version 1.28, 2002/07/19 23:00:25
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version 1.121.4.5, 2008/03/26 19:21:44
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//%///////////////////////////////////////////////////////////////////////////// |
//%2006//////////////////////////////////////////////////////////////////////// |
// | // |
// Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM, |
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development |
// The Open Group, Tivoli Systems |
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. |
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// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// 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: |
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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> |
#include <cstring> | #include <cstring> |
#include "Monitor.h" | #include "Monitor.h" |
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#include "Socket.h" | #include "Socket.h" |
#include <Pegasus/Common/Tracer.h> | #include <Pegasus/Common/Tracer.h> |
#include <Pegasus/Common/HTTPConnection.h> | #include <Pegasus/Common/HTTPConnection.h> |
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#include <Pegasus/Common/MessageQueueService.h> |
#ifdef PEGASUS_OS_TYPE_WINDOWS |
#include <Pegasus/Common/Exception.h> |
# if defined(FD_SETSIZE) && FD_SETSIZE != 1024 |
#include "ArrayIterator.h" |
# error "FD_SETSIZE was not set to 1024 prior to the last inclusion \ |
#include "HostAddress.h" |
of <winsock.h>. It may have been indirectly included (e.g., by including \ |
#include <errno.h> |
<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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# include <unistd.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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//////////////////////////////////////////////////////////////////////////////// |
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// |
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// Tickler |
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// |
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//////////////////////////////////////////////////////////////////////////////// |
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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) |
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{ |
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try |
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{ |
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_initialize(); |
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} |
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catch (...) |
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{ |
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_uninitialize(); |
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throw; |
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} |
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} |
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static AtomicInt _connections = 0; |
Tickler::~Tickler() |
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{ |
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_uninitialize(); |
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} |
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void Tickler::notify() |
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{ |
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Socket::write(_clientSocket, "\0", 1); |
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} |
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static struct timeval create_time = {0, 1}; |
void Tickler::reset() |
static struct timeval destroy_time = {15, 0}; |
{ |
static struct timeval deadlock_time = {0, 0}; |
// Clear all bytes from the tickle socket |
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char buffer[32]; |
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while (Socket::read(_serverSocket, buffer, 32) > 0) |
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{ |
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} |
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} |
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//////////////////////////////////////////////////////////////////////////////// |
#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() |
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{ |
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int fds[2]; |
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if (pipe(fds) == -1) |
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{ |
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MessageLoaderParms parms( |
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"Common.Monitor.TICKLE_CREATE", |
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"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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} |
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_serverSocket = fds[0]; |
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_clientSocket = fds[1]; |
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Socket::disableBlocking(_serverSocket); |
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} |
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#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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{ |
// | // |
// MonitorRep |
// 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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struct MonitorRep |
Socket::initializeInterface(); |
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# ifdef PEGASUS_ENABLE_IPV6 |
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struct sockaddr_storage listenAddress; |
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struct sockaddr_storage clientAddress; |
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struct sockaddr_storage serverAddress; |
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# else |
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struct sockaddr_in listenAddress; |
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struct sockaddr_in clientAddress; |
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struct sockaddr_in serverAddress; |
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# endif |
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int addressFamily; |
