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SubjectRe: Attaching PID 0 to a cgroup
On Thu, Jul 3, 2008 at 2:59 PM, Matt Helsley <matthltc@us.ibm.com> wrote:
> ------------
> char buffer[16];
> int fd;
>
> fd = open("/some/cgroup/tasks", O_WRONLY);
>
> /*
> * These two writes produce the same effect: adding this process
> * to /some/cgroup.
> */
> if (the_slightly_shorter_way)
> write(fd, "0", 2);
> else {
> /* The slightly-less-short way */
> snprintf(buffer, 16, "%u", getpid());
> write(fd, buffer, strlen(buffer));

If it's a threaded application, then you'd need gettid() rather than
getpid() for the two to be equivalent.

Paul


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