version 1.116.4.2, 2007/12/14 20:47:55
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version 1.132.4.1, 2008/07/01 15:18:00
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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/HTTPAcceptor.h> |
#include <Pegasus/Common/MessageQueueService.h> | #include <Pegasus/Common/MessageQueueService.h> |
#include <Pegasus/Common/Exception.h> | #include <Pegasus/Common/Exception.h> |
#include "ArrayIterator.h" | #include "ArrayIterator.h" |
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#include "HostAddress.h" |
#include <errno.h> | #include <errno.h> |
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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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//////////////////////////////////////////////////////////////////////////////// | //////////////////////////////////////////////////////////////////////////////// |
// | // |
// Monitor |
// Tickler |
// | // |
//////////////////////////////////////////////////////////////////////////////// | //////////////////////////////////////////////////////////////////////////////// |
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#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), |
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_tickle_client_socket(-1), |
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_tickle_server_socket(-1), |
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_tickle_peer_socket(-1) |
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{ | { |
int numberOfMonitorEntriesToAllocate = MAX_NUMBER_OF_MONITOR_ENTRIES; |
try |
Socket::initializeInterface(); |
{ |
_entries.reserveCapacity(numberOfMonitorEntriesToAllocate); |
_initialize(); |
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} |
// setup the tickler |
catch (...) |
initializeTickler(); |
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// Start the count at 1 because initilizeTickler() |
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// has added an entry in the first position of the |
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// _entries array |
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for (int i = 1; i < numberOfMonitorEntriesToAllocate; i++) |
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{ | { |
_MonitorEntry entry(0, 0, 0); |
_uninitialize(); |
_entries.append(entry); |
throw; |
} | } |
} | } |
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Monitor::~Monitor() |
Tickler::~Tickler() |
{ | { |
uninitializeTickler(); |
_uninitialize(); |
Socket::uninitializeInterface(); |
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PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, |
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"returning from monitor destructor"); |
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} | } |
void Monitor::uninitializeTickler() |
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{ |
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PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, "uninitializing interface"); |
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| |
try |
void Tickler::notify() |
{ | { |
if (_tickle_peer_socket >= 0) |
Socket::write(_clientSocket, "\0", 1); |
{ |
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Socket::close(_tickle_peer_socket); |
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} | } |
if (_tickle_client_socket >= 0) |
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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); |
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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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} |
#if defined(PEGASUS_OS_TYPE_UNIX) |
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void Monitor::initializeTickler() |
// Use an anonymous pipe for the tickle connection. |
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void Tickler::_initialize() |
{ | { |
/* |
int fds[2]; |
NOTE: On any errors trying to |
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setup out tickle connection, |
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throw an exception/end the server |
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*/ |
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/* setup the tickle server/listener */ |
if (pipe(fds) == -1) |
// try until the tcpip is restarted |
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do |
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{ |
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// get a socket for the server side |
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if ((_tickle_server_socket = |
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Socket::createSocket(PF_INET, SOCK_STREAM, 0)) == |
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PEGASUS_INVALID_SOCKET) |
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{ | { |
MessageLoaderParms parms( | MessageLoaderParms parms( |
"Common.Monitor.TICKLE_CREATE", | "Common.Monitor.TICKLE_CREATE", |
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throw Exception(parms); | throw Exception(parms); |
} | } |
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// initialize the address |
_serverSocket = fds[0]; |
memset(&_tickle_server_addr, 0, sizeof(_tickle_server_addr)); |
_clientSocket = fds[1]; |
#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM |
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#pragma convert(37) |
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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{ |
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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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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; |