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SocketLength addressLength; |
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memset(&listenAddress, 0, sizeof (listenAddress)); |
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# ifdef PEGASUS_ENABLE_IPV6 |
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if (System::isIPv6StackActive()) |
{ | { |
fd_set rd_fd_set; |
// Use the IPv6 loopback address for the listen sockets |
fd_set wr_fd_set; |
HostAddress::convertTextToBinary( |
fd_set ex_fd_set; |
HostAddress::AT_IPV6, |
fd_set active_rd_fd_set; |
"::1", |
fd_set active_wr_fd_set; |
&reinterpret_cast<struct sockaddr_in6*>(&listenAddress)->sin6_addr); |
fd_set active_ex_fd_set; |
listenAddress.ss_family = AF_INET6; |
}; |
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); |
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} |
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else |
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# endif |
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{ |
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// Use the IPv4 loopback address for the listen sockets |
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HostAddress::convertTextToBinary( |
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HostAddress::AT_IPV4, |
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"127.0.0.1", |
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&reinterpret_cast<struct sockaddr_in*>( |
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&listenAddress)->sin_addr.s_addr); |
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reinterpret_cast<struct sockaddr_in*>(&listenAddress)->sin_family = |
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AF_INET; |
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reinterpret_cast<struct sockaddr_in*>(&listenAddress)->sin_port = 0; |
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addressFamily = AF_INET; |
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addressLength = sizeof(struct sockaddr_in); |
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} |
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// Use the same address for the client socket as the listen socket |
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clientAddress = listenAddress; |
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//////////////////////////////////////////////////////////////////////////////// |
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// | // |
// Monitor |
// Set up a listen socket to allow the tickle client and server to connect |
// | // |
//////////////////////////////////////////////////////////////////////////////// |
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Monitor::Monitor() |
// Create the listen socket |
: _module_handle(0), _controller(0), _async(false) |
if ((_listenSocket = Socket::createSocket(addressFamily, SOCK_STREAM, 0)) == |
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PEGASUS_INVALID_SOCKET) |
{ | { |
Socket::initializeInterface(); |
MessageLoaderParms parms( |
_rep = 0; |
"Common.Monitor.TICKLE_CREATE", |
_entries.reserveCapacity(128); |
"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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} |
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// Bind the listen socket to the loopback address |
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if (::bind( |
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_listenSocket, |
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reinterpret_cast<struct sockaddr*>(&listenAddress), |
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addressLength) < 0) |
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{ |
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MessageLoaderParms parms( |
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"Common.Monitor.TICKLE_BIND", |
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"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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Monitor::Monitor(Boolean async) |
// Listen for a connection from the tickle client |
: _module_handle(0), _controller(0), _async(async) |
if ((::listen(_listenSocket, 3)) < 0) |
{ | { |
Socket::initializeInterface(); |
MessageLoaderParms parms( |
_rep = 0; |
"Common.Monitor.TICKLE_LISTEN", |
_entries.reserveCapacity(128); |
"Received error number $0 while listening to the internal socket.", |
if( _async == true ) |
getSocketError()); |
{ |
throw Exception(parms); |
_thread_pool = new ThreadPool(0, |
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"Monitor", |
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0, |
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0, |
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create_time, |
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destroy_time, |
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deadlock_time); |
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} | } |
else |
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_thread_pool = 0; |
// Verify we have the correct listen socket |
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SocketLength tmpAddressLength = addressLength; |
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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) |
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{ |
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MessageLoaderParms parms( |
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"Common.Monitor.TICKLE_SOCKNAME", |
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"Received error number $0 while getting the internal socket name.", |
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getSocketError()); |
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throw Exception(parms); |
} | } |
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Monitor::~Monitor() |
// |
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// Set up the client side of the tickle connection. |
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// |
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// Create the client socket |
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if ((_clientSocket = Socket::createSocket(addressFamily, SOCK_STREAM, 0)) == |
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PEGASUS_INVALID_SOCKET) |
{ | { |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
MessageLoaderParms parms( |
"deregistering with module controller"); |
"Common.Monitor.TICKLE_CLIENT_CREATE", |
