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Enable EV_READ for downstream connection. 

Removed Downstream::force_resume_read() calls.  Added missing delete
downstream in shrpx_spdy_upstream.cc.  In on_stream_close_callback,
delete downstream even if response state != MSG_COMPLETE. This may
cause segmentaiton fault.
This commit is contained in:
Tatsuhiro Tsujikawa 2012-06-12 21:56:41 +09:00
parent 0ffa4bcb46
commit 6702d34651
3 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
examples/shrpx_downstream_connection.cc
View File

@ -82,7 +82,7 @@ int DownstreamConnection::attach_downstream(Downstream *downstream)
downstream->set_downstream_connection(this);
downstream_ = downstream;
bufferevent_setwatermark(bev_, EV_READ, 0, SHRPX_READ_WARTER_MARK);
bufferevent_disable(bev_, EV_READ);
bufferevent_enable(bev_, EV_READ);
bufferevent_setcb(bev_,
upstream->get_downstream_readcb(),
upstream->get_downstream_writecb(),
@ -134,7 +134,7 @@ void DownstreamConnection::detach_downstream(Downstream *downstream)
}
downstream->set_downstream_connection(0);
downstream_ = 0;
bufferevent_disable(bev_, EV_READ);
bufferevent_enable(bev_, EV_READ);
bufferevent_setcb(bev_, 0, 0, idle_eventcb, this);
client_handler_->pool_downstream_connection(this);
}

1
examples/shrpx_https_upstream.cc
View File

@ -260,7 +260,6 @@ int HttpsUpstream::on_read()
delete downstream;
} else {
pause_read(SHRPX_MSG_BLOCK);
downstream->force_resume_read();
}
}
} else if(htperr == htparse_error_none) {

14
examples/shrpx_spdy_upstream.cc
View File

@ -112,11 +112,11 @@ void on_stream_close_callback
}
}
upstream->remove_downstream(downstream);
delete downstream;
} else {
// At this point, downstream read may be paused. To reclaim
// file descriptor, enable read here and catch read
// notification. And delete downstream there.
downstream->force_resume_read();
// At this point, downstream read may be paused.
upstream->remove_downstream(downstream);
delete downstream;
}
}
}
@ -180,7 +180,6 @@ void on_ctrl_recv_callback
<< downstream;
}
downstream->set_request_state(Downstream::MSG_COMPLETE);
downstream->force_resume_read();
}
break;
}
@ -221,7 +220,6 @@ void on_data_chunk_recv_callback(spdylay_session *session,
<< downstream;
}
downstream->set_request_state(Downstream::MSG_COMPLETE);
downstream->force_resume_read();
}
}
}
@ -301,6 +299,7 @@ int SpdyUpstream::on_write()
return 0;
}
// After this function call, downstream may be deleted.
int SpdyUpstream::send()
{
int rv;
@ -357,6 +356,7 @@ void spdy_downstream_readcb(bufferevent *bev, void *ptr)
dconn = 0;
}
upstream->send();
// At this point, downstream may be deleted.
}
} // namespace
@ -418,6 +418,7 @@ void spdy_downstream_eventcb(bufferevent *bev, short events, void *ptr)
upstream->error_reply(downstream, 502);
downstream->set_response_state(Downstream::MSG_COMPLETE);
upstream->send();
// At this point, downstream may be deleted.
}
}
} else if(events & (BEV_EVENT_ERROR | BEV_EVENT_TIMEOUT)) {
@ -447,6 +448,7 @@ void spdy_downstream_eventcb(bufferevent *bev, short events, void *ptr)
}
downstream->set_response_state(Downstream::MSG_COMPLETE);
upstream->send();
// At this point, downstream may be deleted.
}
}
}