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foundationdb/flow/Platform.cpp

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/*
* Platform.cpp
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef _WIN32
// This has to come as the first include on Win32 for rand_s() to be found
#define _CRT_RAND_S
#include <stdlib.h>
#include <math.h> // For _set_FMA3_enable workaround in platformInit
#endif
#include "flow/Platform.h"
#include "flow/Arena.h"
#include "flow/Trace.h"
#include "flow/Error.h"
#include "flow/Knobs.h"
#include <iostream>
#include <fstream>
#include <sstream>
#include <cstring>
#include <algorithm>
#include <sys/types.h>
#include <time.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "flow/UnitTest.h"
#include "flow/FaultInjection.h"
#ifdef _WIN32
#define NOMINMAX
#include <windows.h>
#include <winioctl.h>
#include <io.h>
#include <psapi.h>
#include <stdio.h>
#include <conio.h>
#include <direct.h>
#include <pdh.h>
#include <pdhmsg.h>
#pragma comment(lib, "pdh.lib")
// for SHGetFolderPath
#include <ShlObj.h>
#pragma comment(lib, "Shell32.lib")
#define CANONICAL_PATH_SEPARATOR '\\'
#define PATH_MAX MAX_PATH
#endif
#ifdef __unixish__
#define CANONICAL_PATH_SEPARATOR '/'
#include <dirent.h>
#include <sys/time.h>
#include <sys/mman.h>
#include <unistd.h>
#include <ftw.h>
#include <pwd.h>
#include <sched.h>
/* Needed for disk capacity */
#include <sys/statvfs.h>
/* getifaddrs */
#include <sys/socket.h>
#include <ifaddrs.h>
#include <arpa/inet.h>
#include "flow/stacktrace.h"
#ifdef __linux__
/* Needed for memory allocation */
#include <linux/mman.h>
/* Needed for processor affinity */
#include <sched.h>
/* Needed for getProcessorTime* and setpriority */
#include <sys/syscall.h>
/* Needed for setpriority */
#include <sys/resource.h>
/* Needed for crash handler */
#include <signal.h>
/* Needed for gnu_dev_{major,minor} */
#include <sys/sysmacros.h>
#endif
#ifdef __APPLE__
#include <sys/uio.h>
#include <sys/syslimits.h>
#include <mach/mach.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/sysctl.h>
#include <netinet/in.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/route.h>
#include <CoreFoundation/CoreFoundation.h>
#include <IOKit/IOKitLib.h>
#include <IOKit/storage/IOBlockStorageDriver.h>
#include <IOKit/storage/IOMedia.h>
#include <IOKit/IOBSD.h>
#endif
#endif
std::string removeWhitespace(const std::string &t)
{
static const std::string ws(" \t\r");
std::string str = t;
size_t found = str.find_last_not_of(ws);
if (found != std::string::npos)
str.erase(found + 1);
else
str.clear(); // str is all whitespace
found = str.find_first_not_of(ws);
if (found != std::string::npos)
str.erase(0, found);
else
str.clear(); // str is all whitespace
return str;
}
#ifdef _WIN32
#define ALLOC_FAIL NULL
#elif defined(__unixish__)
#define ALLOC_FAIL MAP_FAILED
#else
#error What platform is this?
#endif
using std::cout;
using std::endl;
#if defined(_WIN32)
__int64 FiletimeAsInt64 (FILETIME &t){
return *(__int64*)&t;
}
#endif
#ifdef _WIN32
bool handlePdhStatus(const PDH_STATUS& status, std::string message) {
if (status != ERROR_SUCCESS) {
TraceEvent(SevWarnAlways, message.c_str()).GetLastError().detail("Status", status);
return false;
}
return true;
}
bool setPdhString(int id, std::string &out) {
char buf[512];
DWORD sz = 512;
if (!handlePdhStatus(PdhLookupPerfNameByIndex(NULL, id, buf, &sz), "PdhLookupPerfByNameIndex"))
return false;
out = buf;
return true;
}
#endif
#ifdef __unixish__
static double getProcessorTimeGeneric(int who) {
struct rusage r_usage;
if (getrusage(who, &r_usage)) {
TraceEvent(SevError, "GetCPUTime").detail("Who", who).GetLastError();
throw platform_error();
}
return (r_usage.ru_utime.tv_sec + (r_usage.ru_utime.tv_usec / double(1e6)) +
r_usage.ru_stime.tv_sec + (r_usage.ru_stime.tv_usec / double(1e6)));
}
#endif
double getProcessorTimeThread() {
INJECT_FAULT( platform_error, "getProcessorTimeThread" );
#if defined(_WIN32)
FILETIME ftCreate, ftExit, ftKernel, ftUser;
if (!GetThreadTimes(GetCurrentThread(), &ftCreate, &ftExit, &ftKernel, &ftUser)) {
TraceEvent(SevError, "GetThreadCPUTime").GetLastError();
throw platform_error();
}
return FiletimeAsInt64(ftKernel) / double(1e7) + FiletimeAsInt64(ftUser) / double(1e7);
#elif defined(__linux__)
return getProcessorTimeGeneric(RUSAGE_THREAD);
#elif defined(__APPLE__)
/* No RUSAGE_THREAD so we use the lower level interface */
struct thread_basic_info info;
mach_msg_type_number_t info_count = THREAD_BASIC_INFO_COUNT;
if (KERN_SUCCESS != thread_info(mach_thread_self(), THREAD_BASIC_INFO, (thread_info_t)&info, &info_count)) {
TraceEvent(SevError, "GetThreadCPUTime").GetLastError();
throw platform_error();
}
return (info.user_time.seconds + (info.user_time.microseconds / double(1e6)) +
info.system_time.seconds + (info.system_time.microseconds / double(1e6)));
#else
#warning getProcessorTimeThread unimplemented on this platform
return 0.0;
#endif
}
double getProcessorTimeProcess() {
INJECT_FAULT( platform_error, "getProcessorTimeProcess" );
#if defined(_WIN32)
FILETIME ftCreate, ftExit, ftKernel, ftUser;
if (!GetProcessTimes(GetCurrentProcess(), &ftCreate, &ftExit, &ftKernel, &ftUser)) {
TraceEvent(SevError, "GetProcessCPUTime").GetLastError();
throw platform_error();
}
return FiletimeAsInt64(ftKernel) / double(1e7) + FiletimeAsInt64(ftUser) / double(1e7);
#elif defined(__unixish__)
return getProcessorTimeGeneric(RUSAGE_SELF);
#else
#warning getProcessorTimeProcess unimplemented on this platform
return 0.0;
#endif
}
uint64_t getResidentMemoryUsage() {
#if defined(__linux__)
uint64_t rssize = 0;
std::ifstream stat_stream("/proc/self/statm", std::ifstream::in);
std::string ignore;
if(!stat_stream.good()) {
TraceEvent(SevError, "GetResidentMemoryUsage").GetLastError();
throw platform_error();
}
stat_stream >> ignore;
stat_stream >> rssize;
rssize *= sysconf(_SC_PAGESIZE);
return rssize;
#elif defined(_WIN32)
PROCESS_MEMORY_COUNTERS_EX pmc;
if(!GetProcessMemoryInfo(GetCurrentProcess(), (PPROCESS_MEMORY_COUNTERS)&pmc, sizeof(pmc))) {
TraceEvent(SevError, "GetResidentMemoryUsage").GetLastError();
throw platform_error();
}
return pmc.WorkingSetSize;
#elif defined(__APPLE__)
struct task_basic_info info;
mach_msg_type_number_t info_count = TASK_BASIC_INFO_COUNT;
if (KERN_SUCCESS != task_info(mach_task_self(), TASK_BASIC_INFO, (task_info_t)&info, &info_count)) {
TraceEvent(SevError, "GetResidentMemoryUsage").GetLastError();
throw platform_error();
}
return info.resident_size;
#else
#warning getMemoryUsage unimplemented on this platform
return 0;
#endif
}
uint64_t getMemoryUsage() {
#if defined(__linux__)
uint64_t vmsize = 0;
std::ifstream stat_stream("/proc/self/statm", std::ifstream::in);
if(!stat_stream.good()) {
TraceEvent(SevError, "GetMemoryUsage").GetLastError();
throw platform_error();
}
stat_stream >> vmsize;
vmsize *= sysconf(_SC_PAGESIZE);
return vmsize;
#elif defined(_WIN32)
PROCESS_MEMORY_COUNTERS_EX pmc;
if(!GetProcessMemoryInfo(GetCurrentProcess(), (PPROCESS_MEMORY_COUNTERS)&pmc, sizeof(pmc))) {
TraceEvent(SevError, "GetMemoryUsage").GetLastError();
throw platform_error();
}
return pmc.PagefileUsage;
#elif defined(__APPLE__)
struct task_basic_info info;
mach_msg_type_number_t info_count = TASK_BASIC_INFO_COUNT;
if (KERN_SUCCESS != task_info(mach_task_self(), TASK_BASIC_INFO, (task_info_t)&info, &info_count)) {
TraceEvent(SevError, "GetMemoryUsage").GetLastError();
throw platform_error();
}
return info.virtual_size;
#else
#warning getMemoryUsage unimplemented on this platform
return 0;
#endif
}
#if defined(__linux__)
void getMemoryInfo(std::map<StringRef, int64_t>& request, std::stringstream& memInfoStream) {
size_t count = request.size();
if (count == 0)
return;
while (count > 0 && !memInfoStream.eof()) {
std::string key;
memInfoStream >> key;
auto item = request.find(StringRef(key));
if (item != request.end()){
int64_t value;
memInfoStream >> value;
item->second = value;
count--;
}
memInfoStream.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}
}
int64_t getLowWatermark(std::stringstream& zoneInfoStream) {
int64_t lowWatermark = 0;
while(!zoneInfoStream.eof()) {
std::string key;
zoneInfoStream >> key;
if(key == "low") {
int64_t value;
zoneInfoStream >> value;
lowWatermark += value;
}
zoneInfoStream.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}
return lowWatermark;
}
#endif
void getMachineRAMInfo(MachineRAMInfo& memInfo) {
#if defined(__linux__)
std::ifstream zoneInfoFileStream("/proc/zoneinfo", std::ifstream::in);
int64_t lowWatermark = 0;
if(!zoneInfoFileStream.good()) {
TraceEvent(SevWarnAlways, "GetMachineZoneInfo").GetLastError();
}
else {
std::stringstream zoneInfoStream;
zoneInfoStream << zoneInfoFileStream.rdbuf();
lowWatermark = getLowWatermark(zoneInfoStream) * 4; // Convert from 4K pages to KB
}
std::ifstream fileStream("/proc/meminfo", std::ifstream::in);
if (!fileStream.good()) {
TraceEvent(SevError, "GetMachineMemInfo").GetLastError();
throw platform_error();
}
std::map<StringRef, int64_t> request = {
{ LiteralStringRef("MemTotal:"), 0 },
{ LiteralStringRef("MemFree:"), 0 },
{ LiteralStringRef("MemAvailable:"), -1 },
{ LiteralStringRef("Active(file):"), 0 },
{ LiteralStringRef("Inactive(file):"), 0 },
{ LiteralStringRef("SwapTotal:"), 0 },
{ LiteralStringRef("SwapFree:"), 0 },
{ LiteralStringRef("SReclaimable:"), 0 },
};
std::stringstream memInfoStream;
memInfoStream << fileStream.rdbuf();
getMemoryInfo( request, memInfoStream );
int64_t memFree = request[LiteralStringRef("MemFree:")];
int64_t pageCache = request[LiteralStringRef("Active(file):")] + request[LiteralStringRef("Inactive(file):")];
int64_t slabReclaimable = request[LiteralStringRef("SReclaimable:")];
int64_t usedSwap = request[LiteralStringRef("SwapTotal:")] - request[LiteralStringRef("SwapFree:")];
memInfo.total = 1024 * request[LiteralStringRef("MemTotal:")];
if(request[LiteralStringRef("MemAvailable:")] != -1) {
memInfo.available = 1024 * (request[LiteralStringRef("MemAvailable:")] - usedSwap);
}
else {
memInfo.available = 1024 * (std::max<int64_t>(0, (memFree-lowWatermark) + std::max(pageCache-lowWatermark, pageCache/2) + std::max(slabReclaimable-lowWatermark, slabReclaimable/2)) - usedSwap);
}
memInfo.committed = memInfo.total - memInfo.available;
#elif defined(_WIN32)
MEMORYSTATUSEX mem_status;
mem_status.dwLength = sizeof(mem_status);
if (!GlobalMemoryStatusEx(&mem_status)) {
TraceEvent(SevError, "WindowsGetMemStatus").GetLastError();
throw platform_error();
}
PERFORMACE_INFORMATION perf;
if (!GetPerformanceInfo(&perf, sizeof(perf))) {
TraceEvent(SevError, "WindowsGetMemPerformanceInfo").GetLastError();
throw platform_error();
}
memInfo.total = mem_status.ullTotalPhys;
memInfo.committed = perf.PageSize*perf.CommitTotal;
memInfo.available = memInfo.total - memInfo.committed;
#elif defined(__APPLE__)
vm_statistics_data_t vm_stat;
vm_size_t pagesize;
mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
if (KERN_SUCCESS != host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)&vm_stat, &host_size)) {
TraceEvent(SevError, "GetMachineMemInfo").GetLastError();
throw platform_error();
}
host_page_size(mach_host_self(), &pagesize);
memInfo.total = pagesize * (vm_stat.free_count + vm_stat.active_count + vm_stat.inactive_count + vm_stat.wire_count);
memInfo.available = pagesize * vm_stat.free_count;
memInfo.committed = memInfo.total - memInfo.available;
#else
#warning getMachineRAMInfo unimplemented on this platform
#endif
}
Error systemErrorCodeToError() {
#if defined(_WIN32)
if(GetLastError() == ERROR_IO_DEVICE) {
return io_error();
}
#elif defined(__unixish__)
if(errno == EIO || errno == EROFS) {
return io_error();
}
#else
#error Port me!
