//-------------------------------------------------
void ofThread::waitForThread(bool callStopThread, long milliseconds){
if(thread.isRunning()){
threadBeingWaitedFor = true;
// tell thread to stop
if(callStopThread){
stopThread();
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - Signaled to stop.";
}
// wait for the thread to finish
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - waiting to stop";
if(isCurrentThread()){
ofLogWarning("ofThread") << "- name: " << getThreadName() << " - waitForThread should only be called from outside the this ofThread.";
return;
}
if (INFINITE_JOIN_TIMEOUT == milliseconds){
thread.join();
}else{
// Wait for "joinWaitMillis" milliseconds for thread to finish
if(!thread.tryJoin(milliseconds)){
ofLogError("ofThread") << "- name: " << getThreadName() << " - Unable to completely waitForThread.";
}
}
}
}
bool ServerThread::execute()
{
bool bRv(true);
SHAREDPTR::shared_ptr<IFileDescriptorPattern> fp;
m_pError= m_pConnect->accept();
if(!m_pError->hasError())
{
fp= m_pConnect->getDescriptor();
m_pStarterPool->setNewClient(fp);
}
if(m_pError->fail())
{
string msg;
ostringstream decl;
decl << getThreadName();
decl << "@" << m_pConnect->getHostAddress();
decl << "@" << m_pConnect->getPortAddress();
m_pError->addMessage("ServerThread", "accept", decl.str());
msg= m_pError->getDescription();
if(m_pError->hasError())
{
cerr << glob::addPrefix("### ALERT: ", msg) << endl;
LOG(LOG_ALERT, msg);
bRv= false;
}else
{
cout << glob::addPrefix("### WARNING: ", msg) << endl;
TIMELOG(LOG_WARNING, getThreadName() +
"@" + m_pConnect->getHostAddress(), msg);
}
}
return bRv;
}
//-------------------------------------------------
void ofThread::unlock(){
mutex.unlock();
if(isCurrentThread()){
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - ofThread unlocked its own mutex.";
} else {
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - External thread unlocked the ofThread mutex.";
}
}
bool
GenericSchedulerThread::abortThreadedTask(bool keepOldestRender)
{
if ( !isRunning() ) {
return false;
}
ThreadStateEnum state = getThreadState();
bool shouldRequestAbort = state != eThreadStateAborted && state != eThreadStateIdle;
if ( keepOldestRender && !shouldRequestAbort ) {
return false;
}
{
QMutexLocker l(&_imp->abortRequestedMutex);
// We are already aborting
if (_imp->abortRequested > 0 && keepOldestRender) {
return false;
}
#ifdef TRACE_GENERIC_SCHEDULER_THREAD
qDebug() << QThread::currentThread() << ": Aborting task on" << getThreadName().c_str();
#endif
if (shouldRequestAbort) {
++_imp->abortRequested;
}
}
onAbortRequested(keepOldestRender);
return true;
}
void ServiceContextMongoDTest::setUp() {
Client::initThread(getThreadName());
auto const serviceContext = getServiceContext();
auto logicalClock = stdx::make_unique<LogicalClock>(serviceContext);
LogicalClock::set(serviceContext, std::move(logicalClock));
if (!serviceContext->getGlobalStorageEngine()) {
// When using the "ephemeralForTest" storage engine, it is fine for the temporary directory
// to go away after the global storage engine is initialized.
unittest::TempDir tempDir("service_context_d_test_fixture");
storageGlobalParams.dbpath = tempDir.path();
storageGlobalParams.engine = "ephemeralForTest";
storageGlobalParams.engineSetByUser = true;
checked_cast<ServiceContextMongoD*>(serviceContext)->createLockFile();
serviceContext->initializeGlobalStorageEngine();
serviceContext->setOpObserver(stdx::make_unique<OpObserverNoop>());
}
// Set up UUID Catalog observer. This is necessary because the Collection destructor contains an
// invariant to ensure the UUID corresponding to that Collection object is no longer associated
// with that Collection object in the UUIDCatalog. UUIDs may be registered in the UUIDCatalog
// directly in certain code paths, but they can only be removed from the UUIDCatalog via a
// UUIDCatalogObserver. It is therefore necessary to install the observer to ensure the
// invariant in the Collection destructor is not triggered.
