$NetBSD: _lwp_wakeup.2,v 1.7 2022/12/04 16:21:54 uwe Exp $
Copyright (c) 2003 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Jason R. Thorpe of Wasabi Systems, Inc.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
.Dd December 4, 2022 .Dt _LWP_WAKEUP 2 .Os .Sh NAME .Nm _lwp_wakeup .Nd make a blocked light-weight process runnable .Sh LIBRARY .Lb libc .Sh SYNOPSIS n lwp.h .Ft int .Fn _lwp_wakeup "lwpid_t lwp" .Sh DESCRIPTION .Fn _lwp_wakeup makes a blocked LWP runnable. The blocked LWP must be in .Dv LSSLEEP state. Unblocking the LWP does not guarantee that it will make progress; it may block again as soon as it resumes execution in the kernel. .Sh RETURN VALUES .Rt -std _lwp_wakeup .Sh ERRORS .Fn _lwp_wakeup will fail if: l -tag -width Er t Bq Er ESRCH No LWP can be found in the current process corresponding to that specified by .Fa lwp . t Bq Er ENODEV The specified LWP is not in .Dv LSSLEEP state. t Bq Er EBUSY The specified LWP is blocked in an uninterruptible sleep. .El .Sh HISTORY The .Fn _lwp_wakeup system call first appeared in .Nx 2.0 .
Copyright (c) 2003 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Jason R. Thorpe of Wasabi Systems, Inc.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
.Dd December 4, 2022 .Dt _LWP_WAKEUP 2 .Os .Sh NAME .Nm _lwp_wakeup .Nd make a blocked light-weight process runnable .Sh LIBRARY .Lb libc .Sh SYNOPSIS n lwp.h .Ft int .Fn _lwp_wakeup "lwpid_t lwp" .Sh DESCRIPTION .Fn _lwp_wakeup makes a blocked LWP runnable. The blocked LWP must be in .Dv LSSLEEP state. Unblocking the LWP does not guarantee that it will make progress; it may block again as soon as it resumes execution in the kernel. .Sh RETURN VALUES .Rt -std _lwp_wakeup .Sh ERRORS .Fn _lwp_wakeup will fail if: l -tag -width Er t Bq Er ESRCH No LWP can be found in the current process corresponding to that specified by .Fa lwp . t Bq Er ENODEV The specified LWP is not in .Dv LSSLEEP state. t Bq Er EBUSY The specified LWP is blocked in an uninterruptible sleep. .El .Sh HISTORY The .Fn _lwp_wakeup system call first appeared in .Nx 2.0 .
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