515 lines
14 KiB
C
515 lines
14 KiB
C
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#ifndef _WINSQUE_
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#define _WINSQUE_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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TODO --
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Maybe: Coalesce different queue structures into one.
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*/
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/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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queue.c
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Abstract:
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This is the header file to be included for calling queue.c functions
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Functions:
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Portability:
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This module is portable.
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Author:
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Pradeep Bahl (PradeepB) Dec-1992
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Revision History:
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Modification Date Person Description of Modification
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------------------ ------- ---------------------------
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--*/
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/*
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defines
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*/
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#include <time.h>
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#include "wins.h"
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#include "comm.h"
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#include "assoc.h"
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#include "nmsdb.h"
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#include "nmsmsgf.h"
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#include "nmschl.h"
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#define QUE_NBT_WRK_ITM_SZ sizeof(NBT_REQ_WRK_ITM_T)
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/*
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QUE_INIT_BUFF_HEAP_SIZE -- This is the initial size of the heap
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for allocating queue items for the various
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queues
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*/
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#define QUE_INIT_BUFF_HEAP_SIZE 10000
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#define WINS_QUEUE_HWM 500
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#define WINS_QUEUE_HWM_MAX 5000
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#define WINS_QUEUE_HWM_MIN 50
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/*
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macros
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*/
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/*
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externs
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*/
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//
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// forward declarator
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//
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struct _QUE_HD_T;
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extern struct _QUE_HD_T *pWinsQueQueHd[];
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/*
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forward declaration
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*/
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typedef struct _QUE_HD_T QUE_HD_T;
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extern QUE_HD_T QueNbtWrkQueHd; //head for nbt req queue
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#if REG_N_QUERY_SEP > 0
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extern QUE_HD_T QueOtherNbtWrkQueHd; //head for nbt reg. req queue
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extern DWORD QueOtherNbtWrkQueMaxLen;
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#endif
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extern QUE_HD_T QueRplPullQueHd; //head for rpl pull thread's queue
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extern QUE_HD_T QueRplPushQueHd; //head for rpl push thread's queue
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extern QUE_HD_T QueNmsNrcqQueHd; //head for challenge queue used by NBT thds
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extern QUE_HD_T QueNmsRrcqQueHd; //head for challenge queue used by Replicator
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extern QUE_HD_T QueNmsCrqQueHd; //head for response queue for challenges sent
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extern QUE_HD_T QueWinsTmmQueHd; //head for timer manager queue
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extern QUE_HD_T QueWinsScvQueHd; //head for scavenger queue
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extern QUE_HD_T QueInvalidQueHd; //head for an invalid queue. Never inited
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extern HANDLE QueBuffHeapHdl; //handle to heap for use for queue items
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/*
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structure definitions
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*/
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/*
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QUE_TYP_E -- enumerator for the various queue types.
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Used by QueInsertWrkItm and its callers
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Used by QueRemoveWrkItm and its callers
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This enumerator's value index the spQueHd (queue.c) array. Do not change the
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order of entries without changing QueHd's static initialization appropriately
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*/
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typedef enum __QUE_TYP_E {
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QUE_E_NBT_REQ = 0, //nbt req queue
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#if REG_N_QUERY_SEP > 0
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QUE_E_OTHER_NBT_REQ, //reg/rel nbt req queue
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#endif
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QUE_E_RPLPULL, //pull thread queue
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QUE_E_RPLPUSH, //push thread queue
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QUE_E_NMSNRCQ, //nbt request challenge queue
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QUE_E_NMSRRCQ, //replicator request challenge queue
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QUE_E_NMSCRQ, //challenge response queue
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QUE_E_WINSTMQ, //timer queue
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QUE_E_WINSSCVQ, //Scavenger queue
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QUE_E_UNKNOWN_TYPQ, //Unknown type of queue
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QUE_E_TOTAL_NO_QS //Total no of queues
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} QUE_TYP_E, *PQUE_TYP_E;
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//
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// Work items for the different queues.
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//
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// NOTE NOTE NOTE -- The work items must have LIST_ENTRY
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// as the first field in them.
