pegasus/src/Pegasus/Common/Monitor.cpp - diff

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Diff for /pegasus/src/Pegasus/Common/Monitor.cpp between version 1.116.4.2 and 1.141

version 1.116.4.2, 2007/12/14 20:47:55

version 1.141, 2012/12/13 14:38:55

Line 1

//%2006////////////////////////////////////////////////////////////////////////

//%LICENSE////////////////////////////////////////////////////////////////

// Licensed to The Open Group (TOG) under one or more contributor license

// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.

// agreements. Refer to the OpenPegasusNOTICE.txt file distributed with

// this work for additional information regarding copyright ownership.

// IBM Corp.; EMC Corporation, The Open Group.

// Each contributor licenses this file to you under the OpenPegasus Open

// Source License; you may not use this file except in compliance with the

// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.

// License.

// EMC Corporation; VERITAS Software Corporation; The Open Group.

// EMC Corporation; Symantec Corporation; The Open Group.

// 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.

//==============================================================================

// 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.

//////////////////////////////////////////////////////////////////////////

//%/////////////////////////////////////////////////////////////////////////////

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#include "Socket.h"

#include <Pegasus/Common/Tracer.h>

#include <Pegasus/Common/HTTPConnection.h>

#include <Pegasus/Common/HTTPAcceptor.h>

#include <Pegasus/Common/MessageQueueService.h>

#include <Pegasus/Common/Exception.h>

#include "ArrayIterator.h"

#include "HostAddress.h"

#include <errno.h>

PEGASUS_USING_STD;

PEGASUS_NAMESPACE_BEGIN

static AtomicInt _connections(0);

////////////////////////////////////////////////////////////////////////////////

// Monitor

// Tickler

////////////////////////////////////////////////////////////////////////////////

#define MAX_NUMBER_OF_MONITOR_ENTRIES 32

Tickler::Tickler()

Monitor::Monitor()

: _listenSocket(PEGASUS_INVALID_SOCKET),

: _stopConnections(0),

_clientSocket(PEGASUS_INVALID_SOCKET),

_stopConnectionsSem(0),

_serverSocket(PEGASUS_INVALID_SOCKET)

_solicitSocketCount(0),

_tickle_client_socket(-1),

_tickle_server_socket(-1),

_tickle_peer_socket(-1)

{

int numberOfMonitorEntriesToAllocate = MAX_NUMBER_OF_MONITOR_ENTRIES;

try

Socket::initializeInterface();

_entries.reserveCapacity(numberOfMonitorEntriesToAllocate);

// setup the tickler

initializeTickler();

// Start the count at 1 because initilizeTickler()

// has added an entry in the first position of the

// _entries array

for (int i = 1; i < numberOfMonitorEntriesToAllocate; i++)

{

_MonitorEntry entry(0, 0, 0);

_initialize();

_entries.append(entry);

}

catch (...)

{

_uninitialize();

throw;

}

Monitor::~Monitor()

Tickler::~Tickler()

{

uninitializeTickler();

_uninitialize();

Socket::uninitializeInterface();

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4,

"returning from monitor destructor");

}

void Monitor::uninitializeTickler()

{

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, "uninitializing interface");

try

void Tickler::notify()

{

if (_tickle_peer_socket >= 0)

Socket::write(_clientSocket, "\0", 1);

{

Socket::close(_tickle_peer_socket);

}

if (_tickle_client_socket >= 0)

void Tickler::reset()

{

Socket::close(_tickle_client_socket);

// Clear all bytes from the tickle socket

}

char buffer[32];

if (_tickle_server_socket >= 0)

while (Socket::read(_serverSocket, buffer, 32) > 0)

{

Socket::close(_tickle_server_socket);

}

catch (...)