auto observerRegistry = stdx::make_unique<OpObserverRegistry>();
observerRegistry->addObserver(stdx::make_unique<UUIDCatalogObserver>());
serviceContext->setOpObserver(std::unique_ptr<OpObserver>(observerRegistry.release()));
}
bool
GenericSchedulerThread::startTask(const ThreadStartArgsPtr& inArgs)
{
{
QMutexLocker quitLocker(&_imp->mustQuitMutex);
if (!_imp->startingThreadAllowed || _imp->mustQuit) {
return false;
}
}
{
QMutexLocker k1(&_imp->enqueuedTasksMutex);
QMutexLocker k2(&_imp->abortRequestedMutex);
#ifdef TRACE_GENERIC_SCHEDULER_THREAD
qDebug() << QThread::currentThread() << ": Requesting task on" << getThreadName().c_str() << ", is thread aborted?" << (bool)(_imp->abortRequested > 0);
#endif
if (_imp->abortRequested > 0) {
_imp->queuedTaskWhileProcessingAbort.push_back(inArgs);
} else {
_imp->enqueuedTasks.push_back(inArgs);
}
}
if ( !isRunning() ) {
start();
} else {
///Wake up the thread with a start request
QMutexLocker locker(&_imp->startRequestsMutex);
++_imp->startRequests;
_imp->startRequestsCond.wakeOne();
}
return true;
}
string getDistLockId() {
string s = distLockIds.get();
if (s.empty()) {
stringstream ss;
ss << getDistLockProcess() << ":" << getThreadName() << ":" << rand();
s = ss.str();
distLockIds.set(s);
}
return s;
}
KeyAnalysisThread::KeyAnalysisThread(SingleAudioFileForAnalysis* _fileToAnalyze, AudioFormatManager& _audioFormatManager)
: Thread("Key Analysis Thread" + _fileToAnalyze->getFileName()),
fileToAnalyze(_fileToAnalyze)
//audioFormatManager(_audioFormatManager)
{
audioFormatReader = _audioFormatManager.createReaderFor(_fileToAnalyze->getFileToBeAnalyzed());
DBG("Creating thread: " << getThreadName());
interval = Random::getSystemRandom().nextInt(50) + 8;
startThread();
}
//-------------------------------------------------
void ofThread::startThread(bool mutexBlocks){
if(thread.isRunning()){
ofLogWarning("ofThread") << "- name: " << getThreadName() << " - Cannot start, thread already running.";
return;
}
_threadRunning = true;
_mutexBlocks = mutexBlocks;
thread.start(*this);
}
void throw_error( const char* format, ... ){
char buf[2048] = {0};
va_list ap;
va_start(ap, format);
vsprintf(buf, format, ap);
lockMutex();
if ( use_syslog ){
syslog(LOG_USER|LOG_ERR, "%s", buf );
}else{
if ( errno )
printf("%s %s: error type = %d, errno = %d(%s), error = %s\n",
getThreadName(), getCurrentTime(), LOG_ERR, errno, strerror(errno), buf );
else
printf("%s %s: error type = %d, error = %s\n", getThreadName(), getCurrentTime(), LOG_ERR, buf );
}
unlockMutex();
//vsyslog(LOG_USER|err, format, ap );
va_end(ap);
Exception ex(buf);
throw ex;
}
//-------------------------------------------------
