version 1.31.2.1, 2002/10/25 20:49:43
|
version 1.142, 2013/02/25 06:46:07
|
|
|
//%///////////////////////////////////////////////////////////////////////////// |
//%LICENSE//////////////////////////////////////////////////////////////// |
// |
|
// Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM, |
|
// The Open Group, Tivoli Systems |
|
// |
|
// Permission is hereby granted, free of charge, to any person obtaining a copy |
|
// of this software and associated documentation files (the "Software"), to |
|
// deal in the Software without restriction, including without limitation the |
|
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
|
// sell copies of the Software, and to permit persons to whom the Software is |
|
// furnished to do so, subject to the following conditions: |
|
// |
|
// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN |
|
// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED |
|
// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT |
|
// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
|
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
|
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
|
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
|
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
|
// |
|
//============================================================================== |
|
// | // |
// Author: Mike Brasher (mbrasher@bmc.com) |
// Licensed to The Open Group (TOG) under one or more contributor license |
|
// agreements. Refer to the OpenPegasusNOTICE.txt file distributed with |
|
// this work for additional information regarding copyright ownership. |
|
// Each contributor licenses this file to you under the OpenPegasus Open |
|
// Source License; you may not use this file except in compliance with the |
|
// License. |
|
// |
|
// Permission is hereby granted, free of charge, to any person obtaining a |
|
// copy of this software and associated documentation files (the "Software"), |
|
// to deal in the Software without restriction, including without limitation |
|
// the rights to use, copy, modify, merge, publish, distribute, sublicense, |
|
// and/or sell copies of the Software, and to permit persons to whom the |
|
// Software is furnished to do so, subject to the following conditions: |
|
// |
|
// The above copyright notice and this permission notice shall be included |
|
// in all copies or substantial portions of the Software. |
|
// |
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
|
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
|
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
|
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
|
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
// | // |
// Modified By: |
////////////////////////////////////////////////////////////////////////// |
// | // |
//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
| |
|
#include "Network.h" |
#include <Pegasus/Common/Config.h> | #include <Pegasus/Common/Config.h> |
#include <cstring> | #include <cstring> |
#include "Monitor.h" | #include "Monitor.h" |
|
|
#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> |
|
#include <Pegasus/Common/HTTPAcceptor.h> |
#ifdef PEGASUS_OS_TYPE_WINDOWS |
#include <Pegasus/Common/MessageQueueService.h> |
# if defined(FD_SETSIZE) && FD_SETSIZE != 1024 |
#include <Pegasus/Common/Exception.h> |
# error "FD_SETSIZE was not set to 1024 prior to the last inclusion \ |
#include "ArrayIterator.h" |
