Construct a thread pool with variable worker count.
Declared in <bdlmt_threadpool.h>
ThreadPool(
bslmt::ThreadAttributes const& threadAttributes,
int minThreads,
int maxThreads,
int maxIdleTime,
bslma::Allocator* basicAllocator = 0);Construct a thread pool with the specified threadAttributes, the specified minThreads minimum number of threads, the specified maxThreads maximum number of threads, and the specified maxIdleTime idle time (in milliseconds) after which a thread may be considered for destruction. Optionally specify a basicAllocator used to supply memory. If basicAllocator is 0, the currently installed default allocator is used. The name used for created threads is threadAttributes.threadName() if not empty, otherwise "bdl.ThreadPool". The behavior is undefined unless 0 <= minThreads, minThreads <= maxThreads, and 0 <= maxIdleTime.
| Name | Description |
|---|---|
| threadAttributes | attributes used when creating worker threads |
| minThreads | minimum number of worker threads |
| maxThreads | maximum number of worker threads |
| maxIdleTime | idle time in milliseconds before a thread may exit |
| basicAllocator | memory allocator; null uses the default |