pthread_main_np(3)

NAME

pthread_main_np — identify the main thread

SYNOPSIS

POSIX Threads Library (libpthread, -lpthread)
#include <pthread.h>
#include <pthread_np.h>

int
pthread_main_np(void);

DESCRIPTION

The pthread_main_np() function identifies the main thread.

RETURN VALUES

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

SEE ALSO

pthread_self(3), pthreads(3)

STANDARDS

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