-----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Beman Dawes Sent: Wednesday, May 04, 2005 6:31 AM To: Boost mailing list Subject: [boost] Critique of Boost.Threads
With Kevlin Henney's permission, the following is a repost of a message he recently posted on the C++ committee's library reflector. It gives his views on Boost.Threads in the context of possible standardization.
--Beman
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I have a (newbie) question about the joiner API.
And usage as follows:
void void_task(); int int_task(); ... joiner<void> wait_for_completion = thread(void_task); joiner<int> wait_for_value = thread(int_task); ... int result = wait_for_value(); wait_for_completion();
In the code snippet above does the line "int result = wait_for_value();" block until the completion of the thread? (It must or there is no way of knowing if the value of result is valid.) Is there a way for the client to avoid the block by checking whether or not thread is completed so that the call won't block... Some sort of wait_for_value.is_done()? -- Jon Kalb jonkalb@microsoft.com