util.pposix: Add meminfo() binding to memory allocation stats provided by mallinfo() [compilation tested on Ubuntu...]
--- a/util-src/pposix.c Sat Jul 07 03:42:31 2012 +0200
+++ b/util-src/pposix.c Sun Jul 08 18:47:05 2012 +0100
@@ -34,6 +34,11 @@
#include "lua.h"
#include "lauxlib.h"
+#if (defined(_SVID_SOURCE) && !defined(WITHOUT_MALLINFO))
+ #include <malloc.h>
+ #define WITH_MALLINFO
+#endif
+
/* Daemonization support */
static int lc_daemonize(lua_State *L)
@@ -612,6 +617,25 @@
return 1;
}
+#ifdef WITH_MALLINFO
+int lc_meminfo(lua_State* L)
+{
+ struct mallinfo info = mallinfo();
+ lua_newtable(L);
+ lua_pushinteger(L, info.arena);
+ lua_setfield(L, -2, "allocated");
+ lua_pushinteger(L, info.hblkhd);
+ lua_setfield(L, -2, "allocated_mmap");
+ lua_pushinteger(L, info.uordblks);
+ lua_setfield(L, -2, "used");
+ lua_pushinteger(L, info.fordblks);
+ lua_setfield(L, -2, "unused");
+ lua_pushinteger(L, info.keepcost);
+ lua_setfield(L, -2, "returnable");
+ return 1;
+}
+#endif
+
/* Register functions */
int luaopen_util_pposix(lua_State *L)
@@ -645,6 +669,10 @@
{ "setenv", lc_setenv },
+#ifdef WITH_MALLINFO
+ { "meminfo", lc_meminfo },
+#endif
+
{ NULL, NULL }
};