version 1.69, 2003/11/05 06:29:36
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version 1.130, 2008/02/27 20:21:17
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//%2003//////////////////////////////////////////////////////////////////////// |
//%2006//////////////////////////////////////////////////////////////////////// |
// | // |
// 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. |
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// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; Symantec 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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// | // |
//============================================================================== | //============================================================================== |
// | // |
// Author: Mike Brasher (mbrasher@bmc.com) |
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// |
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// Modified By: Mike Day (monitor_2) mdday@us.ibm.com |
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// |
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//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
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#include "Network.h" |
#include <Pegasus/Common/Config.h> | #include <Pegasus/Common/Config.h> |
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#include <cstring> | #include <cstring> |
#include "Monitor.h" | #include "Monitor.h" |
#include "MessageQueue.h" | #include "MessageQueue.h" |
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#include <Pegasus/Common/Tracer.h> | #include <Pegasus/Common/Tracer.h> |
#include <Pegasus/Common/HTTPConnection.h> | #include <Pegasus/Common/HTTPConnection.h> |
#include <Pegasus/Common/MessageQueueService.h> | #include <Pegasus/Common/MessageQueueService.h> |
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#include <Pegasus/Common/Exception.h> |
#ifdef PEGASUS_OS_TYPE_WINDOWS |
#include "ArrayIterator.h" |
# if defined(FD_SETSIZE) && FD_SETSIZE != 1024 |
#include "HostAddress.h" |
# error "FD_SETSIZE was not set to 1024 prior to the last inclusion \ |
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of <winsock.h>. It may have been indirectly included (e.g., by including \ |
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<windows.h>). Finthe inclusion of that header which is visible to this \ |
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compilation unit and #define FD_SETZIE to 1024 prior to that inclusion; \ |
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otherwise, less than 64 clients (the default) will be able to connect to the \ |
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CIMOM. PLEASE DO NOT SUPPRESS THIS WARNING; PLEASE FIX THE PROBLEM." |
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# endif |
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# define FD_SETSIZE 1024 |
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# include <windows.h> |
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#else |
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# include <sys/types.h> |
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# include <sys/socket.h> |
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# include <sys/time.h> |
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# include <netinet/in.h> |
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# include <netdb.h> |
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# include <arpa/inet.h> |
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#endif |
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PEGASUS_USING_STD; | PEGASUS_USING_STD; |
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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static AtomicInt _connections = 0; |
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static struct timeval create_time = {0, 1}; |
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static struct timeval destroy_time = {300, 0}; |
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static struct timeval deadlock_time = {0, 0}; |
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//////////////////////////////////////////////////////////////////////////////// | //////////////////////////////////////////////////////////////////////////////// |
// | // |
// MonitorRep |
// Tickler |
// | // |
//////////////////////////////////////////////////////////////////////////////// | //////////////////////////////////////////////////////////////////////////////// |
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struct MonitorRep |
Tickler::Tickler() |
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: _listenSocket(PEGASUS_INVALID_SOCKET), |
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_clientSocket(PEGASUS_INVALID_SOCKET), |
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_serverSocket(PEGASUS_INVALID_SOCKET) |
{ | { |
fd_set rd_fd_set; |
try |
fd_set wr_fd_set; |
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fd_set ex_fd_set; |
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fd_set active_rd_fd_set; |
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fd_set active_wr_fd_set; |
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fd_set active_ex_fd_set; |
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}; |
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//////////////////////////////////////////////////////////////////////////////// |
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// |
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// Monitor |
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// |
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//////////////////////////////////////////////////////////////////////////////// |
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#define MAX_NUMBER_OF_MONITOR_ENTRIES 32 |
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Monitor::Monitor() |
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: _module_handle(0), _controller(0), _async(false), _stopConnections(0) |
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{ | { |
int numberOfMonitorEntriesToAllocate = MAX_NUMBER_OF_MONITOR_ENTRIES; |
_initialize(); |
Socket::initializeInterface(); |
} |
_rep = 0; |
catch (...) |
_entries.reserveCapacity(numberOfMonitorEntriesToAllocate); |
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for( int i = 0; i < numberOfMonitorEntriesToAllocate; i++ ) |
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{ | { |
_MonitorEntry entry(0, 0, 0); |
_uninitialize(); |
_entries.append(entry); |
throw; |
} | } |
} | } |
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Monitor::Monitor(Boolean async) |
Tickler::~Tickler() |
: _module_handle(0), _controller(0), _async(async), _stopConnections(0) |
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{ | { |
int numberOfMonitorEntriesToAllocate = MAX_NUMBER_OF_MONITOR_ENTRIES; |
_uninitialize(); |
Socket::initializeInterface(); |
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_rep = 0; |
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_entries.reserveCapacity(numberOfMonitorEntriesToAllocate); |
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for( int i = 0; i < numberOfMonitorEntriesToAllocate; i++ ) |
