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OpenSolaris 2009.06 - man page for _lwp_kill (opensolaris section 2)

_lwp_kill(2)							   System Calls 						      _lwp_kill(2)

NAME
_lwp_kill - send a signal to a LWP
SYNOPSIS
#include <sys/lwp.h> #include <signal.h> int _lwp_kill(lwpid_t target_lwp, int sig);
DESCRIPTION
The _lwp_kill() function sends a signal to the LWP specified by target_lwp. The signal that is to be sent is specified by sig and must be one from the list given in signal.h(3HEAD). If sig is 0 (the null signal), error checking is performed but no signal is actually sent. This can be used to check the validity of target_lwp. The target_lwp must be an LWP within the same process as the calling LWP.
RETURN VALUES
Upon successful completion, 0 is returned. A non-zero value indicates an error.
ERRORS
If any of the following conditions occur, _lwp_kill() fails and returns the corresponding value: EINVAL The sig argument is not a valid signal number. ESRCH The target_lwp argument cannot be found in the current process.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |Async-Signal-Safe | +-----------------------------+-----------------------------+
SEE ALSO
kill(2), sigaction(2), sigprocmask(2), signal.h(3HEAD), attributes(5) SunOS 5.11 8 Aug 2001 _lwp_kill(2)