(file) Return to HTTPAcceptor.cpp CVS log (file) (dir) Up to [Pegasus] / pegasus / src / Pegasus / Common

Diff for /pegasus/src/Pegasus/Common/HTTPAcceptor.cpp between version 1.48 and 1.59

version 1.48, 2004/05/12 14:32:54 version 1.59, 2005/02/14 19:54:15
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 //%2003////////////////////////////////////////////////////////////////////////  //%2005////////////////////////////////////////////////////////////////////////
 // //
 // Copyright (c) 2000, 2001, 2002  BMC Software, Hewlett-Packard Development  // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
 // Company, L. P., IBM Corp., The Open Group, Tivoli Systems.  // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L. P.; // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L. P.;
 // IBM Corp.; EMC Corporation, The Open Group. // IBM Corp.; EMC Corporation, The Open Group.
   // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
   // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
   // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
   // EMC Corporation; VERITAS Software Corporation; The Open Group.
 // //
 // Permission is hereby granted, free of charge, to any person obtaining a copy // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to // of this software and associated documentation files (the "Software"), to
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 //         Nag Boranna, Hewlett-Packard Company (nagaraja_boranna@hp.com) //         Nag Boranna, Hewlett-Packard Company (nagaraja_boranna@hp.com)
 //         Dave Rosckes (rosckes@us.ibm.com) //         Dave Rosckes (rosckes@us.ibm.com)
 //         Denise Eckstein (denise.eckstein@hp.com) //         Denise Eckstein (denise.eckstein@hp.com)
   //         Alagaraja Ramasubramanian (alags_raj@in.ibm.com) for Bug#1090
   //         Amit Arora, IBM (amita@in.ibm.com) for Bug#2541
   //         Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com)
   //         Sean Keenan, Hewlett-Packard Company (sean.keenan@hp.com)
 // //
 //%///////////////////////////////////////////////////////////////////////////// //%/////////////////////////////////////////////////////////////////////////////
  
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 PEGASUS_NAMESPACE_BEGIN PEGASUS_NAMESPACE_BEGIN
  
   static int MAX_CONNECTION_QUEUE_LENGTH = -1;
   
   
 //////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
 // //
 // HTTPAcceptorRep // HTTPAcceptorRep
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     struct sockaddr* address;     struct sockaddr* address;
  
 #if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM)  #if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) || defined(PEGASUS_OS_VMS)
    size_t address_size;    size_t address_size;
 #elif defined(PEGASUS_PLATFORM_AIX_RS_IBMCXX) || defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) || (defined(PEGASUS_PLATFORM_SOLARIS_SPARC_CC) && !defined(SUNOS_5_6)) #elif defined(PEGASUS_PLATFORM_AIX_RS_IBMCXX) || defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) || (defined(PEGASUS_PLATFORM_SOLARIS_SPARC_CC) && !defined(SUNOS_5_6))
    socklen_t address_size;    socklen_t address_size;
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                            MessageQueue* outputMessageQueue,                            MessageQueue* outputMessageQueue,
                            Boolean localConnection,                            Boolean localConnection,
                            Uint32 portNumber,                            Uint32 portNumber,
                            SSLContext * sslcontext)                             SSLContext * sslcontext,
                              Boolean exportConnection,
                              ReadWriteSem* sslContextObjectLock)
    : Base(PEGASUS_QUEUENAME_HTTPACCEPTOR),  // ATTN: Need unique names?    : Base(PEGASUS_QUEUENAME_HTTPACCEPTOR),  // ATTN: Need unique names?
      _monitor(monitor),      _monitor(monitor),
      _outputMessageQueue(outputMessageQueue),      _outputMessageQueue(outputMessageQueue),
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      _entry_index(-1),      _entry_index(-1),
      _localConnection(localConnection),      _localConnection(localConnection),
      _portNumber(portNumber),      _portNumber(portNumber),
      _sslcontext(sslcontext)       _sslcontext(sslcontext),
        _exportConnection(exportConnection),
        _sslContextObjectLock(sslContextObjectLock)
 { {
    Socket::initializeInterface();    Socket::initializeInterface();
   
      /*
           Platforms interpret the value of MAX_CONNECTION_QUEUE_LENGTH differently.  Some platforms interpret
           the value literally, while others multiply a fudge factor. When the server is under
           stress from multiple clients with multiple requests, toggling this number may prevent clients from
           being dropped.  Instead of hard coding the value, we allow an environment variable to be set which
           specifies a number greater than the maximum concurrent client connections possible.  If this environment
           var is not specified, then MAX_CONNECTION_QUEUE_LENGTH = 15.
      */
   
   //To engage runtime backlog queue length: uncomment the following block AND comment out the line MAX_CONNECTION_QUEUE_LENGTH = 15
   
