Group::~Group() { LifeStatus lifeStatus = getLifeStatus(); if (OXT_UNLIKELY(lifeStatus == ALIVE)) { P_BUG("You must call Group::shutdown() before destroying a Group."); } assert(lifeStatus == SHUT_DOWN); assert(!detachedProcessesCheckerActive); }
void BombAirPlane::draw() { if(getLifeStatus()) { glPushMatrix(); glTranslated(currentPosition.X(), currentPosition.Y(), currentPosition.Z()); glRotatef(angleWithX, 0.0, 1.0, 0.0); model.display(); glPopMatrix(); } explosion.draw(); }
string Process::inspect() const { assert(getLifeStatus() != DEAD); stringstream result; result << "(pid=" << pid; GroupPtr group = getGroup(); if (group != NULL) { // This Process hasn't been attached to a Group yet. result << ", group=" << group->name; } result << ")"; return result.str(); }
void Group::onSessionInitiateFailure(const ProcessPtr &process, Session *session) { vector<Callback> actions; TRACE_POINT(); // Standard resource management boilerplate stuff... PoolPtr pool = getPool(); boost::unique_lock<boost::mutex> lock(pool->syncher); assert(process->isAlive()); assert(isAlive() || getLifeStatus() == SHUTTING_DOWN); UPDATE_TRACE_POINT(); P_DEBUG("Could not initiate a session with process " << process->inspect() << ", detaching from pool if possible"); if (!pool->detachProcessUnlocked(process, actions)) { P_DEBUG("Process was already detached"); } pool->fullVerifyInvariants(); lock.unlock(); runAllActions(actions); }
void Group::onSessionClose(const ProcessPtr &process, Session *session) { TRACE_POINT(); // Standard resource management boilerplate stuff... PoolPtr pool = getPool(); boost::unique_lock<boost::mutex> lock(pool->syncher); assert(process->isAlive()); assert(isAlive() || getLifeStatus() == SHUTTING_DOWN); P_TRACE(2, "Session closed for process " << process->inspect()); verifyInvariants(); UPDATE_TRACE_POINT(); /* Update statistics. */ process->sessionClosed(session); assert(process->getLifeStatus() == Process::ALIVE); assert(process->enabled == Process::ENABLED || process->enabled == Process::DISABLING || process->enabled == Process::DETACHED); if (process->enabled == Process::ENABLED) { pqueue.decrease(process->pqHandle, process->busyness()); } /* This group now has a process that's guaranteed to be not * totally busy. */ assert(!process->isTotallyBusy()); bool detachingBecauseOfMaxRequests = false; bool detachingBecauseCapacityNeeded = false; bool shouldDetach = ( detachingBecauseOfMaxRequests = ( options.maxRequests > 0 && process->processed >= options.maxRequests )) || ( detachingBecauseCapacityNeeded = ( process->sessions == 0 && getWaitlist.empty() && ( !pool->getWaitlist.empty() || anotherGroupIsWaitingForCapacity() ) ) ); bool shouldDisable = process->enabled == Process::DISABLING && process->sessions == 0 && enabledCount > 0; if (shouldDetach || shouldDisable) { vector<Callback> actions; if (shouldDetach) { if (detachingBecauseCapacityNeeded) { /* Someone might be trying to get() a session for a different * group that couldn't be spawned because of lack of pool capacity. * If this group isn't under sufficiently load (as apparent by the * checked conditions) then now's a good time to detach * this process or group in order to free capacity. */ P_DEBUG("Process " << process->inspect() << " is no longer totally " "busy; detaching it in order to make room in the pool"); } else { /* This process has processed its maximum number of requests, * so we detach it. */ P_DEBUG("Process " << process->inspect() << " has reached its maximum number of requests (" << options.maxRequests << "); detaching it"); } pool->detachProcessUnlocked(process, actions); } else { removeProcessFromList(process, disablingProcesses); addProcessToList(process, disabledProcesses); removeFromDisableWaitlist(process, DR_SUCCESS, actions); maybeInitiateOobw(process); } pool->fullVerifyInvariants(); lock.unlock(); runAllActions(actions); } else { // This could change process->enabled. maybeInitiateOobw(process); if (!getWaitlist.empty() && process->enabled == Process::ENABLED) { /* If there are clients on this group waiting for a process to * become available then call them now. */ UPDATE_TRACE_POINT(); // Already calls verifyInvariants(). assignSessionsToGetWaitersQuickly(lock); } } }
SuperGroupPtr Process::getSuperGroup() const { assert(getLifeStatus() != DEAD); return getGroup()->getSuperGroup(); }
void Group::detachedProcessesCheckerMain(GroupPtr self) { TRACE_POINT(); PoolPtr pool = getPool(); Pool::DebugSupportPtr debug = pool->debugSupport; if (debug != NULL && debug->detachedProcessesChecker) { debug->debugger->send("About to start detached processes checker"); debug->messages->recv("Proceed with starting detached processes checker"); } boost::unique_lock<boost::mutex> lock(pool->syncher); while (true) { assert(detachedProcessesCheckerActive); if (getLifeStatus() == SHUT_DOWN || this_thread::interruption_requested()) { UPDATE_TRACE_POINT(); P_DEBUG("Stopping detached processes checker"); detachedProcessesCheckerActive = false; break; } UPDATE_TRACE_POINT(); if (!detachedProcesses.empty()) { P_TRACE(2, "Checking whether any of the " << detachedProcesses.size() << " detached processes have exited..."); ProcessList::iterator it = detachedProcesses.begin(); ProcessList::iterator end = detachedProcesses.end(); while (it != end) { const ProcessPtr process = *it; switch (process->getLifeStatus()) { case Process::ALIVE: if (process->canTriggerShutdown()) { P_DEBUG("Detached process " << process->inspect() << " has 0 active sessions now. Triggering shutdown."); process->triggerShutdown(); assert(process->getLifeStatus() == Process::SHUTDOWN_TRIGGERED); } it++; break; case Process::SHUTDOWN_TRIGGERED: if (process->canCleanup()) { P_DEBUG("Detached process " << process->inspect() << " has shut down. Cleaning up associated resources."); process->cleanup(); assert(process->getLifeStatus() == Process::DEAD); it++; removeProcessFromList(process, detachedProcesses); } else if (process->shutdownTimeoutExpired()) { P_WARN("Detached process " << process->inspect() << " didn't shut down within " PROCESS_SHUTDOWN_TIMEOUT_DISPLAY ". Forcefully killing it with SIGKILL."); kill(process->pid, SIGKILL); it++; } else { it++; } break; default: P_BUG("Unknown 'lifeStatus' state " << (int) process->getLifeStatus()); } } } UPDATE_TRACE_POINT(); if (detachedProcesses.empty()) { UPDATE_TRACE_POINT(); P_DEBUG("Stopping detached processes checker"); detachedProcessesCheckerActive = false; vector<Callback> actions; if (shutdownCanFinish()) { UPDATE_TRACE_POINT(); finishShutdown(actions); } verifyInvariants(); verifyExpensiveInvariants(); lock.unlock(); UPDATE_TRACE_POINT(); runAllActions(actions); break; } else { UPDATE_TRACE_POINT(); verifyInvariants(); verifyExpensiveInvariants(); } // Not all processes can be shut down yet. Sleep for a while unless // someone wakes us up. UPDATE_TRACE_POINT(); detachedProcessesCheckerCond.timed_wait(lock, posix_time::milliseconds(100)); } }