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server GetField ensure no duplicate reply

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This commit is contained in:
Michael Davidsaver
2017-11-06 16:36:36 -06:00
parent 84a0729bcf
commit 3b565d0c56
4 changed files with 14 additions and 7 deletions
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13
src/server/responseHandlers.cpp
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@@ -2783,20 +2783,25 @@ void ServerGetFieldHandler::getFieldFailureResponse(Transport::shared_pointer co
ServerGetFieldRequesterImpl::ServerGetFieldRequesterImpl(
ServerContextImpl::shared_pointer const & context, ServerChannel::shared_pointer const & channel,
const pvAccessID ioid, Transport::shared_pointer const & transport) :
BaseChannelRequester(context, channel, ioid, transport), _field()
BaseChannelRequester(context, channel, ioid, transport), done(false)
{
}
void ServerGetFieldRequesterImpl::getDone(const Status& status, FieldConstPtr const & field)
{
bool twice;
{
Lock guard(_mutex);
_status = status;
_field = field;
twice = done;
done = true;
}
TransportSender::shared_pointer thisSender = shared_from_this();
_transport->enqueueSendRequest(thisSender);
_channel->completeGetField();
if(!twice) {
TransportSender::shared_pointer thisSender = shared_from_this();
_transport->enqueueSendRequest(thisSender);
}
_channel->completeGetField(this);
}
void ServerGetFieldRequesterImpl::destroy()