{

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4,

"Failed to close tickle sockets");

}

#if defined(PEGASUS_OS_TYPE_UNIX)

void Monitor::initializeTickler()

// Use an anonymous pipe for the tickle connection.

void Tickler::_initialize()

{

int fds[2];

NOTE: On any errors trying to

setup out tickle connection,

throw an exception/end the server

/* setup the tickle server/listener */

if (pipe(fds) == -1)

// try until the tcpip is restarted

{

// get a socket for the server side

if ((_tickle_server_socket =

Socket::createSocket(PF_INET, SOCK_STREAM, 0)) ==

PEGASUS_INVALID_SOCKET)

{

MessageLoaderParms parms(

"Common.Monitor.TICKLE_CREATE",

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throw Exception(parms);

}

// initialize the address

_serverSocket = fds[0];

memset(&_tickle_server_addr, 0, sizeof(_tickle_server_addr));

_clientSocket = fds[1];

#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM

#pragma convert(37)

Socket::disableBlocking(_serverSocket);

}

#else

// Use an external loopback socket connection to allow the tickle socket to

// be included in the select() array on non-Unix platforms.

void Tickler::_initialize()

{

// Set up the addresses for the listen, client, and server sockets

// based on whether IPv6 is enabled.

Socket::initializeInterface();

# ifdef PEGASUS_ENABLE_IPV6

struct sockaddr_storage listenAddress;

struct sockaddr_storage clientAddress;

struct sockaddr_storage serverAddress;

# else

struct sockaddr_in listenAddress;

struct sockaddr_in clientAddress;

struct sockaddr_in serverAddress;

#endif

_tickle_server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");

#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM

int addressFamily;

#pragma convert(0)

SocketLength addressLength;

memset(&listenAddress, 0, sizeof (listenAddress));

# ifdef PEGASUS_ENABLE_IPV6

if (System::isIPv6StackActive())

{

// Use the IPv6 loopback address for the listen sockets

HostAddress::convertTextToBinary(

HostAddress::AT_IPV6,

"::1",

&reinterpret_cast<struct sockaddr_in6*>(&listenAddress)->sin6_addr);

listenAddress.ss_family = AF_INET6;

reinterpret_cast<struct sockaddr_in6*>(&listenAddress)->sin6_port = 0;

addressFamily = AF_INET6;

addressLength = sizeof(struct sockaddr_in6);

}

else

#endif

_tickle_server_addr.sin_family = PF_INET;

{

_tickle_server_addr.sin_port = 0;

// Use the IPv4 loopback address for the listen sockets

HostAddress::convertTextToBinary(

HostAddress::AT_IPV4,

"127.0.0.1",

&reinterpret_cast<struct sockaddr_in*>(

&listenAddress)->sin_addr.s_addr);

reinterpret_cast<struct sockaddr_in*>(&listenAddress)->sin_family =

AF_INET;

reinterpret_cast<struct sockaddr_in*>(&listenAddress)->sin_port = 0;

addressFamily = AF_INET;

addressLength = sizeof(struct sockaddr_in);

}

SocketLength _addr_size = sizeof(_tickle_server_addr);

// Use the same address for the client socket as the listen socket

clientAddress = listenAddress;

// bind server side to socket

if ((::bind(_tickle_server_socket,

// Set up a listen socket to allow the tickle client and server to connect

reinterpret_cast<struct sockaddr*>(&_tickle_server_addr),

sizeof(_tickle_server_addr))) < 0)

// Create the listen socket

if ((_listenSocket = Socket::createSocket(addressFamily, SOCK_STREAM, 0)) ==

PEGASUS_INVALID_SOCKET)

{

#ifdef PEGASUS_OS_ZOS

MessageLoaderParms parms(

"Common.Monitor.TICKLE_BIND_LONG",

"Common.Monitor.TICKLE_CREATE",

"Received error:$0 while binding the internal socket.",

"Received error number $0 while creating the internal socket.",

strerror(errno));

getSocketError());

#else

throw Exception(parms);

}

// Bind the listen socket to the loopback address

if (::bind(

_listenSocket,

reinterpret_cast<struct sockaddr*>(&listenAddress),

addressLength) < 0)

{

MessageLoaderParms parms(

"Common.Monitor.TICKLE_BIND",

"Received error number $0 while binding the internal socket.",

getSocketError());

#endif

throw Exception(parms);

}

// tell the kernel we are a server

// Listen for a connection from the tickle client

if ((::listen(_tickle_server_socket, 3)) < 0)

if ((::listen(_listenSocket, 3)) < 0)

{

MessageLoaderParms parms(

"Common.Monitor.TICKLE_LISTEN",

"Received error number $0 while listening to the internal "

"Received error number $0 while listening to the internal socket.",

"socket.",

getSocketError());

throw Exception(parms);

}

// make sure we have the correct socket for our server

// Verify we have the correct listen socket

SocketLength tmpAddressLength = addressLength;

int sock = ::getsockname(

_tickle_server_socket,

_listenSocket,

reinterpret_cast<struct sockaddr*>(&_tickle_server_addr),

reinterpret_cast<struct sockaddr*>(&listenAddress),

&_addr_size);

&tmpAddressLength);

if (sock < 0)

{

MessageLoaderParms parms(

"Common.Monitor.TICKLE_SOCKNAME",

"Received error number $0 while getting the internal socket "

"Received error number $0 while getting the internal socket name.",

"name.",

getSocketError());

throw Exception(parms);

}

/* set up the tickle client/connector */

// Set up the client side of the tickle connection.

// get a socket for our tickle client

// Create the client socket

if ((_tickle_client_socket =

if ((_clientSocket = Socket::createSocket(addressFamily, SOCK_STREAM, 0)) ==

Socket::createSocket(PF_INET, SOCK_STREAM, 0)) ==

PEGASUS_INVALID_SOCKET)

{

MessageLoaderParms parms(

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throw Exception(parms);

}

// setup the address of the client

// Bind the client socket to the loopback address

memset(&_tickle_client_addr, 0, sizeof(_tickle_client_addr));

if (::bind(

#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM

_clientSocket,

# pragma convert(37)

reinterpret_cast<struct sockaddr*>(&clientAddress),

#endif

addressLength) < 0)

_tickle_client_addr.sin_addr.s_addr = inet_addr("127.0.0.1");

#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM

# pragma convert(0)

#endif

_tickle_client_addr.sin_family = PF_INET;

_tickle_client_addr.sin_port = 0;

// bind socket to client side

if ((::bind(_tickle_client_socket,

reinterpret_cast<struct sockaddr*>(&_tickle_client_addr),

sizeof(_tickle_client_addr))) < 0)

{

MessageLoaderParms parms(

"Common.Monitor.TICKLE_CLIENT_BIND",

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throw Exception(parms);

}

// connect to server side

// Connect the client socket to the listen socket address

if ((::connect(_tickle_client_socket,

if (::connect(

reinterpret_cast<struct sockaddr*>(&_tickle_server_addr),

_clientSocket,

sizeof(_tickle_server_addr))) < 0)

reinterpret_cast<struct sockaddr*>(&listenAddress),

addressLength) < 0)

{

MessageLoaderParms parms(

"Common.Monitor.TICKLE_CLIENT_CONNECT",

"Received error number $0 while connecting the internal "

"Received error number $0 while connecting the internal client "

"client socket.",

"socket.",

getSocketError());

throw Exception(parms);

}

/* set up the slave connection */

memset(&_tickle_peer_addr, 0, sizeof(_tickle_peer_addr));

// Set up the server side of the tickle connection.

SocketLength peer_size = sizeof(_tickle_peer_addr);

Threads::sleep(1);

tmpAddressLength = addressLength;

// this call may fail, we will try a max of 20 times to establish

// this peer connection

// Accept the client socket connection.

if ((_tickle_peer_socket = ::accept(_tickle_server_socket,

_serverSocket = ::accept(

reinterpret_cast<struct sockaddr*>(&_tickle_peer_addr),

_listenSocket,

&peer_size)) < 0)

reinterpret_cast<struct sockaddr*>(&serverAddress),

{

&tmpAddressLength);

if (_tickle_peer_socket == PEGASUS_SOCKET_ERROR &&

getSocketError() == PEGASUS_NETWORK_TRYAGAIN)

if (_serverSocket == PEGASUS_SOCKET_ERROR)

{

int retries = 0;

{

Threads::sleep(1);

_tickle_peer_socket = ::accept(

_tickle_server_socket,

reinterpret_cast<struct sockaddr*>(&_tickle_peer_addr),

&peer_size);

retries++;

} while (_tickle_peer_socket == PEGASUS_SOCKET_ERROR &&

getSocketError() == PEGASUS_NETWORK_TRYAGAIN &&

retries < 20);

