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introduced a new logging function for big messages

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This commit is contained in:
antirez 2011-02-09 10:10:35 +01:00
parent a8cc969cd4
commit 9c104c6886
1 changed files with 20 additions and 8 deletions
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28
src/redis.c
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@ -192,24 +192,20 @@ struct redisCommand redisCommandTable[] = {
/*============================ Utility functions ============================ */
void redisLog(int level, const char *fmt, ...) {
/* Low level logging. To use only for very big messages, otherwise
* redisLog() is to prefer. */
void redisLogRaw(int level, const char *msg) {
const int syslogLevelMap[] = { LOG_DEBUG, LOG_INFO, LOG_NOTICE, LOG_WARNING };
const char *c = ".-*#";
time_t now = time(NULL);
va_list ap;
FILE *fp;
char buf[64];
char msg[REDIS_MAX_LOGMSG_LEN];
if (level < server.verbosity) return;
fp = (server.logfile == NULL) ? stdout : fopen(server.logfile,"a");
if (!fp) return;
va_start(ap, fmt);
vsnprintf(msg, sizeof(msg), fmt, ap);
va_end(ap);
strftime(buf,sizeof(buf),"%d %b %H:%M:%S",localtime(&now));
fprintf(fp,"[%d] %s %c %s\n",(int)getpid(),buf,c[level],msg);
fflush(fp);
@ -219,6 +215,22 @@ void redisLog(int level, const char *fmt, ...) {
if (server.syslog_enabled) syslog(syslogLevelMap[level], "%s", msg);
}
/* Like redisLogRaw() but with printf-alike support. This is the funciton that
* is used across the code. The raw version is only used in order to dump
* the INFO output on crash. */
void redisLog(int level, const char *fmt, ...) {
va_list ap;
char msg[REDIS_MAX_LOGMSG_LEN];
if (level < server.verbosity) return;
va_start(ap, fmt);
vsnprintf(msg, sizeof(msg), fmt, ap);
va_end(ap);
redisLogRaw(level,msg);
}
/* Redis generally does not try to recover from out of memory conditions
* when allocating objects or strings, it is not clear if it will be possible
* to report this condition to the client since the networking layer itself
@ -1725,7 +1737,7 @@ void segvHandler(int sig, siginfo_t *info, void *secret) {
redisLog(REDIS_WARNING,
"======= Ooops! Redis %s got signal: -%d- =======", REDIS_VERSION, sig);
infostring = genRedisInfoString("all");
redisLog(REDIS_WARNING, "%s",infostring);
redisLogRaw(REDIS_WARNING, infostring);
/* It's not safe to sdsfree() the returned string under memory
* corruption conditions. Let it leak as we are going to abort */