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{ |
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_MonitorEntry entry(0, 0, 0); |
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_entries.append(entry); |
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} |
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} | } |
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Monitor::~Monitor() |
#if defined(PEGASUS_OS_TYPE_UNIX) |
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// Use an anonymous pipe for the tickle connection. |
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void Tickler::_initialize() |
{ | { |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
int fds[2]; |
"deregistering with module controller"); |
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if(_module_handle != NULL) |
if (pipe(fds) == -1) |
{ | { |
_controller->deregister_module(PEGASUS_MODULENAME_MONITOR); |
MessageLoaderParms parms( |
_controller = 0; |
"Common.Monitor.TICKLE_CREATE", |
delete _module_handle; |
"Received error number $0 while creating the internal socket.", |
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getSocketError()); |
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throw Exception(parms); |
} | } |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, "deleting rep"); |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, "uninitializing interface"); |
_serverSocket = fds[0]; |
Socket::uninitializeInterface(); |
_clientSocket = fds[1]; |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"returning from monitor destructor"); |
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} | } |
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Boolean Monitor::run(Uint32 milliseconds) |
#else |
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// Use an external loopback socket connection to allow the tickle socket to |
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// be included in the select() array on non-Unix platforms. |
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void Tickler::_initialize() |
{ | { |
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// |
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// Set up the addresses for the listen, client, and server sockets |
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// based on whether IPv6 is enabled. |
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// |
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Boolean handled_events = false; |
Socket::initializeInterface(); |
int i = 0; |
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#if defined(PEGASUS_OS_OS400) || defined(PEGASUS_OS_HPUX) |
# ifdef PEGASUS_ENABLE_IPV6 |
struct timeval tv = {milliseconds/1000, milliseconds%1000*1000}; |
struct sockaddr_storage listenAddress; |
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struct sockaddr_storage clientAddress; |
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struct sockaddr_storage serverAddress; |
#else | #else |
struct timeval tv = {0, 1}; |
struct sockaddr_in listenAddress; |
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struct sockaddr_in clientAddress; |
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struct sockaddr_in serverAddress; |
#endif | #endif |
fd_set fdread; |
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FD_ZERO(&fdread); |
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_entry_mut.lock(pegasus_thread_self()); |
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// Check the stopConnections flag. If set, clear the Acceptor monitor entries |
int addressFamily; |
if (_stopConnections == 1) |
SocketLength addressLength; |
{ |
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for ( int indx = 0; indx < (int)_entries.size(); indx++) |
memset(&listenAddress, 0, sizeof (listenAddress)); |
{ |
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if (_entries[indx]._type == Monitor::ACCEPTOR) |
# ifdef PEGASUS_ENABLE_IPV6 |
{ |
if (System::isIPv6StackActive()) |
if ( _entries[indx]._status.value() != _MonitorEntry::EMPTY) |
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{ |
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if ( _entries[indx]._status.value() == _MonitorEntry::IDLE || |
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_entries[indx]._status.value() == _MonitorEntry::DYING ) |
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{ | { |
// remove the entry |
// Use the IPv6 loopback address for the listen sockets |
_entries[indx]._status = _MonitorEntry::EMPTY; |
HostAddress::convertTextToBinary( |
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HostAddress::AT_IPV6, |
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"::1", |
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&reinterpret_cast<struct sockaddr_in6*>(&listenAddress)->sin6_addr); |
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listenAddress.ss_family = AF_INET6; |
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reinterpret_cast<struct sockaddr_in6*>(&listenAddress)->sin6_port = 0; |
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addressFamily = AF_INET6; |
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addressLength = sizeof(struct sockaddr_in6); |
} | } |
else | else |
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# endif |
{ | { |
// set status to DYING |
// Use the IPv4 loopback address for the listen sockets |
_entries[indx]._status = _MonitorEntry::DYING; |
HostAddress::convertTextToBinary( |
} |
HostAddress::AT_IPV4, |
} |
"127.0.0.1", |
} |
&reinterpret_cast<struct sockaddr_in*>( |
} |
&listenAddress)->sin_addr.s_addr); |
_stopConnections = 0; |
reinterpret_cast<struct sockaddr_in*>(&listenAddress)->sin_family = |
} |
AF_INET; |
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reinterpret_cast<struct sockaddr_in*>(&listenAddress)->sin_port = 0; |
for( int indx = 0; indx < (int)_entries.size(); indx++) |
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{ |
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if ((_entries[indx]._status.value() == _MonitorEntry::DYING) && |
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(_entries[indx]._type == Monitor::CONNECTION)) |
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{ |
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MessageQueue *q = MessageQueue::lookup(_entries[indx].queueId); |
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PEGASUS_ASSERT(q != 0); |
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MessageQueue & o = static_cast<HTTPConnection *>(q)->get_owner(); |
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Message* message= new CloseConnectionMessage(_entries[indx].socket); |
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message->dest = o.getQueueId(); |
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// HTTPAcceptor is responsible for closing the connection. |
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// The lock is released to allow HTTPAcceptor to call |
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// unsolicitSocketMessages to free the entry. |
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// Once HTTPAcceptor completes processing of the close |
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// connection, the lock is re-requested and processing of |
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// the for loop continues. This is safe with the current |
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// implementation of the _entries object. Note that the |
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// loop condition accesses the _entries.size() on each |
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// iteration, so that a change in size while the mutex is |
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// unlocked will not result in an ArrayIndexOutOfBounds |
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// exception. |
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_entry_mut.unlock(); |
addressFamily = AF_INET; |
o.enqueue(message); |
addressLength = sizeof(struct sockaddr_in); |
_entry_mut.lock(pegasus_thread_self()); |
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} |
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} | } |
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Uint32 _idleEntries = 0; |
// Use the same address for the client socket as the listen socket |
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clientAddress = listenAddress; |
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for( int indx = 0; indx < (int)_entries.size(); indx++) |
// |
{ |
// Set up a listen socket to allow the tickle client and server to connect |
if(_entries[indx]._status.value() == _MonitorEntry::IDLE) |
// |
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// Create the listen socket |
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if ((_listenSocket = Socket::createSocket(addressFamily, SOCK_STREAM, 0)) == |
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PEGASUS_INVALID_SOCKET) |
{ | { |
_idleEntries++; |
MessageLoaderParms parms( |
FD_SET(_entries[indx].socket, &fdread); |
"Common.Monitor.TICKLE_CREATE", |
} |
"Received error number $0 while creating the internal socket.", |
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getSocketError()); |
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throw Exception(parms); |
} | } |
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// Fixed in monitor_2 but added because Monitor is still the default monitor. |
// Bind the listen socket to the loopback address |
// When _idleEntries is 0 don't immediately return, otherwise this loops out of control |
if (::bind( |
// kicking off kill idle thread threads. E.g. There is nothing to select on when the cimserver |
_listenSocket, |
// is shutting down. |
reinterpret_cast<struct sockaddr*>(&listenAddress), |
if( _idleEntries == 0 ) |
addressLength) < 0) |
{ | { |
Thread::sleep( milliseconds ); |
MessageLoaderParms parms( |
_entry_mut.unlock(); |
"Common.Monitor.TICKLE_BIND", |
return false; |
"Received error number $0 while binding the internal socket.", |
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getSocketError()); |
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throw Exception(parms); |
} | } |
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_entry_mut.unlock(); |
// Listen for a connection from the tickle client |
int events = select(FD_SETSIZE, &fdread, NULL, NULL, &tv); |
if ((::listen(_listenSocket, 3)) < 0) |
_entry_mut.lock(pegasus_thread_self()); |
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#ifdef PEGASUS_OS_TYPE_WINDOWS |
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if(events == SOCKET_ERROR) |
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#else |
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if(events == -1) |
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#endif |
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{ | { |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
MessageLoaderParms parms( |
"Monitor::run - errorno = %d has occurred on select.", errno); |
"Common.Monitor.TICKLE_LISTEN", |
// The EBADF error indicates that one or more or the file |
"Received error number $0 while listening to the internal socket.", |
// descriptions was not valid. This could indicate that |
getSocketError()); |
// the _entries structure has been corrupted or that |
throw Exception(parms); |
// we have a synchronization error. |
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PEGASUS_ASSERT(errno != EBADF); |
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} | } |
else if (events) |
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{ |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::run select event received events = %d, monitoring %d idle entries", |
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events, _idleEntries); |
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for( int indx = 0; indx < (int)_entries.size(); indx++) |
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{ |
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// The Monitor should only look at entries in the table that are IDLE (i.e., |
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// owned by the Monitor). |
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if((_entries[indx]._status.value() == _MonitorEntry::IDLE) && |
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(FD_ISSET(_entries[indx].socket, &fdread))) |
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{ |
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MessageQueue *q = MessageQueue::lookup(_entries[indx].queueId); |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::run indx = %d, queueId = %d, q = %p", |
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indx, _entries[indx].queueId, q); |
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PEGASUS_ASSERT(q !=0); |
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try |
// Verify we have the correct listen socket |
{ |
SocketLength tmpAddressLength = addressLength; |
if(_entries[indx]._type == Monitor::CONNECTION) |
int sock = ::getsockname( |
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_listenSocket, |
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reinterpret_cast<struct sockaddr*>(&listenAddress), |
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&tmpAddressLength); |
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if (sock < 0) |
{ | { |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
MessageLoaderParms parms( |
"_entries[indx].type for indx = %d is Monitor::CONNECTION", indx); |
"Common.Monitor.TICKLE_SOCKNAME", |
static_cast<HTTPConnection *>(q)->_entry_index = indx; |
"Received error number $0 while getting the internal socket name.", |
_entries[indx]._status = _MonitorEntry::BUSY; |
getSocketError()); |
// If allocate_and_awaken failure, retry on next iteration |
throw Exception(parms); |
if (!MessageQueueService::get_thread_pool()->allocate_and_awaken( |
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(void *)q, _dispatch)) |
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{ |
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Tracer::trace(TRC_DISCARDED_DATA, Tracer::LEVEL2, |
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"Monitor::run: Insufficient resources to process request."); |
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_entries[indx]._status = _MonitorEntry::IDLE; |
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_entry_mut.unlock(); |
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return true; |
