static void
pumpLogMessages (tr_sys_file_t logfile)
{
const tr_log_message * l;
tr_log_message * list = tr_logGetQueue ();
for (l=list; l!=NULL; l=l->next)
printMessage (logfile, l->level, l->name, l->message, l->file, l->line);
if (logfile != TR_BAD_SYS_FILE)
tr_sys_file_flush (logfile, NULL);
tr_logFreeQueue (list);
}
void
tr_logAddMessage (const char * file,
int line,
tr_log_level level,
const char * name,
const char * fmt,
...)
{
const int err = errno; /* message logging shouldn't affect errno */
char buf[1024];
int buf_len;
va_list ap;
tr_lockLock (getMessageLock ());
/* build the text message */
*buf = '\0';
va_start (ap, fmt);
buf_len = evutil_vsnprintf (buf, sizeof (buf), fmt, ap);
va_end (ap);
if (buf_len < 0)
return;
#ifdef _WIN32
if ((size_t) buf_len < sizeof (buf) - 3)
{
buf[buf_len + 0] = '\r';
buf[buf_len + 1] = '\n';
buf[buf_len + 2] = '\0';
OutputDebugStringA (buf);
buf[buf_len + 0] = '\0';
}
else
{
OutputDebugStringA (buf);
}
#endif
if (*buf)
{
if (tr_logGetQueueEnabled ())
{
tr_log_message * newmsg;
newmsg = tr_new0 (tr_log_message, 1);
newmsg->level = level;
newmsg->when = tr_time ();
newmsg->message = tr_strdup (buf);
newmsg->file = file;
newmsg->line = line;
newmsg->name = tr_strdup (name);
*myQueueTail = newmsg;
myQueueTail = &newmsg->next;
++myQueueLength;
if (myQueueLength > TR_LOG_MAX_QUEUE_LENGTH)
{
tr_log_message * old = myQueue;
myQueue = old->next;
old->next = NULL;
tr_logFreeQueue (old);
--myQueueLength;
assert (myQueueLength == TR_LOG_MAX_QUEUE_LENGTH);
}
}
else
{
tr_sys_file_t fp;
char timestr[64];
fp = tr_logGetFile ();
if (fp == TR_BAD_SYS_FILE)
fp = tr_sys_file_get_std (TR_STD_SYS_FILE_ERR, NULL);
tr_logGetTimeStr (timestr, sizeof (timestr));
if (name)
tr_sys_file_write_fmt (fp, "[%s] %s: %s" TR_NATIVE_EOL_STR, NULL, timestr, name, buf);
else
tr_sys_file_write_fmt (fp, "[%s] %s" TR_NATIVE_EOL_STR, NULL, timestr, buf);
tr_sys_file_flush (fp, NULL);
}
}
tr_lockUnlock (getMessageLock ());
errno = err;
}