version 1.1.2.8, 2001/08/01 21:34:56
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version 1.70, 2004/01/30 15:41:28
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//%///////////////////////////////////////////////////////////////////////////// |
//%2003//////////////////////////////////////////////////////////////////////// |
// | // |
// Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM |
// Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Development |
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// 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. |
// | // |
// 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) | // Author: Mike Brasher (mbrasher@bmc.com) |
// | // |
// Modified By: |
// Modified By: Mike Day (monitor_2) mdday@us.ibm.com |
// | // |
//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
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#include <Pegasus/Common/Config.h> |
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#include <cstring> | #include <cstring> |
#include "Monitor.h" | #include "Monitor.h" |
#include "MessageQueue.h" | #include "MessageQueue.h" |
#include "Socket.h" | #include "Socket.h" |
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#include <Pegasus/Common/Tracer.h> |
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#include <Pegasus/Common/HTTPConnection.h> |
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#include <Pegasus/Common/MessageQueueService.h> |
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#ifdef PEGASUS_OS_TYPE_WINDOWS | #ifdef PEGASUS_OS_TYPE_WINDOWS |
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# if defined(FD_SETSIZE) && FD_SETSIZE != 1024 |
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# error "FD_SETSIZE was not set to 1024 prior to the last inclusion \ |
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of <winsock.h>. It may have been indirectly included (e.g., by including \ |
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<windows.h>). Finthe inclusion of that header which is visible to this \ |
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compilation unit and #define FD_SETZIE to 1024 prior to that inclusion; \ |
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otherwise, less than 64 clients (the default) will be able to connect to the \ |
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CIMOM. PLEASE DO NOT SUPPRESS THIS WARNING; PLEASE FIX THE PROBLEM." |
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# endif |
# define FD_SETSIZE 1024 | # define FD_SETSIZE 1024 |
# include <winsock.h> |
# include <windows.h> |
#else | #else |
# include <sys/types.h> | # include <sys/types.h> |
# include <sys/socket.h> | # include <sys/socket.h> |
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# include <netinet/in.h> | # include <netinet/in.h> |
# include <netdb.h> | # include <netdb.h> |
# include <arpa/inet.h> | # include <arpa/inet.h> |
# include <unistd.h> |
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#endif | #endif |
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PEGASUS_USING_STD; | PEGASUS_USING_STD; |
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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static AtomicInt _connections = 0; |
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static struct timeval create_time = {0, 1}; |
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static struct timeval destroy_time = {300, 0}; |
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static struct timeval deadlock_time = {0, 0}; |
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//////////////////////////////////////////////////////////////////////////////// | //////////////////////////////////////////////////////////////////////////////// |
// | // |
// MonitorRep | // MonitorRep |
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// | // |
//////////////////////////////////////////////////////////////////////////////// | //////////////////////////////////////////////////////////////////////////////// |
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#define MAX_NUMBER_OF_MONITOR_ENTRIES 32 |
Monitor::Monitor() | Monitor::Monitor() |
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: _module_handle(0), _controller(0), _async(false), _stopConnections(0) |
{ | { |
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int numberOfMonitorEntriesToAllocate = MAX_NUMBER_OF_MONITOR_ENTRIES; |
Socket::initializeInterface(); | Socket::initializeInterface(); |
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_rep = 0; |
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_entries.reserveCapacity(numberOfMonitorEntriesToAllocate); |
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for( int i = 0; i < numberOfMonitorEntriesToAllocate; i++ ) |
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{ |
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_MonitorEntry entry(0, 0, 0); |
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_entries.append(entry); |
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} |
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} |
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_rep = new MonitorRep; |
Monitor::Monitor(Boolean async) |
FD_ZERO(&_rep->rd_fd_set); |
: _module_handle(0), _controller(0), _async(async), _stopConnections(0) |
FD_ZERO(&_rep->wr_fd_set); |
{ |
FD_ZERO(&_rep->ex_fd_set); |
int numberOfMonitorEntriesToAllocate = MAX_NUMBER_OF_MONITOR_ENTRIES; |
FD_ZERO(&_rep->active_rd_fd_set); |
Socket::initializeInterface(); |
FD_ZERO(&_rep->active_wr_fd_set); |
_rep = 0; |
FD_ZERO(&_rep->active_ex_fd_set); |
_entries.reserveCapacity(numberOfMonitorEntriesToAllocate); |
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for( int i = 0; i < numberOfMonitorEntriesToAllocate; i++ ) |
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{ |
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_MonitorEntry entry(0, 0, 0); |
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_entries.append(entry); |