of <winsock.h>. It may have been indirectly included (e.g., by including \ |
#include "HostAddress.h" |
<windows.h>). Finthe inclusion of that header which is visible to this \ |
#include <errno.h> |
compilation unit and #define FD_SETZIE to 1024 prior to that inclusion; \ |
|
otherwise, less than 64 clients (the default) will be able to connect to the \ |
|
CIMOM. PLEASE DO NOT SUPPRESS THIS WARNING; PLEASE FIX THE PROBLEM." |
|
|
|
# endif |
|
# define FD_SETSIZE 1024 |
|
# include <windows.h> |
|
#else |
|
# include <sys/types.h> |
|
# include <sys/socket.h> |
|
# include <sys/time.h> |
|
# include <netinet/in.h> |
|
# include <netdb.h> |
|
# include <arpa/inet.h> |
|
# include <unistd.h> |
|
#endif |
|
| |
PEGASUS_USING_STD; | PEGASUS_USING_STD; |
| |
PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
| |
|
|
static AtomicInt _connections = 0; |
|
|
|
|
|
static struct timeval create_time = {0, 1}; |
|
static struct timeval destroy_time = {15, 0}; |
|
static struct timeval deadlock_time = {0, 0}; |
|
|
|
//////////////////////////////////////////////////////////////////////////////// | //////////////////////////////////////////////////////////////////////////////// |
// | // |
// MonitorRep |
// Tickler |
// | // |
//////////////////////////////////////////////////////////////////////////////// | //////////////////////////////////////////////////////////////////////////////// |
| |
struct MonitorRep |
Tickler::Tickler() |
|
: _listenSocket(PEGASUS_INVALID_SOCKET), |
|
_clientSocket(PEGASUS_INVALID_SOCKET), |
|
_serverSocket(PEGASUS_INVALID_SOCKET) |
|
{ |
|
try |
{ | { |
fd_set rd_fd_set; |
_initialize(); |
fd_set wr_fd_set; |
} |
fd_set ex_fd_set; |
catch (...) |
fd_set active_rd_fd_set; |
{ |
fd_set active_wr_fd_set; |
_uninitialize(); |
fd_set active_ex_fd_set; |
throw; |
}; |
} |
|
} |
| |
//////////////////////////////////////////////////////////////////////////////// |
Tickler::~Tickler() |
|
{ |
|
_uninitialize(); |
|
} |
|
|
|
void Tickler::notify() |
|
{ |
|
Socket::write(_clientSocket, "\0", 1); |
|
} |
|
|
|
void Tickler::reset() |
|
{ |
|
// Clear all bytes from the tickle socket |
|
char buffer[32]; |
|
while (Socket::read(_serverSocket, buffer, 32) > 0) |
|
{ |
|
} |
|
} |
|
|
|
#if defined(PEGASUS_OS_TYPE_UNIX) |
|
|
|
// Use an anonymous pipe for the tickle connection. |
|
|
|
void Tickler::_initialize() |
|
{ |
|
int fds[2]; |
|
|
|
if (pipe(fds) == -1) |
|
{ |
|
MessageLoaderParms parms( |
|
"Common.Monitor.TICKLE_CREATE", |
|
"Received error number $0 while creating the internal socket.", |
|
getSocketError()); |
|
throw Exception(parms); |
|
} |
|
|
|
_serverSocket = fds[0]; |
|
_clientSocket = fds[1]; |
|
|
|
Socket::disableBlocking(_serverSocket); |
|
} |
|
|
|
#else |
|
|
|
// Use an external loopback socket connection to allow the tickle socket to |
|
// be included in the select() array on non-Unix platforms. |
|
|
|
void Tickler::_initialize() |
|
{ |
// | // |
// Monitor |
// Set up the addresses for the listen, client, and server sockets |
|
// based on whether IPv6 is enabled. |
// | // |
//////////////////////////////////////////////////////////////////////////////// |
|
| |
Monitor::Monitor() |
|
: _module_handle(0), _controller(0), _async(false) |
|
{ |
|
Socket::initializeInterface(); | Socket::initializeInterface(); |
_rep = 0; |
|
_entries.reserveCapacity(32); |
# ifdef PEGASUS_ENABLE_IPV6 |
int i = 0; |
struct sockaddr_storage listenAddress; |
for( ; i < 32; i++ ) |
struct sockaddr_storage clientAddress; |
|
struct sockaddr_storage serverAddress; |
