1 /* 2 * Copyright (C) 2024 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 <filesystem> 18 #include <iostream> 19 #include <string> 20 21 #include <android-base/file.h> 22 #include <android-base/logging.h> 23 #include <android-base/parseint.h> 24 #include <android-base/properties.h> 25 #include <android-base/strings.h> 26 #include <android_uprobestats_flags.h> 27 #include <config.pb.h> 28 #include <json/json.h> 29 30 namespace android { 31 namespace uprobestats { 32 namespace process { 33 getPid(const std::string & processName)34int getPid(const std::string &processName) { 35 for (const auto &entry : std::filesystem::directory_iterator("/proc")) { 36 std::string cmdline; 37 android::base::ReadFileToString(entry.path() / "cmdline", &cmdline); 38 if (android::base::ReadFileToString(entry.path() / "cmdline", &cmdline) && 39 (cmdline == processName || 40 (cmdline.rfind(processName + '\0', 0) == 0))) { 41 std::string pidStr = 42 entry.path().string().substr(entry.path().string().rfind("/") + 1); 43 int pid; 44 if (!android::base::ParseInt(pidStr, &pid)) { 45 return -1; 46 } 47 return pid; 48 } 49 } 50 return -1; 51 } 52 53 } // namespace process 54 } // namespace uprobestats 55 } // namespace android