#endif | #endif |
_tickle_server_addr.sin_addr.s_addr = inet_addr("127.0.0.1"); |
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#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM |
int addressFamily; |
#pragma convert(0) |
SocketLength addressLength; |
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|
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memset(&listenAddress, 0, sizeof (listenAddress)); |
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# ifdef PEGASUS_ENABLE_IPV6 |
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if (System::isIPv6StackActive()) |
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{ |
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// Use the IPv6 loopback address for the listen sockets |
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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); |
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} |
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else |
#endif | #endif |
_tickle_server_addr.sin_family = PF_INET; |
{ |
_tickle_server_addr.sin_port = 0; |
// 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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SocketLength _addr_size = sizeof(_tickle_server_addr); |
// 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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// Set up a listen socket to allow the tickle client and server to connect |
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// |
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// bind server side to socket |
// Create the listen socket |
if ((::bind(_tickle_server_socket, |
if ((_listenSocket = Socket::createSocket(addressFamily, SOCK_STREAM, 0)) == |
reinterpret_cast<struct sockaddr*>(&_tickle_server_addr), |
PEGASUS_INVALID_SOCKET) |
sizeof(_tickle_server_addr))) < 0) |
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{ | { |
#ifdef PEGASUS_OS_ZOS |
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MessageLoaderParms parms( | 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); |
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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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{ |
MessageLoaderParms parms( | MessageLoaderParms parms( |
"Common.Monitor.TICKLE_BIND", | "Common.Monitor.TICKLE_BIND", |
"Received error number $0 while binding the internal socket.", | "Received error number $0 while binding the internal socket.", |
getSocketError()); | getSocketError()); |
#endif |
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throw Exception(parms); | throw Exception(parms); |
} | } |
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// 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( | MessageLoaderParms parms( |
"Common.Monitor.TICKLE_LISTEN", | "Common.Monitor.TICKLE_LISTEN", |
"Received error number $0 while listening to the internal " |
"Received error number $0 while listening to the internal socket.", |
"socket.", |
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getSocketError()); | getSocketError()); |
throw Exception(parms); | throw Exception(parms); |
} | } |
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// make sure we have the correct socket for our server |
// Verify we have the correct listen socket |
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SocketLength tmpAddressLength = addressLength; |
int sock = ::getsockname( | 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) | if (sock < 0) |
{ | { |
MessageLoaderParms parms( | MessageLoaderParms parms( |
"Common.Monitor.TICKLE_SOCKNAME", | "Common.Monitor.TICKLE_SOCKNAME", |
"Received error number $0 while getting the internal socket " |
"Received error number $0 while getting the internal socket name.", |
"name.", |
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getSocketError()); | getSocketError()); |
throw Exception(parms); | throw Exception(parms); |
} | } |
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/* set up the tickle client/connector */ |
// |
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// Set up the client side of the tickle connection. |
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// |
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// 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)) == |
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PEGASUS_INVALID_SOCKET) | PEGASUS_INVALID_SOCKET) |
{ | { |
MessageLoaderParms parms( | MessageLoaderParms parms( |
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throw Exception(parms); | throw Exception(parms); |
} | } |
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// 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"); |
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#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM |
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# pragma convert(0) |
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#endif |
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_tickle_client_addr.sin_family = PF_INET; |
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_tickle_client_addr.sin_port = 0; |
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// bind socket to client side |
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if ((::bind(_tickle_client_socket, |
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reinterpret_cast<struct sockaddr*>(&_tickle_client_addr), |
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sizeof(_tickle_client_addr))) < 0) |
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{ | { |
MessageLoaderParms parms( | MessageLoaderParms parms( |
"Common.Monitor.TICKLE_CLIENT_BIND", | "Common.Monitor.TICKLE_CLIENT_BIND", |
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throw Exception(parms); | throw Exception(parms); |
} | } |
