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/**
* Copyright (C) 2016 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/repl/oplog_buffer_blocking_queue.h"
namespace mongo {
namespace repl {
namespace {
// Limit buffer to 256MB
const size_t kOplogBufferSize = 256 * 1024 * 1024;
size_t getDocumentSize(const BSONObj& o) {
// SERVER-9808 Avoid Fortify complaint about implicit signed->unsigned conversion
return static_cast<size_t>(o.objsize());
}
} // namespace
OplogBufferBlockingQueue::OplogBufferBlockingQueue() : _queue(kOplogBufferSize, &getDocumentSize) {}
void OplogBufferBlockingQueue::startup(OperationContext*) {}
void OplogBufferBlockingQueue::shutdown(OperationContext* txn) {
clear(txn);
}
void OplogBufferBlockingQueue::pushEvenIfFull(OperationContext*, const Value& value) {
_queue.pushEvenIfFull(value);
}
void OplogBufferBlockingQueue::push(OperationContext*, const Value& value) {
_queue.push(value);
}
bool OplogBufferBlockingQueue::pushAllNonBlocking(OperationContext*,
Batch::const_iterator begin,
Batch::const_iterator end) {
_queue.pushAllNonBlocking(begin, end);
return true;
}
void OplogBufferBlockingQueue::waitForSpace(OperationContext*, std::size_t size) {
_queue.waitForSpace(size);
}
bool OplogBufferBlockingQueue::isEmpty() const {
return _queue.empty();
}
std::size_t OplogBufferBlockingQueue::getMaxSize() const {
return kOplogBufferSize;
}
std::size_t OplogBufferBlockingQueue::getSize() const {
return _queue.size();
}
std::size_t OplogBufferBlockingQueue::getCount() const {
return _queue.count();
}
void OplogBufferBlockingQueue::clear(OperationContext*) {
_queue.clear();
}
bool OplogBufferBlockingQueue::tryPop(OperationContext*, Value* value) {
return _queue.tryPop(*value);
}
bool OplogBufferBlockingQueue::blockingPeek(OperationContext*, Value* value, Seconds waitDuration) {
return _queue.blockingPeek(*value, static_cast<int>(durationCount<Seconds>(waitDuration)));
}
bool OplogBufferBlockingQueue::peek(OperationContext*, Value* value) {
return _queue.peek(*value);
}
boost::optional<OplogBuffer::Value> OplogBufferBlockingQueue::lastObjectPushed(
OperationContext*) const {
return _queue.lastObjectPushed();
}
} // namespace repl
} // namespace mongo
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