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| author | Li Jin <dragon-fly@qq.com> | 2020-06-22 16:50:40 +0800 |
|---|---|---|
| committer | Li Jin <dragon-fly@qq.com> | 2020-06-22 16:50:40 +0800 |
| commit | cd2b60b101a398cb9356d746364e70eaed1860f1 (patch) | |
| tree | a1fe71b76faabc4883f16905a94164ce5c23e692 /src/lua-5.3/lmem.c | |
| parent | 88c1052e700f38cf3d8ad82d469da4c487760b7e (diff) | |
| download | yuescript-cd2b60b101a398cb9356d746364e70eaed1860f1.tar.gz yuescript-cd2b60b101a398cb9356d746364e70eaed1860f1.tar.bz2 yuescript-cd2b60b101a398cb9356d746364e70eaed1860f1.zip | |
add support for local variable declared with attribute 'close' and 'const' for Lua 5.4.
Diffstat (limited to 'src/lua-5.3/lmem.c')
| -rw-r--r-- | src/lua-5.3/lmem.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/src/lua-5.3/lmem.c b/src/lua-5.3/lmem.c deleted file mode 100644 index 0241cc3..0000000 --- a/src/lua-5.3/lmem.c +++ /dev/null | |||
| @@ -1,100 +0,0 @@ | |||
| 1 | /* | ||
| 2 | ** $Id: lmem.c,v 1.91.1.1 2017/04/19 17:20:42 roberto Exp $ | ||
| 3 | ** Interface to Memory Manager | ||
| 4 | ** See Copyright Notice in lua.h | ||
| 5 | */ | ||
| 6 | |||
| 7 | #define lmem_c | ||
| 8 | #define LUA_CORE | ||
| 9 | |||
| 10 | #include "lprefix.h" | ||
| 11 | |||
| 12 | |||
| 13 | #include <stddef.h> | ||
| 14 | |||
| 15 | #include "lua.h" | ||
| 16 | |||
| 17 | #include "ldebug.h" | ||
| 18 | #include "ldo.h" | ||
| 19 | #include "lgc.h" | ||
| 20 | #include "lmem.h" | ||
| 21 | #include "lobject.h" | ||
| 22 | #include "lstate.h" | ||
| 23 | |||
| 24 | |||
| 25 | |||
| 26 | /* | ||
| 27 | ** About the realloc function: | ||
| 28 | ** void * frealloc (void *ud, void *ptr, size_t osize, size_t nsize); | ||
| 29 | ** ('osize' is the old size, 'nsize' is the new size) | ||
| 30 | ** | ||
| 31 | ** * frealloc(ud, NULL, x, s) creates a new block of size 's' (no | ||
| 32 | ** matter 'x'). | ||
| 33 | ** | ||
| 34 | ** * frealloc(ud, p, x, 0) frees the block 'p' | ||
| 35 | ** (in this specific case, frealloc must return NULL); | ||
| 36 | ** particularly, frealloc(ud, NULL, 0, 0) does nothing | ||
| 37 | ** (which is equivalent to free(NULL) in ISO C) | ||
| 38 | ** | ||
| 39 | ** frealloc returns NULL if it cannot create or reallocate the area | ||
| 40 | ** (any reallocation to an equal or smaller size cannot fail!) | ||
| 41 | */ | ||
| 42 | |||
| 43 | |||
| 44 | |||
| 45 | #define MINSIZEARRAY 4 | ||
| 46 | |||
| 47 | |||
| 48 | void *luaM_growaux_ (lua_State *L, void *block, int *size, size_t size_elems, | ||
| 49 | int limit, const char *what) { | ||
| 50 | void *newblock; | ||
| 51 | int newsize; | ||
| 52 | if (*size >= limit/2) { /* cannot double it? */ | ||
| 53 | if (*size >= limit) /* cannot grow even a little? */ | ||
| 54 | luaG_runerror(L, "too many %s (limit is %d)", what, limit); | ||
| 55 | newsize = limit; /* still have at least one free place */ | ||
| 56 | } | ||
| 57 | else { | ||
| 58 | newsize = (*size)*2; | ||
| 59 | if (newsize < MINSIZEARRAY) | ||
| 60 | newsize = MINSIZEARRAY; /* minimum size */ | ||
| 61 | } | ||
| 62 | newblock = luaM_reallocv(L, block, *size, newsize, size_elems); | ||
| 63 | *size = newsize; /* update only when everything else is OK */ | ||
| 64 | return newblock; | ||
| 65 | } | ||
| 66 | |||
| 67 | |||
| 68 | l_noret luaM_toobig (lua_State *L) { | ||
| 69 | luaG_runerror(L, "memory allocation error: block too big"); | ||
| 70 | } | ||
| 71 | |||
| 72 | |||
| 73 | |||
| 74 | /* | ||
| 75 | ** generic allocation routine. | ||
| 76 | */ | ||
| 77 | void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) { | ||
| 78 | void *newblock; | ||
| 79 | global_State *g = G(L); | ||
| 80 | size_t realosize = (block) ? osize : 0; | ||
| 81 | lua_assert((realosize == 0) == (block == NULL)); | ||
| 82 | #if defined(HARDMEMTESTS) | ||
| 83 | if (nsize > realosize && g->gcrunning) | ||
| 84 | luaC_fullgc(L, 1); /* force a GC whenever possible */ | ||
| 85 | #endif | ||
| 86 | newblock = (*g->frealloc)(g->ud, block, osize, nsize); | ||
| 87 | if (newblock == NULL && nsize > 0) { | ||
| 88 | lua_assert(nsize > realosize); /* cannot fail when shrinking a block */ | ||
| 89 | if (g->version) { /* is state fully built? */ | ||
| 90 | luaC_fullgc(L, 1); /* try to free some memory... */ | ||
| 91 | newblock = (*g->frealloc)(g->ud, block, osize, nsize); /* try again */ | ||
| 92 | } | ||
| 93 | if (newblock == NULL) | ||
| 94 | luaD_throw(L, LUA_ERRMEM); | ||
| 95 | } | ||
| 96 | lua_assert((nsize == 0) == (newblock == NULL)); | ||
| 97 | g->GCdebt = (g->GCdebt + nsize) - realosize; | ||
| 98 | return newblock; | ||
| 99 | } | ||
| 100 | |||
