What is the use case for a shared mutex? We use shared mutex for IPC shared process memory. See AudioTrack/ AudioFlinger for sample code. In the case, the sharing works because the mutex is in the shared memory and both process have access to it.
On Mar 3, 12:27 am, waterblood <[email protected]> wrote: > Hi All, > > Usually we use pthread_mutexattr_setpshared to share different > mutex with different process. But I have checked the bionic libc > implementation. It only support PTHREAD_PROCESS_PRIVATE setting. > Does it mean android does not support mutex shared between different > processes? > > pthread.c in android/bionic/libc/bionic > > 772 int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int > pshared) > 773 { > 774 if (!attr) > 775 return EINVAL; > 776 > 777 return (pshared == PTHREAD_PROCESS_PRIVATE) ? 0 : ENOTSUP; > 778 } > > Thanks > Guoyin Chen --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "android-framework" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-framework?hl=en -~----------~----~----~----~------~----~------~--~---
