1/* $NetBSD$ */ 2 3/* 4** Id: lmem.h,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp 5** Interface to Memory Manager 6** See Copyright Notice in lua.h 7*/ 8 9#ifndef lmem_h 10#define lmem_h 11 12 13#include <stddef.h> 14 15#include "llimits.h" 16#include "lua.h" 17 18#define MEMERRMSG "not enough memory" 19 20 21#define luaM_reallocv(L,b,on,n,e) \ 22 ((cast(size_t, (n)+1) <= MAX_SIZET/(e)) ? /* +1 to avoid warnings */ \ 23 luaM_realloc_(L, (b), (on)*(e), (n)*(e)) : \ 24 luaM_toobig(L)) 25 26#define luaM_freemem(L, b, s) luaM_realloc_(L, (b), (s), 0) 27#define luaM_free(L, b) luaM_realloc_(L, (b), sizeof(*(b)), 0) 28#define luaM_freearray(L, b, n, t) luaM_reallocv(L, (b), n, 0, sizeof(t)) 29 30#define luaM_malloc(L,t) luaM_realloc_(L, NULL, 0, (t)) 31#define luaM_new(L,t) cast(t *, luaM_malloc(L, sizeof(t))) 32#define luaM_newvector(L,n,t) \ 33 cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t))) 34 35#define luaM_growvector(L,v,nelems,size,t,limit,e) \ 36 if ((nelems)+1 > (size)) \ 37 ((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e))) 38 39#define luaM_reallocvector(L, v,oldn,n,t) \ 40 ((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t)))) 41 42 43LUAI_FUNC void *luaM_realloc_ (lua_State *L, void *block, size_t oldsize, 44 size_t size); 45LUAI_FUNC void *luaM_toobig (lua_State *L); 46LUAI_FUNC void *luaM_growaux_ (lua_State *L, void *block, int *size, 47 size_t size_elem, int limit, 48 const char *errormsg); 49 50#endif 51 52