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shrpx: Send pending response data before RST_STREAM in tunnel connection

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This commit is contained in:
Tatsuhiro Tsujikawa 2013-02-11 02:05:11 +09:00
parent 98d18e647f
commit d830e099a6
3 changed files with 49 additions and 12 deletions
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14
src/shrpx_https_upstream.cc
View File

@ -378,6 +378,20 @@ void https_downstream_readcb(bufferevent *bev, void *ptr)
delete upstream->get_client_handler();
} else if(rv == 0) {
if(downstream->get_response_state() == Downstream::MSG_COMPLETE) {
if(get_config()->client_mode && downstream->tunnel_established()) {
// For tunneled connection, if there is no pending data,
// delete handler because on_write will not be called.
ClientHandler *handler = upstream->get_client_handler();
if(handler->get_pending_write_length() == 0) {
delete handler;
} else {
if(LOG_ENABLED(INFO)) {
DLOG(INFO, downstream) << "Tunneled connection has pending data";
}
handler->set_should_close_after_write(true);
}
return;
}
if(downstream->get_response_connection_close()) {
// Connection close
downstream->set_downstream_connection(0);

13
src/shrpx_spdy_session.cc
View File

@ -697,9 +697,22 @@ void on_ctrl_recv_callback
if(downstream &&
downstream->get_downstream_stream_id() ==
frame->rst_stream.stream_id) {
if(downstream->tunnel_established() &&
downstream->get_response_state() == Downstream::HEADER_COMPLETE) {
// For tunneled connection, we has to submit RST_STREAM to
// upstream *after* whole response body is sent. We just set
// MSG_COMPLETE here. Upstream will take care of that.
if(LOG_ENABLED(INFO)) {
SSLOG(INFO, spdy) << "RST_STREAM against tunneled stream "
<< "stream_id="
<< frame->rst_stream.stream_id;
}
downstream->set_response_state(Downstream::MSG_COMPLETE);
} else {
// If we got RST_STREAM, just flag MSG_RESET to indicate
// upstream connection must be terminated.
downstream->set_response_state(Downstream::MSG_RESET);
}
call_downstream_readcb(spdy, downstream);
}
}

24
src/shrpx_spdy_upstream.cc
View File

@ -543,11 +543,12 @@ void spdy_downstream_eventcb(bufferevent *bev, short events, void *ptr)
ULOG(INFO, upstream) << "Downstream body was ended by EOF";
}
downstream->set_response_state(Downstream::MSG_COMPLETE);
if(downstream->tunnel_established()) {
upstream->rst_stream(downstream, SPDYLAY_INTERNAL_ERROR);
} else {
// For tunneled connection, MSG_COMPLETE signals
// spdy_data_read_callback to send RST_STREAM after pending
// response body is sent. This is needed to ensure that
// RST_STREAM is sent after all pending data are sent.
upstream->on_downstream_body_complete(downstream);
}
} else if(downstream->get_response_state() == Downstream::MSG_COMPLETE) {
// For SSL tunneling?
upstream->rst_stream(downstream, SPDYLAY_INTERNAL_ERROR);
@ -661,11 +662,20 @@ ssize_t spdy_data_read_callback(spdylay_session *session,
evbuffer *body = downstream->get_response_body_buf();
assert(body);
int nread = evbuffer_remove(body, buf, length);
// For tunneling, DATA stream is endless
if(!downstream->tunnel_established() &&
nread == 0 &&
if(nread == 0 &&
downstream->get_response_state() == Downstream::MSG_COMPLETE) {
if(!downstream->tunnel_established()) {
*eof = 1;
} else {
// For tunneling, issue RST_STREAM to finish the stream.
SpdyUpstream *upstream;
upstream = reinterpret_cast<SpdyUpstream*>(downstream->get_upstream());
if(LOG_ENABLED(INFO)) {
ULOG(INFO, upstream) << "RST_STREAM to tunneled stream stream_id="
<< stream_id;
}
upstream->rst_stream(downstream, SPDYLAY_CANCEL);
}
}
if(nread == 0 && *eof != 1) {
return SPDYLAY_ERR_DEFERRED;