   /*
      if(MAX_CONNECTION_QUEUE_LENGTH == -1){
   #ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM
   #pragma convert(37)
           const char* env = getenv("PEGASUS_MAX_BACKLOG_CONNECTION_QUEUE");
           EtoA(env);
   #pragma convert(0)
   #else
           const char* env = getenv("PEGASUS_MAX_BACKLOG_CONNECTION_QUEUE");
   #endif
           if(!env){
                   MAX_CONNECTION_QUEUE_LENGTH = 15;
           }else{
                   char *end = NULL;
                   MAX_CONNECTION_QUEUE_LENGTH = strtol(env, &end, 10);
                   if(*end)
                           MAX_CONNECTION_QUEUE_LENGTH = 15;
                   cout << " MAX_CONNECTION_QUEUE_LENGTH = " << MAX_CONNECTION_QUEUE_LENGTH << endl;
           }
      }
   */
      MAX_CONNECTION_QUEUE_LENGTH = 15;
   
 } }
  
 HTTPAcceptor::~HTTPAcceptor() HTTPAcceptor::~HTTPAcceptor()
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          CloseConnectionMessage* closeConnectionMessage          CloseConnectionMessage* closeConnectionMessage
             = (CloseConnectionMessage*)message;             = (CloseConnectionMessage*)message;
  
          _rep->_connection_mut.lock(pegasus_thread_self());           AutoMutex autoMut(_rep->_connection_mut);
  
          for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++)          for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++)
          {          {
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                break;                break;
             }             }
          }          }
          _rep->_connection_mut.unlock();  
          break;          break;
       }       }
  
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 // set the close-on-exec bit for this file handle. // set the close-on-exec bit for this file handle.
 // any unix that forks needs this bit set. // any unix that forks needs this bit set.
 #ifndef PEGASUS_PLATFORM_WIN32_IX86_MSVC  #if !defined PEGASUS_PLATFORM_WIN32_IX86_MSVC && !defined(PEGASUS_OS_VMS)
    int sock_flags;    int sock_flags;
  if( (sock_flags = fcntl(_rep->socket, F_GETFD, 0)) < 0)  if( (sock_flags = fcntl(_rep->socket, F_GETFD, 0)) < 0)
    {    {
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       throw BindFailedException(parms);       throw BindFailedException(parms);
    }    }
  
      //
      //  Change permissions on Linux local domain socket to allow writes by others.
      //
   #if defined(PEGASUS_LOCAL_DOMAIN_SOCKET) && defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU)
      if (_localConnection)
      {
        if (::chmod( PEGASUS_LOCAL_DOMAIN_SOCKET_PATH,
                     S_IRUSR | S_IWUSR | S_IXUSR |
                     S_IRGRP | S_IWGRP | S_IXGRP |
                     S_IROTH | S_IWOTH | S_IXOTH ) < 0 )
        {
          Socket::close(_rep->socket);
          delete _rep;
          _rep = 0;
          //l10n
          //throw BindFailedException("Failed to bind socket");
          MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_BIND_SOCKET",
                                  "Failed to bind socket");
          PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
                 "HTTPAcceptor::_bind: Failed to set domain socket permissions.");
          throw BindFailedException(parms);
        }
      }
   #endif
   
    // Set up listening on the given socket:    // Set up listening on the given socket:
  
    int const MAX_CONNECTION_QUEUE_LENGTH = 15;     //int const MAX_CONNECTION_QUEUE_LENGTH = 15;
  
    if (listen(_rep->socket, MAX_CONNECTION_QUEUE_LENGTH) < 0)    if (listen(_rep->socket, MAX_CONNECTION_QUEUE_LENGTH) < 0)
    {    {
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 { {
    Uint32 count = 0;    Uint32 count = 0;
  
    _rep->_connection_mut.lock(pegasus_thread_self());     AutoMutex autoMut(_rep->_connection_mut);
    if (_rep->connections.size() > 0)    if (_rep->connections.size() > 0)
    {    {
       HTTPConnection* connection = _rep->connections[0];       HTTPConnection* connection = _rep->connections[0];
       count = connection->getRequestCount();       count = connection->getRequestCount();
    }    }
    _rep->_connection_mut.unlock();  
    return count;    return count;
 } }
  
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    // For each connection created by this object:    // For each connection created by this object:
  
    _rep->_connection_mut.lock(pegasus_thread_self());     AutoMutex autoMut(_rep->_connection_mut);
    for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++)    for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++)
    {    {
       HTTPConnection* connection = _rep->connections[i];       HTTPConnection* connection = _rep->connections[i];
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    }    }
  