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} | } |
} |
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else |
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{ |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Non-connection entry, indx = %d, has been received.", indx); |
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int events = 0; |
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events |= SocketMessage::READ; |
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Message *msg = new SocketMessage(_entries[indx].socket, events); |
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_entries[indx]._status = _MonitorEntry::BUSY; |
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_entry_mut.unlock(); |
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q->enqueue(msg); |
// |
_entries[indx]._status = _MonitorEntry::IDLE; |
// Set up the client side of the tickle connection. |
return true; |
// |
} |
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} |
// Create the client socket |
catch(...) |
if ((_clientSocket = Socket::createSocket(addressFamily, SOCK_STREAM, 0)) == |
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PEGASUS_INVALID_SOCKET) |
{ | { |
} |
MessageLoaderParms parms( |
handled_events = true; |
"Common.Monitor.TICKLE_CLIENT_CREATE", |
} |
"Received error number $0 while creating the internal client " |
} |
"socket.", |
} |
getSocketError()); |
_entry_mut.unlock(); |
throw Exception(parms); |
return(handled_events); |
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} | } |
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void Monitor::stopListeningForConnections() |
// Bind the client socket to the loopback address |
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if (::bind( |
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_clientSocket, |
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reinterpret_cast<struct sockaddr*>(&clientAddress), |
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addressLength) < 0) |
{ | { |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::stopListeningForConnections()"); |
MessageLoaderParms parms( |
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"Common.Monitor.TICKLE_CLIENT_BIND", |
_stopConnections = 1; |
"Received error number $0 while binding the internal client " |
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"socket.", |
PEG_METHOD_EXIT(); |
getSocketError()); |
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throw Exception(parms); |
} | } |
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// Connect the client socket to the listen socket address |
int Monitor::solicitSocketMessages( |
if (::connect( |
Sint32 socket, |
_clientSocket, |
Uint32 events, |
reinterpret_cast<struct sockaddr*>(&listenAddress), |
Uint32 queueId, |
addressLength) < 0) |
int type) |
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{ | { |
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MessageLoaderParms parms( |
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"Common.Monitor.TICKLE_CLIENT_CONNECT", |
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"Received error number $0 while connecting the internal client " |
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"socket.", |
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getSocketError()); |
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throw Exception(parms); |
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} |
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PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solicitSocketMessages"); |
// |
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// Set up the server side of the tickle connection. |
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// |
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_entry_mut.lock(pegasus_thread_self()); |
tmpAddressLength = addressLength; |
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for(int index = 0; index < (int)_entries.size(); index++) |
// Accept the client socket connection. |
{ |
_serverSocket = ::accept( |
try |
_listenSocket, |
{ |
reinterpret_cast<struct sockaddr*>(&serverAddress), |
if(_entries[index]._status.value() == _MonitorEntry::EMPTY) |
&tmpAddressLength); |
{ |
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_entries[index].socket = socket; |
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_entries[index].queueId = queueId; |
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_entries[index]._type = type; |
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_entries[index]._status = _MonitorEntry::IDLE; |
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_entry_mut.unlock(); |
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return index; |
if (_serverSocket == PEGASUS_SOCKET_ERROR) |
} |
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} |
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catch(...) |
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{ | { |
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MessageLoaderParms parms( |
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"Common.Monitor.TICKLE_ACCEPT", |
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"Received error number $0 while accepting the internal socket " |
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"connection.", |
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getSocketError()); |
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throw Exception(parms); |
} | } |
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} |
// |
_entry_mut.unlock(); |
// Close the listen socket and make the other sockets non-blocking |
PEG_METHOD_EXIT(); |
// |
return -1; |
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} |
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void Monitor::unsolicitSocketMessages(Sint32 socket) |
Socket::close(_listenSocket); |
{ |
Socket::disableBlocking(_serverSocket); |
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Socket::disableBlocking(_clientSocket); |
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} |
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PEG_METHOD_ENTER(TRC_HTTP, "Monitor::unsolicitSocketMessages"); |
#endif |
_entry_mut.lock(pegasus_thread_self()); |
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for(int index = 0; index < (int)_entries.size(); index++) |
void Tickler::_uninitialize() |
{ | { |
if(_entries[index].socket == socket) |
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, "uninitializing interface"); |
{ |
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_entries[index]._status = _MonitorEntry::EMPTY; |
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_entries[index].socket = -1; |
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break; |
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} |
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} |
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_entry_mut.unlock(); |
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PEG_METHOD_EXIT(); |
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} |
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PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL Monitor::_dispatch(void *parm) |
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{ |
