1 #ifndef DALI_INTERNAL_TRIGGER_EVENT_H
2 #define DALI_INTERNAL_TRIGGER_EVENT_H
5 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
22 #include <dali/public-api/signals/callback.h>
25 #include <dali/integration-api/adaptor-framework/trigger-event-interface.h>
26 #include <dali/internal/system/common/file-descriptor-monitor.h>
27 #include <dali/public-api/dali-adaptor-common.h>
36 * The TriggerEvent class is used to send events between threads. For example, this can be used
37 * to wake up one thread from another thread.
39 * Typically, these should be created in the application thread.
41 * The observer will be informed whenever the event is triggered.
43 * The implementation of TriggerEvent uses an event file descriptor.
45 class TriggerEvent : public TriggerEventInterface
50 * Creates an event file descriptor and starts a GSource which reads from the file
51 * descriptor when there is data.
53 * @param[in] callback The callback to call
54 * @param[in] options Trigger event options.
55 * @note The ownership of callback is taken by this class.
57 TriggerEvent(CallbackBase* callback, TriggerEventInterface::Options options);
68 * This can be called from one thread in order to wake up another thread.
74 * @brief Called when our event file descriptor has been written to.
75 * @param[in] eventBitMask bit mask of events that occured on the file descriptor
76 * @param[in] fileDescriptor The file descriptor
78 void Triggered(FileDescriptorMonitor::EventType eventBitMask, int fileDescriptor);
84 FileDescriptorMonitor* mFileDescriptorMonitor;
85 CallbackBase* mCallback;
87 TriggerEventInterface::Options mOptions;
90 } // namespace Adaptor
92 } // namespace Internal
96 #endif // DALI_INTERNAL_TRIGGER_EVENT_H