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/* Copyright (c) 1996-2004, Adaptec Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the Adaptec Corporation nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
//File - CORE_MGR.CPP
//***************************************************************************
//
//Description:
//
// This file contains the function definitions for the dptCoreMgr_C
//class.
//
//Author: Doug Anderson
//Date: 10/14/92
//
//Editors:
//
//Remarks:
//
//
//***************************************************************************
#include "allfiles.hpp"
//Function - dptCoreMgr_C::dptCoreMgr_C() - start
//===========================================================================
//
//Description:
//
// This function is the constructor for the dptCoreMgr_C class.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
dptCoreMgr_C::dptCoreMgr_C()
{
// Clear all flags
flags = 0;
// Initialize this manager's level of operation
level = 0;
// Indicate that this object is a manager object
setMgr();
}
//dptCoreMgr_C::dptCoreMgr_C() - end
//Function - dptCoreMgr_C::enterLog() - start
//===========================================================================
//
//Description:
//
// This function adds an object to this manager's logical devices list.
//
//Parameters:
//
//Return Value:
//
// 1 = The device was successfully entered into the engine core.
// 0 = The device was not entered into the engine core and was deleted.
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
DPT_RTN_T dptCoreMgr_C::enterLog(dptCoreDev_C *inDev_P)
{
DPT_RTN_T retVal;
uSHORT _status = 0;
// Determine if it is OK to add this device
if ((retVal = preEnterLog(inDev_P)) == MSG_RTN_COMPLETED) {
// The device originates in a logical device list
inDev_P->coreFlags |= FLG_ENG_LIST;
// The object is attached to this manager.
inDev_P->attachedTo_P = this;
// Set the object's connection pointer
inDev_P->conn_P = myConn_P();
// Add the object to the connection's master object list
if (myConn_P()->objectList.addEnd(inDev_P)) {
// Attempt to add the new device to this manager's logical device
// list and all higher level managers' logical device lists
_status = bubble(inDev_P);
if (_status==2)
// Call the handler for an incomplete bubble
_status = myConn_P()->enterSuppressed(inDev_P);
else if (_status==0)
// Remove from the connection's master device list
myConn_P()->objectList.remove(inDev_P);
} // end if (objectList.addEnd())
if (_status==0)
retVal = MSG_RTN_FAILED | ERR_MEM_ALLOC;
} // end if (preEnterLog())
if (_status==0)
// Call the handler for an invalid add to engine core
notAddedToCore(inDev_P);
return (retVal);
}
//dptCoreMgr_C::enterLog() - end
//Function - dptCoreMgr_C::enterPhy() - start
//===========================================================================
//
//Description:
//
// This function adds an object to the physical device list.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
DPT_RTN_T dptCoreMgr_C::enterPhy(dptCoreObj_C *inObj_P)
{
DPT_RTN_T retVal;
uSHORT _status = 0;
dptCoreDev_C *dev_P;
dptCoreMgr_C *mgr_P;
// Determine if it is OK to enter this object
if ((retVal = preEnterPhy(inObj_P))==MSG_RTN_COMPLETED) {
retVal = MSG_RTN_FAILED | ERR_MEM_ALLOC;
// Add the object to the connection's master object list
if (myConn_P()->objectList.addEnd(inObj_P)) {
if (preAddPhy(inObj_P)) {
if (phyList.add(inObj_P)) {
// The object is attached to this manager.
inObj_P->attachedTo_P = this;
// Set the object's connection pointer
inObj_P->conn_P = myConn_P();
// If the object is a device...
if (inObj_P->isDevice()) {
// Cast the object as a device
dev_P = (dptCoreDev_C *) inObj_P;
// Set the object's highest visible level
dev_P->visibleLevel = level + 1;
// If this manager bubbles physical devices...
if (isBubbler()) {
// Bubble the object up the logical device chain
_status = bubble(dev_P);
if ((_status==2) || (_status==0))
// Enter in the connection's suppressed device list
myConn_P()->enterSuppressed(dev_P);
} // end if (isBubbler())
else {
// Intentionally suppress the device
myConn_P()->suppress(dev_P);
}
} // end if (isDevice())
else {
// Cast the object as a manager
mgr_P = (dptCoreMgr_C *) inObj_P;
// Set the sub-manager's level
mgr_P->level = level + 1;
}
// Call the post add physical handler
postAddPhy(inObj_P);
// The object was added to the engine core
_status = 1;
// Indicate success
retVal = MSG_RTN_COMPLETED;
} // end if (phyList.add())
} // end if (preAddPhy())
} // end if (objectList.addEnd())
} // end if (preEnterPhy())
if (_status==0) {
// Remove from the connection's master device list
myConn_P()->objectList.remove(inObj_P);
// Call the handler for an invalid add to engine core
notAddedToCore(inObj_P);
}
return (retVal);
}
//dptCoreMgr_C::enterPhy() - end
//Function - dptCoreMgr_C::bubble() - start
//===========================================================================
//
//Description:
//
// This function attempts to add a device to the logical device list.
