version 1.29, 2002/04/25 00:11:07
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version 1.93, 2008/01/09 20:29:29
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//%///-*-c++-*-///////////////////////////////////////////////////////////////// |
//%2006//////////////////////////////////////////////////////////////////////// |
// | // |
// Copyright (c) 2000, 2001 BMC Software, Hewlett-Packard Company, IBM, |
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development |
// The Open Group, Tivoli Systems |
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. |
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// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation, The Open Group. |
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// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; Symantec Corporation; The Open Group. |
// | // |
// Permission is hereby granted, free of charge, to any person obtaining a copy | // Permission is hereby granted, free of charge, to any person obtaining a copy |
// of this software and associated documentation files (the "Software"), to | // of this software and associated documentation files (the "Software"), to |
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// | // |
//============================================================================== | //============================================================================== |
// | // |
// Author: Mike Brasher (mbrasher@bmc.com) |
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// |
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// Modified By: Nitin Upasani, Hewlett-Packard Company (Nitin_Upasani@hp.com) |
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// Carol Ann Krug Graves, Hewlett-Packard Company |
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// (carolann_graves@hp.com) |
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// Mike Day (mdday@us.ibm.com) |
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// Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com) |
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// |
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//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
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#ifndef Pegasus_Message_h | #ifndef Pegasus_Message_h |
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#include <Pegasus/Common/Config.h> | #include <Pegasus/Common/Config.h> |
#include <iostream> | #include <iostream> |
#include <cstring> | #include <cstring> |
#include <Pegasus/Common/Exception.h> |
#include <Pegasus/Common/InternalException.h> |
#include <Pegasus/Common/IPC.h> |
#include <Pegasus/Common/Linkage.h> |
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#include <Pegasus/Common/CIMOperationType.h> |
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#include <Pegasus/Common/Threads.h> |
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#include <Pegasus/Common/Linkable.h> |
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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// REVIEW: could class be renamed to MessageMask (coding standard) |
class PEGASUS_COMMON_LINKAGE MessageMask |
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class PEGASUS_COMMON_LINKAGE message_mask |
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{ | { |
public: | public: |
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// Message handling is indicated by the high order 12 bits. For example: |
static Uint32 type_legacy; |
// Uint32 messageHandling = flags & 0xfff00000; |
static Uint32 type_CIMOperation; |
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static Uint32 type_CIMAsyncOperation; |
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static Uint32 type_export; |
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static Uint32 type_lifetime; |
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static Uint32 type_socket; |
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static Uint32 type_connection; |
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static Uint32 type_http; |
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static Uint32 type_http_error; |
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static Uint32 type_cimom; |
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static Uint32 type_control; |
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static Uint32 type_service; |
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static Uint32 type_broadcast; |
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static Uint32 type_client_exception; |
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static Uint32 ha_no_delete; |
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static Uint32 ha_request; | static Uint32 ha_request; |
static Uint32 ha_reply; | static Uint32 ha_reply; |
static Uint32 ha_synchronous; |
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static Uint32 ha_async; | static Uint32 ha_async; |
static Uint32 ha_wait; |
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// more for documentation than for use |
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inline Uint32 get_type(Uint32 flags) |
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{ |
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return (flags & 0x000fffff); |
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} |
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inline Uint32 get_handling(Uint32 flags) |
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{ |
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return( flags & 0xfff00000); |
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} |
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}; | }; |
