1 // Copyright 2015 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_TRACE_EVENT_PROCESS_MEMORY_MAPS_H_ 6 #define BASE_TRACE_EVENT_PROCESS_MEMORY_MAPS_H_ 7 8 #include <stdint.h> 9 10 #include <string> 11 #include <vector> 12 13 #include "base/base_export.h" 14 #include "base/macros.h" 15 16 namespace base { 17 namespace trace_event { 18 19 class TracedValue; 20 21 // Data model for process-wide memory stats. 22 class BASE_EXPORT ProcessMemoryMaps { 23 public: 24 struct BASE_EXPORT VMRegion { 25 static const uint32_t kProtectionFlagsRead; 26 static const uint32_t kProtectionFlagsWrite; 27 static const uint32_t kProtectionFlagsExec; 28 static const uint32_t kProtectionFlagsMayshare; 29 30 VMRegion(); 31 VMRegion(const VMRegion& other); 32 33 uint64_t start_address; 34 uint64_t size_in_bytes; 35 uint32_t protection_flags; 36 std::string mapped_file; 37 38 // private_dirty_resident + private_clean_resident + shared_dirty_resident + 39 // shared_clean_resident = resident set size. 40 uint64_t byte_stats_private_dirty_resident; 41 uint64_t byte_stats_private_clean_resident; 42 uint64_t byte_stats_shared_dirty_resident; 43 uint64_t byte_stats_shared_clean_resident; 44 45 uint64_t byte_stats_swapped; 46 47 // For multiprocess accounting. 48 uint64_t byte_stats_proportional_resident; 49 }; 50 51 ProcessMemoryMaps(); 52 ~ProcessMemoryMaps(); 53 54 void AddVMRegion(const VMRegion& region) { vm_regions_.push_back(region); } 55 const std::vector<VMRegion>& vm_regions() const { return vm_regions_; } 56 57 // Called at trace generation time to populate the TracedValue. 58 void AsValueInto(TracedValue* value) const; 59 60 // Clears up all the VMRegion(s) stored. 61 void Clear(); 62 63 private: 64 std::vector<VMRegion> vm_regions_; 65 66 DISALLOW_COPY_AND_ASSIGN(ProcessMemoryMaps); 67 }; 68 69 } // namespace trace_event 70 } // namespace base 71 72 #endif // BASE_TRACE_EVENT_PROCESS_MEMORY_MAPS_H_ 73
