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`free' gets size of the block: complete control over memory use

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Roberto Ierusalimschy
2000-12-28 10:55:41 -02:00
parent 8c49e19865
commit 0183b8030c
20 changed files with 207 additions and 224 deletions
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23
lstate.c
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@@ -1,5 +1,5 @@
/*
** $Id: lstate.c,v 1.48 2000/10/30 16:29:59 roberto Exp roberto $
** $Id: lstate.c,v 1.49 2000/12/26 18:46:09 roberto Exp roberto $
** Global State
** See Copyright Notice in lua.h
*/
@@ -58,8 +58,8 @@ static void f_luaopen (lua_State *L, void *ud) {
#ifdef LUA_DEBUG
luaB_opentests(L);
if (lua_state == NULL) lua_state = L; /* keep first state to be opened */
#endif
LUA_ASSERT(lua_gettop(L) == 0, "wrong API stack");
#endif
}
@@ -67,10 +67,10 @@ LUA_API lua_State *lua_open (int stacksize) {
lua_State *L = luaM_new(NULL, lua_State);
if (L == NULL) return NULL; /* memory allocation error */
L->stack = NULL;
L->stacksize = 0;
L->strt.size = L->udt.size = 0;
L->strt.nuse = L->udt.nuse = 0;
L->strt.hash = NULL;
L->udt.hash = NULL;
L->strt.hash = L->udt.hash = NULL;
L->Mbuffer = NULL;
L->Mbuffsize = 0;
L->rootproto = NULL;
@@ -106,17 +106,12 @@ LUA_API void lua_close (lua_State *L) {
LUA_ASSERT(L->rootcl == NULL, "list should be empty");
LUA_ASSERT(L->roottable == NULL, "list should be empty");
luaS_freeall(L);
if (L->stack)
L->nblocks -= (L->stack_last - L->stack + 1)*sizeof(TObject);
luaM_free(L, L->stack);
L->nblocks -= L->ntag*sizeof(struct TM);
luaM_free(L, L->TMtable);
L->nblocks -= (L->nref)*sizeof(struct Ref);
luaM_free(L, L->refArray);
L->nblocks -= (L->Mbuffsize)*sizeof(char);
luaM_free(L, L->Mbuffer);
luaM_freearray(L, L->stack, L->stacksize, TObject);
luaM_freearray(L, L->TMtable, L->sizeTM, struct TM);
luaM_freearray(L, L->refArray, L->sizeref, struct Ref);
luaM_freearray(L, L->Mbuffer, L->Mbuffsize, char);
LUA_ASSERT(L->nblocks == sizeof(lua_State), "wrong count for nblocks");
luaM_free(L, L);
luaM_freelem(L, L, lua_State);
LUA_ASSERT(L != lua_state || memdebug_numblocks == 0, "memory leak!");
LUA_ASSERT(L != lua_state || memdebug_total == 0,"memory leak!");
}