NAME
lwp_kill —
send signal to a lwp
LIBRARY
library “libc”
SYNOPSIS
#include
<sys/types.h>
#include <sys/lwp.h>
#include <signal.h>
int
lwp_kill(pid_t
pid, lwpid_t tid,
int sig);
DESCRIPTION
Thelwp_kill()
function sends the signal sig to the lwp specified by
pid and tid. If
pid is -1, the signal will be sent to the current
process. Permission checking and signal behavior is exactly like in
kill(2).
RETURN VALUES
Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error.
ERRORS
Lwp_kill() will fail and no signal will be
sent if:
- [
EINVAL] - sig is not a valid signal number.
- [
ESRCH] - no lwp corresponding to pid and tid can be found.
- [
EPERM] - the sending process is not the super-user and its effective user id does not match the effective user-id of the receiving process.
SEE ALSO
HISTORY
The lwp_kill() function first appeared in
DragonFly 1.9.