about summary refs log tree commit diff
path: root/src/mman/shm_open.c
Commit message (Collapse)AuthorAgeFilesLines
* fix shm_open wrongly being cancellableRich Felker2013-07-201-1/+6
|
* overhaul sem_openRich Felker2012-09-301-3/+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_unlinkRich Felker2012-09-301-9/+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 memoryRich Felker2011-03-031-0/+21