    _rep->connections.clear();    _rep->connections.clear();
    _rep->_connection_mut.unlock();  
 } }
  
 void HTTPAcceptor::_acceptConnection() void HTTPAcceptor::_acceptConnection()
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    // Accept the connection (populate the address):    // Accept the connection (populate the address):
  
    struct sockaddr* accept_address;    struct sockaddr* accept_address;
 #if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM)  #if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM) || defined(PEGASUS_OS_VMS)
    size_t address_size;    size_t address_size;
 #elif defined(PEGASUS_PLATFORM_AIX_RS_IBMCXX) || defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) || (defined(PEGASUS_OS_SOLARIS) && !defined(SUNOS_5_6)) #elif defined(PEGASUS_PLATFORM_AIX_RS_IBMCXX) || defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) || (defined(PEGASUS_OS_SOLARIS) && !defined(SUNOS_5_6))
    socklen_t address_size;    socklen_t address_size;
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    }    }
  
 // set the close on exec flag // set the close on exec flag
 #ifndef PEGASUS_PLATFORM_WIN32_IX86_MSVC  #if !defined PEGASUS_PLATFORM_WIN32_IX86_MSVC && !defined(PEGASUS_OS_VMS)
    int sock_flags;    int sock_flags;
  if( (sock_flags = fcntl(socket, F_GETFD, 0)) < 0)  if( (sock_flags = fcntl(socket, F_GETFD, 0)) < 0)
    {    {
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    // Create a new conection and add it to the connection list:    // Create a new conection and add it to the connection list:
  
    AutoPtr<MP_Socket> mp_socket(new MP_Socket(socket, _sslcontext));     AutoPtr<MP_Socket> mp_socket(new MP_Socket(socket, _sslcontext, _exportConnection));
   
      {
          ReadLock rlock(*_sslContextObjectLock);
   
    if (mp_socket->accept() < 0)    if (mp_socket->accept() < 0)
    {    {
        PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,        PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
                         "HTTPAcceptor: SSL_accept() failed");                         "HTTPAcceptor: SSL_accept() failed");
              mp_socket->close();
       return;       return;
    }    }
      }
  
    HTTPConnection* connection = new HTTPConnection(     HTTPConnection* connection = new HTTPConnection(_monitor, mp_socket,
       _monitor, mp_socket, this, static_cast<MessageQueue *>(_outputMessageQueue));         this, static_cast<MessageQueue *>(_outputMessageQueue), _exportConnection);
  
    // Solicit events on this new connection's socket:    // Solicit events on this new connection's socket:
    int index;    int index;
  
    if (-1 ==  (index = _monitor->solicitSocketMessages(    if (-1 ==  (index = _monitor->solicitSocketMessages(
           socket,            connection->getSocket(),
           SocketMessage::READ | SocketMessage::EXCEPTION,           SocketMessage::READ | SocketMessage::EXCEPTION,
           connection->getQueueId(), Monitor::CONNECTION)) )           connection->getQueueId(), Monitor::CONNECTION)) )
    {    {
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       return;       return;
    }    }
  
    mp_socket.release();  
   
    // Save the socket for cleanup later:    // Save the socket for cleanup later:
    connection->_entry_index = index;    connection->_entry_index = index;
    _rep->_connection_mut.lock(pegasus_thread_self());     AutoMutex autoMut(_rep->_connection_mut);
    _rep->connections.append(connection);    _rep->connections.append(connection);
    _rep->_connection_mut.unlock();  
 }  
   
 AsyncDQueue<pegasus_acceptor> pegasus_acceptor::acceptors(true, 0);  
   
 void pegasus_acceptor::close_all_acceptors(void)  
 {  
    try  
    {  
       pegasus_acceptor* temp = acceptors.remove_first();  
       while(temp)  
       {  
          delete temp;  
          temp = acceptors.remove_first();  
       }  
    }  
    catch(...)  
    {  
    }  
   
 }  
   
   
   
 pegasus_acceptor::pegasus_acceptor(monitor_2* monitor,  
                                    MessageQueue* outputMessageQueue,  
                                    Boolean localConnection,  
                                    Uint32 portNumber,  
                                    SSLContext* sslcontext)  
   : _monitor(monitor), _outputMessageQueue(outputMessageQueue),  
     _localConnection(localConnection), _portNumber(portNumber),  
     _sslcontext(sslcontext), connections(true, 0)  
 {  
   
      Socket::initializeInterface();  
      try {  
        acceptors.insert_first(this);  
      }  
      catch(...){  
      }  
   
 }  
   
 pegasus_acceptor::~pegasus_acceptor(void)  
 {  
    unbind();  
    Socket::uninitializeInterface();  
    try {  
      acceptors.remove(this);  
    }  
    catch(...){  
    }  
   