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class cimom; |
enum HttpMethod |
class MessageQueue; |
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class MessageQueueService; |
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class AsyncLegacyOperationStart; |
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class AsyncLegacyOperationResult; |
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/** The Message class and derived classes are used to pass messages between |
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modules. Messages are passed between modules using the message queues |
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(see MessageQueue class). Derived classes may add their own fields. |
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This base class defines two common fields: type, which is the type of |
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the message, and key which is a key value whose meaning is defined by |
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the derived class. The MessageQueue class provides methods for finding |
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messages by both type and key. |
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The Message class also provides previous and next pointers which are |
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used to place the messages on a queue by the MessageQueue class. |
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*/ |
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class PEGASUS_COMMON_LINKAGE Message |
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{ |
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public: |
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Message( |
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Uint32 type, |
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Uint32 destination = 0, |
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Uint32 key = getNextKey(), |
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Uint32 routing_code = 0, |
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Uint32 mask = message_mask::type_legacy ) |
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: |
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_type(type), |
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_key(key), |
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_routing_code(routing_code), |
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_mask(mask), |
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_next(0), |
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_prev(0), |
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_async(0), |
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dest(destination) |
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{ |
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} |
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Message(Message & msg) |
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{ |
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if( this != &msg) |
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{ |
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_type = msg._type; |
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_key = msg._key; |
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_routing_code = msg._routing_code; |
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_mask = msg._mask; |
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_next = _prev = _async = 0; |
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dest = msg.dest; |
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} |
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} |
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virtual ~Message(); |
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Uint32 getType() const { return _type; } |
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void setType(Uint32 type) { _type = type; } |
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Uint32 getKey() const { return _key; } |
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void setKey(Uint32 key) { _key = key; } |
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Uint32 getRouting() const { return _routing_code; } |
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void setRouting(Uint32 routing) { _routing_code = routing; } |
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Uint32 getMask() const { return _mask; } |
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void setMask(Uint32 mask) { _mask = mask; } |
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Message* getNext() { return _next; } |
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const Message* getNext() const { return _next; } |
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Message* getPrevious() { return _prev; } |
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const Message* getPrevious() const { return _prev; } |
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static Uint32 getNextKey() |
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{ |
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_mut.lock( pegasus_thread_self() ) ; |
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Uint32 ret = _nextKey++; |
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_mut.unlock(); |
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return ret; |
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} |
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virtual void print(PEGASUS_STD(ostream)& os) const; |
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// << Thu Dec 27 10:46:04 2001 mdd >> for use with DQueue container |
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// as used by AsyncOpNode |
