diff options
Diffstat (limited to 'utility/rtos_compatibility_layers/posix/px_pth_self.c')
| -rw-r--r-- | utility/rtos_compatibility_layers/posix/px_pth_self.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/utility/rtos_compatibility_layers/posix/px_pth_self.c b/utility/rtos_compatibility_layers/posix/px_pth_self.c index fd876459..2272fa31 100644 --- a/utility/rtos_compatibility_layers/posix/px_pth_self.c +++ b/utility/rtos_compatibility_layers/posix/px_pth_self.c @@ -74,12 +74,21 @@ pthread_t thread_ID; thread_ID = posix_thread2tid(thread_ptr); - /* Determine if this thread is actually the signal thread helper. */ - if (((POSIX_TCB *) thread_ptr) -> signals.signal_handler) + /* Only a pthread has the signal fields read below: they belong to the + POSIX_TCB that surrounds the thread, and reading them through anything + else runs off the end of a plain TX_THREAD. A zero ID means the caller + is not a pthread, either because it is a ThreadX thread created directly + or because there is no current thread at all, so leave it alone. */ + if (thread_ID != (pthread_t) 0) { - /* Yes, override the thread_ID with the non-signal thread ID. */ - thread_ID = (pthread_t) ((POSIX_TCB *) thread_ptr) -> signals.base_thread_ptr; + /* Determine if this thread is actually the signal thread helper. */ + if (((POSIX_TCB *) thread_ptr) -> signals.signal_handler) + { + + /* Yes, override the thread_ID with the non-signal thread ID. */ + thread_ID = (pthread_t) ((POSIX_TCB *) thread_ptr) -> signals.base_thread_ptr; + } } |