On May 26, 2:08pm, charles.cui1...@gmail.com (Charles Cui) wrote: -- Subject: Re: pthread library related
| Hi Christos, | | I am studying the pthread libraries in netbsd, and have several patches | completed. | I have attached all of them, which is pretty easy, but can fix some | problems in user land. | Note that some of them needs to add more logic. If you can, please give me | some comments on them. I'll send a separate mail. | For the pthread part, I found a deep understanding is necessary to | implement the feature | such as cross process synchronization. Also, I found a patch which is | written by ad (http://www.netbsd.org/~ad/prio_protect.diff) | I found that patch implements some functions that I need, I am right now | focusing on how to port | that patch to my work. Sounds good. I would also look at the FreeBSD implementation. | Also, there are some missing macros like _SC_<MISS_MICRO>, I found the | existing code just return the macro | using _POSIX_<MISS_MICRO>, I am wondering where do you guys enforce the | limitation in the kernel ? | To clarify, let's use _SC_TIMER_MAX as an example, the netbsd code just | returns _POSIX_TIMER_MAX in | sysconf system call, where can I find the logic to enforce this number when | user land allocates more times than this value? This might sched some light. http://nxr.netbsd.org/search?q=&project=src&defs=&refs=TIMER_MAX&path=&hist= | Let me know if there are any concerns. No, I will send a separate mail with more comments about the source. Please note that with source commits you should also supply unit-tests (see http://nxr.netbsd.org/xref/src/tests/lib/libpthread/) for example and also manual pages. I can help you with both. christos
