PID_ALIVE(9)                              Driver Basics                              PID_ALIVE(9)



NAME
       pid_alive - check that a task structure is not stale

SYNOPSIS
       int pid_alive(const struct task_struct * p);

ARGUMENTS
       p
           Task structure to be checked.

DESCRIPTION
       Test if a process is not yet dead (at most zombie state) If pid_alive fails, then pointers
       within the task structure can be stale and must not be dereferenced.

RETURN
       1 if the process is alive. 0 otherwise.

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