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authororivej <orivej@yandex-team.ru>2022-02-10 16:45:01 +0300
committerDaniil Cherednik <dcherednik@yandex-team.ru>2022-02-10 16:45:01 +0300
commit2d37894b1b037cf24231090eda8589bbb44fb6fc (patch)
treebe835aa92c6248212e705f25388ebafcf84bc7a1 /contrib/libs/poco/Foundation/include/Poco/ThreadPool.h
parent718c552901d703c502ccbefdfc3c9028d608b947 (diff)
downloadydb-2d37894b1b037cf24231090eda8589bbb44fb6fc.tar.gz
Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/poco/Foundation/include/Poco/ThreadPool.h')
-rw-r--r--contrib/libs/poco/Foundation/include/Poco/ThreadPool.h416
1 files changed, 208 insertions, 208 deletions
diff --git a/contrib/libs/poco/Foundation/include/Poco/ThreadPool.h b/contrib/libs/poco/Foundation/include/Poco/ThreadPool.h
index 51e707e6a6..fa8bc6cf5c 100644
--- a/contrib/libs/poco/Foundation/include/Poco/ThreadPool.h
+++ b/contrib/libs/poco/Foundation/include/Poco/ThreadPool.h
@@ -1,208 +1,208 @@
-//
-// ThreadPool.h
-//
-// Library: Foundation
-// Package: Threading
-// Module: ThreadPool
-//
-// Definition of the ThreadPool class.
-//
-// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
-// and Contributors.
-//
-// SPDX-License-Identifier: BSL-1.0
-//
-
-
-#ifndef Foundation_ThreadPool_INCLUDED
-#define Foundation_ThreadPool_INCLUDED
-
-
-#include "Poco/Foundation.h"
-#include "Poco/Thread.h"
-#include "Poco/Mutex.h"
-#include <vector>
-
-
-namespace Poco {
-
-
-class Runnable;
-class PooledThread;
-
-
-class Foundation_API ThreadPool
- /// A thread pool always keeps a number of threads running, ready
- /// to accept work.
- /// Creating and starting a threads can impose a significant runtime
- /// overhead to an application. A thread pool helps to improve
- /// the performance of an application by reducing the number
- /// of threads that have to be created (and destroyed again).
- /// Threads in a thread pool are re-used once they become
- /// available again.
- /// The thread pool always keeps a minimum number of threads
- /// running. If the demans for threads increases, additional
- /// threads are created. Once the demand for threads sinks
- /// again, no-longer used threads are stopped and removed
- /// from the pool.
-{
-public:
- ThreadPool(int minCapacity = 2,
- int maxCapacity = 16,
- int idleTime = 60,
- int stackSize = POCO_THREAD_STACK_SIZE);
- /// Creates a thread pool with minCapacity threads.
- /// If required, up to maxCapacity threads are created
- /// a NoThreadAvailableException exception is thrown.
- /// If a thread is running idle for more than idleTime seconds,
- /// and more than minCapacity threads are running, the thread
- /// is killed. Threads are created with given stack size.
-
- ThreadPool(const std::string& name,
- int minCapacity = 2,
- int maxCapacity = 16,
- int idleTime = 60,
- int stackSize = POCO_THREAD_STACK_SIZE);
- /// Creates a thread pool with the given name and minCapacity threads.
- /// If required, up to maxCapacity threads are created
- /// a NoThreadAvailableException exception is thrown.
- /// If a thread is running idle for more than idleTime seconds,
- /// and more than minCapacity threads are running, the thread
- /// is killed. Threads are created with given stack size.
-
- ~ThreadPool();
- /// Currently running threads will remain active
- /// until they complete.
-
- void addCapacity(int n);
- /// Increases (or decreases, if n is negative)
- /// the maximum number of threads.
-
- int capacity() const;
- /// Returns the maximum capacity of threads.
-
- void setStackSize(int stackSize);
- /// Sets the stack size for threads.
- /// New stack size applies only for newly created threads.
-
- int getStackSize() const;
- /// Returns the stack size used to create new threads.
-
- int used() const;
- /// Returns the number of currently used threads.
-
- int allocated() const;
- /// Returns the number of currently allocated threads.
-
- int available() const;
- /// Returns the number available threads.
-
- void start(Runnable& target);
- /// Obtains a thread and starts the target.
- /// Throws a NoThreadAvailableException if no more
- /// threads are available.
-
- void start(Runnable& target, const std::string& name);
- /// Obtains a thread and starts the target.
