->len), size_shift); if(tmp<0) { INT32 match2=find_longest_prefix(str, len, size_shift, v, c+1, b); if(match2!=-1) return match2; while(1) { if(v[c].prefix==-2) { v[c].prefix=find_longest_prefix(v[c].ind->str, v[c].ind->len, v[c].ind->size_shift, v, 0 /* can this be optimized? */, c); } c=v[c].prefix; if(c<a || c<match) return match; if(!generic_quick_binary_strcmp(v[c].ind->str, v[c].ind->len, v[c].ind->size_shift, str, MINIMUM(len,v[c].ind->len), size_shift)) return c; } } else if(tmp>0) { b=c; } else { a=c+1; /* There might still be a better match... */ match=c; } } return match; } static struct pike_string * replace_many(struct pike_string *str, struct array *from, struct array *to) { INT32 s,length,e,num; struct string_builder ret; struct tupel *v; int set_start[256]; int set_end[256]; if(from->size != to->size) error("Replace must have equal-sized from and to arrays.\n"); if(!from->size) { reference_shared_string(str); return str; } v=(struct tupel *)xalloc(sizeof(struct tupel)*from->size); for(num=e=0;e<from->size;e++) { if(ITEM(from)[e].type != T_STRING) { free((char *)v); error("Replace: from array is not array(string)\n"); } if(ITEM(to)[e].type != T_STRING) { free((char *)v); error("Replace: to array is not array(string)\n"); } if(ITEM(from)[e].u.string->size_shift > str->size_shift) continue; v[num].ind=ITEM(from)[e].u.string; v[num].val=ITEM(to)[e].u.string; v[num].prefix=-2; /* Uninitialized */ num++; } fsort((char *)v,num,sizeof(struct tupel),(fsortfun)replace_sortfun); for(e=0;e<(INT32)NELEM(set_end);e++) set_end[e]=set_start[e]=0; for(e=0;e<num;e++) { INT32 x; x=index_shared_string(v[num-1-e].ind,0); if(x<(INT32)NELEM(set_start)) set_start[x]=num-e-1; x=index_shared_string(v[e].ind,0); if(x<(INT32)NELEM(set_end)) set_end[x]=e+1; } init_string_builder(&ret,str->size_shift); length=str->len; for(s=0;length > 0;) { INT32 a,b,ch; ch=index_shared_string(str,s); if(ch<(INT32)NELEM(set_end)) b=set_end[ch]; else b=num; if(b) { if(ch<(INT32)NELEM(set_start)) a=set_start[ch]; else a=0; a=find_longest_prefix(str->str+(s << str->size_shift), length, str->size_shift, v, a, b); if(a!=-1) { ch=v[a].ind->len; if(!ch) ch=1; s+=ch; length-=ch; string_builder_shared_strcat(&ret,v[a].val); continue; } } string_builder_putchar(&ret, ch); s++; length--; } free((char *)v); return finish_string_builder(&ret); } void f_replace(INT32 args) { if(args < 3) SIMPLE_TOO_FEW_ARGS_ERROR("replace", 3); switch(sp[-args].type) { case T_ARRAY: { array_replace(sp[-args].u.array,sp+1-args,sp+2-args); pop_n_elems(args-1); break; } case T_MAPPING: { mapping_replace(sp[-args].u.mapping,sp+1-args,sp+2-args); pop_n_elems(args-1); break; } case T_STRING: { struct pike_string *s; switch(sp[1-args].type) { default: SIMPLE_BAD_ARG_ERROR("replace", 2, "string|array"); case T_STRING: if(sp[2-args].type != T_STRING) SIMPLE_BAD_ARG_ERROR("replace", 3, "string"); s=string_replace(sp[-args].u.string, sp[1-args].u.string, sp[2-args].u.string); break; case T_ARRAY: if(sp[2-args].type != T_ARRAY) SIMPLE_BAD_ARG_ERROR("replace", 3, "array"); s=replace_many(sp[-args].u.string, sp[1-args].u.array, sp[2-args].u.array); } pop_n_elems(args); push_string(s); break; } default: SIMPLE_BAD_ARG_ERROR("replace", 1, "array|mapping|string"); } } void f_compile(INT32 args) { struct program *p; if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("compile", 1); if(sp[-args].type != T_STRING) SIMPLE_BAD_ARG_ERROR("compile", 1, "string"); if ((args > 1) && (sp[1-args].type != T_OBJECT) && (sp[1-args].type != T_INT)) { SIMPLE_BAD_ARG_ERROR("compile", 2, "object"); } if ((args > 1) && (sp[1-args].type == T_OBJECT)) { p = compile(sp[-args].u.string, sp[1-args].u.object); } else { p = compile(sp[-args].u.string, NULL); } #ifdef PIKE_DEBUG if(!(p->flags & PROGRAM_FINISHED)) fatal("Got unfinished program from internal compile().\n"); #endif pop_n_elems(args); push_program(p); } void f_mkmapping(INT32 args) { struct mapping *m; struct array *a,*b; get_all_args("mkmapping",args,"%a%a",&a,&b); if(a->size != b->size) bad_arg_error("mkmapping", sp-args, args, 2, "array", sp+1-args, "mkmapping called on arrays of different sizes (%d != %d)\n", a->size, b->size); m=mkmapping(sp[-args].u.array, sp[1-args].u.array); pop_n_elems(args); push_mapping(m); } void f_mkmultiset(INT32 args) { struct multiset *m; struct array *a; get_all_args("mkmultiset",args,"%a",&a); m=mkmultiset(sp[-args].u.array); pop_n_elems(args); push_multiset(m); } #define SETFLAG(FLAGS,FLAG,ONOFF) \ FLAGS = (FLAGS & ~FLAG) | ( ONOFF ? FLAG : 0 ) void f_set_weak_flag(INT32 args) { struct svalue *s; INT_TYPE ret; get_all_args("set_weak_flag",args,"%*%i",&s,&ret); switch(s->type) { case T_ARRAY: SETFLAG(s->u.array->flags,ARRAY_WEAK_FLAG,ret); break; case T_MAPPING: SETFLAG(s->u.mapping->flags,MAPPING_FLAG_WEAK,ret); break; case T_MULTISET: SETFLAG(s->u.multiset->ind->flags,(ARRAY_WEAK_FLAG|ARRAY_WEAK_SHRINK),ret); break; default: SIMPLE_BAD_ARG_ERROR("set_weak_flag",1,"array|mapping|multiset"); } pop_n_elems(args-1); } void f_objectp(INT32 args) { if(args<1) SIMPLE_TOO_FEW_ARGS_ERROR("objectp", 1); if(sp[-args].type != T_OBJECT || !sp[-args].u.object->prog #ifdef AUTO_BIGNUM || is_bignum_object(sp[-args].u.object) #endif ) { pop_n_elems(args); push_int(0); }else{ pop_n_elems(args); push_int(1); } } void f_functionp(INT32 args) { if(args<1) SIMPLE_TOO_FEW_ARGS_ERROR("functionp", 1); if(sp[-args].type != T_FUNCTION || (sp[-args].subtype != FUNCTION_BUILTIN && !sp[-args].u.object->prog)) { pop_n_elems(args); push_int(0); }else{ pop_n_elems(args); push_int(1); } } #ifndef HAVE_AND_USE_POLL #undef HAVE_POLL #endif void f_sleep(INT32 args) { #define POLL_SLEEP_LIMIT 0.02 #ifdef HAVE_GETHRTIME hrtime_t t0,tv; #else struct timeval t0,tv; #endif double delay=0.0; double target; int do_microsleep; #ifdef HAVE_GETHRTIME t0=tv=gethrtime(); #define GET_TIME_ELAPSED tv=gethrtime() #define TIME_ELAPSED (tv-t0)*1e-9 #else GETTIMEOFDAY(&t0); tv=t0; #define GET_TIME_ELAPSED GETTIMEOFDAY(&tv) #define TIME_ELAPSED ((tv.tv_sec-t0.tv_sec) + (tv.tv_usec-t0.tv_usec)*1e-6) #endif #define FIX_LEFT() \ GET_TIME_ELAPSED; \ left = delay - TIME_ELAPSED; \ if (do_microsleep) left-=POLL_SLEEP_LIMIT; switch(sp[-args].type) { case T_INT: delay=(double)sp[-args].u.integer; break; case T_FLOAT: delay=(double)sp[-args].u.float_number; break; } /* Special case, sleep(0) means 'yield' */ if(delay == 0.0) { check_threads_etc(); pop_n_elems(args); return; } do_microsleep=delay<10; pop_n_elems(args); if (delay>POLL_SLEEP_LIMIT) { while(1) { double left; /* THREADS_ALLOW may take longer time then POLL_SLEEP_LIMIT */ THREADS_ALLOW(); FIX_LEFT(); if(left<=0.0) break; #ifdef __NT__ Sleep((int)(left*1000)); #elif defined(HAVE_POLL) poll(NULL,0,(int)(left*1000)); #else { struct timeval t3; t3.tv_sec=left; t3.tv_usec=(int)((left - (int)left)*1e6); select(0,0,0,0,&t3); } #endif THREADS_DISALLOW(); FIX_LEFT(); if(left<=0.0) { break; }else{ check_signals(0,0,0); } } } if (do_microsleep) while (delay>TIME_ELAPSED) GET_TIME_ELAPSED; } void f_gc(INT32 args) { INT32 tmp; pop_n_elems(args); tmp=num_objects; do_gc(); push_int(tmp - num_objects); } #ifdef TYPEP #undef TYPEP #endif #ifdef AUTO_BIGNUM /* This should probably be here weather AUTO_BIGNUM is defined or not, * but it can wait a little. /Hubbe */ #define TYPEP(ID,NAME,TYPE,TYPE_NAME) \ void ID(INT32 args) \ { \ int t; \ if(args<1) \ SIMPLE_TOO_FEW_ARGS_ERROR(NAME, 1); \ if(sp[-args].type == T_OBJECT && sp[-args].u.object->prog) \ { \ int fun=FIND_LFUN(sp[-args].u.object->prog,LFUN__IS_TYPE); \ if(fun != -1) \ { \ push_constant_text(TYPE_NAME); \ apply_low(sp[-args-1].u.object,fun,1); \ stack_unlink(args); \ return; \ } \ } \ t=sp[-args].type == TYPE; \ pop_n_elems(args); \ push_int(t); \ } #else #define TYPEP(ID,NAME,TYPE) \ void ID(INT32 args) \ { \ int t; \ if(args<1) SIMPLE_TOO_FEW_ARGS_ERROR(NAME, 1); \ t=sp[-args].type == TYPE; \ pop_n_elems(args); \ push_int(t); \ } #endif /* AUTO_BIGNUM */ void f_programp(INT32 args) { if(args<1) SIMPLE_TOO_FEW_ARGS_ERROR("programp", 1); switch(sp[-args].type) { case T_PROGRAM: pop_n_elems(args); push_int(1); return; case T_FUNCTION: if(program_from_function(sp-args)) { pop_n_elems(args); push_int(1); return; } default: pop_n_elems(args); push_int(0); } } #ifdef AUTO_BIGNUM TYPEP(f_intp, "intp", T_INT, "int") TYPEP(f_mappingp, "mappingp", T_MAPPING, "mapping") TYPEP(f_arrayp, "arrayp", T_ARRAY, "array") TYPEP(f_multisetp, "multisetp", T_MULTISET, "multiset") TYPEP(f_stringp, "stringp", T_STRING, "string") TYPEP(f_floatp, "floatp", T_FLOAT, "float") #else TYPEP(f_intp, "intp", T_INT) TYPEP(f_mappingp, "mappingp", T_MAPPING) TYPEP(f_arrayp, "arrayp", T_ARRAY) TYPEP(f_multisetp, "multisetp", T_MULTISET) TYPEP(f_stringp, "stringp", T_STRING) TYPEP(f_floatp, "floatp", T_FLOAT) #endif /* AUTO_BIGNUM */ void f_sort(INT32 args) { INT32 e,*order; if(args < 1) SIMPLE_TOO_FEW_ARGS_ERROR("sort", 1); for(e=0;e<args;e++) { if(sp[e-args].type != T_ARRAY) SIMPLE_BAD_ARG_ERROR("sort", e+1, "array"); if(sp[e-args].u.array->size != sp[-args].u.array->size) bad_arg_error("sort", sp-args, args, e+1, "array", sp+e-args, "Argument %d has wrong size.