issue #151 import LuaJIT's allocator

CMakeLists.txt

@@ -173,7 +173,7 @@ set(LUA_CORE_SRCS src/lapi.c src/lcode.c src/lctype.c src/ldebug.c src/ldo.c src
         src/lfunc.c src/lgc.c src/llex.c src/lmem.c src/lobject.c src/lopcodes.c
         src/lparser.c src/lstate.c src/lstring.c src/ltable.c src/ltm.c src/lundump.c
         src/lvm.c src/lzio.c src/ravijit.cpp src/ltests.c src/ravi_profile.c src/ravi_membuf.c
-        src/ravi_jitshared.c src/bit.c)
+        src/ravi_jitshared.c src/bit.c) # src/ravi_alloc.c)
 if (COMPUTED_GOTO AND NOT MSVC)
     if (CMAKE_C_COMPILER_ID MATCHES "Clang")
         set_source_files_properties(src/lvm.c PROPERTIES COMPILE_FLAGS -DRAVI_USE_COMPUTED_GOTO)

include/ravi_alloc.h

@@ -0,0 +1,15 @@
+/*
+** Bundled memory allocator.
+** Donated to the public domain.
+*/
+
+#ifndef RAVI_ALLOC_H
+#define RAVI_ALLOC_H
+
+#include "ravi_def.h"
+
+LUA_API void *ravi_alloc_create(void);
+LUA_API void ravi_alloc_destroy(void *msp);
+LUA_API void *ravi_alloc_f(void *msp, void *ptr, size_t osize, size_t nsize);
+
+#endif