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authorLoic Blot <loic.blot@unix-experience.fr>2015-03-22 21:33:09 +0100
committerLoic Blot <loic.blot@unix-experience.fr>2015-03-22 21:33:09 +0100
commit0ae75f2a4e3107271924311b93327ff4b6c24e8c (patch)
treede8e8aeb888202ce04fdb7e29d02cb607905d74a /src/script/common/c_content.cpp
parent0e5e49736c0a5fa29bca257bafc02d7c7a7171c9 (diff)
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Player: Fix a deadlock triggered by previous commit 0e5e49736c0a5fa29bca257bafc02d7c7a7171c9
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generated by cgit v1.2.3 (git 2.39.1) at 2025-05-13 21:17:19 +0000
** ** * frealloc(ud, NULL, 0, x) creates a new block of size `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 *errormsg) { void *newblock; int newsize; if (*size >= limit/2) { /* cannot double it? */ if (*size >= limit) /* cannot grow even a little? */ luaG_runerror(L, errormsg); 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; } void *luaM_toobig (lua_State *L) { luaG_runerror(L, "memory allocation error: block too big"); return NULL; /* to avoid warnings */ } /* ** generic allocation routine. */ void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) { global_State *g = G(L); lua_assert((osize == 0) == (block == NULL)); block = (*g->frealloc)(g->ud, block, osize, nsize); if (block == NULL && nsize > 0) luaD_throw(L, LUA_ERRMEM); lua_assert((nsize == 0) == (block == NULL)); g->totalbytes = (g->totalbytes - osize) + nsize; return block; }