X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/f858c11d7d9ca79010dd46a9c8c625e63a9a3ec0..ba55932674cb83c7854344096e778e36394fcaba:/src/redis.c

diff --git a/src/redis.c b/src/redis.c
index a1653c36..6e667f29 100644
--- a/src/redis.c
+++ b/src/redis.c
@@ -74,10 +74,14 @@ struct redisCommand readonlyCommandTable[] = {
     {"setnx",setnxCommand,3,REDIS_CMD_DENYOOM,NULL,0,0,0},
     {"setex",setexCommand,4,REDIS_CMD_DENYOOM,NULL,0,0,0},
     {"append",appendCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
-    {"substr",substrCommand,4,0,NULL,1,1,1},
     {"strlen",strlenCommand,2,0,NULL,1,1,1},
     {"del",delCommand,-2,0,NULL,0,0,0},
     {"exists",existsCommand,2,0,NULL,1,1,1},
+    {"setbit",setbitCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1},
+    {"getbit",getbitCommand,3,0,NULL,1,1,1},
+    {"setrange",setrangeCommand,4,REDIS_CMD_DENYOOM,NULL,1,1,1},
+    {"getrange",getrangeCommand,4,0,NULL,1,1,1},
+    {"substr",getrangeCommand,4,0,NULL,1,1,1},
     {"incr",incrCommand,2,REDIS_CMD_DENYOOM,NULL,1,1,1},
     {"decr",decrCommand,2,REDIS_CMD_DENYOOM,NULL,1,1,1},
     {"mget",mgetCommand,-2,0,NULL,1,-1,1},
@@ -189,11 +193,13 @@ struct redisCommand readonlyCommandTable[] = {
 /*============================ Utility functions ============================ */
 
 void redisLog(int level, const char *fmt, ...) {
+    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 *c = ".-*#";
     char buf[64];
-    time_t now;
+    char msg[REDIS_MAX_LOGMSG_LEN];
 
     if (level < server.verbosity) return;
 
@@ -201,15 +207,16 @@ void redisLog(int level, const char *fmt, ...) {
     if (!fp) return;
 
     va_start(ap, fmt);
-    now = time(NULL);
-    strftime(buf,64,"%d %b %H:%M:%S",localtime(&now));
-    fprintf(fp,"[%d] %s %c ",(int)getpid(),buf,c[level]);
-    vfprintf(fp, fmt, ap);
-    fprintf(fp,"\n");
-    fflush(fp);
+    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);
+
     if (server.logfile) fclose(fp);
+
+    if (server.syslog_enabled) syslog(syslogLevelMap[level], "%s", msg);
 }
 
 /* Redis generally does not try to recover from out of memory conditions
@@ -758,6 +765,9 @@ void initServerConfig() {
     server.saveparams = NULL;
     server.loading = 0;
     server.logfile = NULL; /* NULL = log on standard output */
+    server.syslog_enabled = 0;
+    server.syslog_ident = zstrdup("redis");
+    server.syslog_facility = LOG_LOCAL0;
     server.glueoutputbuf = 1;
     server.daemonize = 0;
     server.appendonly = 0;
@@ -828,6 +838,11 @@ void initServer() {
     signal(SIGPIPE, SIG_IGN);
     setupSigSegvAction();
 
+    if (server.syslog_enabled) {
+        openlog(server.syslog_ident, LOG_PID | LOG_NDELAY | LOG_NOWAIT,
+            server.syslog_facility);
+    }
+
     server.mainthread = pthread_self();
     server.clients = listCreate();
     server.slaves = listCreate();
@@ -876,6 +891,7 @@ void initServer() {
     server.stat_numcommands = 0;
     server.stat_numconnections = 0;
     server.stat_expiredkeys = 0;
+    server.stat_evictedkeys = 0;
     server.stat_starttime = time(NULL);
     server.stat_keyspace_misses = 0;
     server.stat_keyspace_hits = 0;
@@ -1162,6 +1178,7 @@ sds genRedisInfoString(void) {
         "total_connections_received:%lld\r\n"
         "total_commands_processed:%lld\r\n"
         "expired_keys:%lld\r\n"
+        "evicted_keys:%lld\r\n"
         "keyspace_hits:%lld\r\n"
         "keyspace_misses:%lld\r\n"
         "hash_max_zipmap_entries:%zu\r\n"
@@ -1204,6 +1221,7 @@ sds genRedisInfoString(void) {
         server.stat_numconnections,
         server.stat_numcommands,
         server.stat_expiredkeys,
+        server.stat_evictedkeys,
         server.stat_keyspace_hits,
         server.stat_keyspace_misses,
         server.hash_max_zipmap_entries,
@@ -1421,44 +1439,13 @@ void freeMemoryIfNeeded(void) {
             if (bestkey) {
                 robj *keyobj = createStringObject(bestkey,sdslen(bestkey));
                 dbDelete(db,keyobj);
-                server.stat_expiredkeys++;
+                server.stat_evictedkeys++;
                 decrRefCount(keyobj);
                 freed++;
             }
         }
         if (!freed) return; /* nothing to free... */
     }
-
-    while(0) {
-        int j, k, freed = 0;
-        for (j = 0; j < server.dbnum; j++) {
-            int minttl = -1;
-            sds minkey = NULL;
-            robj *keyobj = NULL;
-            struct dictEntry *de;
-
-            if (dictSize(server.db[j].expires)) {
-                freed = 1;
-                /* From a sample of three keys drop the one nearest to
-                 * the natural expire */
-                for (k = 0; k < 3; k++) {
-                    time_t t;
-
-                    de = dictGetRandomKey(server.db[j].expires);
-                    t = (time_t) dictGetEntryVal(de);
-                    if (minttl == -1 || t < minttl) {
-                        minkey = dictGetEntryKey(de);
-                        minttl = t;
-                    }
-                }
-                keyobj = createStringObject(minkey,sdslen(minkey));
-                dbDelete(server.db+j,keyobj);
-                server.stat_expiredkeys++;
-                decrRefCount(keyobj);
-            }
-        }
-        if (!freed) return; /* nothing to free... */
-    }
 }
 
 /* =================================== Main! ================================ */