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// 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), |
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addressLength) < 0) |
{ | { |
MessageLoaderParms parms( | MessageLoaderParms parms( |
"Common.Monitor.TICKLE_CLIENT_CONNECT", | "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()); | getSocketError()); |
throw Exception(parms); | 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); |
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tmpAddressLength = addressLength; |
// this call may fail, we will try a max of 20 times to establish |
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// 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 && |
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getSocketError() == PEGASUS_NETWORK_TRYAGAIN) |
if (_serverSocket == PEGASUS_SOCKET_ERROR) |
{ |
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int retries = 0; |
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do |
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{ |
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Threads::sleep(1); |
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_tickle_peer_socket = ::accept( |
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_tickle_server_socket, |
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reinterpret_cast<struct sockaddr*>(&_tickle_peer_addr), |
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&peer_size); |
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retries++; |
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} while (_tickle_peer_socket == PEGASUS_SOCKET_ERROR && |
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getSocketError() == PEGASUS_NETWORK_TRYAGAIN && |
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retries < 20); |
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} |
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// TCP/IP is down, destroy sockets and retry again. |
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if (_tickle_peer_socket == PEGASUS_SOCKET_ERROR && |
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getSocketError() == PEGASUS_NETWORK_TCPIP_STOPPED) |
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{ |
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// destroy everything |
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uninitializeTickler(); |
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// retry again. |
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continue; |
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} |
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} |
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if (_tickle_peer_socket == PEGASUS_SOCKET_ERROR) |
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{ | { |
MessageLoaderParms parms( | MessageLoaderParms parms( |
"Common.Monitor.TICKLE_ACCEPT", | "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()); | getSocketError()); |
throw Exception(parms); | throw Exception(parms); |
} | } |
else |
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{ |
// |
// socket is ok |
// Close the listen socket and make the other sockets non-blocking |
break; |
// |
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Socket::close(_listenSocket); |
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Socket::disableBlocking(_serverSocket); |
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Socket::disableBlocking(_clientSocket); |
} | } |
} while (1); // try until TCP/IP is restarted |
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| |
Socket::disableBlocking(_tickle_peer_socket); |
#endif |
Socket::disableBlocking(_tickle_client_socket); |
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// 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); |
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entry._status = _MonitorEntry::IDLE; |
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| |
// is the tickler initalized as first socket on startup ? |
try |
if (_entries.size()==0) |
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{ | { |
// if yes, append a new entry |
Socket::close(_serverSocket); |
_entries.append(entry); |
Socket::close(_clientSocket); |
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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"); |
} | } |
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Socket::uninitializeInterface(); |
} | } |
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void Monitor::tickle() |
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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) |
{ | { |
static char _buffer[] = |
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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_entries.append(MonitorEntry( |
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_tickler.getReadHandle(), |
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1, |
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MonitorEntry::STATUS_IDLE, |
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MonitorEntry::TYPE_TICKLER)); |
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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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_entries.append(MonitorEntry()); |
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} |
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} |
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Monitor::~Monitor() |
{ | { |
'0','0' |
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, |
}; |
"returning from monitor destructor"); |
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} |
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AutoMutex autoMutex(_tickle_mutex); |
void Monitor::tickle() |
Socket::write(_tickle_client_socket,&_buffer, 2); |
