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/proc/thread-self is derived from /proc/self. /proc/thread-self
points to the directory in proc containing information about the
current thread.
This funtionality has been missing for a long time, and is tricky to
implement in userspace as gettid() is not exported by glibc. More
importantly this allows fixing defects in /proc/mounts and /proc/net
where in a threaded application today they wind up being empty files
when only the initial pthread has exited, causing problems for other
threads.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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Eric W. Biederman