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### 1484. Need a way to join a thread with a timeout

Section: 33.4.3 [thread.thread.class] Status: LEWG Submitter: INCITS Opened: 2010-08-25 Last modified: 2017-03-01

Priority: Not Prioritized

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Discussion:

Addresses US-183

There is no way to join a thread with a timeout.

[ Resolution proposed by ballot comment: ]

> Add `join_for` and `join_until`. Or decide one should never join a thread with a timeout since `pthread_join` doesn't have a timeout version.

[ 2010 Batavia ]

The concurrency working group deemed this an extension beyond the scope of C++0x.

Rationale:

The LWG does not wish to make a change at this time.

[2017-03-01, Kona]

SG1 recommends: Close as NAD

There has not been much demand for it, and it would usually be difficult to deal with `thread_local` destructor races. It can be approximated with a condition variable wait followed by an unconditional `join`. Adding it would create implementation issues on Posix. As always, this may be revisited if we have a paper exploring the issues in detail.

Proposed resolution: