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.