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PTHREAD_MAIN_NP(3) Library Functions Manual PTHREAD_MAIN_NP(3)

pthread_main_npidentify the main thread

#include <pthread.h>
#include <pthread_np.h>


The pthread_main_np() function identifies the main thread.

The pthread_main_np() function returns:

if the calling thread is the main thread
if the calling thread is not the main thread
if the thread initialization has not completed

pthread_self(3), pthreads(3)

The pthread_main_np() function is non-portable and may not be supported with the above semantics on other POSIX systems.

June 5, 2013 OpenBSD-current