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875 lines
21 KiB
875 lines
21 KiB
/*++
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Copyright (c) 1997-1999 Microsoft Corporation.
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All rights reserved.
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MODULE NAME:
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ismapi.h
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ABSTRACT:
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Service-to-ISM (Intersite Messaging) service API and
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ISM-to-plug-in-transport API.
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DETAILS:
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CREATED:
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97/11/26 Jeff Parham (jeffparh)
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REVISION HISTORY:
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--*/
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#ifndef __ISMAPI_H__
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#define __ISMAPI_H__
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#if _MSC_VER > 1000
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#pragma once
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#endif
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// User-defined control
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#define ISM_SERVICE_CONTROL_REMOVE_STOP 0x00000080
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#ifndef ISM_STRUCTS_DEFINED
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#define ISM_STRUCTS_DEFINED
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//==============================================================================
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//
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// ISM_MSG structure contains the message data (as a byte blob).
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//
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// Note: pszSubject is permitted to be NULL
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typedef struct _ISM_MSG {
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DWORD cbData;
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#ifdef MIDL_PASS
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[ref,size_is(cbData)] BYTE * pbData;
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[string] LPWSTR pszSubject;
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#else
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BYTE * pbData;
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LPWSTR pszSubject;
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#endif
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} ISM_MSG, *PISM_MSG;
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typedef ISM_MSG ISM_MSG_V1, *PISM_MSG_V1;
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////////////////////////////////////////////////////////////////////////////////
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//
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// ISM_SITE_CONNECTIVITY structure describes how sites are interconnected via
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// a specific transport.
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//
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// The pulCosts element should be interpreted as a multidimensional array.
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// pLinkValues[i*cNumSites + j].ulCost is the cost of communication from site
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// pSiteDNs[i] to site pSiteDNs[j].
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//
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typedef struct _ISM_LINK {
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ULONG ulCost;
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ULONG ulReplicationInterval;
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ULONG ulOptions;
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} ISM_LINK, *PISM_LINK;
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typedef struct _ISM_CONNECTIVITY {
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ULONG cNumSites;
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#ifdef MIDL_PASS
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[ref, string, size_is(cNumSites)] LPWSTR * ppSiteDNs;
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[ref, size_is(cNumSites * cNumSites)] ISM_LINK * pLinkValues;
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#else
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LPWSTR * ppSiteDNs;
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ISM_LINK * pLinkValues;
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#endif
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} ISM_CONNECTIVITY, *PISM_CONNECTIVITY;
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////////////////////////////////////////////////////////////////////////////////
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//
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// ISM_SERVER_LIST structure describes a set of servers, identified by DN.
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//
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typedef struct _ISM_SERVER_LIST {
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DWORD cNumServers;
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#ifdef MIDL_PASS
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[ref, string, size_is(cNumServers)]
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LPWSTR * ppServerDNs;
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#else
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LPWSTR * ppServerDNs;
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#endif
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} ISM_SERVER_LIST, *PISM_SERVER_LIST;
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////////////////////////////////////////////////////////////////////////////////
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//
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// ISM_SCHEDULE structure describes a schedule on which two sites are
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// connected. The byte stream should be interpreted as a SCHEDULE structure,
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// as defined in \nt\public\sdk\inc\schedule.h.
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//
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typedef struct _ISM_SCHEDULE {
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DWORD cbSchedule;
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#ifdef MIDL_PASS
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[ref, size_is(cbSchedule)] BYTE * pbSchedule;
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#else
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BYTE * pbSchedule;
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#endif
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} ISM_SCHEDULE, *PISM_SCHEDULE;
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////////////////////////////////////////////////////////////////////////////////
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//
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// ISM_SITE_COST_INFO structure gives the cost between two sites and an error
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// code. If the error code is non-zero, the cost should be considered invalid.
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//
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// ISM_SITE_COST_INFO_ARRAY is a simple wrapper for an array of
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// ISM_SITE_COST_INFO structures which includes the length.
