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author | Fedor Indutny <fedor.indutny@gmail.com> | 2014-03-13 20:45:44 +0400 |
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committer | Fedor Indutny <fedor.indutny@gmail.com> | 2014-03-13 20:56:54 +0400 |
commit | 1c7bf245dc2d520c005e01bcb56ecb3275971395 (patch) | |
tree | 34d8160c98bd8dd33757252d87a0f6586fea8213 /deps/v8/include/v8-platform.h | |
parent | 93c3674ff7115fb2a3dbb5b4ffd22f4d5ed9a472 (diff) | |
download | android-node-v8-1c7bf245dc2d520c005e01bcb56ecb3275971395.tar.gz android-node-v8-1c7bf245dc2d520c005e01bcb56ecb3275971395.tar.bz2 android-node-v8-1c7bf245dc2d520c005e01bcb56ecb3275971395.zip |
deps: update v8 to 3.24.40
Diffstat (limited to 'deps/v8/include/v8-platform.h')
-rw-r--r-- | deps/v8/include/v8-platform.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/deps/v8/include/v8-platform.h b/deps/v8/include/v8-platform.h new file mode 100644 index 0000000000..75fddd59a8 --- /dev/null +++ b/deps/v8/include/v8-platform.h @@ -0,0 +1,86 @@ +// Copyright 2013 the V8 project authors. All rights reserved. +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef V8_V8_PLATFORM_H_ +#define V8_V8_PLATFORM_H_ + +#include "v8.h" + +namespace v8 { + +/** + * A Task represents a unit of work. + */ +class Task { + public: + virtual ~Task() {} + + virtual void Run() = 0; +}; + +/** + * V8 Platform abstraction layer. + * + * The embedder has to provide an implementation of this interface before + * initializing the rest of V8. + */ +class Platform { + public: + /** + * This enum is used to indicate whether a task is potentially long running, + * or causes a long wait. The embedder might want to use this hint to decide + * whether to execute the task on a dedicated thread. + */ + enum ExpectedRuntime { + kShortRunningTask, + kLongRunningTask + }; + + /** + * Schedules a task to be invoked on a background thread. |expected_runtime| + * indicates that the task will run a long time. The Platform implementation + * takes ownership of |task|. There is no guarantee about order of execution + * of tasks wrt order of scheduling, nor is there a guarantee about the + * thread the task will be run on. + */ + virtual void CallOnBackgroundThread(Task* task, + ExpectedRuntime expected_runtime) = 0; + + /** + * Schedules a task to be invoked on a foreground thread wrt a specific + * |isolate|. Tasks posted for the same isolate should be execute in order of + * scheduling. The definition of "foreground" is opaque to V8. + */ + virtual void CallOnForegroundThread(Isolate* isolate, Task* task) = 0; + + protected: + virtual ~Platform() {} +}; + +} // namespace v8 + +#endif // V8_V8_PLATFORM_H_ |