1 /* 2 * Copyright (C) 2016 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 #define LOG_TAG "dumpstate" 18 19 #include "DumpstateDevice.h" 20 21 #include <hidl/HidlBinderSupport.h> 22 #include <log/log.h> 23 24 #include "DumpstateUtil.h" 25 26 using android::os::dumpstate::DumpFileToFd; 27 using android::os::dumpstate::RunCommandToFd; 28 29 namespace android { 30 namespace hardware { 31 namespace dumpstate { 32 namespace V1_0 { 33 namespace implementation { 34 35 // Methods from ::android::hardware::dumpstate::V1_0::IDumpstateDevice follow. 36 Return<void> DumpstateDevice::dumpstateBoard(const hidl_handle& handle) { 37 // NOTE: this is just an example on how to use the DumpstateUtil.h functions to implement 38 // this interface. 39 40 // Exit when dump is completed since this is a lazy HAL. 41 addPostCommandTask([]() { 42 exit(0); 43 }); 44 45 if (handle == nullptr || handle->numFds < 1) { 46 ALOGE("no FDs\n"); 47 return Void(); 48 } 49 50 int fd = handle->data[0]; 51 if (fd < 0) { 52 ALOGE("invalid FD: %d\n", handle->data[0]); 53 return Void(); 54 } 55 ALOGD("DumpstateDevice::dumpstateBoard() FD: %d\n", fd); 56 ALOGI("Dumpstate HIDL not provided by device\n"); 57 dprintf(fd, "Dumpstate HIDL not provided by device; providing bogus data.\n"); 58 59 // Shows some examples on how to use the libdumpstateutil API. 60 RunCommandToFd(fd, "DATE", {"/vendor/bin/date"}); 61 DumpFileToFd(fd, "HOSTS", "/system/etc/hosts"); 62 63 return Void(); 64 } 65 66 } // namespace implementation 67 } // namespace V1_0 68 } // namespace dumpstate 69 } // namespace hardware 70 } // namespace android 71