void ofThread::startThread(bool mutexBlocks){
std::unique_lock<std::mutex> lck(mutex);
if(threadRunning || !threadDone){
ofLogWarning("ofThread") << "- name: " << getThreadName() << " - Cannot start, thread already running.";
return;
}
threadDone = false;
threadRunning = true;
this->mutexBlocks = mutexBlocks;
thread = std::thread(std::bind(&ofThread::run,this));
}
void Logger::log(LogLevel lev, const std::string &text)
{
if (m_silenced_levels[lev])
return;
const std::string thread_name = getThreadName();
const std::string label = getLevelLabel(lev);
const std::string timestamp = getTimestamp();
std::ostringstream os(std::ios_base::binary);
os << timestamp << ": " << label << "[" << thread_name << "]: " << text;
logToOutputs(lev, os.str(), timestamp, thread_name, text);
}
vector<string> getMyAddrs() {
vector<string> out;
ifaddrs * addrs;
if (!serverGlobalParams.bind_ip.empty()) {
boost::split(out, serverGlobalParams.bind_ip, boost::is_any_of(", "));
return out;
}
int status = getifaddrs(&addrs);
massert(13469, "getifaddrs failure: " + errnoWithDescription(errno), status == 0);
// based on example code from linux getifaddrs manpage
for (ifaddrs * addr = addrs; addr != NULL; addr = addr->ifa_next) {
if ( addr->ifa_addr == NULL ) continue;
int family = addr->ifa_addr->sa_family;
char host[NI_MAXHOST];
if (family == AF_INET || family == AF_INET6) {
status = getnameinfo(addr->ifa_addr,
(family == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6)),
host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
if ( status != 0 ) {
freeifaddrs( addrs );
addrs = NULL;
msgasserted( 13470, string("getnameinfo() failed: ") + gai_strerror(status) );
}
out.push_back(host);
}
}
freeifaddrs( addrs );
addrs = NULL;
if (logger::globalLogDomain()->shouldLog(logger::LogSeverity::Debug(1))) {
LogstreamBuilder builder(logger::globalLogDomain(),
getThreadName(),
logger::LogSeverity::Debug(1));
builder << "getMyAddrs():";
for (vector<string>::const_iterator it=out.begin(), end=out.end(); it!=end; ++it) {
builder << " [" << *it << ']';
}
builder << endl;
}
return out;
}
//-------------------------------------------------
void ofThread::run(){
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - Started Thread.";
#ifdef TARGET_ANDROID
JNIEnv * env;
jint attachResult = ofGetJavaVMPtr()->AttachCurrentThread(&env,NULL);
#endif
// user function
// should loop endlessly.
threadedFunction();
_threadRunning = false;
#if !defined(TARGET_WIN32) && !defined(TARGET_ANDROID)
// FIXME: this won't be needed once we update POCO https://github.com/pocoproject/poco/issues/79
if(!threadBeingWaitedFor){ //if threadedFunction() ended and the thread is not being waited for, detach it before exiting.
