Commit message (Collapse) | Author | Age | Files | Lines | |
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* | fix shm_open wrongly being cancellable | Rich Felker | 2013-07-20 | 1 | -1/+6 |
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* | overhaul sem_open | Rich Felker | 2012-09-30 | 1 | -3/+3 |
| | | | | | | | | | | | this function was overly complicated and not even obviously correct. avoid using openat/linkat just like in shm_open, and instead expand pathname using code shared with shm_open. remove bogus (and dangerous, with priorities) use of spinlocks. this commit also heavily streamlines the code and ensures there are no failure cases that can happen after a new semaphore has been created in the filesystem, since that case is unreportable. | ||||
* | clean up, bugfixes, and general improvement for shm_open/shm_unlink | Rich Felker | 2012-09-30 | 1 | -9/+28 |
| | | | | | | | 1. don't make non-cloexec file descriptors 2. cancellation safety (cleanup handlers were missing, now unneeded) 3. share name validation/mapping code between open/unlink functions 4. avoid wasteful/slow syscalls | ||||
* | implement POSIX shared memory | Rich Felker | 2011-03-03 | 1 | -0/+21 |