SYSCALL_DEFINE3

Langue: en

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

Sommaire

NAME

SYSCALL_DEFINE3 - send signal to one specific thread

SYNOPSIS

SYSCALL_DEFINE3(tgkill, int, tgid, int, pid, int, sig);

ARGUMENTS

tgkill

-- undescribed --

int

-- undescribed --

tgid

the thread group ID of the thread

int

-- undescribed --

pid

the PID of the thread

int

-- undescribed --

sig

signal to be sent

DESCRIPTION

This syscall also checks the tgid and returns -ESRCH even if the PID exists but it's not belonging to the target process anymore. This method solves the problem of threads exiting and PIDs getting reused.