diff options
Diffstat (limited to 'lua/lmem.c')
-rw-r--r-- | lua/lmem.c | 23 |
1 files changed, 12 insertions, 11 deletions
@@ -1,15 +1,17 @@ /* -** $Id: lmem.c,v 1.84.1.1 2013/04/12 18:48:47 roberto Exp $ +** $Id: lmem.c,v 1.91 2015/03/06 19:45:54 roberto Exp $ ** Interface to Memory Manager ** See Copyright Notice in lua.h */ - -#include <stddef.h> - #define lmem_c #define LUA_CORE +#include "lprefix.h" + + +#include <stddef.h> + #include "lua.h" #include "ldebug.h" @@ -24,15 +26,15 @@ /* ** 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) +** ('osize' is the old size, 'nsize' is the new size) ** -** * frealloc(ud, NULL, x, s) creates a new block of size `s' (no +** * frealloc(ud, NULL, x, s) creates a new block of size 's' (no ** matter 'x'). ** -** * frealloc(ud, p, x, 0) frees the block `p' +** * 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) +** (which is equivalent to free(NULL) in ISO C) ** ** frealloc returns NULL if it cannot create or reallocate the area ** (any reallocation to an equal or smaller size cannot fail!) @@ -83,9 +85,8 @@ void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) { #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) { + lua_assert(nsize > realosize); /* cannot fail when shrinking a block */ + if (g->version) { /* is state fully built? */ luaC_fullgc(L, 1); /* try to free some memory... */ newblock = (*g->frealloc)(g->ud, block, osize, nsize); /* try again */ } |