cb22561995-10-11Fredrik Hübinette (Hubbe) /*\
06983f1996-09-22Fredrik Hübinette (Hubbe) ||| This file a part of Pike, and is copyright by Fredrik Hubinette ||| Pike is distributed as GPL (General Public License)
cb22561995-10-11Fredrik Hübinette (Hubbe) ||| See the files COPYING and DISCLAIMER for more information. \*/
06983f1996-09-22Fredrik Hübinette (Hubbe) #include "constants.h"
5267b71995-08-09Fredrik Hübinette (Hubbe) #include "macros.h" #include "program.h"
06983f1996-09-22Fredrik Hübinette (Hubbe) #include "pike_types.h"
5267b71995-08-09Fredrik Hübinette (Hubbe) #include "stralloc.h" #include "memory.h" #include "interpret.h" static struct hash_table *efun_hash = 0;
06983f1996-09-22Fredrik Hübinette (Hubbe) struct efun *lookup_efun(struct pike_string *name)
5267b71995-08-09Fredrik Hübinette (Hubbe) { struct hash_entry *h; if(!efun_hash) return 0; h=hash_lookup(efun_hash, name); if(!h) return 0; return BASEOF(h, efun, link); }
06983f1996-09-22Fredrik Hübinette (Hubbe) void low_add_efun(struct pike_string *name, struct svalue *fun)
5267b71995-08-09Fredrik Hübinette (Hubbe) { struct efun *parent; parent=lookup_efun(name); if(!parent) { if(!fun) return; parent=ALLOC_STRUCT(efun); copy_shared_string(parent->link.s,name); efun_hash=hash_insert(efun_hash, &parent->link); }else{ free_svalue(& parent->function); /* Disable efun */ if(!fun) { efun_hash=hash_unlink(efun_hash, &parent->link); free_string(parent->link.s); free((char *)parent); return; } } assign_svalue_no_free(& parent->function, fun); }
7bd0ea1996-02-19Fredrik Hübinette (Hubbe) struct callable *make_callable(c_fun fun, char *name, char *type, INT16 flags, optimize_fun optimize, docode_fun docode)
5267b71995-08-09Fredrik Hübinette (Hubbe) { struct callable *f; f=ALLOC_STRUCT(callable); f->refs=1; f->function=fun; f->name=make_shared_string(name); f->type=parse_type(type); f->flags=flags;
7bd0ea1996-02-19Fredrik Hübinette (Hubbe)  f->docode=docode; f->optimize=optimize;
5267b71995-08-09Fredrik Hübinette (Hubbe)  return f; } void really_free_callable(struct callable *fun) { free_string(fun->type); free_string(fun->name); free((char *)fun); }
7bd0ea1996-02-19Fredrik Hübinette (Hubbe) void add_efun2(char *name, c_fun fun, char *type, INT16 flags, optimize_fun optimize, docode_fun docode)
5267b71995-08-09Fredrik Hübinette (Hubbe) { struct svalue s;
06983f1996-09-22Fredrik Hübinette (Hubbe)  struct pike_string *n;
5267b71995-08-09Fredrik Hübinette (Hubbe)  n=make_shared_string(name); s.type=T_FUNCTION;
bdb5091996-09-25Fredrik Hübinette (Hubbe)  s.subtype=FUNCTION_BUILTIN;
7bd0ea1996-02-19Fredrik Hübinette (Hubbe)  s.u.efun=make_callable(fun, name, type, flags, optimize, docode);
5267b71995-08-09Fredrik Hübinette (Hubbe)  low_add_efun(n, &s); free_svalue(&s); free_string(n); }
7bd0ea1996-02-19Fredrik Hübinette (Hubbe) void add_efun(char *name, c_fun fun, char *type, INT16 flags) { add_efun2(name,fun,type,flags,0,0); }
5267b71995-08-09Fredrik Hübinette (Hubbe) static void push_efun_entry(struct hash_entry *h) { struct efun *f;
5e03401996-06-21Fredrik Hübinette (Hubbe)  check_stack(1);
5267b71995-08-09Fredrik Hübinette (Hubbe)  f=BASEOF(h, efun, link); push_string(f->link.s); f->link.s->refs++;
5aa04a1996-05-16Fredrik Hübinette (Hubbe)  copy_svalues_recursively_no_free(sp,& f->function,1,0); sp++;
5267b71995-08-09Fredrik Hübinette (Hubbe) } void push_all_efuns_on_stack() { if(efun_hash) map_hashtable(efun_hash,push_efun_entry); } static void free_one_hashtable_entry(struct hash_entry *h) { struct efun *f; f=BASEOF(h, efun, link); free_svalue(& f->function); free((char *)f); } void cleanup_added_efuns() { if(efun_hash) { free_hashtable(efun_hash,free_one_hashtable_entry); efun_hash=0; } }