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man pages section 2: System Calls

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Updated: Thursday, June 13, 2019
 
 

_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(7) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
MT-Level
Async-Signal-Safe

See Also

sigprocmask(2), kill(2), sigaction(2), signal.h(3HEAD), attributes(7)