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authorjhb <jhb@FreeBSD.org>2013-06-25 18:44:15 +0000
committerjhb <jhb@FreeBSD.org>2013-06-25 18:44:15 +0000
commit0807c44cdd0226cdd2553f723a00de3d13882321 (patch)
tree7b07a13eb6ad28065286a3f60650edd2a6a0dc1c /lib/libc/regex/regex2.h
parent43efcb27b6a0f52dec7b605055f5aae35f6d41de (diff)
downloadFreeBSD-src-0807c44cdd0226cdd2553f723a00de3d13882321.zip
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Several improvements to rmlock(9). Many of these are based on patches
provided by Isilon. - Add an rm_assert() supporting various lock assertions similar to other locking primitives. Because rmlocks track readers the assertions are always fully accurate unlike rw_assert() and sx_assert(). - Flesh out the lock class methods for rmlocks to support sleeping via condvars and rm_sleep() (but only while holding write locks), rmlock details in 'show lock' in DDB, and the lc_owner method used by dtrace. - Add an internal destroyed cookie so that API functions can assert that an rmlock is not destroyed. - Make use of rm_assert() to add various assertions to the API (e.g. to assert locks are held when an unlock routine is called). - Give RM_SLEEPABLE locks their own lock class and always use the rmlock's own lock_object with WITNESS. - Use THREAD_NO_SLEEPING() / THREAD_SLEEPING_OK() to disallow sleeping while holding a read lock on an rmlock. Submitted by: andre Obtained from: EMC/Isilon
Diffstat (limited to 'lib/libc/regex/regex2.h')
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