#endif
return platform_error();
}
void getDiskBytes(std::string const& directory, int64_t& free, int64_t& total) {
INJECT_FAULT( platform_error, "getDiskBytes" );
#if defined(__unixish__)
#ifdef __linux__
struct statvfs buf;
if (statvfs(directory.c_str(), &buf)) {
Error e = systemErrorCodeToError();
TraceEvent(SevError, "GetDiskBytesStatvfsError").detail("Directory", directory).GetLastError().error(e);
throw e;
}
uint64_t blockSize = buf.f_frsize;
#elif defined(__APPLE__)
struct statfs buf;
if (statfs(directory.c_str(), &buf)) {
Error e = systemErrorCodeToError();
TraceEvent(SevError, "GetDiskBytesStatfsError").detail("Directory", directory).GetLastError().error(e);
throw e;
}
uint64_t blockSize = buf.f_bsize;
#else
#error Unknown unix
#endif
free = std::min( (uint64_t) std::numeric_limits<int64_t>::max(), buf.f_bavail * blockSize );
total = std::min( (uint64_t) std::numeric_limits<int64_t>::max(), buf.f_blocks * blockSize );
#elif defined(_WIN32)
std::string fullPath = abspath(directory);
//TraceEvent("FullDiskPath").detail("Path", fullPath).detail("Disk", (char)toupper(fullPath[0]));
ULARGE_INTEGER freeSpace;
ULARGE_INTEGER totalSpace;
ULARGE_INTEGER totalFreeSpace;
if( !GetDiskFreeSpaceEx( fullPath.c_str(), &freeSpace, &totalSpace, &totalFreeSpace ) ) {
Error e = systemErrorCodeToError();
TraceEvent(SevError, "DiskFreeError").detail("Path", fullPath).GetLastError().error(e);
throw e;
}
total = std::min( (uint64_t) std::numeric_limits<int64_t>::max(), totalSpace.QuadPart );
free = std::min( (uint64_t) std::numeric_limits<int64_t>::max(), freeSpace.QuadPart );
#else
#warning getDiskBytes unimplemented on this platform
free = 1LL<<50;
total = 1LL<<50;
#endif
}
#ifdef __unixish__
const char* getInterfaceName(const IPAddress& _ip) {
INJECT_FAULT( platform_error, "getInterfaceName" );
static char iname[20];
struct ifaddrs* interfaces = NULL;
const char* ifa_name = NULL;
if (getifaddrs(&interfaces)) {
TraceEvent(SevWarnAlways, "GetInterfaceAddrs").GetLastError();
throw platform_error();
}
for (struct ifaddrs* iter = interfaces; iter; iter = iter->ifa_next) {
if(!iter->ifa_addr)
continue;
if (iter->ifa_addr->sa_family == AF_INET && _ip.isV4()) {
uint32_t ip = ntohl(((struct sockaddr_in*)iter->ifa_addr)->sin_addr.s_addr);
if (ip == _ip.toV4()) {
ifa_name = iter->ifa_name;
break;
}
} else if (iter->ifa_addr->sa_family == AF_INET6 && _ip.isV6()) {
struct sockaddr_in6* ifa_addr = (struct sockaddr_in6*)iter->ifa_addr;
if (memcmp(_ip.toV6().data(), &ifa_addr->sin6_addr, 16) == 0) {
ifa_name = iter->ifa_name;
break;
}
}
}
if (ifa_name) {
strncpy(iname, ifa_name, 19);
iname[19] = 0;
}
freeifaddrs(interfaces);
if (ifa_name)
return iname;
else
return NULL;
}
#endif
#if defined(__linux__)
void getNetworkTraffic(const IPAddress& ip, uint64_t& bytesSent, uint64_t& bytesReceived, uint64_t& outSegs,
uint64_t& retransSegs) {
INJECT_FAULT( platform_error, "getNetworkTraffic" ); // Even though this function doesn't throw errors, the equivalents for other platforms do, and since all of our simulation testing is on Linux...
const char* ifa_name = nullptr;
try {
ifa_name = getInterfaceName(ip);
}
catch(Error &e) {
if(e.code() != error_code_platform_error) {
throw;
}
}
if (!ifa_name)
return;
std::ifstream dev_stream("/proc/net/dev", std::ifstream::in);
dev_stream.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
dev_stream.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
std::string iface;
std::string ignore;
uint64_t bytesSentSum = 0;
uint64_t bytesReceivedSum = 0;
while (dev_stream.good()) {
dev_stream >> iface;
if (dev_stream.eof()) break;
if (!strncmp(iface.c_str(), ifa_name, strlen(ifa_name))) {
uint64_t sent = 0, received = 0;
dev_stream >> received;
for (int i = 0; i < 7; i++) dev_stream >> ignore;
dev_stream >> sent;
bytesSentSum += sent;
bytesReceivedSum += received;
dev_stream.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}
}
if(bytesSentSum > 0) {
bytesSent = bytesSentSum;
}
if(bytesReceivedSum > 0) {
bytesReceived = bytesReceivedSum;
}
std::ifstream snmp_stream("/proc/net/snmp", std::ifstream::in);
std::string label;
while (snmp_stream.good()) {
snmp_stream >> label;
snmp_stream.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
if (label == "Tcp:")
break;
}
/* Ignore the first 11 columns of the Tcp line */
for (int i = 0; i < 11; i++)
snmp_stream >> ignore;
snmp_stream >> outSegs;
snmp_stream >> retransSegs;
}
void getMachineLoad(uint64_t& idleTime, uint64_t& totalTime, bool logDetails) {
INJECT_FAULT( platform_error, "getMachineLoad" ); // Even though this function doesn't throw errors, the equivalents for other platforms do, and since all of our simulation testing is on Linux...
std::ifstream stat_stream("/proc/stat", std::ifstream::in);
std::string ignore;
stat_stream >> ignore;
uint64_t t_user, t_nice, t_system, t_idle, t_iowait, t_irq, t_softirq, t_steal, t_guest;
stat_stream >> t_user >> t_nice >> t_system >> t_idle >> t_iowait >> t_irq >> t_softirq >> t_steal >> t_guest;
totalTime = t_user+t_nice+t_system+t_idle+t_iowait+t_irq+t_softirq+t_steal+t_guest;
idleTime = t_idle+t_iowait;
if( !DEBUG_DETERMINISM && logDetails )
TraceEvent("MachineLoadDetail").detail("User", t_user).detail("Nice", t_nice).detail("System", t_system).detail("Idle", t_idle).detail("IOWait", t_iowait).detail("IRQ", t_irq).detail("SoftIRQ", t_softirq).detail("Steal", t_steal).detail("Guest", t_guest);
}
void getDiskStatistics(std::string const& directory, uint64_t& currentIOs, uint64_t& busyTicks, uint64_t& reads, uint64_t& writes, uint64_t& writeSectors, uint64_t& readSectors) {
INJECT_FAULT( platform_error, "getDiskStatistics" );
currentIOs = 0;
struct stat buf;
if (stat(directory.c_str(), &buf)) {
TraceEvent(SevError, "GetDiskStatisticsStatError").detail("Directory", directory).GetLastError();
throw platform_error();
}
std::ifstream proc_stream("/proc/diskstats", std::ifstream::in);
while (proc_stream.good()) {
std::string line;
getline(proc_stream, line);
std::istringstream disk_stream(line, std::istringstream::in);
unsigned int majorId;
unsigned int minorId;
disk_stream >> majorId;
disk_stream >> minorId;
if(majorId == (unsigned int) gnu_dev_major(buf.st_dev) && minorId == (unsigned int) gnu_dev_minor(buf.st_dev)) {
std::string ignore;
uint64_t rd_ios; /* # of reads completed */
// This is the total number of reads completed successfully.
uint64_t rd_merges; /* # of reads merged */
// Reads and writes which are adjacent to each other may be merged for
// efficiency. Thus two 4K reads may become one 8K read before it is
// ultimately handed to the disk, and so it will be counted (and queued)
// as only one I/O. This field lets you know how often this was done.
uint64_t rd_sectors; /*# of sectors read */
// This is the total number of sectors read successfully.
uint64_t rd_ticks; /* # of milliseconds spent reading */
// This is the total number of milliseconds spent by all reads (as
// measured from __make_request() to end_that_request_last()).
uint64_t wr_ios; /* # of writes completed */
// This is the total number of writes completed successfully.
uint64_t wr_merges; /* # of writes merged */
// Reads and writes which are adjacent to each other may be merged for
// efficiency. Thus two 4K reads may become one 8K read before it is
// ultimately handed to the disk, and so it will be counted (and queued)
// as only one I/O. This field lets you know how often this was done.
uint64_t wr_sectors; /* # of sectors written */
// This is the total number of sectors written successfully.
uint64_t wr_ticks; /* # of milliseconds spent writing */
// This is the total number of milliseconds spent by all writes (as
// measured from __make_request() to end_that_request_last()).
uint64_t cur_ios; /* # of I/Os currently in progress */
// The only field that should go to zero. Incremented as requests are
// given to appropriate struct request_queue and decremented as they finish.
uint64_t ticks; /* # of milliseconds spent doing I/Os */
// This field increases so long as field 9 is nonzero.
uint64_t aveq; /* weighted # of milliseconds spent doing I/Os */
// This field is incremented at each I/O start, I/O completion, I/O
// merge, or read of these stats by the number of I/Os in progress
// (field 9) times the number of milliseconds spent doing I/O since the
// last update of this field. This can provide an easy measure of both
// I/O completion time and the backlog that may be accumulating.
disk_stream >> ignore;
disk_stream >> rd_ios;
disk_stream >> rd_merges;
disk_stream >> rd_sectors;
disk_stream >> rd_ticks;
disk_stream >> wr_ios;
disk_stream >> wr_merges;
disk_stream >> wr_sectors;
disk_stream >> wr_ticks;
disk_stream >> cur_ios;
disk_stream >> ticks;
disk_stream >> aveq;
currentIOs = cur_ios;
busyTicks = ticks;
reads = rd_ios;
writes = wr_ios;
writeSectors = wr_sectors;
readSectors = rd_sectors;
//TraceEvent("DiskMetricsRaw").detail("Input", line).detail("Ignore", ignore).detail("RdIos", rd_ios)
// .detail("RdMerges", rd_merges).detail("RdSectors", rd_sectors).detail("RdTicks", rd_ticks).detail("WrIos", wr_ios).detail("WrMerges", wr_merges)
// .detail("WrSectors", wr_sectors).detail("WrTicks", wr_ticks).detail("CurIos", cur_ios).detail("Ticks", ticks).detail("Aveq", aveq)
// .detail("CurrentIOs", currentIOs).detail("BusyTicks", busyTicks).detail("Reads", reads).detail("Writes", writes).detail("WriteSectors", writeSectors)
// .detail("ReadSectors", readSectors);
return;
} else
disk_stream.ignore( std::numeric_limits<std::streamsize>::max(), '\n');
}
if(!g_network->isSimulated()) TraceEvent(SevWarn, "GetDiskStatisticsDeviceNotFound").detail("Directory", directory);
}
dev_t getDeviceId(std::string path) {
struct stat statInfo;
while (true) {
int returnValue = stat(path.c_str(), &statInfo);
if (!returnValue) break;
if (errno == ENOENT) {
path = parentDirectory(path);
} else {
TraceEvent(SevError, "GetDeviceIdError").detail("Path", path).GetLastError();
throw platform_error();
}
}
return statInfo.st_dev;
}
#endif
#ifdef __APPLE__
void getNetworkTraffic(const IPAddress& ip, uint64_t& bytesSent, uint64_t& bytesReceived, uint64_t& outSegs,
uint64_t& retransSegs) {
INJECT_FAULT( platform_error, "getNetworkTraffic" );
const char* ifa_name = nullptr;
try {
ifa_name = getInterfaceName(ip);
}
catch(Error &e) {
if(e.code() != error_code_platform_error) {
throw;
}
}
if (!ifa_name)
return;
int mib[] = {
CTL_NET,
PF_ROUTE,
0,
AF_INET,
NET_RT_IFLIST2,
0 /* If we could get an interface index instead of name, we would pass it here */
};
size_t len;
if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
TraceEvent(SevError, "GetNetworkTrafficError").GetLastError();
throw platform_error();
}
char *buf = (char*)malloc(len);
if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
free(buf);
TraceEvent(SevError, "GetNetworkTrafficReadInterfacesError").GetLastError();
throw platform_error();
}
char *lim = buf + len;
for (char *next = buf; next < lim; ) {
struct if_msghdr* ifm = (struct if_msghdr*)next;
next += ifm->ifm_msglen;
if ((ifm->ifm_type = RTM_IFINFO2)) {
struct if_msghdr2* if2m = (struct if_msghdr2*)ifm;
struct sockaddr_dl *sdl = (struct sockaddr_dl*)(if2m + 1);
if (sdl->sdl_nlen == strlen(ifa_name) && !strncmp(ifa_name, sdl->sdl_data, sdl->sdl_nlen)) {
bytesSent = if2m->ifm_data.ifi_obytes;
bytesReceived = if2m->ifm_data.ifi_ibytes;
outSegs = if2m->ifm_data.ifi_opackets;
retransSegs = 0;
break;
}
}
}
free(buf);
}
void getMachineLoad(uint64_t& idleTime, uint64_t& totalTime, bool logDetails) {
INJECT_FAULT( platform_error, "getMachineLoad" );
mach_msg_type_number_t count = HOST_CPU_LOAD_INFO_COUNT;
host_cpu_load_info_data_t r_load;
if (host_statistics(mach_host_self(), HOST_CPU_LOAD_INFO, (host_info_t)&r_load, &count) != KERN_SUCCESS) {
TraceEvent(SevError, "GetMachineLoad").GetLastError();
throw platform_error();
}
idleTime = r_load.cpu_ticks[CPU_STATE_IDLE];
totalTime = r_load.cpu_ticks[CPU_STATE_IDLE] + r_load.cpu_ticks[CPU_STATE_USER] + r_load.cpu_ticks[CPU_STATE_NICE] + r_load.cpu_ticks[CPU_STATE_SYSTEM];
}
void getDiskStatistics(std::string const& directory, uint64_t& currentIOs, uint64_t& busyTicks, uint64_t& reads, uint64_t& writes, uint64_t& writeSectors, uint64_t& readSectors) {
INJECT_FAULT( platform_error, "getDiskStatistics" );
currentIOs = 0;
busyTicks = 0;
writeSectors = 0;
readSectors = 0;
const int kMaxDiskNameSize = 64;
struct statfs buf;
if (statfs(directory.c_str(), &buf)) {
Error e = systemErrorCodeToError();
TraceEvent(SevError, "GetDiskStatisticsStatfsError").detail("Directory", directory).GetLastError().error(e);
throw e;
}
const char* dev = strrchr(buf.f_mntfromname, '/');
if (!dev) {
TraceEvent(SevError, "GetDiskStatisticsStrrchrError").detail("Directory", directory).GetLastError();
throw platform_error();
}
dev++;
io_iterator_t disk_list;
// According to Apple docs, if this gets passed to IOServiceGetMatchingServices, we aren't responsible for the memory anymore,
// the only case where it isn't passed is if it's null, in which case we also aren't responsible. So no need to call CFRelease
// on this variable.
