author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 16:34:26 +0300 | |
branch | RCL_3 |
changeset 256 | c1f20ce4abcf |
parent 249 | a179b74831c9 |
child 257 | 3e88ff8f41d5 |
permissions | -rw-r--r-- |
0 | 1 |
// Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of the License "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// e32\kernel\sprocess.cpp |
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// |
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// |
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||
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#include <kernel/kern_priv.h> |
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#include <e32uid.h> |
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||
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#define iMState iWaitLink.iSpare1 |
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||
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_LIT(KDollarLock,"$LOCK"); |
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_LIT(KDllDollarLock,"DLL$LOCK"); |
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_LIT(KLitMain,"Main"); |
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_LIT(KLitKill,"Kill"); |
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_LIT(KLitTerminate,"Terminate"); |
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||
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/******************************************** |
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* Process |
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********************************************/ |
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DProcess::DProcess() |
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: iPriority(EProcPriorityForeground), |
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iExitType((TUint8)EExitPending), iGeneration(1), iFlags(KProcessFlagJustInTime), |
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iDynamicCode(8, _FOFF(SCodeSegEntry, iSeg), 2*256) |
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{ |
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//reserve slot 0 for later use for the command line |
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iEnvironmentData[0] = EBinaryData; |
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} |
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||
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DProcess::~DProcess() |
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{ |
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delete iCommandLine; |
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//delete any process parameters given to this process when it was created |
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TInt i; |
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for (i = 0; i < KArgIndex; ++i) |
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{ |
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//if the value is a pointer to a buffer, delete it |
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//if its a pointer to an object, close it |
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TInt data = iEnvironmentData[i]&~3; |
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||
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if (iEnvironmentData[i] & EBinaryData) |
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{ |
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delete (HBuf8*)(data); |
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} |
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else if (iEnvironmentData[i] & EHandle) |
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{ |
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((DObject*)data)->Close(NULL); |
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} |
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} |
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||
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} |
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||
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void DProcess::Destruct() |
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{ |
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} |
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void DProcess::DoAppendName(TDes& aName) |
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{ |
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DObject::DoAppendName(aName); |
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aName.Append('['); |
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aName.AppendNumFixedWidth(iUids.iUid[2].iUid,EHex,8); |
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aName.Append(']'); |
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aName.AppendNumFixedWidth(iGeneration,EDecimal,4); |
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} |
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TInt NextGeneration(const TDesC& aName, TUid aUid) |
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// |
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// Return the next generation number for the process |