pthread_detach(pthread_self());
}
#endif
#ifdef TARGET_ANDROID
attachResult = ofGetJavaVMPtr()->DetachCurrentThread();
#endif
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - Thread Finished.";
}
//-------------------------------------------------
bool ofThread::lock(){
if(_mutexBlocks){
if(isCurrentThread()){
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - ofThread waiting for its own mutex to be unlocked.";
}else{
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - External thread waiting for ofThread mutex to be unlocked";
}
mutex.lock();
}else{
if(!mutex.tryLock()){
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - Mutex is already locked, tryLock failed.";
return false;
}
}
if(isCurrentThread()){
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - ofThread locked its own mutex.";
}else{
ofLogVerbose("ofThread") << "- name: " << getThreadName() << " - External thread locked the ofThread mutex.";
}
return true;
}
void log( const char* format, ... ){
if ( debug_off )
return;
char buf[2048] = {0};
va_list ap;
va_start(ap, format);
vsprintf(buf, format, ap);
lockMutex();
if ( use_syslog )
syslog(LOG_USER|LOG_INFO, "%s", buf );
else
printf("%s %s: %s\n", getThreadName(), getCurrentTime(), buf );
unlockMutex();
//vsyslog(LOG_USER|err, format, ap );
va_end(ap);
}
bool
GenericSchedulerThread::quitThread(bool allowRestarts)
{
if ( !isRunning() ) {
return false;
}
// Disallow temporarily any thread to request a new render so that we do not end up starting the thread again
// just after the abort
{
QMutexLocker k(&_imp->mustQuitMutex);
// We already called quitThread
if (_imp->mustQuit || !_imp->lastQuitThreadAllowedRestart) {
return true;
}
_imp->mustQuit = true;
_imp->startingThreadAllowed = false;
_imp->lastQuitThreadAllowedRestart = allowRestarts;
}
if (getThreadState() == eThreadStateActive) {
abortThreadedTask();
}
// Clear any task enqueued and push a fake request
{
QMutexLocker k(&_imp->enqueuedTasksMutex);
_imp->enqueuedTasks.clear();
boost::shared_ptr<GenericThreadStartArgs> stubArgs( new GenericThreadStartArgs(true) );
_imp->enqueuedTasks.push_back(stubArgs);
}
// Wake-up the thread with a fake request
{
QMutexLocker l3(&_imp->startRequestsMutex);
++_imp->startRequests;
_imp->startRequestsCond.wakeOne();
}
#ifdef TRACE_GENERIC_SCHEDULER_THREAD
qDebug() << QThread::currentThread() << ": Termination request on " << getThreadName().c_str();
#endif
onQuitRequested(allowRestarts);
return true;
}
vector<string> getAllIPs(const string& iporhost) {
addrinfo* addrs = NULL;
addrinfo hints;
memset(&hints, 0, sizeof(addrinfo));
hints.ai_socktype = SOCK_STREAM;
hints.ai_family = (IPv6Enabled() ? AF_UNSPEC : AF_INET);
static string portNum = BSONObjBuilder::numStr(serverGlobalParams.port);
vector<string> out;
int ret = getaddrinfo(iporhost.c_str(), portNum.c_str(), &hints, &addrs);
if ( ret ) {
warning() << "getaddrinfo(\"" << iporhost << "\") failed: " << gai_strerror(ret) << endl;
return out;
}
for (addrinfo* addr = addrs; addr != NULL; addr = addr->ai_next) {
int family = addr->ai_family;
char host[NI_MAXHOST];
if (family == AF_INET || family == AF_INET6) {
int status = getnameinfo(addr->ai_addr, addr->ai_addrlen, host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
massert(13472, string("getnameinfo() failed: ") + gai_strerror(status), status == 0);
out.push_back(host);
}
}
freeaddrinfo(addrs);
if (logger::globalLogDomain()->shouldLog(logger::LogSeverity::Debug(1))) {
LogstreamBuilder builder(logger::globalLogDomain(),
getThreadName(),
logger::LogSeverity::Debug(1));
builder << "getallIPs(\"" << iporhost << "\"):";
for (vector<string>::const_iterator it=out.begin(), end=out.end(); it!=end; ++it) {
builder << " [" << *it << ']';
}
builder << endl;
}
return out;
}
void ThreadStatus::logToQueryThreadLog(QueryThreadLog & thread_log)
{
