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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2015-05-05 21:11:59 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2015-05-05 21:11:59 +0200 |
| commit | ccbcc0aeed1b69d5eaedd768f3d29cebfb42964d (patch) | |
| tree | b87879bc95e46660b24d923e5f4947c083a9d1d1 /man7/pthreads.7 | |
| parent | 0ad13546b4620a86dd1c595f39dca4aa8538fbb9 (diff) | |
| download | man-pages-ccbcc0aeed1b69d5eaedd768f3d29cebfb42964d.tar.gz | |
pthreads.7: Using thread IDs whose lifetime has expired gives undefined behavior
See https://bugzilla.kernel.org/show_bug.cgi?id=53061
Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man7/pthreads.7')
| -rw-r--r-- | man7/pthreads.7 | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/man7/pthreads.7 b/man7/pthreads.7 index 98eb861870..906b5a08cf 100644 --- a/man7/pthreads.7 +++ b/man7/pthreads.7 @@ -127,8 +127,10 @@ Thread IDs are guaranteed to be unique only within a process. that ID by definition refers to a thread in the same process as the caller.) -A thread ID may be reused after a terminated thread has been joined, +The system may reuse a thread ID after a terminated thread has been joined, or a detached thread has terminated. +POSIX says: "If an application attempts to use a thread ID whose +lifetime has ended, the behavior is undefined." .SS Thread-safe functions A thread-safe function is one that can be safely (i.e., it will deliver the same results regardless of whether it is) |