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HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(parm); |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::_dispatch: entering run() for indx = %d, queueId = %d, q = %p", |
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dst->_entry_index, dst->_monitor->_entries[dst->_entry_index].queueId, dst); |
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try | try |
{ | { |
dst->run(1); |
Socket::close(_serverSocket); |
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Socket::close(_clientSocket); |
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Socket::close(_listenSocket); |
} | } |
catch (...) | catch (...) |
{ | { |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, |
"Monitor::_dispatch: exception received"); |
"Failed to close tickle sockets"); |
} |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::_dispatch: exited run() for index %d", dst->_entry_index); |
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PEGASUS_ASSERT(dst->_monitor->_entries[dst->_entry_index]._status.value() == _MonitorEntry::BUSY); |
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// Once the HTTPConnection thread has set the status value to either |
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// Monitor::DYING or Monitor::IDLE, it has returned control of the connection |
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// to the Monitor. It is no longer permissible to access the connection |
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// or the entry in the _entries table. |
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if (dst->_connectionClosePending) |
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{ |
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dst->_monitor->_entries[dst->_entry_index]._status = _MonitorEntry::DYING; |
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} | } |
else |
Socket::uninitializeInterface(); |
{ |
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dst->_monitor->_entries[dst->_entry_index]._status = _MonitorEntry::IDLE; |
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} |
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return 0; |
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} | } |
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//////////////////////////////////////////////////////////////////////////////// |
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// |
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// Monitor |
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// |
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//////////////////////////////////////////////////////////////////////////////// |
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////************************* monitor 2 *****************************//// |
#define MAX_NUMBER_OF_MONITOR_ENTRIES 32 |
////************************* monitor 2 *****************************//// |
Monitor::Monitor() |
////************************* monitor 2 *****************************//// |
: _stopConnections(0), |
////************************* monitor 2 *****************************//// |
_stopConnectionsSem(0), |
////************************* monitor 2 *****************************//// |
_solicitSocketCount(0) |
////************************* monitor 2 *****************************//// |
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////************************* monitor 2 *****************************//// |
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m2e_rep::m2e_rep(void) |
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:Base(), state(IDLE) |
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{ |
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} |
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m2e_rep::m2e_rep(monitor_2_entry_type _type, |
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pegasus_socket _sock, |
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void* _accept, |
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void* _dispatch) |
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: Base(), type(_type), state(IDLE), psock(_sock), |
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accept_parm(_accept), dispatch_parm(_dispatch) |
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{ | { |
|
int numberOfMonitorEntriesToAllocate = MAX_NUMBER_OF_MONITOR_ENTRIES; |
|
_entries.reserveCapacity(numberOfMonitorEntriesToAllocate); |
| |
} |
// Create a MonitorEntry for the Tickler and set its state to IDLE so the |
|
// Monitor will watch for its events. |
|
_entries.append(MonitorEntry( |
|
_tickler.getServerSocket(), |
|
1, |
|
MonitorEntry::STATUS_IDLE, |
|
MonitorEntry::TYPE_INTERNAL)); |
| |
m2e_rep::~m2e_rep(void) |
// Start the count at 1 because _entries[0] is the Tickler |
|
for (int i = 1; i < numberOfMonitorEntriesToAllocate; i++) |
{ | { |
} |
_entries.append(MonitorEntry()); |
|
|
m2e_rep::m2e_rep(const m2e_rep& r) |
|
: Base() |
|
{ |
|
if(this != &r){ |
|
type = r.type; |
|
psock = r.psock; |
|
accept_parm = r.accept_parm; |
|
dispatch_parm = r.dispatch_parm; |
|
state = IDLE; |
|
|
|
} | } |
} | } |
| |
|
Monitor::~Monitor() |
m2e_rep& m2e_rep::operator =(const m2e_rep& r) |
|
{ | { |
if(this != &r) { |
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, |
type = r.type; |
"returning from monitor destructor"); |
psock = r.psock; |
|
accept_parm = r.accept_parm; |
|
dispatch_parm = r.dispatch_parm; |
|
state = IDLE; |
|
} |
|
return *this; |
|
} | } |
| |
Boolean m2e_rep::operator ==(const m2e_rep& r) |
void Monitor::tickle() |
{ | { |
if(this == &r) |
Socket::write(_tickler.getClientSocket(), "\0", 1); |
return true; |
|
return false; |
|
} | } |
| |
Boolean m2e_rep::operator ==(void* r) |
void Monitor::setState( |
|
Uint32 index, |
|
MonitorEntry::Status status) |
{ | { |
if((void*)this == r) |
AutoMutex autoEntryMutex(_entriesMutex); |
return true; |
// Set the state to requested state |
return false; |
_entries[index].status = status; |
} | } |
| |
m2e_rep::operator pegasus_socket() const |
void Monitor::run(Uint32 milliseconds) |
{ | { |
return psock; |
struct timeval tv = {milliseconds/1000, milliseconds%1000*1000}; |
} |
|
| |
|
fd_set fdread; |
|
FD_ZERO(&fdread); |
| |
monitor_2_entry::monitor_2_entry(void) |
AutoMutex autoEntryMutex(_entriesMutex); |
{ |
|
_rep = new m2e_rep(); |
|
} |
|
| |
monitor_2_entry::monitor_2_entry(pegasus_socket& _psock, |
ArrayIterator<MonitorEntry> entries(_entries); |
monitor_2_entry_type _type, |
|
void* _accept_parm, void* _dispatch_parm) |
|
{ |
|
_rep = new m2e_rep(_type, _psock, _accept_parm, _dispatch_parm); |
|
} |
|
| |
monitor_2_entry::monitor_2_entry(const monitor_2_entry& e) |
// Check the stopConnections flag. If set, clear the Acceptor monitor |
|
// entries |
|
if (_stopConnections.get() == 1) |
{ | { |
if(this != &e){ |
for (Uint32 indx = 0; indx < entries.size(); indx++) |
Inc(this->_rep = e._rep); |
|
} |
|
} |
|
|
|
monitor_2_entry::~monitor_2_entry(void) |
|
{ | { |
|
if (entries[indx].type == MonitorEntry::TYPE_ACCEPTOR) |
Dec(_rep); |
|
} |
|
|
|
monitor_2_entry& monitor_2_entry::operator=(const monitor_2_entry& e) |
|
{ | { |
if(this != &e){ |
if (entries[indx].status != MonitorEntry::STATUS_EMPTY) |
Dec(_rep); |
|