CFMutableDictionaryRef match = IOBSDNameMatching(kIOMasterPortDefault, kNilOptions, dev);
if(!match) {
TraceEvent(SevError, "IOBSDNameMatching");
throw platform_error();
}
if (IOServiceGetMatchingServices(kIOMasterPortDefault, match, &disk_list) != kIOReturnSuccess) {
TraceEvent(SevError, "IOServiceGetMatchingServices");
throw platform_error();
}
io_registry_entry_t disk = IOIteratorNext(disk_list);
if (!disk) {
IOObjectRelease(disk_list);
TraceEvent(SevError, "IOIteratorNext");
throw platform_error();
}
io_registry_entry_t tdisk = disk;
while (!IOObjectConformsTo(disk, "IOBlockStorageDriver")) {
IORegistryEntryGetParentEntry(disk, kIOServicePlane, &tdisk);
IOObjectRelease(disk);
disk = tdisk;
}
CFDictionaryRef disk_dict = NULL;
if (IORegistryEntryCreateCFProperties(disk, (CFMutableDictionaryRef*)&disk_dict, kCFAllocatorDefault, kNilOptions) != kIOReturnSuccess) {
IOObjectRelease(disk);
IOObjectRelease(disk_list);
TraceEvent(SevError, "IORegistryEntryCreateCFProperties");
throw platform_error();
}
// Here and below, note that memory returned by CFDictionaryGetValue() is not owned by us, and should not be CFRelease()'d by us.
CFDictionaryRef stats_dict = (CFDictionaryRef)CFDictionaryGetValue(disk_dict, CFSTR(kIOBlockStorageDriverStatisticsKey));
if (stats_dict == NULL) {
CFRelease(disk_dict);
IOObjectRelease(disk);
IOObjectRelease(disk_list);
TraceEvent(SevError, "CFDictionaryGetValue");
throw platform_error();
}
CFNumberRef number;
if ((number = (CFNumberRef)CFDictionaryGetValue(stats_dict, CFSTR(kIOBlockStorageDriverStatisticsReadsKey)))) {
CFNumberGetValue(number, kCFNumberSInt64Type, &reads);
}
if ((number = (CFNumberRef)CFDictionaryGetValue(stats_dict, CFSTR(kIOBlockStorageDriverStatisticsWritesKey)))) {
CFNumberGetValue(number, kCFNumberSInt64Type, &writes);
}
CFRelease(disk_dict);
IOObjectRelease(disk);
IOObjectRelease(disk_list);
}
#endif
#if defined(_WIN32)
std::vector<std::string> expandWildcardPath(const char *wildcardPath)
{
PDH_STATUS Status;
char *EndOfPaths;
char *Paths = NULL;
DWORD BufferSize = 0;
std::vector<std::string> results;
Status = PdhExpandCounterPath(wildcardPath, Paths, &BufferSize);
if (Status != PDH_MORE_DATA) {
TraceEvent(SevWarn, "PdhExpandCounterPathError").detail("Reason", "Expand Path call made no sense").detail("Status", Status);
goto Cleanup;
}
Paths = (char *)malloc(BufferSize);
Status = PdhExpandCounterPath(wildcardPath, Paths, &BufferSize);
if (Status != ERROR_SUCCESS) {
TraceEvent(SevWarn, "PdhExpandCounterPathError").detail("Reason", "Expand Path call failed").detail("Status", Status);
goto Cleanup;
}
if (Paths == NULL) {
TraceEvent("WindowsPdhExpandCounterPathError").detail("Reason", "Path could not be expanded");
goto Cleanup;
}
EndOfPaths = Paths + BufferSize;
for (char *p = Paths; ((p != EndOfPaths) && (*p != '\0')); p += strlen(p) + 1) {
results.push_back( p );
//printf("Counter: %s\n", p);
}
Cleanup:
if (Paths)
{
free(Paths);
}
return results;
}
std::vector<HCOUNTER> addCounters( HQUERY Query, const char *path ) {
std::vector<HCOUNTER> counters;
std::vector<std::string> paths = expandWildcardPath( path );
for(int i = 0; i < paths.size(); i++) {
HCOUNTER counter;
handlePdhStatus( PdhAddCounter(Query, paths[i].c_str(), 0, &counter), "PdhAddCounter" );
counters.push_back( counter );
}
return counters;
}
#endif
struct SystemStatisticsState {
double lastTime;
double lastClockThread;
double lastClockProcess;
uint64_t processLastSent;
uint64_t processLastReceived;
#if defined(_WIN32)
struct {
std::string diskDevice;
std::string physicalDisk;
std::string processor;
std::string networkDevice;
std::string tcpv4;
std::string pctIdle;
std::string diskQueueLength;
std::string diskReadsPerSec;
std::string diskWritesPerSec;
std::string diskWriteBytesPerSec;
std::string bytesSentPerSec;
std::string bytesRecvPerSec;
std::string segmentsOutPerSec;
std::string segmentsRetransPerSec;
} pdhStrings;
PDH_STATUS Status;
HQUERY Query;
HCOUNTER QueueLengthCounter;
HCOUNTER DiskTimeCounter;
HCOUNTER ReadsCounter;
HCOUNTER WritesCounter;
HCOUNTER WriteBytesCounter;
std::vector<HCOUNTER> SendCounters;
std::vector<HCOUNTER> ReceiveCounters;
HCOUNTER SegmentsOutCounter;
HCOUNTER SegmentsRetransCounter;
HCOUNTER ProcessorIdleCounter;
SystemStatisticsState() : Query(NULL), QueueLengthCounter(NULL), DiskTimeCounter(NULL),
ReadsCounter(NULL), WritesCounter(NULL), WriteBytesCounter(NULL), ProcessorIdleCounter(NULL),
#elif defined(__unixish__)
uint64_t machineLastSent, machineLastReceived;
uint64_t machineLastOutSegs, machineLastRetransSegs;
uint64_t lastBusyTicks, lastReads, lastWrites, lastWriteSectors, lastReadSectors;
uint64_t lastClockIdleTime, lastClockTotalTime;
SystemStatisticsState() : machineLastSent(0), machineLastReceived(0), machineLastOutSegs(0), machineLastRetransSegs(0),
lastBusyTicks(0), lastReads(0), lastWrites(0), lastWriteSectors(0), lastReadSectors(0), lastClockIdleTime(0), lastClockTotalTime(0),
#else
#error Port me!
#endif
lastTime(0), lastClockThread(0), lastClockProcess(0), processLastSent(0), processLastReceived(0) {}
};
#if defined(_WIN32)
void initPdhStrings(SystemStatisticsState *state, std::string dataFolder) {
if (setPdhString(234, state->pdhStrings.physicalDisk) &&
setPdhString(238, state->pdhStrings.processor) &&
setPdhString(510, state->pdhStrings.networkDevice) &&
setPdhString(638, state->pdhStrings.tcpv4) &&
setPdhString(1482, state->pdhStrings.pctIdle) &&
setPdhString(198, state->pdhStrings.diskQueueLength) &&
setPdhString(214, state->pdhStrings.diskReadsPerSec) &&
setPdhString(216, state->pdhStrings.diskWritesPerSec) &&
setPdhString(222, state->pdhStrings.diskWriteBytesPerSec) &&
setPdhString(506, state->pdhStrings.bytesSentPerSec) &&
setPdhString(264, state->pdhStrings.bytesRecvPerSec) &&
setPdhString(654, state->pdhStrings.segmentsOutPerSec) &&
setPdhString(656, state->pdhStrings.segmentsRetransPerSec)) {
if (!dataFolder.empty()) {
dataFolder = abspath(dataFolder);
char buf[512], buf2[512];
DWORD sz = 512, sz2 = 512;
if (!GetVolumePathName(dataFolder.c_str(), buf, 512)) {
TraceEvent(SevWarn, "GetVolumePathName").GetLastError().detail("Path", dataFolder);
return;
}
if (!GetVolumeNameForVolumeMountPoint(buf, buf2, 512)) {
TraceEvent(SevWarn, "GetVolumeNameForVolumeMountPoint").GetLastError().detail("Path", dataFolder);
return;
}
if (!strlen(buf2)) {
TraceEvent(SevWarn, "WinDiskStatsGetPathError").detail("Path", dataFolder);
return;
}
if (buf2[strlen(buf2) - 1] == '\\')
buf2[strlen(buf2) - 1] = 0;
HANDLE hDevice = CreateFile(buf2, 0, 0, NULL, OPEN_EXISTING, 0, NULL);
if (hDevice == INVALID_HANDLE_VALUE) {
TraceEvent(SevWarn, "CreateFile").GetLastError().detail("Path", dataFolder);
return;
}
STORAGE_DEVICE_NUMBER storage_device;
if (!DeviceIoControl(hDevice, IOCTL_STORAGE_GET_DEVICE_NUMBER, NULL, 0,
&storage_device, sizeof(storage_device), &sz, NULL)) {
TraceEvent(SevWarn, "DeviceIoControl").GetLastError().detail("Path", dataFolder);
return;
}
// Find the drive letter involved!
sz = 512;
if (handlePdhStatus(PdhEnumObjectItems(NULL, NULL, state->pdhStrings.physicalDisk.c_str(),
buf2, &sz2, buf, &sz, PERF_DETAIL_NOVICE, 0), "PdhEnumObjectItems")) {
char *ptr = buf;
while (*ptr) {
if (isdigit(*ptr) && atoi(ptr) == storage_device.DeviceNumber) {
state->pdhStrings.diskDevice = ptr;
break;
}
ptr += strlen(ptr) + 1;
}
}
if (state->pdhStrings.diskDevice.empty()) {
TraceEvent(SevWarn, "WinDiskStatsGetPathError").detail("Path", dataFolder);
return;
}
}
}
}
#endif
SystemStatistics getSystemStatistics(std::string dataFolder, const IPAddress* ip, SystemStatisticsState** statState, bool logDetails) {
if( (*statState) == NULL )
(*statState) = new SystemStatisticsState();
SystemStatistics returnStats;
double nowTime = timer();
double nowClockProcess = getProcessorTimeProcess();
double nowClockThread = getProcessorTimeThread();
returnStats.elapsed = nowTime - (*statState)->lastTime;
returnStats.initialized = (*statState)->lastTime != 0;
if( returnStats.initialized ) {
returnStats.processCPUSeconds = (nowClockProcess - (*statState)->lastClockProcess);
returnStats.mainThreadCPUSeconds = (nowClockThread - (*statState)->lastClockThread);
}
returnStats.processMemory = getMemoryUsage();
returnStats.processResidentMemory = getResidentMemoryUsage();
MachineRAMInfo memInfo;
getMachineRAMInfo(memInfo);
returnStats.machineTotalRAM = memInfo.total;
returnStats.machineCommittedRAM = memInfo.committed;
returnStats.machineAvailableRAM = memInfo.available;
if(dataFolder != "") {
int64_t diskTotal, diskFree;
getDiskBytes(dataFolder, diskFree, diskTotal);
returnStats.processDiskTotalBytes = diskTotal;
returnStats.processDiskFreeBytes = diskFree;
}
#if defined(_WIN32)
if((*statState)->Query == NULL) {
initPdhStrings(*statState, dataFolder);
TraceEvent("SetupQuery");
handlePdhStatus( PdhOpenQuery(NULL, NULL, &(*statState)->Query), "PdhOpenQuery" );
if( !(*statState)->pdhStrings.diskDevice.empty() ) {
handlePdhStatus(PdhAddCounter((*statState)->Query, ("\\" + (*statState)->pdhStrings.physicalDisk + "(" + (*statState)->pdhStrings.diskDevice + ")\\" + (*statState)->pdhStrings.pctIdle).c_str(), 0, &(*statState)->DiskTimeCounter), "PdhAddCounter");
handlePdhStatus(PdhAddCounter((*statState)->Query, ("\\" + (*statState)->pdhStrings.physicalDisk + "(" + (*statState)->pdhStrings.diskDevice + ")\\" + (*statState)->pdhStrings.diskQueueLength).c_str(), 0, &(*statState)->QueueLengthCounter), "PdhAddCounter");
handlePdhStatus(PdhAddCounter((*statState)->Query, ("\\" + (*statState)->pdhStrings.physicalDisk + "(" + (*statState)->pdhStrings.diskDevice + ")\\" + (*statState)->pdhStrings.diskReadsPerSec).c_str(), 0, &(*statState)->ReadsCounter), "PdhAddCounter");
handlePdhStatus(PdhAddCounter((*statState)->Query, ("\\" + (*statState)->pdhStrings.physicalDisk + "(" + (*statState)->pdhStrings.diskDevice + ")\\" + (*statState)->pdhStrings.diskWritesPerSec).c_str(), 0, &(*statState)->WritesCounter), "PdhAddCounter");
handlePdhStatus(PdhAddCounter((*statState)->Query, ("\\" + (*statState)->pdhStrings.physicalDisk + "(" + (*statState)->pdhStrings.diskDevice + ")\\" + (*statState)->pdhStrings.diskWriteBytesPerSec).c_str(), 0, &(*statState)->WriteBytesCounter), "PdhAddCounter");
}
(*statState)->SendCounters = addCounters((*statState)->Query, ("\\" + (*statState)->pdhStrings.networkDevice + "(*)\\" + (*statState)->pdhStrings.bytesSentPerSec).c_str());
(*statState)->ReceiveCounters = addCounters((*statState)->Query, ("\\" + (*statState)->pdhStrings.networkDevice + "(*)\\" + (*statState)->pdhStrings.bytesRecvPerSec).c_str());
handlePdhStatus(PdhAddCounter((*statState)->Query, ("\\" + (*statState)->pdhStrings.tcpv4 + "\\" + (*statState)->pdhStrings.segmentsOutPerSec).c_str(), 0, &(*statState)->SegmentsOutCounter), "PdhAddCounter");
handlePdhStatus(PdhAddCounter((*statState)->Query, ("\\" + (*statState)->pdhStrings.tcpv4 + "\\" + (*statState)->pdhStrings.segmentsRetransPerSec).c_str(), 0, &(*statState)->SegmentsRetransCounter), "PdhAddCounter");
handlePdhStatus(PdhAddCounter((*statState)->Query, ("\\" + (*statState)->pdhStrings.processor + "(*)\\" + (*statState)->pdhStrings.pctIdle).c_str(), 0, &(*statState)->ProcessorIdleCounter), "PdhAddCounter");
}
handlePdhStatus( PdhCollectQueryData((*statState)->Query), "PdhCollectQueryData" );
PDH_FMT_COUNTERVALUE DisplayValue;
if (returnStats.initialized) {
if (!(*statState)->pdhStrings.diskDevice.empty()) {
if( handlePdhStatus( PdhGetFormattedCounterValue((*statState)->DiskTimeCounter, PDH_FMT_DOUBLE, 0, &DisplayValue), "DiskTimeCounter" ) )
returnStats.processDiskIdleSeconds = DisplayValue.doubleValue * returnStats.elapsed / 100.0;
