OpenBinder is a system for inter-process communication.OpenBinder website It was developed at Be Inc. and then Palm, Inc.Eugenia Loli-Queru, Introduction to OpenBinder and Interview with Dianne Hackborn, OSNews, 14 February 2006. and was the basis for the Binder frameworkAleksandar Gargenta, Deep Dive into Android IPC/Binder Framework, , 17 February 2013 now used in the Android operating system developed by Google.Ben Leslie, Android: strace runtime , Benno’s website, 18 November 2007.
OpenBinder allows processes to present interfaces which may be called by other threads. Each process maintains a thread pool which may be used to service such requests. OpenBinder takes care of reference counting, recursion back into the original thread, and the inter-process communication itself. On the Linux version of OpenBinder, the communication is achieved using ioctls on a given file descriptor, communicating with a kernel driver.
The kernel-side component of the Linux version of OpenBinder was merged into the Linux kernel mainline in kernel version 3.19, which was released on February 8, 2015.
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