PTHREAD_MAIN_NP(3) BSD Programmer's Manual PTHREAD_MAIN_NP(3)
pthread_main_np - identify the main thread
#include <pthread.h> #include <pthread_np.h> int pthread_main_np(void);
The pthread_main_np() function identifies the main thread.
The pthread_main_np() function returns: 1 if the calling thread is the main thread 0 if the calling thread is not the main thread -1 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. MirBSD #10-current August 17, 2001 1