|
# else |
|
struct sockaddr_in listenAddress; |
|
struct sockaddr_in clientAddress; |
|
struct sockaddr_in serverAddress; |
|
# endif |
|
|
|
int addressFamily; |
|
SocketLength addressLength; |
|
|
|
memset(&listenAddress, 0, sizeof (listenAddress)); |
|
|
|
# ifdef PEGASUS_ENABLE_IPV6 |
|
if (System::isIPv6StackActive()) |
{ | { |
_MonitorEntry entry(0, 0, 0); |
// Use the IPv6 loopback address for the listen sockets |
_entries.append(entry); |
HostAddress::convertTextToBinary( |
|
HostAddress::AT_IPV6, |
|
"::1", |
|
&reinterpret_cast<struct sockaddr_in6*>(&listenAddress)->sin6_addr); |
|
listenAddress.ss_family = AF_INET6; |
|
reinterpret_cast<struct sockaddr_in6*>(&listenAddress)->sin6_port = 0; |
|
|
|
addressFamily = AF_INET6; |
|
addressLength = sizeof(struct sockaddr_in6); |
} | } |
|
else |
|
# endif |
|
{ |
|
// Use the IPv4 loopback address for the listen sockets |
|
HostAddress::convertTextToBinary( |
|
HostAddress::AT_IPV4, |
|
"127.0.0.1", |
|
&reinterpret_cast<struct sockaddr_in*>( |
|
&listenAddress)->sin_addr.s_addr); |
|
reinterpret_cast<struct sockaddr_in*>(&listenAddress)->sin_family = |
|
AF_INET; |
|
reinterpret_cast<struct sockaddr_in*>(&listenAddress)->sin_port = 0; |
|
|
|
addressFamily = AF_INET; |
|
addressLength = sizeof(struct sockaddr_in); |
} | } |
| |
Monitor::Monitor(Boolean async) |
// Use the same address for the client socket as the listen socket |
: _module_handle(0), _controller(0), _async(async) |
clientAddress = listenAddress; |
|
|
|
// |
|
// Set up a listen socket to allow the tickle client and server to connect |
|
// |
|
|
|
// Create the listen socket |
|
if ((_listenSocket = Socket::createSocket(addressFamily, SOCK_STREAM, 0)) == |
|
PEGASUS_INVALID_SOCKET) |
{ | { |
Socket::initializeInterface(); |
MessageLoaderParms parms( |
_rep = 0; |
"Common.Monitor.TICKLE_CREATE", |
_entries.reserveCapacity(32); |
"Received error number $0 while creating the internal socket.", |
int i = 0; |
getSocketError()); |
for( ; i < 32; i++ ) |
throw Exception(parms); |
|
} |
|
|
|
// Bind the listen socket to the loopback address |
|
if (::bind( |
|
_listenSocket, |
|
reinterpret_cast<struct sockaddr*>(&listenAddress), |
|
addressLength) < 0) |
{ | { |
_MonitorEntry entry(0, 0, 0); |
MessageLoaderParms parms( |
_entries.append(entry); |
"Common.Monitor.TICKLE_BIND", |
|
"Received error number $0 while binding the internal socket.", |
|
getSocketError()); |
|
throw Exception(parms); |
} | } |
| |
if( _async == true ) |
// Listen for a connection from the tickle client |
|
if ((::listen(_listenSocket, 3)) < 0) |
{ | { |
_thread_pool = new ThreadPool(0, |
MessageLoaderParms parms( |
"Monitor", |
"Common.Monitor.TICKLE_LISTEN", |
1, |
"Received error number $0 while listening to the internal socket.", |
0, |
getSocketError()); |
create_time, |
throw Exception(parms); |
destroy_time, |
|
deadlock_time); |
|
} | } |
else |
|
_thread_pool = 0; |
// Verify we have the correct listen socket |
|
SocketLength tmpAddressLength = addressLength; |
|
int sock = ::getsockname( |
|
_listenSocket, |
|
reinterpret_cast<struct sockaddr*>(&listenAddress), |
|
&tmpAddressLength); |
|
if (sock < 0) |
|
{ |
|
MessageLoaderParms parms( |
|
"Common.Monitor.TICKLE_SOCKNAME", |
|
"Received error number $0 while getting the internal socket name.", |
|
getSocketError()); |
|
throw Exception(parms); |
} | } |
| |
Monitor::~Monitor() |
// |
|
// Set up the client side of the tickle connection. |
|
// |
|
|
|
// Create the client socket |
