If RPC does not have a timeout mechanism, if it tries to call the RPC method of a closed server, how to “terminate” the RPC call? You can use channels to implement timeout mode:
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Tag: Mechanism
SurfaceFlinger GraphicBuffer Memory Sharing Buffer Mechanism
http://blog.csdn.net/andyhuabing/article/details/7489776
For fd writing binder special mark BINDER_TYPE_FD: Tell the Binder driver that this is an fd descriptor
status_t Parcel::writeFi