1 /* 2 * Copyright (C) 2022 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 #pragma once 18 19 #include <sys/types.h> 20 21 #include <cstdint> 22 #include <functional> 23 #include <ostream> 24 #include <string> 25 #include <vector> 26 27 #include <meminfo/meminfo.h> 28 #include <meminfo/procmeminfo.h> 29 30 namespace android { 31 namespace smapinfo { 32 33 class ProcessRecord final { 34 public: 35 ProcessRecord(pid_t pid, bool get_wss, uint64_t pgflags, uint64_t pgflags_mask, 36 bool get_cmdline, bool get_oomadj, std::ostream& err); 37 38 bool valid() const; 39 void CalculateSwap(const std::vector<uint16_t>& swap_offset_array, 40 float zram_compression_ratio); 41 42 // Getters pid()43 pid_t pid() const { return pid_; } cmdline()44 const std::string& cmdline() const { return cmdline_; } oomadj()45 int32_t oomadj() const { return oomadj_; } proportional_swap()46 uint64_t proportional_swap() const { return proportional_swap_; } unique_swap()47 uint64_t unique_swap() const { return unique_swap_; } zswap()48 uint64_t zswap() const { return zswap_; } 49 50 // Wrappers to ProcMemInfo SwapOffsets()51 const std::vector<uint64_t>& SwapOffsets() const { return swap_offsets_; } 52 // show_wss may be used to return differentiated output in the future. Usage(bool show_wss)53 const ::android::meminfo::MemUsage& Usage([[maybe_unused]] bool show_wss) const { 54 return usage_or_wss_; 55 } Smaps()56 const std::vector<::android::meminfo::Vma>& Smaps() { return procmem_.Smaps(); } ForEachExistingVma(const::android::meminfo::VmaCallback & callback)57 bool ForEachExistingVma(const ::android::meminfo::VmaCallback& callback) { 58 return procmem_.ForEachExistingVma(callback); 59 } 60 61 private: 62 ::android::meminfo::ProcMemInfo procmem_; 63 pid_t pid_; 64 std::string cmdline_; 65 int32_t oomadj_; 66 uint64_t proportional_swap_; 67 uint64_t unique_swap_; 68 uint64_t zswap_; 69 ::android::meminfo::MemUsage usage_or_wss_; 70 std::vector<uint64_t> swap_offsets_; 71 }; 72 73 } // namespace smapinfo 74 } // namespace android 75