|
if ((_clientSocket = Socket::createSocket(addressFamily, SOCK_STREAM, 0)) == |
|
PEGASUS_INVALID_SOCKET) |
{ | { |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
MessageLoaderParms parms( |
"deregistering with module controller"); |
"Common.Monitor.TICKLE_CLIENT_CREATE", |
|
"Received error number $0 while creating the internal client " |
|
"socket.", |
|
getSocketError()); |
|
throw Exception(parms); |
|
} |
| |
if(_module_handle != NULL) |
// Bind the client socket to the loopback address |
|
if (::bind( |
|
_clientSocket, |
|
reinterpret_cast<struct sockaddr*>(&clientAddress), |
|
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 " |
|
"socket.", |
|
getSocketError()); |
|
throw Exception(parms); |
} | } |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, "deleting rep"); |
|
| |
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; |
{ |
|
MessageLoaderParms parms( |
|
"Common.Monitor.TICKLE_CLIENT_CONNECT", |
|
"Received error number $0 while connecting the internal client " |
|
"socket.", |
|
getSocketError()); |
|
throw Exception(parms); |
} | } |
| |
|
// |
|
// Set up the server side of the tickle connection. |
|
// |
|
|
|
tmpAddressLength = addressLength; |
| |
int Monitor::kill_idle_threads() |
// Accept the client socket connection. |
|
_serverSocket = ::accept( |
|
_listenSocket, |
|
reinterpret_cast<struct sockaddr*>(&serverAddress), |
|
&tmpAddressLength); |
|
|
|
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 " |
|
"connection.", |
|
getSocketError()); |
|
throw Exception(parms); |
|
} |
|
|
|
// |
|
// Close the listen socket and make the other sockets non-blocking |
|
// |
| |
if( now.tv_sec - last.tv_sec > 300 ) |
Socket::close(_listenSocket); |
|
Socket::disableBlocking(_serverSocket); |
|
Socket::disableBlocking(_clientSocket); |
|
} |
|
|
|
#endif |
|
|
|
void Tickler::_uninitialize() |
{ | { |
PEGASUS_STD(cout) << "Monitor Thread Pool currently has " << |
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, "uninitializing interface"); |
_thread_pool->running_count() + |
|
_thread_pool->pool_count() << " Threads." << PEGASUS_STD(endl); |
|
gettimeofday(&last, NULL); |
|
try | try |
{ | { |
dead_threads = _thread_pool->kill_dead_threads(); |
Socket::close(_serverSocket); |
|
Socket::close(_clientSocket); |
|
Socket::close(_listenSocket); |
} | } |
catch(IPCException& ) |
catch (...) |
{ | { |
|
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL2, |
|
"Failed to close tickle sockets"); |
|
} |
|
Socket::uninitializeInterface(); |
} | } |
| |
|
|
|
//////////////////////////////////////////////////////////////////////////////// |
|
// |
|
// Monitor |
|
// |
|
//////////////////////////////////////////////////////////////////////////////// |
|
|
|
#define MAX_NUMBER_OF_MONITOR_ENTRIES 32 |
|
Monitor::Monitor() |
|
: _stopConnections(0), |
|
_stopConnectionsSem(0), |
|
_solicitSocketCount(0) |
|
{ |
|
int numberOfMonitorEntriesToAllocate = MAX_NUMBER_OF_MONITOR_ENTRIES; |
|
_entries.reserveCapacity(numberOfMonitorEntriesToAllocate); |
|
|
|
// Create a MonitorEntry for the Tickler and set its state to IDLE so the |
|
// Monitor will watch for its events. |
|
_entries.append(MonitorEntry( |
|
_tickler.getReadHandle(), |
|
1, |
|
MonitorEntry::STATUS_IDLE, |
|
MonitorEntry::TYPE_TICKLER)); |
|
|
|
// Start the count at 1 because _entries[0] is the Tickler |
|
for (int i = 1; i < numberOfMonitorEntriesToAllocate; i++) |
|
{ |
|
_entries.append(MonitorEntry()); |
} | } |
return dead_threads; |
