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182 lines
6.1 KiB
C
182 lines
6.1 KiB
C
/*
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File: PPCPort.c
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Contains: PPCPort Management Functions.
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Written by: Sangam
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Copyright: © 1990-1992 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<12> 4/14/92 BBM <JSM>: Remove unfinished PPC code that is under the contitional
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“TheFutute”, and remove the conditional “CubeE” since that is
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reality. Remove conditionals, since all they do is confuse.
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<11> 10/4/91 JSM Change PsychoticFarmerOrLater conditionals to TheFuture.
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<10> 9/29/91 DTY Conditionalize out <9> for CubeE.
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<9> 6/4/91 EMT Roll in StoreAndForward Revisions
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<8> 11/15/90 EMT <stb> Fix priority 1 bug in KillReadAndWrite
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<7> 11/6/90 EMT use STATIC in place of static for link maps
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<6> 10/30/90 EMT Seperate Read and Write PB's into their own queue's.
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<5> 9/21/90 EMT Update constants, types, and field names as dictated by
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PPCToolBox.h
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<10> 7/10/90 dba fix C warnings
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<9> 6/28/90 S To Improve dynamic allocation scheme for the ports.
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<8> 3/20/90 S Bug Fix in GetPortNames Call.
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<7> 2/28/90 S To support Guest Selection in GetPortNames.
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<6> 2/27/90 S To Make authRequest nonOptional.
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<1.0> 9/18/89 CVC Adding PPC toolbox for the first time.
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Old Revision History:
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06/05/89 Sangam New Today
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07/20/89 Sangam 1.0d2 release today!
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08/17/89 Sangam Fixed a bug in FreeSession Table
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09/22/89 Sangam Removed destportName and destlocname from session data structure
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Changed SetSessionTable accordingly
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09/25/89 sangam Added support for 'more' in PPCWrite calls
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11/17/89 sangam Fixed RemovePortSessionQ bug
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*/
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#include "PPCCommon.h"
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STATIC QUEUE *QueueFromSessRefNum(unsigned long sessRefNum,PPCGlobalParamsPtr ppcglobPtr)
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{
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QUEUE *SessionQueue;
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SessionQueue = NULL; // <25>
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if(sessRefNum)
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{
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if ((sessRefNum & LocSessType) == LocSessType)
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SessionQueue = &ppcglobPtr->LocSessQueue;
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else if ((sessRefNum & NetSessType) == NetSessType)
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SessionQueue = &ppcglobPtr->RemSessQueue;
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else if ((sessRefNum & IpmSessType) == IpmSessType)
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SessionQueue = &ppcglobPtr->IPMSessQueue;
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}
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return(SessionQueue);
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}
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STATIC Boolean SessRefNumCompare(CommonSessionParamsPtr sessPtr,PPCSessRefNum sessRefNum)
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{
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return(sessPtr->sessRefNum == sessRefNum);
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}
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CommonSessionParamsPtr SessRefNumtoPtr(PPCSessRefNum sessRefNum,PPCGlobalParamsPtr ppcglobPtr)
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{
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QUEUE *SessionQueue;
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CommonSessionParamsPtr sessPtr;
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sessPtr = NULL;
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if(SessionQueue = QueueFromSessRefNum(sessRefNum,ppcglobPtr))
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sessPtr = SearchQueue(SessionQueue,sessRefNum,(SearchFuncPtr)SessRefNumCompare,1);
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return(sessPtr);
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}
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CommonSessionParamsPtr DeleteSessByRefNum(PPCSessRefNum sessRefNum,PPCGlobalParamsPtr ppcglobPtr)
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{
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QUEUE *SessionQueue;
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CommonSessionParamsPtr sessPtr;
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sessPtr = NULL;
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if(SessionQueue = QueueFromSessRefNum(sessRefNum,ppcglobPtr))
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sessPtr = DeleteFromQueue(SessionQueue,sessRefNum,(SearchFuncPtr)SessRefNumCompare);
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return(sessPtr);
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}
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/*---------------------------------------------------------------------------------------------------
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GetSessionRefNum is responsible for returning a unique refnum for a given session kind.
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---------------------------------------------------------------------------------------------------*/
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unsigned long GetSessionRefNum(unsigned char sessUse,PPCGlobalParamsPtr ppcglobPtr)
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{
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unsigned long sessRefNum;
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unsigned short saveint;
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saveint = spl(kNoInterrupts);
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sessRefNum = ppcglobPtr->nextSessRefNum;
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if (sessUse == locUse)
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sessRefNum |= LocSessType;
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else if (sessUse == netUse)
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sessRefNum |= NetSessType;
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else
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sessRefNum |= IpmSessType;
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if (ppcglobPtr->nextSessRefNum == MaxSessRefNum)
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ppcglobPtr->nextSessRefNum =1;
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else
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ppcglobPtr->nextSessRefNum+=1;
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spl(saveint);
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return sessRefNum;
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}
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/*---------------------------------------------------------------------------------------------------
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SetSessionTable is responsible for initializing some of the common fields in a session header.
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This procedure also gets a unique Session refnum for the session.
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---------------------------------------------------------------------------------------------------*/
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void SetSessionTable(CommonSessionParamsPtr sessPtr,
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PPCPortEntryPtr portPtr,
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PPCGlobalParamsPtr ppcglobPtr)
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{
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sessPtr->sessRefNum = GetSessionRefNum(sessPtr->sessUse, ppcglobPtr);
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sessPtr->conRef = 0;
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if(sessPtr->portEntry = portPtr) // <25>
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++portPtr->sessCount; // <25>
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sessPtr->endPB = nil;
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sessPtr->readMore = false;
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sessPtr->writeHdr = true;
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} // SetSessionTable
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STATIC Boolean PortSessCompare(CommonSessionParamsPtr sessPtr,PPCPortEntryPtr portPtr)
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{
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return(sessPtr->portEntry == portPtr);
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}
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/*---------------------------------------------------------------------------------------------------
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CleanSessions kills all sessions for a given port.
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---------------------------------------------------------------------------------------------------*/
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void CleanSessions(PPCPortEntryPtr portPtr,PPCGlobalParamsPtr ppcglobPtr)
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{
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CommonSessionParamsPtr sessPtr;
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while(sessPtr = DeleteFromQueue(&ppcglobPtr->LocSessQueue,(unsigned long)portPtr,(SearchFuncPtr)PortSessCompare))
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{
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EndLocalSession(nil, sessPtr, ppcglobPtr);
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}
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while(sessPtr = DeleteFromQueue(&ppcglobPtr->RemSessQueue,(unsigned long)portPtr,(SearchFuncPtr)PortSessCompare))
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{
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EndNetworkSession(nil,(NetIPCParamsPtr) sessPtr);
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}
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} // CleanSessions
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/*---------------------------------------------------------------------------------------------------
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KillReadAndWrite completes all the outstanding read and write parameter blocks for this session
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with a sessClosedErr.
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---------------------------------------------------------------------------------------------------*/
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void KillReadAndWrite(void *sessPtr)
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CommonSessionParamsPtr sessPtr;
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{
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void *PB;
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if(sessPtr->readPB)
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{
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CompleteWithResult(sessPtr->readPB,sessClosedErr);
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sessPtr->readPB = NULL;
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}
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if(sessPtr->writePB)
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{
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CompleteWithResult(sessPtr->writePB,sessClosedErr);
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sessPtr->writePB = NULL;
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}
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while(PB = GetReadPB(sessPtr))
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CompleteWithResult(PB,sessClosedErr);
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while(PB = GetWritePB(sessPtr))
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CompleteWithResult(PB,sessClosedErr);
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}
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