windows-nt/Source/XPSP1/NT/net/rras/ipx/sap/workers.h

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/*++
Copyright (c) 1995 Microsoft Corporation
Module Name:
net\routing\ipx\sap\workers.h
Abstract:
Header file for agent work items
Author:
Vadim Eydelman 05-15-1995
Revision History:
--*/
#ifndef _SAP_WORKERS_
#define _SAP_WORKERS_
// Max number of pending recv work items
extern LONG MaxUnprocessedRequests;
// Minimum number of queued recv requests
extern LONG MinPendingRequests;
// How often to check on pending triggered update
extern ULONG TriggeredUpdateCheckInterval;
// How many requests to send if no response received within check interval
extern ULONG MaxTriggeredUpdateRequests;
// Whether to respond for internal servers that are not registered with SAP
// through the API calls (for standalone service only)
extern ULONG RespondForInternalServers;
// Delay in response to general reguests for specific server type
// if local servers are included in the packet
extern ULONG DelayResponseToGeneral;
// Delay in sending change broadcasts if packet is not full
extern ULONG DelayChangeBroadcast;
// Workers that are enqueued for io processing
typedef struct _IO_WORKER {
WORKERFUNCTION worker;
IO_PARAM_BLOCK io;
} IO_WORKER, *PIO_WORKER;
// Workers that are enqueued for timer processing
typedef struct _TIMER_WORKER {
WORKERFUNCTION worker;
TM_PARAM_BLOCK tm;
} TIMER_WORKER, *PTIMER_WORKER;
// Workers that are enqueued to receive LPC request
typedef struct _LPC_WORKER {
WORKERFUNCTION worker;
LPC_PARAM_BLOCK lpc;
} LPC_WORKER, *PLPC_WORKER;
/*
VOID
ScheduleWorkItem (
WORKERFUNCTION *worker
);
*/
#define ScheduleWorkItem(worker) RtlQueueWorkItem(*worker,worker,0)
#define ProcessCompletedIORequest(ioreq) \
ScheduleWorkItem (&CONTAINING_RECORD(ioreq,IO_WORKER,io)->worker)
#define ProcessCompletedTimerRequest(tmreq) \
ScheduleWorkItem (&CONTAINING_RECORD(tmreq,TIMER_WORKER,tm)->worker);
#define ProcessCompletedLpcRequest(lpcreq) \
ScheduleWorkItem (&CONTAINING_RECORD(lpcreq,LPC_WORKER,lpc)->worker)
/*++
*******************************************************************
I n i t i a l i z e W o r k e r s
Routine Description:
Initialize heap to be used for allocation of work items
Arguments:
None
Return Value:
NO_ERROR - heap was initialized OK
other - operation failed (windows error code)
*******************************************************************
--*/
DWORD
InitializeWorkers (
HANDLE RecvEvent
);
/*++
*******************************************************************
S h u t d o w n W o r k e r s
Routine Description:
Stops new worker creation and signals event when all
workers are deleted
Arguments:
doneEvent - event to be signalled when all workers are deleted
Return Value:
None
*******************************************************************
--*/
VOID
ShutdownWorkers (
IN HANDLE doneEvent
);
/*++
*******************************************************************
D e l e t e W o r k e r s
Routine Description:
Deletes heap used for work items
Arguments:
None
Return Value:
None
*******************************************************************
--*/
VOID
DeleteWorkers (
void
);
VOID
AddRecvRequests (
LONG count
);
VOID
RemoveRecvRequests (
LONG count
);
/*++
*******************************************************************
I n i t R e q I t e m
Routine Description:
Allocate and initialize IO request item
Enqueue the request
Arguments:
None
Return Value:
NO_ERROR - item was initialized and enqueued OK
other - operation failed (windows error code)
*******************************************************************
--*/
DWORD
InitReqItem (
void
);
/*++
*******************************************************************
I n i t R e s p I t e m
Routine Description:
Allocate and initialize SAP response item
Call ProcessRespItem to fill the packet and send it
Arguments:
intf - pointer to interface control block to send on
svrType - type of servers to put in response packet
dst - where to send the response packet
bcast - are we responding to broadcasted request
Return Value:
NO_ERROR - item was initialized and enqueued OK
other - operation failed (windows error code)
*******************************************************************
--*/
DWORD
InitRespItem (
PINTERFACE_DATA intf,
USHORT svrType,
PIPX_ADDRESS_BLOCK dst,
BOOL bcast
);
/*++
*******************************************************************
I n i t G n e a r I t e m
Routine Description:
Allocate and initialize GETNEAREST response work item
Arguments:
intf - pointer to interface control block to send on
svrType - type of servers to put in response packet
dst - where to send the response packet
Return Value:
NO_ERROR - item was initialized and enqueued OK
other - operation failed (windows error code)
*******************************************************************
--*/
DWORD
InitGnearItem (
PINTERFACE_DATA intf,
USHORT svrType,
PIPX_ADDRESS_BLOCK dest
);
/*++
*******************************************************************
I n i t B c a s t I t e m
Routine Description:
Allocate and initialize broadcast item
Arguments:
intf - pointer to interface control block to send on
chngEnum - enumeration handle in SDB change queue to track changed servers
Return Value:
NO_ERROR - item was initialized and enqueued OK
other - operation failed (windows error code)
*******************************************************************
--*/
DWORD
InitBcastItem (
PINTERFACE_DATA intf
);
/*++
*******************************************************************
I n i t S r e q I t e m
Routine Description:
Allocate and initialize send request item (send SAP request on interface)
Arguments:
intf - pointer to interface control block to send on
Return Value:
NO_ERROR - item was initialized and enqueued OK
other - operation failed (windows error code)
*******************************************************************
--*/
DWORD
InitSreqItem (
PINTERFACE_DATA intf
);
/*++
*******************************************************************
I n i t L P C I t e m
Routine Description:
Allocate and initialize LPC work item
Arguments:
None
Return Value:
NO_ERROR - item was initialized and enqueued OK
other - operation failed (windows error code)
*******************************************************************
--*/
DWORD
InitLPCItem (
void
);
/*++
*******************************************************************
I n i t T r e q I t e m
Routine Description:
Allocate and initialize triggered request item (send SAP request on interface
and wait for responces to arrive)
Arguments:
intf - pointer to interface control block to send on
Return Value:
NO_ERROR - item was initialized and enqueued OK
other - operation failed (windows error code)
*******************************************************************
--*/
DWORD
InitTreqItem (
PINTERFACE_DATA intf
);
#endif