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"Received error number $0 while creating 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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if(_module_handle != NULL) |
// 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) |
{ | { |
_controller->deregister_module(PEGASUS_MODULENAME_MONITOR); |
MessageLoaderParms parms( |
_controller = 0; |
"Common.Monitor.TICKLE_CLIENT_BIND", |
delete _module_handle; |
"Received error number $0 while binding the internal client " |
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"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"); |
// Connect the client socket to the listen socket address |
Socket::uninitializeInterface(); |
if (::connect( |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
_clientSocket, |
"returning from monitor destructor"); |
reinterpret_cast<struct sockaddr*>(&listenAddress), |
if(_async == true) |
addressLength) < 0) |
delete _thread_pool; |
{ |
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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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// Set up the server side of the tickle connection. |
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// |
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tmpAddressLength = addressLength; |
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// Accept the client socket connection. |
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_serverSocket = ::accept( |
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_listenSocket, |
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reinterpret_cast<struct sockaddr*>(&serverAddress), |
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&tmpAddressLength); |
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int Monitor::kill_idle_threads() |
if (_serverSocket == PEGASUS_SOCKET_ERROR) |
{ | { |
static struct timeval now, last; |
MessageLoaderParms parms( |
gettimeofday(&now, NULL); |
"Common.Monitor.TICKLE_ACCEPT", |
int dead_threads = 0; |
"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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} |
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// |
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// Close the listen socket and make the other sockets non-blocking |
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// |
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Socket::close(_listenSocket); |
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_listenSocket = PEGASUS_INVALID_SOCKET; |
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Socket::disableBlocking(_serverSocket); |
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Socket::disableBlocking(_clientSocket); |
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} |
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if( now.tv_sec - last.tv_sec > 0 ) |
#endif |
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void Tickler::_uninitialize() |
{ | { |
gettimeofday(&last, NULL); |
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, "uninitializing interface"); |
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try | try |
{ | { |
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if (_serverSocket != PEGASUS_INVALID_SOCKET) |
dead_threads = _thread_pool->kill_dead_threads(); |
{ |
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Socket::close(_serverSocket); |
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_serverSocket = PEGASUS_INVALID_SOCKET; |
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} |
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if (_clientSocket != PEGASUS_INVALID_SOCKET) |
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{ |
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Socket::close(_clientSocket); |
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_clientSocket = PEGASUS_INVALID_SOCKET; |
} | } |
catch(IPCException& ) |
if (_listenSocket != PEGASUS_INVALID_SOCKET) |
{ | { |
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Socket::close(_listenSocket); |
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_listenSocket = PEGASUS_INVALID_SOCKET; |
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} |
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} |
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catch (...) |
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{ |
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PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, |
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"Failed to close tickle sockets"); |
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} |
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Socket::uninitializeInterface(); |
} | } |
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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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: _stopConnections(0), |
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_stopConnectionsSem(0), |
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_solicitSocketCount(0) |
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{ |
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int numberOfMonitorEntriesToAllocate = MAX_NUMBER_OF_MONITOR_ENTRIES; |
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_entries.reserveCapacity(numberOfMonitorEntriesToAllocate); |
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// Create a MonitorEntry for the Tickler and set its state to IDLE so the |
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// Monitor will watch for its events. |
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_MonitorEntry entry(_tickler.getReadHandle(), 1, INTERNAL); |
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entry._status = _MonitorEntry::IDLE; |
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_entries.append(entry); |
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// Start the count at 1 because _entries[0] is the Tickler |
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for (int i = 1; i < numberOfMonitorEntriesToAllocate; i++) |
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{ |
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_MonitorEntry entry(0, 0, 0); |
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_entries.append(entry); |
} | } |
return dead_threads; |
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} | } |
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Monitor::~Monitor() |
