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/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2012 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "shrpx_io_control.h"
#include <algorithm>
#include "shrpx_rate_limit.h"
#include "util.h"
using namespace nghttp2;
namespace shrpx {
IOControl::IOControl(RateLimit *lim) : lim_(lim), rdbits_(0) {}
IOControl::~IOControl() {}
void IOControl::pause_read(IOCtrlReason reason) {
rdbits_ |= reason;
if (lim_) {
lim_->stopw();
}
}
bool IOControl::resume_read(IOCtrlReason reason) {
rdbits_ &= ~reason;
if (rdbits_ == 0) {
if (lim_) {
lim_->startw();
}
return true;
}
return false;
}
void IOControl::force_resume_read() {
rdbits_ = 0;
if (lim_) {
lim_->startw();
}
}
} // namespace shrpx
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