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//
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typedef struct _ISM_SITE_COST_INFO {
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DWORD dwErrorCode;
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DWORD dwCost;
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} ISM_SITE_COST_INFO, *PISM_SITE_COST_INFO;
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typedef struct _ISM_SITE_COST_INFO_ARRAY {
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DWORD cToSites;
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#ifdef MIDL_PASS
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[ref,size_is(cToSites)] ISM_SITE_COST_INFO* rgCostInfo;
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#else
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ISM_SITE_COST_INFO* rgCostInfo;
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#endif
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DWORD dwFlags;
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} ISM_SITE_COST_INFO_ARRAY, *PISM_SITE_COST_INFO_ARRAY;
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////////////////////////////////////////////////////////////////////////////////
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// Refresh reason codes
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typedef enum _ISM_REFRESH_REASON_CODE {
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ISM_REFRESH_REASON_RESERVED = 0,
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ISM_REFRESH_REASON_TRANSPORT,
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ISM_REFRESH_REASON_SITE,
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ISM_REFRESH_REASON_MAX // always last
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} ISM_REFRESH_REASON_CODE;
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// Shutdown reason codes
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typedef enum _ISM_SHUTDOWN_REASON_CODE {
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ISM_SHUTDOWN_REASON_RESERVED = 0,
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ISM_SHUTDOWN_REASON_NORMAL,
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ISM_SHUTDOWN_REASON_REMOVAL,
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ISM_SHUTDOWN_REASON_MAX // always last
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} ISM_SHUTDOWN_REASON_CODE;
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#endif // #ifndef ISM_STRUCTS_DEFINED
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef MIDL_PASS
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//==============================================================================
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//
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// Service-to-ISM (Intersite Messaging) service API.
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//
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DWORD
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I_ISMSend(
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IN const ISM_MSG * pMsg,
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IN LPCWSTR pszServiceName,
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IN LPCWSTR pszTransportDN,
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IN LPCWSTR pszTransportAddress
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);
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/*++
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Routine Description:
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Sends a message to a service on a remote machine. If the client specifies a
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NULL transport, the lowest cost transport will be used.
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Arguments:
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pMsg (IN) - The data to send.
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pszServiceName (IN) - Service to which to send the message.
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pszTransportDN (IN) - The DN of the Inter-Site-Transport object
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corresponding to the transport by which the message should be sent.
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pszTransportAddress (IN) - The transport-specific address to which to send
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the message.
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Return Values:
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NO_ERROR - Message successfully queued for send.
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other - Failure.
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--*/
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DWORD
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I_ISMReceive(
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IN LPCWSTR pszServiceName,
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IN DWORD dwMsecToWait,
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OUT ISM_MSG ** ppMsg
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);
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/*++
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Routine Description:
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Receives a message addressed to the given service on the local machine.
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If successful and no message is waiting, immediately returns a NULL message.
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If a non-NULL message is returned, the caller is responsible for eventually
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calling I_ISMFree()'ing the returned message.
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Arguments:
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pszServiceName (IN) - Service for which to receive the message.
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dwMsecToWait (IN) - Milliseconds to wait for message if none is immediately
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available; in the range [0, INFINITE].
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ppMsg (OUT) - On successful return, holds a pointer to the received message
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or NULL.
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Return Values:
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NO_ERROR - Message successfully returned (or NULL was returned,
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indicating no message is waiting).
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other - Failure.
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--*/
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void
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I_ISMFree(
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IN VOID * pv
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);
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/*++
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Routine Description:
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Frees memory allocated on the behalf of the client by I_ISM* APIs.
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Arguments:
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pv (IN) - Memory to free.
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Return Values:
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None.
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--*/
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DWORD
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I_ISMGetConnectivity(
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IN LPCWSTR pszTransportDN,
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OUT ISM_CONNECTIVITY ** ppConnectivity
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);
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/*++
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Routine Description:
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Compute the costs associated with transferring data amongst sites via a
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specific transport.
