159 lines
3.7 KiB
C
159 lines
3.7 KiB
C
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/*++
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Copyright (c) 1996 Microsoft Corporation
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Module Name:
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fmvote.c
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Abstract:
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Cluster FM Global Update processing routines.
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Author:
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Sunita shrivastava (sunitas) 24-Apr-1996
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Revision History:
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--*/
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#include "fmp.h"
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#include "ntrtl.h"
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#define LOG_MODULE FMVOTE
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/****
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@func DWORD | FmpGumVoteHandler| This is invoked by gum when fm requests
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a vote for a given context.
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@parm IN DWORD | dwContext| The gum update type for which the vote is
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being collected.
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@parm IN DWORD | dwInputBufLength| The length of the input buffer.
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@parm IN PVOID | pInputBuf| A pointer to the input buffer based on
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which a vote must be cast.
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@parm IN DWORD | dwVoteLength | The length of the buffer pointed to
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by pVoteBuf.
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@parm OUT POVID | pVoteBuf | A pointer to a buffer of size dwVoteLength
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where the vote must be cast.
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@comm The votes are collected by gum and returned to the node that is taking
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the poll.
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@rdesc Returns a result code. ERROR_SUCCESS on success.
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@xref <f DmSwitchToNewQuorumLog>
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****/
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DWORD
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WINAPI
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FmpGumVoteHandler(
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IN DWORD dwContext,
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IN DWORD dwInputBufLength,
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IN PVOID pInputBuf,
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IN DWORD dwVoteLength,
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OUT PVOID pVoteBuf
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)
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{
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DWORD dwStatus = ERROR_SUCCESS;
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if ( !FmpFMGroupsInited ||
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FmpShutdown )
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{
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return(ERROR_NOT_READY);
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}
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switch ( dwContext )
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{
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case FmUpdatePossibleNodeForResType:
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dwStatus = FmpVotePossibleNodeForResType(dwInputBufLength,
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(LPCWSTR)pInputBuf, dwVoteLength, pVoteBuf);
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break;
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default:
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dwStatus = ERROR_REQUEST_ABORTED;
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}
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return(dwStatus);
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} // FmpGumVoteHandler
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/****
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@func DWORD | FmpGumVoteHandler| This is invoked by gum when fm requests
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a vote for a given context.
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@parm IN DWORD | dwContext| The gum update type for which the vote is
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being collected.
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@parm IN DWORD | dwInputBufLength| The length of the input buffer.
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@parm IN PVOID | pInputBuf| A pointer to the input buffer based on
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which a vote must be cast.
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@parm IN DWORD | dwVoteLength | The length of the buffer pointed to
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by pVoteBuf.
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@parm OUT POVID | pVoteBuf | A pointer to a buffer of size dwVoteLength
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where the vote must be cast.
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@comm The votes are collected by gum and returned to the node that is taking
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the poll.
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@rdesc Returns a result code. ERROR_SUCCESS on success.
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@xref <f DmSwitchToNewQuorumLog>
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****/
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DWORD FmpVotePossibleNodeForResType(
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IN DWORD dwInputBufLength,
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IN LPCWSTR lpszResType,
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IN DWORD dwVoteLength,
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OUT PVOID pVoteBuf
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)
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{
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DWORD dwStatus = ERROR_SUCCESS;
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DWORD dwVoteStatus;
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PFMP_VOTE_POSSIBLE_NODE_FOR_RESTYPE pVoteResType;
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PFM_RESTYPE pResType=NULL;
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if (dwVoteLength != sizeof(FMP_VOTE_POSSIBLE_NODE_FOR_RESTYPE))
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return (ERROR_INVALID_PARAMETER);
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pVoteResType = (PFMP_VOTE_POSSIBLE_NODE_FOR_RESTYPE)pVoteBuf;
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pResType = OmReferenceObjectById(ObjectTypeResType, lpszResType);
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if (!pResType)
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return (ERROR_INVALID_PARAMETER);
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dwVoteStatus = FmpRmLoadResTypeDll(pResType);
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pVoteResType->dwNodeId = NmLocalNodeId;
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pVoteResType->dwSize = sizeof(FMP_VOTE_POSSIBLE_NODE_FOR_RESTYPE);
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if (dwVoteStatus == ERROR_SUCCESS)
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pVoteResType->bPossibleNode = TRUE;
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else
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pVoteResType->bPossibleNode = FALSE;
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if (pResType) OmDereferenceObject(pResType);
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return(dwStatus);
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}
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