From 518414dbf7c6d45ca115b080b0fe19f6fdf93cc7 Mon Sep 17 00:00:00 2001 From: Matthew Wild Date: Sun, 8 Jul 2012 18:47:05 +0100 Subject: util.pposix: Add meminfo() binding to memory allocation stats provided by mallinfo() [compilation tested on Ubuntu...] --- util-src/pposix.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/util-src/pposix.c b/util-src/pposix.c index a5a89d55..8dfd6c75 100644 --- a/util-src/pposix.c +++ b/util-src/pposix.c @@ -34,6 +34,11 @@ #include "lua.h" #include "lauxlib.h" +#if (defined(_SVID_SOURCE) && !defined(WITHOUT_MALLINFO)) + #include + #define WITH_MALLINFO +#endif + /* Daemonization support */ static int lc_daemonize(lua_State *L) @@ -612,6 +617,25 @@ int lc_setenv(lua_State* L) 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 @@ int luaopen_util_pposix(lua_State *L) { "setenv", lc_setenv }, +#ifdef WITH_MALLINFO + { "meminfo", lc_meminfo }, +#endif + { NULL, NULL } }; -- cgit v1.2.3