\n", (e+1)); } if(args > 1) { order=get_alpha_order(sp[-args].u.array); for(e=0;e<args;e++) order_array(sp[e-args].u.array,order); free((char *)order); pop_n_elems(args-1); } else { sort_array_destructively(sp[-args].u.array); } } void f_rows(INT32 args) { INT32 e; struct array *a,*tmp; struct svalue *val; get_all_args("rows", args, "%*%a", &val, &tmp); /* Optimization */ if(tmp->refs == 1) { struct svalue sval; tmp->type_field = BIT_MIXED | BIT_UNFINISHED; for(e=0;e<tmp->size;e++) { index_no_free(&sval, val, ITEM(tmp)+e); free_svalue(ITEM(tmp)+e); ITEM(tmp)[e]=sval; } stack_swap(); pop_stack(); return; } push_array(a=allocate_array(tmp->size)); for(e=0;e<a->size;e++) index_no_free(ITEM(a)+e, val, ITEM(tmp)+e); sp--; dmalloc_touch_svalue(sp); pop_n_elems(args); push_array(a); } void f_column(INT32 args) { INT32 e; struct array *a,*tmp; struct svalue *val; DECLARE_CYCLIC(); get_all_args("column", args, "%a%*", &tmp, &val); /* Optimization */ if(tmp->refs == 1) { /* An array with one ref cannot possibly be cyclic */ struct svalue sval; tmp->type_field = BIT_MIXED | BIT_UNFINISHED; for(e=0;e<tmp->size;e++) { index_no_free(&sval, ITEM(tmp)+e, val); free_svalue(ITEM(tmp)+e); ITEM(tmp)[e]=sval; } pop_stack(); return; } if((a=(struct array *)BEGIN_CYCLIC(tmp,0))) { pop_n_elems(args); ref_push_array(a); }else{ push_array(a=allocate_array(tmp->size)); SET_CYCLIC_RET(a); for(e=0;e<a->size;e++) index_no_free(ITEM(a)+e, ITEM(tmp)+e, val); END_CYCLIC(); sp--; dmalloc_touch_svalue(sp); pop_n_elems(args); push_array(a); } } #ifdef PIKE_DEBUG void f__verify_internals(INT32 args) { INT32 tmp=d_flag; CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("_verify_internals: permission denied.\n")); d_flag=0x7fffffff; do_debug(); d_flag=tmp; do_gc(); pop_n_elems(args); } void f__debug(INT32 args) { INT_TYPE d; CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("_debug: permission denied.\n")); get_all_args("_debug", args, "%i", &d); pop_n_elems(args); push_int(d_flag); d_flag = d; } void f__optimizer_debug(INT32 args) { INT_TYPE l; CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("_optimizer_debug: permission denied.\n")); get_all_args("_optimizer_debug", args, "%i", &l); pop_n_elems(args); push_int(l_flag); l_flag = l; } #ifdef YYDEBUG void f__compiler_trace(INT32 args) { extern int yydebug; INT_TYPE yyd; CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("_compiler_trace: permission denied.\n")); get_all_args("_compiler_trace", args, "%i", &yyd); pop_n_elems(args); push_int(yydebug); yydebug = yyd; } #endif /* YYDEBUG */ #endif #if defined(HAVE_LOCALTIME) || defined(HAVE_GMTIME) static void encode_struct_tm(struct tm *tm) { push_string(make_shared_string("sec")); push_int(tm->tm_sec); push_string(make_shared_string("min")); push_int(tm->tm_min); push_string(make_shared_string("hour")); push_int(tm->tm_hour); push_string(make_shared_string("mday")); push_int(tm->tm_mday); push_string(make_shared_string("mon")); push_int(tm->tm_mon); push_string(make_shared_string("year")); push_int(tm->tm_year); push_string(make_shared_string("wday")); push_int(tm->tm_wday); push_string(make_shared_string("yday")); push_int(tm->tm_yday); push_string(make_shared_string("isdst")); push_int(tm->tm_isdst); } #endif #ifdef HAVE_GMTIME void f_gmtime(INT32 args) { struct tm *tm; INT_TYPE tt; time_t t; get_all_args("gmtime", args, "%i", &tt); t = tt; tm = gmtime(&t); pop_n_elems(args); encode_struct_tm(tm); push_string(make_shared_string("timezone")); push_int(0); f_aggregate_mapping(20); } #endif #ifdef HAVE_LOCALTIME void f_localtime(INT32 args) { struct tm *tm; INT_TYPE tt; time_t t; get_all_args("localtime", args, "%i", &tt); t = tt; tm = localtime(&t); pop_n_elems(args); encode_struct_tm(tm); #ifdef HAVE_EXTERNAL_TIMEZONE push_string(make_shared_string("timezone")); push_int(timezone); f_aggregate_mapping(20); #else #ifdef STRUCT_TM_HAS_GMTOFF push_string(make_shared_string("timezone")); push_int(tm->tm_gmtoff); f_aggregate_mapping(20); #else f_aggregate_mapping(18); #endif #endif } #endif #ifdef HAVE_MKTIME static void f_mktime (INT32 args) { INT_TYPE sec, min, hour, mday, mon, year, isdst; struct tm date; struct svalue s; struct svalue * r; int retval; if (args<1) SIMPLE_TOO_FEW_ARGS_ERROR("mktime", 1); if(args == 1) { MEMSET(&date, 0, sizeof(date)); push_text("sec"); push_text("min"); push_text("hour"); push_text("mday"); push_text("mon"); push_text("year"); push_text("isdst"); push_text("timezone"); f_aggregate(8); f_rows(2); sp--; dmalloc_touch_svalue(sp); push_array_items(sp->u.array); args=8; } get_all_args("mktime",args, "%i%i%i%i%i%i", &sec, &min, &hour, &mday, &mon, &year); MEMSET(&date, 0, sizeof(date)); date.tm_sec=sec; date.tm_min=min; date.tm_hour=hour; date.tm_mday=mday; date.tm_mon=mon; date.tm_year=year; if ((args > 6) && (sp[6-args].subtype == NUMBER_NUMBER)) { date.tm_isdst = sp[6-args].u.integer; } else { date.tm_isdst = -1; } #if STRUCT_TM_HAS_GMTOFF if((args > 7) && (sp[7-args].subtype == NUMBER_NUMBER)) { date.tm_gmtoff=sp[7-args].u.intger; }else{ time_t tmp = 0; data.tm_gmtoff=localtime(&tmp).tm_gmtoff; } retval=mktime(&date); #else #ifdef HAVE_EXTERNAL_TIMEZONE if((args > 7) && (sp[7-args].subtype == NUMBER_NUMBER)) { retval=mktime(&date) + sp[7-args].u.integer - timezone; }else{ retval=mktime(&date); } #else retval=mktime(&date); #endif #endif if (retval == -1) PIKE_ERROR("mktime", "Cannot convert.\n", sp, args); pop_n_elems(args); push_int(retval); } #endif /* Parse a sprintf/sscanf-style format string */ static int low_parse_format(p_wchar0 *s, int slen) { int i; int offset = 0; int num_percent_percent = 0; struct svalue *old_sp = sp; for (i=offset; i < slen; i++) { if (s[i] == '%') { int j; if (i != offset) { push_string(make_shared_binary_string0(s + offset, i)); if ((sp != old_sp+1) && (sp[-2].type == T_STRING)) { /* Concat. */ f_add(2); } } for (j = i+1;j<slen;j++) { int c = s[j]; switch(c) { /* Flags */ case '!': case '#': case '$': case '-': case '/': case '0': case '=': case '>': case '@': case '^': case '_': case '|': continue; /* Padding */ case ' ': case '\'': case '+': case '~': break; /* Attributes */ case '.': case ':': case ';': continue; /* Attribute value */ case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': continue; /* Specials */ case '%': push_constant_text("%"); if ((sp != old_sp+1) && (sp[-2].type == T_STRING)) { /* Concat. */ f_add(2); } break; case '{': i = j + 1 + low_parse_format(s + j + 1, slen - (j+1)); f_aggregate(1); if ((i + 2 >= slen) || (s[i] != '%') || (s[i+1] != '}')) { error("parse_format(): Expected %%}.\n"); } i += 2; break; case '}': f_aggregate(sp - old_sp); return i; /* Set */ case '[': break; /* Argument */ default: break; } break; } if (j == slen) { error("parse_format(): Unterminated %%-expression.\n"); } offset = i = j; } } if (i != offset) { push_string(make_shared_binary_string0(s + offset, i)); if ((sp != old_sp+1) && (sp[-2].type == T_STRING)) { /* Concat. */ f_add(2); } } f_aggregate(sp - old_sp); return i; } static void f_parse_format(INT32 args) { struct pike_string *s = NULL; struct array *a; int len; get_all_args("parse_format", args, "%W", &s); len = low_parse_format(STR0(s), s->len); if (len != s->len) { error("parse_format(): Unexpected %%} in format string at offset %d\n", len); } #ifdef PIKE_DEBUG if (sp[-1].type != T_ARRAY) { fatal("parse_format(): Unexpected result from low_parse_format()\n"); } #endif /* PIKE_DEBUG */ a = (--sp)->u.array; debug_malloc_touch(a); pop_n_elems(args); push_array(a); } /* Check if the string s[0..len[ matches the glob m[0..mlen[ */ static int does_match(struct pike_string *s,int j, struct pike_string *m,int i) { for (; i<m->len; i++) { switch (index_shared_string(m,i)) { case '?': if(j++>=s->len) return 0; break; case '*': i++; if (i==m->len) return 1; /* slut */ for (;j<s->len;j++) if (does_match(s,j,m,i)) return 1; return 0; default: if(j>=s->len || index_shared_string(m,i)!=index_shared_string(s,j)) return 0; j++; } } return j==s->len; } void f_glob(INT32 args) { INT32 i,matches; struct array *a; struct svalue *sval, tmp; struct pike_string *glob; if(args < 2) SIMPLE_TOO_FEW_ARGS_ERROR("glob", 2); if(args > 2) pop_n_elems(args-2); args=2; if (sp[-args].type!