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Clarify rationale behind issue #43

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This commit is contained in:
Pieter Noordhuis 2011-05-25 15:28:54 +02:00
parent 63dcf9b741
commit 1c29aafd47
1 changed files with 9 additions and 6 deletions
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15
async.c
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@ -361,17 +361,20 @@ void redisProcessCallbacks(redisAsyncContext *ac) {
/* Even if the context is subscribed, pending regular callbacks will
* get a reply before pub/sub messages arrive. */
if (__redisShiftCallback(&ac->replies,&cb) != REDIS_OK) {
// error reply before any callbacks were setup
/* A spontaneous reply in a not-subscribed context can only be the
* error reply that is sent when a new connection exceeds the
* maximum number of allowed connections on the server side. This
* is seen as an error instead of a regular reply because the
* server closes the connection after sending it. To prevent the
* error from being overwritten by an EOF error the connection is
* closed here. See issue #43. */
if ( !(c->flags & REDIS_SUBSCRIBED) && ((redisReply*)reply)->type == REDIS_REPLY_ERROR ) {
c->err = REDIS_ERR_OTHER;
err_len = strlen(((redisReply*)reply)->str);
err_len = err_len < (sizeof(c->errstr)-1) ? err_len : (sizeof(c->errstr)-1);
memcpy(c->errstr, ((redisReply*)reply)->str, err_len);
c->errstr[err_len] = '\0';
snprintf(c->errstr,sizeof(c->errstr),"%s",((redisReply*)reply)->str);
__redisAsyncDisconnect(ac);
return;
}
/* No more regular callbacks and no errors, the context *must* be subscribed. */
/* No more regular callbacks and no errors, the context *must* be subscribed. */
assert(c->flags & REDIS_SUBSCRIBED);
__redisGetSubscribeCallback(ac,reply,&cb);
}