SYS_TGKILL(9)                             Driver Basics                             SYS_TGKILL(9)



NAME
       sys_tgkill - send signal to one specific thread

SYNOPSIS
       long sys_tgkill(pid_t tgid, pid_t pid, int sig);

ARGUMENTS
       tgid
           the thread group ID of the thread

       pid
           the PID of the thread

       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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                             SYS_TGKILL(9)