]> git.saurik.com Git - redis.git/blobdiff - src/redis.c
SRANDMEMBER <count> leak fixed.
[redis.git] / src / redis.c
index 41e6d559d2f438c2a02902554f2739a27103df5d..193d3bf58b07f82572a5a7c14e890231dc11ebf7 100644 (file)
@@ -152,7 +152,7 @@ struct redisCommand redisCommandTable[] = {
     {"sismember",sismemberCommand,3,"r",0,NULL,1,1,1,0,0},
     {"scard",scardCommand,2,"r",0,NULL,1,1,1,0,0},
     {"spop",spopCommand,2,"wRs",0,NULL,1,1,1,0,0},
-    {"srandmember",srandmemberCommand,2,"rR",0,NULL,1,1,1,0,0},
+    {"srandmember",srandmemberCommand,-2,"rR",0,NULL,1,1,1,0,0},
     {"sinter",sinterCommand,-2,"rS",0,NULL,1,-1,1,0,0},
     {"sinterstore",sinterstoreCommand,-3,"wm",0,NULL,1,-1,1,0,0},
     {"sunion",sunionCommand,-2,"rS",0,NULL,1,-1,1,0,0},
@@ -222,7 +222,7 @@ struct redisCommand redisCommandTable[] = {
     {"replconf",replconfCommand,-1,"ars",0,NULL,0,0,0,0,0},
     {"flushdb",flushdbCommand,1,"w",0,NULL,0,0,0,0,0},
     {"flushall",flushallCommand,1,"w",0,NULL,0,0,0,0,0},
-    {"sort",sortCommand,-2,"wmS",0,NULL,1,1,1,0,0},
+    {"sort",sortCommand,-2,"wm",0,NULL,1,1,1,0,0},
     {"info",infoCommand,-1,"rlt",0,NULL,0,0,0,0,0},
     {"monitor",monitorCommand,1,"ars",0,NULL,0,0,0,0,0},
     {"ttl",ttlCommand,2,"r",0,NULL,1,1,1,0,0},
@@ -332,17 +332,6 @@ err:
     if (server.logfile) close(fd);
 }
 
-/* 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
- * is based on heap allocation for send buffers, so we simply abort.
- * At least the code will be simpler to read... */
-void oom(const char *msg) {
-    redisLog(REDIS_WARNING, "%s: Out of memory\n",msg);
-    sleep(1);
-    abort();
-}
-
 /* Return the UNIX time in microseconds */
 long long ustime(void) {
     struct timeval tv;
@@ -1057,6 +1046,7 @@ void createSharedObjects(void) {
     shared.del = createStringObject("DEL",3);
     shared.rpop = createStringObject("RPOP",4);
     shared.lpop = createStringObject("LPOP",4);
+    shared.lpush = createStringObject("LPUSH",5);
     for (j = 0; j < REDIS_SHARED_INTEGERS; j++) {
         shared.integers[j] = createObject(REDIS_STRING,(void*)(long)j);
         shared.integers[j]->encoding = REDIS_ENCODING_INT;
@@ -1100,6 +1090,7 @@ void initServerConfig() {
     server.aof_last_fsync = time(NULL);
     server.aof_rewrite_time_last = -1;
     server.aof_rewrite_time_start = -1;
+    server.aof_lastbgrewrite_status = REDIS_OK;
     server.aof_delayed_fsync = 0;
     server.aof_fd = -1;
     server.aof_selected_db = -1; /* Make sure the first time will not match */
@@ -1147,6 +1138,7 @@ void initServerConfig() {
     server.repl_serve_stale_data = 1;
     server.repl_slave_ro = 1;
     server.repl_down_since = time(NULL);
+    server.slave_priority = REDIS_DEFAULT_SLAVE_PRIORITY;
 
     /* Client output buffer limits */
     server.client_obuf_limits[REDIS_CLIENT_LIMIT_CLASS_NORMAL].hard_limit_bytes = 0;
@@ -1173,6 +1165,8 @@ void initServerConfig() {
     server.delCommand = lookupCommandByCString("del");
     server.multiCommand = lookupCommandByCString("multi");
     server.lpushCommand = lookupCommandByCString("lpush");
+    server.lpopCommand = lookupCommandByCString("lpop");
+    server.rpopCommand = lookupCommandByCString("rpop");
     
     /* Slow log */
     server.slowlog_log_slower_than = REDIS_SLOWLOG_LOG_SLOWER_THAN;
@@ -1248,6 +1242,7 @@ void initServer() {
     server.slaves = listCreate();
     server.monitors = listCreate();
     server.unblocked_clients = listCreate();
+    server.ready_keys = listCreate();
 