|
} | } |
| |
|
Monitor::~Monitor() |
|
{ |
|
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, |
|
"returning from monitor destructor"); |
|
} |
|
|
|
void Monitor::tickle() |
|
{ |
|
_tickler.notify(); |
|
} |
| |
Boolean Monitor::run(Uint32 milliseconds) |
void Monitor::setState( |
|
Uint32 index, |
|
MonitorEntry::Status status) |
{ | { |
|
AutoMutex autoEntryMutex(_entriesMutex); |
|
// Set the state to requested state |
|
_entries[index].status = status; |
|
} |
| |
Boolean handled_events = false; |
void Monitor::run(Uint32 milliseconds) |
int i = 0; |
{ |
|
struct timeval tv = {milliseconds/1000, milliseconds%1000*1000}; |
| |
struct timeval tv = {0,1}; |
|
fd_set fdread; | fd_set fdread; |
FD_ZERO(&fdread); | FD_ZERO(&fdread); |
| |
for( int indx = 0; indx < (int)_entries.size(); indx++) |
AutoMutex autoEntryMutex(_entriesMutex); |
|
|
|
ArrayIterator<MonitorEntry> entries(_entries); |
|
|
|
// Check the stopConnections flag. If set, clear the Acceptor monitor |
|
// entries |
|
if (_stopConnections.get() == 1) |
|
{ |
|
for (Uint32 indx = 0; indx < entries.size(); indx++) |
|
{ |
|
if (entries[indx].type == MonitorEntry::TYPE_ACCEPTOR) |
|
{ |
|
if (entries[indx].status != MonitorEntry::STATUS_EMPTY) |
{ | { |
if(_entries[indx]._status.value() == _MonitorEntry::IDLE) |
if (entries[indx].status == MonitorEntry::STATUS_IDLE || |
|
entries[indx].status == MonitorEntry::STATUS_DYING) |
{ | { |
FD_SET(_entries[indx].socket, &fdread); |
// remove the entry |
|
entries[indx].status = MonitorEntry::STATUS_EMPTY; |
|
} |
|
else |
|
{ |
|
// set status to DYING |
|
entries[indx].status = MonitorEntry::STATUS_DYING; |
|
} |
|
} |
|
} |
} | } |
|
_stopConnections = 0; |
|
_stopConnectionsSem.signal(); |
} | } |
| |
int events = select(FD_SETSIZE, &fdread, NULL, NULL, &tv); |
for (Uint32 indx = 0; indx < entries.size(); indx++) |
|
{ |
|
const MonitorEntry& entry = entries[indx]; |
|
|
|
if ((entry.status == MonitorEntry::STATUS_DYING) && |
|
(entry.type == MonitorEntry::TYPE_CONNECTION)) |
|
{ |
|
MessageQueue *q = MessageQueue::lookup(entry.queueId); |
|
PEGASUS_ASSERT(q != 0); |
|
HTTPConnection &h = *static_cast<HTTPConnection *>(q); |
|
|
|
if (h._connectionClosePending == false) |
|
continue; |
| |
|
// NOTE: do not attempt to delete while there are pending responses |
|
// coming thru. The last response to come thru after a |
|
// _connectionClosePending will reset _responsePending to false |
|
// and then cause the monitor to rerun this code and clean up. |
|
// (see HTTPConnection.cpp) |
|
|
|
if (h._responsePending == true) |
|
{ |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"Monitor::run - Ignoring connection delete request " |
|
"because responses are still pending. " |
|
"connection=0x%p, socket=%d\n", |
|
(void *)&h, h.getSocket())); |
|
continue; |
|
} |
|
h._connectionClosePending = false; |
|
HTTPAcceptor &o = h.getOwningAcceptor(); |
|
Message* message= new CloseConnectionMessage(entry.socket); |
|
message->dest = o.getQueueId(); |
|
|
|
// HTTPAcceptor is responsible for closing the connection. |
|
// The lock is released to allow HTTPAcceptor to call |
|
// unsolicitSocketMessages to free the entry. |
|
// Once HTTPAcceptor completes processing of the close |
|
// connection, the lock is re-requested and processing of |
|
// the for loop continues. This is safe with the current |
|
// implementation of the entries object. Note that the |
|
// loop condition accesses the entries.size() on each |
|
