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* To support stack unwinding for cancellation points, add -fexceptions flagdavidxu2010-09-251-12/+9
| | | | | | | for them, two functions _pthread_cancel_enter and _pthread_cancel_leave are added to let thread enter and leave a cancellation point, it also makes it possible that other functions can be cancellation points in libraries without having to be rewritten in libthr.
* Make following functions be cancellation points:davidxu2009-11-181-4/+55
| | | | | | | mq_receive mq_send mq_timereceive mq_timedsend
* 1. Always call user callback function in newly created thread, it seemsdavidxu2006-03-071-2/+0
| | | | | | POSIX implies that the user callback function must be executed in clean environment. 2. Use newly introduced pthread stubs in libc.
* Use a thread pool to process notification if sigev_notify_attributesdavidxu2006-03-041-3/+3
| | | | | | | | is default and caller does not require dedicated thread. timer needs a dedicated thread to maintain overrun count correctly in notification context. mqueue and aio can use thread pool to do notification concurrently, the thread pool has lifecycle control, some threads will exit if they have idled for a while.
* Style fix.davidxu2006-03-011-1/+2
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* Add missing parameter mq_attr * for mq_open.davidxu2006-03-011-3/+5
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* Bring in my initial version of POSIX realtime extension library.davidxu2006-03-011-0/+231
Current the library implements mqueue, timer and aio with SIGEV_THREAD notification supported. Earlier version reviewed by: deischen
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