     createSharedObjects();
     adjustOpenFilesLimit();
@@ -1278,6 +1273,7 @@ void initServer() {
         server.db[j].dict = dictCreate(&dbDictType,NULL);
         server.db[j].expires = dictCreate(&keyptrDictType,NULL);
         server.db[j].blocking_keys = dictCreate(&keylistDictType,NULL);
+        server.db[j].ready_keys = dictCreate(&setDictType,NULL);
         server.db[j].watched_keys = dictCreate(&keylistDictType,NULL);
         server.db[j].id = j;
     }
@@ -1313,9 +1309,9 @@ void initServer() {
     server.stop_writes_on_bgsave_err = 1;
     aeCreateTimeEvent(server.el, 1, serverCron, NULL, NULL);
     if (server.ipfd > 0 && aeCreateFileEvent(server.el,server.ipfd,AE_READABLE,
-        acceptTcpHandler,NULL) == AE_ERR) oom("creating file event");
+        acceptTcpHandler,NULL) == AE_ERR) redisPanic("Unrecoverable error creating server.ipfd file event.");
     if (server.sofd > 0 && aeCreateFileEvent(server.el,server.sofd,AE_READABLE,
-        acceptUnixHandler,NULL) == AE_ERR) oom("creating file event");
+        acceptUnixHandler,NULL) == AE_ERR) redisPanic("Unrecoverable error creating server.sofd file event.");
 
     if (server.aof_state == REDIS_AOF_ON) {
         server.aof_fd = open(server.aof_filename,
@@ -1644,6 +1640,8 @@ int processCommand(redisClient *c) {
         addReply(c,shared.queued);
     } else {
         call(c,REDIS_CALL_FULL);
+        if (listLength(server.ready_keys))
+            handleClientsBlockedOnLists();
     }
     return REDIS_OK;
 }
@@ -1920,12 +1918,13 @@ sds genRedisInfoString(char *section) {
             "aof_rewrite_in_progress:%d\r\n"
             "aof_rewrite_scheduled:%d\r\n"
             "aof_last_rewrite_time_sec:%ld\r\n"
-            "aof_current_rewrite_time_sec:%ld\r\n",
+            "aof_current_rewrite_time_sec:%ld\r\n"
+            "aof_last_bgrewrite_status:%s\r\n",
             server.loading,
             server.dirty,
             server.rdb_child_pid != -1,
             server.lastsave,
-            server.lastbgsave_status == REDIS_OK ? "ok" : "err",
+            (server.lastbgsave_status == REDIS_OK) ? "ok" : "err",
             server.rdb_save_time_last,
             (server.rdb_child_pid == -1) ?
                 -1 : time(NULL)-server.rdb_save_time_start,
@@ -1934,7 +1933,8 @@ sds genRedisInfoString(char *section) {
             server.aof_rewrite_scheduled,
             server.aof_rewrite_time_last,
             (server.aof_child_pid == -1) ?
-                -1 : time(NULL)-server.aof_rewrite_time_start);
+                -1 : time(NULL)-server.aof_rewrite_time_start,
+            (server.aof_lastbgrewrite_status == REDIS_OK) ? "ok" : "err");
 
         if (server.aof_state != REDIS_AOF_OFF) {
             info = sdscatprintf(info,
@@ -1942,7 +1942,7 @@ sds genRedisInfoString(char *section) {
                 "aof_base_size:%lld\r\n"
                 "aof_pending_rewrite:%d\r\n"
                 "aof_buffer_length:%zu\r\n"
-                "aof_rewrite_buffer_length:%zu\r\n"
+                "aof_rewrite_buffer_length:%lu\r\n"
                 "aof_pending_bio_fsync:%llu\r\n"
                 "aof_delayed_fsync:%lu\r\n",
                 (long long) server.aof_current_size,
@@ -2040,9 +2040,10 @@ sds genRedisInfoString(char *section) {
 
             if (server.repl_state == REDIS_REPL_TRANSFER) {
                 info = sdscatprintf(info,
-                    "master_sync_left_bytes:%ld\r\n"
+                    "master_sync_left_bytes:%lld\r\n"
                     "master_sync_last_io_seconds_ago:%d\r\n"
-                    ,(long)server.repl_transfer_left,
+                    , (long long)
+                        (server.repl_transfer_size - server.repl_transfer_read),
                     (int)(server.unixtime-server.repl_transfer_lastio)
                 );
             }
@@ -2052,6 +2053,8 @@ sds genRedisInfoString(char *section) {
                     "master_link_down_since_seconds:%ld\r\n",
                     (long)server.unixtime-server.repl_down_since);
             }
+            info = sdscatprintf(info,
+                "slave_priority:%d\r\n", server.slave_priority);
         }
         info = sdscatprintf(info,
             "connected_slaves:%lu\r\n",
@@ -2443,12 +2446,19 @@ void setupSignalHandlers(void) {
 
 void memtest(size_t megabytes, int passes);
 
+void redisOutOfMemoryHandler(size_t allocation_size) {
+    redisLog(REDIS_WARNING,"Out Of Memory allocating %zu bytes!",
+        allocation_size);
+    redisPanic("OOM");
+}
+
 int main(int argc, char **argv) {
     long long start;
     struct timeval tv;
 
     /* We need to initialize our libraries, and the server configuration. */
     zmalloc_enable_thread_safeness();
+    zmalloc_set_oom_handler(redisOutOfMemoryHandler);
     srand(time(NULL)^getpid());
     gettimeofday(&tv,NULL);
     dictSetHashFunctionSeed(tv.tv_sec^tv.tv_usec^getpid());