//If the object is successfully added to this manager's logical device
//list, the logical addition is passed to the next manager.
//
//Parameters:
//
//Return Value:
//
// 2 = The device was added to this manager's logical device list
// but could not be added to a higher level manager's logical
// device list (An incomplete bubble).
// 1 = The device was added to or already existed in this manager's
// logical device list and all higher level manager's logical
// device lists.
// 0 = The device could not be added to this manager's logical device
// list.
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
uSHORT dptCoreMgr_C::bubble(dptCoreDev_C *inDev_P)
{
uSHORT retVal = 0;
// Check if the device already exists
if (logList.exists(inDev_P))
retVal = 1;
else {
// If the pre-add logical functions were performed OK...
if (preAddLog(inDev_P)) {
// Attempt to add the device to the logical device list
if (logList.add(inDev_P)) {
// Set the object's highest visible level
inDev_P->visibleLevel = level;
// Call the post enter logical handler
postAddLog(inDev_P);
retVal = 1;
}
}
}
if (retVal==1) {
if (myMgr_P()!=NULL) {
// Pass the addition up the attachment chain
retVal = ((dptCoreMgr_C *)myMgr_P())->bubble(inDev_P);
// If the next level failed, indicate an incomplete bubble
if (retVal==0) retVal = 2;
}
}
return (retVal);
}
//dptCoreMgr_C::bubble() - end
//Function - dptCoreMgr_C::remLogical() - start
//===========================================================================
//
//Description:
//
// This function removes the specified device from this manager's
//logical device list and passes the removal request up the attachment
//chain.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
void dptCoreMgr_C::remLogical(dptCoreDev_C *dev_P)
{
// Remove the device from this manager's logical device list
logList.remove(dev_P);
if (attachedTo_P!=NULL)
// Pass the logical removal up the attachment chain
attachedTo_P->remLogical(dev_P);
}
//dptCoreMgr_C::remLogical() - end
//Function - dptCoreMgr_C::remFromMgr() - start
//===========================================================================
//
//Description:
//
// This function removes the specified object from this manager's lists.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
void dptCoreMgr_C::remFromMgr(dptCoreObj_C *obj_P)
{
// If the object is a manager...
if (obj_P->isManager())
// Delete all the manager's objects
((dptCoreMgr_C *)obj_P)->delAllObjects();
else
// Remove from this manager's logical device list & all
// higher level manager's logical device lists
remLogical((dptCoreDev_C *)obj_P);
// Remove the object from this manager's physical device list
phyList.remove(obj_P);
}
//dptCoreMgr_C::remFromMgr() - end
//Function - dptCoreMgr_C::delAllObjects() - start
//===========================================================================
//
//Description:
//
// This function deletes all objects attached directly to this manager.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
void dptCoreMgr_C::delAllObjects()
{
dptCoreDev_C *dev_P;
dptCoreObj_C *obj_P;
// Delete all logical devices attached directly to this manager
dev_P = (dptCoreDev_C *) logList.reset();
while (dev_P!=NULL) {
if (dev_P->isMyObject(this) && dev_P->isLogical()) {
// Remove the device from any higher level manager's log lists
if (attachedTo_P!=NULL)
// Pass the logical removal up the attachment chain
attachedTo_P->remLogical(dev_P);
// Remove the device from the connection's lists
myConn_P()->remFromCon(dev_P);
// Delete the device
delete(dev_P);
// Remove the device from this manager's logical device list
dev_P = (dptCoreDev_C *) logList.remove();
}
else
// Get the next logical device
dev_P = (dptCoreDev_C *) logList.next();
}
// Delete all physical objects attached directly to this manager
obj_P = (dptCoreObj_C *) phyList.reset();
while (obj_P!=NULL) {
// If the object is a manager...
if (obj_P->isManager())
// Delete all of the sub-manager's objects
((dptCoreMgr_C *)obj_P)->delAllObjects();
else
// Remove from this manager's logical device list & all
// higher level manager's logical device lists
remLogical((dptCoreDev_C *)obj_P);
// Remove the object from the connection's lists
myConn_P()->remFromCon(obj_P);
// Delete the object
delete(obj_P);
// Remove the object from this manager's physical object list
obj_P = (dptCoreObj_C *) phyList.remove();
}
}
//dptCoreMgr_C::delAllObjects() - end
//Function - dptCoreMgr_C::getDevLevel() - start
//===========================================================================
//
//Description:
//
// This function determines the logical level of the attached device.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
uSHORT dptCoreMgr_C::getDevLevel(dptCoreDev_C *dev_P)
{
uSHORT retVal = level;
if (dev_P->isPhysical())
retVal++;
return (retVal);
}
//dptCoreMgr_C::getDevLevel() - end
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