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On successful return, it is the client's responsibility to eventually call
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I_ISMFree(*ppConnectivity);
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Arguments:
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pszTransportDN (IN) - The transport for which to query costs.
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ppConnectivity (OUT) - On successful return, holds a pointer to the
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ISM_CONNECTIVITY structure describing the interconnection of sites
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along the given transport.
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Return Values:
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NO_ERROR - Success.
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ERROR_* - Failure.
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--*/
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DWORD
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I_ISMGetTransportServers(
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IN LPCWSTR pszTransportDN,
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IN LPCWSTR pszSiteDN,
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OUT ISM_SERVER_LIST ** ppServerList
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);
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/*++
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Routine Description:
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Retrieve the DNs of servers in a given site that are capable of sending and
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receiving data via a specific transport.
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On successful return, it is the client's responsibility to eventually call
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I_ISMFree(*ppServerList);
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Arguments:
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pszTransportDN (IN) - Transport to query.
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pszSiteDN (IN) - Site to query.
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ppServerList - On successful return, holds a pointer to a structure
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containing the DNs of the appropriate servers or NULL. If NULL, any
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server with a value for the transport address type attribute can be
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used.
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Return Values:
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NO_ERROR - Success.
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ERROR_* - Failure.
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--*/
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DWORD
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I_ISMGetConnectionSchedule(
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LPCWSTR pszTransportDN,
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LPCWSTR pszSite1DN,
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LPCWSTR pszSite2DN,
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ISM_SCHEDULE ** ppSchedule
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);
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/*++
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Routine Description:
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Retrieve the schedule by which two given sites are connected via a specific
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transport.
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On successful return, it is the client's responsibility to eventually call
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I_ISMFree(*ppSchedule);
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Arguments:
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pszTransportDN (IN) - Transport to query.
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pszSite1DN, pszSite2DN (IN) - Sites to query.
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ppSchedule - On successful return, holds a pointer to a structure
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describing the schedule by which the two given sites are connected via
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the transport, or NULL if the sites are always connected.
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Return Values:
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NO_ERROR - Success.
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ERROR_* - Failure.
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--*/
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DWORD
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I_ISMQuerySitesByCost(
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LPCWSTR pszTransportDN, // in
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LPCWSTR pszFromSite, // in
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DWORD cToSites, // in
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LPCWSTR* rgszToSites, // in
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DWORD dwFlags, // in
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ISM_SITE_COST_INFO_ARRAY** prgSiteInfo // out
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);
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/*++
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Routine Description:
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Determine the individual costs between the From site and the To sites.
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On successful return, it is the client's responsibility to eventually call
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I_ISMFree(*prgSiteInfo);
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Arguments:
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pszTransportDN (IN) - Transport to query.
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pszFromSite (IN) - The distinguished name of the From site.
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rgszToSites (IN) - An array containing the distinguished names of the To sites.
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cToSites (IN) - The number of entries in the rgszToSites array.
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dwFlags (IN) - Unused.
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prgSiteInfo (IN) - On successful return, holds a pointer to a structure
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containing the costs between the From site and the To sites.
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Return Values:
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NO_ERROR - Success.
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ERROR_* - Failure.
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--*/
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//==============================================================================
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//
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// ISM-to-plug-in-transport API.
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//
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typedef void ISM_NOTIFY(
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IN HANDLE hNotify,
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IN LPCWSTR pszServiceName
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);
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/*++
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Routine Description:
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Called by the plug-in to notify the ISM service that a message has been
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received for the given service.
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Arguments:
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hNotify (IN) - Notification handle, as passed to the plug-in in the
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IsmStartup() call.
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pszServiceName (IN) - Service for which a message was received.
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Return Values:
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None.
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--*/
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typedef DWORD ISM_STARTUP(
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IN LPCWSTR pszTransportDN,
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IN ISM_NOTIFY * pNotifyFunction,
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IN HANDLE hNotify,
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OUT HANDLE *phIsm
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);
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ISM_STARTUP IsmStartup;
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/*++
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Routine Description:
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Initialize the plug-in.