QueryThreadLogElement elem;
elem.event_time = time(nullptr);
elem.query_start_time = query_start_time;
elem.query_duration_ms = (getCurrentTimeNanoseconds() - query_start_time_nanoseconds) / 1000000U;
elem.read_rows = progress_in.rows.load(std::memory_order_relaxed);
elem.read_bytes = progress_in.bytes.load(std::memory_order_relaxed);
elem.written_rows = progress_out.rows.load(std::memory_order_relaxed);
elem.written_bytes = progress_out.bytes.load(std::memory_order_relaxed);
elem.memory_usage = memory_tracker.get();
elem.peak_memory_usage = memory_tracker.getPeak();
elem.thread_name = getThreadName();
elem.thread_number = thread_number;
elem.os_thread_id = os_thread_id;
if (thread_group)
{
{
std::lock_guard lock(thread_group->mutex);
elem.master_thread_number = thread_group->master_thread_number;
elem.master_os_thread_id = thread_group->master_thread_os_id;
elem.query = thread_group->query;
}
}
if (query_context)
{
elem.client_info = query_context->getClientInfo();
if (query_context->getSettingsRef().log_profile_events.value != 0)
{
/// NOTE: Here we are in the same thread, so we can make memcpy()
elem.profile_counters = std::make_shared<ProfileEvents::Counters>(performance_counters.getPartiallyAtomicSnapshot());
}
}
thread_log.add(elem);
}
static __attribute__((no_instrument_function)) void
trace ( const char *state, void *this_fn, void *call_site )
{
unsigned long now = getOffsetMsec();
const char *p = getProcName();
const char *t = getThreadName();
if ( firsttime ) {
setup();
if ( fp != NULL ) {
fprintf(fp,"!:state:process:thread:mSecTime:this_fn:call_site\n");
}
}
if ( fp != NULL ) {
fprintf(fp,"@:%s:%s:%s"
":%lu:%08lx:%08lx\n",
state,p,t,
now,(unsigned long)this_fn,(unsigned long)call_site);
fflush(fp);
}
}
void GlobalInfo::Functions::print::call(JSContext* cx, JS::CallArgs args) {
logger::LogstreamBuilder builder(jsPrintLogDomain, getThreadName(), logger::LogSeverity::Log());
std::ostream& ss = builder.stream();
bool first = true;
for (size_t i = 0; i < args.length(); i++) {
if (first)
first = false;
else
ss << " ";
if (args.get(i).isNullOrUndefined()) {
// failed to get object to convert
ss << "[unknown type]";
continue;
}
JSStringWrapper jsstr(cx, JS::ToString(cx, args.get(i)));
ss << jsstr.toStringData();
}
ss << std::endl;
args.rval().setUndefined();
}
//-------------------------------------------------
void ofThread::startThread(bool mutexBlocks, bool verbose){
ofLogWarning("ofThread") << "- name: " << getThreadName() << " - Calling startThread with verbose is deprecated.";
startThread(mutexBlocks);
}
ThreadClient::ThreadClient(ServiceContext* serviceContext)
: ThreadClient(getThreadName(), serviceContext, nullptr) {}
//-------------------------------------------------
void ofThread::threadedFunction(){
ofLogWarning("ofThread") << "- name: " << getThreadName() << " - Override ofThread::threadedFunction() in your ofThread subclass.";
}
void printThreadPinning()
{
pid_t pid = getpid();
#ifndef _WIN32
char dirname[1024];
sprintf(dirname, "/proc/%d/task", (int) pid);
DIR* dp = opendir(dirname);
if (dp)
{
dirent* ent;
fprintf(STD_OUT, "%12s", "");
for (int i = 0;i < get_number_of_cpu_cores();i++)
{
fprintf(STD_OUT, " %2d", i);
}
fprintf(STD_OUT, "\n");
while ((ent = readdir(dp)) != NULL)
{
pid_t tid = atoi(ent->d_name);
if (tid != 0)
{
fprintf(STD_OUT, "Thread %5d", tid);
cpu_set_t threadmask;
sched_getaffinity(tid, sizeof(threadmask), &threadmask);
for (int i = 0;i < get_number_of_cpu_cores();i++)
{
if (CPU_ISSET(i, &threadmask))
{
fprintf(STD_OUT, " X");
}
else
{
fprintf(STD_OUT, " .");
}
}
fprintf(STD_OUT, " - ");
const char* name = getThreadName(tid);
fprintf(STD_OUT, "%s", name);
if (CPU_COUNT(&threadmask) == 1)
{
for (int i = 0;i < get_number_of_cpu_cores();i++)
{
if (CPU_ISSET(i, &threadmask)) fprintf(STD_OUT, " - Pinned to core %d", i);
}
}
char filename[1024];
