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 29 VMRegion(); 30 31 uint64_t start_address; 32 uint64_t size_in_bytes; 33 uint32_t protection_flags; 34 std::string mapped_file; 35 36 // private_dirty_resident + private_clean_resident + shared_dirty_resident + 37 // shared_clean_resident = resident set size. 38 uint64_t byte_stats_private_dirty_resident; 39 uint64_t byte_stats_private_clean_resident; 40 uint64_t byte_stats_shared_dirty_resident; 41 uint64_t byte_stats_shared_clean_resident; 42 43 uint64_t byte_stats_swapped; 44 45 // For multiprocess accounting. 46 uint64_t byte_stats_proportional_resident; 47 }; 48 49 ProcessMemoryMaps(); 50 ~ProcessMemoryMaps(); 51 52 void AddVMRegion(const VMRegion& region) { vm_regions_.push_back(region); } 53 const std::vector<VMRegion>& vm_regions() const { return vm_regions_; } 54 55 // Called at trace generation time to populate the TracedValue. 56 void AsValueInto(TracedValue* value) const; 57 58 // Clears up all the VMRegion(s) stored. 59 void Clear(); 60 61 private: 62 std::vector<VMRegion> vm_regions_; 63 64 DISALLOW_COPY_AND_ASSIGN(ProcessMemoryMaps); 65 }; 66 67 } // namespace trace_event 68 } // namespace base 69 70 #endif // BASE_TRACE_EVENT_PROCESS_MEMORY_MAPS_H_ 71