=T_STRING) SIMPLE_BAD_ARG_ERROR("glob", 1, "string"); glob=sp[-args].u.string; switch(sp[1-args].type) { case T_STRING: i=does_match(sp[1-args].u.string,0,glob,0); pop_n_elems(2); push_int(i); break; case T_ARRAY: a=sp[1-args].u.array; matches=0; for(i=0;i<a->size;i++) { if(ITEM(a)[i].type != T_STRING) SIMPLE_BAD_ARG_ERROR("glob", 2, "string|array(string)"); if(does_match(ITEM(a)[i].u.string,0,glob,0)) { add_ref(ITEM(a)[i].u.string); push_string(ITEM(a)[i].u.string); matches++; } } f_aggregate(matches); tmp=sp[-1]; sp--; dmalloc_touch_svalue(sp); pop_n_elems(2); sp[0]=tmp; sp++; break; default: SIMPLE_BAD_ARG_ERROR("glob", 1, "string|array(string)"); } } /* comb_merge */ /* mixed interleave_array(array(mapping(int:mixed)) tab) */ static void f_interleave_array(INT32 args) { struct array *arr = NULL; struct array *min = NULL; struct array *order = NULL; int max = 0; int ok; int nelems = 0; int i; get_all_args("interleave_array", args, "%a", &arr); /* We're not interrested in any other arguments. */ pop_n_elems(args-1); if ((ok = arr->type_field & BIT_MAPPING) && (arr->type_field & ~BIT_MAPPING)) { /* Might be ok, but do some more checking... */ for(i = 0; i < arr->size; i++) { if (ITEM(arr)[i].type != T_MAPPING) { ok = 0; break; } } } if (!ok) { SIMPLE_BAD_ARG_ERROR("interleave_array", 1, "array(mapping(int:mixed))"); } /* The order array */ ref_push_array(arr); f_indices(1); order = sp[-1].u.array; /* The min array */ push_array(min = allocate_array(arr->size)); /* Initialize the min array */ for (i = 0; i < arr->size; i++) { struct mapping *m; /* e and k are used by MAPPING_LOOP() */ INT32 e; struct keypair *k; INT_TYPE low = 0x7fffffff; #ifdef PIKE_DEBUG if (ITEM(arr)[i].type != T_MAPPING) { error("interleave_array(): Element %d is not a mapping!\n", i); } #endif /* PIKE_DEBUG */ m = ITEM(arr)[i].u.mapping; MAPPING_LOOP(m) { if (k->ind.type != T_INT) { error("interleave_array(): Index not an integer in mapping %d!\n", i); } if (low > k->ind.u.integer) { low = k->ind.u.integer; if (low < 0) { error("interleave_array(): Index %d in mapping %d is negative!\n", low, i); } } if (max < k->ind.u.integer) { max = k->ind.u.integer; } nelems++; } /* FIXME: Is this needed? Isn't T_INT default? */ ITEM(min)[i].u.integer = low; } ref_push_array(order); f_sort(2); /* Sort the order array on the minimum index */ /* State on stack now: * * array(mapping(int:mixed)) arr * array(int) order * array(int) min (now sorted) */ /* Now we can start with the real work... */ { char *tab; int size; int minfree = 0; /* Initialize the lookup table */ max += 1; max *= 2; /* max will be the padding at the end. */ size = (nelems + max) * 8; /* Initial size */ if (!(tab = malloc(size + max))) { SIMPLE_OUT_OF_MEMORY_ERROR("interleave_array", size+max); } MEMSET(tab, 0, size + max); for (i = 0; i < order->size; i++) { int low = ITEM(min)[i].u.integer; int j = ITEM(order)[i].u.integer; int offset = 0; struct mapping *m; INT32 e; struct keypair *k; if (! m_sizeof(m = ITEM(arr)[j].u.mapping)) { /* Not available */ ITEM(min)[i].u.integer = -1; continue; } if (low < minfree) { offset = minfree - low; } else { minfree = offset; } ok = 0; while (!ok) { ok = 1; MAPPING_LOOP(m) { int ind = k->ind.u.integer; if (tab[offset + ind]) { ok = 0; while (tab[++offset + ind]) ; } } } MAPPING_LOOP(m) { tab[offset + k->ind.u.integer] = 1; } while(tab[minfree]) { minfree++; } ITEM(min)[i].u.integer = offset; /* Check need for realloc */ if (offset >= size) { char *newtab = realloc(tab, size*2 + max); if (!newtab) { free(tab); error("interleave_array(): Couldn't extend table!\n"); } tab = newtab; MEMSET(tab + size + max, 0, size); size = size * 2; } } free(tab); } /* We want these two to survive the stackpopping. */ add_ref(min); add_ref(order); pop_n_elems(3); /* Return value */ ref_push_array(min); /* Restore the order */ push_array(order); push_array(min); f_sort(2); pop_stack(); } /* longest_ordered_sequence */ static int find_gt(struct array *a, int i, int *stack, int top) { struct svalue *x = a->item + i; int l,h; if (!top || !is_lt(x, a->item + stack[top - 1])) return top; l = 0; h = top; while (l < h) { int middle = (l + h)/2; if (!is_gt(a->item + stack[middle], x)) { l = middle+1; } else { h = middle; } } return l; } static struct array *longest_ordered_sequence(struct array *a) { int *stack; int *links; int i,j,top=0,l=0,ltop=-1; struct array *res; ONERROR tmp; ONERROR tmp2; if(!a->size) return allocate_array(0); stack = malloc(sizeof(int)*a->size); links = malloc(sizeof(int)*a->size); if (!stack || !links) { if (stack) free(stack); if (links) free(links); return 0; } /* is_gt(), is_lt() and low_allocate_array() can generate errors. */ SET_ONERROR(tmp, free, stack); SET_ONERROR(tmp2, free, links); for (i=0; i<a->size; i++) { int pos; pos = find_gt(a, i, stack, top); if (pos == top) { top++; ltop = i; } if (pos != 0) links[i] = stack[pos-1]; else links[i] = -1; stack[pos] = i; } /* FIXME(?) memory unfreed upon error here */ res = low_allocate_array(top, 0); while (ltop != -1) { res->item[--top].u.integer = ltop; ltop = links[ltop]; } UNSET_ONERROR(tmp2); UNSET_ONERROR(tmp); free(stack); free(links); return res; } static void f_longest_ordered_sequence(INT32 args) { struct array *a = NULL; get_all_args("Array.longest_ordered_sequence", args, "%a", &a); /* THREADS_ALLOW(); */ a = longest_ordered_sequence(a); /* THREADS_DISALLOW(); */ if (!a) { SIMPLE_OUT_OF_MEMORY_ERROR("Array.longest_ordered_sequence", (int)sizeof(int *)*a->size*2); } pop_n_elems(args); push_array(a); } /**** diff ************************************************************/ static struct array* diff_compare_table(struct array *a,struct array *b,int *u) { struct array *res; struct mapping *map; struct svalue *pval; int i; if (u) { *u = 0; /* Unique rows in array b */ } map=allocate_mapping(256); push_mapping(map); /* in case of out of memory */ for (i=0; i<b->size; i++) { pval=low_mapping_lookup(map,b->item+i); if (!pval) { struct svalue val; val.type=T_ARRAY; val.u.array=low_allocate_array(1,1); val.u.array->item[0].type=T_INT; val.u.array->item[0].subtype=NUMBER_NUMBER; val.u.array->item[0].u.integer=i; mapping_insert(map,b->item+i,&val); free_svalue(&val); if (u) { (*u)++; } } else { pval->u.array=resize_array(pval->u.array,pval->u.array->size+1); pval->u.array->item[pval->u.array->size-1].type=T_INT; pval->u.array->item[pval->u.array->size-1].subtype=NUMBER_NUMBER; pval->u.array->item[pval->u.array->size-1].u.integer=i; } } res=low_allocate_array(a->size,0); for (i=0; i<a->size; i++) { pval=low_mapping_lookup(map,a->item+i); if (!pval) { res->item[i].type=T_ARRAY; add_ref(res->item[i].u.array=&empty_array); } else { assign_svalue(res->item+i,pval); } } pop_stack(); return res; } struct diff_magic_link { int x; int refs; struct diff_magic_link *prev; }; struct diff_magic_link_pool { struct diff_magic_link *firstfree; struct diff_magic_link_pool *next; int firstfreenum; struct diff_magic_link dml[1]; }; struct diff_magic_link_head { unsigned int depth; struct diff_magic_link *link; }; #define DMLPOOLSIZE 16384 static int dmls=0; static INLINE struct diff_magic_link_pool* dml_new_pool(struct diff_magic_link_pool **pools) { struct diff_magic_link_pool *new; new=malloc(sizeof(struct diff_magic_link_pool)+ sizeof(struct diff_magic_link)*DMLPOOLSIZE); if (!new) return NULL; /* fail */ new->firstfreenum=0; new->firstfree=NULL; new->next=*pools; *pools=new; return *pools; } static INLINE struct diff_magic_link* dml_new(struct diff_magic_link_pool **pools) { struct diff_magic_link *new; struct diff_magic_link_pool *pool; dmls++; if ( *pools && (new=(*pools)->firstfree) ) { (*pools)->firstfree=new->prev; new->prev=NULL; return new; } pool=*pools; while (pool) { if (pool->firstfreenum<DMLPOOLSIZE) return pool->dml+(pool->firstfreenum++); pool=pool->next; } if ( (pool=dml_new_pool(pools)) ) { pool->firstfreenum=1; return pool->dml; } return NULL; } static INLINE void dml_free_pools(struct diff_magic_link_pool *pools) { struct diff_magic_link_pool *pool; while (pools) { pool=pools->next; free(pools); pools=pool; } } static INLINE void dml_delete(struct diff_magic_link_pool *pools, struct diff_magic_link *dml) { if (dml->prev && !--dml->prev->refs) dml_delete(pools,dml->prev); dmls--; dml->prev=pools->firstfree; pools->firstfree=dml; } static INLINE int diff_ponder_stack(int x, struct diff_magic_link **dml, int top) { int middle,a,b; a=0; b=top; while (b>a) { middle=(a+b)/2; if (dml[middle]->x<x) a=middle+1; else if (dml[middle]->x>x) b=middle; else return middle; } if (a<top && dml[a]->x<x) a++; return a; } static INLINE int diff_ponder_array(int x, struct svalue *arr, int top) { int middle,a,b; a=0; b=top; while (b>a) { middle=(a+b)/2; if (arr[middle].u.integer<x) a=middle+1; else if (arr[middle].u.integer>x) b=middle; else return middle; } if (a<top && arr[a].u.integer<x) a++; return a; } /* * The Grubba-Mirar Longest Common Sequence algorithm. * * This algorithm is O((Na * Nb / K)*lg(Na * Nb / K)), where: * * Na == sizeof(a) * Nb == sizeof(b) * K == sizeof(correlation(a,b)) * * For binary data: * K == 256 => O(Na * Nb * lg(Na * Nb)), * Na ~= Nb ~= N => O(N² * lg(N)) * * For ascii data: * K ~= C * min(Na, Nb), C constant => O(max(Na, Nb)*lg(max(Na,Nb))), * Na ~= Nb ~= N => O(N * lg(N)) * * diff_longest_sequence() takes two arguments: * cmptbl == diff_compare_table(a, b) * blen == sizeof(b) >= max(@(cmptbl*({}))) */ static struct array *diff_longest_sequence(struct array *cmptbl, int blen) { int i,j,top=0,lsize=0; struct array *a; struct diff_magic_link_pool *pools=NULL; struct diff_magic_link *dml; struct diff_magic_link **stack; char *marks; if(!cmptbl->size) return allocate_array(0); stack = malloc(sizeof(struct diff_magic_link*)*cmptbl->size); if (!stack) { int args = 