sprintf(filename, "/proc/%d/task/%d/stat", (int) pid, (int) tid);
FILE* fp = fopen(filename, "r");
if (fp != NULL)
{
char buffer[1024];
if (fgets(buffer, 1023, fp) == NULL) break;
int count = 0;
for (unsigned int i = 0;i < strlen(buffer);i++)
{
if (buffer[i] == ' ')
{
if (++count == 13)
{
int time;
sscanf(&buffer[i + 1], "%d ", &time);
fprintf(STD_OUT, " - Time: %d", time);
break;
}
}
}
fclose(fp);
}
fprintf(STD_OUT, "\n");
}
}
closedir(dp);
}
#endif
}
void Logstream::flush(Tee *t) {
const size_t MAX_LOG_LINE = 1024 * 10;
// this ensures things are sane
if ( doneSetup == 1717 ) {
string msg = ss.str();
string threadName = getThreadName();
const char * type = logLevelToString(logLevel);
size_t msgLen = msg.size();
if ( msgLen > MAX_LOG_LINE )
msgLen = MAX_LOG_LINE;
const int spaceNeeded = (int)( msgLen + 64 /* for extra info */ + threadName.size());
int bufSize = 128;
while ( bufSize < spaceNeeded )
bufSize += 128;
BufBuilder b(bufSize);
char* dateStr = b.grow(24);
curTimeString(dateStr);
dateStr[23] = ' '; // change null char to space
if (!threadName.empty()) {
b.appendChar( '[' );
b.appendStr( threadName , false );
b.appendChar( ']' );
b.appendChar( ' ' );
}
for ( int i=0; i<indent; i++ )
b.appendChar( '\t' );
if ( type[0] ) {
b.appendStr( type , false );
b.appendStr( ": " , false );
}
if ( msg.size() > MAX_LOG_LINE ) {
stringstream sss;
sss << "warning: log line attempted (" << msg.size() / 1024 << "k) over max size(" << MAX_LOG_LINE / 1024 << "k)";
sss << ", printing beginning and end ... ";
b.appendStr( sss.str(), false );
const char * xx = msg.c_str();
b.appendBuf( xx , MAX_LOG_LINE / 3 );
b.appendStr( " .......... ", false );
b.appendStr( xx + msg.size() - ( MAX_LOG_LINE / 3 ) );
}
else {
b.appendStr( msg );
}
string out( b.buf() , b.len() - 1);
verify( b.len() < spaceNeeded );
scoped_lock lk(mutex);
if( t ) t->write(logLevel,out);
if ( globalTees ) {
for ( unsigned i=0; i<globalTees->size(); i++ )
(*globalTees)[i]->write(logLevel,out);
}
#if defined(_WIN32)
int fd = fileno( logfile );
if ( _isatty( fd ) ) {
fflush( logfile );
writeUtf8ToWindowsConsole( out.data(), out.size() );
}
#else
if ( isSyslog ) {
syslog( logLevelToSysLogLevel(logLevel) , "%s" , out.data() );
}
#endif
else if ( fwrite( out.data(), out.size(), 1, logfile ) ) {
fflush(logfile);
}
else {
int x = errno;
cout << "Failed to write to logfile: " << errnoWithDescription(x) << ": " << out << endl;
}
#ifdef POSIX_FADV_DONTNEED
// This only applies to pages that have already been flushed
RARELY posix_fadvise(fileno(logfile), 0, 0, POSIX_FADV_DONTNEED);
#endif
}
_init();
}
StatusWith<DistLockManager::ScopedDistLock> ReplSetDistLockManager::lock(
StringData name, StringData whyMessage, milliseconds waitFor, milliseconds lockTryInterval) {
Timer timer(_serviceContext->getTickSource());
Timer msgTimer(_serviceContext->getTickSource());
while (waitFor <= milliseconds::zero() || milliseconds(timer.millis()) < waitFor) {
OID lockSessionID = OID::gen();
string who = str::stream() << _processID << ":" << getThreadName();
auto lockExpiration = _lockExpiration;
MONGO_FAIL_POINT_BLOCK(setDistLockTimeout, customTimeout) {
const BSONObj& data = customTimeout.getData();
lockExpiration = stdx::chrono::milliseconds(data["timeoutMs"].numberInt());
}
LOG(1) << "trying to acquire new distributed lock for " << name
<< " ( lock timeout : " << durationCount<Milliseconds>(lockExpiration)
<< " ms, ping interval : " << durationCount<Milliseconds>(_pingInterval)
<< " ms, process : " << _processID << " )"
<< " with lockSessionID: " << lockSessionID << ", why: " << whyMessage;
auto lockResult =
_catalog->grabLock(name, lockSessionID, who, _processID, Date_t::now(), whyMessage);
auto status = lockResult.getStatus();
if (status.isOK()) {
// Lock is acquired since findAndModify was able to successfully modify
// the lock document.
