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55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
/*
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* Copyright 2013, Mozilla Foundation and contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef GMP_ASYNC_SHUTDOWN_H_
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#define GMP_ASYNC_SHUTDOWN_H_
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#define GMP_API_ASYNC_SHUTDOWN "async-shutdown"
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// API exposed by the plugin library to manage asynchronous shutdown.
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// Some plugins require special cleanup which may need to make calls
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// to host services and wait for async responses.
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//
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// To enable a plugins to block shutdown until its async shutdown is
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// complete, implement the GMPAsyncShutdown interface and return it when
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// your plugin's GMPGetAPI function is called with "async-shutdown".
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// When your GMPAsyncShutdown's BeginShutdown() implementation is called
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// by the GMP host, you should initate your async shutdown process.
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// Once you have completed shutdown, call the ShutdownComplete() function
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// of the GMPAsyncShutdownHost that is passed as the host argument to the
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// GMPGetAPI() call.
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//
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// Note: Your GMP's GMPShutdown function will still be called after your
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// call to ShutdownComplete().
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//
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// API name macro: GMP_API_ASYNC_SHUTDOWN
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// Host API: GMPAsyncShutdownHost
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class GMPAsyncShutdown {
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public:
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virtual ~GMPAsyncShutdown() {}
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virtual void BeginShutdown() = 0;
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};
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class GMPAsyncShutdownHost {
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public:
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virtual ~GMPAsyncShutdownHost() {}
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virtual void ShutdownComplete() = 0;
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};
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#endif // GMP_ASYNC_SHUTDOWN_H_
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