database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-30 19:23:07 +03:00
Code Activity

MCOL-513 Threadpool to unlimited threads when queuesize = 0. Idle down after 10 minutes

Browse Source
This commit is contained in:
David Hall
2017-02-13 11:56:28 -06:00
parent c2344accc9
commit e09b7e10c5
8 changed files with 236 additions and 204 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
utils/threadpool/threadpool.h
View File

@ -74,7 +74,10 @@ public:
* @param maxThreads the maximum number of threads in this pool. This is the maximum number
* of simultaneuous operations that can go on.
* @param queueSize the maximum number of work tasks in the queue. This is the maximum
* number of jobs that can queue up in the work list before invoke() blocks.
* number of jobs that can queue up in the work list before invoke() blocks.
* If 0, then threads never block and total threads may
* exceed maxThreads. Nothing waits. Thread count will
* idle down to maxThreads when less work is required.
*/
EXPORT explicit ThreadPool( size_t maxThreads, size_t queueSize );
@ -108,11 +111,6 @@ public:
*/
inline size_t getMaxThreads() const { return fMaxThreads; }
/** @brief register a functor to be called when a new thread
* is created
*/
EXPORT void setThreadCreatedListener(const Functor_T &f) ;
/** @brief queue size accessor
*
*/
@ -218,9 +216,8 @@ private:
typedef std::list<PoolFunction_T> Container_T;
Container_T fWaitingFunctors;
Container_T::iterator fNextFunctor;
// Functor_T * fThreadCreated;
uint32_t issued;
uint32_t fIssued;
boost::mutex fMutex;
boost::condition fThreadAvailable; // triggered when a thread is available
boost::condition fNeedThread; // triggered when a thread is needed