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//
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typedef struct _NBT_REQ_WRK_ITM_T {
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LIST_ENTRY Head;
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QUE_TYP_E QueTyp_e;
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COMM_HDL_T DlgHdl;
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MSG_T pMsg;
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MSG_LEN_T MsgLen;
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} NBT_REQ_WRK_ITM_T, *PNBT_REQ_WRK_ITM_T;
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//
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// CHL_REQ_WRK_ITM_T -- Name challenge queue work item. This is a work item
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// that can be used for any of the four name challenge
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// queues NRCQ, RRCQ, and CRQ
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//
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typedef struct _CHL_REQ_WRK_ITM_T {
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LIST_ENTRY Head;
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QUE_TYP_E QueTyp_e;
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COMM_HDL_T DlgHdl; //dlg handle
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MSG_T pMsg; //NBT message recd
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MSG_LEN_T MsgLen; //msg len
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DWORD QuesNamSecLen; //Length of question name sec.
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NMSDB_ROW_INFO_T NodeToReg; //Info of node To Register
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NMSDB_NODE_ADDS_T NodeAddsInCnf;
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BOOL fGroupInCnf; //whether the cnf record is group or unique
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DWORD OwnerIdInCnf;
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// BYTE NodeTypInCnf;
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// BYTE EntTypInCnf;
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COMM_ADD_T AddToReg;
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//COMM_ADD_T AddOfNodeInCnf;
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COMM_ADD_T AddOfRemWins; //address of remote WINS to
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//be sent the name reg request
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//so that the version number
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//of the record that caused
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//the conflict gets updated
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NMSCHL_CMD_TYP_E CmdTyp_e;
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WINS_CLIENT_E Client_e;
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NMSMSGF_NAM_REQ_TYP_E ReqTyp_e; //query or release
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DWORD NoOfAddsToUse;
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DWORD NoOfAddsToUseSv;
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} CHL_REQ_WRK_ITM_T, *PCHL_REQ_WRK_ITM_T;
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//
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// The response work item is the same as the challenge work item
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//
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typedef struct _CHL_REQ_WRK_ITM_T CHL_RSP_WRK_ITM_T, *PCHL_RSP_WRK_ITM_T;
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typedef struct _QUE_HD_T {
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LIST_ENTRY Head;
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CRITICAL_SECTION CrtSec;
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HANDLE EvtHdl;
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HANDLE HeapHdl;
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DWORD NoOfEntries;
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} QUE_HD_T, *PQUE_HD_T;
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/*
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QUE_CMD_TYP_E - Various Command Types that can be specified in the work item
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of one or more work queues
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*/
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typedef enum QUE_CMD_TYP_E {
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QUE_E_CMD_REPLICATE = 0, //Replicate command directd to the Pull
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//thread as a result of administrative
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//action
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QUE_E_CMD_PULL_RANGE, //Pull Range command directd to the Pull
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//thread as a result of administrative
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//action
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QUE_E_CMD_REPLICATE_MSG, //Replicate message received by COMSYS TCP
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//thread
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QUE_E_CMD_SND_PUSH_NTF, //push update count to remote WINS. This is
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//a cmd to the Pull thread at the local WINS
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//(by an NBT thread) and a request to the
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//Pull thread at the remote WINS.
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QUE_E_CMD_SND_PUSH_NTF_PROP, //identical to the above except that
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//this one requests propagation along the
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//the chain of WINSs (Pull Partners)
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QUE_E_CMD_HDL_PUSH_NTF, //handle Push notification from a remote WINS.
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//This is a command forwarded to the PULL
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//thread by the Push thread
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QUE_E_CMD_CONFIG, //set configuration request
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QUE_E_CMD_DELETE_WINS, //Delete WINS from add-vers map tables (records
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//are also deleted)
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QUE_E_CMD_SET_TIMER, //set timer request to TMM
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QUE_E_CMD_CANCEL_TIMER, //cancel timer request to TMM
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QUE_E_CMD_MODIFY_TIMER, //modify timer reqyest to TMM
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QUE_E_CMD_TIMER_EXPIRED, //response to an earlier set timer request
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QUE_E_CMD_SCV_ADMIN, // Admin initiated request
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QUE_E_CMD_ADDR_CHANGE // Address of the local machine changed
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} QUE_CMD_TYP_E, *PQUE_CMD_TYP_E;
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/*
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Work item for the Replicator's queue
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It is used in the work queue of both the PULL thread and the
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PUSH thread.
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CmdTyp_e pClientCtx
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E_RPL NULL
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E_CONFIG address of list of RPL_CONFIG_REC_T records
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terminated by NULL
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E_REPLICATE address of list of RPL_CONFIG_REC_T records
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terminated by NULL
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E_TIMER_EXPIRE address of list of RPL_CONFIG_REC_T records
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terminated by NULL
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*/
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//
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// The replicator, timer and Scavenger work items must have LIST_ENTRY,
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// QUE_TYP_E, and QUE_CMD_TYP_E as the top 3 fields in this order.
