TRACEHOOK_REPORT_VFO(9) Kernel Internals TRACEHOOK_REPORT_VFO(9)NAME
tracehook_report_vfork_done - vfork parent's child has exited or exec'd
SYNOPSIS
void tracehook_report_vfork_done(struct task_struct * child, pid_t pid);
ARGUMENTS
child
child task, already running
pid
new child's PID in the parent's namespace
DESCRIPTION
Called after a CLONE_VFORK parent has waited for the child to complete. The clone/vfork system call will return immediately after this. The
child pointer may be invalid if a self-reaping child died and tracehook_report_clone took no action to prevent it from self-reaping.
Called with no locks held.
Kernel Hackers Manual 2.6. July 2010 TRACEHOOK_REPORT_VFO(9)
Check Out this Related Man Page
PCNTL_FORK(3) 1 PCNTL_FORK(3)pcntl_fork - Forks the currently running processSYNOPSIS
int pcntl_fork (void )
DESCRIPTION
The pcntl_fork(3) function creates a child process that differs from the parent process only in its PID and PPID. Please see your system's
fork(2) man page for specific details as to how fork works on your system.
RETURN VALUES
On success, the PID of the child process is returned in the parent's thread of execution, and a 0 is returned in the child's thread of
execution. On failure, a -1 will be returned in the parent's context, no child process will be created, and a PHP error is raised.
EXAMPLES
Example #1
pcntl_fork(3) example
<?php
$pid = pcntl_fork();
if ($pid == -1) {
die('could not fork');
} else if ($pid) {
// we are the parent
pcntl_wait($status); //Protect against Zombie children
} else {
// we are the child
}
?>
SEE ALSO pcntl_waitpid(3), pcntl_signal(3), setproctitle(3).
PHP Documentation Group PCNTL_FORK(3)
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