pthread_setconcurrency()

Set the concurrency level for a thread

Synopsis:

#include <pthread.h>

int pthread_setconcurrency( int new_level );

Library:

libc

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:

EOK

Success.

EINVAL

Negative argument new_level.

EAGAIN

The value specified by new_level would cause a system resource to be exceeded.

Classification:

Standard Unix

See also:

pthread_getconcurrency()