LOG(0) << "distributed lock '" << name << "' acquired, ts : " << lockSessionID;
return ScopedDistLock(lockSessionID, this);
}
if (status != ErrorCodes::LockStateChangeFailed) {
// An error occurred but the write might have actually been applied on the
// other side. Schedule an unlock to clean it up just in case.
queueUnlock(lockSessionID);
return status;
}
// Get info from current lock and check if we can overtake it.
auto getLockStatusResult = _catalog->getLockByName(name);
const auto& getLockStatus = getLockStatusResult.getStatus();
if (!getLockStatusResult.isOK() && getLockStatus != ErrorCodes::LockNotFound) {
return getLockStatus;
}
// Note: Only attempt to overtake locks that actually exists. If lock was not
// found, use the normal grab lock path to acquire it.
if (getLockStatusResult.isOK()) {
auto currentLock = getLockStatusResult.getValue();
auto canOvertakeResult = canOvertakeLock(currentLock, lockExpiration);
if (!canOvertakeResult.isOK()) {
return canOvertakeResult.getStatus();
}
if (canOvertakeResult.getValue()) {
auto overtakeResult = _catalog->overtakeLock(name,
lockSessionID,
currentLock.getLockID(),
who,
_processID,
Date_t::now(),
whyMessage);
const auto& overtakeStatus = overtakeResult.getStatus();
if (overtakeResult.isOK()) {
// Lock is acquired since findAndModify was able to successfully modify
// the lock document.
LOG(0) << "lock '" << name << "' successfully forced";
LOG(0) << "distributed lock '" << name << "' acquired, ts : " << lockSessionID;
return ScopedDistLock(lockSessionID, this);
}
if (overtakeStatus != ErrorCodes::LockStateChangeFailed) {
// An error occurred but the write might have actually been applied on the
// other side. Schedule an unlock to clean it up just in case.
