[DEBUG] add a TRACE macro to facilitate runtime data extraction

The new TRACE macro is used almost like fprintf, except that a session
has to be passed  instead of the file descriptor. It displays infos about
where it is called, session ptr and id, etc...
This commit is contained in:
Willy Tarreau 2008-06-13 22:36:31 +02:00
parent e9bc01e39b
commit 5c6f58fe87

View File

@ -36,4 +36,18 @@
#define FSM_PRINTF(x...)
#endif
/* this one is provided for easy code tracing.
* Usage: TRACE(sess||0, fmt, args...);
* TRACE(sess, "");
*/
#define TRACE(sess, fmt, args...) do { \
fprintf(stderr, \
"%d.%06d [%s:%d %s] [sess %p(%x)] " fmt "\n", \
(int)now.tv_sec, (int)now.tv_usec, \
__FILE__, __LINE__, __FUNCTION__, \
sess, sess?((struct session *)sess)->uniq_id:~0U, \
##args); \
} while (0)
#endif /* _COMMON_DEBUG_H */