HomeServer/lualib-src/lua-memory.c
2024-11-20 15:41:37 +08:00

117 lines
2.0 KiB
C

#define LUA_LIB
#include <lua.h>
#include <lauxlib.h>
#include "malloc_hook.h"
static int
ltotal(lua_State *L) {
size_t t = malloc_used_memory();
lua_pushinteger(L, (lua_Integer)t);
return 1;
}
static int
lblock(lua_State *L) {
size_t t = malloc_memory_block();
lua_pushinteger(L, (lua_Integer)t);
return 1;
}
static int
ldumpinfo(lua_State *L) {
const char *opts = NULL;
if (lua_isstring(L, 1)) {
opts = luaL_checkstring(L,1);
}
memory_info_dump(opts);
return 0;
}
static int
ljestat(lua_State *L) {
static const char* names[] = {
"stats.allocated",
"stats.resident",
"stats.retained",
"stats.mapped",
"stats.active" };
static size_t flush = 1;
mallctl_int64("epoch", &flush); // refresh je.stats.cache
lua_newtable(L);
int i;
for (i = 0; i < (sizeof(names)/sizeof(names[0])); i++) {
lua_pushstring(L, names[i]);
lua_pushinteger(L, (lua_Integer) mallctl_int64(names[i], NULL));
lua_settable(L, -3);
}
return 1;
}
static int
lmallctl(lua_State *L) {
const char *name = luaL_checkstring(L,1);
lua_pushinteger(L, (lua_Integer) mallctl_int64(name, NULL));
return 1;
}
static int
ldump(lua_State *L) {
dump_c_mem();
return 0;
}
static int
lcurrent(lua_State *L) {
lua_pushinteger(L, malloc_current_memory());
return 1;
}
static int
ldumpheap(lua_State *L) {
mallctl_cmd("prof.dump");
return 0;
}
static int
lprofactive(lua_State *L) {
bool *pval, active;
if (lua_isnone(L, 1)) {
pval = NULL;
} else {
active = lua_toboolean(L, 1) ? true : false;
pval = &active;
}
bool ret = mallctl_bool("prof.active", pval);
lua_pushboolean(L, ret);
return 1;
}
LUAMOD_API int
luaopen_skynet_memory(lua_State *L) {
luaL_checkversion(L);
luaL_Reg l[] = {
{ "total", ltotal },
{ "block", lblock },
{ "dumpinfo", ldumpinfo },
{ "jestat", ljestat },
{ "mallctl", lmallctl },
{ "dump", ldump },
{ "info", dump_mem_lua },
{ "current", lcurrent },
{ "dumpheap", ldumpheap },
{ "profactive", lprofactive },
{ NULL, NULL },
};
luaL_newlib(L,l);
return 1;
}