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 #include "directory.h" 18 #include "server.h" 19 20 template<typename IntTy> asNumber(const std::string & s,IntTy * value)21static bool asNumber(const std::string& s, IntTy *value) { 22 IntTy v = 0; 23 for (auto&& c : s) { 24 if (c < '0' || c > '9') { 25 return false; 26 } else { 27 v = v * 10 + (c - '0'); 28 } 29 } 30 31 if (value) *value = v; 32 33 return true; 34 } 35 readProcessTable()36std::vector<procfsinspector::ProcessInfo> procfsinspector::Impl::readProcessTable() { 37 std::vector<procfsinspector::ProcessInfo> processes; 38 39 Directory dir("/proc"); 40 while (auto entry = dir.next()) { 41 pid_t pid; 42 if (asNumber(entry.getChild(), &pid)) { 43 processes.push_back(ProcessInfo{pid, entry.getOwnerUserId()}); 44 } 45 } 46 47 return processes; 48 } 49