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// |
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{ |
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||
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const TInt KNameSuffixLen = 14; // Number of chars after root name, see DoAppendName |
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||
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__KTRACE_OPT(KPROC,Kern::Printf("DProcess::NextGeneration %S 0x%08x", &aName, aUid.iUid)); |
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TInt gen=0; |
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DObjectCon& processes=*K::Containers[EProcess]; |
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TKName name; |
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processes.Wait(); |
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for (TInt i = 0 ; i < processes.Count() ; ++i) |
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{ |
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DProcess* pP=(DProcess*)processes[i]; |
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if (pP->iAccessCount > 0 && aUid.iUid == pP->iUids.iUid[2].iUid && pP->NameBuf()) |
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{ |
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pP->Name(name); |
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if (name.Length() > KNameSuffixLen) |
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{ |
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TPtrC rootName = name.Left(name.Length() - KNameSuffixLen); |
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if (aName.CompareF(rootName) == 0 && pP->iAccessCount > 0) |
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{ |
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if (pP->iGeneration>gen) |
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gen=pP->iGeneration; |
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} |
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} |
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} |
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} |
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processes.Signal(); |
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__KTRACE_OPT(KPROC,Kern::Printf("DProcess generation %d",gen+1)); |
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return(gen+1); |
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} |
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__ASSERT_COMPILE(ECapability_Limit<=32); // Kernel's iCaps caps below assumes this |
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TInt DProcess::SetPaging(const TProcessCreateInfo& aInfo) |
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{// Default implementation that only verifies flags, this virtual method |
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// is overridden in memory models that support paging. |
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if (aInfo.iFlags & TProcessCreateInfo::EDataPagingMask == |
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TProcessCreateInfo::EDataPagingMask) |
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{ |
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return KErrCorrupt; |
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} |
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return KErrNone; |
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} |
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TInt DProcess::Create(TBool aKernelProcess, TProcessCreateInfo& aInfo, HBuf* aCommandLine) |
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{ |
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__KTRACE_OPT(KBOOT,Kern::Printf("DProcess::Create")); |
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TInt r=KErrNone; |
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iCommandLine=aCommandLine; // do this first to prevent memory leak if error occurs |
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TPtrC f=aInfo.iFileName.Mid(aInfo.iRootNameOffset,aInfo.iRootNameLength); |
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r=SetName(&f); |
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if (r!=KErrNone) |
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return r; |
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// Verify and save any data paging attributes. |
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SetPaging(aInfo); |
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iUids=aInfo.iUids; |
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iS=aInfo.iS; |
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iDebugAttributes = (TUint8)aInfo.iDebugAttributes; |
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if (!aKernelProcess) |
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{ |
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iPriority=0; |
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TInt p=ConvertPriority(aInfo.iPriority); |
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if (p<0) |
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return KErrArgument; |
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iPriority=p; |