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{ |
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PEG_TRACE_CSTRING(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) |
void Monitor::tickle() |
{ | { |
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_tickler.notify(); |
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} |
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void Monitor::setState( |
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Uint32 index, |
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_MonitorEntry::entry_status status) |
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{ |
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AutoMutex autoEntryMutex(_entry_mut); |
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// Set the state to requested state |
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_entries[index]._status = status; |
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} |
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Boolean handled_events = false; |
void Monitor::run(Uint32 milliseconds) |
int i = 0; |
{ |
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struct timeval tv = {milliseconds/1000, milliseconds%1000*1000}; |
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struct timeval tv = {0,1}; |
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fd_set fdread; | fd_set fdread; |
FD_ZERO(&fdread); | FD_ZERO(&fdread); |
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_entries_mut.lock(pegasus_thread_self()); |
AutoMutex autoEntryMutex(_entry_mut); |
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ArrayIterator<_MonitorEntry> entries(_entries); |
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for( int indx = 0; indx < (int)_entries.size(); indx++) |
// Check the stopConnections flag. If set, clear the Acceptor monitor |
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// entries |
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if (_stopConnections.get() == 1) |
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{ |
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for ( int indx = 0; indx < (int)entries.size(); indx++) |
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{ |
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if (entries[indx]._type == Monitor::ACCEPTOR) |
{ | { |
if(_entries[indx]._status == _MonitorEntry::IDLE) |
if ( entries[indx]._status.get() != _MonitorEntry::EMPTY) |
{ | { |
FD_SET(_entries[indx].socket, &fdread); |
if ( entries[indx]._status.get() == _MonitorEntry::IDLE || |
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entries[indx]._status.get() == _MonitorEntry::DYING ) |
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{ |
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// remove the entry |
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entries[indx]._status = _MonitorEntry::EMPTY; |
} | } |
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else |
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{ |
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// set status to DYING |
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entries[indx]._status = _MonitorEntry::DYING; |
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} |
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} |
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} |
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} |
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_stopConnections = 0; |
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_stopConnectionsSem.signal(); |
} | } |
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int events = select(FD_SETSIZE, &fdread, NULL, NULL, &tv); |
for (int indx = 0; indx < (int)entries.size(); indx++) |
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#ifdef PEGASUS_OS_TYPE_WINDOWS |
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if(events && events != SOCKET_ERROR ) |
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#else |
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if(events && events != -1 ) |
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#endif |
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{ | { |
for( int indx = 0; indx < (int)_entries.size(); indx++) |
const _MonitorEntry &entry = entries[indx]; |
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if ((entry._status.get() == _MonitorEntry::DYING) && |
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(entry._type == Monitor::CONNECTION)) |
{ | { |
if(FD_ISSET(_entries[indx].socket, &fdread)) |
MessageQueue *q = MessageQueue::lookup(entry.queueId); |
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PEGASUS_ASSERT(q != 0); |
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HTTPConnection &h = *static_cast<HTTPConnection *>(q); |
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if (h._connectionClosePending == false) |
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continue; |
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// NOTE: do not attempt to delete while there are pending responses |
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// coming thru. The last response to come thru after a |
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// _connectionClosePending will reset _responsePending to false |
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// and then cause the monitor to rerun this code and clean up. |
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// (see HTTPConnection.cpp) |
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if (h._responsePending == true) |
{ | { |
MessageQueue *q = MessageQueue::lookup(_entries[indx].queueId); |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
if(q == 0) |
"Monitor::run - Ignoring connection delete request " |
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"because responses are still pending. " |
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"connection=0x%p, socket=%d\n", |
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(void *)&h, h.getSocket())); |
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continue; |
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} |
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h._connectionClosePending = false; |
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MessageQueue &o = h.get_owner(); |
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Message* message= new CloseConnectionMessage(entry.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(); |