if( handlePdhStatus( PdhGetFormattedCounterValue((*statState)->QueueLengthCounter, PDH_FMT_DOUBLE, 0, &DisplayValue), "QueueLengthCounter" ) )
returnStats.processDiskQueueDepth = DisplayValue.doubleValue;
if( handlePdhStatus( PdhGetFormattedCounterValue((*statState)->ReadsCounter, PDH_FMT_DOUBLE, 0, &DisplayValue), "ReadsCounter" ) )
returnStats.processDiskRead = DisplayValue.doubleValue * returnStats.elapsed;
if( handlePdhStatus( PdhGetFormattedCounterValue((*statState)->WritesCounter, PDH_FMT_DOUBLE, 0, &DisplayValue), "WritesCounter" ) )
returnStats.processDiskWrite = DisplayValue.doubleValue * returnStats.elapsed;
if (handlePdhStatus(PdhGetFormattedCounterValue((*statState)->WriteBytesCounter, PDH_FMT_DOUBLE, 0, &DisplayValue), "WriteBytesCounter"))
returnStats.processDiskWriteSectors = DisplayValue.doubleValue * returnStats.elapsed / 512.0;
}
returnStats.machineMegabitsSent = 0.0;
for( int i = 0; i < (*statState)->SendCounters.size(); i++ )
if( handlePdhStatus( PdhGetFormattedCounterValue((*statState)->SendCounters[i], PDH_FMT_DOUBLE, 0, &DisplayValue), "SendCounter" ) )
returnStats.machineMegabitsSent += DisplayValue.doubleValue * 7.62939453e-6;
returnStats.machineMegabitsSent *= returnStats.elapsed;
returnStats.machineMegabitsReceived = 0.0;
for( int i = 0; i < (*statState)->ReceiveCounters.size(); i++ )
if( handlePdhStatus( PdhGetFormattedCounterValue((*statState)->ReceiveCounters[i], PDH_FMT_DOUBLE, 0, &DisplayValue), "ReceiveCounter" ) )
returnStats.machineMegabitsReceived += DisplayValue.doubleValue * 7.62939453e-6;
returnStats.machineMegabitsReceived *= returnStats.elapsed;
if (handlePdhStatus(PdhGetFormattedCounterValue((*statState)->SegmentsOutCounter, PDH_FMT_DOUBLE, 0, &DisplayValue), "SegmentsOutCounter"))
returnStats.machineOutSegs = DisplayValue.doubleValue * returnStats.elapsed;
if (handlePdhStatus(PdhGetFormattedCounterValue((*statState)->SegmentsRetransCounter, PDH_FMT_DOUBLE, 0, &DisplayValue), "SegmentsRetransCounter"))
returnStats.machineRetransSegs = DisplayValue.doubleValue * returnStats.elapsed;
if( handlePdhStatus( PdhGetFormattedCounterValue((*statState)->ProcessorIdleCounter, PDH_FMT_DOUBLE, 0, &DisplayValue), "ProcessorIdleCounter" ) )
returnStats.machineCPUSeconds = (100 - DisplayValue.doubleValue) * returnStats.elapsed / 100.0;
}
#elif defined(__unixish__)
uint64_t machineNowSent = (*statState)->machineLastSent;
uint64_t machineNowReceived = (*statState)->machineLastReceived;
uint64_t machineOutSegs = (*statState)->machineLastOutSegs;
uint64_t machineRetransSegs = (*statState)->machineLastRetransSegs;
getNetworkTraffic(*ip, machineNowSent, machineNowReceived, machineOutSegs, machineRetransSegs);
if( returnStats.initialized ) {
returnStats.machineMegabitsSent = ((machineNowSent - (*statState)->machineLastSent) * 8e-6);
returnStats.machineMegabitsReceived = ((machineNowReceived - (*statState)->machineLastReceived) * 8e-6);
returnStats.machineOutSegs = machineOutSegs - (*statState)->machineLastOutSegs;
returnStats.machineRetransSegs = machineRetransSegs - (*statState)->machineLastRetransSegs;
}
(*statState)->machineLastSent = machineNowSent;
(*statState)->machineLastReceived = machineNowReceived;
(*statState)->machineLastOutSegs = machineOutSegs;
(*statState)->machineLastRetransSegs = machineRetransSegs;
uint64_t currentIOs;
uint64_t nowBusyTicks = (*statState)->lastBusyTicks;
uint64_t nowReads = (*statState)->lastReads;
uint64_t nowWrites = (*statState)->lastWrites;
uint64_t nowWriteSectors = (*statState)->lastWriteSectors;
uint64_t nowReadSectors = (*statState)->lastReadSectors;
if(dataFolder != "") {
getDiskStatistics(dataFolder, currentIOs, nowBusyTicks, nowReads, nowWrites, nowWriteSectors, nowReadSectors);
returnStats.processDiskQueueDepth = currentIOs;
returnStats.processDiskReadCount = nowReads;
returnStats.processDiskWriteCount = nowWrites;
if( returnStats.initialized ) {
returnStats.processDiskIdleSeconds = std::max<double>(0, returnStats.elapsed - std::min<double>(returnStats.elapsed, (nowBusyTicks - (*statState)->lastBusyTicks) / 1000.0));
returnStats.processDiskRead = (nowReads - (*statState)->lastReads);
returnStats.processDiskWrite = (nowWrites - (*statState)->lastWrites);
returnStats.processDiskWriteSectors = (nowWriteSectors - (*statState)->lastWriteSectors);
returnStats.processDiskReadSectors = (nowReadSectors - (*statState)->lastReadSectors);
}
(*statState)->lastBusyTicks = nowBusyTicks;
(*statState)->lastReads = nowReads;
(*statState)->lastWrites = nowWrites;
(*statState)->lastWriteSectors = nowWriteSectors;
(*statState)->lastReadSectors = nowReadSectors;
}
uint64_t clockIdleTime = (*statState)->lastClockIdleTime;
uint64_t clockTotalTime = (*statState)->lastClockTotalTime;
getMachineLoad(clockIdleTime, clockTotalTime, logDetails);
returnStats.machineCPUSeconds = clockTotalTime - (*statState)->lastClockTotalTime != 0 ? ( 1 - ((clockIdleTime - (*statState)->lastClockIdleTime) / ((double)(clockTotalTime - (*statState)->lastClockTotalTime)))) * returnStats.elapsed : 0;
(*statState)->lastClockIdleTime = clockIdleTime;
(*statState)->lastClockTotalTime = clockTotalTime;
#endif
(*statState)->lastTime = nowTime;
(*statState)->lastClockProcess = nowClockProcess;
(*statState)->lastClockThread = nowClockThread;
return returnStats;
}
#ifdef _WIN32
struct OffsetTimer {
double secondsPerCount, offset;
static const int64_t FILETIME_C_EPOCH = 11644473600LL * 10000000LL; // Difference between FILETIME epoch (1601) and Unix epoch (1970) in 100ns FILETIME ticks
OffsetTimer() {
long long countsPerSecond;
if (!QueryPerformanceFrequency( (LARGE_INTEGER*)&countsPerSecond))
throw performance_counter_error();
secondsPerCount = 1.0 / countsPerSecond;
FILETIME fileTime;
offset = 0;
double timer = now();
GetSystemTimeAsFileTime(&fileTime);
static_assert( sizeof(fileTime) == sizeof(uint64_t), "FILETIME size wrong" );
offset = (*(uint64_t*)&fileTime - FILETIME_C_EPOCH) * 100e-9 - timer;
}
double now() {
long long count;
if (!QueryPerformanceCounter( (LARGE_INTEGER*)&count ))
throw performance_counter_error();
return offset + count * secondsPerCount;
}
};
#elif defined(__linux__)
#define DOUBLETIME(ts) (double(ts.tv_sec) + (ts.tv_nsec * 1e-9))
#ifndef CLOCK_MONOTONIC_RAW
#define CLOCK_MONOTONIC_RAW 4 // Confirmed safe to do with glibc >= 2.11 and kernel >= 2.6.28. No promises with older glibc. Older kernel definitely breaks it.
#endif
struct OffsetTimer {
double offset;
OffsetTimer() {
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
offset = DOUBLETIME(ts);
clock_gettime(CLOCK_MONOTONIC, &ts);
offset -= DOUBLETIME(ts);
}
double now() {
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return (offset + DOUBLETIME(ts));
}
};
#elif defined(__APPLE__)
#include <mach/mach.h>
#include <mach/mach_time.h>
struct OffsetTimer {
mach_timebase_info_data_t timebase_info;
uint64_t offset;
double offset_seconds;
OffsetTimer() {
mach_timebase_info(&timebase_info);
offset = mach_absolute_time();
struct timeval tv;
gettimeofday(&tv, NULL);
offset_seconds = tv.tv_sec + 1e-6 * tv.tv_usec;
}
double now() {
uint64_t elapsed = mach_absolute_time() - offset;
return offset_seconds + double((elapsed * timebase_info.numer) / timebase_info.denom) * 1e-9;
}
};
#else
#error Port me!
#endif
double timer_monotonic() {
static OffsetTimer theTimer;
return theTimer.now();
}
double timer() {
#ifdef _WIN32
static const int64_t FILETIME_C_EPOCH = 11644473600LL * 10000000LL; // Difference between FILETIME epoch (1601) and Unix epoch (1970) in 100ns FILETIME ticks
FILETIME fileTime;
GetSystemTimeAsFileTime(&fileTime);
static_assert( sizeof(fileTime) == sizeof(uint64_t), "FILETIME size wrong" );
return (*(uint64_t*)&fileTime - FILETIME_C_EPOCH) * 100e-9;
#elif defined(__linux__)
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
return double(ts.tv_sec) + (ts.tv_nsec * 1e-9);
#elif defined(__APPLE__)
struct timeval tv;
gettimeofday(&tv, NULL);
return double(tv.tv_sec) + (tv.tv_usec * 1e-6);
#else
#error Port me!
#endif
};
uint64_t timer_int() {
#ifdef _WIN32
static const int64_t FILETIME_C_EPOCH = 11644473600LL * 10000000LL; // Difference between FILETIME epoch (1601) and Unix epoch (1970) in 100ns FILETIME ticks
FILETIME fileTime;
GetSystemTimeAsFileTime(&fileTime);
static_assert( sizeof(fileTime) == sizeof(uint64_t), "FILETIME size wrong" );
return (*(uint64_t*)&fileTime - FILETIME_C_EPOCH);
#elif defined(__linux__)
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
return uint64_t(ts.tv_sec) * 1e9 + ts.tv_nsec;
#elif defined(__APPLE__)
struct timeval tv;
gettimeofday(&tv, NULL);
return uint64_t(tv.tv_sec) * 1e9 + (tv.tv_usec * 1e3);
#else
#error Port me!
#endif
};
void getLocalTime(const time_t *timep, struct tm *result) {
#ifdef _WIN32
if(localtime_s(result, timep) != 0) {
TraceEvent(SevError, "GetLocalTimeError").GetLastError();
throw platform_error();
}
#elif defined(__unixish__)
if(localtime_r(timep, result) == NULL) {
TraceEvent(SevError, "GetLocalTimeError").GetLastError();
throw platform_error();
}
#else
#error Port me!
#endif
}
void setMemoryQuota( size_t limit ) {
#if defined(USE_ASAN)
// ASAN doesn't work with memory quotas: https://github.com/google/sanitizers/wiki/AddressSanitizer#ulimit--v
return;
#endif
INJECT_FAULT( platform_error, "setMemoryQuota" );
#if defined(_WIN32)
HANDLE job = CreateJobObject( NULL, NULL );
if (!job) {
TraceEvent(SevError, "WinCreateJobError").GetLastError();
throw platform_error();
}
JOBOBJECT_EXTENDED_LIMIT_INFORMATION limits;
limits.BasicLimitInformation.LimitFlags = JOB_OBJECT_LIMIT_JOB_MEMORY;
limits.JobMemoryLimit = limit;
if (!SetInformationJobObject( job, JobObjectExtendedLimitInformation, &limits, sizeof(limits) )) {
TraceEvent(SevError, "FailedToSetInfoOnJobObject").detail("Limit", limit).GetLastError();
throw platform_error();
}
if (!AssignProcessToJobObject( job, GetCurrentProcess() ))
TraceEvent(SevWarn, "FailedToSetMemoryLimit").GetLastError();
#elif defined(__linux__)
struct rlimit rlim;
if (getrlimit(RLIMIT_AS, &rlim)) {
TraceEvent(SevError, "GetMemoryLimit").GetLastError();
throw platform_error();
} else if (limit > rlim.rlim_max) {
TraceEvent(SevError, "MemoryLimitTooHigh").detail("Limit", limit).detail("ResidentMaxLimit", rlim.rlim_max);
throw platform_error();
}
rlim.rlim_cur = limit;
if (setrlimit(RLIMIT_AS, &rlim)) {
TraceEvent(SevError, "SetMemoryLimit").detail("Limit", limit).GetLastError();
throw platform_error();
}
#endif
}
#ifdef _WIN32
static int ModifyPrivilege( const char* szPrivilege, bool fEnable )
{
HRESULT hr = S_OK;
TOKEN_PRIVILEGES NewState;
LUID luid;
HANDLE hToken = NULL;
// Open the process token for this process.
if (!OpenProcessToken( GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,
&hToken ))
{
TraceEvent( SevWarn, "OpenProcessTokenError" ).error(large_alloc_failed()).GetLastError();
return ERROR_FUNCTION_FAILED;
}
// Get the local unique ID for the privilege.
if ( !LookupPrivilegeValue( NULL,
szPrivilege,
&luid ))
{
CloseHandle( hToken );
TraceEvent( SevWarn, "LookupPrivilegeValue" ).error(large_alloc_failed()).GetLastError();
return ERROR_FUNCTION_FAILED;
}
//cout << luid.HighPart << " " << luid.LowPart << endl;
// Assign values to the TOKEN_PRIVILEGE structure.
NewState.PrivilegeCount = 1;
NewState.Privileges[0].Luid = luid;
NewState.Privileges[0].Attributes =
(fEnable ? SE_PRIVILEGE_ENABLED : 0);
// Adjust the token privilege.
if (!AdjustTokenPrivileges(hToken,
FALSE,
&NewState,
0,
NULL,
NULL))
{
TraceEvent( SevWarn, "AdjustTokenPrivileges" ).error(large_alloc_failed()).GetLastError();
hr = ERROR_FUNCTION_FAILED;
}
// Close the handle.
