NAME
_lwp_unpark —
resume execution of a
waiting LWP
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <lwp.h>
int
_lwp_unpark(
lwpid_t
lwp,
const void
*hint);
DESCRIPTION
_lwp_unpark() resumes execution of the light-weight process
lwp.
The target LWP is assumed to be waiting in the kernel as a result of a call to
_lwp_park(). If the target LWP is not currently waiting, it
will return immediately upon the next call to
_lwp_park().
See
_lwp_park(2) for a
description of the
hint argument.
RETURN VALUES
A 0 value indicates that the call succeeded. A -1 return value indicates an
error occurred and
errno is set to indicate the reason.
ERRORS
-
-
- [
ESRCH
]
- No LWP can be found in the current process corresponding to
that specified by lwp.
SEE ALSO
_lwp_park(2),
_lwp_unpark_all(2),
_lwp_wakeup(2)
HISTORY
The
_lwp_unpark() system call first appeared in
NetBSD 5.0.