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o.enqueue(message); |
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_entry_mut.lock(); |
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// After enqueue a message and the autoEntryMutex has been |
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// released and locked again, the array of _entries can be |
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// changed. The ArrayIterator has be reset with the original |
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// _entries. |
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entries.reset(_entries); |
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} |
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} |
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Uint32 _idleEntries = 0; |
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/* |
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We will keep track of the maximum socket number and pass this value |
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to the kernel as a parameter to SELECT. This loop seems like a good |
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place to calculate the max file descriptor (maximum socket number) |
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because we have to traverse the entire array. |
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*/ |
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SocketHandle maxSocketCurrentPass = 0; |
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for (int indx = 0; indx < (int)entries.size(); indx++) |
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{ |
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if (maxSocketCurrentPass < entries[indx].socket) |
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maxSocketCurrentPass = entries[indx].socket; |
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if (entries[indx]._status.get() == _MonitorEntry::IDLE) |
{ | { |
_entries[indx]._status = _MonitorEntry::EMPTY; |
_idleEntries++; |
_entries_mut.unlock(); |
FD_SET(entries[indx].socket, &fdread); |
return true; |
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} | } |
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} |
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/* |
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Add 1 then assign maxSocket accordingly. We add 1 to account for |
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descriptors starting at 0. |
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*/ |
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maxSocketCurrentPass++; |
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_entry_mut.unlock(); |
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// |
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// The first argument to select() is ignored on Windows and it is not |
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// a socket value. The original code assumed that the number of sockets |
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// and a socket value have the same type. On Windows they do not. |
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// |
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#ifdef PEGASUS_OS_TYPE_WINDOWS |
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int events = select(0, &fdread, NULL, NULL, &tv); |
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#else |
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int events = select(maxSocketCurrentPass, &fdread, NULL, NULL, &tv); |
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#endif |
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_entry_mut.lock(); |
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struct timeval timeNow; |
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Time::gettimeofday(&timeNow); |
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// After enqueue a message and the autoEntryMutex has been released and |
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// locked again, the array of _entries can be changed. The ArrayIterator |
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// has be reset with the original _entries |
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entries.reset(_entries); |
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if (events == PEGASUS_SOCKET_ERROR) |
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{ |
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PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::run - errorno = %d has occurred on select.", errno)); |
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// The EBADF error indicates that one or more or the file |
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// descriptions was not valid. This could indicate that |
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// the entries structure has been corrupted or that |
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// we have a synchronization error. |
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PEGASUS_ASSERT(errno != EBADF); |
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} |
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else if (events) |
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{ |
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PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::run select event received events = %d, monitoring %d " |
|
"idle entries", |
|
events, _idleEntries)); |
|
for (int indx = 0; indx < (int)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) && |
|
(FD_ISSET(entries[indx].socket, &fdread))) |
|
{ |
|
MessageQueue *q = MessageQueue::lookup(entries[indx].queueId); |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"Monitor::run indx = %d, queueId = %d, q = %p", |
|
indx, entries[indx].queueId, q)); |
|
PEGASUS_ASSERT(q !=0); |
| |
if(_entries[indx]._type == Monitor::CONNECTION) |
try |
{ | { |
static_cast<HTTPConnection *>(q)->_entry_index = indx; |
if (entries[indx]._type == Monitor::CONNECTION) |
if(static_cast<HTTPConnection *>(q)->_dying.value() > 0 ) |
|
{ | { |
_entries[indx]._status = _MonitorEntry::DYING; |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"entries[indx].type for indx = %d is " |
|
"Monitor::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, |
|
"Monitor::_dispatch: entering run() for " |
|
"indx = %d, queueId = %d, q = %p", |
|
dst->_entry_index, |
|
dst->_monitor-> |
|
_entries[dst->_entry_index].queueId, |