Inc(this->_rep = e._rep); |
|
} |
|
return *this; |
|
} |
|
|
|
Boolean monitor_2_entry::operator ==(const monitor_2_entry& me) const |
|
{ | { |
if(this == &me) |
if (entries[indx].status == MonitorEntry::STATUS_IDLE || |
return true; |
entries[indx].status == MonitorEntry::STATUS_DYING) |
return false; |
|
} |
|
|
|
Boolean monitor_2_entry::operator ==(void* k) const |
|
{ | { |
if((void *)this == k) |
// remove the entry |
return true; |
entries[indx].status = MonitorEntry::STATUS_EMPTY; |
return false; |
|
} | } |
|
else |
|
|
monitor_2_entry_type monitor_2_entry::get_type(void) const |
|
{ | { |
return _rep->type; |
// set status to DYING |
|
entries[indx].status = MonitorEntry::STATUS_DYING; |
} | } |
|
|
void monitor_2_entry::set_type(monitor_2_entry_type t) |
|
{ |
|
_rep->type = t; |
|
} | } |
|
|
|
|
monitor_2_entry_state monitor_2_entry::get_state(void) const |
|
{ |
|
return (monitor_2_entry_state) _rep->state.value(); |
|
} | } |
|
|
void monitor_2_entry::set_state(monitor_2_entry_state t) |
|
{ |
|
_rep->state = t; |
|
} | } |
|
_stopConnections = 0; |
void* monitor_2_entry::get_accept(void) const |
_stopConnectionsSem.signal(); |
{ |
|
return _rep->accept_parm; |
|
} | } |
| |
void monitor_2_entry::set_accept(void* a) |
for (Uint32 indx = 0; indx < entries.size(); indx++) |
{ | { |
_rep->accept_parm = a; |
const MonitorEntry& entry = entries[indx]; |
} |
|
| |
|
if ((entry.status == MonitorEntry::STATUS_DYING) && |
void* monitor_2_entry::get_dispatch(void) const |
(entry.type == MonitorEntry::TYPE_CONNECTION)) |
{ | { |
return _rep->dispatch_parm; |
MessageQueue *q = MessageQueue::lookup(entry.queueId); |
} |
PEGASUS_ASSERT(q != 0); |
|
HTTPConnection &h = *static_cast<HTTPConnection *>(q); |
| |
void monitor_2_entry::set_dispatch(void* a) |
if (h._connectionClosePending == false) |
{ |
continue; |
_rep->dispatch_parm = a; |
|
} |
|
| |
pegasus_socket monitor_2_entry::get_sock(void) const |
// NOTE: do not attempt to delete while there are pending responses |
{ |
// coming thru. The last response to come thru after a |
return _rep->psock; |
// _connectionClosePending will reset _responsePending to false |
} |
// and then cause the monitor to rerun this code and clean up. |
|
// (see HTTPConnection.cpp) |
|
|
|
if (h._responsePending == true) |
|
{ |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"Monitor::run - Ignoring connection delete request " |
|
"because responses are still pending. " |
|
"connection=0x%p, socket=%d\n", |
|
(void *)&h, h.getSocket())); |
|
continue; |
|
} |
|
h._connectionClosePending = false; |
|
MessageQueue &o = h.get_owner(); |
|
Message* message= new CloseConnectionMessage(entry.socket); |
|
message->dest = o.getQueueId(); |
| |
|
// HTTPAcceptor is responsible for closing the connection. |
|
// The lock is released to allow HTTPAcceptor to call |
|
// unsolicitSocketMessages to free the entry. |
|
// Once HTTPAcceptor completes processing of the close |
|
// connection, the lock is re-requested and processing of |
|
// the for loop continues. This is safe with the current |
|
// implementation of the entries object. Note that the |
|
// loop condition accesses the entries.size() on each |
|
// iteration, so that a change in size while the mutex is |
|
// unlocked will not result in an ArrayIndexOutOfBounds |
|
// exception. |
| |
void monitor_2_entry::set_sock(pegasus_socket& s) |
_entriesMutex.unlock(); |
{ |
o.enqueue(message); |
_rep->psock = s; |
_entriesMutex.lock(); |
| |
|
// After enqueue a message and the autoEntryMutex has been |
|
// released and locked again, the array of _entries can be |
|
// changed. The ArrayIterator has be reset with the original |
|
// _entries. |
|
entries.reset(_entries); |
|
} |
} | } |
| |
//static monitor_2* _m2_instance; |
Uint32 _idleEntries = 0; |
|
|
AsyncDQueue<HTTPConnection2> monitor_2::_connections(true, 0); |
|
| |
monitor_2::monitor_2(void) |
/* |
: _session_dispatch(0), _accept_dispatch(0), _listeners(true, 0), |
We will keep track of the maximum socket number and pass this value |
_ready(true, 0), _die(0), _requestCount(0) |
to the kernel as a parameter to SELECT. This loop seems like a good |
|
place to calculate the max file descriptor (maximum socket number) |
|
because we have to traverse the entire array. |
|
*/ |
|
SocketHandle maxSocketCurrentPass = 0; |
|
for (Uint32 indx = 0; indx < entries.size(); indx++) |
{ | { |
try { |
if (maxSocketCurrentPass < entries[indx].socket) |
|
maxSocketCurrentPass = entries[indx].socket; |
| |
bsd_socket_factory _factory; |
if (entries[indx].status == MonitorEntry::STATUS_IDLE) |
|
{ |
|
_idleEntries++; |
|
FD_SET(entries[indx].socket, &fdread); |
|
} |
|
} |
| |
// set up the listener/acceptor |
/* |
pegasus_socket temp = pegasus_socket(&_factory); |
Add 1 then assign maxSocket accordingly. We add 1 to account for |
|
descriptors starting at 0. |
|
*/ |
|
maxSocketCurrentPass++; |
| |
temp.socket(PF_INET, SOCK_STREAM, 0); |
_entriesMutex.unlock(); |
// initialize the address |
|
memset(&_tickle_addr, 0, sizeof(_tickle_addr)); |
|
#ifdef PEGASUS_OS_ZOS |
|
_tickle_addr.sin_addr.s_addr = inet_addr_ebcdic("127.0.0.1"); |
|
#else |
|
#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM |
|
#pragma convert(37) |
|
#endif |
|
_tickle_addr.sin_addr.s_addr = inet_addr("127.0.0.1"); |
|
#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM |
|
#pragma convert(0) |
|
#endif |
|
#endif |
|
_tickle_addr.sin_family = PF_INET; |
|
_tickle_addr.sin_port = 0; |
|
|
|
PEGASUS_SOCKLEN_SIZE _addr_size = sizeof(_tickle_addr); |
|
| |
temp.bind((struct sockaddr *)&_tickle_addr, sizeof(_tickle_addr)); |
// |
temp.listen(3); |
// The first argument to select() is ignored on Windows and it is not |
temp.getsockname((struct sockaddr*)&_tickle_addr, &_addr_size); |
// a socket value. The original code assumed that the number of sockets |
|
// and a socket value have the same type. On Windows they do not. |
// set up the connector |
// |
|
#ifdef PEGASUS_OS_TYPE_WINDOWS |
pegasus_socket tickler = pegasus_socket(&_factory); |
int events = select(0, &fdread, NULL, NULL, &tv); |
tickler.socket(PF_INET, SOCK_STREAM, 0); |
|
struct sockaddr_in _addr; |
|
memset(&_addr, 0, sizeof(_addr)); |
|
#ifdef PEGASUS_OS_ZOS |
|
_addr.sin_addr.s_addr = inet_addr_ebcdic("127.0.0.1"); |
|
#else | #else |
_addr.sin_addr.s_addr = inet_addr("127.0.0.1"); |
int events = select(maxSocketCurrentPass, &fdread, NULL, NULL, &tv); |
#endif | #endif |
_addr.sin_family = PF_INET; |
int selectErrno = getSocketError(); |
_addr.sin_port = 0; |
|
tickler.bind((struct sockaddr*)&_addr, sizeof(_addr)); |
|
tickler.connect((struct sockaddr*)&_tickle_addr, sizeof(_tickle_addr)); |
|
| |
_tickler.set_sock(tickler); |
_entriesMutex.lock(); |
_tickler.set_type(INTERNAL); |
|
_tickler.set_state(BUSY); |
|
| |
struct sockaddr_in peer; |
struct timeval timeNow; |
memset(&peer, 0, sizeof(peer)); |
Time::gettimeofday(&timeNow); |
PEGASUS_SOCKLEN_SIZE peer_size = sizeof(peer); |
|
| |
pegasus_socket accepted = temp.accept((struct sockaddr*)&peer, &peer_size); |
// After enqueue a message and the autoEntryMutex has been released and |
|
// locked again, the array of _entries can be changed. The ArrayIterator |
|
// has be reset with the original _entries |
|
entries.reset(_entries); |
| |
monitor_2_entry* _tickle = new monitor_2_entry(accepted, INTERNAL, 0, 0); |