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} |
} | } |
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Monitor::~Monitor() | Monitor::~Monitor() |
{ | { |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"deregistering with module controller"); |
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if(_module_handle != NULL) |
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{ |
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_controller->deregister_module(PEGASUS_MODULENAME_MONITOR); |
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_controller = 0; |
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delete _module_handle; |
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} |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, "deleting rep"); |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, "uninitializing interface"); |
Socket::uninitializeInterface(); | Socket::uninitializeInterface(); |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"returning from monitor destructor"); |
} | } |
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Boolean Monitor::run(Uint32 milliseconds) | Boolean Monitor::run(Uint32 milliseconds) |
{ | { |
#ifdef PEGASUS_OS_TYPE_WINDOWS |
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// Windows select() has a strange little bug. It returns immediately if |
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// there are no descriptors in the set even if the timeout is non-zero. |
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// To work around this, we call Sleep() for now: |
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if (_entries.size() == 0) |
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Sleep(milliseconds); |
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Boolean handled_events = false; |
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int i = 0; |
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#if defined(PEGASUS_OS_OS400) || defined(PEGASUS_OS_HPUX) |
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struct timeval tv = {milliseconds/1000, milliseconds%1000*1000}; |
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#else |
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struct timeval tv = {0, 1}; |
#endif | #endif |
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fd_set fdread; |
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FD_ZERO(&fdread); |
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_entry_mut.lock(pegasus_thread_self()); |
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// Check for events on the selected file descriptors. Only do this if |
// Check the stopConnections flag. If set, clear the Acceptor monitor entries |
// there were no undispatched events from last time. |
if (_stopConnections == 1) |
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{ |
static int count = 0; |
for ( int indx = 0; indx < (int)_entries.size(); indx++) |
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{ |
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if (_entries[indx]._type == Monitor::ACCEPTOR) |
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{ |
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if ( _entries[indx]._status.value() != _MonitorEntry::EMPTY) |
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{ |
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if ( _entries[indx]._status.value() == _MonitorEntry::IDLE || |
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_entries[indx]._status.value() == _MonitorEntry::DYING ) |
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{ |
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// remove the entry |
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_entries[indx]._status = _MonitorEntry::EMPTY; |
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} |
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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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} |
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if (count == 0) |
for( int indx = 0; indx < (int)_entries.size(); indx++) |
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{ |
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if ((_entries[indx]._status.value() == _MonitorEntry::DYING) && |
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(_entries[indx]._type == Monitor::CONNECTION)) |
{ | { |
memcpy(&_rep->active_rd_fd_set, &_rep->rd_fd_set, sizeof(fd_set)); |
MessageQueue *q = MessageQueue::lookup(_entries[indx].queueId); |
memcpy(&_rep->active_wr_fd_set, &_rep->wr_fd_set, sizeof(fd_set)); |
PEGASUS_ASSERT(q != 0); |
memcpy(&_rep->active_ex_fd_set, &_rep->ex_fd_set, sizeof(fd_set)); |
MessageQueue & o = static_cast<HTTPConnection *>(q)->get_owner(); |
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Message* message= new CloseConnectionMessage(_entries[indx].socket); |
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message->dest = o.getQueueId(); |
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// HTTPAcceptor is responsible for closing the connection. |
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// The lock is released to allow HTTPAcceptor to call |
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// unsolicitSocketMessages to free the entry. |
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// Once HTTPAcceptor completes processing of the close |
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// connection, the lock is re-requested and processing of |
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// the for loop continues. This is safe with the current |
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// implementation of the _entries object. Note that the |
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// loop condition accesses the _entries.size() on each |
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// iteration, so that a change in size while the mutex is |
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// unlocked will not result in an ArrayIndexOutOfBounds |
