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thead-specific state separated from "global" state

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This commit is contained in:
Roberto Ierusalimschy
2001-01-19 11:20:30 -02:00
parent f2c451d745
commit 4ac58853dc
19 changed files with 268 additions and 257 deletions
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77
lstate.c
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@@ -1,5 +1,5 @@
/*
** $Id: lstate.c,v 1.49 2000/12/26 18:46:09 roberto Exp roberto $
** $Id: lstate.c,v 1.50 2000/12/28 12:55:41 roberto Exp roberto $
** Global State
** See Copyright Notice in lua.h
*/
@@ -47,6 +47,24 @@ static void f_luaopen (lua_State *L, void *ud) {
stacksize = DEFAULT_STACK_SIZE;
else
stacksize += LUA_MINSTACK;
L->G = luaM_new(L, global_State);
G(L)->strt.size = G(L)->udt.size = 0;
G(L)->strt.nuse = G(L)->udt.nuse = 0;
G(L)->strt.hash = G(L)->udt.hash = NULL;
G(L)->Mbuffer = NULL;
G(L)->Mbuffsize = 0;
G(L)->rootproto = NULL;
G(L)->rootcl = NULL;
G(L)->roottable = NULL;
G(L)->TMtable = NULL;
G(L)->sizeTM = 0;
G(L)->ntag = 0;
G(L)->refArray = NULL;
G(L)->nref = 0;
G(L)->sizeref = 0;
G(L)->refFree = NONEXT;
G(L)->nblocks = sizeof(lua_State) + sizeof(global_State);
G(L)->GCthreshold = MAX_INT; /* to avoid GC during pre-definitions */
L->gt = luaH_new(L, 10); /* table of globals */
luaD_init(L, stacksize);
luaS_init(L);
@@ -58,61 +76,48 @@ 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 */
LUA_ASSERT(lua_gettop(L) == 0, "wrong API stack");
lua_assert(lua_gettop(L) == 0);
#endif
}
LUA_API lua_State *lua_open (int stacksize) {
lua_State *L = luaM_new(NULL, lua_State);
lua_State *L;
L = luaM_new(NULL, lua_State);
if (L == NULL) return NULL; /* memory allocation error */
L->G = NULL;
L->stack = NULL;
L->stacksize = 0;
L->strt.size = L->udt.size = 0;
L->strt.nuse = L->udt.nuse = 0;
L->strt.hash = L->udt.hash = NULL;
L->Mbuffer = NULL;
L->Mbuffsize = 0;
L->rootproto = NULL;
L->rootcl = NULL;
L->roottable = NULL;
L->TMtable = NULL;
L->sizeTM = 0;
L->ntag = 0;
L->refArray = NULL;
L->nref = 0;
L->sizeref = 0;
L->refFree = NONEXT;
L->nblocks = sizeof(lua_State);
L->GCthreshold = MAX_INT; /* to avoid GC during pre-definitions */
L->errorJmp = NULL;
L->callhook = NULL;
L->linehook = NULL;
L->allowhooks = 1;
L->errorJmp = NULL;
if (luaD_runprotected(L, f_luaopen, &stacksize) != 0) {
/* memory allocation error: free partial state */
lua_close(L);
return NULL;
}
L->GCthreshold = 2*L->nblocks;
G(L)->GCthreshold = 2*G(L)->nblocks;
return L;
}
LUA_API void lua_close (lua_State *L) {
LUA_ASSERT(L != lua_state || lua_gettop(L) == 0, "garbage in C stack");
luaC_collect(L, 1); /* collect all elements */
LUA_ASSERT(L->rootproto == NULL, "list should be empty");
LUA_ASSERT(L->rootcl == NULL, "list should be empty");
LUA_ASSERT(L->roottable == NULL, "list should be empty");
luaS_freeall(L);
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_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!");
lua_assert(L != lua_state || lua_gettop(L) == 0);
if (G(L)) { /* close global state */
luaC_collect(L, 1); /* collect all elements */
lua_assert(G(L)->rootproto == NULL);
lua_assert(G(L)->rootcl == NULL);
lua_assert(G(L)->roottable == NULL);
luaS_freeall(L);
luaM_freearray(L, G(L)->TMtable, G(L)->sizeTM, struct TM);
luaM_freearray(L, G(L)->refArray, G(L)->sizeref, struct Ref);
luaM_freearray(L, G(L)->Mbuffer, G(L)->Mbuffsize, char);
luaM_freelem(NULL, L->G, global_State);
}
luaM_freearray(NULL, L->stack, L->stacksize, TObject);
luaM_freelem(NULL, L, lua_State);
lua_assert(L != lua_state || memdebug_numblocks == 0);
lua_assert(L != lua_state || memdebug_total == 0);
}