swap file name pid expansion removed. Not suited for mission critical…

… software...

redis.c

@@ -4485,7 +4485,6 @@ static void shutdownCommand(redisClient *c) {
                 unlink(server.pidfile);
             redisLog(REDIS_WARNING,"%zu bytes used at exit",zmalloc_used_memory());
             redisLog(REDIS_WARNING,"Server exit now, bye bye...");
-            if (server.vm_enabled) unlink(server.vm_swap_file);
             exit(0);
         } else {
             /* Ooops.. error saving! The best we can do is to continue
@@ -8584,22 +8583,6 @@ static void aofRemoveTempFile(pid_t childpid) {
 
 /* =================== Virtual Memory - Blocking Side  ====================== */
 
-/* substitute the first occurrence of '%p' with the process pid in the
- * swap file name. */
-static void expandVmSwapFilename(void) {
-    char *p = strstr(server.vm_swap_file,"%p");
-    sds new;
-
-    if (!p) return;
-    new = sdsempty();
-    *p = '\0';
-    new = sdscat(new,server.vm_swap_file);
-    new = sdscatprintf(new,"%ld",(long) getpid());
-    new = sdscat(new,p+2);
-    zfree(server.vm_swap_file);
-    server.vm_swap_file = new;
-}
-
 static void vmInit(void) {
     off_t totsize;
     int pipefds[2];
@@ -8609,7 +8592,6 @@ static void vmInit(void) {
     if (server.vm_max_threads != 0)
         zmalloc_enable_thread_safeness(); /* we need thread safe zmalloc() */
 
-    expandVmSwapFilename();
     redisLog(REDIS_NOTICE,"Using '%s' as swap file",server.vm_swap_file);
     /* Try to open the old swap file, otherwise create it */
     if ((server.vm_fp = fopen(server.vm_swap_file,"r+b")) == NULL) {

redis.conf

@@ -206,20 +206,16 @@ vm-enabled no
 
 # This is the path of the Redis swap file. As you can guess, swap files
 # can't be shared by different Redis instances, so make sure to use a swap
-# file for every redis process you are running.
+# file for every redis process you are running. Redis will complain if the
+# swap file is already in use.
 #
-# The swap file name may contain "%p" that is substituted with the PID of
-# the Redis process, so the default name /tmp/redis-%p.vm will work even
-# with multiple instances as Redis will use, for example, redis-811.vm
-# for one instance and redis-593.vm for another one.
-#
-# Useless to say, the best kind of disk for a Redis swap file (that's accessed
-# at random) is a Solid State Disk (SSD).
+# The best kind of storage for the Redis swap file (that's accessed at random) 
+# is a Solid State Disk (SSD).
 #
 # *** WARNING *** if you are using a shared hosting the default of putting
 # the swap file under /tmp is not secure. Create a dir with access granted
 # only to Redis user and configure Redis to create the swap file there.
-vm-swap-file /tmp/redis-%p.vm
+vm-swap-file /tmp/redis.swap
 
 # vm-max-memory configures the VM to use at max the specified amount of
 # RAM. Everything that deos not fit will be swapped on disk *if* possible, that

