1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef CHRE_PLATFORM_HOST_LINK_H_ 18 #define CHRE_PLATFORM_HOST_LINK_H_ 19 20 #include "chre/target_platform/host_link_base.h" 21 #include "chre/util/non_copyable.h" 22 23 namespace chre { 24 25 struct HostMessage; 26 typedef HostMessage MessageToHost; 27 28 /** 29 * Abstracts the platform-specific communications link between CHRE and the host 30 * processor 31 */ 32 class HostLink : public HostLinkBase, 33 public NonCopyable { 34 public: 35 /** 36 * Enqueues a message for sending to the host. Once sending the message is 37 * complete (success or failure), the platform implementation must invoke 38 * HostCommsManager::onMessageToHostComplete (can be called from any thread). 39 * 40 * @param message A non-null pointer to the message 41 * 42 * @return true if the message was successfully queued 43 */ 44 bool sendMessage(const MessageToHost *message); 45 }; 46 47 } // namespace chre 48 49 #endif // CHRE_PLATFORM_HOST_LINK_H_ 50