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Boolean operator == (const void *msg ) |
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{ |
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if (reinterpret_cast<void *>(this) == msg ) |
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return true; |
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return false; |
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} |
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Message *get_async(void) |
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{ |
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Message *ret = _async; |
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_async = 0; |
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return ret; |
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} |
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void put_async(Message * msg) |
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{ | { |
_async = msg; |
HTTP_METHOD__POST, |
} |
HTTP_METHOD_M_POST |
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private: |
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Uint32 _type; |
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Uint32 _key; |
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Uint32 _routing_code; |
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Uint32 _mask; |
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Message* _next; |
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Message* _prev; |
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protected: |
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Message *_async; |
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public: |
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Uint32 dest; |
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private: |
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MessageQueue* _owner; |
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static Uint32 _nextKey; |
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static Mutex _mut; |
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friend class cimom; |
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friend class MessageQueue; |
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friend class MessageQueueService; |
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friend class AsyncLegacyOperationStart; |
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friend class AsyncLegacyOperationResult; |
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}; | }; |
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enum MessageType | enum MessageType |
{ | { |
DUMMY_MESSAGE, | DUMMY_MESSAGE, |
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CIM_CREATE_INSTANCE_REQUEST_MESSAGE, | CIM_CREATE_INSTANCE_REQUEST_MESSAGE, |
CIM_MODIFY_CLASS_REQUEST_MESSAGE, | CIM_MODIFY_CLASS_REQUEST_MESSAGE, |
CIM_MODIFY_INSTANCE_REQUEST_MESSAGE, | CIM_MODIFY_INSTANCE_REQUEST_MESSAGE, |
CIM_ENUMERATE_CLASSES_REQUEST_MESSAGE, |
CIM_ENUMERATE_CLASSES_REQUEST_MESSAGE, //10 |
CIM_ENUMERATE_CLASS_NAMES_REQUEST_MESSAGE, | CIM_ENUMERATE_CLASS_NAMES_REQUEST_MESSAGE, |
CIM_ENUMERATE_INSTANCES_REQUEST_MESSAGE, | CIM_ENUMERATE_INSTANCES_REQUEST_MESSAGE, |
CIM_ENUMERATE_INSTANCE_NAMES_REQUEST_MESSAGE, | CIM_ENUMERATE_INSTANCE_NAMES_REQUEST_MESSAGE, |
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CIM_REFERENCES_REQUEST_MESSAGE, | CIM_REFERENCES_REQUEST_MESSAGE, |
CIM_REFERENCE_NAMES_REQUEST_MESSAGE, | CIM_REFERENCE_NAMES_REQUEST_MESSAGE, |
CIM_GET_PROPERTY_REQUEST_MESSAGE, | CIM_GET_PROPERTY_REQUEST_MESSAGE, |
CIM_SET_PROPERTY_REQUEST_MESSAGE, |
CIM_SET_PROPERTY_REQUEST_MESSAGE, //20 |
CIM_GET_QUALIFIER_REQUEST_MESSAGE, | CIM_GET_QUALIFIER_REQUEST_MESSAGE, |
CIM_SET_QUALIFIER_REQUEST_MESSAGE, | CIM_SET_QUALIFIER_REQUEST_MESSAGE, |
CIM_DELETE_QUALIFIER_REQUEST_MESSAGE, | CIM_DELETE_QUALIFIER_REQUEST_MESSAGE, |
CIM_ENUMERATE_QUALIFIERS_REQUEST_MESSAGE, | CIM_ENUMERATE_QUALIFIERS_REQUEST_MESSAGE, |
CIM_INVOKE_METHOD_REQUEST_MESSAGE, | CIM_INVOKE_METHOD_REQUEST_MESSAGE, |
CIM_ENABLE_INDICATION_SUBSCRIPTION_REQUEST_MESSAGE, |
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CIM_MODIFY_INDICATION_SUBSCRIPTION_REQUEST_MESSAGE, |
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CIM_DISABLE_INDICATION_SUBSCRIPTION_REQUEST_MESSAGE, |
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CIM_PROCESS_INDICATION_REQUEST_MESSAGE, | CIM_PROCESS_INDICATION_REQUEST_MESSAGE, |
CIM_HANDLE_INDICATION_REQUEST_MESSAGE, | CIM_HANDLE_INDICATION_REQUEST_MESSAGE, |
CIM_NOTIFY_PROVIDER_REGISTRATION_REQUEST_MESSAGE, | CIM_NOTIFY_PROVIDER_REGISTRATION_REQUEST_MESSAGE, |
CIM_NOTIFY_PROVIDER_TERMINATION_REQUEST_MESSAGE, | CIM_NOTIFY_PROVIDER_TERMINATION_REQUEST_MESSAGE, |
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CIM_CREATE_SUBSCRIPTION_REQUEST_MESSAGE, // 30 |
// new |
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CIM_ENABLE_INDICATIONS_REQUEST_MESSAGE, |
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CIM_DISABLE_INDICATIONS_REQUEST_MESSAGE, |
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CIM_CREATE_SUBSCRIPTION_REQUEST_MESSAGE, |
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CIM_MODIFY_SUBSCRIPTION_REQUEST_MESSAGE, | CIM_MODIFY_SUBSCRIPTION_REQUEST_MESSAGE, |
CIM_DELETE_SUBSCRIPTION_REQUEST_MESSAGE, | CIM_DELETE_SUBSCRIPTION_REQUEST_MESSAGE, |
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// new |
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CIM_DISABLE_MODULE_REQUEST_MESSAGE, | CIM_DISABLE_MODULE_REQUEST_MESSAGE, |
CIM_ENABLE_MODULE_REQUEST_MESSAGE, | CIM_ENABLE_MODULE_REQUEST_MESSAGE, |
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CIM_STOP_ALL_PROVIDERS_REQUEST_MESSAGE, |