0; SIMPLE_OUT_OF_MEMORY_ERROR("diff_longest_sequence", (int)sizeof(struct diff_magic_link*) * cmptbl->size); } /* NB: marks is used for optimization purposes only */ marks = calloc(blen, 1); if (!marks && blen) { int args = 0; free(stack); SIMPLE_OUT_OF_MEMORY_ERROR("diff_longest_sequence", blen); } #ifdef DIFF_DEBUG fprintf(stderr, "\n\nDIFF: sizeof(cmptbl)=%d, blen=%d\n", cmptbl->size, blen); #endif /* DIFF_DEBUG */ for (i = 0; i<cmptbl->size; i++) { struct svalue *inner=cmptbl->item[i].u.array->item; #ifdef DIFF_DEBUG fprintf(stderr, "DIFF: i=%d\n", i); #endif /* DIFF_DEBUG */ for (j = cmptbl->item[i].u.array->size; j--;) { int x = inner[j].u.integer; #ifdef DIFF_DEBUG fprintf(stderr, "DIFF: j=%d, x=%d\n", j, x); #endif /* DIFF_DEBUG */ #ifdef PIKE_DEBUG if (x >= blen) { fatal("diff_longest_sequence(): x:%d >= blen:%d\n", x, blen); } else if (x < 0) { fatal("diff_longest_sequence(): x:%d < 0\n", x); } #endif /* PIKE_DEBUG */ if (!marks[x]) { int pos; if (top && x<=stack[top-1]->x) { /* Find the insertion point. */ pos = diff_ponder_stack(x, stack, top); if (pos != top) { /* Not on the stack anymore. */ marks[stack[pos]->x] = 0; } } else pos=top; #ifdef DIFF_DEBUG fprintf(stderr, "DIFF: pos=%d\n", pos); #endif /* DIFF_DEBUG */ /* This part is only optimization (j accelleration). */ if (pos && j) { if (!marks[inner[j-1].u.integer]) { /* Find the element to insert. */ j = diff_ponder_array(stack[pos-1]->x+1, inner, j); x = inner[j].u.integer; } } else { j = 0; x = inner->u.integer; } #ifdef DIFF_DEBUG fprintf(stderr, "DIFF: New j=%d, x=%d\n", j, x); #endif /* DIFF_DEBUG */ #ifdef PIKE_DEBUG if (x >= blen) { fatal("diff_longest_sequence(): x:%d >= blen:%d\n", x, blen); } else if (x < 0) { fatal("diff_longest_sequence(): x:%d < 0\n", x); } #endif /* PIKE_DEBUG */ /* Put x on the stack. */ marks[x] = 1; if (pos == top) { #ifdef DIFF_DEBUG fprintf(stderr, "DIFF: New top element\n"); #endif /* DIFF_DEBUG */ if (! (dml=dml_new(&pools)) ) { int args = 0; dml_free_pools(pools); free(stack); SIMPLE_OUT_OF_MEMORY_ERROR("diff_longest_sequence", sizeof(struct diff_magic_link_pool) + sizeof(struct diff_magic_link) * DMLPOOLSIZE); } dml->x = x; dml->refs = 1; if (pos) (dml->prev = stack[pos-1])->refs++; else dml->prev = NULL; top++; stack[pos] = dml; } else if (pos && stack[pos]->refs == 1 && stack[pos-1] == stack[pos]->prev) { #ifdef DIFF_DEBUG fprintf(stderr, "DIFF: Optimized case\n"); #endif /* DIFF_DEBUG */ /* Optimization. */ stack[pos]->x = x; } else { #ifdef DIFF_DEBUG fprintf(stderr, "DIFF: Generic case\n"); #endif /* DIFF_DEBUG */ if (! (dml=dml_new(&pools)) ) { int args = 0; dml_free_pools(pools); free(stack); SIMPLE_OUT_OF_MEMORY_ERROR("diff_longest_sequence", sizeof(struct diff_magic_link_pool) + sizeof(struct diff_magic_link) * DMLPOOLSIZE); } dml->x = x; dml->refs = 1; if (pos) (dml->prev = stack[pos-1])->refs++; else dml->prev = NULL; if (!--stack[pos]->refs) dml_delete(pools, stack[pos]); stack[pos] = dml; } #ifdef DIFF_DEBUG } else { fprintf(stderr, "DIFF: Already marked (%d)!\n", marks[x]); #endif /* DIFF_DEBUG */ } } #ifdef DIFF_DEBUG for(j=0; j < top; j++) { fprintf(stderr, "DIFF: stack:%d, mark:%d\n", stack[j]->x, marks[stack[j]->x]); } #endif /* DIFF_DEBUG */ } /* No need for marks anymore. */ free(marks); /* FIXME(?) memory unfreed upon error here. */ a=low_allocate_array(top,0); if (top) { dml=stack[top-1]; while (dml) { a->item[--top].u.integer=dml->x; dml=dml->prev; } } free(stack); dml_free_pools(pools); return a; } /* * The dynamic programming Longest Common Sequence algorithm. * * This algorithm is O(Na * Nb), where: * * Na == sizeof(a) * Nb == sizeof(b) * * This makes it faster than the G-M algorithm on binary data, * but slower on ascii data. * * NOT true! The G-M algorithm seems to be faster on most data anyway. * /grubba 1998-05-19 */ static struct array *diff_dyn_longest_sequence(struct array *cmptbl, int blen) { struct array *res = NULL; struct diff_magic_link_head *table = NULL; struct diff_magic_link_pool *dml_pool = NULL; struct diff_magic_link *dml; unsigned int sz = (unsigned int)cmptbl->size; unsigned int i; unsigned int off1 = 0; unsigned int off2 = blen + 1; unsigned int l1 = 0; unsigned int l2 = 0; table = calloc(sizeof(struct diff_magic_link_head)*2, off2); if (!table) { int args = 0; SIMPLE_OUT_OF_MEMORY_ERROR("diff_dyn_longest_sequence", sizeof(struct diff_magic_link_head) * 2 * off2); } /* FIXME: Assumes NULL is represented with all zeroes */ /* NOTE: Scan strings backwards to get the same result as the G-M * algorithm. */ for (i = sz; i--;) { struct array *boff = cmptbl->item[i].u.array; #ifdef DIFF_DEBUG fprintf(stderr, " i:%d\n", i); #endif /* DIFF_DEBUG */ if (boff->size) { unsigned int bi; unsigned int base = blen; unsigned int tmp = off1; off1 = off2; off2 = tmp; for (bi = boff->size; bi--;) { unsigned int ib = boff->item[bi].u.integer; #ifdef DIFF_DEBUG fprintf(stderr, " Range [%d - %d] differ\n", base - 1, ib + 1); #endif /* DIFF_DEBUG */ while ((--base) > ib) { /* Differ */ if (table[off1 + base].link) { if (!--(table[off1 + base].link->refs)) { dml_delete(dml_pool, table[off1 + base].link); } } /* FIXME: Should it be > or >= here to get the same result * as with the G-M algorithm? */ if (table[off2 + base].depth > table[off1 + base + 1].depth) { table[off1 + base].depth = table[off2 + base].depth; dml = (table[off1 + base].link = table[off2 + base].link); } else { table[off1 + base].depth = table[off1 + base + 1].depth; dml = (table[off1 + base].link = table[off1 + base + 1].link); } if (dml) { dml->refs++; } } /* Equal */ #ifdef DIFF_DEBUG fprintf(stderr, " Equal\n"); #endif /* DIFF_DEBUG */ if (table[off1 + ib].link) { if (!--(table[off1 + ib].link->refs)) { dml_delete(dml_pool, table[off1 + ib].link); } } table[off1 + ib].depth = table[off2 + ib + 1].depth + 1; dml = (table[off1 + ib].link = dml_new(&dml_pool)); if (!dml) { int args = 0; dml_free_pools(dml_pool); free(table); SIMPLE_OUT_OF_MEMORY_ERROR("diff_dyn_longest_sequence", sizeof(struct diff_magic_link_pool) + sizeof(struct diff_magic_link) * DMLPOOLSIZE); } dml->refs = 1; dml->prev = table[off2 + ib + 1].link; if (dml->prev) { dml->prev->refs++; } dml->x = ib; } #ifdef DIFF_DEBUG fprintf(stderr, " Range [0 - %d] differ\n", base-1); #endif /* DIFF_DEBUG */ while (base--) { /* Differ */ if (table[off1 + base].link) { if (!--(table[off1 + base].link->refs)) { dml_delete(dml_pool, table[off1 + base].link); } } /* FIXME: Should it be > or >= here to get the same result * as with the G-M algorithm? */ if (table[off2 + base].depth > table[off1 + base + 1].depth) { table[off1 + base].depth = table[off2 + base].depth; dml = (table[off1 + base].link = table[off2 + base].link); } else { table[off1 + base].depth = table[off1 + base + 1].depth; dml = (table[off1 + base].link = table[off1 + base + 1].link); } if (dml) { dml->refs++; } } } } /* Convert table into res */ sz = table[off1].depth; dml = table[off1].link; free(table); #ifdef DIFF_DEBUG fprintf(stderr, "Result array size:%d\n", sz); #endif /* DIFF_DEBUG */ res = allocate_array(sz); if (!res) { int args = 0; if (dml_pool) { dml_free_pools(dml_pool); } SIMPLE_OUT_OF_MEMORY_ERROR("diff_dyn_longest_sequence", sizeof(struct array) + sz*sizeof(struct svalue)); } i = 0; while(dml) { #ifdef PIKE_DEBUG if (i >= sz) { fatal("Consistency error in diff_dyn_longest_sequence()\n"); } #endif /* PIKE_DEBUG */ #ifdef DIFF_DEBUG fprintf(stderr, " %02d: %d\n", i, dml->x); #endif /* DIFF_DEBUG */ res->item[i].type = T_INT; res->item[i].subtype = 0; res->item[i].u.integer = dml->x; dml = dml->prev; i++; } #ifdef PIKE_DEBUG if (i != sz) { fatal("Consistency error in diff_dyn_longest_sequence()\n"); } #endif /* PIKE_DEBUG */ dml_free_pools(dml_pool); return(res); } static struct array* diff_build(struct array *a, struct array *b, struct array *seq) { struct array *ad,*bd; int bi,ai,lbi,lai,i,eqstart; /* FIXME(?) memory unfreed upon error here (and later) */ ad=low_allocate_array(0,32); bd=low_allocate_array(0,32); eqstart=0; lbi=bi=ai=-1; for (i=0; i<seq->size; i++) { bi=seq->item[i].u.integer; if (bi!