_LWP_KILL(2)              NetBSD System Calls Manual              _LWP_KILL(2)

NAME
     _lwp_kill -- send a signal to a light-weight process

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <lwp.h>

     int
     _lwp_kill(lwpid_t lwp, int sig);

DESCRIPTION
     _lwp_kill() sends the signal specified by sig to the light-weight process
     specified by lwp.  If the sig argument is given as 0 (zero), _lwp_kill
     will test for the existence of the target LWP, but will take no further
     action.

     Job control signals and uncatchable signals can not be directed to a spe-
     cific LWP: if posted with _lwp_kill, they will affect all LWPs in the
     process.

     Signals will be posted successfully to suspended LWPs, but will not be
     handled further until the LWP has been continued.

RETURN VALUES
     A 0 value indicates that the call succeeded.  A -1 return value indicates
     an error occurred and errno is set to indicate the reason.

ERRORS
     [EINVAL]  sig is not a valid signal number.

     [ESRCH]   No LWP can be found in the current process corresponding to
               that specified by lwp.

SEE ALSO
     _lwp_continue(2), _lwp_suspend(2), kill(2), sigaction(2), signal(7)

HISTORY
     The _lwp_kill() system call first appeared in NetBSD 5.0.

NetBSD 8.0                     January 20, 2007                     NetBSD 8.0

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