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CIM_GET_CLASS_RESPONSE_MESSAGE, | CIM_GET_CLASS_RESPONSE_MESSAGE, |
CIM_GET_INSTANCE_RESPONSE_MESSAGE, | CIM_GET_INSTANCE_RESPONSE_MESSAGE, |
CIM_EXPORT_INDICATION_RESPONSE_MESSAGE, | CIM_EXPORT_INDICATION_RESPONSE_MESSAGE, |
CIM_DELETE_CLASS_RESPONSE_MESSAGE, | CIM_DELETE_CLASS_RESPONSE_MESSAGE, |
CIM_DELETE_INSTANCE_RESPONSE_MESSAGE, |
CIM_DELETE_INSTANCE_RESPONSE_MESSAGE, // 40 |
CIM_CREATE_CLASS_RESPONSE_MESSAGE, | CIM_CREATE_CLASS_RESPONSE_MESSAGE, |
CIM_CREATE_INSTANCE_RESPONSE_MESSAGE, | CIM_CREATE_INSTANCE_RESPONSE_MESSAGE, |
CIM_MODIFY_CLASS_RESPONSE_MESSAGE, | CIM_MODIFY_CLASS_RESPONSE_MESSAGE, |
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CIM_ENUMERATE_INSTANCES_RESPONSE_MESSAGE, | CIM_ENUMERATE_INSTANCES_RESPONSE_MESSAGE, |
CIM_ENUMERATE_INSTANCE_NAMES_RESPONSE_MESSAGE, | CIM_ENUMERATE_INSTANCE_NAMES_RESPONSE_MESSAGE, |
CIM_EXEC_QUERY_RESPONSE_MESSAGE, | CIM_EXEC_QUERY_RESPONSE_MESSAGE, |
CIM_ASSOCIATORS_RESPONSE_MESSAGE, |
CIM_ASSOCIATORS_RESPONSE_MESSAGE, // 50 |
CIM_ASSOCIATOR_NAMES_RESPONSE_MESSAGE, | CIM_ASSOCIATOR_NAMES_RESPONSE_MESSAGE, |
CIM_REFERENCES_RESPONSE_MESSAGE, | CIM_REFERENCES_RESPONSE_MESSAGE, |
CIM_REFERENCE_NAMES_RESPONSE_MESSAGE, | CIM_REFERENCE_NAMES_RESPONSE_MESSAGE, |
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CIM_SET_QUALIFIER_RESPONSE_MESSAGE, | CIM_SET_QUALIFIER_RESPONSE_MESSAGE, |
CIM_DELETE_QUALIFIER_RESPONSE_MESSAGE, | CIM_DELETE_QUALIFIER_RESPONSE_MESSAGE, |
CIM_ENUMERATE_QUALIFIERS_RESPONSE_MESSAGE, | CIM_ENUMERATE_QUALIFIERS_RESPONSE_MESSAGE, |
CIM_INVOKE_METHOD_RESPONSE_MESSAGE, |
CIM_INVOKE_METHOD_RESPONSE_MESSAGE, // 60 |
CIM_ENABLE_INDICATION_SUBSCRIPTION_RESPONSE_MESSAGE, |
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CIM_MODIFY_INDICATION_SUBSCRIPTION_RESPONSE_MESSAGE, |
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CIM_DISABLE_INDICATION_SUBSCRIPTION_RESPONSE_MESSAGE, |
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CIM_PROCESS_INDICATION_RESPONSE_MESSAGE, | CIM_PROCESS_INDICATION_RESPONSE_MESSAGE, |
CIM_NOTIFY_PROVIDER_REGISTRATION_RESPONSE_MESSAGE, | CIM_NOTIFY_PROVIDER_REGISTRATION_RESPONSE_MESSAGE, |
CIM_NOTIFY_PROVIDER_TERMINATION_RESPONSE_MESSAGE, | CIM_NOTIFY_PROVIDER_TERMINATION_RESPONSE_MESSAGE, |
CIM_HANDLE_INDICATION_RESPONSE_MESSAGE, | CIM_HANDLE_INDICATION_RESPONSE_MESSAGE, |
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// new |
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CIM_ENABLE_INDICATIONS_RESPONSE_MESSAGE, |
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CIM_DISABLE_INDICATIONS_RESPONSE_MESSAGE, |
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CIM_CREATE_SUBSCRIPTION_RESPONSE_MESSAGE, | CIM_CREATE_SUBSCRIPTION_RESPONSE_MESSAGE, |
CIM_MODIFY_SUBSCRIPTION_RESPONSE_MESSAGE, | CIM_MODIFY_SUBSCRIPTION_RESPONSE_MESSAGE, |
CIM_DELETE_SUBSCRIPTION_RESPONSE_MESSAGE, | CIM_DELETE_SUBSCRIPTION_RESPONSE_MESSAGE, |
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// new |
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CIM_DISABLE_MODULE_RESPONSE_MESSAGE, | CIM_DISABLE_MODULE_RESPONSE_MESSAGE, |
CIM_ENABLE_MODULE_RESPONSE_MESSAGE, | CIM_ENABLE_MODULE_RESPONSE_MESSAGE, |
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CIM_STOP_ALL_PROVIDERS_RESPONSE_MESSAGE, // 70 |
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// Monitor-related messages: | // Monitor-related messages: |
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CLIENT_EXCEPTION_MESSAGE, | CLIENT_EXCEPTION_MESSAGE, |
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ASYNC_REGISTER_CIM_SERVICE, |
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ASYNC_DEREGISTER_CIM_SERVICE, |
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ASYNC_UPDATE_CIM_SERVICE, |
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ASYNC_IOCTL, |
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ASYNC_CIMSERVICE_START, // 80 |
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ASYNC_CIMSERVICE_STOP, |
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ASYNC_CIMSERVICE_PAUSE, |
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ASYNC_CIMSERVICE_RESUME, |
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ASYNC_ASYNC_OP_START, |
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ASYNC_ASYNC_OP_RESULT, |
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ASYNC_ASYNC_LEGACY_OP_START, |
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ASYNC_ASYNC_LEGACY_OP_RESULT, |
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ASYNC_FIND_SERVICE_Q, |
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ASYNC_FIND_SERVICE_Q_RESULT, |
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ASYNC_ENUMERATE_SERVICE, // 90 |
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ASYNC_ENUMERATE_SERVICE_RESULT, |
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ASYNC_REGISTERED_MODULE, |
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ASYNC_DEREGISTERED_MODULE, |
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ASYNC_FIND_MODULE_IN_SERVICE, |
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ASYNC_FIND_MODULE_IN_SERVICE_RESPONSE, |
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ASYNC_ASYNC_MODULE_OP_START, |
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ASYNC_ASYNC_MODULE_OP_RESULT, |
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CIM_NOTIFY_PROVIDER_ENABLE_REQUEST_MESSAGE, |
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CIM_NOTIFY_PROVIDER_ENABLE_RESPONSE_MESSAGE, |
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CIM_NOTIFY_PROVIDER_FAIL_REQUEST_MESSAGE, // 100 |
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CIM_NOTIFY_PROVIDER_FAIL_RESPONSE_MESSAGE, |
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CIM_INITIALIZE_PROVIDER_AGENT_REQUEST_MESSAGE, |