=lbi+1 || !is_equal(a->item+ai+1,b->item+bi)) { /* insert the equality */ if (lbi>=eqstart) { push_array(friendly_slice_array(b,eqstart,lbi+1)); ad=append_array(ad,sp-1); bd=append_array(bd,sp-1); pop_stack(); } /* insert the difference */ lai=ai; ai=array_search(a,b->item+bi,ai+1)-1; push_array(friendly_slice_array(b,lbi+1,bi)); bd=append_array(bd, sp-1); pop_stack(); push_array(friendly_slice_array(a,lai+1,ai+1)); ad=append_array(ad,sp-1); pop_stack(); eqstart=bi; } ai++; lbi=bi; } if (lbi>=eqstart) { push_array(friendly_slice_array(b,eqstart,lbi+1)); ad=append_array(ad,sp-1); bd=append_array(bd,sp-1); pop_stack(); } if (b->size>bi+1 || a->size>ai+1) { push_array(friendly_slice_array(b,lbi+1,b->size)); bd=append_array(bd, sp-1); pop_stack(); push_array(friendly_slice_array(a,ai+1,a->size)); ad=append_array(ad,sp-1); pop_stack(); } push_array(ad); push_array(bd); return aggregate_array(2); } void f_diff(INT32 args) { struct array *seq; struct array *cmptbl; struct array *diff; int uniq; /* FIXME: Ought to use get_all_args() */ if (args<2) SIMPLE_TOO_FEW_ARGS_ERROR("diff", 2); if (sp[-args].type != T_ARRAY) SIMPLE_BAD_ARG_ERROR("diff", 1, "array"); if (sp[1-args].type != T_ARRAY) SIMPLE_BAD_ARG_ERROR("diff", 2, "array"); cmptbl = diff_compare_table(sp[-args].u.array, sp[1-args].u.array, &uniq); push_array(cmptbl); #ifdef ENABLE_DYN_DIFF if (uniq * 100 > sp[1-args].u.array->size) { #endif /* ENABLE_DYN_DIFF */ #ifdef DIFF_DEBUG fprintf(stderr, "diff: Using G-M algorithm, u:%d, s:%d\n", uniq, sp[1-args].u.array->size); #endif /* DIFF_DEBUG */ seq = diff_longest_sequence(cmptbl, sp[1-1-args].u.array->size); #ifdef ENABLE_DYN_DIFF } else { #ifdef DIFF_DEBUG fprintf(stderr, "diff: Using dyn algorithm, u:%d, s:%d\n", uniq, sp[1-args].u.array->size); #endif /* DIFF_DEBUG */ seq = diff_dyn_longest_sequence(cmptbl, sp[1-1-args].u.array->size); } #endif /* ENABLE_DYN_DIFF */ push_array(seq); diff=diff_build(sp[-2-args].u.array,sp[1-2-args].u.array,seq); pop_n_elems(2+args); push_array(diff); } void f_diff_compare_table(INT32 args) { struct array *a; struct array *b; struct array *cmptbl; get_all_args("diff_compare_table", args, "%a%a", &a, &b); cmptbl = diff_compare_table(a, b, NULL); pop_n_elems(args); push_array(cmptbl); } void f_diff_longest_sequence(INT32 args) { struct array *a; struct array *b; struct array *seq; struct array *cmptbl; get_all_args("diff_longest_sequence", args, "%a%a", &a, &b); cmptbl = diff_compare_table(a, b, NULL); push_array(cmptbl); seq = diff_longest_sequence(cmptbl, b->size); pop_n_elems(args+1); push_array(seq); } void f_diff_dyn_longest_sequence(INT32 args) { struct array *a; struct array *b; struct array *seq; struct array *cmptbl; get_all_args("diff_dyn_longest_sequence", args, "%a%a", &a, &b); cmptbl=diff_compare_table(a, b, NULL); push_array(cmptbl); seq = diff_dyn_longest_sequence(cmptbl, b->size); pop_n_elems(args+1); push_array(seq); } /**********************************************************************/ static struct callback_list memory_usage_callback; struct callback *add_memory_usage_callback(callback_func call, void *arg, callback_func free_func) { return add_to_callback(&memory_usage_callback, call, arg, free_func); } void f__memory_usage(INT32 args) { INT32 num,size; struct svalue *ss; pop_n_elems(args); ss=sp; count_memory_in_mappings(&num, &size); push_text("num_mappings"); push_int(num); push_text("mapping_bytes"); push_int(size); count_memory_in_strings(&num, &size); push_text("num_strings"); push_int(num); push_text("string_bytes"); push_int(size); count_memory_in_arrays(&num, &size); push_text("num_arrays"); push_int(num); push_text("array_bytes"); push_int(size); count_memory_in_programs(&num,&size); push_text("num_programs"); push_int(num); push_text("program_bytes"); push_int(size); count_memory_in_multisets(&num, &size); push_text("num_multisets"); push_int(num); push_text("multiset_bytes"); push_int(size); count_memory_in_objects(&num, &size); push_text("num_objects"); push_int(num); push_text("object_bytes"); push_int(size); count_memory_in_callbacks(&num, &size); push_text("num_callbacks"); push_int(num); push_text("callback_bytes"); push_int(size); count_memory_in_callables(&num, &size); push_text("num_callables"); push_int(num); push_text("callable_bytes"); push_int(size); count_memory_in_pike_frames(&num, &size); push_text("num_frames"); push_int(num); push_text("frame_bytes"); push_int(size); call_callback(&memory_usage_callback, (void *)0); f_aggregate_mapping(sp-ss); } void f__next(INT32 args) { struct svalue tmp; CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("_next: permission denied.\n")); if(!args) SIMPLE_TOO_FEW_ARGS_ERROR("_next", 1); pop_n_elems(args-1); args = 1; tmp=sp[-1]; switch(tmp.type) { case T_OBJECT: tmp.u.object=tmp.u.object->next; break; case T_ARRAY: tmp.u.array=tmp.u.array->next; break; case T_MAPPING: tmp.u.mapping=tmp.u.mapping->next; break; case T_MULTISET:tmp.u.multiset=tmp.u.multiset->next; break; case T_PROGRAM: tmp.u.program=tmp.u.program->next; break; case T_STRING: tmp.u.string=tmp.u.string->next; break; default: SIMPLE_BAD_ARG_ERROR("_next", 1, "object|array|mapping|multiset|program|string"); } if(tmp.u.refs) { assign_svalue(sp-1,&tmp); }else{ pop_stack(); push_int(0); } } void f__prev(INT32 args) { struct svalue tmp; CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("_prev: permission denied.\n")); if(!args) SIMPLE_TOO_FEW_ARGS_ERROR("_prev", 1); pop_n_elems(args-1); args = 1; tmp=sp[-1]; switch(tmp.type) { case T_OBJECT: tmp.u.object=tmp.u.object->prev; break; case T_ARRAY: tmp.u.array=tmp.u.array->prev; break; case T_MAPPING: tmp.u.mapping=tmp.u.mapping->prev; break; case T_MULTISET:tmp.u.multiset=tmp.u.multiset->prev; break; case T_PROGRAM: tmp.u.program=tmp.u.program->prev; break; default: SIMPLE_BAD_ARG_ERROR("_prev", 1, "object|array|mapping|multiset|program"); } if(tmp.u.refs) { assign_svalue(sp-1,&tmp); }else{ pop_stack(); push_int(0); } } void f__refs(INT32 args) { INT32 i; if(!args) SIMPLE_TOO_FEW_ARGS_ERROR("_refs", 1); if(sp[-args].type > MAX_REF_TYPE) SIMPLE_BAD_ARG_ERROR("refs", 1, "array|mapping|multiset|object|" "function|program|string"); i=sp[-args].u.refs[0]; pop_n_elems(args); push_int(i); } /* This function is for debugging *ONLY* * do not document please. /Hubbe */ void f__leak(INT32 args) { INT32 i; if(!args) SIMPLE_TOO_FEW_ARGS_ERROR("_leak", 1); if(sp[-args].type > MAX_REF_TYPE) SIMPLE_BAD_ARG_ERROR("_leak", 1, "array|mapping|multiset|object|" "function|program|string"); add_ref(sp[-args].u.array); i=sp[-args].u.refs[0]; pop_n_elems(args); push_int(i); } void f__typeof(INT32 args) { INT32 i; struct pike_string *s,*t; if(!args) SIMPLE_TOO_FEW_ARGS_ERROR("_typeof", 1); low_init_threads_disable(); s=get_type_of_svalue(sp-args); t=describe_type(s); exit_threads_disable(NULL); free_string(s); pop_n_elems(args); push_string(t); } void f_replace_master(INT32 args) { CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("replace_master: permission denied.\n")); if(!args) SIMPLE_TOO_FEW_ARGS_ERROR("replace_master", 1); if(sp[-args].type != T_OBJECT) SIMPLE_BAD_ARG_ERROR("replace_master", 1, "object"); if(!sp[-args].u.object->prog) bad_arg_error("replace_master", sp-args, args, 1, "object", sp-args, "Called with destructed object.\n"); free_object(master_object); master_object=sp[-args].u.object; add_ref(master_object); free_program(master_program); master_program=master_object->prog; add_ref(master_program); pop_n_elems(args); } void f_master(INT32 args) { pop_n_elems(args); ref_push_object(master()); } #ifdef HAVE_GETHRVTIME #include <sys/time.h> void f_gethrvtime(INT32 args) { pop_n_elems(args); push_int64(gethrvtime()/1000); } void f_gethrtime(INT32 args) { pop_n_elems(args); if(args) push_int64(gethrtime()); else push_int64(gethrtime()/1000); } #else void f_gethrtime(INT32 args) { struct timeval tv; pop_n_elems(args); GETTIMEOFDAY(&tv); #ifdef INT64 if(args) push_int64((((INT64)tv.tv_sec * 1000000) + tv.tv_usec)*1000); else push_int64(((INT64)tv.tv_sec * 1000000) + tv.tv_usec); #else /* !INT64 */ if(args) push_int64(((tv.tv_sec * 1000000) + tv.tv_usec)*1000); else push_int64((tv.tv_sec * 1000000) + tv.tv_usec); #endif /* INT64 */ } #endif /* HAVE_GETHRVTIME */ #ifdef PROFILING static void f_get_prof_info(INT32 args) { struct program *prog = 0; int num_functions; int i; if (!args) { SIMPLE_TOO_FEW_ARGS_ERROR("get_profiling_info", 1); } prog = program_from_svalue(sp-args); if(!prog) SIMPLE_BAD_ARG_ERROR("get_profiling_info", 1, "program|function|object"); /* ({ num_clones, ([ "fun_name":({ num_calls, total_time, self_time }) ]) }) */ pop_n_elems(args-1); args = 1; push_int(prog->num_clones); for(num_functions=i=0; i<(int)prog->num_identifiers; i++) { if (prog->identifiers[i].num_calls) { num_functions++; ref_push_string(prog->identifiers[i].name); push_int(prog->identifiers[i].num_calls); push_int(prog->identifiers[i].total_time); push_int(prog->identifiers[i].self_time); f_aggregate(3); } } f_aggregate_mapping(num_functions * 2); f_aggregate(2); stack_swap(); pop_stack(); } #endif /* PROFILING */ void f_object_variablep(INT32 args) { struct object *o; struct pike_string *s; int ret; get_all_args("variablep",args,"%o%S",&o, &s); if(!o->prog) bad_arg_error("variablep", sp-args, args, 1, "object", sp-args, "Called on destructed object.\n"); ret=find_shared_string_identifier(s,o->prog); if(ret!=-1) { ret=IDENTIFIER_IS_VARIABLE(ID_FROM_INT(o->prog, ret)->identifier_flags); }else{ ret=0; } pop_n_elems(args); push_int(!!ret); } void f_splice(INT32 args) { struct array *out; INT32 size=0x7fffffff; INT32 i,j,k; #ifdef PIKE_DEBUG if(args < 0) fatal("Negative args to f_splice()\n"); #endif for(i=0;i<args;i++) if (sp[i-args].type!