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comparison src/lua/lmem.h @ 11:27763b933818

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raise lua sources up one level
author Robert McIntyre <rlm@mit.edu>
date Sat, 03 Mar 2012 11:07:39 -0600
parents src/lua/src/lmem.h@f9f4f1b99eed
children
comparison
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10:48b74a4e4692 11:27763b933818
1 /*
2 ** $Id: lmem.h,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp $
3 ** Interface to Memory Manager
4 ** See Copyright Notice in lua.h
5 */
6
7 #ifndef lmem_h
8 #define lmem_h
9
10
11 #include <stddef.h>
12
13 #include "llimits.h"
14 #include "lua.h"
15
16 #define MEMERRMSG "not enough memory"
17
18
19 #define luaM_reallocv(L,b,on,n,e) \
20 ((cast(size_t, (n)+1) <= MAX_SIZET/(e)) ? /* +1 to avoid warnings */ \
21 luaM_realloc_(L, (b), (on)*(e), (n)*(e)) : \
22 luaM_toobig(L))
23
24 #define luaM_freemem(L, b, s) luaM_realloc_(L, (b), (s), 0)
25 #define luaM_free(L, b) luaM_realloc_(L, (b), sizeof(*(b)), 0)
26 #define luaM_freearray(L, b, n, t) luaM_reallocv(L, (b), n, 0, sizeof(t))
27
28 #define luaM_malloc(L,t) luaM_realloc_(L, NULL, 0, (t))
29 #define luaM_new(L,t) cast(t *, luaM_malloc(L, sizeof(t)))
30 #define luaM_newvector(L,n,t) \
31 cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t)))
32
33 #define luaM_growvector(L,v,nelems,size,t,limit,e) \
34 if ((nelems)+1 > (size)) \
35 ((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e)))
36
37 #define luaM_reallocvector(L, v,oldn,n,t) \
38 ((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t))))
39
40
41 LUAI_FUNC void *luaM_realloc_ (lua_State *L, void *block, size_t oldsize,
42 size_t size);
43 LUAI_FUNC void *luaM_toobig (lua_State *L);
44 LUAI_FUNC void *luaM_growaux_ (lua_State *L, void *block, int *size,
45 size_t size_elem, int limit,
46 const char *errormsg);
47
48 #endif
49