From cf87597226f5d6b269f1f2c4d6f402aa1eccb852 Mon Sep 17 00:00:00 2001 From: Maurus Cuelenaere Date: Thu, 21 May 2009 19:01:41 +0000 Subject: Commit FS#9174: Lua scripting language by Dan Everton git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21020 a1c6a512-1295-4272-9138-f99709370657 --- apps/plugins/lua/lmem.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 apps/plugins/lua/lmem.h (limited to 'apps/plugins/lua/lmem.h') diff --git a/apps/plugins/lua/lmem.h b/apps/plugins/lua/lmem.h new file mode 100644 index 0000000000..97a888c7f8 --- /dev/null +++ b/apps/plugins/lua/lmem.h @@ -0,0 +1,49 @@ +/* +** $Id$ +** Interface to Memory Manager +** See Copyright Notice in lua.h +*/ + +#ifndef lmem_h +#define lmem_h + + +#include + +#include "llimits.h" +#include "lua.h" + +#define MEMERRMSG "not enough memory" + + +#define luaM_reallocv(L,b,on,n,e) \ + ((cast(size_t, (n)+1) <= MAX_SIZET/(e)) ? /* +1 to avoid warnings */ \ + luaM_realloc_(L, (b), (on)*(e), (n)*(e)) : \ + luaM_toobig(L)) + +#define luaM_freemem(L, b, s) luaM_realloc_(L, (b), (s), 0) +#define luaM_free(L, b) luaM_realloc_(L, (b), sizeof(*(b)), 0) +#define luaM_freearray(L, b, n, t) luaM_reallocv(L, (b), n, 0, sizeof(t)) + +#define luaM_malloc(L,t) luaM_realloc_(L, NULL, 0, (t)) +#define luaM_new(L,t) cast(t *, luaM_malloc(L, sizeof(t))) +#define luaM_newvector(L,n,t) \ + cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t))) + +#define luaM_growvector(L,v,nelems,size,t,limit,e) \ + if ((nelems)+1 > (size)) \ + ((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e))) + +#define luaM_reallocvector(L, v,oldn,n,t) \ + ((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t)))) + + +LUAI_FUNC void *luaM_realloc_ (lua_State *L, void *block, size_t oldsize, + size_t size); +LUAI_FUNC void *luaM_toobig (lua_State *L); +LUAI_FUNC void *luaM_growaux_ (lua_State *L, void *block, int *size, + size_t size_elem, int limit, + const char *errormsg); + +#endif + -- cgit v1.2.3