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// exception. |
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_entry_mut.unlock(); |
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o.enqueue(message); |
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_entry_mut.lock(pegasus_thread_self()); |
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} |
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} |
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const Uint32 SEC = milliseconds / 1000; |
Uint32 _idleEntries = 0; |
const Uint32 USEC = (milliseconds % 1000) * 1000; |
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struct timeval tv = { SEC, USEC }; |
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count = select( |
for( int indx = 0; indx < (int)_entries.size(); indx++) |
FD_SETSIZE, |
{ |
&_rep->active_rd_fd_set, |
if(_entries[indx]._status.value() == _MonitorEntry::IDLE) |
&_rep->active_wr_fd_set, |
{ |
&_rep->active_ex_fd_set, |
_idleEntries++; |
&tv); |
FD_SET(_entries[indx].socket, &fdread); |
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} |
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} |
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if (count == 0) |
// Fixed in monitor_2 but added because Monitor is still the default monitor. |
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// When _idleEntries is 0 don't immediately return, otherwise this loops out of control |
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// kicking off kill idle thread threads. E.g. There is nothing to select on when the cimserver |
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// is shutting down. |
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if( _idleEntries == 0 ) |
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{ |
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Thread::sleep( milliseconds ); |
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_entry_mut.unlock(); |
return false; | return false; |
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} |
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_entry_mut.unlock(); |
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int events = select(FD_SETSIZE, &fdread, NULL, NULL, &tv); |
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_entry_mut.lock(pegasus_thread_self()); |
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#ifdef PEGASUS_OS_TYPE_WINDOWS | #ifdef PEGASUS_OS_TYPE_WINDOWS |
else if (count == SOCKET_ERROR) |
if(events == SOCKET_ERROR) |
#else | #else |
else if (count == -1) |
if(events == -1) |
#endif | #endif |
{ | { |
count = 0; |
Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
return false; |
"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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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::run select event received events = %d, monitoring %d idle entries", |
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events, _idleEntries); |
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for( int indx = 0; indx < (int)_entries.size(); indx++) |
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{ |
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// The Monitor should only look at entries in the table that are IDLE (i.e., |
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// owned by the Monitor). |
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if((_entries[indx]._status.value() == _MonitorEntry::IDLE) && |
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(FD_ISSET(_entries[indx].socket, &fdread))) |
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{ |
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MessageQueue *q = MessageQueue::lookup(_entries[indx].queueId); |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::run indx = %d, queueId = %d, q = %p", |
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indx, _entries[indx].queueId, q); |
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PEGASUS_ASSERT(q !=0); |
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try |
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{ |
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if(_entries[indx]._type == Monitor::CONNECTION) |
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{ |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"_entries[indx].type for indx = %d is Monitor::CONNECTION", indx); |
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static_cast<HTTPConnection *>(q)->_entry_index = indx; |
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_entries[indx]._status = _MonitorEntry::BUSY; |
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// If allocate_and_awaken failure, retry on next iteration |
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if (!MessageQueueService::get_thread_pool()->allocate_and_awaken( |
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(void *)q, _dispatch)) |
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{ |
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Tracer::trace(TRC_DISCARDED_DATA, Tracer::LEVEL2, |
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"Monitor::run: Insufficient resources to process request."); |
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_entries[indx]._status = _MonitorEntry::IDLE; |
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_entry_mut.unlock(); |
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return true; |
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} |
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} |
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else |
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{ |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Non-connection entry, indx = %d, has been received.", indx); |
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int events = 0; |
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events |= SocketMessage::READ; |
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Message *msg = new SocketMessage(_entries[indx].socket, events); |
