On Fri, 2010-01-15 at 08:58 -0800, Darren Hart wrote: > The futex man-pages (2,7) from version 3.15-1 and at least a few earlier > versions are considerably out of date with respect to the current > implementation. They don't document newer op codes, such as: > > FUTEX_WAIT_BITSET > FUTEX_WAKE_BITSET > FUTEX_WAKE_OP > FUTEX_LOCK_PI > FUTEX_UNLOCK_PI > FUTEX_WAIT_REQUEUE_PI > FUTEX_CMP_REQUEUE_PI > > These new wait op codes now use absolute timeouts, while the original > FUTEX_WAIT uses a relative timeout. Lastly, and most importantly, glibc > has removed the futex() wrapper to syscall(SYS_futex, ...). With that in > mind, would people prefer that we simply remove the futex man-pages > (2,7)? A readable text about the interaction between the futex value and the various futex ops and how to build proper locking primitives with them would be helpful I think, however doing that in the form of a locking library (as has been suggested at KS) seems plenty fine to me. Readable code is much better than rambling English at conveying this stuff. -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