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iGeneration=NextGeneration(f,iUids.iUid[2]); |
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} |
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else |
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{ |
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iPriority = EProcPrioritySystemServer3; |
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iFlags |= KProcessFlagSystemPermanent|KProcessFlagSystemCritical; |
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} |
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#ifdef BTRACE_THREAD_PRIORITY |
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BTrace8(BTrace::EThreadPriority,BTrace::EProcessPriority,this,iPriority); |
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#endif |
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iId = K::NewId(); |
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iCreatorId = iId; // Initialise as self for safety because creator has special capabilities |
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if(TheSuperPage().KernelConfigFlags() & EKernelConfigPlatSecProcessIsolation) |
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{ |
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if(aInfo.iSecurityZone==KSecurityZoneUnique) |
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iSecurityZone=iId; |
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else |
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iSecurityZone=aInfo.iSecurityZone; |
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} |
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else |
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iSecurityZone=KSecurityZoneLegacyCode; |
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r=K::MutexCreate((DMutex*&)iProcessLock, KDollarLock, this, EFalse, KMutexOrdProcessLock); |
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__KTRACE_OPT(KPROC,Kern::Printf("Lock mutex created, %d",r)); |
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if (r!=KErrNone) |
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return r; |
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if (!aKernelProcess) |
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{ |
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r=K::MutexCreate((DMutex*&)iDllLock, KDllDollarLock, this, EFalse, KMutexOrdUser); |
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if (r!=KErrNone) |
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return r; |
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} |
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r=DoCreate(aKernelProcess,aInfo); |
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if (r!=KErrNone) |
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return r; |
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__KTRACE_OPT(KPROC,Kern::Printf("Process attributes %08x",iAttributes)); |
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iAttributes |= EBeingLoaded; |
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#ifdef __DEBUGGER_SUPPORT__ |
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// Send new process notification. Note that the creator thread can not always |
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// be figured out. It could have been killed atfer requesting the loader to |
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// create the process or the process could be created by a kernel thread. |
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NKern::LockSystem(); |
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DThread* creator = (DThread*)TheCurrentThread->ObjectFromHandle(aInfo.iClientHandle,EThread); |
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if (creator && (creator->Open() != KErrNone)) |
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creator = NULL; |
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NKern::UnlockSystem(); |
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__DEBUG_EVENT2(EEventAddProcess, this, creator); |
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if (creator) |
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creator->Close(NULL); |
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#endif |
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#ifdef BTRACE_THREAD_IDENTIFICATION |
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BTrace4(BTrace::EThreadIdentification,BTrace::EProcessCreate,this); |
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#endif |
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iTempCodeSeg=(DCodeSeg*)aInfo.iHandle; |
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if (iTempCodeSeg) |
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{ |
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if (iTempCodeSeg->iExeCodeSeg!=iTempCodeSeg) |
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return KErrNotSupported; |
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iTempCodeSeg->WaitCheckedOpen(); |
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r=AttachExistingCodeSeg(aInfo); // doesn't map the code in - Loaded() does this |