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_entries[indx]._status = _MonitorEntry::BUSY; |
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_entry_mut.unlock(); |
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q->enqueue(msg); |
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_entries[indx]._status = _MonitorEntry::IDLE; |
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return true; |
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} |
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} |
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catch(...) |
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{ |
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} |
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handled_events = true; |
} | } |
} | } |
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} |
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_entry_mut.unlock(); |
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return(handled_events); |
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} |
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for (Uint32 i = 0, n = _entries.size(); i < n; i++) |
void Monitor::stopListeningForConnections() |
{ | { |
Sint32 socket = _entries[i].socket; |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::stopListeningForConnections()"); |
Uint32 events = 0; |
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if (FD_ISSET(socket, &_rep->active_rd_fd_set)) |
_stopConnections = 1; |
events |= SocketMessage::READ; |
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PEG_METHOD_EXIT(); |
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} |
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int Monitor::solicitSocketMessages( |
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Sint32 socket, |
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Uint32 events, |
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Uint32 queueId, |
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int type) |
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{ |
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PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solicitSocketMessages"); |
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_entry_mut.lock(pegasus_thread_self()); |
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for(int index = 0; index < (int)_entries.size(); index++) |
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{ |
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try |
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{ |
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if(_entries[index]._status.value() == _MonitorEntry::EMPTY) |
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{ |
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_entries[index].socket = socket; |
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_entries[index].queueId = queueId; |
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_entries[index]._type = type; |
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_entries[index]._status = _MonitorEntry::IDLE; |
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_entry_mut.unlock(); |
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return index; |
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} |
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} |
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catch(...) |
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{ |
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} |
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} |
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_entry_mut.unlock(); |
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PEG_METHOD_EXIT(); |
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return -1; |
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} |
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void Monitor::unsolicitSocketMessages(Sint32 socket) |
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{ |
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PEG_METHOD_ENTER(TRC_HTTP, "Monitor::unsolicitSocketMessages"); |
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_entry_mut.lock(pegasus_thread_self()); |
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for(int index = 0; index < (int)_entries.size(); index++) |
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{ |
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if(_entries[index].socket == socket) |
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{ |
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_entries[index]._status = _MonitorEntry::EMPTY; |
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_entries[index].socket = -1; |
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break; |
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} |
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} |
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_entry_mut.unlock(); |
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PEG_METHOD_EXIT(); |
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} |
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if (FD_ISSET(socket, &_rep->active_wr_fd_set)) |
PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL Monitor::_dispatch(void *parm) |
events |= SocketMessage::WRITE; |
{ |
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HTTPConnection *dst = reinterpret_cast<HTTPConnection *>(parm); |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::_dispatch: entering run() for indx = %d, queueId = %d, q = %p", |
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dst->_entry_index, dst->_monitor->_entries[dst->_entry_index].queueId, dst); |
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try |
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{ |
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dst->run(1); |
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} |
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catch (...) |
