mirror of
https://github.com/elliotnunn/supermario.git
synced 2024-11-22 04:31:30 +00:00
385 lines
12 KiB
C
385 lines
12 KiB
C
/*
|
|
File: PPCLocal.c
|
|
|
|
Contains: PPC Local Session Management Calls
|
|
|
|
Written by: Sangam
|
|
|
|
Copyright: © 1989-1992 by Apple Computer, Inc., all rights reserved.
|
|
|
|
Change History (most recent first):
|
|
|
|
<22> 4/14/92 BBM <JSM>: Remove unfinished PPC code that is under the contitional
|
|
“TheFutute”, and remove the conditional “CubeE” since that is
|
|
reality. Remove conditionals, since all they do is confuse.
|
|
<21> 10/4/91 JSM Change PsychoticFarmerOrLater conditionals to TheFuture.
|
|
<20> 9/29/91 DTY Conditionalize <17> thru <19> out of CubeE.
|
|
<19> 6/26/91 EMT Add support to kill PPCStart calls
|
|
<18> 6/10/91 EMT Optimize code for size
|
|
<17> 6/4/91 EMT Roll in StoreAndForward Revisions
|
|
<16> 11/6/90 EMT Fix warning
|
|
<15> 10/30/90 EMT Seperate Read and Write PB's into their own queue's.
|
|
<14> 10/18/90 EMT Fix functions to have prototype declarations
|
|
<13> 10/11/90 EMT add conditional around debug code
|
|
<13> 10/11/90 EMT add conditional around debug code
|
|
<12> 9/21/90 EMT Update constants, types, and field names as dictated by
|
|
PPCToolBox.h
|
|
<11> 9/4/90 EMT Roll in Eric's changes
|
|
<10> 6/28/90 S To Improve Dynamic allocation of sessions.
|
|
<9> 4/17/90 JSM Add prototype for AvoidDuplicateCompletion, fix bug where
|
|
AvoidDuplicateCompletion was being called with extra parameter.
|
|
<8> 3/20/90 S Bug Fix. Returning the wrong user name.
|
|
<7> 2/27/90 S ErrorCode Fix.
|
|
<6> 2/20/90 S Some ErrorCode Changes.
|
|
<5> 2/13/90 S Some Bug Fix.
|
|
<4> 2/8/90 S Minor Bug Fix.
|
|
<3> 1/30/90 S Bug Fixes.
|
|
<1.4> 10/12/89 CCH Fixed header
|
|
<•1.3> 10/12/89 CVC Added Access Control
|
|
<1.2> 10/2/89 CVC Fixed a big in PPCInform call.
|
|
<1.1> 9/25/89 ss Added Support for 'more' in PPCWrite calls.
|
|
<1.0> 9/18/89 CVC Adding PPC toolbox for the first time.
|
|
|
|
Old Revision History:
|
|
|
|
06/05/89 Sangam New Today
|
|
07/20/89 Sangam 1.0d2 release today!
|
|
08/10/89 Sangam Made changes to accomadate new IPCListPorts call
|
|
08/10/89 Sangam Added userEntry filed for read/write headers
|
|
09/08/89 Sangam Changed the errorcode for PPCReject to rejectErr
|
|
09/11/89 Sangam Fixed the problem of completion not being called(some times)
|
|
in accept and reject session functions.
|
|
09/15/89 Sangam Changed the errorcode to rejectErr (when inform is not outstanding)
|
|
09/19/89 Sangam Returning the Right port name portname at PPCInform Call to build special
|
|
version for Jay.
|
|
09/21/89 Sangam Changed the interface to GetPortNames call
|
|
09/22/89 Sangam Removed destportName and destlocname from session data structure
|
|
09/25/89 Sangam Added Support for 'more' in PPCWrite calls.
|
|
01/04/90 Sangam Bug fix for actualLength in read/write calls.
|
|
|
|
*/
|
|
|
|
#include "PPCCommon.h"
|
|
#include <String.h>
|
|
|
|
/*----------------------------------------------------------------------------------------
|
|
Prototypes of functions used only in this file.
|
|
----------------------------------------------------------------------------------------*/
|
|
STATIC void LocalTransfer(CommonSessionParamsPtr writeSess,
|
|
CommonSessionParamsPtr readSess);
|
|
|
|
/*----------------------------------------------------------------------------------------
|
|
GetLocSess returns the a new local session table.
