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

This commit is contained in:
Roberto Ierusalimschy
2000-12-28 10:55:41 -02:00
parent 8c49e19865
commit 0183b8030c
20 changed files with 207 additions and 224 deletions

View File

@@ -1,5 +1,5 @@
/*
** $Id: ltable.c,v 1.60 2000/12/04 18:33:40 roberto Exp roberto $
** $Id: ltable.c,v 1.61 2000/12/22 16:57:46 roberto Exp roberto $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
@@ -27,9 +27,6 @@
#include "ltable.h"
#define gcsize(L, n) (sizeof(Hash)+(n)*sizeof(Node))
#define TagDefault LUA_TTABLE
@@ -167,8 +164,6 @@ static void setnodevector (lua_State *L, Hash *t, luint32 size) {
ttype(&t->node[i].key) = ttype(&t->node[i].val) = LUA_TNIL;
t->node[i].next = NULL;
}
L->nblocks -= gcsize(L, t->size); /* old size */
L->nblocks += gcsize(L, size); /* new size */
t->size = size;
t->firstfree = &t->node[size-1]; /* first free position to be used */
}
@@ -181,7 +176,6 @@ Hash *luaH_new (lua_State *L, int size) {
L->roottable = t;
t->mark = t;
t->size = 0;
L->nblocks += gcsize(L, 0);
t->node = NULL;
setnodevector(L, t, luaO_power2(size));
return t;
@@ -189,9 +183,8 @@ Hash *luaH_new (lua_State *L, int size) {
void luaH_free (lua_State *L, Hash *t) {
L->nblocks -= gcsize(L, t->size);
luaM_free(L, t->node);
luaM_free(L, t);
luaM_freearray(L, t->node, t->size, Node);
luaM_freelem(L, t, Hash);
}
@@ -226,7 +219,7 @@ static void rehash (lua_State *L, Hash *t) {
if (ttype(&old->val) != LUA_TNIL)
*luaH_set(L, t, &old->key) = old->val;
}
luaM_free(L, nold); /* free old array */
luaM_freearray(L, nold, oldsize, Node); /* free old array */
}