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Arguments:
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pszTransportDN (IN) - The DN of the Inter-Site-Transport that named this
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DLL as its plug-in. The DS object may contain additional configuration
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information for the transport (e.g., the name of an SMTP server for
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an SMTP transport).
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pNotifyFunction (IN) - Function to call to notify the ISM service of pending
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messages.
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hNotify (IN) - Parameter to supply to the notify function.
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phIsm (OUT) - On successful return, holds a handle to be used in
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future calls to the plug-in for the named Inter-Site-Transport. Note
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that it is possible for more than one Inter-Site-Transport object to
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name a given DLL as its plug-in, in which case IsmStartup() will be
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called for each such object.
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Return Values:
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NO_ERROR - Successfully initialized.
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other - Failure.
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--*/
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typedef DWORD ISM_REFRESH(
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IN HANDLE hIsm,
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IN ISM_REFRESH_REASON_CODE eReason,
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IN LPCWSTR pszObjectDN OPTIONAL
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);
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ISM_REFRESH IsmRefresh;
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/*++
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Routine Description:
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Called whenever changes occur according to the reason code.
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One reason is to the Inter-Site-Transport object specified in the
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IsmStartup() call.
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Another is a change to a site in the sites container.
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Arguments:
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hIsm (IN) - Handle returned by a prior call to IsmStartup().
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dwReason (IN) - Dword indicating the reason we were called
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pszObjectDN (IN) - Object DN relating to the reason
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(Current) DN of the Inter-Site-Transport object that
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named this DLL as its plug-in. Note that this DN will differ from that
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specified in IsmStartup() if the transport DN has been renamed.
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Site DN of site that was added, renamed or deleted
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Return Values:
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NO_ERROR - Successfully updated.
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other - Failure. A failure return implies the plug-in has shut down (i.e.,
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no further calls will be made on hIsm, including an
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IsmShutdown()).
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--*/
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typedef DWORD ISM_SEND(
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IN HANDLE hIsm,
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IN LPCWSTR pszRemoteTransportAddress,
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IN LPCWSTR pszServiceName,
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IN const ISM_MSG * pMsg
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);
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ISM_SEND IsmSend;
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/*++
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Routine Description:
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Send a message over this transport.
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Arguments:
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hIsm (IN) - Handle returned by a prior call to IsmStartup().
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pszRemoteTransportAddress (IN) - Transport address of the destination
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server.
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pszServiceName (IN) - Name of the service on the remote machine that is the
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intended receiver of the message.
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pMsg (IN) - Message to send.
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Return Values:
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NO_ERROR - Message successfully queued for send.
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other - Failure.
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--*/
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typedef DWORD ISM_RECEIVE(
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IN HANDLE hIsm,
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IN LPCWSTR pszServiceName,
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OUT ISM_MSG ** ppMsg
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);
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ISM_RECEIVE IsmReceive;
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/*++
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Routine Description:
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Return the next waiting message (if any). If no message is waiting, a NULL
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message is returned. If a non-NULL message is returned, the ISM service
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is responsible for calling IsmFreeMsg(hIsm, *ppMsg) when the message is no
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longer needed.
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If a non-NULL message is returned, it is immediately dequeued. (I.e., once
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a message is returned through IsmReceive(), the transport is free to destroy
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it.)
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Arguments:
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hIsm (IN) - Handle returned by a prior call to IsmStartup().
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ppMsg (OUT) - On successful return, holds a pointer to the received message
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or NULL.
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Return Values:
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NO_ERROR - Message successfully returned (or NULL was returned,
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indicating no message is waiting).
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other - Failure.
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--*/
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typedef void ISM_FREE_MSG(
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IN HANDLE hIsm,
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IN ISM_MSG * pMsg
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);
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ISM_FREE_MSG IsmFreeMsg;
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/*++
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Routine Description:
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Frees a message returned by IsmReceive().
