Join thread
#include <pthread.h> int pthread_join( pthread_t thread, void** value_ptr );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The pthread_join() function blocks the calling thread until the target thread thread terminates, unless thread has already terminated. If value_ptr is non-NULL and pthread_join() returns successfully, then the value passed to pthread_exit() by the target thread is placed in value_ptr. If the target thread has been canceled then value_ptr is set to PTHREAD_CANCELED.
The non-POSIX pthread_timedjoin() function is similar to pthread_join(), except that an error is returned if the join doesn't occur before a given time. |
The target thread must be joinable. Multiple pthread_join(), pthread_timedjoin(), ThreadJoin(), and ThreadJoin_r() calls on the same target thread aren't allowed. When pthread_join() returns successfully, the target thread has been terminated.
Safety: | |
---|---|
Cancellation point | Yes |
Interrupt handler | No |
Signal handler | Yes |
Thread | Yes |
pthread_create(), pthread_detach(), pthread_exit(), pthread_timedjoin(), ThreadJoin(), ThreadJoin_r()
Processes and Threads chapter of Getting Started with QNX Neutrino