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if (r!=KErrNone) |
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return r; |
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} |
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else |
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{ |
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iTempCodeSeg=M::NewCodeSeg(aInfo); |
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if (!iTempCodeSeg) |
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return KErrNoMemory; |
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iTempCodeSeg->iExeCodeSeg=iTempCodeSeg; |
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r=iTempCodeSeg->Create(aInfo,this); |
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if (r!=KErrNone) |
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return r; |
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iTempCodeSeg->WaitCheckedOpen(); |
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aInfo.iHandle=iTempCodeSeg; |
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} |
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if (!aKernelProcess) |
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{ |
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DThread* pT=NULL; |
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SStdEpocThreadCreateInfo t; |
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t.iType=EThreadUser; |
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t.iFunction=(TThreadFunction)aInfo.iFileEntryPoint; // kernel will call veneer, veneer will call this |
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t.iPtr=NULL; |
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t.iSupervisorStack=NULL; |
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t.iSupervisorStackSize=0; // zero means use default value |
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t.iUserStack=NULL; |
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t.iUserStackSize=aInfo.iStackSize; |
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t.iInitialThreadPriority=EThrdPriorityNormal; |
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t.iName.Set(KLitMain); |
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t.iAllocator=NULL; |
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t.iHeapInitialSize=aInfo.iHeapSizeMin; |
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t.iHeapMaxSize=aInfo.iHeapSizeMax; |
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t.iTotalSize = sizeof(t); |
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r=NewThread((DThread*&)pT, t, NULL, EOwnerProcess); |
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if (r==KErrNone) |
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pT->iFlags |= KThreadFlagProcessPermanent|KThreadFlagOriginal; |
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iUserThreadsRunning=1; |
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} |
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if (r!=KErrNone) |
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return r; |
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if (!aKernelProcess) |
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r=K::AddObject(this,EProcess); |
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return r; |
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} |
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DCodeSeg* DProcess::CodeSeg() |
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{ |
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return iCodeSeg ? iCodeSeg : iTempCodeSeg; |
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} |
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TInt DProcess::SetPriority(TProcessPriority aPriority) |
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{ |
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TInt p=ConvertPriority(aPriority); |
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if (p<0) |
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return KErrArgument; |
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if (iExitType!=EExitPending) |
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return KErrDied; |
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__KTRACE_OPT(KPROC,Kern::Printf("Process %O SetPriority(%d)",this,p)); |
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TInt r=WaitProcessLock(); |
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__KTRACE_FAIL(r,Kern::Printf("PSP: %d",r)); |
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if (r!=KErrNone) |
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return KErrDied; |
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#ifdef BTRACE_THREAD_PRIORITY |
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BTrace8(BTrace::EThreadPriority,BTrace::EProcessPriority,this,p); |
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#endif |
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NKern::LockSystem(); |
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iPriority=p; |
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SDblQueLink* pLink=iThreadQ.First(); |