// iteration, so that a change in size while the mutex is |
|
// unlocked will not result in an ArrayIndexOutOfBounds |
|
// exception. |
|
|
|
_entriesMutex.unlock(); |
|
o.enqueue(message); |
|
_entriesMutex.lock(); |
|
|
|
// After enqueue a message and the autoEntryMutex has been |
|
// released and locked again, the array of _entries can be |
|
// changed. The ArrayIterator has be reset with the original |
|
// _entries. |
|
entries.reset(_entries); |
|
} |
|
} |
|
|
|
Uint32 _idleEntries = 0; |
|
|
|
/* |
|
We will keep track of the maximum socket number and pass this value |
|
to the kernel as a parameter to SELECT. This loop seems like a good |
|
place to calculate the max file descriptor (maximum socket number) |
|
because we have to traverse the entire array. |
|
*/ |
|
SocketHandle maxSocketCurrentPass = 0; |
|
for (Uint32 indx = 0; indx < entries.size(); indx++) |
|
{ |
|
if (maxSocketCurrentPass < entries[indx].socket) |
|
maxSocketCurrentPass = entries[indx].socket; |
|
|
|
if (entries[indx].status == MonitorEntry::STATUS_IDLE) |
|
{ |
|
_idleEntries++; |
|
FD_SET(entries[indx].socket, &fdread); |
|
} |
|
} |
|
|
|
/* |
|
Add 1 then assign maxSocket accordingly. We add 1 to account for |
|
descriptors starting at 0. |
|
*/ |
|
maxSocketCurrentPass++; |
|
|
|
_entriesMutex.unlock(); |
|
|
|
// |
|
// The first argument to select() is ignored on Windows and it is not |
|
// a socket value. The original code assumed that the number of sockets |
|
// and a socket value have the same type. On Windows they do not. |
|
// |
#ifdef PEGASUS_OS_TYPE_WINDOWS | #ifdef PEGASUS_OS_TYPE_WINDOWS |
if(events && events != SOCKET_ERROR ) |
int events = select(0, &fdread, NULL, NULL, &tv); |
#else | #else |
if(events && events != -1 ) |
int events = select(maxSocketCurrentPass, &fdread, NULL, NULL, &tv); |
#endif | #endif |
|
|
|
_entriesMutex.lock(); |
|
|
|
struct timeval timeNow; |
|
Time::gettimeofday(&timeNow); |
|
|
|
// 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); |
|
|
|
if (events == PEGASUS_SOCKET_ERROR) |
|
{ |
|
int selectErrno = 0; |
|
selectErrno = getSocketError(); |
|
|
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL1, |
|
"Monitor::run - select() returned error %d.", selectErrno)); |
|
// The EBADF error indicates that one or more or the file |
|
// descriptions was not valid. This could indicate that |
|
// the entries structure has been corrupted or that |
|
// we have a synchronization error. |
|
|
|
PEGASUS_ASSERT(selectErrno != EBADF); |
|
} |
|
else if (events) |
|
{ |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"Monitor::run select event received events = %d, monitoring %d " |
|
"idle entries", |
|
events, _idleEntries)); |
|
for (Uint32 indx = 0; indx < entries.size(); indx++) |
|
{ |
|
// The Monitor should only look at entries in the table that are |
|
// IDLE (i.e., owned by the Monitor). |
|
if ((entries[indx].status == MonitorEntry::STATUS_IDLE) && |
|
(FD_ISSET(entries[indx].socket, &fdread))) |
|
{ |
|
MessageQueue* q = MessageQueue::lookup(entries[indx].queueId); |
|
PEGASUS_ASSERT(q != 0); |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"Monitor::run indx = %d, queueId = %d, q = %p", |
|
indx, entries[indx].queueId, q)); |
|
|
|
try |
{ | { |
for( int indx = 0; indx < (int)_entries.size(); indx++) |
if (entries[indx].type == MonitorEntry::TYPE_CONNECTION) |
{ |
|
if(FD_ISSET(_entries[indx].socket, &fdread)) |
|
{ |
|
MessageQueue *q = MessageQueue::lookup(_entries[indx].queueId); |
|
if(q == 0) |
|
{ | { |