if (events == PEGASUS_SOCKET_ERROR) |
_tickle->set_state(BUSY); |
|
|
|
_listeners.insert_first(_tickle); |
|
|
|
} |
|
catch(...){ } |
|
} |
|
|
|
monitor_2::~monitor_2(void) |
|
{ | { |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"Monitor::run - select() returned error %d.", selectErrno)); |
|
// The EBADF error indicates that one or more or the file |
|
// descriptions was not valid. This could indicate that |
|
// the entries structure has been corrupted or that |
|
// we have a synchronization error. |
| |
stop(); |
PEGASUS_ASSERT(selectErrno != EBADF); |
|
|
try { |
|
monitor_2_entry* temp = _listeners.remove_first(); |
|
while(temp){ |
|
delete temp; |
|
temp = _listeners.remove_first(); |
|
} | } |
} |
else if (events) |
|
|
catch(...){ } |
|
|
|
|
|
try |
|
{ |
|
HTTPConnection2* temp = _connections.remove_first(); |
|
while(temp) |
|
{ | { |
delete temp; |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
temp = _connections.remove_first(); |
"Monitor::run select event received events = %d, monitoring %d " |
} |
"idle entries", |
} |
events, _idleEntries)); |
catch(...) |
for (Uint32 indx = 0; indx < entries.size(); indx++) |
|
{ |
|
// The Monitor should only look at entries in the table that are |
|
// IDLE (i.e., owned by the Monitor). |
|
if ((entries[indx].status == MonitorEntry::STATUS_IDLE) && |
|
(FD_ISSET(entries[indx].socket, &fdread))) |
{ | { |
} |
MessageQueue* q = MessageQueue::lookup(entries[indx].queueId); |
|
PEGASUS_ASSERT(q != 0); |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
} |
"Monitor::run indx = %d, queueId = %d, q = %p", |
|
indx, entries[indx].queueId, q)); |
| |
void monitor_2::run(void) |
try |
{ | { |
monitor_2_entry* temp; |
if (entries[indx].type == MonitorEntry::TYPE_CONNECTION) |
while(_die.value() == 0) { |
|
|
|
struct timeval tv_idle = { 60, 0 }; |
|
|
|
// place all sockets in the select set |
|
FD_ZERO(&rd_fd_set); |
|
try { |
|
_listeners.lock(pegasus_thread_self()); |
|
temp = _listeners.next(0); |
|
while(temp != 0 ){ |
|
if(temp->get_state() == CLOSED ) { |
|
monitor_2_entry* closed = temp; |
|
temp = _listeners.next(closed); |
|
_listeners.remove_no_lock(closed); |
|
|
|
HTTPConnection2 *cn = monitor_2::remove_connection((Sint32)(closed->get_sock())); |
|
delete cn; |
|
delete closed; |
|
} |
|
if(temp == 0) |
|
break; |
|
Sint32 fd = (Sint32) temp->get_sock(); |
|
if(fd >= 0 ) |
|
FD_SET(fd , &rd_fd_set); |
|
temp = _listeners.next(temp); |
|
} |
|
_listeners.unlock(); |
|
} |
|
catch(...){ |
|
return; |
|
} |
|
// important - the dispatch routine has pointers to all the |
|
// entries that are readable. These entries can be changed but |
|
// the pointer must not be tampered with. |
|
if(_connections.count() ) |
|
int events = select(FD_SETSIZE, &rd_fd_set, NULL, NULL, NULL); |
|
else |
|
int events = select(FD_SETSIZE, &rd_fd_set, NULL, NULL, &tv_idle); |
|
|
|
if(_die.value()) |
|
{ | { |
break; |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
} |
"entries[%d].type is TYPE_CONNECTION", |
|
indx)); |
|
|
|
HTTPConnection *dst = |
|
reinterpret_cast<HTTPConnection *>(q); |
|
dst->_entry_index = indx; |
|
|
|
// Update idle start time because we have received some |
|
// data. Any data is good data at this point, and we'll |
|
// keep the connection alive, even if we've exceeded |
|
// the idleConnectionTimeout, which will be checked |
|
// when we call closeConnectionOnTimeout() next. |
|
Time::gettimeofday(&dst->_idleStartTime); |
|
|
|
// Check for accept pending (ie. SSL handshake pending) |
|
// or idle connection timeouts for sockets from which |
|
// we received data (avoiding extra queue lookup below). |
|
if (!dst->closeConnectionOnTimeout(&timeNow)) |
|
{ |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"Entering HTTPConnection::run() for " |
|
"indx = %d, queueId = %d, q = %p", |
|
indx, entries[indx].queueId, q)); |
| |
try { |
|
_listeners.lock(pegasus_thread_self()); |
|
temp = _listeners.next(0); |
|
while(temp != 0 ){ |
|
Sint32 fd = (Sint32) temp->get_sock(); |
|
if(fd >= 0 && FD_ISSET(fd, &rd_fd_set)) { |
|
temp->set_state(BUSY); |
|
FD_CLR(fd, &rd_fd_set); |
|
monitor_2_entry* ready = new monitor_2_entry(*temp); |
|
try | try |
{ | { |
_ready.insert_first(ready); |
dst->run(1); |
} | } |
catch(...) | catch(...) |
{ | { |
|
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL2, |
|
"Caught exception from " |
|
"HTTPConnection::run()"); |
} | } |
|
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, |
_requestCount++; |
"Exited HTTPConnection::run()"); |
} |
|
temp = _listeners.next(temp); |
|
} |
|
_listeners.unlock(); |
|
} | } |
catch(...){ |
|
return; |
|
} |
|
// now handle the sockets that are ready to read |
|
if(_ready.count()) |
|
_dispatch(); |
|
else |
|
{ |
|
if(_connections.count() == 0 ) |
|
_idle_dispatch(_idle_parm); |
|
} |
|
} // while alive |
|
| |
} |
|
| |
void* monitor_2::set_session_dispatch(void (*dp)(monitor_2_entry*)) |
|
{ |
|
void* old = (void *)_session_dispatch; |
|
_session_dispatch = dp; |
|
return old; |
|
} | } |
|
else if (entries[indx].type == MonitorEntry::TYPE_INTERNAL) |
void* monitor_2::set_accept_dispatch(void (*dp)(monitor_2_entry*)) |
|
{ | { |
void* old = (void*)_accept_dispatch; |
char buffer; |
_accept_dispatch = dp; |
Sint32 ignored = |
return old; |
Socket::read(entries[indx].socket, &buffer, 1); |
} | } |
|
else |
void* monitor_2::set_idle_dispatch(void (*dp)(void*)) |
|
{ | { |
void* old = (void*)_idle_dispatch; |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
_idle_dispatch = dp; |
"Non-connection entry, indx = %d, has been " |
return old; |
"received.", |
} |
indx)); |
|
int events = 0; |
|
events |= SocketMessage::READ; |
|
Message* msg = new SocketMessage( |
|
entries[indx].socket, events); |
|
entries[indx].status = MonitorEntry::STATUS_BUSY; |
|
_entriesMutex.unlock(); |
|
q->enqueue(msg); |
|
_entriesMutex.lock(); |
| |
void* monitor_2::set_idle_parm(void* parm) |
// After enqueue a message and the autoEntryMutex has |
{ |
// been released and locked again, the array of |
void* old = _idle_parm; |
// entries can be changed. The ArrayIterator has to be |
_idle_parm = parm; |
// reset with the latest _entries. |
return old; |
entries.reset(_entries); |
|
entries[indx].status = MonitorEntry::STATUS_IDLE; |
} | } |
|
|
|
|
|
|
//----------------------------------------------------------------- |
|
// Note on deleting the monitor_2_entry nodes: |
|
// Each case: in the switch statement needs to handle the deletion |
|
// of the monitor_2_entry * node differently. A SESSION dispatch |
|
// routine MUST DELETE the entry during its dispatch handling. |
|
// All other dispatch routines MUST NOT delete the entry during the |
|
// dispatch handling, but must allow monitor_2::_dispatch to delete |
|
// the entry. |
|
// |
|
// The reason is pretty obscure and it is debatable whether or not |
|
// to even bother, but during cimserver shutdown the single monitor_2_entry* |
|
// will leak unless the _session_dispatch routine takes care of deleting it. |
|
// |
|
// The reason is that a shutdown messages completely stops everything and |
|
// the _session_dispatch routine never returns. So monitor_2::_dispatch is |
|
// never able to do its own cleanup. |
|
// |
|
// << Mon Oct 13 09:33:33 2003 mdd >> |
|
//----------------------------------------------------------------- |
