Suspends execution of the pthread specified by thread.
Threads Library (libpthreads.a)
#include <pthread.h> int pthread_suspend_np(pthread_t thread); int pthread_continue_np(pthread_t thread);
The pthread_suspend_np routine immediately suspends the execution of the pthread specified by thread. On successful return from pthread_suspend_np, the suspended pthread is no longer executing. If pthread_suspend_np is called for a pthread that is already suspended, the pthread is unchanged and pthread_suspend_np returns successful.
The pthread_continue_np routine resumes the execution of a suspended pthread. If pthread_continue_np is called for a pthread that is not suspended, the pthread is unchanged and pthread_continue_np returns successful.
A suspended pthread will not be awakened by a signal. The signal stays pending until the execution of pthread is resumed by pthread_continue_np.
Note: Using pthread_suspend_np should only be used by advanced users because improper use of this subcommand can lead to application deadlock or the target thread may be suspended holding application locks. Nested suspension is not supported: a pthread that is suspended twice is continued by a single pthread continue.
|thread||Specifies the target thread.|
Zero is returned when successful. A non-zero value indicates an error.
If any of the following conditions occur, pthread_suspend_np and
pthread_continue_np fail and return the corresponding value:
|ESRCH||The thread attribute cannot be found in the current process.|
This subroutine is part of the Base Operating System (BOS) Runtime.