PEGASUS_STD(cout) << "Monitor:: found an empty connection slot" << PEGASUS_STD(endl); |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"entries[%d].type is TYPE_CONNECTION", |
|
indx)); |
|
|
|
HTTPConnection *dst = |
|
reinterpret_cast<HTTPConnection *>(q); |
|
dst->_entry_index = indx; |
|
|
|
// Update idle start time because we have received some |
|
// data. Any data is good data at this point, and we'll |
|
// keep the connection alive, even if we've exceeded |
|
// the idleConnectionTimeout, which will be checked |
|
// when we call closeConnectionOnTimeout() next. |
|
Time::gettimeofday(&dst->_idleStartTime); |
|
|
|
// Check for accept pending (ie. SSL handshake pending) |
|
// or idle connection timeouts for sockets from which |
|
// we received data (avoiding extra queue lookup below). |
|
if (!dst->closeConnectionOnTimeout(&timeNow)) |
|
{ |
|
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
|
"Entering HTTPConnection::run() for " |
|
"indx = %d, queueId = %d, q = %p", |
|
indx, entries[indx].queueId, q)); |
|
|
try | try |
{ | { |
_entries[indx]._status = _MonitorEntry::EMPTY; |
dst->run(); |
} | } |
catch(...) | catch(...) |
{ | { |
|
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL1, |
|
"Caught exception from " |
|
"HTTPConnection::run()"); |
} | } |
return true; |
PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL4, |
|
"Exited HTTPConnection::run()"); |
} | } |
try |
|
{ |
|
if(_entries[indx]._type == Monitor::CONNECTION) |
|
{ |
|
static_cast<HTTPConnection *>(q)->_entry_index = indx; |
|
if(static_cast<HTTPConnection *>(q)->_dying.value() > 0 ) |
|
{ |
|
_entries[indx]._status = _MonitorEntry::DYING; |
|
MessageQueue & o = static_cast<HTTPConnection *>(q)->get_owner(); |
|
Message* message= new CloseConnectionMessage(_entries[indx].socket); |
|
message->dest = o.getQueueId(); |
|
o.enqueue(message); |
|
return true; |
|
} | } |
_entries[indx]._status = _MonitorEntry::BUSY; |
else if (entries[indx].type == MonitorEntry::TYPE_TICKLER) |
_thread_pool->allocate_and_awaken((void *)q, _dispatch); |
{ |
|
_tickler.reset(); |
} | } |
else | else |
{ | { |
int events = 0; |
PEG_TRACE((TRC_HTTP, Tracer::LEVEL4, |
events |= SocketMessage::READ; |
"Non-connection entry, indx = %d, has been " |
Message *msg = new SocketMessage(_entries[indx].socket, events); |
"received.", |
_entries[indx]._status = _MonitorEntry::BUSY; |
indx)); |
|
Message* msg = new SocketMessage( |
|
entries[indx].socket, SocketMessage::READ); |
|
entries[indx].status = MonitorEntry::STATUS_BUSY; |
|
_entriesMutex.unlock(); |
q->enqueue(msg); | q->enqueue(msg); |
_entries[indx]._status = _MonitorEntry::IDLE; |
_entriesMutex.lock(); |
return true; |
|
|
// After enqueue a message and the autoEntryMutex has |
|
// been released and locked again, the array of |
|
// entries can be changed. The ArrayIterator has to be |
|
// reset with the latest _entries. |
|
entries.reset(_entries); |
|
entries[indx].status = MonitorEntry::STATUS_IDLE; |
} | } |
} | } |
catch(...) | catch(...) |
{ | { |
} | } |
handled_events = true; |
} |
|
// else check for accept pending (ie. SSL handshake pending) or |
|
// idle connection timeouts for sockets from which we did not |
|
// receive data. |
|
else if ((entries[indx].status == MonitorEntry::STATUS_IDLE) && |
|
entries[indx].type == MonitorEntry::TYPE_CONNECTION) |
|
|
|
{ |
|
MessageQueue* q = MessageQueue::lookup(entries[indx].queueId); |
|
PEGASUS_ASSERT(q != 0); |
|
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); |