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CIM_INITIALIZE_PROVIDER_AGENT_RESPONSE_MESSAGE, |
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CIM_NOTIFY_CONFIG_CHANGE_REQUEST_MESSAGE, |
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CIM_NOTIFY_CONFIG_CHANGE_RESPONSE_MESSAGE, |
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CIM_SUBSCRIPTION_INIT_COMPLETE_REQUEST_MESSAGE, |
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CIM_SUBSCRIPTION_INIT_COMPLETE_RESPONSE_MESSAGE, |
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NUMBER_OF_MESSAGES | NUMBER_OF_MESSAGES |
}; | }; |
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PEGASUS_COMMON_LINKAGE const char* MessageTypeToString(Uint32 messageType); |
PEGASUS_COMMON_LINKAGE const char* MessageTypeToString(MessageType messageType); |
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/** This class implements a stack of queue-ids. Many messages must keep a |
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stack of queue-ids of queues which they must be returned to. This provides |
/** The Message class and derived classes are used to pass messages between |
a light efficient stack for this purpose. |
modules. Messages are passed between modules using the message queues |
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(see MessageQueue class). Derived classes may add their own fields. |
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This base class defines a common type field, which is the type of |
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the message. |
*/ | */ |
class QueueIdStack |
class PEGASUS_COMMON_LINKAGE Message : public Linkable |
{ | { |
public: | public: |
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QueueIdStack() : _size(0) |
Message( |
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MessageType type, |
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Uint32 destination = 0, |
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Uint32 mask = 0) |
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: |
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_type(type), |
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_mask(mask), |
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_httpMethod (HTTP_METHOD__POST), |
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_close_connect(false), |
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_last_thread_id(Threads::self()), |
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_async(0), |
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dest(destination), |
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_isComplete(true), |
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_index(0) |
{ | { |
} | } |
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QueueIdStack(const QueueIdStack& x) : _size(x._size) |
virtual ~Message(); |
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// NOTE: The compiler default implementation of the copy constructor |
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// is used for this class. |
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Boolean getCloseConnect() const { return _close_connect; } |
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void setCloseConnect(Boolean close_connect) |
{ | { |
memcpy(_items, x._items, sizeof(_items)); |
_close_connect = close_connect; |
} | } |
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PEGASUS_EXPLICIT QueueIdStack(Uint32 x) : _size(0) |
MessageType getType() const { return _type; } |
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void setType(MessageType type) { _type = type; } |
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Uint32 getMask() const { return _mask; } |
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void setMask(Uint32 mask) { _mask = mask; } |
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HttpMethod getHttpMethod() const { return _httpMethod; } |
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void setHttpMethod(HttpMethod httpMethod) {_httpMethod = httpMethod;} |
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static CIMOperationType convertMessageTypetoCIMOpType(MessageType type); |
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#ifdef PEGASUS_DEBUG |
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virtual void print( |
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PEGASUS_STD(ostream)& os, |
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Boolean printHeader = true) const; |
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#endif |
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Message* get_async() |
{ | { |
push(x); |
Message *ret = _async; |
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_async = 0; |
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return ret; |
} | } |
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PEGASUS_EXPLICIT QueueIdStack(Uint32 x1, Uint32 x2) : _size(0) |
void put_async(Message* msg) |
{ | { |
push(x1); |
_async = msg; |
push(x2); |
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} | } |
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~QueueIdStack() |
// << Tue Jul 1 11:02:49 2003 mdd >> pep_88 and helper for i18n and l10n |
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Boolean thread_changed() |
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{ |
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if (!Threads::equal(_last_thread_id, Threads::self())) |
{ | { |
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_last_thread_id = Threads::self(); |
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return true; |
} | } |
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QueueIdStack& operator=(const QueueIdStack& x) |