|
|
|
void monitor_2::_dispatch(void) |
|
{ |
|
monitor_2_entry* entry; |
|
|
|
try |
|
{ |
|
|
|
entry = _ready.remove_first(); |
|
} | } |
catch(...) | catch(...) |
{ | { |
} | } |
|
|
while(entry != 0 ) { |
|
switch(entry->get_type()) { |
|
case INTERNAL: |
|
static char buffer[2]; |
|
entry->get_sock().disableBlocking(); |
|
entry->get_sock().read(&buffer, 2); |
|
entry->get_sock().enableBlocking(); |
|
delete entry; |
|
|
|
break; |
|
case LISTEN: |
|
{ |
|
static struct sockaddr peer; |
|
static PEGASUS_SOCKLEN_SIZE peer_size = sizeof(peer); |
|
entry->get_sock().disableBlocking(); |
|
pegasus_socket connected = entry->get_sock().accept(&peer, &peer_size); |
|
#ifdef PEGASUS_OS_TYPE_WINDOWS |
|
if((Sint32)connected == SOCKET_ERROR) |
|
#else |
|
if((Sint32)connected == -1 ) |
|
#endif |
|
{ |
|
delete entry; |
|
break; |
|
} | } |
|
// else check for accept pending (ie. SSL handshake pending) or |
|
// idle connection timeouts for sockets from which we did not |
|
// receive data. |
|
else if ((entries[indx].status == MonitorEntry::STATUS_IDLE) && |
|
entries[indx].type == MonitorEntry::TYPE_CONNECTION) |
| |
entry->get_sock().enableBlocking(); |
|
monitor_2_entry *temp = add_entry(connected, SESSION, entry->get_accept(), entry->get_dispatch()); |
|
if(temp && _accept_dispatch != 0) |
|
_accept_dispatch(temp); |
|
delete entry; |
|
|
|
} |
|
break; |
|
case SESSION: |
|
if(_session_dispatch != 0 ) |
|
{ | { |
// NOTE: _session_dispatch will delete entry - do not do it here |
MessageQueue* q = MessageQueue::lookup(entries[indx].queueId); |
_session_dispatch(entry); |
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); |
|
dst->_entry_index = indx; |
|
dst->closeConnectionOnTimeout(&timeNow); |
} | } |
|
|
else { |
|
static char buffer[4096]; |
|
int bytes = entry->get_sock().read(&buffer, 4096); |
|
delete entry; |
|
} | } |
|
|
break; |
|
case UNTYPED: |
|
default: |
|
delete entry; |
|
break; |
|
} | } |
_requestCount--; |
// else if "events" is zero (ie. select timed out) then we still need |
|
// to check if there are any pending SSL handshakes that have timed out. |
if(_ready.count() == 0 ) |
else |
break; |
|
|
|
try |
|
{ | { |
entry = _ready.remove_first(); |
for (Uint32 indx = 0; indx < entries.size(); indx++) |
} |
{ |
catch(...) |
if ((entries[indx].status == MonitorEntry::STATUS_IDLE) && |
|
entries[indx].type == MonitorEntry::TYPE_CONNECTION) |
{ | { |
|
MessageQueue* q = MessageQueue::lookup(entries[indx].queueId); |
|
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); |
|
dst->_entry_index = indx; |
|
dst->closeConnectionOnTimeout(&timeNow); |
|
} |
} | } |
|
|
} | } |
} | } |
| |
void monitor_2::stop(void) |
void Monitor::stopListeningForConnections(Boolean wait) |
{ | { |
_die = 1; |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::stopListeningForConnections()"); |
|
// set boolean then tickle the server to recognize _stopConnections |
|
_stopConnections = 1; |
tickle(); | tickle(); |
// shut down the listener list, free the list nodes |
|
_tickler.get_sock().close(); |
|
_listeners.shutdown_queue(); |
|
} |
|
| |
void monitor_2::tickle(void) |
if (wait) |
{ | { |
static char _buffer[] = |
// Wait for the monitor to notice _stopConnections. Otherwise the |
{ |
// caller of this function may unbind the ports while the monitor |
'0','0' |
// is still accepting connections on them. |
}; |
_stopConnectionsSem.wait(); |
|
} |
_tickler.get_sock().disableBlocking(); |
|
|
|
_tickler.get_sock().write(&_buffer, 2); |
|
_tickler.get_sock().enableBlocking(); |
|
| |
|
PEG_METHOD_EXIT(); |
} | } |
| |
| |
monitor_2_entry* monitor_2::add_entry(pegasus_socket& ps, |
int Monitor::solicitSocketMessages( |
monitor_2_entry_type type, |
SocketHandle socket, |
void* accept_parm, |
Uint32 events, |
void* dispatch_parm) |
Uint32 queueId, |
|
Uint32 type) |
{ | { |
monitor_2_entry* m2e = new monitor_2_entry(ps, type, accept_parm, dispatch_parm); |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solicitSocketMessages"); |
|
AutoMutex autoMut(_entriesMutex); |
try{ |
|
_listeners.insert_first(m2e); |
|
} |
|
catch(...){ |
|
delete m2e; |
|
return 0; |
|
} |
|
tickle(); |
|
return m2e; |
|
} |
|
| |
Boolean monitor_2::remove_entry(Sint32 s) |
// Check to see if we need to dynamically grow the _entries array |
{ |
// We always want the _entries array to be 2 bigger than the |
monitor_2_entry* temp; |
// current connections requested |
try { |
_solicitSocketCount++; // bump the count |
_listeners.try_lock(pegasus_thread_self()); |
|
temp = _listeners.next(0); |
|
while(temp != 0){ |
|
if(s == (Sint32)temp->_rep->psock ){ |
|
temp = _listeners.remove_no_lock(temp); |
|
delete temp; |
|
_listeners.unlock(); |
|
return true; |
|
} |
|
temp = _listeners.next(temp); |
|
} |
|
_listeners.unlock(); |
|
} |
|
catch(...){ |
|
} |
|
return false; |
|
} |
|
| |
Uint32 monitor_2::getOutstandingRequestCount(void) |
for (Uint32 i = _entries.size(); i < _solicitSocketCount + 1; i++) |
{ | { |
return _requestCount.value(); |
_entries.append(MonitorEntry()); |
|
|
} | } |
| |
|
for (Uint32 index = 1; index < _entries.size(); index++) |
HTTPConnection2* monitor_2::remove_connection(Sint32 sock) |
|
{ | { |
|
|
HTTPConnection2* temp; |
|
try | try |
{ | { |
monitor_2::_connections.lock(pegasus_thread_self()); |
if (_entries[index].status == MonitorEntry::STATUS_EMPTY) |
temp = monitor_2::_connections.next(0); |
|
while(temp != 0 ) |
|
{ |
|
if(sock == temp->getSocket()) |
|
{ | { |
temp = monitor_2::_connections.remove_no_lock(temp); |
_entries[index].socket = socket; |
monitor_2::_connections.unlock(); |
_entries[index].queueId = queueId; |
return temp; |
_entries[index].type = type; |
} |
_entries[index].status = MonitorEntry::STATUS_IDLE; |
temp = monitor_2::_connections.next(temp); |
|
|
return (int)index; |
} | } |
monitor_2::_connections.unlock(); |
|
} | } |
catch(...) | catch(...) |
{ | { |
} | } |
return 0; |
} |
|
// decrease the count, if we are here we didn't do anything meaningful |
|
_solicitSocketCount--; |
|
PEG_METHOD_EXIT(); |
|
return -1; |
} | } |
| |
Boolean monitor_2::insert_connection(HTTPConnection2* connection) |
void Monitor::unsolicitSocketMessages(SocketHandle socket) |
{ | { |
try |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::unsolicitSocketMessages"); |
|
AutoMutex autoMut(_entriesMutex); |
|
|
|
/* |
|
Start at index = 1 because _entries[0] is the tickle entry which |
|
never needs to be reset to EMPTY; |
|
*/ |
|
for (Uint32 index = 1; index < _entries.size(); index++) |
{ | { |
monitor_2::_connections.insert_first(connection); |
if (_entries[index].socket == socket) |
} |
|
catch(...) |
|
{ | { |
return false; |
_entries[index].reset(); |
|
_solicitSocketCount--; |
|
break; |
|
} |
} | } |
return true; |
|
|
/* |
|
Dynamic Contraction: |
|
To remove excess entries we will start from the end of the _entries |
|
array and remove all entries with EMPTY status until we find the |
|
first NON EMPTY. This prevents the positions, of the NON EMPTY |
|
entries, from being changed. |
|
*/ |
|
for (Uint32 index = _entries.size() - 1; |
|
(_entries[index].status == MonitorEntry::STATUS_EMPTY) && |
|
(index >= MAX_NUMBER_OF_MONITOR_ENTRIES); |
|
index--) |
|
{ |
|
_entries.remove(index); |
} | } |
| |
|
PEG_METHOD_EXIT(); |
|
} |
| |
PEGASUS_NAMESPACE_END | PEGASUS_NAMESPACE_END |