debug stat report boot time

Author: cloudwu

lualib-src/trace_service.c

@@ -28,10 +28,6 @@ current_time(struct timespec *ti) {
 
 void 
 diff_time(struct timespec *ti, uint32_t *sec, uint32_t *nsec) {
-if (sec == NULL) {
-current_time(ti);
-return;
-}
 struct timespec end;
 current_time(&end);
 int diffsec = end.tv_sec - ti->tv_sec;

lualib/skynet.lua

@@ -509,6 +509,7 @@ function dbgcmd.STAT()
 local stat = {}
 query_state(stat, "count")
 query_state(stat, "time")
+stat.boottime = debug.getregistry().skynet_boottime
 skynet.ret(skynet.pack(stat))
 end
 

service-src/service_lua.c

@@ -12,6 +12,42 @@
 #include <stdlib.h>
 #include <stdio.h>
 
+// time
+
+#include <time.h>
+#define NANOSEC 1000000000
+
+#if defined(__APPLE__)
+#include <mach/task.h>
+#include <mach/mach.h>
+#endif
+
+static void
+current_time(struct timespec *ti) {
+#if !defined(__APPLE__)
+clock_gettime(CLOCK_THREAD_CPUTIME_ID, ti);
+#else
+struct task_thread_times_info aTaskInfo;
+mach_msg_type_number_t aTaskInfoCount = TASK_THREAD_TIMES_INFO_COUNT;
+assert(KERN_SUCCESS == task_info(mach_task_self(), TASK_THREAD_TIMES_INFO, (task_info_t )&aTaskInfo, &aTaskInfoCount));
+ti->tv_sec = aTaskInfo.user_time.seconds;
+ti->tv_nsec = aTaskInfo.user_time.microseconds * 1000;
+#endif
+}
+
+static double
+diff_time(struct timespec *ti) {
+struct timespec end;
+current_time(&end);
+int diffsec = end.tv_sec - ti->tv_sec;
+int diffnsec = end.tv_nsec - ti->tv_nsec;
+if (diffnsec < 0) {
+--diffsec;
+diffnsec += NANOSEC;
+}
+return (double)diffsec + (double)diffnsec / NANOSEC;
+}
+
 static int
 _try_load(lua_State *L, const char * path, int pathlen, const char * name) {
 int namelen = strlen(name);
@@ -178,7 +214,13 @@ _launch(struct skynet_context * context, void *ud, int type, int session, uint32
 assert(type == 0 && session == 0);
 struct snlua *l = ud;
 skynet_callback(context, NULL, NULL);
-if (_init(l, context, msg)) {
+struct timespec ti;
+current_time(&ti);
+int err = _init(l, context, msg);
+double t = diff_time(&ti);
+lua_pushnumber(l->L, t);
+lua_setfield(l->L, LUA_REGISTRYINDEX, "skynet_boottime");
+if (err) {
 skynet_command(context, "EXIT", NULL);
 }