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while (pLink!=&iThreadQ.iA) |
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{ |
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DThread* pT=_LOFF(pLink,DThread,iProcessLink); |
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pT->SetThreadPriority(pT->iThreadPriority); |
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pLink=pLink->iNext; |
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NKern::FlashSystem(); |
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} |
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NKern::UnlockSystem(); |
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SignalProcessLock(); |
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return KErrNone; |
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} |
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||
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TInt DProcess::ConvertPriority(TProcessPriority aPriority) |
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{ |
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TInt p=-1; |
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switch(aPriority) |
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{ |
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case EPriorityLow: p=EProcPriorityLow; break; |
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case EPriorityBackground: p=EProcPriorityBackground; break; |
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case EPriorityForeground: p=EProcPriorityForeground; break; |
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case EPriorityHigh: p=EProcPriorityHigh; break; |
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case EPriorityWindowServer: p=EProcPrioritySystemServer1; break; |
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case EPriorityFileServer: p=EProcPrioritySystemServer2; break; |
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case EPriorityRealTimeServer: p=EProcPriorityRealTimeServer; break; |
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case EPrioritySupervisor: p=EProcPrioritySystemServer3; break; |
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} |
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return p; |
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} |
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TInt DProcess::Rename(const TDesC& aName) |
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{ |
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if (aName.Length()>KMaxKernelName-KMaxUidName-4) |
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return KErrBadName; |
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TKName n; |
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DObject::BaseName(n); // get current name, without UID and generation number |
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if (n.MatchF(aName)==0) |
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return KErrNone; // new name is the same so nothing to do |
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iGeneration = NextGeneration(aName, iUids.iUid[2]); |
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326 |
||
256
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
327 |
__KTRACE_OPT(KTHREAD,Kern::Printf("DProcess::Rename %O to %S",this,&aName)); |
0 | 328 |
TInt r = SetName(&aName); |
329 |
#ifdef BTRACE_THREAD_IDENTIFICATION |
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Name(n); |
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BTraceN(BTrace::EThreadIdentification,BTrace::EProcessName,0,this,n.Ptr(),n.Size()); |
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#endif |
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333 |
||
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__COND_DEBUG_EVENT(r==KErrNone, EEventUpdateProcess, this); |
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return(r); |
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} |
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337 |
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void DProcess::Release() |
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{ |
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340 |
#ifdef __SMP__ |
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// delete thread group |
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if (iSMPUnsafeGroup) |
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{ |
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344 |
NKern::GroupDestroy(iSMPUnsafeGroup); |
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} |
|
346 |
#endif |
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347 |
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348 |
// delete handles with lock mutex free |
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349 |
__KTRACE_OPT(KPROC,Kern::Printf("Process %O Release()",this)); |
|
350 |
__KTRACE_OPT(KPROC,Kern::Printf("Deleting handles")); |
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351 |
iHandles.Close(this); |
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352 |
||
353 |
// Notify process unloading before code segs are released |