|
dst)); |
| |
MessageQueue & o = static_cast<HTTPConnection *>(q)->get_owner(); |
try |
Message* message= new CloseConnectionMessage(_entries[indx].socket); |
{ |
message->dest = o.getQueueId(); |
dst->run(1); |
_entries_mut.unlock(); |
} |
o.enqueue(message); |
catch (...) |
return true; |
{ |
|
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)); |
} | } |
_entries[indx]._status = _MonitorEntry::BUSY; |
} |
_entries_mut.unlock(); |
else if (entries[indx]._type == Monitor::INTERNAL) |
_thread_pool->allocate_and_awaken((void *)q, _dispatch); |
{ |
_entries_mut.lock(pegasus_thread_self()); |
_tickler.reset(); |
} | } |
else | else |
{ | { |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"Non-connection entry, indx = %d, has been " |
|
"received.", |
|
indx)); |
int events = 0; | int events = 0; |
events |= SocketMessage::READ; | events |= SocketMessage::READ; |
Message *msg = new SocketMessage(_entries[indx].socket, events); |
Message* msg = new SocketMessage( |
_entries_mut.unlock(); |
entries[indx].socket, events); |
|
entries[indx]._status = _MonitorEntry::BUSY; |
|
_entry_mut.unlock(); |
q->enqueue(msg); | q->enqueue(msg); |
return true; |
_entry_mut.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); |
|
entries[indx]._status = _MonitorEntry::IDLE; |
|
} |
|
} |
|
catch (...) |
|
{ |
|
} |
|
} |
|
// 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) && |
|
entries[indx]._type == Monitor::CONNECTION) |
|
{ |
|
MessageQueue *q = MessageQueue::lookup(entries[indx].queueId); |
|
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); |
|
dst->_entry_index = indx; |
|
dst->closeConnectionOnTimeout(&timeNow); |
} | } |
handled_events = true; |
|
} | } |
} | } |
|
// 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. |
|
else |
|
{ |
|
for (int indx = 0; indx < (int)entries.size(); indx++) |
|
{ |
|
if ((entries[indx]._status.get() == _MonitorEntry::IDLE) && |
|
entries[indx]._type == Monitor::CONNECTION) |
|
{ |
|
MessageQueue *q = MessageQueue::lookup(entries[indx].queueId); |
|
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); |
|
dst->_entry_index = indx; |
|
dst->closeConnectionOnTimeout(&timeNow); |
|
} |
|
} |
|
} |
|
} |
|
|
|
void Monitor::stopListeningForConnections(Boolean wait) |
|
{ |
|
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::stopListeningForConnections()"); |
|
// set boolean then tickle the server to recognize _stopConnections |
|
_stopConnections = 1; |
|
tickle(); |
|
|
|
if (wait) |
|
{ |
|
// Wait for the monitor to notice _stopConnections. Otherwise the |
|
// caller of this function may unbind the ports while the monitor |
|
// is still accepting connections on them. |
|
_stopConnectionsSem.wait(); |
} | } |
_entries_mut.unlock(); |
|
return(handled_events); |
PEG_METHOD_EXIT(); |
} | } |
| |
| |
int Monitor::solicitSocketMessages( | int Monitor::solicitSocketMessages( |
Sint32 socket, |
SocketHandle socket, |
Uint32 events, | Uint32 events, |
Uint32 queueId, | Uint32 queueId, |
int type) | int type) |
{ | { |
|
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solicitSocketMessages"); |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solictSocketMessage"); |
AutoMutex autoMut(_entry_mut); |
|
// Check to see if we need to dynamically grow the _entries array |
_MonitorEntry entry(socket, queueId, type); |
// We always want the _entries array to 2 bigger than the |
entry._status = _MonitorEntry::IDLE; |
// current connections requested |
_entries_mut.lock(pegasus_thread_self()); |
_solicitSocketCount++; // bump the count |
|
int size = (int)_entries.size(); |
Boolean found = false; |
if ((int)_solicitSocketCount >= (size-1)) |
|
{ |
|
for (int i = 0; i < ((int)_solicitSocketCount - (size-1)); i++) |
|
{ |
|
_MonitorEntry entry(0, 0, 0); |
|
_entries.append(entry); |
|
} |
|
} |
| |
int index ; | int index ; |
for(index = 0; index < (int)_entries.size(); index++) |
for (index = 1; index < (int)_entries.size(); index++) |
{ | { |
if(_entries[index]._status == _MonitorEntry::EMPTY) |
try |
{ | { |
_entries[index].operator =(entry); |
if (_entries[index]._status.get() == _MonitorEntry::EMPTY) |
found = true; |
{ |
break; |
_entries[index].socket = socket; |
|
_entries[index].queueId = queueId; |
|
_entries[index]._type = type; |
|
_entries[index]._status = _MonitorEntry::IDLE; |
|
|
|
return index; |
} | } |
} | } |
if(found == false) |
catch (...) |
{ | { |
_entries.append(entry); |
|
index = _entries.size() - 1; |
|
} | } |
_connections++; |
} |
_entries_mut.unlock(); |
// decrease the count, if we are here we didn't do anything meaningful |
|
_solicitSocketCount--; |
PEG_METHOD_EXIT(); | PEG_METHOD_EXIT(); |
return index; |
return -1; |
} | } |
| |
void Monitor::unsolicitSocketMessages(Sint32 socket) |
void Monitor::unsolicitSocketMessages(SocketHandle socket) |
{ | { |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::unsolicitSocketMessages"); | PEG_METHOD_ENTER(TRC_HTTP, "Monitor::unsolicitSocketMessages"); |
|
AutoMutex autoMut(_entry_mut); |
| |
_entries_mut.lock(pegasus_thread_self()); |
/* |
|
Start at index = 1 because _entries[0] is the tickle entry which |
Boolean found = false; |
never needs to be EMPTY; |
|
*/ |
for(int index = 0; index < (int)_entries.size(); index++) |
unsigned int index; |
|
for (index = 1; index < _entries.size(); index++) |
{ | { |
if(_entries[index].socket == socket) | if(_entries[index].socket == socket) |
{ | { |
found = true; |
|
_connections--; |
|
_entries[index]._status = _MonitorEntry::EMPTY; | _entries[index]._status = _MonitorEntry::EMPTY; |
|
_entries[index].socket = PEGASUS_INVALID_SOCKET; |
|
_solicitSocketCount--; |
|
break; |
} | } |
} | } |
_entries_mut.unlock(); |
|
PEGASUS_ASSERT(found == 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. |
|
*/ |
|
index = _entries.size() - 1; |
|
while (_entries[index]._status.get() == _MonitorEntry::EMPTY) |
|
{ |
|
if (_entries.size() > MAX_NUMBER_OF_MONITOR_ENTRIES) |
|
_entries.remove(index); |
|
index--; |
|
} |
PEG_METHOD_EXIT(); | PEG_METHOD_EXIT(); |
} | } |
| |
|
// Note: this is no longer called with PEP 183. |
|
ThreadReturnType PEGASUS_THREAD_CDECL Monitor::_dispatch(void* parm) |
PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL Monitor::_dispatch(void *parm) |
|
{ | { |
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(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); | dst->run(1); |
return 0; |
|
} | } |
|
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 |
|
// 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 | PEGASUS_NAMESPACE_END |