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{ |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::_dispatch: exception received"); |
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} |
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Tracer::trace(TRC_HTTP, Tracer::LEVEL4, |
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"Monitor::_dispatch: exited run() for index %d", dst->_entry_index); |
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if (FD_ISSET(socket, &_rep->active_ex_fd_set)) |
PEGASUS_ASSERT(dst->_monitor->_entries[dst->_entry_index]._status.value() == _MonitorEntry::BUSY); |
events |= SocketMessage::EXCEPTION; |
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if (events) |
// Once the HTTPConnection thread has set the status value to either |
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// Monitor::DYING or Monitor::IDLE, it has returned control of the connection |
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// to the Monitor. It is no longer permissible to access the connection |
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// or the entry in the _entries table. |
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if (dst->_connectionClosePending) |
{ | { |
MessageQueue* queue = MessageQueue::lookup(_entries[i].queueId); |
dst->_monitor->_entries[dst->_entry_index]._status = _MonitorEntry::DYING; |
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} |
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else |
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{ |
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dst->_monitor->_entries[dst->_entry_index]._status = _MonitorEntry::IDLE; |
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} |
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return 0; |
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} |
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////************************* monitor 2 *****************************//// |
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////************************* monitor 2 *****************************//// |
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////************************* monitor 2 *****************************//// |
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////************************* monitor 2 *****************************//// |
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////************************* monitor 2 *****************************//// |
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////************************* monitor 2 *****************************//// |
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////************************* monitor 2 *****************************//// |
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if (!queue) |
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unsolicitSocketMessages(_entries[i].queueId); |
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Message* message = new SocketMessage(socket, events); |
m2e_rep::m2e_rep(void) |
queue->enqueue(message); |
:Base(), state(IDLE) |
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if (events & SocketMessage::WRITE) |
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{ | { |
FD_CLR(socket, &_rep->active_wr_fd_set); |
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} | } |
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if (events & SocketMessage::EXCEPTION) |
m2e_rep::m2e_rep(monitor_2_entry_type _type, |
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pegasus_socket _sock, |
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void* _accept, |
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void* _dispatch) |
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: Base(), type(_type), state(IDLE), psock(_sock), |
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accept_parm(_accept), dispatch_parm(_dispatch) |
{ | { |
FD_CLR(socket, &_rep->active_ex_fd_set); |
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} |
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m2e_rep::~m2e_rep(void) |
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{ |
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} |
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m2e_rep::m2e_rep(const m2e_rep& r) |
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: Base() |
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{ |
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if(this != &r){ |
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type = r.type; |
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psock = r.psock; |
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accept_parm = r.accept_parm; |
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dispatch_parm = r.dispatch_parm; |
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state = IDLE; |
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} |
} | } |
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if (events & SocketMessage::READ) |
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m2e_rep& m2e_rep::operator =(const m2e_rep& r) |
{ | { |
FD_CLR(socket, &_rep->active_rd_fd_set); |
if(this != &r) { |
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type = r.type; |
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psock = r.psock; |
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accept_parm = r.accept_parm; |
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dispatch_parm = r.dispatch_parm; |
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state = IDLE; |
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} |
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return *this; |
} | } |
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count--; |
Boolean m2e_rep::operator ==(const m2e_rep& r) |
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{ |
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if(this == &r) |
return true; | return true; |
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return false; |
