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usr / src / sys / contrib / openzfs / module / lua /

📁 ..
📄 Makefile.in(852 B)
📄 README.zfs(3.38 KB)
📄 lapi.c(30.73 KB)
📄 lapi.h(583 B)
📄 lauxlib.c(22.21 KB)
📄 lbaselib.c(7.23 KB)
📄 lcode.c(22.03 KB)
📄 lcode.h(3.08 KB)
📄 lcompat.c(1.43 KB)
📄 lcorolib.c(3.59 KB)
📄 lctype.c(2.26 KB)
📄 lctype.h(1.83 KB)
📄 ldebug.c(16.15 KB)
📄 ldebug.h(1.1 KB)
📄 ldo.c(22.2 KB)
📄 ldo.h(1.53 KB)
📄 lfunc.c(4.19 KB)
📄 lfunc.h(1.06 KB)
📄 lgc.c(36.9 KB)
📄 lgc.h(5.31 KB)
📄 llex.c(15.02 KB)
📄 llex.h(2.18 KB)
📄 llimits.h(7.73 KB)
📄 lmem.c(2.61 KB)
📄 lmem.h(1.79 KB)
📄 lobject.c(7.68 KB)
📄 lobject.h(14.62 KB)
📄 lopcodes.c(3.04 KB)
📄 lopcodes.h(8.32 KB)
📄 lparser.c(45.19 KB)
📄 lparser.h(3.29 KB)
📄 lstate.c(7.54 KB)
📄 lstate.h(7.46 KB)
📄 lstring.c(4.85 KB)
📄 lstring.h(1.28 KB)
📄 lstrlib.c(28.3 KB)
📄 ltable.c(16.18 KB)
📄 ltable.h(1.42 KB)
📄 ltablib.c(7.62 KB)
📄 ltm.c(1.78 KB)
📄 ltm.h(1.14 KB)
📄 lvm.c(30.16 KB)
📄 lvm.h(1.49 KB)
📄 lzio.c(1.61 KB)
📄 lzio.h(1.5 KB)
📁 setjmp

Editing: lmem.c

/* BEGIN CSTYLED */
/*
** $Id: lmem.c,v 1.84.1.1 2013/04/12 18:48:47 roberto Exp $
** Interface to Memory Manager
** See Copyright Notice in lua.h
*/

#define lmem_c
#define LUA_CORE

#include <sys/lua/lua.h>

#include "ldebug.h"
#include "ldo.h"
#include "lgc.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"

/*
** About the realloc function:
** void * frealloc (void *ud, void *ptr, size_t osize, size_t nsize);
** (`osize' is the old size, `nsize' is the new size)
**
** * frealloc(ud, NULL, x, s) creates a new block of size `s' (no
** matter 'x').
**
** * frealloc(ud, p, x, 0) frees the block `p'
** (in this specific case, frealloc must return NULL);
** particularly, frealloc(ud, NULL, 0, 0) does nothing
** (which is equivalent to free(NULL) in ANSI C)
**
** frealloc returns NULL if it cannot create or reallocate the area
** (any reallocation to an equal or smaller size cannot fail!)
*/

#define MINSIZEARRAY	4

void *luaM_growaux_ (lua_State *L, void *block, int *size, size_t size_elems,
                     int limit, const char *what) {
  void *newblock;
  int newsize;
  if (*size >= limit/2) {  /* cannot double it? */
    if (*size >= limit)  /* cannot grow even a little? */
      luaG_runerror(L, "too many %s (limit is %d)", what, limit);
    newsize = limit;  /* still have at least one free place */
  }
  else {
    newsize = (*size)*2;
    if (newsize < MINSIZEARRAY)
      newsize = MINSIZEARRAY;  /* minimum size */
  }
  newblock = luaM_reallocv(L, block, *size, newsize, size_elems);
  *size = newsize;  /* update only when everything else is OK */
  return newblock;
}

l_noret luaM_toobig (lua_State *L) {
  luaG_runerror(L, "memory allocation error: block too big");
}

/*
** generic allocation routine.
*/
void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) {
  void *newblock;
  global_State *g = G(L);
  size_t realosize = (block) ? osize : 0;
  lua_assert((realosize == 0) == (block == NULL));
#if defined(HARDMEMTESTS)
  if (nsize > realosize && g->gcrunning)
    luaC_fullgc(L, 1);  /* force a GC whenever possible */
#endif
  newblock = (*g->frealloc)(g->ud, block, osize, nsize);
  if (newblock == NULL && nsize > 0) {
    api_check(L, nsize > realosize,
                 "realloc cannot fail when shrinking a block");
    if (g->gcrunning) {
      luaC_fullgc(L, 1);  /* try to free some memory... */
      newblock = (*g->frealloc)(g->ud, block, osize, nsize);  /* try again */
    }
    if (newblock == NULL)
      luaD_throw(L, LUA_ERRMEM);
  }
  lua_assert((nsize == 0) == (newblock == NULL));
  g->GCdebt = (g->GCdebt + nsize) - realosize;
  return newblock;
}
/* END CSTYLED */

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Editing: lmem.c

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