}

// TCP/IP is down, destroy sockets and retry again.

if (_tickle_peer_socket == PEGASUS_SOCKET_ERROR &&

getSocketError() == PEGASUS_NETWORK_TCPIP_STOPPED)

{

// destroy everything

uninitializeTickler();

// retry again.

continue;

}

if (_tickle_peer_socket == PEGASUS_SOCKET_ERROR)

{

MessageLoaderParms parms(

"Common.Monitor.TICKLE_ACCEPT",

"Received error number $0 while accepting the internal "

"Received error number $0 while accepting the internal socket "

"socket connection.",

"connection.",

getSocketError());

throw Exception(parms);

}

else

{

// socket is ok

// Close the listen socket and make the other sockets non-blocking

break;

Socket::close(_listenSocket);

Socket::disableBlocking(_serverSocket);

Socket::disableBlocking(_clientSocket);

}

} while (1); // try until TCP/IP is restarted

Socket::disableBlocking(_tickle_peer_socket);

#endif

Socket::disableBlocking(_tickle_client_socket);

// add the tickler to the list of entries to be monitored and set to

void Tickler::_uninitialize()

// IDLE because Monitor only

{

// checks entries with IDLE state for events

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, "uninitializing interface");

_MonitorEntry entry(_tickle_peer_socket, 1, INTERNAL);

entry._status = _MonitorEntry::IDLE;

// is the tickler initalized as first socket on startup ?

try

if (_entries.size()==0)

{

// if yes, append a new entry

Socket::close(_serverSocket);

_entries.append(entry);

Socket::close(_clientSocket);

Socket::close(_listenSocket);

}

else

catch (...)

{

// if not, overwrite the tickler entry with new socket

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL2,

_entries[0]=entry;

"Failed to close tickle sockets");

}

Socket::uninitializeInterface();

}

void Monitor::tickle()

////////////////////////////////////////////////////////////////////////////////

// Monitor

////////////////////////////////////////////////////////////////////////////////

#define MAX_NUMBER_OF_MONITOR_ENTRIES 32

Monitor::Monitor()

: _stopConnections(0),

_stopConnectionsSem(0),

_solicitSocketCount(0)

{

static char _buffer[] =

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.getReadHandle(),

MonitorEntry::STATUS_IDLE,

MonitorEntry::TYPE_TICKLER));

// Start the count at 1 because _entries[0] is the Tickler

for (int i = 1; i < numberOfMonitorEntriesToAllocate; i++)

{

_entries.append(MonitorEntry());

}

Monitor::~Monitor()

{

'0','0'

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4,

};

"returning from monitor destructor");

}

AutoMutex autoMutex(_tickle_mutex);

void Monitor::tickle()

Socket::write(_tickle_client_socket,&_buffer, 2);

{

_tickler.notify();

}

void Monitor::setState( Uint32 index, _MonitorEntry::entry_status status )

void Monitor::setState(

Uint32 index,

MonitorEntry::Status status)

{

AutoMutex autoEntryMutex(_entriesMutex);

// Set the state to requested state

_entries[index]._status = status;

_entries[index].status = status;

}

void Monitor::run(Uint32 milliseconds)

{

int i = 0;

struct timeval tv = {milliseconds/1000, milliseconds%1000*1000};

fd_set fdread;

FD_ZERO(&fdread);

AutoMutex autoEntryMutex(_entry_mut);

AutoMutex autoEntryMutex(_entriesMutex);

ArrayIterator<_MonitorEntry> entries(_entries);

ArrayIterator<MonitorEntry> entries(_entries);

// Check the stopConnections flag. If set, clear the Acceptor monitor

// entries

if (_stopConnections.get() == 1)

{

for ( int indx = 0; indx < (int)entries.size(); indx++)

for (Uint32 indx = 0; indx < entries.size(); indx++)

{

if (entries[indx]._type == Monitor::ACCEPTOR)

if (entries[indx].type == MonitorEntry::TYPE_ACCEPTOR)

{

if ( entries[indx]._status.get() != _MonitorEntry::EMPTY)

if (entries[indx].status != MonitorEntry::STATUS_EMPTY)

