![]() ![]() |
![]() |
File: [Pegasus] / pegasus / src / Pegasus / Common / Monitor.cpp
(download)
Revision: 1.32.2.3, Tue Oct 29 22:24:47 2002 UTC (21 years, 8 months ago) by mday Branch: mday-2-0-patches Changes since 1.32.2.2: +7 -7 lines *** empty log message *** |
//%///////////////////////////////////////////////////////////////////////////// // // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM, // The Open Group, Tivoli Systems // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // //============================================================================== // // Author: Mike Brasher (mbrasher@bmc.com) // // Modified By: // //%///////////////////////////////////////////////////////////////////////////// #include "Monitor.h" #ifdef PEGASUS_OS_TYPE_WINDOWS # if defined(FD_SETSIZE) && FD_SETSIZE != 1024 # error "FD_SETSIZE was not set to 1024 prior to the last inclusion \ of <winsock.h>. It may have been indirectly included (e.g., by including \ <windows.h>). Finthe inclusion of that header which is visible to this \ compilation unit and #define FD_SETZIE to 1024 prior to that inclusion; \ otherwise, less than 64 clients (the default) will be able to connect to the \ CIMOM. PLEASE DO NOT SUPPRESS THIS WARNING; PLEASE FIX THE PROBLEM." # endif # define FD_SETSIZE 1024 # include <windows.h> #else # include <sys/types.h> # include <sys/socket.h> # include <sys/time.h> # include <netinet/in.h> # include <netdb.h> # include <arpa/inet.h> # include <unistd.h> #endif PEGASUS_USING_STD; PEGASUS_NAMESPACE_BEGIN static AtomicInt _connections = 0; static struct timeval create_time = {0, 1}; static struct timeval destroy_time = {15, 0}; static struct timeval deadlock_time = {0, 0}; //////////////////////////////////////////////////////////////////////////////// // // MonitorRep // //////////////////////////////////////////////////////////////////////////////// struct MonitorRep { fd_set rd_fd_set; fd_set wr_fd_set; fd_set ex_fd_set; fd_set active_rd_fd_set; fd_set active_wr_fd_set; fd_set active_ex_fd_set; }; //////////////////////////////////////////////////////////////////////////////// // // Monitor // //////////////////////////////////////////////////////////////////////////////// Monitor::Monitor() : _async(false) { Socket::initializeInterface(); _rep = 0; _entries.reserveCapacity(32); int i = 0; for( ; i < 32; i++ ) { _MonitorEntry entry(0, 0, 0); _entries.append(entry); } } Monitor::Monitor(Boolean async) : _async(async) { Socket::initializeInterface(); _rep = 0; _entries.reserveCapacity(32); int i = 0; for( ; i < 32; i++ ) { _MonitorEntry entry(0, 0, 0); _entries.append(entry); } if( _async == true ) { _thread_pool = new ThreadPool(0, "Monitor", 1, 0, create_time, destroy_time, deadlock_time); } else _thread_pool = 0; } Monitor::~Monitor() { Tracer::trace(TRC_HTTP, Tracer::LEVEL4, "deregistering with module controller"); Tracer::trace(TRC_HTTP, Tracer::LEVEL4, "deleting rep"); Tracer::trace(TRC_HTTP, Tracer::LEVEL4, "uninitializing interface"); Socket::uninitializeInterface(); Tracer::trace(TRC_HTTP, Tracer::LEVEL4, "returning from monitor destructor"); if(_async == true) delete _thread_pool; } int Monitor::kill_idle_threads() { static struct timeval now, last; gettimeofday(&now, NULL); int dead_threads = 0; if( now.tv_sec - last.tv_sec > 300 ) { PEGASUS_STD(cout) << "Monitor Thread Pool currently has " << _thread_pool->running_count() + _thread_pool->pool_count() << " Threads." << PEGASUS_STD(endl); gettimeofday(&last, NULL); try { dead_threads = _thread_pool->kill_dead_threads(); } catch(IPCException& ) { } } return dead_threads; } Boolean Monitor::run(Uint32 milliseconds) { Boolean handled_events = false; int i = 0; struct timeval tv = {0,1}; fd_set fdread; FD_ZERO(&fdread); for( int indx = 0; indx < (int)_entries.size(); indx++) { if(_entries[indx]._status.value() == _MonitorEntry::IDLE) { FD_SET(_entries[indx].socket, &fdread); } } int events = select(FD_SETSIZE, &fdread, NULL, NULL, &tv); #ifdef PEGASUS_OS_TYPE_WINDOWS if(events && events != SOCKET_ERROR ) #else if(events && events != -1 ) #endif { for( int indx = 0; indx < (int)_entries.size(); indx++) { if(FD_ISSET(_entries[indx].socket, &fdread)) { MessageQueue *q = MessageQueue::lookup(_entries[indx].queueId); if(q == 0) { PEGASUS_STD(cout) << "Monitor:: found an empty connection slot" << PEGASUS_STD(endl); try { _entries[indx]._status = _MonitorEntry::EMPTY; } catch(...) { } return true; } try { if(_entries[indx]._type == Monitor::CONNECTION) { static_cast<HTTPConnection *>(q)->_entry_index = indx; if(static_cast<HTTPConnection *>(q)->_dying.value() > 0 ) { _entries[indx]._status = _MonitorEntry::DYING; MessageQueue & o = static_cast<HTTPConnection *>(q)->get_owner(); Message* message= new CloseConnectionMessage(_entries[indx].socket); message->dest = o.getQueueId(); o.enqueue(message); return true; } _entries[indx]._status = _MonitorEntry::BUSY; _thread_pool->allocate_and_awaken((void *)q, _dispatch); } else { int events = 0; events |= SocketMessage::READ; Message *msg = new SocketMessage(_entries[indx].socket, events); _entries[indx]._status = _MonitorEntry::BUSY; q->enqueue(msg); _entries[indx]._status = _MonitorEntry::IDLE; return true; } } catch(...) { } handled_events = true; } } } return(handled_events); } int Monitor::solicitSocketMessages( Sint32 socket, Uint32 events, Uint32 queueId, int type) { PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solictSocketMessage"); int index = -1; for(index = 0; index < (int)_entries.size(); index++) { try { if(_entries[index]._status.value() == _MonitorEntry::EMPTY) { _entries[index].socket = socket; _entries[index].queueId = queueId; _entries[index]._type = type; _entries[index]._status = _MonitorEntry::IDLE; return index; } } catch(...) { } } PEG_METHOD_EXIT(); return index; } void Monitor::unsolicitSocketMessages(Sint32 socket) { PEG_METHOD_ENTER(TRC_HTTP, "Monitor::unsolicitSocketMessages"); for(int index = 0; index < (int)_entries.size(); index++) { if(_entries[index].socket == socket) { _entries[index]._status = _MonitorEntry::EMPTY; } } PEG_METHOD_EXIT(); if( _async == true ) PEGASUS_STD(cout) << "Monitor:: running " << _thread_pool->running_count() << " idle " << _thread_pool->pool_count() << PEGASUS_STD(endl); } PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL Monitor::_dispatch(void *parm) { HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(parm); dst->run(1); if( dst->_monitor->_entries.size() > (Uint32)dst->_entry_index ) dst->_monitor->_entries[dst->_entry_index]._status = _MonitorEntry::IDLE; return 0; } PEGASUS_NAMESPACE_END
No CVS admin address has been configured |
Powered by ViewCVS 0.9.2 |