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//
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// Refer RplPullInit and RplPushInit to discover why.
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//
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typedef struct _QUE_RPL_REQ_WRK_ITM_T {
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LIST_ENTRY Head;
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QUE_TYP_E QueTyp_e;
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QUE_CMD_TYP_E CmdTyp_e;
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//
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// Don't change the order of the three fields above. Also,
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// they need to be at the top. See comment above
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//
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COMM_HDL_T DlgHdl;
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MSG_T pMsg;
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MSG_LEN_T MsgLen;
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LPVOID pClientCtx; /*client context. For example,
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*it may point to config
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*records (RPL_CONFIG_REC_T
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*in case the cmd is E_CONFIG
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*/
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DWORD MagicNo; //used by IsTimeoutToBeIgnored()
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//in rplpull.c
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} QUE_RPL_REQ_WRK_ITM_T, *PQUE_RPL_REQ_WRK_ITM_T;
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//
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// SCV_REQ_WRK_ITM_E
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//
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typedef enum WINSINTF_SCV_OPC_E QUE_SCV_OPC_E, *PQUE_SCV_OPC_E;
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typedef struct _QUE_SCV_REQ_WRK_ITM_T {
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LIST_ENTRY Head;
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QUE_TYP_E QueTyp_e;
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QUE_CMD_TYP_E CmdTyp_e;
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WINSINTF_SCV_OPC_E Opcode_e;
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DWORD Age;
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BOOL fForce;
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} QUE_SCV_REQ_WRK_ITM_T, *PQUE_SCV_REQ_WRK_ITM_T;
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/*
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Que of timer manager
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*/
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typedef struct _QUE_TMM_REQ_WRK_ITM_T {
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LIST_ENTRY Head;
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QUE_TYP_E QueTyp_e;
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QUE_CMD_TYP_E CmdTyp_e;
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//
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// Don't change the order of the three fields above. Also,
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// they need to be at the top. They have to be in the same order
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// and position within this and the _QUE_RPL_REQ_WRK_ITM_T data
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// structure
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//
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DWORD ReqId; //id of request
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WINS_CLIENT_E Client_e; //maybe not needed. Check ??
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time_t TimeInt; //Time Interval
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time_t AbsTime; //Absolute time
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DWORD DeltaTime; //Delta time
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HANDLE RspEvtHdl; //event to signal for response
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PQUE_HD_T pRspQueHd; //Que to put the response on
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LPVOID pClientCtx; /*client context. For example,
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*it may point to config
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*records (RPL_CONFIG_REC_T
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*in case the cmd is E_CONFIG
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*/
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DWORD MagicNo; //used by IsTimeoutToBeIgnored()
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//in rplpull.c
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} QUE_TMM_REQ_WRK_ITM_T, *PQUE_TMM_REQ_WRK_ITM_T;
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/*
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function prototypes
