| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef SRC_PROFILING_COMMON_PROC_UTILS_H_ |
| #define SRC_PROFILING_COMMON_PROC_UTILS_H_ |
| |
| #include <sys/types.h> |
| #include <set> |
| #include <vector> |
| |
| #include "perfetto/ext/base/optional.h" |
| #include "perfetto/ext/base/scoped_file.h" |
| |
| namespace perfetto { |
| namespace profiling { |
| |
| template <typename Fn> |
| void ForEachPid(Fn callback) { |
| base::ScopedDir proc_dir(opendir("/proc")); |
| if (!proc_dir) { |
| PERFETTO_DFATAL_OR_ELOG("Failed to open /proc"); |
| return; |
| } |
| struct dirent* entry; |
| while ((entry = readdir(*proc_dir))) { |
| char* end; |
| long int pid = strtol(entry->d_name, &end, 10); |
| if (*end != '\0') |
| continue; |
| callback(static_cast<pid_t>(pid)); |
| } |
| } |
| |
| base::Optional<std::vector<std::string>> NormalizeCmdlines( |
| const std::vector<std::string>& cmdlines); |
| |
| void FindAllProfilablePids(std::set<pid_t>* pids); |
| void FindPidsForCmdlines(const std::vector<std::string>& cmdlines, |
| std::set<pid_t>* pids); |
| bool GetCmdlineForPID(pid_t pid, std::string* name); |
| |
| base::Optional<std::string> ReadStatus(pid_t pid); |
| base::Optional<uint32_t> GetRssAnonAndSwap(const std::string&); |
| // Filters the list of pids (in-place), keeping only the |
| // entries satisfying the minimum size criteria for anonymous memory. |
| void RemoveUnderAnonThreshold(uint32_t min_size_kb, std::set<pid_t>* pids); |
| |
| } // namespace profiling |
| } // namespace perfetto |
| |
| #endif // SRC_PROFILING_COMMON_PROC_UTILS_H_ |