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/*
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "rtc_base/memory_usage.h"
#if defined(WEBRTC_LINUX)
#include <unistd.h>
#include <cstdio>
#elif defined(WEBRTC_MAC)
#include <mach/mach.h>
#elif defined(WEBRTC_WIN)
// clang-format off
// clang formating would change include order.
#include <windows.h>
#include <psapi.h> // must come after windows.h
// clang-format on
#elif defined(WEBRTC_FUCHSIA)
#include <lib/zx/process.h>
#include <zircon/status.h>
#endif
#include "rtc_base/logging.h"
namespace rtc {
int64_t GetProcessResidentSizeBytes() {
#if defined(WEBRTC_LINUX)
FILE* file = fopen("/proc/self/statm", "r");
if (file == nullptr) {
RTC_LOG(LS_ERROR) << "Failed to open /proc/self/statm";
return -1;
}
int result = -1;
if (fscanf(file, "%*s%d", &result) != 1) {
fclose(file);
RTC_LOG(LS_ERROR) << "Failed to parse /proc/self/statm";
return -1;
}
fclose(file);
return static_cast<int64_t>(result) * sysconf(_SC_PAGESIZE);
#elif defined(WEBRTC_MAC)
task_basic_info_64 info;
mach_msg_type_number_t info_count = TASK_BASIC_INFO_64_COUNT;
if (task_info(mach_task_self(), TASK_BASIC_INFO_64,
reinterpret_cast<task_info_t>(&info),
&info_count) != KERN_SUCCESS) {
RTC_LOG_ERR(LS_ERROR) << "task_info() failed";
return -1;
}
return info.resident_size;
#elif defined(WEBRTC_WIN)
PROCESS_MEMORY_COUNTERS pmc;
if (GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc)) == 0) {
RTC_LOG_ERR(LS_ERROR) << "GetProcessMemoryInfo() failed";
return -1;
}
return pmc.WorkingSetSize;
#elif defined(WEBRTC_FUCHSIA)
zx_info_task_stats_t task_stats;
zx_status_t status = zx::process::self()->get_info(
ZX_INFO_TASK_STATS, &task_stats, sizeof(task_stats), nullptr, nullptr);
if (status == ZX_OK) {
return task_stats.mem_mapped_bytes;
} else {
RTC_LOG_ERR(LS_ERROR) << "get_info() failed: "
<< zx_status_get_string(status);
return -1;
}
#else
// Not implemented yet.
static_assert(false,
"GetProcessVirtualMemoryUsageBytes() platform support not yet "
"implemented.");
#endif
}
} // namespace rtc
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