{ |
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_tickler.notify(); |
} | } |
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void Monitor::setState( Uint32 index, _MonitorEntry::entry_status status ) |
void Monitor::setState( |
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Uint32 index, |
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MonitorEntry::Status status) |
{ | { |
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AutoMutex autoEntryMutex(_entriesMutex); |
// Set the state to requested state | // Set the state to requested state |
_entries[index]._status = status; |
_entries[index].status = status; |
} | } |
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void Monitor::run(Uint32 milliseconds) | void Monitor::run(Uint32 milliseconds) |
{ | { |
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int i = 0; |
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struct timeval tv = {milliseconds/1000, milliseconds%1000*1000}; | struct timeval tv = {milliseconds/1000, milliseconds%1000*1000}; |
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fd_set fdread; | fd_set fdread; |
FD_ZERO(&fdread); | FD_ZERO(&fdread); |
| |
AutoMutex autoEntryMutex(_entry_mut); |
AutoMutex autoEntryMutex(_entriesMutex); |
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ArrayIterator<_MonitorEntry> entries(_entries); |
ArrayIterator<MonitorEntry> entries(_entries); |
| |
// Check the stopConnections flag. If set, clear the Acceptor monitor | // Check the stopConnections flag. If set, clear the Acceptor monitor |
// entries | // entries |
if (_stopConnections.get() == 1) | 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 | // remove the entry |
entries[indx]._status = _MonitorEntry::EMPTY; |
entries[indx].status = MonitorEntry::STATUS_EMPTY; |
} | } |
else | else |
{ | { |
// set status to DYING | // set status to DYING |
entries[indx]._status = _MonitorEntry::DYING; |
entries[indx].status = MonitorEntry::STATUS_DYING; |
} | } |
} | } |
} | } |
|
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_stopConnectionsSem.signal(); | _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) && |
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(entry._type == Monitor::CONNECTION)) |
if ((entry.status == MonitorEntry::STATUS_DYING) && |
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(entry.type == MonitorEntry::TYPE_CONNECTION)) |
{ | { |
MessageQueue *q = MessageQueue::lookup(entry.queueId); | MessageQueue *q = MessageQueue::lookup(entry.queueId); |
PEGASUS_ASSERT(q != 0); | PEGASUS_ASSERT(q != 0); |
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continue; | continue; |
} | } |
h._connectionClosePending = false; | h._connectionClosePending = false; |
MessageQueue &o = h.get_owner(); |
HTTPAcceptor &o = h.getOwningAcceptor(); |
Message* message= new CloseConnectionMessage(entry.socket); | Message* message= new CloseConnectionMessage(entry.socket); |
message->dest = o.getQueueId(); | message->dest = o.getQueueId(); |
| |
|
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// unlocked will not result in an ArrayIndexOutOfBounds | // unlocked will not result in an ArrayIndexOutOfBounds |
// exception. | // exception. |
| |
_entry_mut.unlock(); |
_entriesMutex.unlock(); |
o.enqueue(message); | o.enqueue(message); |
_entry_mut.lock(); |
_entriesMutex.lock(); |
| |
// After enqueue a message and the autoEntryMutex has been | // After enqueue a message and the autoEntryMutex has been |
// released and locked again, the array of _entries can be | // released and locked again, the array of _entries can be |
|
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because we have to traverse the entire array. | because we have to traverse the entire array. |
*/ | */ |
SocketHandle maxSocketCurrentPass = 0; | 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) | if (maxSocketCurrentPass < entries[indx].socket) |
maxSocketCurrentPass = entries[indx].socket; | maxSocketCurrentPass = entries[indx].socket; |
| |
if (entries[indx]._status.get() == _MonitorEntry::IDLE) |
if (entries[indx].status == MonitorEntry::STATUS_IDLE) |
{ | { |
_idleEntries++; | _idleEntries++; |
FD_SET(entries[indx].socket, &fdread); | FD_SET(entries[indx].socket, &fdread); |
|
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*/ | */ |
maxSocketCurrentPass++; | maxSocketCurrentPass++; |
| |
_entry_mut.unlock(); |
_entriesMutex.unlock(); |
| |
// | // |
// The first argument to select() is ignored on Windows and it is not | // The first argument to select() is ignored on Windows and it is not |
|
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#else | #else |
int events = select(maxSocketCurrentPass, &fdread, NULL, NULL, &tv); | int events = select(maxSocketCurrentPass, &fdread, NULL, NULL, &tv); |
#endif | #endif |
_entry_mut.lock(); |
int selectErrno = getSocketError(); |
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|
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_entriesMutex.lock(); |
| |
struct timeval timeNow; | struct timeval timeNow; |
Time::gettimeofday(&timeNow); | Time::gettimeofday(&timeNow); |
|
|
| |
if (events == PEGASUS_SOCKET_ERROR) | 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 | // The EBADF error indicates that one or more or the file |
// descriptions was not valid. This could indicate that | // descriptions was not valid. This could indicate that |
// the entries structure has been corrupted or that | // the entries structure has been corrupted or that |
// we have a synchronization error. | // we have a synchronization error. |
| |
PEGASUS_ASSERT(errno != EBADF); |
PEGASUS_ASSERT(selectErrno != EBADF); |
} | } |
else if (events) | else if (events) |
{ | { |
|
|
"Monitor::run select event received events = %d, monitoring %d " | "Monitor::run select event received events = %d, monitoring %d " |
"idle entries", | "idle entries", |
