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Diffstat (limited to 'cpp/src/qpid/sys/AggregateOutput.cpp')
-rw-r--r-- | cpp/src/qpid/sys/AggregateOutput.cpp | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/cpp/src/qpid/sys/AggregateOutput.cpp b/cpp/src/qpid/sys/AggregateOutput.cpp deleted file mode 100644 index fc95f46fb9..0000000000 --- a/cpp/src/qpid/sys/AggregateOutput.cpp +++ /dev/null @@ -1,88 +0,0 @@ -/* - * - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - * - */ - -#include "qpid/sys/AggregateOutput.h" -#include "qpid/log/Statement.h" -#include <algorithm> - -namespace qpid { -namespace sys { - -AggregateOutput::AggregateOutput(OutputControl& c) : busy(false), control(c) {} - -void AggregateOutput::abort() { control.abort(); } - -void AggregateOutput::activateOutput() { control.activateOutput(); } - -void AggregateOutput::giveReadCredit(int32_t credit) { control.giveReadCredit(credit); } - -namespace { -// Clear the busy flag and notify waiting threads in destructor. -struct ScopedBusy { - bool& flag; - Monitor& monitor; - ScopedBusy(bool& f, Monitor& m) : flag(f), monitor(m) { f = true; } - ~ScopedBusy() { flag = false; monitor.notifyAll(); } -}; -} - -bool AggregateOutput::doOutput() { - Mutex::ScopedLock l(lock); - ScopedBusy sb(busy, lock); - - while (!tasks.empty()) { - OutputTask* t=tasks.front(); - tasks.pop_front(); - bool didOutput; - { - // Allow concurrent call to addOutputTask. - // removeOutputTask will wait till !busy before removing a task. - Mutex::ScopedUnlock u(lock); - didOutput = t->doOutput(); - } - if (didOutput) { - tasks.push_back(t); - return true; - } - } - return false; -} - -void AggregateOutput::addOutputTask(OutputTask* task) { - Mutex::ScopedLock l(lock); - tasks.push_back(task); -} - -void AggregateOutput::removeOutputTask(OutputTask* task) { - Mutex::ScopedLock l(lock); - while (busy) lock.wait(); - tasks.erase(std::remove(tasks.begin(), tasks.end(), task), tasks.end()); -} - -void AggregateOutput::removeAll() -{ - Mutex::ScopedLock l(lock); - while (busy) lock.wait(); - tasks.clear(); -} - - -}} // namespace qpid::sys |