1PID_ALIVE(9)                     Driver Basics                    PID_ALIVE(9)
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NAME

6       pid_alive - check that a task structure is not stale
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SYNOPSIS

9       int pid_alive(const struct task_struct * p);
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ARGUMENTS

12       p
13           Task structure to be checked.
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DESCRIPTION

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

21       1 if the process is alive. 0 otherwise.
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24Kernel Hackers Manual 3.10         June 2019                      PID_ALIVE(9)
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