events, _idleEntries)); | 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 | // The Monitor should only look at entries in the table that are |
// IDLE (i.e., owned by the Monitor). | // 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))) | (FD_ISSET(entries[indx].socket, &fdread))) |
{ | { |
MessageQueue *q = MessageQueue::lookup(entries[indx].queueId); | MessageQueue *q = MessageQueue::lookup(entries[indx].queueId); |
|
PEGASUS_ASSERT(q != 0); |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, | PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
"Monitor::run indx = %d, queueId = %d, q = %p", | "Monitor::run indx = %d, queueId = %d, q = %p", |
indx, entries[indx].queueId, q)); | indx, entries[indx].queueId, q)); |
PEGASUS_ASSERT(q !=0); |
|
| |
try | try |
{ | { |
if (entries[indx]._type == Monitor::CONNECTION) |
if (entries[indx].type == MonitorEntry::TYPE_CONNECTION) |
{ | { |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, | PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
"entries[indx].type for indx = %d is " |
"entries[%d].type is TYPE_CONNECTION", |
"Monitor::CONNECTION", |
|
indx)); | indx)); |
|
|
HTTPConnection *dst = | HTTPConnection *dst = |
reinterpret_cast<HTTPConnection *>(q); | reinterpret_cast<HTTPConnection *>(q); |
dst->_entry_index = indx; | dst->_entry_index = indx; |
|
|
if (!dst->closeConnectionOnTimeout(&timeNow)) | if (!dst->closeConnectionOnTimeout(&timeNow)) |
{ | { |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, | PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
"Monitor::_dispatch: entering run() for " |
"Entering HTTPConnection::run() for " |
"indx = %d, queueId = %d, q = %p", | "indx = %d, queueId = %d, q = %p", |
dst->_entry_index, |
indx, entries[indx].queueId, q)); |
dst->_monitor-> |
|
_entries[dst->_entry_index].queueId, |
|
dst)); |
|
| |
try | try |
{ | { |
|
|
} | } |
catch (...) | 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, | 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 | else |
{ | { |
|
|
events |= SocketMessage::READ; | events |= SocketMessage::READ; |
Message* msg = new SocketMessage( | Message* msg = new SocketMessage( |
entries[indx].socket, events); | entries[indx].socket, events); |
entries[indx]._status = _MonitorEntry::BUSY; |
entries[indx].status = MonitorEntry::STATUS_BUSY; |
_entry_mut.unlock(); |
_entriesMutex.unlock(); |
q->enqueue(msg); | q->enqueue(msg); |
_entry_mut.lock(); |
_entriesMutex.lock(); |
| |
// After enqueue a message and the autoEntryMutex has | // After enqueue a message and the autoEntryMutex has |
// been released and locked again, the array of | // 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.reset(_entries); |
entries[indx]._status = _MonitorEntry::IDLE; |
entries[indx].status = MonitorEntry::STATUS_IDLE; |
} | } |
} | } |
catch (...) | catch (...) |
|
|
// else check for accept pending (ie. SSL handshake pending) or | // else check for accept pending (ie. SSL handshake pending) or |
// idle connection timeouts for sockets from which we did not | // idle connection timeouts for sockets from which we did not |
// receive data. | // 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); | MessageQueue *q = MessageQueue::lookup(entries[indx].queueId); |
|
PEGASUS_ASSERT(q != 0); |
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); | HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); |
dst->_entry_index = indx; | dst->_entry_index = indx; |
dst->closeConnectionOnTimeout(&timeNow); | dst->closeConnectionOnTimeout(&timeNow); |
|
|
// to check if there are any pending SSL handshakes that have timed out. | // to check if there are any pending SSL handshakes that have timed out. |
else | 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); | MessageQueue *q = MessageQueue::lookup(entries[indx].queueId); |
|
PEGASUS_ASSERT(q != 0); |
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); | HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); |
dst->_entry_index = indx; | dst->_entry_index = indx; |
dst->closeConnectionOnTimeout(&timeNow); | dst->closeConnectionOnTimeout(&timeNow); |
|
|
SocketHandle socket, | SocketHandle socket, |
Uint32 events, | Uint32 events, |
Uint32 queueId, | Uint32 queueId, |
int type) |
Uint32 type) |
{ | { |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solicitSocketMessages"); | 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 | // 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 | // current connections requested |
_solicitSocketCount++; // bump the count | _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 | try |
{ | { |
if (_entries[index]._status.get() == _MonitorEntry::EMPTY) |
if (_entries[index].status == MonitorEntry::STATUS_EMPTY) |
{ | { |
_entries[index].socket = socket; | _entries[index].socket = socket; |
_entries[index].queueId = queueId; | _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; |
return (int)index; |
} | } |
} | } |
catch (...) | catch (...) |
|
|
void Monitor::unsolicitSocketMessages(SocketHandle socket) | void Monitor::unsolicitSocketMessages(SocketHandle socket) |
{ | { |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::unsolicitSocketMessages"); | 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 | 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) | if (_entries[index].socket == socket) |
{ | { |
_entries[index]._status = _MonitorEntry::EMPTY; |
_entries[index].reset(); |
_entries[index].socket = PEGASUS_INVALID_SOCKET; |
|
_solicitSocketCount--; | _solicitSocketCount--; |
break; | break; |
} | } |
|
|
first NON EMPTY. This prevents the positions, of the NON EMPTY | first NON EMPTY. This prevents the positions, of the NON EMPTY |
entries, from being changed. | 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); | _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 | PEGASUS_NAMESPACE_END |