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Arguments:
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hIsm (IN) - Handle returned by a prior call to IsmStartup().
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pMsg (IN) - Message to free.
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Return Values:
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None.
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--*/
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typedef DWORD ISM_GET_CONNECTIVITY(
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IN HANDLE hIsm,
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OUT ISM_CONNECTIVITY ** ppConnectivity
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);
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ISM_GET_CONNECTIVITY IsmGetConnectivity;
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/*++
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Routine Description:
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|
|
Compute the costs associated with transferring data amongst sites.
|
|
|
|
On successful return, the ISM service will eventually call
|
|
IsmFreeConnectivity(hIsm, *ppConnectivity);
|
|
|
|
Arguments:
|
|
|
|
hIsm (IN) - Handle returned by a prior call to IsmStartup().
|
|
|
|
ppConnectivity (OUT) - On successful return, holds a pointer to the
|
|
ISM_CONNECTIVITY structure describing the interconnection of sites
|
|
along this transport.
|
|
|
|
Return Values:
|
|
|
|
NO_ERROR - Success.
|
|
ERROR_* - Failure.
|
|
|
|
--*/
|
|
|
|
|
|
typedef void ISM_FREE_CONNECTIVITY(
|
|
IN HANDLE hIsm,
|
|
IN ISM_CONNECTIVITY * pConnectivity
|
|
);
|
|
ISM_FREE_CONNECTIVITY IsmFreeConnectivity;
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Frees the structure returned by IsmGetConnectivity().
|
|
|
|
Arguments:
|
|
|
|
hIsm (IN) - Handle returned by a prior call to IsmStartup().
|
|
|
|
pSiteConnectivity (IN) - Structure to free.
|
|
|
|
Return Values:
|
|
|
|
None.
|
|
|
|
--*/
|
|
|
|
|
|
typedef DWORD ISM_GET_TRANSPORT_SERVERS(
|
|
IN HANDLE hIsm,
|
|
IN LPCWSTR pszSiteDN,
|
|
OUT ISM_SERVER_LIST ** ppServerList
|
|
);
|
|
ISM_GET_TRANSPORT_SERVERS IsmGetTransportServers;
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Retrieve the DNs of servers in a given site that are capable of sending and
|
|
receiving data via this transport.
|
|
|
|
On successful return of a non-NULL list, the ISM service will eventually call
|
|
IsmFreeTransportServers(hIsm, *ppServerList);
|
|
|
|
Arguments:
|
|
|
|
hIsm (IN) - Handle returned by a prior call to IsmStartup().
|
|
|
|
pszSiteDN (IN) - Site to query.
|
|
|
|
ppServerList - On successful return, holds a pointer to a structure
|
|
containing the DNs of the appropriate servers or NULL. If NULL, any
|
|
server with a value for the transport address type attribute can be
|
|
used.
|
|
|
|
Return Values:
|
|
|
|
NO_ERROR - Success.
|
|
ERROR_* - Failure.
|
|
|
|
--*/
|
|
|
|
|
|
typedef void ISM_FREE_TRANSPORT_SERVERS(
|
|
IN HANDLE hIsm,
|
|
IN ISM_SERVER_LIST * pServerList
|
|
);
|
|
ISM_FREE_TRANSPORT_SERVERS IsmFreeTransportServers;
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Frees the structure returned by IsmGetTransportServers().
|
|
|
|
Arguments:
|
|
|
|
hIsm (IN) - Handle returned by a prior call to IsmStartup().
|
|
|
|
pServerList (IN) - Structure to free.
|
|
|
|
Return Values:
|
|
|
|
None.
|
|
|
|
--*/
|
|
|
|
|
|
typedef DWORD ISM_GET_CONNECTION_SCHEDULE(
|
|
IN HANDLE hIsm,
|
|
IN LPCWSTR pszSite1DN,
|
|
IN LPCWSTR pszSite2DN,
|
|
OUT ISM_SCHEDULE ** ppSchedule
|
|
);
|
|
ISM_GET_CONNECTION_SCHEDULE IsmGetConnectionSchedule;
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Retrieve the schedule by which two given sites are connected via this
|
|
transport.
