#915 add seconds since ogserver has been launched

Extend GET /stats to show the number of seconds since the ogserver started.

{
       "time": {
          "now": 1647262765,     /* Seconds since 1970 */
          "boot": 2151909        /* Seconds since boot */
	  "start" : 1647262854,, /* Seconds since 1970 */
       },
       [...]

1 files changed, 1 insertions, 0 deletions

diff --git a/src/core.h b/src/core.h
index dd5cd58..49a646a 100644
--- a/src/core.h
+++ b/src/core.h
@@ -3,6 +3,7 @@
 
 extern int socket_rest, socket_agent_rest;
 extern struct ev_loop *og_loop;
+extern time_t start_time;
 
 int og_socket_server_init(const char *port);
 void og_server_accept_cb(struct ev_loop *loop, struct ev_io *io, int events);