|
dst->_entry_index = indx; |
|
dst->closeConnectionOnTimeout(&timeNow); |
|
} |
|
} |
|
} |
|
// 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 (Uint32 indx = 0; indx < entries.size(); indx++) |
|
{ |
|
if ((entries[indx].status == MonitorEntry::STATUS_IDLE) && |
|
entries[indx].type == MonitorEntry::TYPE_CONNECTION) |
|
{ |
|
MessageQueue* q = MessageQueue::lookup(entries[indx].queueId); |
|
PEGASUS_ASSERT(q != 0); |
|
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(q); |
|
dst->_entry_index = indx; |
|
dst->closeConnectionOnTimeout(&timeNow); |
|
} |
} | } |
} | } |
} | } |
return(handled_events); |
|
|
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(); |
|
} |
|
|
|
PEG_METHOD_EXIT(); |
} | } |
| |
| |
int Monitor::solicitSocketMessages( | int Monitor::solicitSocketMessages( |
Sint32 socket, |
SocketHandle socket, |
Uint32 events, |
|
Uint32 queueId, | Uint32 queueId, |
int type) |
Uint32 type) |
{ | { |
|
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solicitSocketMessages"); |
|
AutoMutex autoMut(_entriesMutex); |
| |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solictSocketMessage"); |
// Check to see if we need to dynamically grow the _entries array |
|
// We always want the _entries array to be 2 bigger than the |
|
// current connections requested |
|
_solicitSocketCount++; // bump the count |
|
|
|
for (Uint32 i = _entries.size(); i < _solicitSocketCount + 1; i++) |
|
{ |
|
_entries.append(MonitorEntry()); |
|
} |
| |
int index = -1; |
for (Uint32 index = 1; index < _entries.size(); index++) |
for(index = 0; index < (int)_entries.size(); index++) |
|
{ | { |
try | try |
{ | { |
if(_entries[index]._status.value() == _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; |
|
|
PEG_METHOD_EXIT(); |
|
return (int)index; |
} | } |
} | } |
catch(...) | catch(...) |
{ | { |
} | } |
} | } |
|
// 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(_entriesMutex); |
| |
for(int index = 0; index < (int)_entries.size(); index++) |
/* |
|
Start at index = 1 because _entries[0] is the tickle entry which |
|
never needs to be reset to EMPTY; |
|
*/ |
|
for (Uint32 index = 1; index < _entries.size(); index++) |
{ | { |
if(_entries[index].socket == socket) | if(_entries[index].socket == socket) |
{ | { |
_entries[index]._status = _MonitorEntry::EMPTY; |
_entries[index].reset(); |
|
_solicitSocketCount--; |
|
break; |
} | } |
} | } |
| |
PEG_METHOD_EXIT(); |
/* |
if( _async == true ) |
Dynamic Contraction: |
PEGASUS_STD(cout) << "Monitor:: running " << _thread_pool->running_count() << |
To remove excess entries we will start from the end of the _entries |
" idle " << _thread_pool->pool_count() << PEGASUS_STD(endl); |
array and remove all entries with EMPTY status until we find the |
|
first NON EMPTY. This prevents the positions, of the NON EMPTY |
} |
entries, from being changed. |
|
*/ |
|
for (Uint32 index = _entries.size() - 1; |
PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL Monitor::_dispatch(void *parm) |
(_entries[index].status == MonitorEntry::STATUS_EMPTY) && |
|
(index >= MAX_NUMBER_OF_MONITOR_ENTRIES); |
|
index--) |
{ | { |
HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(parm); |
_entries.remove(index); |
|
|
dst->run(1); |
|
if( dst->_monitor->_entries.size() > (Uint32)dst->_entry_index ) |
|
dst->_monitor->_entries[dst->_entry_index]._status = _MonitorEntry::IDLE; |
|
|
|
return 0; |
|
} | } |
| |
|
PEG_METHOD_EXIT(); |
|
} |
| |
PEGASUS_NAMESPACE_END | PEGASUS_NAMESPACE_END |