|
|
----------------------------------------------------------------------------------------*/
|
|
|
|
STATIC LocalIPCParamsPtr GetLocSess(PPCGlobalParamsPtr ppcglobPtr)
|
|
{
|
|
LocalIPCParamsPtr theSess;
|
|
|
|
if(theSess = ServeQueue(&ppcglobPtr->freeLocSessQueue))
|
|
{
|
|
memset(theSess,0,sizeof(LocalIPCParams));
|
|
theSess->sessUse = locUse;
|
|
EnQueue(theSess,&ppcglobPtr->LocSessQueue);
|
|
}
|
|
return(theSess);
|
|
}
|
|
|
|
STATIC void FreeLocSess(LocalIPCParamsPtr sessPtr)
|
|
{
|
|
PPCGlobalParamsPtr ppcglobPtr;
|
|
PPCPortEntryPtr portPtr;
|
|
|
|
ppcglobPtr = (PPCGlobalParamsPtr)getGlobal();
|
|
portPtr = sessPtr->portEntry;
|
|
DeleteFromQueue(&ppcglobPtr->LocSessQueue,(unsigned long)sessPtr,PointerCompare);
|
|
if(portPtr) // <20> if this session belongs to a port.
|
|
--portPtr->sessCount; // <20> update the port table.
|
|
EnQueue(sessPtr,&ppcglobPtr->freeLocSessQueue);
|
|
}
|
|
|
|
void StartLocalSession(PPCStartPBPtr startPB,
|
|
PPCPortEntryPtr srcportPtr,
|
|
PPCGlobalParamsPtr ppcglobPtr)
|
|
{
|
|
PPCPortEntryPtr destportPtr;
|
|
CommonSessionParamsPtr srcSess, destSess;
|
|
PPCInformPBPtr informPB;
|
|
PBWriteResPtr res; // <20>
|
|
unsigned short i; // <20>
|
|
unsigned char *temp; // <20>
|
|
|
|
res =(PBWriteResPtr)(startPB->Reserved);
|
|
|
|
if (!(destportPtr = CheckPortName(startPB->portName, ppcglobPtr)))
|
|
{
|
|
CompleteWithResult(startPB,destPortErr);
|
|
return;
|
|
}
|
|
|
|
if (!(informPB = ServeQueue(&destportPtr->informPBQueue)))
|
|
{
|
|
CompleteWithResult(startPB,noInformErr);
|
|
return;
|
|
}
|
|
|
|
if (!(srcSess =(CommonSessionParamsPtr)GetLocSess(ppcglobPtr)))
|
|
{
|
|
SetPortInformQue(informPB, destportPtr); // Add the PB back
|
|
CompleteWithResult(startPB,sessTableErr);
|
|
return;
|
|
}
|
|
if (!(destSess = (CommonSessionParamsPtr)GetLocSess(ppcglobPtr)))
|
|
{
|
|
FreeLocSess((LocalIPCParamsPtr)srcSess); /* Free the Source Session table */
|
|
SetPortInformQue(informPB, destportPtr); // Add the PB back
|
|
CompleteStartPBWithResult:
|
|
CompleteWithResult(startPB,sessTableErr);
|
|
return;
|
|
}
|
|
|
|
SetSessionTable(srcSess, srcportPtr, ppcglobPtr);
|
|
SetSessionTable(destSess, destportPtr, ppcglobPtr);
|
|
|
|
srcSess->conRef = destSess->sessRefNum;
|
|
destSess->conRef = srcSess->sessRefNum;
|
|
|
|
|
|
informPB->sessRefNum = destSess->sessRefNum;
|
|
informPB->serviceType = ppcServiceRealTime;
|
|
informPB->userData = startPB->userData;
|
|
informPB->requestType = ppcLocalOrigin;
|
|
if (informPB->portName)
|
|
CopyPortName(&(srcportPtr->portName),informPB->portName);
|
|
|
|
if (informPB->locationName)
|
|
{
|
|
temp = (unsigned char *)(informPB->locationName);
|
|
for (i=0; i< sizeof(LocationNameRec); i++)
|
|
*temp++ = '\0';
|
|
}
|
|
|
|
if (informPB->userName)
|
|
|
|
*informPB->userName = '\0'; // No User Name for local Session
|
|
if (informPB->autoAccept)
|
|
{
|
|
srcSess->sessState = DataXferState;
|
|
destSess->sessState = DataXferState;
|
|
startPB->sessRefNum = srcSess->sessRefNum;
|
|
srcSess->PBPtr = NULL;
|
|
CompleteWithResult(informPB,noErr);
|
|
CompleteWithResult(startPB,noErr);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
srcSess->sessState = AwaitAcceptResp;
|
|
destSess->sessState = AwaitAcceptReq;
|
|
srcSess->PBPtr = startPB; // Remember the Start PB for this session.