|
|
|
|
On successful return, it is the ISM service's responsibility to eventually
|
|
call IsmFreeSchedule(*ppSchedule);
|
|
|
|
Arguments:
|
|
|
|
hIsm (IN) - Handle returned by a prior call to IsmStartup().
|
|
|
|
pszSite1DN, pszSite2DN (IN) - Sites to query.
|
|
|
|
ppSchedule - On successful return, holds a pointer to a structure
|
|
describing the schedule by which the two given sites are connected via
|
|
the transport, or NULL if the sites are always connected.
|
|
|
|
Return Values:
|
|
|
|
NO_ERROR - Success.
|
|
ERROR_* - Failure.
|
|
|
|
--*/
|
|
|
|
|
|
typedef void ISM_FREE_CONNECTION_SCHEDULE(
|
|
IN HANDLE hIsm,
|
|
IN ISM_SCHEDULE * pSchedule
|
|
);
|
|
ISM_FREE_CONNECTION_SCHEDULE IsmFreeConnectionSchedule;
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Frees the structure returned by IsmGetTransportServers().
|
|
|
|
Arguments:
|
|
|
|
hIsm (IN) - Handle returned by a prior call to IsmStartup().
|
|
|
|
pSchedule (IN) - Structure to free.
|
|
|
|
Return Values:
|
|
|
|
None.
|
|
|
|
--*/
|
|
|
|
|
|
typedef void ISM_SHUTDOWN(
|
|
IN HANDLE hIsm,
|
|
IN ISM_SHUTDOWN_REASON_CODE eReason
|
|
);
|
|
ISM_SHUTDOWN IsmShutdown;
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Uninitialize transport plug-in.
|
|
|
|
Arguments:
|
|
|
|
hIsm (IN) - Handle returned by a prior call to IsmStartup().
|
|
|
|
Return Values:
|
|
|
|
None.
|
|
|
|
--*/
|
|
|
|
|
|
typedef DWORD ISM_QUERY_SITES_BY_COST(
|
|
IN HANDLE hIsm,
|
|
IN LPCWSTR pszFromSite,
|
|
IN DWORD cToSites,
|
|
IN LPCWSTR* rgszToSites,
|
|
IN DWORD dwFlags,
|
|
OUT ISM_SITE_COST_INFO_ARRAY** prgSiteInfo
|
|
);
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Determine the individual costs between the From site and the To sites.
|
|
|
|
Arguments:
|
|
|
|
pszFromSite (IN) - The distinguished name of the From site.
|
|
|
|
rgszToSites (IN) - An array containing the distinguished names of the To sites.
|
|
|
|
cToSites (IN) - The number of entries in the rgszToSites array.
|
|
|
|
dwFlags (IN) - Unused.
|
|
|
|
prgSiteInfo (IN) - On successful return, holds a pointer to a structure
|
|
containing the costs between the From site and the To sites.
|
|
|
|
Return Values:
|
|
|
|
NO_ERROR - Success.
|
|
ERROR_* - Failure.
|
|
|
|
--*/
|
|
|
|
|
|
typedef void ISM_FREE_SITE_COST_INFO(
|
|
IN HANDLE hIsm,
|
|
IN ISM_SITE_COST_INFO_ARRAY *rgSiteCostInfo
|
|
);
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Frees the structure returned by ISM_QUERY_SITES_BY_COST().
|
|
|
|
Arguments:
|
|
|
|
hIsm (IN) - Handle returned by a prior call to IsmStartup().
|
|
|
|
rgSiteCostInfo (IN) - Structure to free.
|
|
|
|
Return Values:
|
|
|
|
None.
|
|
|
|
--*/
|
|
|
|
|
|
#endif // #ifndef MIDL_PASS
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // __ISMAPI_H__
|