- /// Assigns the given name to the thread.
- /// Throws a NoThreadAvailableException if no more
- /// threads are available.
-
- void startWithPriority(Thread::Priority priority, Runnable& target);
- /// Obtains a thread, adjusts the thread's priority, and starts the target.
- /// Throws a NoThreadAvailableException if no more
- /// threads are available.
-
- void startWithPriority(Thread::Priority priority, Runnable& target, const std::string& name);
- /// Obtains a thread, adjusts the thread's priority, and starts the target.
- /// Assigns the given name to the thread.
- /// Throws a NoThreadAvailableException if no more
- /// threads are available.
-
- void stopAll();
- /// Stops all running threads and waits for their completion.
- ///
- /// Will also delete all thread objects.
- /// If used, this method should be the last action before
- /// the thread pool is deleted.
- ///
- /// Note: If a thread fails to stop within 10 seconds
- /// (due to a programming error, for example), the
- /// underlying thread object will not be deleted and
- /// this method will return anyway. This allows for a
- /// more or less graceful shutdown in case of a misbehaving
- /// thread.
-
- void joinAll();
- /// Waits for all threads to complete.
- ///
- /// Note that this will not actually join() the underlying
- /// thread, but rather wait for the thread's runnables
- /// to finish.
-
- void collect();
- /// Stops and removes no longer used threads from the
- /// thread pool. Can be called at various times in an
- /// application's life time to help the thread pool
- /// manage its threads. Calling this method is optional,
- /// as the thread pool is also implicitly managed in
- /// calls to start(), addCapacity() and joinAll().
-
- const std::string& name() const;
- /// Returns the name of the thread pool,
- /// or an empty string if no name has been
- /// specified in the constructor.
-
- static ThreadPool& defaultPool();
- /// Returns a reference to the default
- /// thread pool.
-
-protected:
- PooledThread* getThread();
- PooledThread* createThread();
-
- void housekeep();
-
-private:
- ThreadPool(const ThreadPool& pool);
- ThreadPool& operator = (const ThreadPool& pool);
-
- typedef std::vector<PooledThread*> ThreadVec;
-
- std::string _name;
- int _minCapacity;
- int _maxCapacity;
- int _idleTime;
- int _serial;
- int _age;
- int _stackSize;
- ThreadVec _threads;
- mutable FastMutex _mutex;
-};
-
-
-//
-// inlines
-//
-inline void ThreadPool::setStackSize(int stackSize)
-{
- _stackSize = stackSize;
-}
-
-
-inline int ThreadPool::getStackSize() const
-{
- return _stackSize;
-}
-
-
-inline const std::string& ThreadPool::name() const
-{
- return _name;
-}
-
-
-} // namespace Poco
-
-
-#endif // Foundation_ThreadPool_INCLUDED
+//
+// ThreadPool.h
+//
+// Library: Foundation
+// Package: Threading
+// Module: ThreadPool
+//
+// Definition of the ThreadPool class.
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier: BSL-1.0
+//
+
+
+#ifndef Foundation_ThreadPool_INCLUDED
+#define Foundation_ThreadPool_INCLUDED
+
+
+#include "Poco/Foundation.h"
+#include "Poco/Thread.h"
+#include "Poco/Mutex.h"
+#include <vector>
+
+
+namespace Poco {
+
+
+class Runnable;
+class PooledThread;
+
+
+class Foundation_API ThreadPool
+ /// A thread pool always keeps a number of threads running, ready
+ /// to accept work.
+ /// Creating and starting a threads can impose a significant runtime
+ /// overhead to an application. A thread pool helps to improve
+ /// the performance of an application by reducing the number
+ /// of threads that have to be created (and destroyed again).
+ /// Threads in a thread pool are re-used once they become
+ /// available again.
+ /// The thread pool always keeps a minimum number of threads
+ /// running. If the demans for threads increases, additional
+ /// threads are created. Once the demand for threads sinks
+ /// again, no-longer used threads are stopped and removed
+ /// from the pool.
+{
+public:
+ ThreadPool(int minCapacity = 2,
+ int maxCapacity = 16,
+ int idleTime = 60,
+ int stackSize = POCO_THREAD_STACK_SIZE);
+ /// Creates a thread pool with minCapacity threads.
+ /// If required, up to maxCapacity threads are created
+ /// a NoThreadAvailableException exception is thrown.
+ /// If a thread is running idle for more than idleTime seconds,
+ /// and more than minCapacity threads are running, the thread
+ /// is killed. Threads are created with given stack size.
