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_LWP_KILL(2) 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 specific 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 7.1.2 January 20, 2007 NetBSD 7.1.2