=T_ARRAY) SIMPLE_BAD_ARG_ERROR("splice", i+1, "array"); else if (sp[i-args].u.array->size < size) size=sp[i-args].u.array->size; out=allocate_array(args * size); if (!args) { push_array(out); return; } out->type_field=0; for(i=-args; i<0; i++) out->type_field|=sp[i].u.array->type_field; for(k=j=0; j<size; j++) for(i=-args; i<0; i++) assign_svalue_no_free(out->item+(k++), sp[i].u.array->item+j); pop_n_elems(args); push_array(out); return; } void f_everynth(INT32 args) { INT32 k,n=2; INT32 start=0; struct array *a; struct array *ina; INT32 size=0; #ifdef PIKE_DEBUG if(args < 0) fatal("Negative args to f_everynth()\n"); #endif check_all_args("everynth", args, BIT_ARRAY, BIT_INT | BIT_VOID, BIT_INT | BIT_VOID , 0); switch(args) { default: case 3: start=sp[2-args].u.integer; if(start<0) bad_arg_error("everynth", sp-args, args, 3, "int", sp+2-args, "Argument negative.\n"); case 2: n=sp[1-args].u.integer; if(n<1) bad_arg_error("everynth", sp-args, args, 2, "int", sp+1-args, "Argument negative.\n"); case 1: ina=sp[-args].u.array; } a=allocate_array(((size=ina->size)-start+n-1)/n); for(k=0; start<size; start+=n) assign_svalue_no_free(a->item+(k++), ina->item+start); a->type_field=ina->type_field; pop_n_elems(args); push_array(a); return; } void f_transpose(INT32 args) { struct array *out; struct array *in; struct array *outinner; struct array *ininner; INT32 sizeininner=0,sizein=0; INT32 inner=0; INT32 j,i; TYPE_FIELD type=0; #ifdef PIKE_DEBUG if(args < 0) fatal("Negative args to f_transpose()\n"); #endif if (args<1) SIMPLE_TOO_FEW_ARGS_ERROR("transpose", 1); if (sp[-args].type!=T_ARRAY) SIMPLE_BAD_ARG_ERROR("transpose", 1, "array(array)"); in=sp[-args].u.array; sizein=in->size; if(!sizein) { pop_n_elems(args); out=allocate_array(0); push_array(out); return; } if(in->type_field != BIT_ARRAY) { array_fix_type_field(in); if(!in->type_field || in->type_field & ~BIT_ARRAY) error("The array given as argument 1 to transpose must contain arrays only.\n"); } sizeininner=in->item->u.array->size; for(i=1 ; i<sizein; i++) if (sizeininner!=(in->item+i)->u.array->size) error("The array given as argument 1 to transpose must contain arrays of the same size.\n"); out=allocate_array(sizeininner); for(i=0; i<sizein; i++) type|=in->item[i].u.array->type_field; for(j=0; j<sizeininner; j++) { struct svalue * ett; struct svalue * tva; outinner=allocate_array(sizein); ett=outinner->item; tva=in->item; for(i=0; i<sizein; i++) assign_svalue_no_free(ett+i, tva[i].u.array->item+j); outinner->type_field=type; out->item[j].u.array=outinner; out->item[j].type=T_ARRAY; } out->type_field=BIT_ARRAY; pop_n_elems(args); push_array(out); return; } #ifdef DEBUG_MALLOC void f__reset_dmalloc(INT32 args) { CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("_reset_dmalloc: permission denied.\n")); pop_n_elems(args); reset_debug_malloc(); } void f__dmalloc_set_name(INT32 args) { char *s; INT_TYPE i; extern int dynamic_location_number(const char *file, int line); extern int dmalloc_default_location; if(args) { get_all_args("_dmalloc_set_name", args, "%s%i", &s, &i); dmalloc_default_location = dynamic_location_number(s, i); }else{ dmalloc_default_location=0; } pop_n_elems(args); } void f__list_open_fds(INT32 args) { extern void list_open_fds(void); list_open_fds(); } #endif #ifdef PIKE_DEBUG void f__locate_references(INT32 args) { CHECK_SECURITY_OR_ERROR(SECURITY_BIT_SECURITY, ("_locate_references: permission denied.\n")); if(args) locate_references(sp[-args].u.refs); pop_n_elems(args-1); } void f__describe(INT32 args) { if (!args) { push_int(0); } else { pop_n_elems(args-1); } debug_describe_svalue(sp-1); } #endif void f_map_array(INT32 args) { ONERROR tmp; INT32 e; struct svalue *fun; struct array *ret,*foo; if (args < 2) SIMPLE_TOO_FEW_ARGS_ERROR("map_array", 2); if(sp[-args].type != T_ARRAY) SIMPLE_BAD_ARG_ERROR("map_array", 1, "array"); foo=sp[-args].u.array; fun=sp-args+1; ret=allocate_array(foo->size); SET_ONERROR(tmp, do_free_array, ret); for(e=0;e<foo->size;e++) { push_svalue(foo->item+e); assign_svalues_no_free(sp,fun+1,args-2,-1); sp+=args-2; apply_svalue(fun,args-1); ret->item[e]=*(--sp); dmalloc_touch_svalue(sp); } pop_n_elems(args); UNSET_ONERROR(tmp); push_array(ret); } void f_map(INT32 args) { /* map(arr,fun,extra) => ret arr fun goes array function | array ret; ret[i]=fun(arr[i],@extra); program | object | array array multiset | ret = rows(fun,arr) mapping array string array ret; ret[i]=arr[i][fun](@extra); array void|int(0) array ret; ret=arr(@extra) mapping | * mapping ret = program | mkmapping(indices(arr), function map(values(arr),fun,@extra)); multiset * multiset ret = (multiset)(map(indices(arr),fun,@extra)); string * string ret = (string)map((array)arr,fun,@extra); object * if arr->cast : try map((array)arr,fun,@extra); try map((mapping)arr,fun,@extra); try map((multiset)arr,fun,@extra); if arr->_sizeof && arr->`[] array ret; ret[i]=arr[i]; ret=map(ret,fun,@extra); error * * error (ie arr or fun = float or bad int ) */ struct svalue *mysp; struct array *a,*d,*f; int splice,i,n; if (args<1) SIMPLE_TOO_FEW_ARGS_ERROR("map", 1); else if (args<2) { push_int(0); args++; } switch (sp[-args].type) { case T_ARRAY: break; case T_MAPPING: case T_PROGRAM: case T_FUNCTION: /* mapping ret = mkmapping(indices(arr), map(values(arr),fun,@extra)); */ f_aggregate(args-2); mysp=sp; splice=mysp[-1].u.array->size; push_svalue(mysp-3); /* arr */ f_values(1); push_svalue(mysp-2); /* fun */ *sp=mysp[-1]; /* extra */ mysp[-1].type=T_INT; push_array_items(sp->u.array); f_map(splice+2); /* ... arr fun extra -> ... retval */ stack_pop_n_elems_keep_top(2); /* arr fun extra ret -> arr retval */ stack_swap(); /* retval arr */ f_indices(1); /* retval retind */ stack_swap(); /* retind retval */ f_mkmapping(2); /* ret :-) */ return; case T_MULTISET: /* multiset ret = (multiset)(map(indices(arr),fun,@extra)); */ push_svalue(sp-args); /* take indices from arr */ free_svalue(sp-args-1); /* move it to top of stack */ sp[-args-1].type=T_INT; f_indices(1); /* call f_indices */ sp--; dmalloc_touch_svalue(sp); sp[-args]=sp[0]; /* move it back */ f_map(args); sp--; /* allocate_multiset is destructive */ dmalloc_touch_svalue(sp); push_multiset(allocate_multiset(sp->u.array)); return; case T_STRING: /* multiset ret = (string)(map((array)arr,fun,@extra)); */ push_svalue(sp-args); /* take indices from arr */ free_svalue(sp-args-1); /* move it to top of stack */ sp[-args-1].type=T_INT; o_cast(NULL,T_ARRAY); /* cast the string to an array */ sp--; dmalloc_touch_svalue(sp); sp[-args]=sp[0]; /* move it back */ f_map(args); o_cast(NULL,T_STRING); /* cast the array to a string */ return; case T_OBJECT: /* if arr->cast : try map((array)arr,fun,@extra); try map((mapping)arr,fun,@extra); try map((multiset)arr,fun,@extra); */ mysp=sp+3-args; push_svalue(mysp-3); push_constant_text("cast"); f_arrow(2); if (!IS_ZERO(sp-1)) { pop_stack(); push_constant_text("array"); safe_apply(mysp[-3].u.object,"cast",1); if (sp[-1].type==T_ARRAY) { free_svalue(mysp-3); mysp[-3]=*(--sp); dmalloc_touch_svalue(sp); f_map(args); return; } pop_stack(); push_constant_text("mapping"); safe_apply(mysp[-3].u.object,"cast",1); if (sp[-1].type==T_MAPPING) { free_svalue(mysp-3); mysp[-3]=*(--sp); dmalloc_touch_svalue(sp); f_map(args); return; } pop_stack(); push_constant_text("multiset"); safe_apply(mysp[-3].u.object,"cast",1); if (sp[-1].type==T_MULTISET) { free_svalue(mysp-3); mysp[-3]=*(--sp); dmalloc_touch_svalue(sp); f_map(args); return; } pop_stack(); } pop_stack(); /* if arr->_sizeof && arr->`[] array ret; ret[i]=arr[i]; ret=map(ret,fun,@extra); */ /* class myarray { int a0=1,a1=2; int `[](int what) { return ::`[]("a"+what); } int _sizeof() { return 2; } } map(myarray(),lambda(int in){ werror("in=%d\n",in); }); */ push_svalue(mysp-3); push_constant_text("`[]"); f_arrow(2); push_svalue(mysp-3); push_constant_text("_sizeof"); f_arrow(2); if (!IS_ZERO(sp-2)&&!IS_ZERO(sp-1)) { f_call_function(1); if (sp[-1].type!=T_INT) SIMPLE_BAD_ARG_ERROR("map", 1, "object sizeof() returning integer"); n=sp[-1].u.integer; pop_stack(); push_array(d=allocate_array(n)); stack_swap(); for (i=0; i<n; i++) { stack_dup(); /* `[] */ push_int(i); f_call_function(2); d->item[i]=*(--sp); dmalloc_touch_svalue(sp); } pop_stack(); free_svalue(mysp-3); mysp[-3]=*(--sp); dmalloc_touch_svalue(sp); f_map(args); return; } pop_stack(); pop_stack(); SIMPLE_BAD_ARG_ERROR("map",1, "object that works in map"); default: SIMPLE_BAD_ARG_ERROR("map",1, "array|mapping|program|function|" "multiset|string|object"); } f_aggregate(args-2); mysp=sp; splice=mysp[-1].u.array->size; a=mysp[-3].u.array; n=a->size; switch (mysp[-2].type) { case T_FUNCTION: case T_PROGRAM: case T_OBJECT: case T_ARRAY: /* ret[i]=fun(arr[i],@extra); */ push_array(d=allocate_array(n)); d=sp[-1].u.array; for (i=0; i<n; i++) { push_svalue(a->item+i); if (splice) { add_ref_svalue(mysp-1); push_array_items(mysp[-1].u.array); apply_svalue(mysp-2,1+splice); } else { apply_svalue(mysp-2,1); } d->item[i]=*--sp; dmalloc_touch_svalue(sp); } stack_pop_n_elems_keep_top(3); /* fun arr extra d -> d */ return; case T_MAPPING: case T_MULTISET: /* ret[i]=fun[arr[i]]; */ pop_stack(); stack_swap(); f_rows(2); return; case T_STRING: /* ret[i]=arr[i][fun](@extra); */ push_array(d=allocate_array(n)); d=sp[-1].u.array; for (i=0; i<n; i++) { push_svalue(a->item+i); push_svalue(mysp-2); f_arrow(2); if(IS_ZERO(sp-1)) { pop_stack(); continue; } add_ref_svalue(mysp-1); push_array_items(mysp[-1].u.array); f_call_function(splice+1); d->item[i]=*--sp; dmalloc_touch_svalue(sp); } stack_pop_n_elems_keep_top(3); /* fun arr extra d -> d */ return; case T_INT: if (mysp[-2].u.integer==0) { /* ret=arr(@extra); */ stack_swap(); /* arr fun extra -> arr extra fun */ pop_stack(); /* arr extra */ sp--; dmalloc_touch_svalue(sp); push_array_items(sp->u.array); f_call_function(1+splice); return; } /* no break here */ default: SIMPLE_BAD_ARG_ERROR("map",2, "function|program|object|" "string|int(0)|multiset"); } } void f_filter(INT32 args) { /* filter(mixed arr,mixed fun,mixed ... extra) -> _arr__________goes________ array if fun is an array: for (i=0; i<sizeof(arr); i++) if (fun[i]) res+=({arr[i]}); otherwise: keep=map(arr,fun,@extra); for (i=0; i<sizeof(arr); i++) if (keep[i]) res+=({arr[i]}); multiset (multiset)filter((array)arr,fun,@extra); mapping | ind=indices(arr),val=values(arr) program | keep=map(val,fun,@extra); function for (i=0; i<sizeof(keep); i++) if (keep[i]) res[ind[i]]=val[i]; string (string)filter( (array)arr,fun,@extra ); object if arr->cast : try filter((array)arr,fun,@extra); try filter((mapping)arr,fun,@extra); try filter((multiset)arr,fun,@extra); */ int n,i,m,k; struct array *a,*y,*f; struct svalue *mysp; if (args<1) SIMPLE_TOO_FEW_ARGS_ERROR("filter", 1); switch (sp[-args].type) { case T_ARRAY: if (args >= 2 && sp[1-args].type == T_ARRAY) { if (sp[1-args].u.array->size != sp[-args].u.array->size) SIMPLE_BAD_ARG_ERROR("filter", 2, "array of same size as the first"); pop_n_elems(args-2); } else { MEMMOVE(sp-args+1,sp-args,args*sizeof(*sp)); dmalloc_touch_svalue(sp); sp++; add_ref_svalue(sp-args); f_map(args); } f=sp[-1].u.array; a=sp[-2].u.array; n=a->size; for (k=m=i=0; i<n; i++) if (!IS_ZERO(f->item+i)) { push_svalue(a->item+i); if (m++>32) { f_aggregate(m); m=0; if (++k>32) { f_add(k); k=1; } } } if (m || !k) { f_aggregate(m); k++; } if (k > 1) f_add(k); stack_pop_n_elems_keep_top(2); return; case T_MAPPING: case T_PROGRAM: case T_FUNCTION: /* mapping ret = mkmapping(indices(arr), map(values(arr),fun,@extra)); */ MEMMOVE(sp-args+2,sp-args,args*sizeof(*sp)); sp+=2; sp[-args-2].type=T_INT; sp[-args-1].type=T_INT; push_svalue(sp-args); f_indices(1); sp[-args-3]=*--sp; dmalloc_touch_svalue(sp); push_svalue(sp-args); f_values(1); sp[-args-2]=*--sp; dmalloc_touch_svalue(sp); assign_svalue(sp-args,sp-args-1); /* loop values only */ f_map(args); y=sp[-3].u.array; a=sp[-2].u.array; f=sp[-1].u.array; n=a->size; for (m=i=0; i<n; i++) if (!IS_ZERO(f->item+i)) m++; push_mapping(allocate_mapping(MAXIMUM(m,4))); for (i=0; i<n; i++) if (!IS_ZERO(f->item+i)) mapping_insert(sp[-1].u.mapping,y->item+i,a->item+i); stack_pop_n_elems_keep_top(3); return; case T_MULTISET: push_svalue(sp-args); /* take indices from arr */ free_svalue(sp-args-1); /* move it to top of stack */ sp[-args-1].type=T_INT; f_indices(1); /* call f_indices */ sp--; dmalloc_touch_svalue(sp); sp[-args]=sp[0]; /* move it back */ f_filter(args); sp--; /* allocate_multiset is destructive */ dmalloc_touch_svalue(sp); push_multiset(allocate_multiset(sp->u.array)); return; case T_STRING: push_svalue(sp-args); /* take indices from arr */ free_svalue(sp-args-1); /* move it to top of stack */ sp[-args-1].type=T_INT; o_cast(NULL,T_ARRAY); /* cast the string to an array */ sp--; dmalloc_touch_svalue(sp); sp[-args]=sp[0]; /* move it back */ f_filter(args); o_cast(NULL,T_STRING); /* cast the array to a string */ return; case T_OBJECT: mysp=sp+3-args; push_svalue(mysp-3); push_constant_text("cast"); f_arrow(2); if (!IS_ZERO(sp-1)) { pop_stack(); push_constant_text("array"); safe_apply(mysp[-3].u.object,"cast",1); if (sp[-1].type==T_ARRAY) { free_svalue(mysp-3); mysp[-3]=*(--sp); dmalloc_touch_svalue(sp); f_filter(args); return; } pop_stack(); push_constant_text("mapping"); safe_apply(mysp[-3].u.object,"cast",1); if (sp[-1].type==T_MAPPING) { free_svalue(mysp-3); mysp[-3]=*(--sp); dmalloc_touch_svalue(sp); f_filter(args); return; } pop_stack(); push_constant_text("multiset"); safe_apply(mysp[-3].u.object,"cast",1); if (sp[-1].type==T_MULTISET) { free_svalue(mysp-3); mysp[-3]=*(--sp); dmalloc_touch_svalue(sp); f_filter(args); return; } pop_stack(); } pop_stack(); SIMPLE_BAD_ARG_ERROR("filter",1, "...|object that can be cast to array, multiset or mapping"); default: SIMPLE_BAD_ARG_ERROR("filter",1, "array|mapping|program|function|" "multiset|string|object"); } } void f_enumerate(INT32 args) { struct array *d; int i; INT_TYPE n; if (args<1) SIMPLE_TOO_FEW_ARGS_ERROR("enumarate", 1); if (args<2) { push_int(1); args++; } if (args<3) { push_int(0); args++; } if (args<=3 && (sp[1-args].type==T_INT && sp[2-args].type==T_INT)) { INT_TYPE step,start; get_all_args("enumerate", args, "%i%i%i", &n, &step, &start); if (n<0) SIMPLE_BAD_ARG_ERROR("enumerate",1,"int(0..)"); pop_n_elems(args); push_array(d=allocate_array(n)); for (i=0; i<n; i++) { d->item[i].u.integer=start; d->item[i].type=T_INT; d->item[i].subtype=NUMBER_NUMBER; start+=step; } } else if (args<=3 && ((sp[1-args].type==T_INT || sp[1-args].type==T_FLOAT) && (sp[2-args].type==T_INT || sp[2-args].type==T_FLOAT) ) ) { FLOAT_TYPE step, start; get_all_args("enumerate", args, "%i%F%F", &n, &step, &start); if (n<0) SIMPLE_BAD_ARG_ERROR("enumerate",1,"int(0..)"); pop_n_elems(args); push_array(d=allocate_array(n)); for (i=0; i<n; i++) { d->item[i].u.float_number=start; d->item[i].type=T_FLOAT; start+=step; } } else { get_all_args("enumerate", args, "%i", &n); if (n<0) SIMPLE_BAD_ARG_ERROR("enumerate",1,"int(0..)"); if (args>4) pop_n_elems(args-4); if (args<4) { push_array(d=allocate_array(n)); push_svalue(sp-2); /* start */ for (i=0; i<n; i++) { assign_svalue_no_free(d->item+i,sp-1); if (i<n-1) { push_svalue(sp-4); /* step */ f_add(2); } } } else { push_array(d=allocate_array(n)); push_svalue(sp-3); /* start */ for (i=0; i<n; i++) { assign_svalue_no_free(d->item+i,sp-1); if (i<n-1) { push_svalue(sp-3); /* function */ stack_swap(); push_svalue(sp-6); /* step */ f_call_function(3); } } } pop_stack(); stack_pop_n_elems_keep_top(4); } } void f_string_count(INT32 args) { struct pike_string * haystack=NULL; struct pike_string * needle=NULL; int c=0; int i,j; get_all_args("String.count",args,"%W%W",&haystack,&needle); 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? */ 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; } pop_n_elems(args); push_int(c); } void f_inherit_list(INT32 args) { struct program *p; struct svalue *arg; struct object *par; int parid,e,q=0; get_all_args("inherit_list",args,"%*",&arg); if(sp[-args].type == T_OBJECT) f_object_program(1); p=program_from_svalue(arg); if(!p) SIMPLE_BAD_ARG_ERROR("inherit_list", 1, "program"); if(arg->type == T_FUNCTION) { par=arg->u.object; parid=arg->subtype; }else{ par=0; parid=-1; } check_stack(p->num_inherits); for(e=0;e<p->num_inherits;e++) { struct inherit *in=p->inherits+e; if(in->inherit_level==1) { if(in->parent_offset) { struct inherit *inherit=in; int accumulator; struct object *o=par; int i; o=par; i=in->parent_identifier; accumulator=inherit->parent_offset - 1; while(accumulator--) { struct program *p; if(inherit->parent_offset) { i=o->parent_identifier; o=o->parent; accumulator+=inherit->parent_offset-1; }else{ i=inherit->parent_identifier; o=inherit->parent; } if(!o || !o->prog || i<0) break; inherit=INHERIT_FROM_INT(o->prog, i); } if(o && o->prog && i>=0) { ref_push_object(o); sp[-1].subtype=i; sp[-1].type=T_FUNCTION; #ifdef PIKE_DEBUG if(program_from_svalue(sp-1) != in->prog) fatal("Programming error in inherit_list!\n"); #endif q++; continue; } } if(in->parent && in->parent->prog) { ref_push_object(in->parent); sp[-1].subtype=in->parent_identifier; sp[-1].type=T_FUNCTION; #ifdef PIKE_DEBUG if(program_from_svalue(sp-1) != in->prog) fatal("Programming error in inherit_list!