Find substrings to randomize when the client is created

[redis.git] / src / redis.c

diff --git a/src/redis.c b/src/redis.c
index 035ccea8c7cc7d0e48f3996453db3f5ce6ae6714..fb6eb46948a46b7f8f910f0f4d6044b90dcb8d34 100644 (file)
--- a/src/redis.c
+++ b/src/redis.c
@@ -93,6 +93,7 @@ struct redisCommand readonlyCommandTable[] = {
     {"rpop",rpopCommand,2,0,NULL,1,1,1},
     {"lpop",lpopCommand,2,0,NULL,1,1,1},
     {"brpop",brpopCommand,-3,0,NULL,1,1,1},
+    {"brpoplpush",brpoplpushCommand,4,REDIS_CMD_DENYOOM,NULL,1,2,1},
     {"blpop",blpopCommand,-3,0,NULL,1,1,1},
     {"llen",llenCommand,2,0,NULL,1,1,1},
     {"lindex",lindexCommand,3,0,NULL,1,1,1},
@@ -100,7 +101,7 @@ struct redisCommand readonlyCommandTable[] = {
     {"lrange",lrangeCommand,4,0,NULL,1,1,1},
     {"ltrim",ltrimCommand,4,0,NULL,1,1,1},
     {"lrem",lremCommand,4,0,NULL,1,1,1},
-    {"rpoplpush",rpoplpushcommand,3,REDIS_CMD_DENYOOM,NULL,1,2,1},
+    {"rpoplpush",rpoplpushCommand,3,REDIS_CMD_DENYOOM,NULL,1,2,1},
     {"sadd",saddCommand,3,REDIS_CMD_DENYOOM,NULL,1,1,1},
     {"srem",sremCommand,3,0,NULL,1,1,1},
     {"smove",smoveCommand,4,0,NULL,1,2,1},
@@ -192,11 +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;
 
@@ -204,15 +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
@@ -576,7 +580,7 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) {
     }
 
     /* Close connections of timedout clients */
-    if ((server.maxidletime && !(loops % 100)) || server.blpop_blocked_clients)
+    if ((server.maxidletime && !(loops % 100)) || server.bpop_blocked_clients)
         closeTimedoutClients();
 
     /* Check if a background saving or AOF rewrite in progress terminated */
@@ -649,15 +653,16 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) {
  * for ready file descriptors. */
 void beforeSleep(struct aeEventLoop *eventLoop) {
     REDIS_NOTUSED(eventLoop);
+    listNode *ln;
+    redisClient *c;
 
     /* Awake clients that got all the swapped keys they requested */
     if (server.vm_enabled && listLength(server.io_ready_clients)) {
         listIter li;
-        listNode *ln;
 
         listRewind(server.io_ready_clients,&li);
         while((ln = listNext(&li))) {
-            redisClient *c = ln->value;
+            c = ln->value;
             struct redisCommand *cmd;
 
             /* Resume the client. */
@@ -675,6 +680,19 @@ void beforeSleep(struct aeEventLoop *eventLoop) {
                 processInputBuffer(c);
         }
     }
+
+    /* Try to process pending commands for clients that were just unblocked. */
+    while (listLength(server.unblocked_clients)) {
+        ln = listFirst(server.unblocked_clients);
+        redisAssert(ln != NULL);
+        c = ln->value;
+        listDelNode(server.unblocked_clients,ln);
+
+        /* Process remaining data in the input buffer. */
+        if (c->querybuf && sdslen(c->querybuf) > 0)
+            processInputBuffer(c);
+    }
+
     /* Write the AOF buffer on disk */
     flushAppendOnlyFile();
 }
@@ -747,6 +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;
@@ -762,7 +783,7 @@ void initServerConfig() {
     server.rdbcompression = 1;
     server.activerehashing = 1;
     server.maxclients = 0;
-    server.blpop_blocked_clients = 0;
+    server.bpop_blocked_clients = 0;
     server.maxmemory = 0;
     server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU;
     server.maxmemory_samples = 3;
@@ -817,10 +838,16 @@ 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();
     server.monitors = listCreate();
+    server.unblocked_clients = listCreate();
     createSharedObjects();
     server.el = aeCreateEventLoop();
     server.db = zmalloc(sizeof(redisDb)*server.dbnum);
@@ -1173,7 +1200,7 @@ sds genRedisInfoString(void) {
         (float)c_ru.ru_stime.tv_sec+(float)c_ru.ru_stime.tv_usec/1000000,
         listLength(server.clients)-listLength(server.slaves),
         listLength(server.slaves),
-        server.blpop_blocked_clients,
+        server.bpop_blocked_clients,
         zmalloc_used_memory(),
         hmem,
         zmalloc_get_rss(),