_LWP_WAKEUP(2) System Calls Manual _LWP_WAKEUP(2)

_lwp_wakeup — make a blocked light-weight process runnable

Standard C Library (libc, -lc)

#include <lwp.h>

int
_lwp_wakeup(lwpid_t lwp);

() 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.

_lwp_wakeup() will fail if:

[]
No LWP can be found in the current process corresponding to that specified by lwp.
[]
The specified LWP is not in LSSLEEP state.
[]
The specified LWP is blocked in an uninterruptible sleep.

The _lwp_wakeup() system call first appeared in NetBSD 2.0.

December 4, 2022 NetBSD 11.0