_LWP_WAKEUP(2) System Calls Manual _LWP_WAKEUP(2)

NAME

_lwp_wakeupmake 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.
January 13, 2003 NetBSD 6.1