Set the recursive attribute in mutex attribute object
Synopsis:
#include <pthread.h>
int pthread_mutexattr_setrecursive(
pthread_mutexattr_t* attr,
int recursive );
Arguments:
- attr
- A pointer to the pthread_mutexattr_t object that you
want to set the attribute in.
- recursive
- The new value for the recursive attribute; one of:
- PTHREAD_RECURSIVE_ENABLE — a thread that has
already locked the mutex can lock it again without blocking.
- PTHREAD_RECURSIVE_DISABLE — any thread that tries
to lock the mutex blocks, if that mutex is already locked.
The default value of the recursive attribute is PTHREAD_RECURSIVE_DISABLE.
Library:
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
Description:
The pthread_mutexattr_setrecursive() function sets the recursive
attribute in the mutex attribute object attr to the value given
by recursive.
Returns:
- EOK
- Success.
- EINVAL
- Invalid mutex attribute object, attr, or the value
specified by recursive isn't PTHREAD_RECURSIVE_ENABLE or
PTHREAD_RECURSIVE_DISABLE.
Classification:
QNX Neutrino
Safety: |
|
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |