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 <log/log.h> 22 23 #include "DumpstateUtil.h" 24 25 using android::os::dumpstate::DumpFileToFd; 26 using android::os::dumpstate::RunCommandToFd; 27 28 namespace android { 29 namespace hardware { 30 namespace dumpstate { 31 namespace V1_0 { 32 namespace implementation { 33 34 // Methods from ::android::hardware::dumpstate::V1_0::IDumpstateDevice follow. 35 Return<void> DumpstateDevice::dumpstateBoard(const hidl_handle& handle) { 36 // NOTE: this is just an example on how to use the DumpstateUtil.h functions to implement 37 // this interface - since HIDL_FETCH_IDumpstateDevice() is not defined, this function will never 38 // be called by dumpstate. 39 40 if (handle == nullptr || handle->numFds < 1) { 41 ALOGE("no FDs\n"); 42 return Void(); 43 } 44 45 int fd = handle->data[0]; 46 if (fd < 0) { 47 ALOGE("invalid FD: %d\n", handle->data[0]); 48 return Void(); 49 } 50 ALOGD("DumpstateDevice::dumpstateBoard() FD: %d\n", fd); 51 ALOGI("Dumpstate HIDL not provided by device\n"); 52 dprintf(fd, "Dumpstate HIDL not provided by device; providing bogus data.\n"); 53 54 // Shows some examples on how to use the libdumpstateutil API. 55 RunCommandToFd(fd, "DATE", {"/vendor/bin/date"}); 56 DumpFileToFd(fd, "HOSTS", "/system/etc/hosts"); 57 58 return Void(); 59 } 60 61 } // namespace implementation 62 } // namespace V1_0 63 } // namespace dumpstate 64 } // namespace hardware 65 } // namespace android 66