|
|
CompleteWithResult(informPB,noErr);
|
|
}
|
|
} // StartLocalSession
|
|
|
|
void AcceptLocalSession(PPCAcceptPBPtr acceptPB,
|
|
CommonSessionParamsPtr destSess,
|
|
PPCGlobalParamsPtr ppcglobPtr)
|
|
{
|
|
CommonSessionParamsPtr srcSess;
|
|
PPCStartPBPtr startPB;
|
|
|
|
if (!(srcSess = SessRefNumtoPtr(destSess->conRef, ppcglobPtr)))
|
|
{
|
|
FreeLocSess((LocalIPCParamsPtr)destSess);
|
|
CompleteWithResult(acceptPB,noSessionErr);
|
|
return;
|
|
}
|
|
|
|
srcSess->sessState = DataXferState;
|
|
destSess->sessState = DataXferState;
|
|
startPB = srcSess->PBPtr;
|
|
startPB->sessRefNum = srcSess->sessRefNum;
|
|
srcSess->PBPtr = NULL;
|
|
destSess->PBPtr = NULL;
|
|
CompleteWithResult(startPB,noErr);
|
|
CompleteWithResult(acceptPB,noErr);
|
|
} // AcceptLocalSession
|
|
|
|
void RejectLocalSession(PPCRejectPBPtr rejectPB,
|
|
CommonSessionParamsPtr destSess,
|
|
PPCGlobalParamsPtr ppcglobPtr)
|
|
{
|
|
CommonSessionParamsPtr srcSess;
|
|
PPCStartPBPtr startPB;
|
|
|
|
if (!(srcSess = SessRefNumtoPtr(destSess->conRef, ppcglobPtr)))
|
|
{
|
|
FreeLocSess((LocalIPCParamsPtr)destSess);
|
|
CompleteWithResult(rejectPB,noSessionErr);
|
|
return;
|
|
}
|
|
startPB = srcSess->PBPtr;
|
|
FreeLocSess((LocalIPCParamsPtr)destSess);
|
|
FreeLocSess((LocalIPCParamsPtr)srcSess);
|
|
startPB->rejectInfo = rejectPB->rejectInfo;
|
|
CompleteWithResult(startPB,userRejectErr);
|
|
CompleteWithResult(rejectPB, noErr);
|
|
}
|
|
|
|
|
|
void WriteLocalData(PPCWritePBPtr writePB,
|
|
CommonSessionParamsPtr srcSess,
|
|
PPCGlobalParamsPtr ppcglobPtr)
|
|
{
|
|
CommonSessionParamsPtr destSess;
|
|
PBWriteResPtr res;
|
|
|
|
res = (PBWriteResPtr)(writePB->Reserved);
|
|
res->curBufPos = writePB->bufferPtr;
|
|
res->length = writePB->bufferLength;
|
|
|
|
if (destSess = SessRefNumtoPtr(srcSess->conRef, ppcglobPtr))
|
|
{
|
|
AddWritePB(srcSess,writePB);
|
|
if(!srcSess->writePB) // if not currently writing then
|
|
{
|
|
srcSess->writePB = GetWritePB(srcSess);
|
|
if(destSess->readPB)
|
|
LocalTransfer(srcSess, destSess);
|
|
|
|
}
|
|
}
|
|
else
|
|
CompleteWithResult(writePB,noSessionErr);
|
|
} // WriteLocalData
|
|
|
|
void ReadLocalData(PPCReadPBPtr readPB,
|
|
CommonSessionParamsPtr destSess,
|
|
PPCGlobalParamsPtr ppcglobPtr)
|
|
{
|
|
CommonSessionParamsPtr srcSess;
|
|
PBWriteResPtr res;
|
|
|
|
res = (PBWriteResPtr)(readPB->Reserved);
|
|
|
|
if (srcSess = SessRefNumtoPtr(destSess->conRef, ppcglobPtr))
|
|
{
|
|
AddReadPB(destSess,readPB);
|
|
if(!destSess->readPB)
|
|
{
|
|
destSess->readPB = GetReadPB(destSess);
|
|
if(srcSess->writePB)
|
|
LocalTransfer(srcSess, destSess);
|
|
}
|
|
}
|
|
else
|
|
CompleteWithResult(readPB,noSessionErr);
|
|
} // ReadLocalData
|
|
|
|
void EndLocalSession(PPCEndPBPtr endPB,
|
|
CommonSessionParamsPtr srcSess,
|
|
PPCGlobalParamsPtr ppcglobPtr)
|
|
{
|
|
CommonSessionParamsPtr destSess;
|
|
PPCPortEntryPtr portPtr;
|
|
|
|
|
|
portPtr = srcSess->portEntry;
