BSD license added to every C source and header file.

[redis.git] / src / redis.c

diff --git a/src/redis.c b/src/redis.c
index effab5eccd16c847d8d34609d14dc399212f813c..1e90edef688c9f3c4c8c284e82a2984a662b2a34 100644 (file)
--- a/src/redis.c
+++ b/src/redis.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2010, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2009-2012, Salvatore Sanfilippo <antirez at gmail dot com>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -240,8 +240,8 @@ struct redisCommand redisCommandTable[] = {
     {"watch",watchCommand,-2,"rs",0,noPreloadGetKeys,1,-1,1,0,0},
     {"unwatch",unwatchCommand,1,"rs",0,NULL,0,0,0,0,0},
     {"cluster",clusterCommand,-2,"ar",0,NULL,0,0,0,0,0},
-    {"restore",restoreCommand,4,"awm",0,NULL,1,1,1,0,0},
-    {"migrate",migrateCommand,6,"aw",0,NULL,0,0,0,0,0},
+    {"restore",restoreCommand,-4,"awm",0,NULL,1,1,1,0,0},
+    {"migrate",migrateCommand,-6,"aw",0,NULL,0,0,0,0,0},
     {"asking",askingCommand,1,"r",0,NULL,0,0,0,0,0},
     {"dump",dumpCommand,2,"ar",0,NULL,1,1,1,0,0},
     {"object",objectCommand,-2,"r",0,NULL,2,2,2,0,0},
@@ -915,8 +915,12 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) {
 
             if (pid == server.rdb_child_pid) {
                 backgroundSaveDoneHandler(exitcode,bysignal);
-            } else {
+            } else if (pid == server.aof_child_pid) {
                 backgroundRewriteDoneHandler(exitcode,bysignal);
+            } else {
+                redisLog(REDIS_WARNING,
+                    "Warning, detected child with unmatched pid: %ld",
+                    (long)pid);
             }
             updateDictResizePolicy();
         }
@@ -1028,7 +1032,7 @@ void createSharedObjects(void) {
     shared.pong = createObject(REDIS_STRING,sdsnew("+PONG\r\n"));
     shared.queued = createObject(REDIS_STRING,sdsnew("+QUEUED\r\n"));
     shared.wrongtypeerr = createObject(REDIS_STRING,sdsnew(
-        "-ERR Operation against a key holding the wrong kind of value\r\n"));
+        "-WRONGTYPE Operation against a key holding the wrong kind of value\r\n"));
     shared.nokeyerr = createObject(REDIS_STRING,sdsnew(
         "-ERR no such key\r\n"));
     shared.syntaxerr = createObject(REDIS_STRING,sdsnew(
@@ -1349,11 +1353,11 @@ void initServer() {
 
     /* 32 bit instances are limited to 4GB of address space, so if there is
      * no explicit limit in the user provided configuration we set a limit
-     * at 3.5GB using maxmemory with 'noeviction' policy'. This saves
-     * useless crashes of the Redis instance. */
+     * at 3 GB using maxmemory with 'noeviction' policy'. This avoids
+     * useless crashes of the Redis instance for out of memory. */
     if (server.arch_bits == 32 && server.maxmemory == 0) {
-        redisLog(REDIS_WARNING,"Warning: 32 bit instance detected but no memory limit set. Setting 3.5 GB maxmemory limit with 'noeviction' policy now.");
-        server.maxmemory = 3584LL*(1024*1024); /* 3584 MB = 3.5 GB */
+        redisLog(REDIS_WARNING,"Warning: 32 bit instance detected but no memory limit set. Setting 3 GB maxmemory limit with 'noeviction' policy now.");
+        server.maxmemory = 3072LL*(1024*1024); /* 3 GB */
         server.maxmemory_policy = REDIS_MAXMEMORY_NO_EVICTION;
     }
 
@@ -1548,7 +1552,7 @@ void call(redisClient *c, int flags) {
 }
 
 /* If this function gets called we already read a whole
- * command, argments are in the client argv/argc fields.
+ * command, arguments are in the client argv/argc fields.
  * processCommand() execute the command or prepare the
  * server for a bulk read from the client.
  *
@@ -2115,7 +2119,10 @@ sds genRedisInfoString(char *section) {
                     (long)server.unixtime-server.repl_down_since);
             }
             info = sdscatprintf(info,
-                "slave_priority:%d\r\n", server.slave_priority);
+                "slave_priority:%d\r\n"
+                "slave_read_only:%d\r\n",
+                server.slave_priority,
+                server.repl_slave_ro);
         }
         info = sdscatprintf(info,
             "connected_slaves:%lu\r\n",
@@ -2226,7 +2233,7 @@ void infoCommand(redisClient *c) {
 }
 
 void monitorCommand(redisClient *c) {
-    /* ignore MONITOR if aleady slave or in monitor mode */
+    /* ignore MONITOR if already slave or in monitor mode */
     if (c->flags & REDIS_SLAVE) return;
 
     c->flags |= (REDIS_SLAVE|REDIS_MONITOR);
@@ -2325,7 +2332,7 @@ int freeMemoryIfNeeded(void) {
 
                     de = dictGetRandomKey(dict);
                     thiskey = dictGetKey(de);
-                    /* When policy is volatile-lru we need an additonal lookup
+                    /* When policy is volatile-lru we need an additional lookup
                      * to locate the real key, as dict is set to db->expires. */
                     if (server.maxmemory_policy == REDIS_MAXMEMORY_VOLATILE_LRU)
                         de = dictFind(db->dict, thiskey);
@@ -2628,7 +2635,7 @@ int main(int argc, char **argv) {
     redisAsciiArt();
 
     if (!server.sentinel_mode) {
-        /* Things only needed when not runnign in Sentinel mode. */
+        /* Things only needed when not running in Sentinel mode. */
         redisLog(REDIS_WARNING,"Server started, Redis version " REDIS_VERSION);
     #ifdef __linux__
         linuxOvercommitMemoryWarning();