add ZPOPMAX and more 6 commands

Signed-off-by: hwware <[email protected]>

Author: hwware

src/t_zset.c

@@ -3830,6 +3830,9 @@ void genericZpopCommand(client *c,
     robj *zobj = NULL;
     sds ele;
     double score;
+    long previous_element_number;
+    long current_element_number;
+    long need_to_delete;
 
     if (deleted) *deleted = 0;
 
@@ -3865,7 +3868,9 @@ void genericZpopCommand(client *c,
     if (count == -1) count = 1;
 
     long llen = zsetLength(zobj);
+    previous_element_number = llen;
     long rangelen = (count > llen) ? llen : count;
+    need_to_delete = rangelen;
 
     if (!use_nested_array && !emitkey) {
         /* ZPOPMIN/ZPOPMAX with or without COUNT option in RESP2. */
@@ -3947,6 +3952,9 @@ void genericZpopCommand(client *c,
         notifyKeyspaceEvent(NOTIFY_GENERIC, "del", key, c->db->id);
     }
     signalModifiedKey(c, c->db, key);
+    current_element_number = previous_element_number - need_to_delete;
+    /* TO DO: update INFO KEYSIZES */
+    displayUpdate(previous_element_number, current_element_number);
 
     if (c->cmd->proc == zmpopCommand) {
         /* Always replicate it as ZPOP[MIN|MAX] with COUNT option instead of ZMPOP. */