gecko-dev/gfx/layers/ipc/PCompositor.ipdl

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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* The contents of this file are subject to the Mozilla Public License Version
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* Contributor(s):
* Benoit Girard <bgirard@mozilla.com>
* Ali Juma <ajuma@mozilla.com>
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include protocol PLayers;
using mozilla::LayersBackend;
using mozilla::null_t;
namespace mozilla {
namespace layers {
/**
* The PCompositor protocol is used to manage communication between
* the main thread and the compositor thread context. It's primary
* purpose is to manage the PLayers sub protocol.
*/
// This should really be 'sync', but we're using 'rpc' as a workaround
// for Bug 716631.
rpc protocol PCompositor
{
// A Compositor manages a single Layer Manager (PLayers)
manages PLayers;
parent:
// The child is about to be destroyed, so perform any necessary cleanup.
sync WillStop();
// Clean up in preparation for own destruction.
sync Stop();
// Pause/resume the compositor. These are intended to be used on mobile, when
// the compositor needs to pause/resume in lockstep with the application.
sync Pause();
sync Resume();
sync PLayers(LayersBackend backend);
};
} // layers
} // mozilla