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*/
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extern
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STATUS
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QueInsertNbtWrkItm(
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IN PCOMM_HDL_T pDlgHdl,
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IN MSG_T pMsg,
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IN MSG_LEN_T MsgLen
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);
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extern
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STATUS
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QueRemoveNbtWrkItm(
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OUT PCOMM_HDL_T pDlgHdl,
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OUT PMSG_T ppMsg,
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OUT PMSG_LEN_T pMsgLen
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);
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#if REG_N_QUERY_SEP > 0
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extern
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STATUS
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QueInsertOtherNbtWrkItm(
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IN PCOMM_HDL_T pDlgHdl,
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IN MSG_T pMsg,
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IN MSG_LEN_T MsgLen
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);
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extern
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STATUS
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QueRemoveOtherNbtWrkItm(
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OUT PCOMM_HDL_T pDlgHdl,
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OUT PMSG_T ppMsg,
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OUT PMSG_LEN_T pMsgLen
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);
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#endif
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extern
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STATUS
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QueInsertChlReqWrkItm(
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IN NMSCHL_CMD_TYP_E CmdTyp_e,
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IN WINS_CLIENT_E Client_e,
|
||
|
|
IN PCOMM_HDL_T pDlgHdl,
|
||
|
|
IN MSG_T pMsg,
|
||
|
|
IN MSG_LEN_T MsgLen,
|
||
|
|
IN DWORD QuesNamSecLen,
|
||
|
|
IN PNMSDB_ROW_INFO_T pNodeToReg,
|
||
|
|
IN PNMSDB_STAT_INFO_T pNodeInCnf,
|
||
|
|
//IN PCOMM_ADD_T pAddOfNodeInCnf,
|
||
|
|
IN PCOMM_ADD_T pAddOfRemWins
|
||
|
|
);
|
||
|
|
|
||
|
|
extern
|
||
|
|
STATUS
|
||
|
|
QueRemoveChlReqWrkItm(
|
||
|
|
IN HANDLE EvtHdl,
|
||
|
|
IN OUT LPVOID *ppaWrkItm,
|
||
|
|
OUT LPDWORD pNoOfReqs
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
extern
|
||
|
|
STATUS
|
||
|
|
QueInsertChlRspWrkItm(
|
||
|
|
IN PCOMM_HDL_T pDlgHdl,
|
||
|
|
IN MSG_T pMsg,
|
||
|
|
IN MSG_LEN_T MsgLen
|
||
|
|
);
|
||
|
|
|
||
|
|
extern
|
||
|
|
STATUS
|
||
|
|
QueRemoveChlRspWrkItm(
|
||
|
|
OUT LPVOID *ppWrkItm
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
extern
|
||
|
|
STATUS
|
||
|
|
QueInsertWrkItm (
|
||
|
|
IN PLIST_ENTRY pWrkItm,
|
||
|
|
IN QUE_TYP_E QueTyp_e,
|
||
|
|
IN PQUE_HD_T pQueHdPassed
|
||
|
|
);
|
||
|
|
|
||
|
|
extern
|
||
|
|
STATUS
|
||
|
|
QueGetWrkItm (
|
||
|
|
IN QUE_TYP_E QueTyp_e,
|
||
|
|
OUT LPVOID *ppWrkItm
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
extern
|
||
|
|
VOID
|
||
|
|
QueAllocWrkItm(
|
||
|
|
IN HANDLE HeapHdl,
|
||
|
|
IN DWORD Size,
|
||
|
|
OUT LPVOID *ppBuf
|
||
|
|
);
|
||
|
|
|
||
|
|
extern
|
||
|
|
VOID
|
||
|
|
QueDeallocWrkItm(
|
||
|
|
IN HANDLE HeapHdl,
|
||
|
|
IN LPVOID pBuff
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
extern
|
||
|
|
STATUS
|
||
|
|
QueInsertWrkItmAtHdOfList (
|
||
|
|
IN PLIST_ENTRY pWrkItm,
|
||
|
|
IN QUE_TYP_E QueTyp_e,
|
||
|
|
IN PQUE_HD_T pQueHdPassed
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
extern
|
||
|
|
STATUS
|
||
|
|
QueInsertRplPushWrkItm (
|
||
|
|
IN PLIST_ENTRY pWrkItm,
|
||
|
|
IN BOOL fAlreadyInCrtSec
|
||
|
|
);
|
||
|
|
|
||
|
|
extern
|
||
|
|
STATUS
|
||
|
|
QueInsertNetNtfWrkItm (
|
||
|
|
IN PLIST_ENTRY pWrkItm
|
||
|
|
);
|
||
|
|
|
||
|
|
extern
|
||
|
|
STATUS
|
||
|
|
QueInsertSndNtfWrkItm (
|
||
|
|
IN PLIST_ENTRY pWrkItm
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
extern
|
||
|
|
VOID
|
||
|
|
QueChlWaitForRsp(
|
||
|
|
VOID
|
||
|
|
);
|
||
|
|
extern
|
||
|
|
VOID
|
||
|
|
QueChlNoWaitForRsp(
|
||
|
|
VOID
|
||
|
|
);
|
||
|
|
|
||
|
|
extern
|
||
|
|
__inline
|
||
|
|
STATUS
|
||
|
|
QueInsertScvWrkItm(
|
||
|
|
PLIST_ENTRY pWrkItm
|
||
|
|
);
|
||
|
|
|
||
|
|
extern
|
||
|
|
__inline
|
||
|
|
STATUS
|
||
|
|
QueRemoveScvWrkItm(
|
||
|
|
LPVOID *ppWrkItm
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
extern
|
||
|
|
VOID
|
||
|
|
WinsQueInit(
|
||
|
|
LPTSTR pName,
|
||
|
|
PQUE_HD_T pQueHd
|
||
|
|
);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif //_WINSQUE_
|