pthread_multi_np(3)

NAME

pthread_multi_np, pthread_single_np - switch between multi

and singlethreaded scheduling modes

LIBRARY

library ``libc_r'' library ``libpthread'' library ``libthr''

SYNOPSIS

#include <pthread_np.h>
int
pthread_multi_np(void);
int
pthread_single_np(void);

DESCRIPTION

The pthread_single_np() function switches the process to a

singlethreaded mode, i.e., suspends all threads except the cur

rent. The semantics of this function is similar to pthread_sus

pend_all_np(3).

The pthread_multi_np() function switches the process to a

multi-threaded
mode. The semantics of this function is similar to
pthread_resume_all_np(3).

IMPLEMENTATION NOTES

The pthread_single_np() function is only available in li

brary ``libc_r''
and library ``libpthread''. This function is not implement

ed in library
``libthr''.

RETURN VALUES

The pthread_multi_np() and pthread_single_np functions al

ways return 0.

SEE ALSO

pthread_resume_all_np(3), pthread_suspend_all_np(3)

AUTHORS

This manual page was written by Alexey Zelkin <phan

tom@FreeBSD.org>.

BSD February 13, 2003

BSD