1 /* 2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include "rtc_base/memory_usage.h" 12 13 #if defined(WEBRTC_LINUX) 14 #include <unistd.h> 15 16 #include <cstdio> 17 #elif defined(WEBRTC_MAC) 18 #include <mach/mach.h> 19 #elif defined(WEBRTC_WIN) 20 // clang-format off 21 // clang formating would change include order. 22 #include <windows.h> 23 #include <psapi.h> // must come after windows.h 24 // clang-format on 25 #endif 26 27 #include "rtc_base/logging.h" 28 29 namespace rtc { 30 GetProcessResidentSizeBytes()31int64_t GetProcessResidentSizeBytes() { 32 #if defined(WEBRTC_LINUX) 33 FILE* file = fopen("/proc/self/statm", "r"); 34 if (file == nullptr) { 35 RTC_LOG(LS_ERROR) << "Failed to open /proc/self/statm"; 36 return -1; 37 } 38 int result = -1; 39 if (fscanf(file, "%*s%d", &result) != 1) { 40 fclose(file); 41 RTC_LOG(LS_ERROR) << "Failed to parse /proc/self/statm"; 42 return -1; 43 } 44 fclose(file); 45 return static_cast<int64_t>(result) * sysconf(_SC_PAGESIZE); 46 #elif defined(WEBRTC_MAC) 47 task_basic_info_64 info; 48 mach_msg_type_number_t info_count = TASK_BASIC_INFO_64_COUNT; 49 if (task_info(mach_task_self(), TASK_BASIC_INFO_64, 50 reinterpret_cast<task_info_t>(&info), 51 &info_count) != KERN_SUCCESS) { 52 RTC_LOG_ERR(LS_ERROR) << "task_info() failed"; 53 return -1; 54 } 55 return info.resident_size; 56 #elif defined(WEBRTC_WIN) 57 PROCESS_MEMORY_COUNTERS pmc; 58 if (GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc)) == 0) { 59 RTC_LOG_ERR(LS_ERROR) << "GetProcessMemoryInfo() failed"; 60 return -1; 61 } 62 return pmc.WorkingSetSize; 63 #elif defined(WEBRTC_FUCHSIA) 64 RTC_LOG_ERR(LS_ERROR) << "GetProcessResidentSizeBytes() not implemented"; 65 return 0; 66 #else 67 // Not implemented yet. 68 static_assert(false, 69 "GetProcessVirtualMemoryUsageBytes() platform support not yet " 70 "implemented."); 71 #endif 72 } 73 74 } // namespace rtc 75