mirror of
https://github.com/Icinga/icinga2.git
synced 2026-02-19 02:29:16 -05:00
91c7e60df8
I've used the following command to replace the original copyright header
lines in a C-style comment block:
```
$ find . \( -type d \( -name '\..*' -o -name third-party -o -name scripts -o -name prefix -o -name malloc -o -name server -o -name docker -o -name build -o -name doc \) -prune \) -o -type f -exec perl -pi -e 's{/\*[^*]*\(\s*c\s*\)\s*(\d{4})\s*Icinga\s+GmbH[^*]*\*/}{// SPDX-FileCopyrightText: \1 Icinga GmbH <https://icinga.com>\n// SPDX-License-Identifier: GPL-2.0-or-later}gi' {} +
```
For files that use shell-style comments (#) like CMakeLists.txt, I've
used this command:
```
$ find . \( -type d \( -name '\..*' -o -name third-party -o -name scripts -o -name prefix -o -name malloc -o -name server -o -name docker -o -name build -o -name doc \) -prune \) -o -type f -exec perl -pi -e 's{#.*\(\s*c\s*\)\s(\d{4})\sIcinga\s+GmbH.*}{# SPDX-FileCopyrightText: \1 Icinga GmbH <https://icinga.com>\n# SPDX-License-Identifier: GPL-2.0-or-later}gi' {} +
```
And for SQL files:
```
$ find . \( -type d \( -name '\..*' -o -name third-party -o -name scripts -o -name prefix -o -name malloc -o -name server -o -name docker -o -name build -o -name doc \) -prune \) -o -type f \( -name '*.sql' \) -exec perl -pi -e 's{--.*\(c\)\s(\d{4})\sIcinga\sGmbH.*}{-- SPDX-FileCopyrightText: \1 Icinga GmbH <https://icinga.com>\n-- SPDX-License-Identifier: GPL-2.0-or-later}gi' {} +
$ find . \( -type d \( -name '\..*' -o -name third-party -o -name scripts -o -name prefix -o -name malloc -o -name server -o -name docker -o -name build -o -name doc \) -prune \) -o -type f \( -name '*.sql' \) -exec perl -pi -e 's{-- Copyright \(c\)\s(\d{4})\sIcinga\s+Development\sTeam.*}{-- SPDX-FileCopyrightText: \1 Icinga GmbH <https://icinga.com>\n-- SPDX-License-Identifier: GPL-2.0-or-later}gi' {} +
```
102 lines
2 KiB
C++
102 lines
2 KiB
C++
// SPDX-FileCopyrightText: 2012 Icinga GmbH <https://icinga.com>
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// SPDX-License-Identifier: GPL-2.0-or-later
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#ifndef THREADPOOL_H
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#define THREADPOOL_H
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#include "base/atomic.hpp"
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#include "base/configuration.hpp"
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#include "base/exception.hpp"
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#include "base/logger.hpp"
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#include <cstddef>
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#include <exception>
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#include <functional>
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#include <memory>
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#include <thread>
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#include <boost/asio/post.hpp>
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#include <boost/asio/thread_pool.hpp>
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#include <boost/thread/locks.hpp>
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#include <boost/thread/shared_mutex.hpp>
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#include <cstdint>
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namespace icinga
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{
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enum SchedulerPolicy
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{
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DefaultScheduler,
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LowLatencyScheduler
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};
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/**
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* A thread pool.
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*
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* @ingroup base
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*/
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class ThreadPool
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{
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public:
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typedef std::function<void ()> WorkFunction;
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ThreadPool();
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~ThreadPool();
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void Start();
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void Stop();
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void Restart();
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/**
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* Appends a work item to the work queue. Work items will be processed in FIFO order.
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*
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* @param callback The callback function for the work item.
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* @returns true if the item was queued, false otherwise.
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*/
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template<class T>
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bool Post(T callback, SchedulerPolicy)
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{
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boost::shared_lock<decltype(m_Mutex)> lock (m_Mutex);
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if (m_Pool) {
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m_Pending.fetch_add(1);
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boost::asio::post(*m_Pool, [this, callback]() {
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m_Pending.fetch_sub(1);
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try {
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callback();
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} catch (const std::exception& ex) {
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Log(LogCritical, "ThreadPool")
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<< "Exception thrown in event handler:\n"
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<< DiagnosticInformation(ex);
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} catch (...) {
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Log(LogCritical, "ThreadPool", "Exception of unknown type thrown in event handler.");
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}
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});
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return true;
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} else {
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return false;
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}
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}
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/**
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* Returns the amount of queued tasks not started yet.
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*
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* @returns amount of queued tasks.
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*/
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inline uint_fast64_t GetPending()
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{
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return m_Pending.load();
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}
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private:
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boost::shared_mutex m_Mutex;
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std::unique_ptr<boost::asio::thread_pool> m_Pool;
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Atomic<uint_fast64_t> m_Pending;
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void InitializePool();
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};
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}
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#endif /* THREADPOOL_H */
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