mirror of
https://github.com/lua/lua
synced 2024-11-26 14:51:21 +03:00
95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
/*
|
|
** $Id: lstate.c,v 1.32 2000/08/09 19:16:57 roberto Exp roberto $
|
|
** Global State
|
|
** See Copyright Notice in lua.h
|
|
*/
|
|
|
|
|
|
#include <stdarg.h>
|
|
|
|
#include "lua.h"
|
|
|
|
#include "lauxlib.h"
|
|
#include "lbuiltin.h"
|
|
#include "ldo.h"
|
|
#include "lgc.h"
|
|
#include "llex.h"
|
|
#include "lmem.h"
|
|
#include "lref.h"
|
|
#include "lstate.h"
|
|
#include "lstring.h"
|
|
#include "ltable.h"
|
|
#include "ltm.h"
|
|
|
|
|
|
lua_State *lua_newstate (int stacksize, int put_builtin) {
|
|
struct lua_longjmp myErrorJmp;
|
|
lua_State *L = luaM_new(NULL, lua_State);
|
|
if (L == NULL) return NULL; /* memory allocation error */
|
|
L->stack = NULL;
|
|
L->strt.size = L->udt.size = 0;
|
|
L->strt.nuse = L->udt.nuse = 0;
|
|
L->strt.hash = NULL;
|
|
L->udt.hash = NULL;
|
|
L->Mbuffer = NULL;
|
|
L->Mbuffbase = 0;
|
|
L->Mbuffsize = 0;
|
|
L->Mbuffnext = 0;
|
|
L->Cblocks = NULL;
|
|
L->numCblocks = 0;
|
|
L->rootproto = NULL;
|
|
L->rootcl = NULL;
|
|
L->roottable = NULL;
|
|
L->IMtable = NULL;
|
|
L->last_tag = -1;
|
|
L->refArray = NULL;
|
|
L->refSize = 0;
|
|
L->refFree = NONEXT;
|
|
L->nblocks = 0;
|
|
L->GCthreshold = MAX_INT; /* to avoid GC during pre-definitions */
|
|
L->callhook = NULL;
|
|
L->linehook = NULL;
|
|
L->allowhooks = 1;
|
|
L->errorJmp = &myErrorJmp;
|
|
if (setjmp(myErrorJmp.b) == 0) { /* to catch memory allocation errors */
|
|
L->gt = luaH_new(L, 10);
|
|
luaD_init(L, (stacksize == 0) ? DEFAULT_STACK_SIZE : stacksize);
|
|
luaS_init(L);
|
|
luaX_init(L);
|
|
luaT_init(L);
|
|
if (put_builtin)
|
|
luaB_predefine(L);
|
|
L->GCthreshold = L->nblocks*4;
|
|
L->errorJmp = NULL;
|
|
return L;
|
|
}
|
|
else { /* memory allocation error: free partial state */
|
|
lua_close(L);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef DEBUG
|
|
extern lua_State *lua_state;
|
|
#endif
|
|
|
|
void lua_close (lua_State *L) {
|
|
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_free(L, L->stack);
|
|
luaM_free(L, L->IMtable);
|
|
luaM_free(L, L->refArray);
|
|
luaM_free(L, L->Mbuffer);
|
|
luaM_free(L, L->Cblocks);
|
|
LUA_ASSERT(L->numCblocks == 0, "Cblocks still open");
|
|
LUA_ASSERT(L->nblocks == 0, "wrong count for nblocks");
|
|
luaM_free(L, L);
|
|
LUA_ASSERT(L != lua_state || memdebug_numblocks == 0, "memory leak!");
|
|
LUA_ASSERT(L != lua_state || memdebug_total == 0,"memory leak!");
|
|
}
|
|
|