staticsymbols.h

@@ -1,6 +1,7 @@
 static struct redisFunctionSym symsTable[] = {
 {"IOThreadEntryPoint",(unsigned long)IOThreadEntryPoint},
 {"_redisAssert",(unsigned long)_redisAssert},
+{"_redisPanic",(unsigned long)_redisPanic},
 {"acceptHandler",(unsigned long)acceptHandler},
 {"addReply",(unsigned long)addReply},
 {"addReplyBulk",(unsigned long)addReplyBulk},
@@ -41,6 +42,7 @@ static struct redisFunctionSym symsTable[] = {
 {"createSharedObjects",(unsigned long)createSharedObjects},
 {"createSortOperation",(unsigned long)createSortOperation},
 {"createStringObject",(unsigned long)createStringObject},
+{"createStringObjectFromLongLong",(unsigned long)createStringObjectFromLongLong},
 {"createZsetObject",(unsigned long)createZsetObject},
 {"daemonize",(unsigned long)daemonize},
 {"dbsizeCommand",(unsigned long)dbsizeCommand},
@@ -63,14 +65,15 @@ static struct redisFunctionSym symsTable[] = {
 {"dupStringObject",(unsigned long)dupStringObject},
 {"echoCommand",(unsigned long)echoCommand},
 {"execCommand",(unsigned long)execCommand},
+{"execCommandReplicateMulti",(unsigned long)execCommandReplicateMulti},
 {"existsCommand",(unsigned long)existsCommand},
-{"expandVmSwapFilename",(unsigned long)expandVmSwapFilename},
 {"expireCommand",(unsigned long)expireCommand},
 {"expireGenericCommand",(unsigned long)expireGenericCommand},
 {"expireIfNeeded",(unsigned long)expireIfNeeded},
 {"expireatCommand",(unsigned long)expireatCommand},
 {"feedAppendOnlyFile",(unsigned long)feedAppendOnlyFile},
 {"findFuncName",(unsigned long)findFuncName},
+{"flushAppendOnlyFile",(unsigned long)flushAppendOnlyFile},
 {"flushallCommand",(unsigned long)flushallCommand},
 {"flushdbCommand",(unsigned long)flushdbCommand},
 {"freeClient",(unsigned long)freeClient},
@@ -94,27 +97,47 @@ static struct redisFunctionSym symsTable[] = {
 {"genericZrangebyscoreCommand",(unsigned long)genericZrangebyscoreCommand},
 {"getCommand",(unsigned long)getCommand},
 {"getDecodedObject",(unsigned long)getDecodedObject},
+{"getDoubleFromObject",(unsigned long)getDoubleFromObject},
+{"getDoubleFromObjectOrReply",(unsigned long)getDoubleFromObjectOrReply},
 {"getExpire",(unsigned long)getExpire},
 {"getGenericCommand",(unsigned long)getGenericCommand},
+{"getLongFromObjectOrReply",(unsigned long)getLongFromObjectOrReply},
+{"getLongLongFromObject",(unsigned long)getLongLongFromObject},
+{"getLongLongFromObjectOrReply",(unsigned long)getLongLongFromObjectOrReply},
 {"getMcontextEip",(unsigned long)getMcontextEip},
 {"getsetCommand",(unsigned long)getsetCommand},
 {"glueReplyBuffersIfNeeded",(unsigned long)glueReplyBuffersIfNeeded},
 {"handleClientsBlockedOnSwappedKey",(unsigned long)handleClientsBlockedOnSwappedKey},
 {"handleClientsWaitingListPush",(unsigned long)handleClientsWaitingListPush},
+{"hashCurrent",(unsigned long)hashCurrent},
+{"hashDelete",(unsigned long)hashDelete},
+{"hashExists",(unsigned long)hashExists},
+{"hashGet",(unsigned long)hashGet},
+{"hashInitIterator",(unsigned long)hashInitIterator},
+{"hashLookupWriteOrCreate",(unsigned long)hashLookupWriteOrCreate},
+{"hashNext",(unsigned long)hashNext},
+{"hashReleaseIterator",(unsigned long)hashReleaseIterator},
+{"hashSet",(unsigned long)hashSet},
+{"hashTryConversion",(unsigned long)hashTryConversion},
+{"hashTryObjectEncoding",(unsigned long)hashTryObjectEncoding},
 {"hdelCommand",(unsigned long)hdelCommand},
 {"hexistsCommand",(unsigned long)hexistsCommand},
 {"hgetCommand",(unsigned long)hgetCommand},
 {"hgetallCommand",(unsigned long)hgetallCommand},
 {"hincrbyCommand",(unsigned long)hincrbyCommand},
 {"hkeysCommand",(unsigned long)hkeysCommand},
 {"hlenCommand",(unsigned long)hlenCommand},
+{"hmgetCommand",(unsigned long)hmgetCommand},
+{"hmsetCommand",(unsigned long)hmsetCommand},
 {"hsetCommand",(unsigned long)hsetCommand},
+{"hsetnxCommand",(unsigned long)hsetnxCommand},
 {"htNeedsResize",(unsigned long)htNeedsResize},
 {"hvalsCommand",(unsigned long)hvalsCommand},
 {"incrCommand",(unsigned long)incrCommand},
 {"incrDecrCommand",(unsigned long)incrDecrCommand},
 {"incrRefCount",(unsigned long)incrRefCount},
 {"incrbyCommand",(unsigned long)incrbyCommand},
+{"incrementallyRehash",(unsigned long)incrementallyRehash},
 {"infoCommand",(unsigned long)infoCommand},
 {"initClientMultiState",(unsigned long)initClientMultiState},
 {"initServer",(unsigned long)initServer},
@@ -197,6 +220,7 @@ static struct redisFunctionSym symsTable[] = {
 {"renameCommand",(unsigned long)renameCommand},
 {"renameGenericCommand",(unsigned long)renameGenericCommand},
 {"renamenxCommand",(unsigned long)renamenxCommand},
+{"replicationFeedMonitors",(unsigned long)replicationFeedMonitors},
 {"replicationFeedSlaves",(unsigned long)replicationFeedSlaves},
 {"resetClient",(unsigned long)resetClient},
 {"resetServerSaveParams",(unsigned long)resetServerSaveParams},
@@ -211,6 +235,7 @@ static struct redisFunctionSym symsTable[] = {
 {"sdiffCommand",(unsigned long)sdiffCommand},
 {"sdiffstoreCommand",(unsigned long)sdiffstoreCommand},
 {"sdsDictKeyCompare",(unsigned long)sdsDictKeyCompare},
+{"sdscatrepr",(unsigned long)sdscatrepr},
 {"segvHandler",(unsigned long)segvHandler},
 {"selectCommand",(unsigned long)selectCommand},
 {"selectDb",(unsigned long)selectDb},
@@ -221,6 +246,7 @@ static struct redisFunctionSym symsTable[] = {
 {"setCommand",(unsigned long)setCommand},
 {"setExpire",(unsigned long)setExpire},
 {"setGenericCommand",(unsigned long)setGenericCommand},
+{"setexCommand",(unsigned long)setexCommand},
 {"setnxCommand",(unsigned long)setnxCommand},
 {"setupSigSegvAction",(unsigned long)setupSigSegvAction},
 {"shutdownCommand",(unsigned long)shutdownCommand},