CloseHandle(hToken);
return hr;
}
#endif
static bool largePagesPrivilegeEnabled = false;
static void enableLargePages() {
if (largePagesPrivilegeEnabled)
return;
#ifdef _WIN32
ModifyPrivilege(SE_LOCK_MEMORY_NAME, true);
largePagesPrivilegeEnabled = true;
#else
// SOMEDAY: can/should we teach the client how to enable large pages
// on Linux? Or just rely on the system to have been configured as
// desired?
#endif
}
static void *allocateInternal(size_t length, bool largePages) {
void *block = NULL;
#ifdef _WIN32
DWORD allocType = MEM_COMMIT|MEM_RESERVE;
if (largePages)
allocType |= MEM_LARGE_PAGES;
return VirtualAlloc(NULL, length, allocType, PAGE_READWRITE);
#elif defined(__linux__)
int flags = MAP_PRIVATE|MAP_ANONYMOUS;
if (largePages)
flags |= MAP_HUGETLB;
return mmap(NULL, length, PROT_READ|PROT_WRITE, flags, -1, 0);
#elif defined(__APPLE__)
int flags = MAP_PRIVATE|MAP_ANON;
return mmap(NULL, length, PROT_READ|PROT_WRITE, flags, -1, 0);
#else
#error Port me!
#endif
}
static bool largeBlockFail = false;
void *allocate(size_t length, bool allowLargePages) {
if (allowLargePages)
enableLargePages();
void *block = ALLOC_FAIL;
if (allowLargePages && !largeBlockFail) {
block = allocateInternal(length, true);
if (block == ALLOC_FAIL) largeBlockFail = true;
}
if (block == ALLOC_FAIL)
block = allocateInternal(length, false);
// FIXME: SevWarnAlways trace if "close" to out of memory
if (block == ALLOC_FAIL)
platform::outOfMemory();
return block;
}
#if 0
void* numaAllocate(size_t size) {
void* thePtr = (void*)0xA00000000LL;
enableLargePages();
size_t vaPageSize = 2<<20;//64<<10;
int nVAPages = size / vaPageSize;
int nodes;
if (!GetNumaHighestNodeNumber((PULONG)&nodes)) {
TraceEvent(SevError, "GetNumaHighestNodeNumber").getLastError();
throw platform_error();
}
++nodes;
for(int i=0; i<nodes; i++) {
char* p = (char*)thePtr + i*nVAPages/nodes*vaPageSize;
char* e = (char*)thePtr + (i+1)*nVAPages/nodes*vaPageSize;
//printf(" %p + %lld\n", p, e-p);
// SOMEDAY: removed NUMA extensions for compatibity with Windows Server 2003 -- make execution dynamic
if (!VirtualAlloc/*ExNuma*/(/*GetCurrentProcess(),*/ p, e-p, MEM_COMMIT|MEM_RESERVE|MEM_LARGE_PAGES, PAGE_READWRITE/*, i*/)) {
Error e = platform_error();
TraceEvent(e, "VirtualAlloc").GetLastError();
throw e;
}
}
return thePtr;
}
#endif
void setAffinity(int proc) {
#if defined(_WIN32)
/*if (SetProcessAffinityMask(GetCurrentProcess(), 0x5555))//0x5555555555555555UL))
printf("Set affinity mask\n");
else
printf("Failed to set affinity mask: error %d\n", GetLastError());*/
SetThreadAffinityMask( GetCurrentThread(), 1ULL<<proc );
#elif defined(__linux__)
cpu_set_t set;
CPU_ZERO(&set);
CPU_SET(proc, &set);
sched_setaffinity(0, sizeof(cpu_set_t), &set);
#endif
}
namespace platform {
int getRandomSeed() {
INJECT_FAULT( platform_error, "getRandomSeed" );
int randomSeed;
int retryCount = 0;
#ifdef _WIN32
do {
retryCount++;
if( rand_s( (unsigned int *)&randomSeed ) != 0 ) {
TraceEvent(SevError, "WindowsRandomSeedError");
throw platform_error();
}
} while (randomSeed == 0 && retryCount < FLOW_KNOBS->RANDOMSEED_RETRY_LIMIT); // randomSeed cannot be 0 since we use mersenne twister in DeterministicRandom. Get a new one if randomSeed is 0.
#else
int devRandom = open("/dev/urandom", O_RDONLY);
do {
retryCount++;
if (read(devRandom, &randomSeed, sizeof(randomSeed)) != sizeof(randomSeed) ) {
TraceEvent(SevError, "OpenURandom").GetLastError();
throw platform_error();
}
} while (randomSeed == 0 && retryCount < FLOW_KNOBS->RANDOMSEED_RETRY_LIMIT);
close(devRandom);
#endif
if (randomSeed == 0) {
TraceEvent(SevError, "RandomSeedZeroError");
throw platform_error();
}
return randomSeed;
}
}; // namespace platform
std::string joinPath( std::string const& directory, std::string const& filename ) {
auto d = directory;
auto f = filename;
while (f.size() && (f[0] == '/' || f[0] == CANONICAL_PATH_SEPARATOR))
f = f.substr(1);
while (d.size() && (d.back() == '/' || d.back() == CANONICAL_PATH_SEPARATOR))
d.resize(d.size() - 1);
return d + CANONICAL_PATH_SEPARATOR + f;
}
void renamedFile() {
INJECT_FAULT( io_error, "renameFile" );
}
void renameFile( std::string const& fromPath, std::string const& toPath ) {
INJECT_FAULT( io_error, "renameFile" );
#ifdef _WIN32
if (MoveFile( fromPath.c_str(), toPath.c_str() )) {
//renamedFile();
return;
}
#elif (defined(__linux__) || defined(__APPLE__))
if (!rename( fromPath.c_str(), toPath.c_str() )) {
//FIXME: We cannot inject faults after renaming the file, because we could end up with two asyncFileNonDurable open for the same file
//renamedFile();
return;
}
#else
#error Port me!
#endif
TraceEvent(SevError, "RenameFile").detail("FromPath", fromPath).detail("ToPath", toPath).GetLastError();
throw io_error();
}
void atomicReplace( std::string const& path, std::string const& content, bool textmode ) {
FILE* f = 0;
try {
INJECT_FAULT( io_error, "atomicReplace" );
std::string tempfilename = joinPath(parentDirectory(path), g_random->randomUniqueID().toString() + ".tmp");
f = textmode ? fopen( tempfilename.c_str(), "wt" ) : fopen(tempfilename.c_str(), "wb");
if(!f)
throw io_error();
#ifdef _WIN32
// In Windows case, ReplaceFile API is used which preserves the ownership,
// ACLs and other attributes of the original file
#elif defined(__unixish__)
// get the uid/gid/mode bits of old file and set it on new file, else fail
struct stat info;
bool exists = true;
if (stat(path.c_str(), &info) < 0) {
if (errno == ENOENT) {
exists = false;
} else {
TraceEvent("StatFailed").detail("Path", path);
throw io_error();
}
}
if (exists && chown(tempfilename.c_str(), info.st_uid, info.st_gid) < 0) {
TraceEvent("ChownFailed")
.detail("TempFilename", tempfilename)
.detail("OriginalFile", path)
.detail("Uid", info.st_uid)
.detail("Gid", info.st_gid);
deleteFile(tempfilename);
throw io_error();
}
if (exists && chmod(tempfilename.c_str(), info.st_mode) < 0) {
TraceEvent("ChmodFailed")
.detail("TempFilename", tempfilename)
.detail("OriginalFile", path)
.detail("Mode", info.st_mode);
deleteFile(tempfilename);
throw io_error();
}
#else
#error Port me!
#endif
if( textmode && fprintf( f, "%s", content.c_str() ) < 0)
throw io_error();
if (!textmode && fwrite(content.c_str(), sizeof(uint8_t), content.size(), f) != content.size())
throw io_error();
if(fflush(f) != 0)
throw io_error();
#ifdef _WIN32
HANDLE h = (HANDLE)_get_osfhandle(_fileno(f));
if(!g_network->isSimulated()) {
if(!FlushFileBuffers(h))
throw io_error();
}
if(fclose(f) != 0) {
f = 0;
throw io_error();
}
f = 0;
if(!ReplaceFile( path.c_str(), tempfilename.c_str(), NULL, NULL, NULL, NULL ))
throw io_error();
#elif defined(__unixish__)
if(!g_network->isSimulated()) {
if(fsync( fileno(f) ) != 0)
throw io_error();
}
if(fclose(f) != 0) {
f = 0;
throw io_error();
}
f = 0;
if(rename( tempfilename.c_str(), path.c_str() ) != 0)
throw io_error();
#else
#error Port me!
#endif
INJECT_FAULT( io_error, "atomicReplace" );
}
catch(Error &e) {
TraceEvent(SevWarn, "AtomicReplace").error(e).detail("Path", path).GetLastError();
if (f) fclose(f);
throw;
}
}
static bool deletedFile() {
INJECT_FAULT( platform_error, "deleteFile" );
return true;
}
bool deleteFile( std::string const& filename ) {
INJECT_FAULT( platform_error, "deleteFile" );
#ifdef _WIN32
if (DeleteFile(filename.c_str()))
return deletedFile();
if (GetLastError() == ERROR_FILE_NOT_FOUND)
return false;
#elif defined(__unixish__)
if (!unlink( filename.c_str() ))
return deletedFile();
if (errno == ENOENT)
return false;
#else
#error Port me!
#endif
Error e = systemErrorCodeToError();
TraceEvent(SevError, "DeleteFile").detail("Filename", filename).GetLastError().error(e);
throw errno;
}
static void createdDirectory() { INJECT_FAULT( platform_error, "createDirectory" ); }
namespace platform {
bool createDirectory( std::string const& directory ) {
INJECT_FAULT( platform_error, "createDirectory" );
#ifdef _WIN32
if (CreateDirectory( directory.c_str(), NULL )) {
createdDirectory();
return true;
}
if (GetLastError() == ERROR_ALREADY_EXISTS)
return false;
if (GetLastError() == ERROR_PATH_NOT_FOUND) {
size_t delim = directory.find_last_of("/\\");
if (delim != std::string::npos) {
createDirectory( directory.substr(0, delim) );
return createDirectory( directory );
}
}
Error e = systemErrorCodeToError();
TraceEvent(SevError, "CreateDirectory").detail("Directory", directory).GetLastError().error(e);
throw e;
#elif (defined(__linux__) || defined(__APPLE__))
size_t sep = 0;
do {
sep = directory.find_first_of('/', sep + 1);
if ( mkdir( directory.substr(0, sep).c_str(), 0755 ) != 0 ) {
if (errno == EEXIST)
continue;
Error e;
if(errno == EACCES) {
e = file_not_writable();
}
else {
e = systemErrorCodeToError();
}
TraceEvent(SevError, "CreateDirectory").detail("Directory", directory).GetLastError().error(e);
throw e;
}
createdDirectory();
} while (sep != std::string::npos && sep != directory.length() - 1);
return true;
#else
#error Port me!
#endif
}
}; // namespace platform
const uint8_t separatorChar = CANONICAL_PATH_SEPARATOR;
StringRef separator(&separatorChar, 1);
StringRef dotdot = LiteralStringRef("..");
std::string cleanPath(std::string const &path) {
std::vector<StringRef> finalParts;
bool absolute = !path.empty() && path[0] == CANONICAL_PATH_SEPARATOR;
StringRef p(path);
while(p.size() != 0) {
StringRef part = p.eat(separator);
if(part.size() == 0 || (part.size() == 1 && part[0] == '.'))
continue;
if(part == dotdot) {
if(!finalParts.empty() && finalParts.back() != dotdot) {
finalParts.pop_back();
continue;
}
if(absolute) {
continue;
}
}
finalParts.push_back(part);
}
std::string result;
result.reserve(PATH_MAX);
if(absolute) {
result.append(1, CANONICAL_PATH_SEPARATOR);
}
for(int i = 0; i < finalParts.size(); ++i) {
if(i != 0) {
result.append(1, CANONICAL_PATH_SEPARATOR);
}
result.append((const char *)finalParts[i].begin(), finalParts[i].size());
}
return result.empty() ? "." : result;
}
// Removes the last component from a path string (if possible) and returns the result with one trailing separator.
// If there is only one path component, the result will be "" for relative paths and "/" for absolute paths.
// Note that this is NOT the same as getting the parent of path, as the final component could be ".."
// or "." and it would still be simply removed.
// ALL of the following inputs will yield the result "/a/"
// /a/b
// /a/b/
// /a/..
// /a/../
// /a/.
// /a/./
// /a//..//
std::string popPath(const std::string &path) {
int i = path.size() - 1;
// Skip over any trailing separators
while(i >= 0 && path[i] == CANONICAL_PATH_SEPARATOR) {
--i;
}
// Skip over non separators
while(i >= 0 && path[i] != CANONICAL_PATH_SEPARATOR) {
--i;
}
// Skip over trailing separators again
bool foundSeparator = false;
while(i >= 0 && path[i] == CANONICAL_PATH_SEPARATOR) {
--i;
foundSeparator = true;
}
if(foundSeparator) {
++i;
}
else {
// If absolute then we popped off the only path component so return "/"
if(!path.empty() && path.front() == CANONICAL_PATH_SEPARATOR) {
return "/";
}
}
return path.substr(0, i + 1);
}
std::string abspath( std::string const& path, bool resolveLinks, bool mustExist ) {
if(path.empty()) {
Error e = platform_error();
Severity sev = e.code() == error_code_io_error ? SevError : SevWarnAlways;
TraceEvent(sev, "AbsolutePathError").detail("Path", path).error(e);
throw e;
}
// Returns an absolute path canonicalized to use only CANONICAL_PATH_SEPARATOR
INJECT_FAULT( platform_error, "abspath" );
if(!resolveLinks) {
// TODO: Not resolving symbolic links does not yet behave well on Windows because of drive letters
// and network names, so it's not currently allowed here (but it is allowed in fdbmonitor which is unix-only)
ASSERT(false);
// Treat paths starting with ~ or separator as absolute, meaning they shouldn't be appended to the current working dir
bool absolute = !path.empty() && (path[0] == CANONICAL_PATH_SEPARATOR || path[0] == '~');
std::string clean = cleanPath(absolute ? path : joinPath(platform::getWorkingDirectory(), path));
if(mustExist && !fileExists(clean)) {
Error e = systemErrorCodeToError();
Severity sev = e.code() == error_code_io_error ? SevError : SevWarnAlways;
TraceEvent(sev, "AbsolutePathError").detail("Path", path).GetLastError().error(e);
throw e;
}
return clean;
}
#ifdef _WIN32
char nameBuffer[MAX_PATH];
if(!GetFullPathName(path.c_str(), MAX_PATH, nameBuffer, NULL) || (mustExist && !fileExists(nameBuffer))) {
Error e = systemErrorCodeToError();
Severity sev = e.code() == error_code_io_error ? SevError : SevWarnAlways;
TraceEvent(sev, "AbsolutePathError").detail("Path", path).GetLastError().error(e);
throw e;
}
// Not totally obvious from the help whether GetFullPathName canonicalizes slashes, so let's do it...
for(char*x = nameBuffer; *x; x++)
if (*x == '/')
*x = CANONICAL_PATH_SEPARATOR;
return nameBuffer;
#elif (defined(__linux__) || defined(__APPLE__))
char result[PATH_MAX];
// Must resolve links, so first try realpath on the whole thing
const char *r = realpath( path.c_str(), result );
if(r == nullptr) {
// If the error was ENOENT and the path doesn't have to exist,
// try to resolve symlinks in progressively shorter prefixes of the path
if(errno == ENOENT && !mustExist) {
std::string prefix = popPath(path);
std::string suffix = path.substr(prefix.size());
if(prefix.empty() && (suffix.empty() || suffix[0] != '~')) {
prefix = ".";
}
if(!prefix.empty()) {
return cleanPath(joinPath(abspath(prefix, true, false), suffix));
}
}
Error e = systemErrorCodeToError();
Severity sev = e.code() == error_code_io_error ? SevError : SevWarnAlways;
TraceEvent(sev, "AbsolutePathError").detail("Path", path).GetLastError().error(e);
throw e;
}
return std::string(r);
#else
#error Port me!