|
|
destSess = DeleteSessByRefNum(srcSess->conRef,ppcglobPtr);
|
|
if (srcSess->sessState == AwaitAcceptResp)
|
|
{
|
|
if (destSess)
|
|
{
|
|
FreeLocSess((LocalIPCParamsPtr)destSess);
|
|
}
|
|
CompleteWithResult(srcSess->PBPtr, portClosedErr);
|
|
FreeLocSess((LocalIPCParamsPtr)srcSess);
|
|
}
|
|
else if (srcSess->sessState == AwaitAcceptReq)
|
|
{
|
|
if (destSess)
|
|
{
|
|
CompleteWithResult(destSess->PBPtr,destPortErr);
|
|
FreeLocSess((LocalIPCParamsPtr)destSess);
|
|
}
|
|
FreeLocSess((LocalIPCParamsPtr)srcSess);
|
|
}
|
|
else if (srcSess->sessState == DataXferState)
|
|
{
|
|
if (destSess)
|
|
{
|
|
KillReadAndWrite(destSess);
|
|
FreeLocSess((LocalIPCParamsPtr)destSess);
|
|
}
|
|
KillReadAndWrite(srcSess);
|
|
FreeLocSess((LocalIPCParamsPtr)srcSess);
|
|
}
|
|
#ifdef DEBUG
|
|
else
|
|
DebugStr("\pSrcSession in unknown state, doesn't get freed");
|
|
#endif
|
|
if (endPB)
|
|
CompleteWithResult(endPB,noErr);
|
|
else // <20> Must be a PPCClose operation.
|
|
CompleteClosePort(portPtr); // <20>
|
|
} // EndLocalSession
|
|
|
|
void ListLocalPorts(IPCListPortsPBPtr listPB,PPCGlobalParamsPtr ppcglobPtr)
|
|
{
|
|
GetPortNames(ppcglobPtr,listPB->portName,
|
|
true, // local
|
|
true, // guetstUnChecked
|
|
listPB->startIndex,
|
|
(PortInfoPtr)listPB->bufferPtr,
|
|
listPB->requestCount, &(listPB->actualCount));
|
|
CompleteWithResult(listPB,noErr);
|
|
} //ListLocalPorts
|
|
|
|
|
|
STATIC void LocalTransfer(CommonSessionParamsPtr writeSess,
|
|
CommonSessionParamsPtr readSess)
|
|
{
|
|
PPCWritePBPtr writePB;
|
|
PPCReadPBPtr readPB;
|
|
unsigned long xferLength;
|
|
PBWriteResPtr res;
|
|
unsigned char *dataPtr;
|
|
|
|
while((writePB = writeSess->writePB) && (readPB = readSess->readPB))
|
|
{
|
|
res = (PBWriteResPtr)(writePB->Reserved);
|
|
if (res->length > readPB->bufferLength -readPB->actualLength)
|
|
xferLength = readPB->bufferLength - readPB->actualLength;
|
|
else
|
|
xferLength = res->length; // <20>
|
|
/* Copy the Data */
|
|
dataPtr = (unsigned char *)(readPB->bufferPtr + readPB->actualLength);
|
|
BlockMove((char *)res->curBufPos, dataPtr,xferLength);
|
|
writePB->actualLength += xferLength;
|
|
res->curBufPos+=xferLength;
|
|
res->length-=xferLength;
|
|
|
|
readPB->blockCreator = writePB->blockCreator;
|
|
readPB->blockType = writePB->blockType;
|
|
readPB->userData = writePB->userData;
|
|
readPB->actualLength = readPB->actualLength + xferLength;
|
|
|
|
if (res->length) // <20> If we have more to write for this request.
|
|
{
|
|
readPB->more = true;
|
|
}
|
|
else
|
|
{
|
|
readPB->more = writePB->more;
|
|
CompleteWithResult(writePB,noErr);
|
|
writeSess->writePB = GetWritePB(writeSess);
|
|
}
|
|
|
|
// if no more to read, or the read buffer is full then
|
|
if (!readPB->more || (readPB->actualLength == readPB->bufferLength))
|
|
{
|
|
CompleteWithResult(readPB,noErr);
|
|
readSess->readPB = GetReadPB(readSess);
|
|
}
|
|
}
|
|
} // LocalTransfer
|