Enrico Granata | e23f034 | 2017-10-23 17:17:52 -0700 | [diff] [blame] | 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> |
| 21 | static 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 | |
| 36 | std::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 | } |