queueUnlock(lockSessionID);
return overtakeStatus;
}
}
}
LOG(1) << "distributed lock '" << name << "' was not acquired.";
if (waitFor == milliseconds::zero()) {
break;
}
// Periodically message for debugging reasons
if (msgTimer.seconds() > 10) {
LOG(0) << "waited " << timer.seconds() << "s for distributed lock " << name << " for "
<< whyMessage;
msgTimer.reset();
}
milliseconds timeRemaining =
std::max(milliseconds::zero(), waitFor - milliseconds(timer.millis()));
sleepFor(std::min(lockTryInterval, timeRemaining));
}
return {ErrorCodes::LockBusy, str::stream() << "timed out waiting for " << name};
}
string ServerThread::getName() const
{
return getThreadName();
}
Optional<std::string> getCurrentThreadName() {
return getThreadName(std::this_thread::get_id());
}
void
GenericSchedulerThread::run()
{
for (;; ) {
// Get the args to do the work
ThreadStartArgsPtr args;
TaskQueueBehaviorEnum behavior = tasksQueueBehaviour();
{
QMutexLocker k(&_imp->enqueuedTasksMutex);
switch (behavior) {
case eTaskQueueBehaviorProcessInOrder: {
if ( !_imp->enqueuedTasks.empty() ) {
args = _imp->enqueuedTasks.front();
_imp->enqueuedTasks.pop_front();
}
break;
}
case eTaskQueueBehaviorSkipToMostRecent: {
if ( !_imp->enqueuedTasks.empty() ) {
args = _imp->enqueuedTasks.back();
_imp->enqueuedTasks.clear();
}
break;
}
}
}
ThreadStateEnum state = eThreadStateActive;
{
_imp->setThreadState(eThreadStateActive);
Q_EMIT stateChanged( (int)state );
}
if ( args && !args->isNull() ) {
// Do the work!
state = threadLoopOnce(args);
}
// The implementation might call resolveState from threadLoopOnce. If not, it will return eThreadStateActive by default so make
// sure resolveState was called at least once
if (state == eThreadStateActive) {
// Returns eThreadStateActive if the thread was not aborted, otherwise returns eThreadStateAborted if aborted or eThreadStateStopped
// if we must stop
state = _imp->resolveState();
}
// Handle abort and termination requests
// If the thread has not been aborted, put it asleep
if (state == eThreadStateActive) {
state = eThreadStateIdle;
}
_imp->setThreadState(state);
Q_EMIT stateChanged( (int)state );
if (state == eThreadStateStopped) {
// The thread is now stopped
#ifdef TRACE_GENERIC_SCHEDULER_THREAD
qDebug() << getThreadName().c_str() << ": Quitting thread";
#endif
QMutexLocker k(&_imp->mustQuitMutex);
_imp->mustQuit = false;
_imp->mustQuitCond.wakeAll();
return;
}
// Reset the abort requested flag:
// If a thread A called abortThreadedTask() multiple times and the scheduler thread B was running in the meantime, it could very well
// stop and wait in the startRequestsCond
{
QMutexLocker tasksLocker(&_imp->enqueuedTasksMutex);
QMutexLocker k(&_imp->abortRequestedMutex);
if (state == eThreadStateAborted) {
// If the processing was aborted, clear task that were requested prior to the abort flag was passed, and insert the task that were posted
// after the abort was requested up until now
#ifdef TRACE_GENERIC_SCHEDULER_THREAD
qDebug() << getThreadName().c_str() << ": Thread going idle after being aborted. " << _imp->queuedTaskWhileProcessingAbort.size() << "tasks were pushed while abort being processed.";
#endif
if (behavior == eTaskQueueBehaviorProcessInOrder) {
_imp->enqueuedTasks.clear();
}
_imp->enqueuedTasks.insert( _imp->enqueuedTasks.end(), _imp->queuedTaskWhileProcessingAbort.begin(), _imp->queuedTaskWhileProcessingAbort.end() );
_imp->queuedTaskWhileProcessingAbort.clear();
} else {
#ifdef TRACE_GENERIC_SCHEDULER_THREAD
qDebug() << getThreadName().c_str() << ": Thread going idle normally.";
#endif
}
if (_imp->abortRequested > 0) {
_imp->abortRequested = 0;
_imp->abortRequestedCond.wakeAll();
}
}
{
QMutexLocker l(&_imp->startRequestsMutex);
while (_imp->startRequests <= 0) {
_imp->startRequestsCond.wait(&_imp->startRequestsMutex);
}
///We got the request
if (_imp->startRequests > 0) {
--_imp->startRequests;
}
#ifdef TRACE_GENERIC_SCHEDULER_THREAD
qDebug() << getThreadName().c_str() << ": Received start request, startRequest = " << _imp->startRequests;
#endif
}
} // for (;;)
} // run()