+
+ ThreadPool(const std::string& name,
+ int minCapacity = 2,
+ int maxCapacity = 16,
+ int idleTime = 60,
+ int stackSize = POCO_THREAD_STACK_SIZE);
+ /// Creates a thread pool with the given name and minCapacity threads.
+ /// If required, up to maxCapacity threads are created
+ /// a NoThreadAvailableException exception is thrown.
+ /// If a thread is running idle for more than idleTime seconds,
+ /// and more than minCapacity threads are running, the thread
+ /// is killed. Threads are created with given stack size.
+
+ ~ThreadPool();
+ /// Currently running threads will remain active
+ /// until they complete.
+
+ void addCapacity(int n);
+ /// Increases (or decreases, if n is negative)
+ /// the maximum number of threads.
+
+ int capacity() const;
+ /// Returns the maximum capacity of threads.
+
+ void setStackSize(int stackSize);
+ /// Sets the stack size for threads.
+ /// New stack size applies only for newly created threads.
+
+ int getStackSize() const;
+ /// Returns the stack size used to create new threads.
+
+ int used() const;
+ /// Returns the number of currently used threads.
+
+ int allocated() const;
+ /// Returns the number of currently allocated threads.
+
+ int available() const;
+ /// Returns the number available threads.
+
+ void start(Runnable& target);
+ /// Obtains a thread and starts the target.
+ /// Throws a NoThreadAvailableException if no more
+ /// threads are available.
+
+ void start(Runnable& target, const std::string& name);
+ /// Obtains a thread and starts the target.
+ /// Assigns the given name to the thread.
+ /// Throws a NoThreadAvailableException if no more
+ /// threads are available.
+
+ void startWithPriority(Thread::Priority priority, Runnable& target);
+ /// Obtains a thread, adjusts the thread's priority, and starts the target.
+ /// Throws a NoThreadAvailableException if no more
+ /// threads are available.
+
+ void startWithPriority(Thread::Priority priority, Runnable& target, const std::string& name);
+ /// Obtains a thread, adjusts the thread's priority, and starts the target.
+ /// Assigns the given name to the thread.
+ /// Throws a NoThreadAvailableException if no more
+ /// threads are available.
+
+ void stopAll();
+ /// Stops all running threads and waits for their completion.
+ ///
+ /// Will also delete all thread objects.
+ /// If used, this method should be the last action before
+ /// the thread pool is deleted.
+ ///
+ /// Note: If a thread fails to stop within 10 seconds
+ /// (due to a programming error, for example), the
+ /// underlying thread object will not be deleted and
+ /// this method will return anyway. This allows for a
+ /// more or less graceful shutdown in case of a misbehaving
+ /// thread.
+
+ void joinAll();
+ /// Waits for all threads to complete.
+ ///
+ /// Note that this will not actually join() the underlying
+ /// thread, but rather wait for the thread's runnables
+ /// to finish.
+
+ void collect();
+ /// Stops and removes no longer used threads from the
+ /// thread pool. Can be called at various times in an
+ /// application's life time to help the thread pool
+ /// manage its threads. Calling this method is optional,
+ /// as the thread pool is also implicitly managed in
+ /// calls to start(), addCapacity() and joinAll().
+
+ const std::string& name() const;
+ /// Returns the name of the thread pool,
+ /// or an empty string if no name has been
+ /// specified in the constructor.
+
+ static ThreadPool& defaultPool();
+ /// Returns a reference to the default
+ /// thread pool.
+
+protected:
+ PooledThread* getThread();
+ PooledThread* createThread();
+
+ void housekeep();
+
+private:
+ ThreadPool(const ThreadPool& pool);
+ ThreadPool& operator = (const ThreadPool& pool);
+
+ typedef std::vector<PooledThread*> ThreadVec;
+
+ std::string _name;
+ int _minCapacity;
+ int _maxCapacity;
+ int _idleTime;
+ int _serial;
+ int _age;
+ int _stackSize;
+ ThreadVec _threads;
+ mutable FastMutex _mutex;
+};
+
+
+//
+// inlines
+//
+inline void ThreadPool::setStackSize(int stackSize)
+{
+ _stackSize = stackSize;
+}
+
+
+inline int ThreadPool::getStackSize() const
+{
+ return _stackSize;
+}
+
+
+inline const std::string& ThreadPool::name() const
+{
+ return _name;
+}
+
+
+} // namespace Poco
+
+
+#endif // Foundation_ThreadPool_INCLUDED