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66 lines
2.1 KiB
66 lines
2.1 KiB
/* |
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* Copyright (C) 2016 The Android Open Source Project |
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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 WIFICOND_EVENT_LOOP_H_ |
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#define WIFICOND_EVENT_LOOP_H_ |
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#include <functional> |
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namespace android { |
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namespace wificond { |
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// Abstract class for dispatching tasks. |
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class EventLoop { |
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public: |
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enum ReadyMode { |
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kModeInput, |
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kModeOutput |
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}; |
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virtual ~EventLoop() {} |
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// Enqueues a callback. |
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// This function can be called on any thread. |
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virtual void PostTask(const std::function<void()>& callback) = 0; |
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// Enqueues a callback to be processed after a specified period of time. |
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// |delay_ms| is delay time in milliseconds. It should not be negative. |
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// This function can be called on any thread. |
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virtual void PostDelayedTask(const std::function<void()>& callback, |
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int64_t delay_ms) = 0; |
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// Monitoring file descriptor for data. |
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// Callback will be executed when specific file descriptor is ready. |
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// File descriptor is provided as a parameter to this callback: |
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// This function can be called on any thread. |
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// This returns true upon success and returns false when it failed. |
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virtual bool WatchFileDescriptor( |
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int fd, |
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ReadyMode mode, |
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const std::function<void(int)>& callback_) = 0; |
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// Stop monitoring file descriptor |fd|. |
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// This function can be called on any thread. |
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// This returns true upon success and returns false when it failed to |
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// remove the file descriptor, or this file descriptor was not registered |
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// for watching. |
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virtual bool StopWatchFileDescriptor(int fd); |
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}; |
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} // namespace wificond |
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} // namespace android |
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#endif // WIFICOND_EVENT_LOOP_H_
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