} | } |
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Boolean m2e_rep::operator ==(void* r) |
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{ |
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if((void*)this == r) |
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return true; |
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return false; |
} | } |
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m2e_rep::operator pegasus_socket() const |
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{ |
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return psock; |
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} |
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monitor_2_entry::monitor_2_entry(void) |
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{ |
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_rep = new m2e_rep(); |
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} |
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monitor_2_entry::monitor_2_entry(pegasus_socket& _psock, |
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monitor_2_entry_type _type, |
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void* _accept_parm, void* _dispatch_parm) |
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{ |
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_rep = new m2e_rep(_type, _psock, _accept_parm, _dispatch_parm); |
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} |
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monitor_2_entry::monitor_2_entry(const monitor_2_entry& e) |
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{ |
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if(this != &e){ |
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Inc(this->_rep = e._rep); |
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} |
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} |
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monitor_2_entry::~monitor_2_entry(void) |
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{ |
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Dec(_rep); |
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} |
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monitor_2_entry& monitor_2_entry::operator=(const monitor_2_entry& e) |
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{ |
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if(this != &e){ |
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Dec(_rep); |
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Inc(this->_rep = e._rep); |
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} |
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return *this; |
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} |
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Boolean monitor_2_entry::operator ==(const monitor_2_entry& me) const |
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{ |
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if(this == &me) |
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return true; |
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return false; |
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} |
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Boolean monitor_2_entry::operator ==(void* k) const |
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{ |
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if((void *)this == k) |
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return true; |
return false; | return false; |
} | } |
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Boolean Monitor::solicitSocketMessages( |
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monitor_2_entry_type monitor_2_entry::get_type(void) const |
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{ |
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return _rep->type; |
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} |
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void monitor_2_entry::set_type(monitor_2_entry_type t) |
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{ |
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_rep->type = t; |
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} |
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monitor_2_entry_state monitor_2_entry::get_state(void) const |
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{ |
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return (monitor_2_entry_state) _rep->state.value(); |
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} |
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void monitor_2_entry::set_state(monitor_2_entry_state t) |
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{ |
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_rep->state = t; |
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} |
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void* monitor_2_entry::get_accept(void) const |
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{ |
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return _rep->accept_parm; |
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} |
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void monitor_2_entry::set_accept(void* a) |
|
{ |
|
_rep->accept_parm = a; |
|
} |
|
|
|
|
|
void* monitor_2_entry::get_dispatch(void) const |
|
{ |
|
return _rep->dispatch_parm; |
|
} |
|
|
|
void monitor_2_entry::set_dispatch(void* a) |
|
{ |
|
_rep->dispatch_parm = a; |
|
} |
|
|
|
pegasus_socket monitor_2_entry::get_sock(void) const |
|
{ |
|
return _rep->psock; |
|
} |
|
|
|
|
|
void monitor_2_entry::set_sock(pegasus_socket& s) |
|
{ |
|
_rep->psock = s; |
|
|
|
} |
|
|
|
//static monitor_2* _m2_instance; |
|
|
|
AsyncDQueue<HTTPConnection2> monitor_2::_connections(true, 0); |
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|
|
monitor_2::monitor_2(void) |
|
: _session_dispatch(0), _accept_dispatch(0), _listeners(true, 0), |
|
_ready(true, 0), _die(0), _requestCount(0) |
|
{ |
|
try { |
|
|
|
bsd_socket_factory _factory; |
|
|
