Req #73340 [Opn]: SHMOP: Access to SHM_LOCK, SHM_UNLOCK

Edit report at https://bugs.php.net/bug.php?id=73340&edit=1 ID: 73340 Updated by: cmb@php.net Reported by: narf at devilix dot net Summary: SHMOP: Access to SHM_LOCK, SHM_UNLOCK Status: Open Type: Feature/Change Request -Package: POSIX related +Package: *Extensibility Functions PHP Version: Irrelevant Block user comment: N Private report: N New Comment: SHM_LOCK is not part of POSIX[1], so might not be available everywhere, and I don't think there's anything like that on Windows. [1] <https://pubs.opengroup.org/onlinepubs/9699919799/functions/shmctl.html> Previous Comments: ------------------------------------------------------------------------ [2016-10-18 18:11:48] narf at devilix dot net Description: ------------ I was looking for a way to store encryption keys in (guaranteed to be non-swap) memory, and apparently setting the SHM_LOCK flag on a shared memory segment seems to be the only way to do that. Obviously, PHP doesn't expose shmctl() directly and that's probably for a good reason, but can we have something like shmop_lock(), or an optional parameter to shmop_open()? (on a related note, shmop_stat() would be nice too) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=73340&edit=1