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.\" $FreeBSD: src/share/man/man3/pthread_multi_np.3,v 1.7 2007/10/22 10:08:00 ru Exp $
.\" $DragonFly: src/lib/libc_r/man/pthread_multi_np.3,v 1.2 2003/06/17 04:26:48 dillon Exp $
.\"
.Dd July 10, 2009
.Dt PTHREAD_MULTI_NP 3
.Os
.Sh NAME
.Nm pthread_multi_np ,
.Nm pthread_single_np
.Nd "switch between multi- and single-threaded scheduling modes"
.Sh LIBRARY
.Lb libpthread
.Sh SYNOPSIS
.In pthread.h
.In pthread_np.h
.Ft int
.Fn pthread_multi_np void
.Ft int
.Fn pthread_single_np void
.Sh DESCRIPTION
The
.Fn pthread_single_np
function switches the process to a single-threaded mode, i.e.,
suspends all threads except the current.
The semantics of this function is similar to
.Xr pthread_suspend_all_np 3 .
.Pp
The
.Fn pthread_multi_np
function switches the process to a multi-threaded mode.
The semantics of this function is similar to
.Xr pthread_resume_all_np 3 .
.Sh RETURN VALUES
The
.Fn pthread_multi_np
and
.Nm pthread_single_np
functions always return 0.
.Sh SEE ALSO
.Xr pthread_resume_all_np 3 ,
.Xr pthread_suspend_all_np 3
.Sh AUTHORS
This manual page was written by
.An Alexey Zelkin Aq phantom@FreeBSD.org .