{

if ( entries[indx]._status.get() == _MonitorEntry::IDLE ||

if (entries[indx].status == MonitorEntry::STATUS_IDLE ||

entries[indx]._status.get() == _MonitorEntry::DYING )

entries[indx].status == MonitorEntry::STATUS_DYING)

{

// remove the entry

entries[indx]._status = _MonitorEntry::EMPTY;

entries[indx].status = MonitorEntry::STATUS_EMPTY;

}

else

{

// set status to DYING

entries[indx]._status = _MonitorEntry::DYING;

entries[indx].status = MonitorEntry::STATUS_DYING;

}

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Line 413

_stopConnectionsSem.signal();

}

for (int indx = 0; indx < (int)entries.size(); indx++)

for (Uint32 indx = 0; indx < entries.size(); indx++)

{

const _MonitorEntry &entry = entries[indx];

const MonitorEntry& entry = entries[indx];

if ((entry._status.get() == _MonitorEntry::DYING) &&

(entry._type == Monitor::CONNECTION))

if ((entry.status == MonitorEntry::STATUS_DYING) &&

(entry.type == MonitorEntry::TYPE_CONNECTION))

{

MessageQueue *q = MessageQueue::lookup(entry.queueId);

PEGASUS_ASSERT(q != 0);

Line 415

Line 443

continue;

}

h._connectionClosePending = false;

MessageQueue &o = h.get_owner();

HTTPAcceptor &o = h.getOwningAcceptor();

Message* message= new CloseConnectionMessage(entry.socket);

message->dest = o.getQueueId();

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Line 459

// unlocked will not result in an ArrayIndexOutOfBounds

// exception.

_entry_mut.unlock();

_entriesMutex.unlock();

o.enqueue(message);

_entry_mut.lock();

_entriesMutex.lock();

// After enqueue a message and the autoEntryMutex has been

// released and locked again, the array of _entries can be

Line 452

Line 480

because we have to traverse the entire array.

SocketHandle maxSocketCurrentPass = 0;

for (int indx = 0; indx < (int)entries.size(); indx++)

for (Uint32 indx = 0; indx < entries.size(); indx++)

{

if (maxSocketCurrentPass < entries[indx].socket)

maxSocketCurrentPass = entries[indx].socket;

if (entries[indx]._status.get() == _MonitorEntry::IDLE)

if (entries[indx].status == MonitorEntry::STATUS_IDLE)

{

_idleEntries++;

FD_SET(entries[indx].socket, &fdread);

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Line 498

maxSocketCurrentPass++;

_entry_mut.unlock();

_entriesMutex.unlock();

// The first argument to select() is ignored on Windows and it is not

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Line 510

#else

int events = select(maxSocketCurrentPass, &fdread, NULL, NULL, &tv);

#endif

_entry_mut.lock();

int selectErrno = getSocketError();

_entriesMutex.lock();

struct timeval timeNow;

Time::gettimeofday(&timeNow);

Line 494

Line 524

if (events == PEGASUS_SOCKET_ERROR)

{

PEG_TRACE((TRC_HTTP, Tracer::LEVEL4,

PEG_TRACE((TRC_HTTP, Tracer::LEVEL1,

"Monitor::run - errorno = %d has occurred on select.", errno));

"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.

PEGASUS_ASSERT(errno != EBADF);

PEGASUS_ASSERT(selectErrno != EBADF);

}

else if (events)

{

Line 509

Line 539

"Monitor::run select event received events = %d, monitoring %d "

"idle entries",

events, _idleEntries));

for (int indx = 0; indx < (int)entries.size(); indx++)

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.get() == _MonitorEntry::IDLE) &&

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));

PEGASUS_ASSERT(q !=0);

try

{

if (entries[indx]._type == Monitor::CONNECTION)

if (entries[indx].type == MonitorEntry::TYPE_CONNECTION)

{

PEG_TRACE((TRC_HTTP, Tracer::LEVEL4,

"entries[indx].type for indx = %d is "

"entries[%d].type is TYPE_CONNECTION",

"Monitor::CONNECTION",

indx));

HTTPConnection *dst =

reinterpret_cast<HTTPConnection *>(q);

dst->_entry_index = indx;

Line 547

Line 577

if (!dst->closeConnectionOnTimeout(&timeNow))

{

PEG_TRACE((TRC_HTTP, Tracer::LEVEL4,

"Monitor::_dispatch: entering run() for "

"Entering HTTPConnection::run() for "

"indx = %d, queueId = %d, q = %p",

dst->_entry_index,

indx, entries[indx].queueId, q));

dst->_monitor->

_entries[dst->_entry_index].queueId,

dst));

try

{

dst->run(1);

dst->run();

}

catch (...)