#endif
}
std::string parentDirectory( std::string const& path, bool resolveLinks, bool mustExist ) {
return popPath(abspath(path, resolveLinks, mustExist));
}
std::string basename( std::string const& filename ) {
auto abs = abspath(filename);
size_t sep = abs.find_last_of( CANONICAL_PATH_SEPARATOR );
if (sep == std::string::npos) return filename;
return abs.substr(sep+1);
}
std::string getUserHomeDirectory() {
#if defined(__unixish__)
const char* ret = getenv( "HOME" );
if ( !ret ) {
if ( struct passwd *pw = getpwuid( getuid() ) ) {
ret = pw->pw_dir;
}
}
return ret;
#elif defined(_WIN32)
TCHAR szPath[MAX_PATH];
if( SHGetFolderPath(NULL, CSIDL_PROFILE, NULL, 0, szPath) != S_OK ) {
TraceEvent(SevError, "GetUserHomeDirectory").GetLastError();
throw platform_error();
}
std::string path(szPath);
return path;
#else
#error Port me!
#endif
}
#ifdef _WIN32
#define FILE_ATTRIBUTE_DATA DWORD
#elif (defined(__linux__) || defined(__APPLE__))
#define FILE_ATTRIBUTE_DATA mode_t
#else
#error Port me!
#endif
bool acceptFile( FILE_ATTRIBUTE_DATA fileAttributes, std::string name, std::string extension ) {
#ifdef _WIN32
return !(fileAttributes & FILE_ATTRIBUTE_DIRECTORY) && StringRef(name).endsWith(extension);
#elif (defined(__linux__) || defined(__APPLE__))
return S_ISREG(fileAttributes) && StringRef(name).endsWith(extension);
#else
#error Port me!
#endif
}
bool acceptDirectory( FILE_ATTRIBUTE_DATA fileAttributes, std::string name, std::string extension ) {
#ifdef _WIN32
return (fileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
#elif (defined(__linux__) || defined(__APPLE__))
return S_ISDIR(fileAttributes);
#else
#error Port me!
#endif
}
std::vector<std::string> findFiles( std::string const& directory, std::string const& extension,
bool (*accept_file)(FILE_ATTRIBUTE_DATA, std::string, std::string)) {
INJECT_FAULT( platform_error, "findFiles" );
std::vector<std::string> result;
#ifdef _WIN32
WIN32_FIND_DATA fd;
HANDLE h = FindFirstFile( (directory + "/*" + extension).c_str(), &fd );
if (h == INVALID_HANDLE_VALUE) {
if (GetLastError() != ERROR_FILE_NOT_FOUND && GetLastError() != ERROR_PATH_NOT_FOUND) {
TraceEvent(SevError, "FindFirstFile").detail("Directory", directory).detail("Extension", extension).GetLastError();
throw platform_error();
}
} else {
while (true) {
std::string name = fd.cFileName;
if ((*accept_file)(fd.dwFileAttributes, name, extension)) {
result.push_back( name );
}
if (!FindNextFile( h, &fd ))
break;
}
if (GetLastError() != ERROR_NO_MORE_FILES) {
TraceEvent(SevError, "FindNextFile").detail("Directory", directory).detail("Extension", extension).GetLastError();
FindClose(h);
throw platform_error();
}
FindClose(h);
}
#elif (defined(__linux__) || defined(__APPLE__))
DIR *dip;
if ((dip = opendir(directory.c_str())) != NULL) {
struct dirent *dit;
while ((dit = readdir(dip)) != NULL) {
std::string name(dit->d_name);
struct stat buf;
if (stat(joinPath(directory, name).c_str(), &buf)) {
bool isError = errno != ENOENT;
TraceEvent(isError ? SevError : SevWarn, "StatFailed")
.detail("Directory", directory)
.detail("Extension", extension)
.detail("Name", name)
.GetLastError();
if( isError )
throw platform_error();
else
continue;
}
if ((*accept_file)(buf.st_mode, name, extension))
result.push_back( name );
}
closedir(dip);
}
#else
#error Port me!
#endif
std::sort(result.begin(), result.end());
return result;
}
namespace platform {
std::vector<std::string> listFiles( std::string const& directory, std::string const& extension ) {
return findFiles( directory, extension, &acceptFile );
}
std::vector<std::string> listDirectories( std::string const& directory ) {
return findFiles( directory, "", &acceptDirectory );
}
void findFilesRecursively(std::string path, std::vector<std::string> &out) {
// Add files to output, prefixing path
std::vector<std::string> files = platform::listFiles(path);
for(auto const &f : files)
out.push_back(joinPath(path, f));
// Recurse for directories
std::vector<std::string> directories = platform::listDirectories(path);
for(auto const &dir : directories) {
if(dir != "." && dir != "..")
findFilesRecursively(joinPath(path, dir), out);
}
};
}; // namespace platform
void threadSleep( double seconds ) {
#ifdef _WIN32
Sleep( (DWORD)(seconds * 1e3) );
#elif (defined(__linux__) || defined(__APPLE__))
struct timespec req, rem;
req.tv_sec = seconds;
req.tv_nsec = (seconds - req.tv_sec) * 1e9L;
while (nanosleep(&req, &rem) == -1 && errno == EINTR) {
req.tv_sec = rem.tv_sec;
req.tv_nsec = rem.tv_nsec;
}
#else
#error Port me!
#endif
}
void threadYield() {
#ifdef _WIN32
Sleep(0);
#elif defined( __unixish__ )
sched_yield();
#else
#error Port me!
#endif
}
namespace platform {
void makeTemporary( const char* filename ) {
#ifdef _WIN32
SetFileAttributes(filename, FILE_ATTRIBUTE_TEMPORARY);
#endif
}
}; // namespace platform
#ifdef _WIN32
THREAD_HANDLE startThread(void (*func) (void *), void *arg) {
return (void *)_beginthread(func, 0, arg);
}
#elif (defined(__linux__) || defined(__APPLE__))
THREAD_HANDLE startThread(void *(*func) (void *), void *arg) {
pthread_t t;
pthread_create(&t, NULL, func, arg);
return t;
}
#else
#error Port me!
#endif
void waitThread(THREAD_HANDLE thread) {
#ifdef _WIN32
WaitForSingleObject(thread, INFINITE);
#elif (defined(__linux__) || defined(__APPLE__))
pthread_join(thread, NULL);
#else
#error Port me!
#endif
}
void deprioritizeThread() {
#ifdef __linux__
int tid = syscall(SYS_gettid);
setpriority( PRIO_PROCESS, tid, 10 );
#elif defined(_WIN32)
#endif
}
bool fileExists(std::string const& filename) {
FILE* f = fopen(filename.c_str(), "rb");
if (!f) return false;
fclose(f);
return true;
}
bool directoryExists(std::string const& path) {
#ifdef _WIN32
DWORD bits = ::GetFileAttributes(path.c_str());
return bits != INVALID_FILE_ATTRIBUTES && (bits & FILE_ATTRIBUTE_DIRECTORY);
#else
DIR *d = opendir(path.c_str());
if(d == nullptr)
return false;
closedir(d);
return true;
#endif
}
int64_t fileSize(std::string const& filename) {
#ifdef _WIN32
struct _stati64 file_status;
if(_stati64(filename.c_str(), &file_status) != 0)
return 0;
else
return file_status.st_size;
#elif (defined(__linux__) || defined(__APPLE__))
struct stat file_status;
if(stat(filename.c_str(), &file_status) != 0)
return 0;
else
return file_status.st_size;
#else
#error Port me!
#endif
}
std::string readFileBytes( std::string const& filename, int maxSize ) {
std::string s;
FILE* f = fopen(filename.c_str(), "rb");
if (!f) throw file_not_readable();
try {
fseek(f, 0, SEEK_END);
size_t size = ftell(f);
if (size > maxSize)
throw file_too_large();
s.resize( size );
fseek(f, 0, SEEK_SET);
if (!fread( &s[0], size, 1, f ))
throw file_not_readable();
} catch (...) {
fclose(f);
throw;
}
fclose(f);
return s;
}
void writeFileBytes(std::string const& filename, const uint8_t* data, size_t count) {
FILE* f = fopen(filename.c_str(), "wb");
if (!f)
{
TraceEvent(SevError, "WriteFileBytes").detail("Filename", filename).GetLastError();
throw file_not_writable();
}
try {
size_t length = fwrite(data, sizeof(uint8_t), count, f);
if (length != count)
{
TraceEvent(SevError, "WriteFileBytes").detail("Filename", filename).detail("WrittenLength", length).GetLastError();
throw file_not_writable();
}
}
catch (...) {
fclose(f);
throw;
}
fclose(f);
}
void writeFile(std::string const& filename, std::string const& content) {
writeFileBytes(filename, (const uint8_t*)(content.c_str()), content.size());
}
namespace platform {
bool getEnvironmentVar(const char* name, std::string& value) {
#if defined(__unixish__)
char* val = getenv(name);
if (val) {
value = std::string(val);
return true;
}
return false;
#elif defined(_WIN32)
int len = GetEnvironmentVariable(name, NULL, 0);
if (len == 0) {
if (GetLastError() == ERROR_ENVVAR_NOT_FOUND) {
return false;
}
TraceEvent(SevError, "GetEnvironmentVariable").detail("Name", name).GetLastError();
throw platform_error();
}
value.resize(len);
int rc = GetEnvironmentVariable(name, &value[0], len);
if (rc + 1 != len) {
TraceEvent(SevError, "WrongEnvVarLength")
.detail("ExpectedLength", len)
.detail("ReceivedLength", rc + 1);
throw platform_error();
}
value.resize(len-1);
return true;
#else
#error Port me!
#endif
}
int setEnvironmentVar(const char *name, const char *value, int overwrite)
{
#if defined(_WIN32)
int errcode = 0;
if(!overwrite) {
size_t envsize = 0;
errcode = getenv_s(&envsize, NULL, 0, name);
if(errcode || envsize) return errcode;
}
return _putenv_s(name, value);
#else
return setenv(name, value, overwrite);
#endif
}
#if defined(_WIN32)
#define getcwd(buf, maxlen) _getcwd(buf, maxlen)
#endif
std::string getWorkingDirectory() {
char *buf;
if( (buf = getcwd(NULL, 0)) == NULL ) {
TraceEvent(SevWarnAlways, "GetWorkingDirectoryError").GetLastError();
throw platform_error();
}
std::string result(buf);
free(buf);
return result;
}
}; // namespace platform
extern std::string format( const char *form, ... );
namespace platform {
std::string getDefaultPluginPath( const char* plugin_name ) {
#ifdef _WIN32
std::string installPath;
if(!platform::getEnvironmentVar("FOUNDATIONDB_INSTALL_PATH", installPath)) {
// This is relying of the DLL search order to load the plugin,
// starting in the same directory as the executable.
return plugin_name;
}
return format( "%splugins\\%s.dll", installPath.c_str(), plugin_name );
#elif defined(__linux__)
return format( "/usr/lib/foundationdb/plugins/%s.so", plugin_name );
#elif defined(__APPLE__)
return format( "/usr/local/foundationdb/plugins/%s.dylib", plugin_name );
#else
#error Port me!