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354 |
__DEBUG_EVENT(EEventUnloadingProcess, this); |
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355 |
||
356 |
__NK_ASSERT_DEBUG(iGarbageList.IsEmpty()); |
|
357 |
||
358 |
if (iCodeSeg || iTempCodeSeg) |
|
359 |
{ |
|
360 |
DCodeSeg::Wait(); |
|
361 |
if (iCodeSeg) |
|
362 |
RemoveCodeSeg(iCodeSeg, NULL); |
|
363 |
DCodeSeg* pS = (DCodeSeg*)__e32_atomic_swp_ord_ptr(&iTempCodeSeg, 0); |
|
364 |
if (pS) |
|
365 |
pS->CheckedClose(); |
|
366 |
RemoveDllData(); |
|
367 |
DCodeSeg::Signal(); |
|
368 |
} |
|
369 |
||
370 |
__ASSERT_ALWAYS(iDynamicCode.Count()==0, K::Fault(K::ECodeStillMapped)); |
|
371 |
iDynamicCode.Close(); |
|
372 |
||
373 |
__KTRACE_OPT(KPROC,Kern::Printf("Closing DLL$LOCK mutex")); |
|
374 |
Kern::SafeClose((DObject*&)iDllLock,this); |
|
375 |
||
376 |
__KTRACE_OPT(KPROC,Kern::Printf("Closing owning process")); |
|
377 |
Kern::SafeClose((DObject*&)iOwningProcess,NULL); |
|
378 |
||
379 |
__KTRACE_OPT(KPROC,Kern::Printf("Closing DataBssStack chunk")); |
|
380 |
Kern::SafeClose((DObject*&)iDataBssStackChunk,this); |
|
381 |
||
382 |
NKern::LockSystem(); |
|
383 |
iFinalReleaseFlag = ETrue; |
|
384 |
if (iProcessLock) |
|
385 |
iProcessLock->Wait(); // this will get released when the lock mutex is deleted |
|
386 |
NKern::UnlockSystem(); |
|
387 |
||
388 |
__KTRACE_OPT(KPROC,Kern::Printf("Calling FinalRelease()")); |
|
389 |
// Call FinalRelease() with process $LOCK mutex held (if it exists) |
|
390 |
// and don't ever release the mutex afterwards. |
|
391 |
FinalRelease(); |
|
392 |
||
393 |
__KTRACE_OPT(KPROC,Kern::Printf("Closing $LOCK mutex")); |
|
394 |
Kern::SafeClose((DObject*&)iProcessLock,this); |
|
395 |
||
396 |
// Notify process removal before closing process |
|
397 |
__DEBUG_EVENT(EEventRemoveProcess, this); |
|
398 |
||
399 |
#ifdef BTRACE_THREAD_IDENTIFICATION |
|
400 |
BTrace4(BTrace::EThreadIdentification,BTrace::EProcessDestroy,this); |
|
401 |
#endif |
|
402 |
||
403 |
// Kill any processes which we created but have not resumed |
|
404 |
NKern::LockSystem(); // In case we died in the middle of DProcess::Resume() |
|
405 |
NKern::UnlockSystem(); |
|
406 |
for(;;) |
|
407 |
{ |
|
408 |
DObjectCon& processes=*K::Containers[EProcess]; |
|
409 |
processes.Wait(); |
|
410 |
DProcess* zombie=NULL; |
|
411 |
TInt c=processes.Count(); |
|
412 |
for (TInt i=0; i<c; i++) |
|
413 |
{ |
|
414 |
DProcess* pP=(DProcess*)processes[i]; |
|
415 |
if (pP->iCreatorId==iId && pP!=this && pP->Open()==KErrNone) |
|
416 |
{ |
|
417 |
zombie = pP; |
|
418 |
break; |
|
419 |
} |
|
420 |
} |
|
421 |
processes.Signal(); |
|
422 |
if(!zombie) |
|
423 |
break; |
|
424 |
__KTRACE_OPT(KPROC,Kern::Printf("Killing zombie process %O",zombie)); |
|
425 |
zombie->iCreatorId=zombie->iId; |
|
426 |
zombie->Die(EExitPanic,EZombieProcessKilled,KLitKernExec()); |
|
427 |
zombie->Close(0); |
|
428 |
} |
|
429 |
||
430 |
__KTRACE_OPT(KPROC,Kern::Printf("Closing process")); |
|
431 |
Close(this); |
|
432 |
} |
|
433 |
||
434 |
TInt DProcess::WaitProcessLock() |
|
435 |
{ |
|
436 |
TInt r=KErrGeneral; |
|
437 |
NKern::LockSystem(); |
|
438 |
if (iProcessLock && !iFinalReleaseFlag) // iProcessLock is deleted during process death |
|
439 |
{ |
|
440 |
r=iProcessLock->Wait(); // mutex may be resetting just before deletion |
|
441 |
__KTRACE_FAIL(r,Kern::Printf("PLW: %d",r)); // will return KErrGeneral if mutex is reset |
|
442 |
} |
|
443 |
NKern::UnlockSystem(); |
|
444 |
__KTRACE_FAIL(r,Kern::Printf("WPL: %d",r)); |
|
445 |
return r; |
|
446 |
} |
|
447 |
||
448 |
TInt DProcess::SignalProcessLock() |
|
449 |
{ |
|
450 |
TInt r=KErrDied; |
|
451 |
NKern::LockSystem(); |
|
452 |
if (iProcessLock) |
|
453 |
{ |
|
454 |
iProcessLock->Signal(); |
|
455 |
r=KErrNone; |
|
456 |
} |
|
457 |
else |
|
458 |
NKern::UnlockSystem(); |
|
459 |
__KTRACE_FAIL(r,Kern::Printf("SPL: %d",r)); |
|
460 |
return r; |
|
461 |
} |
|
462 |
||
463 |
TInt DProcess::Loaded(TProcessCreateInfo& aInfo) |
|
464 |
// |
|
465 |
// Confirm that the process has been loaded O.K. |
|
466 |
// |
|
467 |
{ |
|
468 |
__KTRACE_OPT(KPROC,Kern::Printf("DProcess::Loaded")); |
|
469 |
||
470 |
// |
|
471 |
// Update our code segment and dependents |
|
472 |
// |
|
473 |
DCodeSeg::Wait(); |
|
474 |
||
475 |
TInt r = KErrNone; |
|
476 |
||
477 |
if (!(iTempCodeSeg->iMark & DCodeSeg::EMarkLoaded)) |
|
478 |
{ |
|
479 |
// newly loaded code segment, not another instance of same |
|
480 |
r = iTempCodeSeg->Loaded(aInfo); |
|
481 |
} |
|
482 |
||
483 |
if (r == KErrNone) |
|
484 |
r = OpenDeps(); |
|
485 |
||
486 |
DCodeSeg::Signal(); |
|
487 |
||
488 |
if (r != KErrNone) |
|
489 |
return r; |
|
490 |
||
491 |
if (iCodeSeg->iAttr & ECodeSegAttSMPSafe) |
|
492 |
iSMPUnsafeCount = 0; |
|
493 |
else |
|
494 |
{ |
|
495 |
iSMPUnsafeCount = 1; |
|
496 |
#ifdef __SMP__ |
|
497 |
r = UpdateSMPSafe(); |
|
498 |
if (r != KErrNone) |
|
499 |
return r; |
|
500 |
#endif |
|
501 |
} |
|
502 |
FirstThread()->iMState=DThread::EReady; |
|
503 |
SetProtection(DObject::EGlobal); |
|
504 |
iAttributes &= ~EBeingLoaded; |
|
505 |
iReentryPoint = iCodeSeg->iEntryPtVeneer; |
|
506 |
||
507 |
// Send loaded process notification. |
|
508 |
__DEBUG_EVENT(EEventLoadedProcess, this); |
|
509 |
