1 /*
2 * Copyright (C) 2019 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 #include <android-base/logging.h>
18 #include <android-base/properties.h>
19 #include <android/lpdump/ILpdump.h>
20 #include <binder/IServiceManager.h>
21 #include <iostream>
22 #include <string>
23 #include <vector>
24
25 using namespace android;
26 using namespace std::chrono_literals;
27 using ::android::lpdump::ILpdump;
28
Run(ILpdump * service,const std::vector<std::string> & args)29 int Run(ILpdump* service, const std::vector<std::string>& args) {
30 std::string output;
31 binder::Status status = service->run(args, &output);
32 if (status.isOk()) {
33 std::cout << output;
34 return 0;
35 }
36 std::cerr << status.exceptionMessage();
37 if (status.serviceSpecificErrorCode() != 0) {
38 return status.serviceSpecificErrorCode();
39 }
40 return -status.exceptionCode();
41 }
42
GetArgVector(int argc,char * argv[])43 std::vector<std::string> GetArgVector(int argc, char* argv[]) {
44 std::vector<std::string> args;
45 args.reserve(argc);
46 for (int i = 0; i < argc; ++i) {
47 args.push_back(argv[i]);
48 }
49 return args;
50 }
51
52 class LpdumpService {
53 public:
LpdumpService()54 LpdumpService() {
55 base::SetProperty("sys.lpdumpd", "start");
56 status_t status = getService(String16("lpdump_service"), &service_);
57 int wait_counter = 0;
58 while (status != OK && wait_counter++ < 3) {
59 sleep(1);
60 status = getService(String16("lpdump"), &service_);
61 }
62 if (status != OK || service_ == nullptr) {
63 std::cerr << "Cannot get lpdump service: " << strerror(-status) << std::endl;
64 LOG(ERROR) << "Cannot get lpdump service: " << strerror(-status);
65 }
66 }
~LpdumpService()67 ~LpdumpService() {
68 base::SetProperty("sys.lpdumpd", "stop");
69 }
get()70 sp<ILpdump> get() { return service_; }
71 private:
72 sp<ILpdump> service_;
73 };
74
main(int argc,char * argv[])75 int main(int argc, char* argv[]) {
76 LpdumpService wrapper;
77 sp<ILpdump> service = wrapper.get();
78 if (service == nullptr) {
79 return 1;
80 }
81 int ret = Run(service.get(), GetArgVector(argc, argv));
82 base::SetProperty("sys.lpdumpd", "stop");
83 return ret;
84 }
85