\n"); #endif }else{ ref_push_program(in->prog); } q++; } } f_aggregate(q); } void f_program_implements(INT32 args) { struct program *p,*p2; int ret; get_all_args("Program.implements",args,"%p%p",&p,&p2); ret=implements(p,p2); pop_n_elems(args); push_int(ret); } void f_program_inherits(INT32 args) { struct program *p,*p2; struct svalue *arg,*arg2; int ret; get_all_args("Program.inherits",args,"%p%p",&p,&p2); ret=!!low_get_storage(p2,p); pop_n_elems(args); push_int(ret); } void f_program_defined(INT32 args) { struct program *p; get_all_args("Program.defined",args,"%p",&p); if(p && p->num_linenumbers) { char *tmp; INT32 line; if((tmp=get_line(p->program, p, &line))) { struct pike_string *tmp2; tmp2=make_shared_string(tmp); pop_n_elems(args); push_string(tmp2); if(line > 1) { push_constant_text(":"); push_int(line); f_add(3); } return; } } pop_n_elems(args); push_int(0); } void f_function_defined(INT32 args) { check_all_args("Function.defined",args,BIT_FUNCTION, 0); if(sp[-args].subtype != FUNCTION_BUILTIN && sp[-args].u.object->prog) { char *tmp; INT32 line; struct identifier *id=ID_FROM_INT(sp[-args].u.object->prog, sp[-args].subtype); if(IDENTIFIER_IS_PIKE_FUNCTION( id->identifier_flags ) && id->func.offset != -1) { if((tmp=get_line(sp[-args].u.object->prog->program + id->func.offset, sp[-args].u.object->prog, &line))) { struct pike_string *tmp2; tmp2=make_shared_string(tmp); pop_n_elems(args); push_string(tmp2); push_constant_text(":"); push_int(line); f_add(3); return; } } } pop_n_elems(args); push_int(0); } void f_string_width(INT32 args) { struct pike_string *s; int ret; get_all_args("String.width",args,"%W",&s); ret=s->size_shift; pop_n_elems(args); push_int(8 * (1<<ret)); } void init_builtin_efuns(void) { ADD_EFUN("gethrtime", f_gethrtime, tFunc(tOr(tInt,tVoid),tInt), OPT_EXTERNAL_DEPEND); #ifdef HAVE_GETHRVTIME ADD_EFUN("gethrvtime",f_gethrvtime, tFunc(tNone,tInt),OPT_EXTERNAL_DEPEND); #endif #ifdef PROFILING ADD_EFUN("get_profiling_info", f_get_prof_info, tFunc(tPrg,tArray), OPT_EXTERNAL_DEPEND); #endif /* PROFILING */ ADD_EFUN("_refs",f__refs,tFunc(tRef,tInt),OPT_EXTERNAL_DEPEND); ADD_EFUN("_leak",f__leak,tFunc(tRef,tInt),OPT_EXTERNAL_DEPEND); ADD_EFUN("_typeof",f__typeof,tFunc(tMix,tStr),0); ADD_EFUN("replace_master",f_replace_master, tFunc(tObj,tVoid),OPT_SIDE_EFFECT); /* function(:object) */ ADD_EFUN("master",f_master,tFunc(tNone,tObj),OPT_EXTERNAL_DEPEND); /* function(string,void|mixed:void) */ ADD_EFUN("add_constant",f_add_constant, tFunc(tStr tOr(tVoid,tMix),tVoid),OPT_SIDE_EFFECT); /* function(0=mixed ...:array(0)) */ #ifdef DEBUG_MALLOC ADD_EFUN("aggregate",_f_aggregate, tFuncV(tNone,tSetvar(0,tMix),tArr(tVar(0))),OPT_TRY_OPTIMIZE); #else ADD_EFUN("aggregate",f_aggregate, tFuncV(tNone,tSetvar(0,tMix),tArr(tVar(0))),OPT_TRY_OPTIMIZE); #endif /* function(0=mixed ...:multiset(0)) */ ADD_EFUN("aggregate_multiset",f_aggregate_multiset, tFuncV(tNone,tSetvar(0,tMix),tSet(tVar(0))),OPT_TRY_OPTIMIZE); /* function(0=mixed ...:mapping(0:0)) */ ADD_EFUN2("aggregate_mapping",f_aggregate_mapping, tFuncV(tNone,tSetvar(0,tMix),tMap(tVar(0),tVar(0))), OPT_TRY_OPTIMIZE, fix_aggregate_mapping_type, 0); /* function(:mapping(string:mixed)) */ ADD_EFUN("all_constants",f_all_constants, tFunc(tNone,tMap(tStr,tMix)),OPT_EXTERNAL_DEPEND); /* function(int,void|0=mixed:array(0)) */ ADD_EFUN("allocate", f_allocate, tFunc(tInt tOr(tVoid,tSetvar(0,tMix)),tArr(tVar(0))), 0); /* function(mixed:int) */ ADD_EFUN("arrayp", f_arrayp,tFunc(tMix,tInt),0); /* function(:array(array)) */ ADD_EFUN("backtrace",f_backtrace, tFunc(tNone,tArr(tArray)),OPT_EXTERNAL_DEPEND); /* function(array,mixed:array) */ ADD_EFUN("column",f_column,tFunc(tArray tMix,tArray),0); /* function(string...:string) */ ADD_EFUN("combine_path",f_combine_path,tFuncV(tNone,tStr,tStr),0); /* function(string,object|void,mixed...:program) */ ADD_EFUN("compile", f_compile, tFuncV(tStr tOr(tObj, tVoid),tMix,tPrg), OPT_EXTERNAL_DEPEND); /* function(1=mixed:1) */ ADD_EFUN("copy_value",f_copy_value,tFunc(tSetvar(1,tMix),tVar(1)),0); /* function(string:string)|function(string,string:int) */ ADD_EFUN("crypt",f_crypt, tOr(tFunc(tStr,tStr),tFunc(tStr tStr,tInt)),OPT_EXTERNAL_DEPEND); /* function(int:string) */ ADD_EFUN("ctime",f_ctime,tFunc(tInt,tStr),OPT_TRY_OPTIMIZE); /* function(object|void:void) */ ADD_EFUN("destruct",f_destruct,tFunc(tOr(tObj,tVoid),tVoid),OPT_SIDE_EFFECT); /* function(mixed,mixed:int) */ ADD_EFUN("equal",f_equal,tFunc(tMix tMix,tInt),OPT_TRY_OPTIMIZE); /* function(array(0=mixed),int|void,int|void:array(0)) */ ADD_FUNCTION("everynth",f_everynth, tFunc(tArr(tSetvar(0,tMix)) tOr(tInt,tVoid) tOr(tInt,tVoid), tArr(tVar(0))), 0); /* function(int:void) */ ADD_EFUN("exit",f_exit,tFunc(tInt,tVoid),OPT_SIDE_EFFECT); /* function(int:void) */ ADD_EFUN("_exit",f__exit,tFunc(tInt,tVoid),OPT_SIDE_EFFECT); /* function(mixed:int) */ ADD_EFUN("floatp", f_floatp,tFunc(tMix,tInt),OPT_TRY_OPTIMIZE); /* function(function:string) */ ADD_EFUN("function_name",f_function_name, tFunc(tFunction,tStr),OPT_TRY_OPTIMIZE); /* function(function:object) */ ADD_EFUN("function_object",f_function_object, tFunc(tFunction,tObj),OPT_TRY_OPTIMIZE); /* function(mixed:int) */ ADD_EFUN("functionp", f_functionp,tFunc(tMix,tInt),OPT_TRY_OPTIMIZE); /* function(string,string:int)|function(string,string*:array(string)) */ ADD_EFUN("glob",f_glob, tOr(tFunc(tStr tStr,tInt),tFunc(tStr tArr(tStr),tArr(tStr))), OPT_TRY_OPTIMIZE); /* function(string,int|void:int) */ ADD_EFUN("hash",f_hash,tFunc(tStr tOr(tInt,tVoid),tInt),OPT_TRY_OPTIMIZE); /* function(string|array:int*)|function(mapping(1=mixed:mixed)|multiset(1=mixed):array(1))|function(object|program:string*) */ ADD_EFUN2("indices",f_indices, tOr3(tFunc(tOr(tStr,tArray),tArr(tInt)), tFunc(tOr(tMap(tSetvar(1,tMix),tMix),tSet(tSetvar(1,tMix))), tArr(tVar(1))), tFunc(tOr(tObj,tPrg),tArr(tStr))), OPT_TRY_OPTIMIZE,fix_indices_type,0); /* function(mixed:int) */ ADD_EFUN("intp", f_intp,tFunc(tMix,tInt),OPT_TRY_OPTIMIZE); /* function(mixed:int) */ ADD_EFUN("multisetp", f_multisetp,tFunc(tMix,tInt),OPT_TRY_OPTIMIZE); /* function(string:string) */ ADD_EFUN("lower_case",f_lower_case,tFunc(tStr,tStr),OPT_TRY_OPTIMIZE); /* function(0=mapping,mixed:0) */ ADD_EFUN("m_delete",f_m_delete,tFunc(tSetvar(0,tMapping) tMix,tVar(0)),0); /* function(mixed:int) */ ADD_EFUN("mappingp",f_mappingp,tFunc(tMix,tInt),OPT_TRY_OPTIMIZE); /* function(array(1=mixed),array(2=mixed):mapping(1:2)) */ ADD_EFUN("mkmapping",f_mkmapping, tFunc(tArr(tSetvar(1,tMix)) tArr(tSetvar(2,tMix)), tMap(tVar(1),tVar(2))),OPT_TRY_OPTIMIZE); ADD_EFUN("mkmultiset",f_mkmultiset, tFunc(tArr(tSetvar(1,tMix)), tSet(tVar(1))), OPT_TRY_OPTIMIZE); /* function(1=mixed,int:1) */ ADD_EFUN("set_weak_flag",f_set_weak_flag, tFunc(tSetvar(1,tMix) tInt,tVar(1)),OPT_SIDE_EFFECT); /* function(void|object:object) */ ADD_EFUN("next_object",f_next_object, tFunc(tOr(tVoid,tObj),tObj),OPT_EXTERNAL_DEPEND); /* function(string:string)|function(object:object)|function(mapping:mapping)|function(multiset:multiset)|function(program:program)|function(array:array) */ ADD_EFUN("_next",f__next, tOr6(tFunc(tStr,tStr), tFunc(tObj,tObj), tFunc(tMapping,tMapping), tFunc(tMultiset,tMultiset), tFunc(tPrg,tPrg), tFunc(tArray,tArray)),OPT_EXTERNAL_DEPEND); /* function(object:object)|function(mapping:mapping)|function(multiset:multiset)|function(program:program)|function(array:array) */ ADD_EFUN("_prev",f__prev, tOr5(tFunc(tObj,tObj), tFunc(tMapping,tMapping), tFunc(tMultiset,tMultiset), tFunc(tPrg,tPrg), tFunc(tArray,tArray)),OPT_EXTERNAL_DEPEND); /* function(mixed:program) */ ADD_EFUN2("object_program", f_object_program,tFunc(tMix, tPrg), OPT_TRY_OPTIMIZE, fix_object_program_type, 0); /* function(mixed:int) */ ADD_EFUN("objectp", f_objectp,tFunc(tMix,tInt),0); /* function(mixed:int) */ ADD_EFUN("programp",f_programp,tFunc(tMix,tInt),0); /* function(:int) */ ADD_EFUN("query_num_arg",f_query_num_arg, tFunc(tNone,tInt),OPT_EXTERNAL_DEPEND); /* function(int:int) */ ADD_EFUN("random",f_random, tFunc(tInt,tInt),OPT_EXTERNAL_DEPEND); /* function(int:void) */ ADD_EFUN("random_seed",f_random_seed, tFunc(tInt,tVoid),OPT_SIDE_EFFECT); /* function(string,string,string:string)|function(string,string*,string*:string)|function(0=array,mixed,mixed:0)|function(1=mapping,mixed,mixed:1) */ ADD_EFUN("replace",f_replace, tOr4(tFunc(tStr tStr tStr,tStr), tFunc(tStr tArr(tStr) tArr(tStr),tStr), tFunc(tSetvar(0,tArray) tMix tMix,tVar(0)), tFunc(tSetvar(1,tMapping) tMix tMix,tVar(1))),0); /* function(int:int)|function(string:string)|function(0=array:0) */ ADD_EFUN("reverse",f_reverse, tOr3(tFunc(tInt,tInt), tFunc(tStr,tStr), tFunc(tSetvar(0, tArray),tVar(0))),0); /* function(mixed,array:array) */ ADD_EFUN("rows",f_rows, tOr6(tFunc(tMap(tSetvar(0,tMix),tSetvar(1,tMix)) tArr(tVar(0)), tArr(tVar(1))), tFunc(tSet(tSetvar(0,tMix)) tArr(tVar(0)), tArr(tInt01)), tFunc(tString tArr(tInt), tArr(tInt)), tFunc(tArr(tSetvar(0,tMix)) tArr(tInt), tArr(tVar(1))), tFunc(tArray tArr(tNot(tInt)), tArray), tFunc(tOr4(tObj,tFunction,tProgram,tInt) tArray, tArray)), 0); /* function(:int *) */ ADD_EFUN("rusage", f_rusage,tFunc(tNone,tArr(tInt)),OPT_EXTERNAL_DEPEND); /* FIXME: Is the third arg a good idea when the first is a mapping? */ ADD_EFUN("search",f_search, tOr4(tFunc(tStr tStr tOr(tVoid,tInt), tInt), tFunc(tArr(tSetvar(0,tMix)) tVar(0) tOr(tVoid,tInt), tInt), tFunc(tMap(tSetvar(1,tMix),tSetvar(2,tMix)) tVar(2) tOr(tVoid,tVar(1)), tVar(1)), tIfnot( tFunc(tArr(tSetvar(0,tMix)) tVar(0) tOr(tVoid,tInt), tInt), tIfnot( tFunc(tMap(tSetvar(1,tMix),tSetvar(2,tMix)) tVar(2) tOr(tVoid,tVar(1)), tVar(1)), tFunc( tOr(tMapping,tArray) tMix tOr(tVoid,tMix), tZero)))), 0); ADD_EFUN("has_index",f_has_index, tOr5(tFunc(tStr tIntPos, tInt), tFunc(tArray tIntPos, tInt), tFunc(tSet(tSetvar(0,tMix)) tVar(0), tInt), tFunc(tMap(tSetvar(1,tMix),tMix) tVar(1), tInt), tFunc(tObj tMix, tInt)), 0); ADD_EFUN("has_value",f_has_value, tOr5(tFunc(tStr tStr, tInt), tFunc(tArr(tSetvar(0,tMix)) tVar(0), tInt), tFunc(tMultiset tInt, tInt), tFunc(tMap(tMix,tSetvar(1,tMix)) tVar(1), tInt), tFunc(tObj tMix, tInt)),

pike.git/ src/ builtin_functions.c > 0cf60f61bd661c88907c769b430fedc762a1ed8e [Annotate]