{

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4,

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL1,

"Monitor::_dispatch: exception received");

"Caught exception from "

"HTTPConnection::run()");

}

PEG_TRACE((TRC_HTTP, Tracer::LEVEL4,

"Monitor::_dispatch: exited run() for index %d",

dst->_entry_index));

}

else if (entries[indx]._type == Monitor::INTERNAL)

{

// set ourself to BUSY,

// read the data

// and set ourself back to IDLE

entries[indx]._status = _MonitorEntry::BUSY;

static char buffer[2];

Sint32 amt =

Socket::read(entries[indx].socket,&buffer, 2);

if (amt == PEGASUS_SOCKET_ERROR &&

getSocketError() == PEGASUS_NETWORK_TCPIP_STOPPED)

{

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4,

"Monitor::run: Tickler socket got an IO error. "

"Exited HTTPConnection::run()");

"Going to re-create Socket and wait for "

"TCP/IP restart.");

uninitializeTickler();

initializeTickler();

}

else

{

entries[indx]._status = _MonitorEntry::IDLE;

}

else if (entries[indx].type == MonitorEntry::TYPE_TICKLER)

{

_tickler.reset();

}

else

{

Line 600

Line 605

"Non-connection entry, indx = %d, has been "

"received.",

indx));

int events = 0;

events |= SocketMessage::READ;

Message* msg = new SocketMessage(

entries[indx].socket, events);

entries[indx].socket, SocketMessage::READ);

entries[indx]._status = _MonitorEntry::BUSY;

entries[indx].status = MonitorEntry::STATUS_BUSY;

_entry_mut.unlock();

_entriesMutex.unlock();

q->enqueue(msg);

_entry_mut.lock();

_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

// entries can be changed. The ArrayIterator has to be

// reset with the original _entries

// reset with the latest _entries.

entries.reset(_entries);

entries[indx]._status = _MonitorEntry::IDLE;

entries[indx].status = MonitorEntry::STATUS_IDLE;

}

catch (...)

Line 624

Line 627

// 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.get() == _MonitorEntry::IDLE) &&

else if ((entries[indx].status == MonitorEntry::STATUS_IDLE) &&

entries[indx]._type == Monitor::CONNECTION)

entries[indx].type == MonitorEntry::TYPE_CONNECTION)

{

MessageQueue *q = MessageQueue::lookup(entries[indx].queueId);

PEGASUS_ASSERT(q != 0);

HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q);

dst->_entry_index = indx;

dst->closeConnectionOnTimeout(&timeNow);

Line 638

Line 643

// to check if there are any pending SSL handshakes that have timed out.

else

{

for (int indx = 0; indx < (int)entries.size(); indx++)

for (Uint32 indx = 0; indx < entries.size(); indx++)

{

if ((entries[indx]._status.get() == _MonitorEntry::IDLE) &&

if ((entries[indx].status == MonitorEntry::STATUS_IDLE) &&

entries[indx]._type == Monitor::CONNECTION)

entries[indx].type == MonitorEntry::TYPE_CONNECTION)

{

MessageQueue *q = MessageQueue::lookup(entries[indx].queueId);

PEGASUS_ASSERT(q != 0);

HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q);

dst->_entry_index = indx;

dst->closeConnectionOnTimeout(&timeNow);

Line 673

Line 679

int Monitor::solicitSocketMessages(

SocketHandle socket,

Uint32 events,

Uint32 queueId,

int type)

Uint32 type)

{

PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solicitSocketMessages");

AutoMutex autoMut(_entry_mut);

AutoMutex autoMut(_entriesMutex);