|
// set up the listener/acceptor |
|
pegasus_socket temp = pegasus_socket(&_factory); |
|
|
|
temp.socket(PF_INET, SOCK_STREAM, 0); |
|
// initialize the address |
|
memset(&_tickle_addr, 0, sizeof(_tickle_addr)); |
|
#ifdef PEGASUS_OS_ZOS |
|
_tickle_addr.sin_addr.s_addr = inet_addr_ebcdic("127.0.0.1"); |
|
#else |
|
#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM |
|
#pragma convert(37) |
|
#endif |
|
_tickle_addr.sin_addr.s_addr = inet_addr("127.0.0.1"); |
|
#ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM |
|
#pragma convert(0) |
|
#endif |
|
#endif |
|
_tickle_addr.sin_family = PF_INET; |
|
_tickle_addr.sin_port = 0; |
|
|
|
PEGASUS_SOCKLEN_SIZE _addr_size = sizeof(_tickle_addr); |
|
|
|
temp.bind((struct sockaddr *)&_tickle_addr, sizeof(_tickle_addr)); |
|
temp.listen(3); |
|
temp.getsockname((struct sockaddr*)&_tickle_addr, &_addr_size); |
|
|
|
// set up the connector |
|
|
|
pegasus_socket tickler = pegasus_socket(&_factory); |
|
tickler.socket(PF_INET, SOCK_STREAM, 0); |
|
struct sockaddr_in _addr; |
|
memset(&_addr, 0, sizeof(_addr)); |
|
#ifdef PEGASUS_OS_ZOS |
|
_addr.sin_addr.s_addr = inet_addr_ebcdic("127.0.0.1"); |
|
#else |
|
_addr.sin_addr.s_addr = inet_addr("127.0.0.1"); |
|
#endif |
|
_addr.sin_family = PF_INET; |
|
_addr.sin_port = 0; |
|
tickler.bind((struct sockaddr*)&_addr, sizeof(_addr)); |
|
tickler.connect((struct sockaddr*)&_tickle_addr, sizeof(_tickle_addr)); |
|
|
|
_tickler.set_sock(tickler); |
|
_tickler.set_type(INTERNAL); |
|
_tickler.set_state(BUSY); |
|
|
|
struct sockaddr_in peer; |
|
memset(&peer, 0, sizeof(peer)); |
|
PEGASUS_SOCKLEN_SIZE peer_size = sizeof(peer); |
|
|
|
pegasus_socket accepted = temp.accept((struct sockaddr*)&peer, &peer_size); |
|
|
|
monitor_2_entry* _tickle = new monitor_2_entry(accepted, INTERNAL, 0, 0); |
|
_tickle->set_state(BUSY); |
|
|
|
_listeners.insert_first(_tickle); |
|
|
|
} |
|
catch(...){ } |
|
} |
|
|
|
monitor_2::~monitor_2(void) |
|
{ |
|
|
|
stop(); |
|
|
|
try { |
|
monitor_2_entry* temp = _listeners.remove_first(); |
|
while(temp){ |
|
delete temp; |
|
temp = _listeners.remove_first(); |
|
} |
|
} |
|
|
|
catch(...){ } |
|
|
|
|
|
try |
|
{ |
|
HTTPConnection2* temp = _connections.remove_first(); |
|
while(temp) |
|
{ |
|
delete temp; |
|
temp = _connections.remove_first(); |
|
} |
|
} |
|
catch(...) |
|
{ |
|
} |
|
|
|
|
|
} |
|
|
|
|
|
void monitor_2::run(void) |
|
{ |
|
monitor_2_entry* temp; |
|
while(_die.value() == 0) { |
|
|
|
struct timeval tv_idle = { 60, 0 }; |
|
|
|
// place all sockets in the select set |
|
FD_ZERO(&rd_fd_set); |
|
try { |
|
_listeners.lock(pegasus_thread_self()); |
|
temp = _listeners.next(0); |
|
while(temp != 0 ){ |
|
if(temp->get_state() == CLOSED ) { |
|
monitor_2_entry* closed = temp; |
|
temp = _listeners.next(closed); |
|
_listeners.remove_no_lock(closed); |
|
|
|
HTTPConnection2 *cn = monitor_2::remove_connection((Sint32)(closed->get_sock())); |
|
delete cn; |
|
delete closed; |
|
} |
|
if(temp == 0) |
|
break; |
|
Sint32 fd = (Sint32) temp->get_sock(); |
|
if(fd >= 0 ) |
|
FD_SET(fd , &rd_fd_set); |
|
temp = _listeners.next(temp); |
|
} |
|
_listeners.unlock(); |
|
} |
|
catch(...){ |
|
return; |
|
} |
|
// important - the dispatch routine has pointers to all the |
|
// entries that are readable. These entries can be changed but |
|
// the pointer must not be tampered with. |
|
if(_connections.count() ) |
|
int events = select(FD_SETSIZE, &rd_fd_set, NULL, NULL, NULL); |
|
else |
|
int events = select(FD_SETSIZE, &rd_fd_set, NULL, NULL, &tv_idle); |
|
|
|
if(_die.value()) |
|
{ |
|
break; |
|
} |
|
|
|
try { |
|
_listeners.lock(pegasus_thread_self()); |
|
temp = _listeners.next(0); |
|
while(temp != 0 ){ |
|
Sint32 fd = (Sint32) temp->get_sock(); |
|
if(fd >= 0 && FD_ISSET(fd, &rd_fd_set)) { |
|
temp->set_state(BUSY); |
|
FD_CLR(fd, &rd_fd_set); |
|
monitor_2_entry* ready = new monitor_2_entry(*temp); |
|
try |
|
{ |
|
_ready.insert_first(ready); |
|
} |
|
catch(...) |
|
{ |
|
} |
|
|
|
_requestCount++; |
|
} |
|
temp = _listeners.next(temp); |
|
} |
|
_listeners.unlock(); |
|
} |
|
catch(...){ |
|
return; |
|
} |
|
// now handle the sockets that are ready to read |
|
if(_ready.count()) |
|
_dispatch(); |
|
else |
|
{ |
|
if(_connections.count() == 0 ) |
|
_idle_dispatch(_idle_parm); |
|
} |
|
} // while alive |
|
|
|
} |
|
|
|
int monitor_2::solicitSocketMessages( |
Sint32 socket, | Sint32 socket, |
Uint32 events, | Uint32 events, |
Uint32 queueId) |
Uint32 queueId, |
|
int type) |
{ | { |
// See whether a handler is already registered for this one: |
|
| |
Uint32 pos = _findEntry(socket); |
PEG_METHOD_ENTER(TRC_HTTP, "Monitor::solicitSocketMessages"); |
| |
if (pos != PEGASUS_NOT_FOUND) |
_entry_mut.lock(pegasus_thread_self()); |
return false; |
|
| |
// Set the events: |
for(int index = 0; index < (int)_entries.size(); index++) |
|
{ |
|
try |
|
{ |
|
if(_entries[index]._status.value() == monitor_2_entry::EMPTY) |
|
{ |
|
_entries[index].socket = socket; |
|
//_entries[index].queueId = queueId; |
|
//_entries[index]._type = type; |
|
_entries[index]._status = _MonitorEntry::IDLE; |
|
_entry_mut.unlock(); |
| |
if (events & SocketMessage::READ) |
return index; |
FD_SET(socket, &_rep->rd_fd_set); |
} |
|
} |
|
catch(...) |
|
{ |
|
} |
| |
if (events & SocketMessage::WRITE) |
} |
FD_SET(socket, &_rep->wr_fd_set); |
_entry_mut.unlock(); |
|
PEG_METHOD_EXIT(); |
|
return -1; |
|
} |
| |
if (events & SocketMessage::EXCEPTION) |
|
FD_SET(socket, &_rep->ex_fd_set); |
|
| |
// Add the entry to the list: |
void monitor_2::unsolicitSocketMessages(Sint32 socket) |
|
{ |
| |
_MonitorEntry entry = { socket, queueId }; |
PEG_METHOD_ENTER(TRC_HTTP, "monitor_2::unsolicitSocketMessages"); |
_entries.append(entry); |
_entry2_mut.lock(pegasus_thread_self()); |
|
|
|
for(int index = 0; index < (int)_entries2.size(); index++) |
|
{ |
|
if(_entries2[index].socket == socket) |
|
{ |
|
_entries2[index]._status = monitor_2_entry::EMPTY; |
|
_entries2[index].socket = -1; |
|
break; |
|
} |
|
} |
|
_entry2_mut.unlock(); |
|
PEG_METHOD_EXIT(); |
|
} |
|
|
|
