pthread_getconcurrency()--Get Process Concurrency Level

Syntax:

 #include <pthread.h>  
 int pthread_getconcurrency();

  Service Program Name: QP0WTCBH

  Default Public Authority: *USE

  Threadsafe: Yes

  Signal Safe: No

The pthread_getconcurrency() function retrieves the current concurrency level for the process. A value of 0 indicates that the threads implementation chooses the concurrency level that best suits the application. A concurrency level greater than zero indicates that the application wishes to inform the system of its desired concurrency level.

The concurrency level is not used by the IBM^® i threads implementation. Each user thread is always bound to a kernel thread.

Authorities and Locks

None.

Parameters

None.

Return Value

value: pthread_getconcurrency() returns the current concurrency level.

Error Conditions

None.

Related Information

The <pthread.h> header file. See Header files for Pthread functions.
pthread_setconcurrency()--Set Process Concurrency Level

API introduced: V4R3

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