Move to struct.

src/networking.c

@@ -41,8 +41,10 @@ redisClient *createClient(int fd) {
     c->reply = listCreate();
     listSetFreeMethod(c->reply,decrRefCount);
     listSetDupMethod(c->reply,dupClientReplyValue);
-    c->blocking_keys = NULL;
-    c->blocking_keys_num = 0;
+    c->bstate.keys = NULL;
+    c->bstate.count = 0;
+    c->bstate.timeout = 0;
+    c->bstate.target = NULL;
     c->io_keys = listCreate();
     c->watched_keys = listCreate();
     listSetFreeMethod(c->io_keys,decrRefCount);
@@ -677,7 +679,7 @@ void closeTimedoutClients(void) {
             redisLog(REDIS_VERBOSE,"Closing idle client");
             freeClient(c);
         } else if (c->flags & REDIS_BLOCKED) {
-            if (c->blockingto != 0 && c->blockingto < now) {
+            if (c->bstate.timeout != 0 && c->bstate.timeout < now) {
                 addReply(c,shared.nullmultibulk);
                 unblockClientWaitingData(c);
             }

src/redis.h

@@ -293,6 +293,16 @@ typedef struct multiState {
     int count;              /* Total number of MULTI commands */
 } multiState;
 
+typedef struct blockingState {
+    robj **keys;            /* The key we are waiting to terminate a blocking
+                             * operation such as BLPOP. Otherwise NULL. */
+    int count;              /* Number of blocking keys */
+    time_t timeout;         /* Blocking operation timeout. If UNIX current time
+                             * is >= timeout then the operation timed out. */
+    robj *target;           /* The key that should receive the element,
+                             * for BRPOPLPUSH. */
+} blockingState;
+
 /* With multiplexing we need to take per-clinet state.
  * Clients are taken in a liked list. */
 typedef struct redisClient {
@@ -316,12 +326,7 @@ typedef struct redisClient {
     long repldboff;         /* replication DB file offset */
     off_t repldbsize;       /* replication DB file size */
     multiState mstate;      /* MULTI/EXEC state */
-    robj **blocking_keys;   /* The key we are waiting to terminate a blocking
-                             * operation such as BLPOP. Otherwise NULL. */
-    int blocking_keys_num;  /* Number of blocking keys */
-    time_t blockingto;      /* Blocking operation timeout. If UNIX current time
-                             * is >= blockingto then the operation timed out. */
-    robj *blocking_target;
+    blockingState bstate;   /* blocking state */
     list *io_keys;          /* Keys this client is waiting to be loaded from the
                              * swap file in order to continue. */
     list *watched_keys;     /* Keys WATCHED for MULTI/EXEC CAS */

src/t_list.c

@@ -694,12 +694,12 @@ void blockForKeys(redisClient *c, robj **keys, int numkeys, time_t timeout) {
     list *l;
     int j;
 
-    c->blocking_keys = zmalloc(sizeof(robj*)*numkeys);
-    c->blocking_keys_num = numkeys;
-    c->blockingto = timeout;
+    c->bstate.keys = zmalloc(sizeof(robj*)*numkeys);
+    c->bstate.count = numkeys;
+    c->bstate.timeout = timeout;
     for (j = 0; j < numkeys; j++) {
         /* Add the key in the client structure, to map clients -> keys */
-        c->blocking_keys[j] = keys[j];
+        c->bstate.keys[j] = keys[j];
         incrRefCount(keys[j]);
 
         /* And in the other "side", to map keys -> clients */
@@ -728,22 +728,22 @@ void unblockClientWaitingData(redisClient *c) {
     list *l;
     int j;
 
-    redisAssert(c->blocking_keys != NULL);
+    redisAssert(c->bstate.keys != NULL);
     /* The client may wait for multiple keys, so unblock it for every key. */
-    for (j = 0; j < c->blocking_keys_num; j++) {
+    for (j = 0; j < c->bstate.count; j++) {
         /* Remove this client from the list of clients waiting for this key. */
-        de = dictFind(c->db->blocking_keys,c->blocking_keys[j]);
+        de = dictFind(c->db->blocking_keys,c->bstate.keys[j]);
         redisAssert(de != NULL);
         l = dictGetEntryVal(de);
         listDelNode(l,listSearchKey(l,c));
         /* If the list is empty we need to remove it to avoid wasting memory */
         if (listLength(l) == 0)
-            dictDelete(c->db->blocking_keys,c->blocking_keys[j]);
-        decrRefCount(c->blocking_keys[j]);
+            dictDelete(c->db->blocking_keys,c->bstate.keys[j]);
+        decrRefCount(c->bstate.keys[j]);
     }
     /* Cleanup the client structure */
-    zfree(c->blocking_keys);
-    c->blocking_keys = NULL;
+    zfree(c->bstate.keys);
+    c->bstate.keys = NULL;
     c->flags &= (~REDIS_BLOCKED);
     server.blpop_blocked_clients--;
     /* We want to process data if there is some command waiting
@@ -777,7 +777,7 @@ int handleClientsWaitingListPush(redisClient *c, robj *key, robj *ele) {
     redisAssert(ln != NULL);
     receiver = ln->value;
 
-    if (receiver->blocking_target == NULL) {
+    if (receiver->bstate.target == NULL) {
       addReplyMultiBulkLen(receiver,2);
       addReplyBulk(receiver,key);
       addReplyBulk(receiver,ele);
@@ -785,7 +785,7 @@ int handleClientsWaitingListPush(redisClient *c, robj *key, robj *ele) {
     else {
       receiver->argc++;
 
-      robj *dobj = lookupKeyWrite(receiver->db,receiver->blocking_target);
+      robj *dobj = lookupKeyWrite(receiver->db,receiver->bstate.target);
       if (dobj && checkType(receiver,dobj,REDIS_LIST)) return 0;
 
       addReplyBulk(receiver,ele);
@@ -793,7 +793,7 @@ int handleClientsWaitingListPush(redisClient *c, robj *key, robj *ele) {
       /* Create the list if the key does not exist */
       if (!dobj) {
           dobj = createZiplistObject();
-          dbAdd(receiver->db,receiver->blocking_target,dobj);
+          dbAdd(receiver->db,receiver->bstate.target,dobj);
       }
 
       listTypePush(dobj,ele,REDIS_HEAD);
@@ -833,7 +833,7 @@ void blockingPopGenericCommand(redisClient *c, int where) {
                     robj *argv[2], **orig_argv;
                     int orig_argc;
 
-                    if (c->blocking_target == NULL) {
+                    if (c->bstate.target == NULL) {
                       /* We need to alter the command arguments before to call
                        * popGenericCommand() as the command takes a single key. */
                       orig_argv = c->argv;
@@ -857,8 +857,8 @@ void blockingPopGenericCommand(redisClient *c, int where) {
                       c->argc = orig_argc;
                     }
                     else {
-                      c->argv[2] = c->blocking_target;
-                      c->blocking_target = NULL;
+                      c->argv[2] = c->bstate.target;
+                      c->bstate.target = NULL;
 
                       rpoplpushCommand(c);
                     }
@@ -891,7 +891,7 @@ void brpopCommand(redisClient *c) {
 }
 
 void brpoplpushCommand(redisClient *c) {
-    c->blocking_target = c->argv[2];
+    c->bstate.target = c->argv[2];
     c->argv[2] = c->argv[3];
     c->argc--;