void* monitor_2::set_session_dispatch(void (*dp)(monitor_2_entry*)) |
|
{ |
|
void* old = (void *)_session_dispatch; |
|
_session_dispatch = dp; |
|
return old; |
|
} |
| |
// Success! |
void* monitor_2::set_accept_dispatch(void (*dp)(monitor_2_entry*)) |
|
{ |
|
void* old = (void*)_accept_dispatch; |
|
_accept_dispatch = dp; |
|
return old; |
|
} |
| |
return true; |
void* monitor_2::set_idle_dispatch(void (*dp)(void*)) |
|
{ |
|
void* old = (void*)_idle_dispatch; |
|
_idle_dispatch = dp; |
|
return old; |
} | } |
| |
Boolean Monitor::unsolicitSocketMessages(Sint32 socket) |
void* monitor_2::set_idle_parm(void* parm) |
{ | { |
// Look for the given entry and remove it: |
void* old = _idle_parm; |
|
_idle_parm = parm; |
|
return old; |
|
} |
| |
for (Uint32 i = 0, n = _entries.size(); i < n; i++) |
|
|
|
|
//----------------------------------------------------------------- |
|
// Note on deleting the monitor_2_entry nodes: |
|
// Each case: in the switch statement needs to handle the deletion |
|
// of the monitor_2_entry * node differently. A SESSION dispatch |
|
// routine MUST DELETE the entry during its dispatch handling. |
|
// All other dispatch routines MUST NOT delete the entry during the |
|
// dispatch handling, but must allow monitor_2::_dispatch to delete |
|
// the entry. |
|
// |
|
// The reason is pretty obscure and it is debatable whether or not |
|
// to even bother, but during cimserver shutdown the single monitor_2_entry* |
|
// will leak unless the _session_dispatch routine takes care of deleting it. |
|
// |
|
// The reason is that a shutdown messages completely stops everything and |
|
// the _session_dispatch routine never returns. So monitor_2::_dispatch is |
|
// never able to do its own cleanup. |
|
// |
|
// << Mon Oct 13 09:33:33 2003 mdd >> |
|
//----------------------------------------------------------------- |
|
|
|
void monitor_2::_dispatch(void) |
{ | { |
if (_entries[i].socket == socket) |
monitor_2_entry* entry; |
|
|
|
try |
{ | { |
Sint32 socket = _entries[i].socket; |
|
FD_CLR(socket, &_rep->rd_fd_set); |
entry = _ready.remove_first(); |
FD_CLR(socket, &_rep->wr_fd_set); |
|
FD_CLR(socket, &_rep->ex_fd_set); |
|
_entries.remove(i); |
|
return true; |
|
} | } |
|
catch(...) |
|
{ |
} | } |
| |
|
while(entry != 0 ) { |
|
switch(entry->get_type()) { |
|
case INTERNAL: |
|
static char buffer[2]; |
|
entry->get_sock().disableBlocking(); |
|
entry->get_sock().read(&buffer, 2); |
|
entry->get_sock().enableBlocking(); |
|
delete entry; |
|
|
|
break; |
|
case LISTEN: |
|
{ |
|
static struct sockaddr peer; |
|
static PEGASUS_SOCKLEN_SIZE peer_size = sizeof(peer); |
|
entry->get_sock().disableBlocking(); |
|
pegasus_socket connected = entry->get_sock().accept(&peer, &peer_size); |
|
#ifdef PEGASUS_OS_TYPE_WINDOWS |
|
if((Sint32)connected == SOCKET_ERROR) |
|
#else |
|
if((Sint32)connected == -1 ) |
|
#endif |
|
{ |
|
delete entry; |
|
break; |
|
} |
|
|
|
entry->get_sock().enableBlocking(); |
|
monitor_2_entry *temp = add_entry(connected, SESSION, entry->get_accept(), entry->get_dispatch()); |
|
if(temp && _accept_dispatch != 0) |
|
_accept_dispatch(temp); |
|
delete entry; |
|
|
|
} |
|
break; |
|
case SESSION: |
|
if(_session_dispatch != 0 ) |
|
{ |
|
// NOTE: _session_dispatch will delete entry - do not do it here |
|
_session_dispatch(entry); |
|
} |
|
|
|
else { |
|
static char buffer[4096]; |
|
int bytes = entry->get_sock().read(&buffer, 4096); |
|
delete entry; |
|
} |
|
|
|
break; |
|
case UNTYPED: |
|
default: |
|
delete entry; |
|
break; |
|
} |
|
_requestCount--; |
|
|
|
if(_ready.count() == 0 ) |
|
break; |
|
|
|
try |
|
{ |
|
entry = _ready.remove_first(); |
|
} |
|
catch(...) |
|
{ |
|
} |
|
|
|
} |
|
} |
|
|
|
void monitor_2::stop(void) |
|
{ |
|
_die = 1; |
|
tickle(); |
|
// shut down the listener list, free the list nodes |
|
_tickler.get_sock().close(); |
|
_listeners.shutdown_queue(); |
|
} |
|
|
|
void monitor_2::tickle(void) |
|
{ |
|
static char _buffer[] = |
|
{ |
|
'0','0' |
|
}; |
|
|
|
_tickler.get_sock().disableBlocking(); |
|
|
|
_tickler.get_sock().write(&_buffer, 2); |
|
_tickler.get_sock().enableBlocking(); |
|
|
|
} |
|
|
|
|
|
monitor_2_entry* monitor_2::add_entry(pegasus_socket& ps, |
|
monitor_2_entry_type type, |
|
void* accept_parm, |
|
void* dispatch_parm) |
|
{ |
|
monitor_2_entry* m2e = new monitor_2_entry(ps, type, accept_parm, dispatch_parm); |
|
|
|
try{ |
|
_listeners.insert_first(m2e); |
|
} |
|
catch(...){ |
|
delete m2e; |
|
return 0; |
|
} |
|
tickle(); |
|
return m2e; |
|
} |
|
|
|
Boolean monitor_2::remove_entry(Sint32 s) |
|
{ |
|
monitor_2_entry* temp; |
|
try { |
|
_listeners.try_lock(pegasus_thread_self()); |
|
temp = _listeners.next(0); |
|
while(temp != 0){ |
|
if(s == (Sint32)temp->_rep->psock ){ |
|
temp = _listeners.remove_no_lock(temp); |
|
delete temp; |
|
_listeners.unlock(); |
|
return true; |
|
} |
|
temp = _listeners.next(temp); |
|
} |
|
_listeners.unlock(); |
|
} |
|
catch(...){ |
|
} |
return false; | return false; |
} | } |
| |
Uint32 Monitor::_findEntry(Sint32 socket) const |
Uint32 monitor_2::getOutstandingRequestCount(void) |
|
{ |
|
return _requestCount.value(); |
|
|
|
} |
|
|
|
|
|
HTTPConnection2* monitor_2::remove_connection(Sint32 sock) |
|
{ |
|
|
|
HTTPConnection2* temp; |
|
try |
{ | { |
for (Uint32 i = 0, n = _entries.size(); i < n; i++) |
monitor_2::_connections.lock(pegasus_thread_self()); |
|
temp = monitor_2::_connections.next(0); |
|
while(temp != 0 ) |
{ | { |
if (_entries[i].socket == socket) |
if(sock == temp->getSocket()) |
return i; |
{ |
|
temp = monitor_2::_connections.remove_no_lock(temp); |
|
monitor_2::_connections.unlock(); |
|
return temp; |
|
} |
|
temp = monitor_2::_connections.next(temp); |
|
} |
|
monitor_2::_connections.unlock(); |
|
} |
|
catch(...) |
|
{ |
|
} |
|
return 0; |
} | } |
| |
return PEG_NOT_FOUND; |
Boolean monitor_2::insert_connection(HTTPConnection2* connection) |
|
{ |
|
try |
|
{ |
|
monitor_2::_connections.insert_first(connection); |
} | } |
|
catch(...) |
|
{ |
|
return false; |
|
} |
|
return true; |
|
} |
|
|
| |
PEGASUS_NAMESPACE_END | PEGASUS_NAMESPACE_END |