#endif
}
}; // namespace platform
#ifdef ALLOC_INSTRUMENTATION
#define TRACEALLOCATOR( size ) TraceEvent("MemSample").detail("Count", FastAllocator<size>::getApproximateMemoryUnused()/size).detail("TotalSize", FastAllocator<size>::getApproximateMemoryUnused()).detail("SampleCount", 1).detail("Hash", "FastAllocatedUnused" #size ).detail("Bt", "na")
#ifdef __linux__
#include <cxxabi.h>
#endif
uint8_t *g_extra_memory;
#endif
namespace platform {
void outOfMemory() {
#ifdef ALLOC_INSTRUMENTATION
delete [] g_extra_memory;
std::vector< std::pair<std::string, const char*> > typeNames;
for( auto i = allocInstr.begin(); i != allocInstr.end(); ++i ) {
std::string s;
#ifdef __linux__
char *demangled = abi::__cxa_demangle(i->first, NULL, NULL, NULL);
if (demangled) {
s = demangled;
if (StringRef(s).startsWith(LiteralStringRef("(anonymous namespace)::")))
s = s.substr(LiteralStringRef("(anonymous namespace)::").size());
free(demangled);
} else
s = i->first;
#else
s = i->first;
if (StringRef(s).startsWith(LiteralStringRef("class `anonymous namespace'::")))
s = s.substr(LiteralStringRef("class `anonymous namespace'::").size());
else if (StringRef(s).startsWith(LiteralStringRef("class ")))
s = s.substr(LiteralStringRef("class ").size());
else if (StringRef(s).startsWith(LiteralStringRef("struct ")))
s = s.substr(LiteralStringRef("struct ").size());
#endif
typeNames.push_back( std::make_pair(s, i->first) );
}
std::sort(typeNames.begin(), typeNames.end());
for(int i=0; i<typeNames.size(); i++) {
const char* n = typeNames[i].second;
auto& f = allocInstr[n];
if(f.maxAllocated > 10000)
TraceEvent("AllocInstrument").detail("CurrentAlloc", f.allocCount-f.deallocCount)
.detail("Name", typeNames[i].first.c_str());
}
std::unordered_map<uint32_t, BackTraceAccount> traceCounts;
size_t memSampleSize;
memSample_entered = true;
{
ThreadSpinLockHolder holder( memLock );
traceCounts = backTraceLookup;
memSampleSize = memSample.size();
}
memSample_entered = false;
TraceEvent("MemSampleSummary")
.detail("InverseByteSampleRatio", SAMPLE_BYTES)
.detail("MemorySamples", memSampleSize)
.detail("BackTraces", traceCounts.size());
for( auto i = traceCounts.begin(); i != traceCounts.end(); ++i ) {
char buf[1024];
std::vector<void *> *frames = i->second.backTrace;
std::string backTraceStr;
#if defined(_WIN32)
for (int j = 1; j < frames->size(); j++) {
_snprintf(buf, 1024, "%p ", frames->at(j));
backTraceStr += buf;
}
#else
backTraceStr = format_backtrace(&(*frames)[0], frames->size());
#endif
TraceEvent("MemSample")
.detail("Count", (int64_t)i->second.count)
.detail("TotalSize", i->second.totalSize)
.detail("SampleCount", i->second.sampleCount)
.detail("Hash", format("%lld", i->first))
.detail("Bt", backTraceStr);
}
TraceEvent("MemSample")
.detail("Count", traceCounts.size())
.detail("TotalSize", traceCounts.size() * ((int)(sizeof(uint32_t) + sizeof(size_t) + sizeof(size_t))))
.detail("SampleCount", traceCounts.size())
.detail("Hash", "backTraces")
.detail("Bt", "na");
TraceEvent("MemSample")
.detail("Count", memSampleSize)
.detail("TotalSize", memSampleSize * ((int)(sizeof(void*) + sizeof(uint32_t) + sizeof(size_t))))
.detail("SapmleCount", memSampleSize)
.detail("Hash", "memSamples")
.detail("Bt", "na");
TRACEALLOCATOR(16);
TRACEALLOCATOR(32);
TRACEALLOCATOR(64);
TRACEALLOCATOR(128);
TRACEALLOCATOR(256);
TRACEALLOCATOR(512);
TRACEALLOCATOR(1024);
TRACEALLOCATOR(2048);
TRACEALLOCATOR(4096);
TRACEALLOCATOR(8192);
g_traceBatch.dump();
#endif
criticalError(FDB_EXIT_NO_MEM, "OutOfMemory", "Out of memory");
}
}; // namespace platform
extern "C" void criticalError(int exitCode, const char *type, const char *message) {
// Be careful! This function may be called asynchronously from a thread or in other weird conditions
fprintf(stderr, "ERROR: %s\n", message);
if (g_network && !g_network->isSimulated())
{
TraceEvent ev(SevError, type);
ev.detail("Message", message);
}
flushAndExit(exitCode);
}
extern void flushTraceFileVoid();
extern "C" void flushAndExit(int exitCode) {
flushTraceFileVoid();
fflush(stdout);
closeTraceFile();
#ifdef _WIN32
// This function is documented as being asynchronous, but we suspect it might actually be synchronous in the
// case that it is passed a handle to the current process. If not, then there may be cases where we escalate
// to the crashAndDie call below.
TerminateProcess(GetCurrentProcess(), exitCode);
#else
_exit(exitCode);
#endif
// should never reach here, but you never know
crashAndDie();
}
#ifdef __unixish__
#include <dlfcn.h>
#ifdef __linux__
#include <link.h>
#endif
struct ImageInfo {
void *offset;
std::string symbolFileName;
ImageInfo() : offset(NULL), symbolFileName("") {}
};
ImageInfo getImageInfo(const void *symbol) {
Dl_info info;
ImageInfo imageInfo;
#ifdef __linux__
link_map *linkMap;
int res = dladdr1(symbol, &info, (void**)&linkMap, RTLD_DL_LINKMAP);
#else
int res = dladdr(symbol, &info);
#endif
if(res != 0) {
std::string imageFile = basename(info.dli_fname);
// If we have a client library that doesn't end in the appropriate extension, we will get the wrong debug suffix. This should only be a cosmetic problem, though.
#ifdef __linux__
imageInfo.offset = (void*)linkMap->l_addr;
if(imageFile.length() >= 3 && imageFile.rfind(".so") == imageFile.length()-3) {
#else
imageInfo.offset = info.dli_fbase;
if(imageFile.length() >= 6 && imageFile.rfind(".dylib") == imageFile.length()-6) {
#endif
imageInfo.symbolFileName = imageFile + "-debug";
}
else {
imageInfo.symbolFileName = imageFile + ".debug";
}
}
else {
imageInfo.symbolFileName = "unknown";
}
return imageInfo;
}
ImageInfo getCachedImageInfo() {
// The use of "getCachedImageInfo" is arbitrary and was a best guess at a good way to get the image of the
// most likely candidate for the "real" flow library or binary
static ImageInfo info = getImageInfo((const void *)&getCachedImageInfo);
return info;
}
#include <execinfo.h>
namespace platform {
void* getImageOffset() {
return getCachedImageInfo().offset;
}
size_t raw_backtrace(void** addresses, int maxStackDepth) {
#if !defined(__APPLE__)
// absl::GetStackTrace doesn't have an implementation for MacOS.
return absl::GetStackTrace(addresses, maxStackDepth, 0);
#else
return backtrace(addresses, maxStackDepth);
#endif
}
std::string format_backtrace(void **addresses, int numAddresses) {
ImageInfo const& imageInfo = getCachedImageInfo();
#ifdef __APPLE__
std::string s = format("atos -o %s -arch x86_64 -l %p", imageInfo.symbolFileName.c_str(), imageInfo.offset);
for(int i = 1; i < numAddresses; i++) {
s += format(" %p", addresses[i]);
}
#else
std::string s = format("addr2line -e %s -p -C -f -i", imageInfo.symbolFileName.c_str());
for(int i = 1; i < numAddresses; i++) {
s += format(" %p", (char*)addresses[i]-(char*)imageInfo.offset);
}
#endif
return s;
}
std::string get_backtrace() {
void *addresses[50];
size_t size = raw_backtrace(addresses, 50);
return format_backtrace(addresses, size);
}
}; // namespace platform
#else
namespace platform {
std::string get_backtrace() { return std::string(); }
std::string format_backtrace(void **addresses, int numAddresses) { return std::string(); }
void* getImageOffset() { return NULL; }
}; // namespace platform
#endif
bool isLibraryLoaded(const char* lib_path) {
#if !defined(__linux__) && !defined(__APPLE__) && !defined(_WIN32)
#error Port me!
#endif
void* dlobj = NULL;
#if defined(__unixish__)
dlobj = dlopen( lib_path, RTLD_NOLOAD | RTLD_LAZY );
#else
dlobj = GetModuleHandle( lib_path );
#endif
return dlobj != NULL;
}
void* loadLibrary(const char* lib_path) {
#if !defined(__linux__) && !defined(__APPLE__) && !defined(_WIN32)
#error Port me!
#endif
void* dlobj = NULL;
#if defined(__unixish__)
dlobj = dlopen( lib_path, RTLD_LAZY | RTLD_LOCAL );
if(dlobj == NULL) {
TraceEvent(SevWarn, "LoadLibraryFailed").detail("Library", lib_path).detail("Error", dlerror());
}
#else
dlobj = LoadLibrary( lib_path );
if(dlobj == NULL) {
TraceEvent(SevWarn, "LoadLibraryFailed").detail("Library", lib_path).GetLastError();
}
#endif
return dlobj;
}
void* loadFunction(void* lib, const char* func_name) {
void* dlfcn = NULL;
#if defined(__unixish__)
dlfcn = dlsym( lib, func_name );
if(dlfcn == NULL) {
TraceEvent(SevWarn, "LoadFunctionFailed").detail("Function", func_name).detail("Error", dlerror());
}
#else
dlfcn = GetProcAddress( (HINSTANCE)lib, func_name );
if(dlfcn == NULL) {
TraceEvent(SevWarn, "LoadFunctionFailed").detail("Function", func_name).GetLastError();
}
#endif
return dlfcn;
}
void platformInit() {
#ifdef WIN32
_set_FMA3_enable(0); // Workaround for VS 2013 code generation bug. See https://connect.microsoft.com/VisualStudio/feedback/details/811093/visual-studio-2013-rtm-c-x64-code-generation-bug-for-avx2-instructions
#endif
#ifdef __linux__
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0) {
criticalError(FDB_EXIT_ERROR, "MonotonicTimeUnavailable", "clock_gettime(CLOCK_MONOTONIC, ...) returned an error. Check your kernel and glibc versions.");
}
#endif
}
void crashHandler(int sig) {
#ifdef __linux__
// Pretty much all of this handler is risking undefined behavior and hangs,
// but the idea is that we're about to crash anyway...
std::string backtrace = platform::get_backtrace();
bool error = (sig != SIGUSR2);
fflush(stdout);
TraceEvent(error ? SevError : SevInfo, error ? "Crash" : "ProcessTerminated")
.detail("Signal", sig)
.detail("Name", strsignal(sig))
.detail("Trace", backtrace);
flushTraceFileVoid();
fprintf(stderr, "SIGNAL: %s (%d)\n", strsignal(sig), sig);
fprintf(stderr, "Trace: %s\n", backtrace.c_str());
_exit(128 + sig);
#else
// No crash handler for other platforms!
#endif
}
void registerCrashHandler() {
#ifdef __linux__
// For these otherwise fatal errors, attempt to log a trace of
// what was happening and then exit
struct sigaction action;
action.sa_handler = crashHandler;
sigfillset( &action.sa_mask );
action.sa_flags = 0;
sigaction(SIGILL, &action, NULL);
sigaction(SIGFPE, &action, NULL);
sigaction(SIGSEGV, &action, NULL);
sigaction(SIGBUS, &action, NULL);
sigaction(SIGUSR2, &action, NULL);
#else
// No crash handler for other platforms!
#endif
}
#ifdef __linux__
extern volatile void** net2backtraces;
extern volatile size_t net2backtraces_offset;
extern volatile size_t net2backtraces_max;
extern volatile bool net2backtraces_overflow;
extern volatile int net2backtraces_count;
extern volatile double net2liveness;
extern volatile thread_local int profilingEnabled;
extern void initProfiling();
volatile thread_local bool profileThread = false;
#endif
volatile thread_local int profilingEnabled = 1;
void setProfilingEnabled(int enabled) {
profilingEnabled = enabled;
}
void profileHandler(int sig) {
#ifdef __linux__
if (!profileThread || !profilingEnabled) {
return;
}
net2backtraces_count++;
if (!net2backtraces || net2backtraces_max - net2backtraces_offset < 50) {
net2backtraces_overflow = true;
return;
}
// We are casting away the volatile-ness of the backtrace array, but we believe that should be reasonably safe in the signal handler
ProfilingSample* ps = const_cast<ProfilingSample*>((volatile ProfilingSample*)(net2backtraces + net2backtraces_offset));
ps->timestamp = timer();
// SOMEDAY: should we limit the maximum number of frames from
// backtrace beyond just available space?
size_t size = backtrace(ps->frames, net2backtraces_max - net2backtraces_offset - 2);
ps->length = size;
net2backtraces_offset += size + 2;
#else
// No slow task profiling for other platforms!
#endif
}
void* checkThread(void *arg) {
#ifdef __linux__
pthread_t mainThread = *(pthread_t*)arg;
free(arg);
double lastValue = net2liveness;
double lastSignal = 0;
double logInterval = FLOW_KNOBS->SLOWTASK_PROFILING_INTERVAL;
while(true) {
threadSleep(FLOW_KNOBS->SLOWTASK_PROFILING_INTERVAL);
if(lastValue == net2liveness) {
double t = timer();
if(lastSignal == 0 || t - lastSignal >= logInterval) {
if(lastSignal > 0) {
logInterval = std::min(FLOW_KNOBS->SLOWTASK_PROFILING_MAX_LOG_INTERVAL, FLOW_KNOBS->SLOWTASK_PROFILING_LOG_BACKOFF * logInterval);
}
lastSignal = t;
pthread_kill(mainThread, SIGPROF);
}
}
else {
lastSignal = 0;
logInterval = FLOW_KNOBS->SLOWTASK_PROFILING_INTERVAL;
}
lastValue = net2liveness;
}
return NULL;
#else
// No slow task profiling for other platforms!
return NULL;
#endif
}
void setupSlowTaskProfiler() {
#ifdef __linux__
if(FLOW_KNOBS->SLOWTASK_PROFILING_INTERVAL > 0) {
TraceEvent("StartingSlowTaskProfilingThread").detail("Interval", FLOW_KNOBS->SLOWTASK_PROFILING_INTERVAL);
initProfiling();
profileThread = true;
struct sigaction action;
action.sa_handler = profileHandler;
sigfillset(&action.sa_mask);
action.sa_flags = 0;
sigaction(SIGPROF, &action, NULL);
// Start a thread which will use signals to log stacks on long events
pthread_t *mainThread = (pthread_t*)malloc(sizeof(pthread_t));
*mainThread = pthread_self();
startThread(&checkThread, (void*)mainThread);
}
#else
// No slow task profiling for other platforms!
#endif
}
#ifdef __linux__
// There's no good place to put this, so it's here.
// Ubuntu's packaging of libstdc++_pic offers different symbols than libstdc++. Go figure.
// Notably, it's missing a definition of std::istream::ignore(long), which causes compilation errors
// in the bindings. Thus, we provide weak versions of their definitions, so that if the
// linked-against libstdc++ is missing their definitions, we'll be able to use the provided
// ignore(long, int) version.
