table of contents
| 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¶
| April 2023 | Kernel Hackers Manual 2.6. |