NAME
_lwp_wakeup —
make a blocked
light-weight process runnable
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <lwp.h>
int
_lwp_wakeup(
lwpid_t
lwp);
DESCRIPTION
_lwp_wakeup() makes a blocked LWP runnable. The blocked LWP
must be in
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.
RETURN VALUES
Upon successful completion,
_lwp_wakeup() returns a value of
0. Otherwise, an error code is returned to indicate the error.
ERRORS
_lwp_wakeup() will fail if:
-
-
- [
ESRCH
]
- No LWP can be found in the current process corresponding to
that specified by lwp.
-
-
- [
ENODEV
]
- The specified LWP is not in
LSSLEEP
state.
-
-
- [
EBUSY
]
- The specified LWP is blocked in an uninterruptible
sleep.
HISTORY
The
_lwp_wakeup() system call first appeared in
NetBSD 2.0.