2013/12/7 Ted Unangst <t...@tedunangst.com>: > On Sat, Dec 07, 2013 at 14:11, Vadim Zhukov wrote: >> This patch fixes problems in KDE4, that relies on sharing (process-shared) >> semaphores via mmap(). This feature is used in the wild, so if we claim >> that we support process-shared semaphores, we have to implement it, too. >> >> This changes the sem_t definition: it becomes a synonim to struct __sem >> instead of being a pointer to it. This way we allow apps to have sem_t in >> shared memory via sem_init() and thus share it between processes (by, >> e.g., mmap()'ing the same file). Of course, this forces a major library >> version bump. > > This requires more thought. If the introduction of pshared support is > breaking things, maybe just that part can be reverted for now.
Well, it's the half-done introduction of pshared support is breaking things. I do not see any fallout now that sharing unnamed semaphores works. But what we'll gain with revert? Except that it's still better than current situation. -- WBR, Vadim Zhukov
