Updated: 2022/Sep/29

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_LWP_WAKEUP(2)                System Calls Manual               _LWP_WAKEUP(2)

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
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.

NetBSD 10.99                   December 4, 2022                   NetBSD 10.99