add session id generator

src/log/log.cpp

@@ -6,6 +6,7 @@
 #include <stdarg.h>
 #include <time.h>
 #include <stdlib.h>
+#include <pthread.h>
 
 #include "log.h"
 #include "toml.h"
@@ -276,6 +277,8 @@ void log_print(enum log_level level, const char *module, const char *fmt, ...)
     // add time
     p += snprintf(p, end - p, "%s %s %d %02d:%02d:%02d %d ",
                   weekday_str[local.tm_wday], month_str[local.tm_mon], local.tm_mday, local.tm_hour, local.tm_min, local.tm_sec, local.tm_year + 1900);
+    // add tid
+    p += snprintf(p, end - p, "%lu ", pthread_self());
     // add level
     p += snprintf(p, end - p, "%s ", level_str[level]);
     // add module