return false; |
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} |
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// set the message index indicating what piece (or sequence) this is |
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// message indexes start at zero |
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void setIndex(Uint32 index) { _index = index; } |
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// increment the message index |
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void incrementIndex() { _index++; } |
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// set the complete flag indicating if this message piece is the |
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// last or not |
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void setComplete(Boolean isComplete) |
{ | { |
if (this != &x) |
_isComplete = isComplete ? true:false; |
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} |
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// get the message index (or sequence number) |
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Uint32 getIndex() const { return _index; } |
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// is this the first piece of the message ? |
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Boolean isFirst() const { return _index == 0 ? true : false; } |
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// is this message complete? (i.e the last in a one or more sequence) |
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Boolean isComplete() const { return _isComplete; } |
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private: |
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MessageType _type; |
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Uint32 _mask; |
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HttpMethod _httpMethod; |
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Boolean _close_connect; |
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// << Tue Jul 1 11:02:35 2003 mdd >> pep_88 and helper for i18n and l10n |
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ThreadType _last_thread_id; |
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Message* _async; |
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public: |
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Uint32 dest; |
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private: |
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Message& operator=(const Message& msg); |
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Boolean _isComplete; |
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Uint32 _index; |
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}; |
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/** This class implements a stack of queue-ids. Many messages must keep a |
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stack of queue-ids of queues which they must be returned to. This provides |
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a light efficient stack for this purpose. |
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*/ |
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class PEGASUS_COMMON_LINKAGE QueueIdStack |
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{ |
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public: |
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QueueIdStack() : _size(0) |
{ | { |
memcpy(_items, x._items, sizeof(_items)); |
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_size = x._size; |
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} | } |
return *this; |
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QueueIdStack(const QueueIdStack& x); |
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explicit QueueIdStack(Uint32 x); |
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explicit QueueIdStack(Uint32 x1, Uint32 x2); |
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~QueueIdStack() |
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{ |
} | } |
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QueueIdStack& operator=(const QueueIdStack& x); |
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Uint32 size() const | Uint32 size() const |
{ | { |
return _size; | return _size; |
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void push(Uint32 x) | void push(Uint32 x) |
{ | { |
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#ifdef PEGASUS_DEBUG |
if (_size == MAX_SIZE) | if (_size == MAX_SIZE) |
throw StackOverflow(); | throw StackOverflow(); |
|
#endif |
_items[_size++] = x; | _items[_size++] = x; |
} | } |
| |
Uint32& top() | Uint32& top() |
{ | { |
|
#ifdef PEGASUS_DEBUG |
if (_size == 0) | if (_size == 0) |
throw StackUnderflow(); | throw StackUnderflow(); |
|
#endif |
return _items[_size-1]; | return _items[_size-1]; |
} | } |
| |
|
|
| |
void pop() | void pop() |
{ | { |
|
#ifdef PEGASUS_DEBUG |
if (_size == 0) | if (_size == 0) |
throw StackUnderflow(); | throw StackUnderflow(); |
|
#endif |
_size--; | _size--; |
} | } |
| |
/** Make a copy of this stack and then pop the top element. */ | /** Make a copy of this stack and then pop the top element. */ |
QueueIdStack copyAndPop() const |
QueueIdStack copyAndPop() const; |
{ |
|
return QueueIdStack(*this, 0); |
|
} |
|
| |
private: | private: |
| |
// Copy the given stack but then pop the top element: | // Copy the given stack but then pop the top element: |
QueueIdStack(const QueueIdStack& x, int) : _size(x._size) |
QueueIdStack(const QueueIdStack& x, int); |
{ |
|
memcpy(_items, x._items, sizeof(_items)); |
|
pop(); |
|
} |
|
| |
enum { MAX_SIZE = 5 }; | enum { MAX_SIZE = 5 }; |
Uint32 _items[MAX_SIZE]; | Uint32 _items[MAX_SIZE]; |