 }  
   
   
 void pegasus_acceptor::bind()  
 {  
   
   PEGASUS_SOCKLEN_SIZE addr_size;  
   struct sockaddr *addr;  
   struct sockaddr_in addr_in;  
 # ifdef PEGASUS_LOCAL_DOMAIN_SOCKET  
   struct sockaddr_un addr_un;  
 #endif  
   
   memset(&addr_in, 0, sizeof(addr_in));  
   addr_in.sin_addr.s_addr = INADDR_ANY;  
   addr_in.sin_family = AF_INET;  
   addr_in.sin_port = htons(_portNumber);  
   addr = (struct sockaddr*) &addr_in;  
   addr_size = sizeof(addr_in);  
   
   // first step: determine which kind of socket factory to initialize,  
   // then create the socket and bind it to an address  
   if(_localConnection == true){  
 #ifdef PEGASUS_LOCAL_DOMAIN_SOCKET  
     unix_socket_factory sf;  
     pegasus_socket temp(&sf);  
     _listener = temp;  
   
     memset(&addr_un, 0, sizeof(addr_un));  
     addr_un.sun_family = AF_UNIX;  
     strcpy(addr_un.sun_path, PEGASUS_LOCAL_DOMAIN_SOCKET_PATH);  
 #ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM  
     AtoE(addr_un.sun_path);  
 #endif  
     addr = (struct sockaddr*) &addr_un;  
     addr_size = sizeof(addr_un);  
     _listener.socket(AF_UNIX, SOCK_STREAM, 0);  
 #else  
     bsd_socket_factory sf;  
     pegasus_socket temp(&sf);  
     _listener = temp;  
     _listener.socket(AF_UNIX, SOCK_STREAM, 0);  
 #endif  
   }  
   else if( _sslcontext != 0 ) {  
 #ifdef PEGASUS_HAS_SSL  
     ssl_socket_factory sf;  
     pegasus_socket temp(&sf, _sslcontext);  
 #else  
     bsd_socket_factory sf;  
     pegasus_socket temp(&sf);  
 #endif  
     _listener = temp;  
     _listener.socket(PF_INET, SOCK_STREAM, 0);  
   }  
   else {  
     bsd_socket_factory sf;  
     pegasus_socket temp(&sf);  
     _listener = temp;  
     _listener.socket(PF_INET, SOCK_STREAM, 0);  
   }  
  
   _listener.bind((struct sockaddr*)addr, addr_size);  
   
   // second step: listen on the socket  
   
   _listener.listen(5);  
   
   // third step: add this listening socket to the monitor  
   
    _monitor->tickle();  
    _monitor->add_entry(_listener, LISTEN, this, this);  
 }  
   
   
 /** Unbind from the given port.  
  */  
 void pegasus_acceptor::unbind()  
 {  
   // remove the socket from the monitor  
   _monitor->remove_entry((Sint32)_listener);  
   
   // close the socket  
   _listener.close();  
 } }
  
   
       /** Close the connection socket.  
        */  
 void pegasus_acceptor::closeConnectionSocket()  
 {  
   unbind();  
 }  
   
   
       /** Reopen the connection socket.  
        */  
 void pegasus_acceptor::reopenConnectionSocket()  
 {  
   bind();  
 }  
   
   
   /** Returns the number of outstanding requests  
    */  
 Uint32 pegasus_acceptor::getOutstandingRequestCount()  
 {  
   return _monitor->getOutstandingRequestCount();  
 }  
   
 Boolean pegasus_acceptor::operator ==(const pegasus_acceptor& pa)  
 {  
   if(this == &pa)  
     return true;  
   return false;  
 }  
   
 Boolean pegasus_acceptor::operator ==(void* pa)  
 {  
   if((void*)this == pa)  
     return true;  
   return false;  
 }  
   
   
 pegasus_acceptor* pegasus_acceptor::find_acceptor(Boolean local, Uint32 port)  
 {  
   pegasus_acceptor* temp = 0;  
   
   try {  
     acceptors.try_lock(pegasus_thread_self());  
     temp = acceptors.next(temp);  
     while(temp){  
       if( local == true ){  
         if(temp->_localConnection){  
           acceptors.unlock();  
           return temp;  
         }  
       }  
       if(temp->_localConnection == local && temp->_portNumber ==port){  
         acceptors.unlock();  
         return temp;  
       }  
       temp = acceptors.next(temp);  
     }  
     acceptors.unlock();  
   }  
   catch(...){  
   }  
   return temp;  
 }  
   
 class m2e_rep;  
   
 void pegasus_acceptor::accept_dispatch(monitor_2_entry *entry)  
 {  
   pegasus_acceptor* myself = (pegasus_acceptor*)entry->get_accept();  
   
   HTTPConnection2* connection = new HTTPConnection2(entry->_rep->psock, myself->_outputMessageQueue);  
   
   // set the entry's dispatch parameter to point to the connection object  
   entry->set_dispatch ((void*)connection);  
   
   monitor_2::insert_connection(connection);  
   
 }  
   
   
 PEGASUS_NAMESPACE_END PEGASUS_NAMESPACE_END

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