#include <istream>
namespace std {
typedef basic_istream<char, std::char_traits<char>> char_basic_istream;
template <>
char_basic_istream& __attribute__((weak)) char_basic_istream::ignore(streamsize count) {
return ignore(count, std::char_traits<char>::eof());
}
typedef basic_istream<wchar_t, std::char_traits<wchar_t>> wchar_basic_istream;
template <>
wchar_basic_istream& __attribute__((weak)) wchar_basic_istream::ignore(streamsize count) {
return ignore(count, std::char_traits<wchar_t>::eof());
}
}
#endif
// UnitTest for getMemoryInfo
#ifdef __linux__
TEST_CASE("/flow/Platform/getMemoryInfo") {
printf("UnitTest flow/Platform/getMemoryInfo 1\n");
std::string memString =
"MemTotal: 24733228 kB\n"
"MemFree: 2077580 kB\n"
"Buffers: 266940 kB\n"
"Cached: 16798292 kB\n"
"SwapCached: 210240 kB\n"
"Active: 12447724 kB\n"
"Inactive: 9175508 kB\n"
"Active(anon): 3458596 kB\n"
"Inactive(anon): 1102948 kB\n"
"Active(file): 8989128 kB\n"
"Inactive(file): 8072560 kB\n"
"Unevictable: 0 kB\n"
"Mlocked: 0 kB\n"
"SwapTotal: 25165820 kB\n"
"SwapFree: 23680228 kB\n"
"Dirty: 200 kB\n"
"Writeback: 0 kB\n"
"AnonPages: 4415148 kB\n"
"Mapped: 62804 kB\n"
"Shmem: 3544 kB\n"
"Slab: 620144 kB\n"
"SReclaimable: 556640 kB\n"
"SUnreclaim: 63504 kB\n"
"KernelStack: 5240 kB\n"
"PageTables: 47292 kB\n"
"NFS_Unstable: 0 kB\n"
"Bounce: 0 kB\n"
"WritebackTmp: 0 kB\n"
"CommitLimit: 37532432 kB\n"
"Committed_AS: 8603484 kB\n"
"VmallocTotal: 34359738367 kB\n"
"VmallocUsed: 410576 kB\n";
std::map<StringRef, int64_t> request = {
{ LiteralStringRef("MemTotal:"), 0 },
{ LiteralStringRef("MemFree:"), 0 },
{ LiteralStringRef("MemAvailable:"), 0 },
{ LiteralStringRef("Buffers:"), 0 },
{ LiteralStringRef("Cached:"), 0 },
{ LiteralStringRef("SwapTotal:"), 0 },
{ LiteralStringRef("SwapFree:"), 0 },
};
std::stringstream memInfoStream(memString);
getMemoryInfo(request, memInfoStream);
ASSERT(request[LiteralStringRef("MemTotal:")] == 24733228);
ASSERT(request[LiteralStringRef("MemFree:")] == 2077580);
ASSERT(request[LiteralStringRef("MemAvailable:")] == 0);
ASSERT(request[LiteralStringRef("Buffers:")] == 266940);
ASSERT(request[LiteralStringRef("Cached:")] == 16798292);
ASSERT(request[LiteralStringRef("SwapTotal:")] == 25165820);
ASSERT(request[LiteralStringRef("SwapFree:")] == 23680228);
for (auto & item : request) {
printf("%s:%ld\n", item.first.toString().c_str(), item.second );
}
printf("UnitTest flow/Platform/getMemoryInfo 2\n");
std::string memString1 =
"Slab: 192816 kB\n"
"SReclaimable: 158404 kB\n"
"SUnreclaim: 34412 kB\n"
"KernelStack: 7152 kB\n"
"PageTables: 45284 kB\n"
"NFS_Unstable: 0 kB\n"
"Bounce: 0 kB\n"
"WritebackTmp: 0 kB\n"
"MemTotal: 31856496 kB\n"
"MemFree: 25492716 kB\n"
"MemAvailable: 28470756 kB\n"
"Buffers: 313644 kB\n"
"Cached: 2956444 kB\n"
"SwapCached: 0 kB\n"
"Active: 3708432 kB\n"
"Inactive: 2163752 kB\n"
"Active(anon): 2604524 kB\n"
"Inactive(anon): 199896 kB\n"
"Active(file): 1103908 kB\n"
"Inactive(file): 1963856 kB\n"
"Unevictable: 0 kB\n"
"Mlocked: 0 kB\n"
"SwapTotal: 0 kB\n"
"SwapFree: 0 kB\n"
"Dirty: 0 kB\n"
"Writeback: 0 kB\n"
"AnonPages: 2602108 kB\n"
"Mapped: 361088 kB\n"
"Shmem: 202332 kB\n"
"CommitLimit: 15928248 kB\n"
"Committed_AS: 5556756 kB\n"
"VmallocTotal: 34359738367 kB\n"
"VmallocUsed: 427528 kB\n"
"VmallocChunk: 34359283752 kB\n"
"HardwareCorrupted: 0 kB\n"
"AnonHugePages: 1275904 kB\n";
std::stringstream memInfoStream1(memString1);
getMemoryInfo(request, memInfoStream1);
ASSERT(request[LiteralStringRef("MemTotal:")] == 31856496);
ASSERT(request[LiteralStringRef("MemFree:")] == 25492716);
ASSERT(request[LiteralStringRef("MemAvailable:")] == 28470756);
ASSERT(request[LiteralStringRef("Buffers:")] == 313644);
ASSERT(request[LiteralStringRef("Cached:")] == 2956444);
ASSERT(request[LiteralStringRef("SwapTotal:")] == 0);
ASSERT(request[LiteralStringRef("SwapFree:")] == 0);
for (auto & item : request) {
printf("%s:%ld\n", item.first.toString().c_str(), item.second);
}
return Void();
}
#endif
int testPathFunction(const char *name, std::function<std::string(std::string)> fun, std::string a, ErrorOr<std::string> b) {
ErrorOr<std::string> result;
try { result = fun(a); } catch(Error &e) { result = e; }
bool r = result.isError() == b.isError() && (b.isError() || b.get() == result.get()) && (!b.isError() || b.getError().code() == result.getError().code());
printf("%s: %s('%s') -> %s", r ? "PASS" : "FAIL", name, a.c_str(), result.isError() ? result.getError().what() : format("'%s'", result.get().c_str()).c_str());
if(!r) {
printf(" *ERROR* expected %s", b.isError() ? b.getError().what() : format("'%s'", b.get().c_str()).c_str());
}
printf("\n");
return r ? 0 : 1;
}
int testPathFunction2(const char *name, std::function<std::string(std::string, bool, bool)> fun, std::string a, bool resolveLinks, bool mustExist, ErrorOr<std::string> b) {
// Skip tests with resolveLinks set to false as the implementation is not complete
if(resolveLinks == false) {
printf("SKIPPED: %s('%s', %d, %d)\n", name, a.c_str(), resolveLinks, mustExist);
return 0;
}
ErrorOr<std::string> result;
try { result = fun(a, resolveLinks, mustExist); } catch(Error &e) { result = e; }
bool r = result.isError() == b.isError() && (b.isError() || b.get() == result.get()) && (!b.isError() || b.getError().code() == result.getError().code());
printf("%s: %s('%s', %d, %d) -> %s", r ? "PASS" : "FAIL", name, a.c_str(), resolveLinks, mustExist, result.isError() ? result.getError().what() : format("'%s'", result.get().c_str()).c_str());
if(!r) {
printf(" *ERROR* expected %s", b.isError() ? b.getError().what() : format("'%s'", b.get().c_str()).c_str());
}
printf("\n");
return r ? 0 : 1;
}
TEST_CASE("/flow/Platform/directoryOps") {
int errors = 0;
errors += testPathFunction("popPath", popPath, "a", "");
errors += testPathFunction("popPath", popPath, "a/", "");
errors += testPathFunction("popPath", popPath, "a///", "");
errors += testPathFunction("popPath", popPath, "a///..", "a/");
errors += testPathFunction("popPath", popPath, "a///../", "a/");
errors += testPathFunction("popPath", popPath, "a///..//", "a/");
errors += testPathFunction("popPath", popPath, "/", "/");
errors += testPathFunction("popPath", popPath, "/a", "/");
errors += testPathFunction("popPath", popPath, "/a/b", "/a/");
errors += testPathFunction("popPath", popPath, "/a/b/", "/a/");
errors += testPathFunction("popPath", popPath, "/a/b/..", "/a/b/");
errors += testPathFunction("popPath", popPath, "/a/b///..//", "/a/b/");
errors += testPathFunction("cleanPath", cleanPath, "/", "/");
errors += testPathFunction("cleanPath", cleanPath, "///.///", "/");
errors += testPathFunction("cleanPath", cleanPath, "/a/b/.././../c/./././////./d/..//", "/c");
errors += testPathFunction("cleanPath", cleanPath, "a/b/.././../c/./././////./d/..//", "c");
errors += testPathFunction("cleanPath", cleanPath, "..", "..");
errors += testPathFunction("cleanPath", cleanPath, "../.././", "../..");
errors += testPathFunction("cleanPath", cleanPath, "../a/b/..//", "../a");
errors += testPathFunction("cleanPath", cleanPath, "a/b/.././../c/./././////./d/..//..", ".");
errors += testPathFunction("cleanPath", cleanPath, "/..", "/");
errors += testPathFunction("cleanPath", cleanPath, "/../foo/bar///", "/foo/bar");
errors += testPathFunction("cleanPath", cleanPath, "/a/b/../.././../", "/");
errors += testPathFunction("cleanPath", cleanPath, ".", ".");
// Creating this directory in backups avoids some sanity checks
platform::createDirectory("simfdb/backups/one/two/three");
std::string cwd = platform::getWorkingDirectory();
#ifndef _WIN32
// Create some symlinks and test resolution (or non-resolution) of them
ASSERT(symlink("one/two", "simfdb/backups/four") == 0);
ASSERT(symlink("../backups/four", "simfdb/backups/five") == 0);
errors += testPathFunction2("abspath", abspath, "simfdb/backups/four/../two", true, true, joinPath(cwd, "simfdb/backups/one/two"));
errors += testPathFunction2("abspath", abspath, "simfdb/backups/five/../two", true, true, joinPath(cwd, "simfdb/backups/one/two"));
errors += testPathFunction2("abspath", abspath, "simfdb/backups/five/../two", true, false, joinPath(cwd, "simfdb/backups/one/two"));
errors += testPathFunction2("abspath", abspath, "simfdb/backups/five/../three", true, true, platform_error());
errors += testPathFunction2("abspath", abspath, "simfdb/backups/five/../three", true, false, joinPath(cwd, "simfdb/backups/one/three"));
errors += testPathFunction2("abspath", abspath, "simfdb/backups/five/../three/../four", true, false, joinPath(cwd, "simfdb/backups/one/four"));
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/four/../two", true, true, joinPath(cwd, "simfdb/backups/one/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/five/../two", true, true, joinPath(cwd, "simfdb/backups/one/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/five/../two", true, false, joinPath(cwd, "simfdb/backups/one/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/five/../three", true, true, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/five/../three", true, false, joinPath(cwd, "simfdb/backups/one/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/five/../three/../four", true, false, joinPath(cwd, "simfdb/backups/one/"));
#endif
errors += testPathFunction2("abspath", abspath, "/", false, false, "/");
errors += testPathFunction2("abspath", abspath, "/foo//bar//baz/.././", false, false, "/foo/bar");
errors += testPathFunction2("abspath", abspath, "/", true, false, "/");
errors += testPathFunction2("abspath", abspath, "", true, false, platform_error());
errors += testPathFunction2("abspath", abspath, ".", true, false, cwd);
errors += testPathFunction2("abspath", abspath, "/a", true, false, "/a");
errors += testPathFunction2("abspath", abspath, "one/two/three/four", false, true, platform_error());
errors += testPathFunction2("abspath", abspath, "one/two/three/four", false, false, joinPath(cwd, "one/two/three/four"));
errors += testPathFunction2("abspath", abspath, "one/two/three/./four", false, false, joinPath(cwd, "one/two/three/four"));
errors += testPathFunction2("abspath", abspath, "one/two/three/./four", false, false, joinPath(cwd, "one/two/three/four"));
errors += testPathFunction2("abspath", abspath, "one/two/three/./four/..", false, false, joinPath(cwd, "one/two/three"));
errors += testPathFunction2("abspath", abspath, "one/./two/../three/./four", false, false, joinPath(cwd, "one/three/four"));
errors += testPathFunction2("abspath", abspath, "one/./two/../three/./four", false, true, platform_error());
errors += testPathFunction2("abspath", abspath, "one/two/three/./four", false, true, platform_error());
errors += testPathFunction2("abspath", abspath, "simfdb/backups/one/two/three", false, true, joinPath(cwd, "simfdb/backups/one/two/three"));
errors += testPathFunction2("abspath", abspath, "simfdb/backups/one/two/threefoo", false, true, platform_error());
errors += testPathFunction2("abspath", abspath, "simfdb/backups/four/../two", false, false, joinPath(cwd, "simfdb/backups/two"));
errors += testPathFunction2("abspath", abspath, "simfdb/backups/four/../two", false, true, platform_error());
errors += testPathFunction2("abspath", abspath, "simfdb/backups/five/../two", false, true, platform_error());
errors += testPathFunction2("abspath", abspath, "simfdb/backups/five/../two", false, false, joinPath(cwd, "simfdb/backups/two"));
errors += testPathFunction2("abspath", abspath, "foo/./../foo2/./bar//", false, false, joinPath(cwd, "foo2/bar"));
errors += testPathFunction2("abspath", abspath, "foo/./../foo2/./bar//", false, true, platform_error());
errors += testPathFunction2("abspath", abspath, "foo/./../foo2/./bar//", true, false, joinPath(cwd, "foo2/bar"));
errors += testPathFunction2("abspath", abspath, "foo/./../foo2/./bar//", true, true, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "", true, false, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "/", true, false, "/");
errors += testPathFunction2("parentDirectory", parentDirectory, "/a", true, false, "/");
errors += testPathFunction2("parentDirectory", parentDirectory, ".", false, false, cleanPath(joinPath(cwd, "..")) + "/");
errors += testPathFunction2("parentDirectory", parentDirectory, "./foo", false, false, cleanPath(cwd) + "/");
errors += testPathFunction2("parentDirectory", parentDirectory, "one/two/three/four", false, true, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "one/two/three/four", false, false, joinPath(cwd, "one/two/three/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "one/two/three/./four", false, false, joinPath(cwd, "one/two/three/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "one/two/three/./four/..", false, false, joinPath(cwd, "one/two/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "one/./two/../three/./four", false, false, joinPath(cwd, "one/three/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "one/./two/../three/./four", false, true, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "one/two/three/./four", false, true, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/one/two/three", false, true, joinPath(cwd, "simfdb/backups/one/two/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/one/two/threefoo", false, true, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/four/../two", false, false, joinPath(cwd, "simfdb/backups/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/four/../two", false, true, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/five/../two", false, true, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "simfdb/backups/five/../two", false, false, joinPath(cwd, "simfdb/backups/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "foo/./../foo2/./bar//", false, false, joinPath(cwd, "foo2/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "foo/./../foo2/./bar//", false, true, platform_error());
errors += testPathFunction2("parentDirectory", parentDirectory, "foo/./../foo2/./bar//", true, false, joinPath(cwd, "foo2/"));
errors += testPathFunction2("parentDirectory", parentDirectory, "foo/./../foo2/./bar//", true, true, platform_error());
printf("%d errors.\n", errors);
ASSERT(errors == 0);
return Void();
}
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