121 lines
2.7 KiB
C
121 lines
2.7 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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timer.c
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Abstract:
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Cluster FM callback routines to be invoked on a timer
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Author:
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Sunita shrivastava (sunitas) 24-Sep-1998
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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 TIMER
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/****
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@func DWORD | FmpQueueTimerActivity| 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 | dwInterval| The time in msec to wait.
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@parm IN PFN_TIMER_CALLBACK | pfnTimerCb | The callback funtion
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to be invoked when the given time elapses.
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@parm IN PVOID | pContext| A pointer to a context structure that is
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passed back to the callback function.
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@comm It is assumed that FM wants to use one shot timers.
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@rdesc Returns a result code. ERROR_SUCCESS on success.
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@xref <f AddTimerActivity>
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****/
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DWORD
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FmpQueueTimerActivity(
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IN DWORD dwInterval,
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IN PFN_TIMER_CALLBACK pfnTimerCb,
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IN PVOID pContext
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)
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{
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HANDLE hTimer = NULL;
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DWORD dwStatus;
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hTimer = CreateWaitableTimer(NULL, FALSE, NULL);
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if (!hTimer)
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{
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dwStatus = ERROR_SUCCESS;
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CL_LOGFAILURE(dwStatus);
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goto FnExit;
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}
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//register the timer for this log with the activity timer thread
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dwStatus = AddTimerActivity(hTimer, dwInterval, 0, pfnTimerCb, pContext);
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if (dwStatus != ERROR_SUCCESS)
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{
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CloseHandle(hTimer);
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goto FnExit;
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}
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FnExit:
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return(dwStatus);
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} // FmpQueueTimerActivity
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/****
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@func DWORD | FmpReslistOnlineRetryCb| This is invoked by timer
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activity thread to bring a resource list online again.
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@parm IN VOID | pContext| a pointer to PFM_RESLIST_ONLINE_RETRY_INFO
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structure containing information about the group and
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resources to bring online.
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@comm We dont do the work here since the timer lock is held and we
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want to avoid acquiring the group lock while the timer lock
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is held.
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@rdesc Returns a result code. ERROR_SUCCESS on success.
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@xref <f FmpWorkerThread> <f FmpOnlineResourceList>
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****/
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void
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WINAPI
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FmpReslistOnlineRetryCb(
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IN HANDLE hTimer,
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IN PVOID pContext
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)
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{
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ClRtlLogPrint(LOG_NOISE,
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"[FM] FmpResListOnlineRetryCb: Called to retry bringing the group online\r\n");
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//post a work item, since we dont wont to acquire group locks
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//while the timer lock is acquired
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//pass hTimer as second Context value to be used by RemoveTimerActivity
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FmpPostWorkItem(FM_EVENT_INTERNAL_RETRY_ONLINE, pContext,
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(ULONG_PTR)hTimer);
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return;
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}
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