// Check to see if we need to dynamically grow the _entries array

// We always want the _entries array to 2 bigger than the

// We always want the _entries array to be 2 bigger than the

// current connections requested

_solicitSocketCount++; // bump the count

int size = (int)_entries.size();

if ((int)_solicitSocketCount >= (size-1))

for (Uint32 i = _entries.size(); i < _solicitSocketCount + 1; i++)

{

for (int i = 0; i < ((int)_solicitSocketCount - (size-1)); i++)

{

_MonitorEntry entry(0, 0, 0);

_entries.append(MonitorEntry());

_entries.append(entry);

}

int index;

for (Uint32 index = 1; index < _entries.size(); index++)

for (index = 1; index < (int)_entries.size(); index++)

{

try

{

if (_entries[index]._status.get() == _MonitorEntry::EMPTY)

if (_entries[index].status == MonitorEntry::STATUS_EMPTY)

{

_entries[index].socket = socket;

_entries[index].queueId = queueId;

_entries[index]._type = type;

_entries[index].type = type;

_entries[index]._status = _MonitorEntry::IDLE;

_entries[index].status = MonitorEntry::STATUS_IDLE;

return index;

PEG_METHOD_EXIT();

return (int)index;

}

catch (...)

Line 721

Line 723

void Monitor::unsolicitSocketMessages(SocketHandle socket)

{

PEG_METHOD_ENTER(TRC_HTTP, "Monitor::unsolicitSocketMessages");

AutoMutex autoMut(_entry_mut);

AutoMutex autoMut(_entriesMutex);

Start at index = 1 because _entries[0] is the tickle entry which

never needs to be EMPTY;

never needs to be reset to EMPTY;

unsigned int index;

for (Uint32 index = 1; index < _entries.size(); index++)

for (index = 1; index < _entries.size(); index++)

{

if (_entries[index].socket == socket)

{

_entries[index]._status = _MonitorEntry::EMPTY;

_entries[index].reset();

_entries[index].socket = PEGASUS_INVALID_SOCKET;

_solicitSocketCount--;

break;

}

Line 746

first NON EMPTY. This prevents the positions, of the NON EMPTY

entries, from being changed.

index = _entries.size() - 1;

for (Uint32 index = _entries.size() - 1;

while (_entries[index]._status.get() == _MonitorEntry::EMPTY)

(_entries[index].status == MonitorEntry::STATUS_EMPTY) &&

(index >= MAX_NUMBER_OF_MONITOR_ENTRIES);

index--)

{

if (_entries.size() > MAX_NUMBER_OF_MONITOR_ENTRIES)

_entries.remove(index);

index--;

}

PEG_METHOD_EXIT();

}

// Note: this is no longer called with PEP 183.

ThreadReturnType PEGASUS_THREAD_CDECL Monitor::_dispatch(void* parm)

{

HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(parm);

PEG_TRACE((TRC_HTTP, Tracer::LEVEL4,

"Monitor::_dispatch: entering run() for indx = %d, queueId = %d, "

"q = %p",

dst->_entry_index,

dst->_monitor->_entries[dst->_entry_index].queueId,

dst));

try

{

dst->run(1);

}

catch (...)

{

PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4,

"Monitor::_dispatch: exception received");

}

PEG_TRACE((TRC_HTTP, Tracer::LEVEL4,

"Monitor::_dispatch: exited run() for index %d", dst->_entry_index));

PEGASUS_ASSERT(dst->_monitor->_entries[dst->_entry_index]._status.get() ==

_MonitorEntry::BUSY);

// Once the HTTPConnection thread has set the status value to either

PEG_METHOD_EXIT();

// Monitor::DYING or Monitor::IDLE, it has returned control of the

// connection to the Monitor. It is no longer permissible to access the

// connection or the entry in the _entries table.

if (dst->_connectionClosePending)

{

dst->_monitor->_entries[dst->_entry_index]._status =

_MonitorEntry::DYING;

}

else

{

dst->_monitor->_entries[dst->_entry_index]._status =

_MonitorEntry::IDLE;

}

return 0;

}

PEGASUS_NAMESPACE_END

Legend:

Removed from v.1.116.4.2
changed lines
	Added in v.1.141

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