60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SHRPX_IO_CONTROL_H
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#define SHRPX_IO_CONTROL_H
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#include "shrpx.h"
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#include <vector>
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#include <event.h>
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#include <event2/bufferevent.h>
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namespace shrpx {
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enum IOCtrlReason {
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SHRPX_NO_BUFFER = 1 << 0,
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SHRPX_MSG_BLOCK = 1 << 1
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};
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class IOControl {
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public:
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IOControl(bufferevent *bev);
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~IOControl();
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void set_bev(bufferevent *bev);
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void pause_read(IOCtrlReason reason);
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// Returns true if read operation is enabled after this call
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bool resume_read(IOCtrlReason reason);
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// Clear all pause flags and enable read
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void force_resume_read();
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private:
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bufferevent *bev_;
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uint32_t rdbits_;
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};
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} // namespace shrpx
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#endif // SHRPX_IO_CONTROL_H
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