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PTHREAD_CREATE(3)      FreeBSD Library Functions Manual	     PTHREAD_CREATE(3)

NAME
     pthread_create -- create a	new thread

LIBRARY
     Reentrant C Library (libc_r, -lc_r)
     POSIX Threads Library (libpthread,	-lpthread)
     1:1 Threading Library (libthr, -lthr)

SYNOPSIS
     #include <pthread.h>

     int
     pthread_create(pthread_t *thread, const pthread_attr_t *attr,
	 void *(*start_routine)(void *), void *arg);

DESCRIPTION
     The pthread_create() function is used to create a new thread, with
     attributes	specified by attr, within a process.  If attr is NULL, the
     default attributes	are used.  If the attributes specified by attr are
     modified later, the thread's attributes are not affected.	Upon success-
     ful completion pthread_create() will store	the ID of the created thread
     in	the location specified by thread.

     The thread	is created executing start_routine with	arg as its sole	argu-
     ment.  If the start_routine returns, the effect is	as if there was	an
     implicit call to pthread_exit() using the return value of start_routine
     as	the exit status.  Note that the	thread in which	main() was originally
     invoked differs from this.	 When it returns from main(), the effect is as
     if	there was an implicit call to exit() using the return value of main()
     as	the exit status.

     The signal	state of the new thread	is initialized as:

	   +o   The signal mask is inherited from the creating thread.

	   +o   The set of signals pending for the new thread is	empty.

RETURN VALUES
     If	successful, the	pthread_create() function will return zero.  Otherwise
     an	error number will be returned to indicate the error.

ERRORS
     The pthread_create() function will	fail if:

     [EAGAIN]		The system lacked the necessary	resources to create
			another	thread,	or the system-imposed limit on the
			total number of	threads	in a process
			[PTHREAD_THREADS_MAX] would be exceeded.

     [EINVAL]		The value specified by attr is invalid.

SEE ALSO
     fork(2), pthread_cleanup_pop(3), pthread_cleanup_push(3),
     pthread_exit(3), pthread_join(3)

STANDARDS
     The pthread_create() function conforms to ISO/IEC 9945-1:1996
     (``POSIX.1'').

FreeBSD	9.3			 April 4, 1996			   FreeBSD 9.3

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | STANDARDS

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