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Merge branch '21_enable_debugging'

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This commit is contained in:
Nick Mathewson 2011-09-12 11:31:19 -04:00
commit e20eabd69a
3 changed files with 62 additions and 3 deletions
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19
include/event2/event.h
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@ -640,6 +640,25 @@ typedef void (*event_fatal_cb)(int err);
*/
void event_set_fatal_callback(event_fatal_cb cb);
#define EVENT_DBG_ALL 0xffffffffu
#define EVENT_DBG_NONE 0
/**
Turn on debugging logs and have them sent to the default log handler.
This is a global setting; if you are going to call it, you must call this
before any calls that create an event-base. You must call it before any
multithreaded use of Libevent.
Debug logs are verbose.
@param which Controls which debug messages are turned on. This option is
unused for now; for forward compatibility, you must pass in the constant
"EVENT_DBG_ALL" to turn debugging logs on, or "EVENT_DBG_NONE" to turn
debugging logs off.
*/
void event_enable_debug_logging(ev_uint32_t which);
/**
Associate a different event base with an event.

27
log-internal.h
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@ -39,6 +39,23 @@
#define _EVENT_ERR_ABORT ((int)0xdeaddead)
#define USE_GLOBAL_FOR_DEBUG_LOGGING
#if !defined(_EVENT_DISABLE_DEBUG_MODE) || defined(USE_DEBUG)
#define EVENT_DEBUG_LOGGING_ENABLED
#endif
#ifdef EVENT_DEBUG_LOGGING_ENABLED
#ifdef USE_GLOBAL_FOR_DEBUG_LOGGING
extern ev_uint32_t _event_debug_logging_mask;
#define _event_debug_get_logging_mask() (_event_debug_logging_mask)
#else
ev_uint32_t _event_debug_get_logging_mask(void);
#endif
#else
#define _event_debug_get_logging_mask() (0)
#endif
void event_err(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN;
void event_warn(const char *fmt, ...) EV_CHECK_FMT(1,2);
void event_sock_err(int eval, evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(3,4) EV_NORETURN;
@ -48,10 +65,14 @@ void event_warnx(const char *fmt, ...) EV_CHECK_FMT(1,2);
void event_msgx(const char *fmt, ...) EV_CHECK_FMT(1,2);
void _event_debugx(const char *fmt, ...) EV_CHECK_FMT(1,2);
#ifdef USE_DEBUG
#define event_debug(x) _event_debugx x
#ifdef EVENT_DEBUG_LOGGING_ENABLED
#define event_debug(x) do { \
if (_event_debug_get_logging_mask()) { \
_event_debugx x; \
} \
} while (0)
#else
#define event_debug(x) do {;} while (0)
#define event_debug(x) ((void)0)
#endif
#undef EV_CHECK_FMT

19
log.c
View File

@ -64,6 +64,25 @@ static void event_exit(int errcode) EV_NORETURN;
static event_fatal_cb fatal_fn = NULL;
#ifdef EVENT_DEBUG_LOGGING_ENABLED
#ifdef USE_DEBUG
#define DEFAULT_MASK EVENT_DBG_ALL
#else
#define DEFAULT_MASK 0
#endif
#ifdef USE_GLOBAL_FOR_DEBUG_LOGGING
ev_uint32_t _event_debug_logging_mask = DEFAULT_MASK;
#else
static ev_uint32_t _event_debug_logging_mask = DEFAULT_MASK;
ev_uint32_t
_event_debug_get_logging_mask(void)
{
return _event_debug_logging_mask;
}
#endif
#endif /* EVENT_DEBUG_LOGGING_ENABLED */
void
event_set_fatal_callback(event_fatal_cb cb)
{