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pthread_getconcurrency()

Get the level of thread concurrency

Synopsis:

#include <pthread.h>

int pthread_getconcurrency( void );

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

QNX doesn't support the multiplexing of user threads on top of several kernel scheduled entities. As such, the pthread_setconcurrency() and pthread_getconcurrency() functions are provided for source code compatibility but they have no effect when called. To maintain the function semantics, the new_level parameter is saved when pthread_setconcurrency() is called so that a subsequent call to pthread_getconcurrency() returns the same value.

Returns:

The concurrency level set by a previous call to pthread_setconcurrency(), or 0 if there was no previous call.

Classification:

POSIX 1003.1 XSI

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	Yes
Thread	Yes