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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "ProcStats.h"
#if defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_ANDROID)
#include <sys/resource.h>
int sk_tools::getMaxResidentSetSizeMB() {
struct rusage ru;
getrusage(RUSAGE_SELF, &ru);
#if defined(SK_BUILD_FOR_MAC)
return static_cast<int>(ru.ru_maxrss / 1024 / 1024); // Darwin reports bytes.
#else
return static_cast<int>(ru.ru_maxrss / 1024); // Linux reports kilobytes.
#endif
}
#elif defined(SK_BUILD_FOR_WIN32)
#include <windows.h>
#include <psapi.h>
int sk_tools::getMaxResidentSetSizeMB() {
PROCESS_MEMORY_COUNTERS info;
GetProcessMemoryInfo(GetCurrentProcess(), &info, sizeof(info));
return static_cast<int>(info.PeakWorkingSetSize / 1024 / 1024); // Windows reports bytes.
}
#else
int sk_tools::getMaxResidentSetSizeMB() { return -1; }
#endif
#if defined(SK_BUILD_FOR_MAC)
#include <mach/mach.h>
int sk_tools::getCurrResidentSetSizeMB() {
mach_task_basic_info info;
mach_msg_type_number_t count = MACH_TASK_BASIC_INFO_COUNT;
if (KERN_SUCCESS !=
task_info(mach_task_self(), MACH_TASK_BASIC_INFO, (task_info_t)&info, &count)) {
return -1;
}
return info.resident_size / 1024 / 1024; // Darwin reports bytes.
}
#elif defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) // N.B. /proc is Linux-only.
#include <unistd.h>
#include <stdio.h>
int sk_tools::getCurrResidentSetSizeMB() {
const long pageSize = sysconf(_SC_PAGESIZE);
long rssPages = 0;
if (FILE* statm = fopen("/proc/self/statm", "r")) {
// statm contains: program-size rss shared text lib data dirty, all in page counts.
int rc = fscanf(statm, "%*d %ld", &rssPages);
fclose(statm);
if (rc != 1) {
return -1;
}
}
return rssPages * pageSize / 1024 / 1024;
}
#elif defined(SK_BUILD_FOR_WIN32)
int sk_tools::getCurrResidentSetSizeMB() {
PROCESS_MEMORY_COUNTERS info;
GetProcessMemoryInfo(GetCurrentProcess(), &info, sizeof(info));
return static_cast<int>(info.WorkingSetSize / 1024 / 1024); // Windows reports bytes.
}
#else
int sk_tools::getCurrResidentSetSizeMB() { return -1; }
#endif
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