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APR 1.0.0 Goes Gold

Posted by michael on from the run-anywhere dept.

cliffwoolley writes "After several years of development, the Apache Portable Runtime, which is the portability library underlying the Apache HTTP Server 2.x, has finally reached its own 1.0.0 release. If you want to write a portable app without the headaches, APR is the way to do it. Grab a copy and check it out. The full announcement is here."

1 of 111 comments (clear)

  1. Follow up - I took a quick look at the source. by xyote · · Score: 5, Insightful
    For the atomic operations, the intel based code is ok since the lock prefix serializes memory. The powerpc load reserved / store conditional do not however and explicit memory barriers are required and they are not there. That's bad.

    For the win32 version of condvar, I don't think a win32 Event isn't going to hack it. The current logic allows a condvar to remain signaled until the all waiters have woken up and have decremented the use count to zero. This could lead to a lot of spurious wakeups if some waiting thread takes it time to wake up. The APR authors need to read that Schmidt document I mentioned earlier and maybe also look at Schmidt's ACE project and see how he did it.

    This is not a comprehensive critique as I only took a cursory look but what I did see indicates that APR needs some more work.