||
510 |
return KErrNone; |
|
511 |
} |
|
512 |
||
513 |
void DProcess::Resume() |
|
514 |
// |
|
515 |
// Resume a newly created process. Idempotent. Enter and return with system locked. |
|
516 |
// |
|
517 |
{ |
|
518 |
if (iAttributes&EBeingLoaded) |
|
519 |
K::PanicCurrentThread(EProcessNotLoaded); |
|
520 |
if (!(iAttributes&EResumed)) |
|
521 |
{ |
|
522 |
iAttributes|=EResumed; |
|
523 |
iCreatorId = iId; // Creator loses control over process once it has been resumed |
|
524 |
FirstThread()->Resume(); |
|
525 |
} |
|
526 |
} |
|
527 |
||
528 |
void DProcess::Die(TExitType aType, TInt aReason, const TDesC &aCategory) |
|
529 |
// |
|
530 |
// Kill a process. Enter and return with system unlocked and calling thread in critical section. |
|
531 |
// |
|
532 |
{ |
|
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|
533 |
__KTRACE_OPT(KPROC,Kern::Printf("Process %O Die: %d %d %S",this,aType,aReason,&aCategory)); |
0 | 534 |
|
535 |
TInt r=WaitProcessLock(); |
|
536 |
if (r!=KErrNone) |
|
537 |
return; // process already exiting |
|
538 |
NKern::LockSystem(); |
|
539 |
if (iAttributes&EBeingLoaded) |
|
540 |
{ |
|
541 |
// Load failed before UserSvr::ProcessLoaded() was called. |
|
542 |
// The thread is still runnable however, since UserSvr::ProcessCreate() must have succeeded. |
|
543 |
// We just need to set the thread state so it can be resumed. |
|
544 |
FirstThread()->iMState=DThread::EReady; |
|
545 |
} |
|
546 |
if (iExitType==EExitPending) |
|
547 |
{ |
|
548 |
iExitType = (TUint8)aType; |
|
549 |
iExitReason=aReason; |
|
550 |
if (iExitType==EExitKill) |
|
551 |
iExitCategory=KLitKill; |
|
552 |
else if (iExitType==EExitTerminate) |
|
553 |
iExitCategory=KLitTerminate; |
|
554 |
else |
|
555 |
iExitCategory=aCategory; |
|
556 |
||
557 |
if (iExitType!=EExitKill && (iFlags & (KProcessFlagSystemPermanent|KProcessFlagSystemCritical))) |
|
558 |
K::Fault(K::ESystemProcessPanic); |
|
559 |
if (iFlags & KProcessFlagSystemPermanent) |
|
560 |
K::Fault(K::EPermanentProcessExit); |
|
561 |
||
562 |
// Kill all threads; when the last one exits the process will be cleaned up. |
|
563 |
TBool killMe = KillAllThreads(aType, aReason, aCategory); |
|
564 |
if (killMe) |
|
565 |
{ |
|
566 |
DThread* pC=TheCurrentThread; |
|
567 |
pC->iExitType=(TUint8)iExitType; |
|
568 |
pC->iExitReason=iExitReason; |
|
569 |
pC->iExitCategory=iExitCategory; |
|
570 |
NKern::DeferredExit(); |
|
571 |
} |
|
572 |
} |
|
573 |
NKern::UnlockSystem(); |
|
574 |
SignalProcessLock(); |
|
575 |
} |
|
576 |
||
577 |
TBool DProcess::KillAllThreads(TExitType aType, TInt aReason, const TDesC &aCategory) |
|
578 |
// |
|
579 |
// Kill all threads in a process. Enter and return with system locked, the process lock held and |
|
580 |
// calling thread in a critical section. Returns whether the current thread needs to exit too. |
|
581 |
// |
|
582 |
{ |
|
583 |
TBool killMe=EFalse; |
|
584 |
DThread* pC=TheCurrentThread; |
|
585 |
SDblQueLink* pLink=iThreadQ.First(); |
|
586 |
while (pLink!=&iThreadQ.iA) |
|
587 |
{ |
|
588 |
DThread* pT=_LOFF(pLink,DThread,iProcessLink); |
|
589 |
pLink=pLink->iNext; |
|
590 |
if (pT!=pC) |
|
591 |
{ |
|
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parents:
0
diff
changeset
|
592 |
// If killing pT will cause a system crash then force that to happen in the context of the |
a179b74831c9
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
593 |
// current thread |
a179b74831c9
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
594 |
if(pT->iFlags & KThreadFlagSystemPermanent) |
a179b74831c9
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
595 |
{ |
a179b74831c9
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
596 |
K::Fault(K::EPermanentThreadExit); |
a179b74831c9
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
597 |
} |
a179b74831c9
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
598 |
if (aType != EExitKill && (pT->iFlags & KThreadFlagSystemCritical)) |
a179b74831c9
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
599 |
{ |
a179b74831c9
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
600 |
K::Fault(K::ESystemThreadPanic); |
a179b74831c9
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
601 |
} |
0 | 602 |
// Need to stop the current thread being killed as a consequence of killing pT |
603 |
pT->iFlags &= ~(KThreadFlagProcessPermanent|KThreadFlagProcessCritical); |
|
604 |
pT->Die(aType, aReason, aCategory); |
|
605 |
} |
|
606 |
else |
|
607 |
{ |
|
608 |
killMe=ETrue; |
|
609 |
NKern::UnlockSystem(); |
|
610 |
} |
|
611 |
NKern::LockSystem(); |
|
612 |
} |
|
613 |
return killMe; |
|
614 |
} |
|
615 |
||
616 |
void DProcess::AddThread(DThread &aThread) |
|
617 |
{ |
|
618 |
__KTRACE_OPT(KPROC,Kern::Printf("AddThread %O to %O",&aThread,this)); |
|
619 |
iThreadQ.Add(&aThread.iProcessLink); |
|
620 |
} |
|
621 |
||
622 |
TInt DProcess::NewThread(DThread*& aThread, SThreadCreateInfo& anInfo, TInt* aHandle, TOwnerType aType) |
|
623 |
{ |
|
624 |
__KTRACE_OPT(KTHREAD,Kern::Printf("NewThread proc %O, func %08x ptr %08x",this,anInfo.iFunction,anInfo.iPtr)); |
|
256
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
625 |
__KTRACE_OPT(KTHREAD,Kern::Printf("type %d name %S pri %d",anInfo.iType,&anInfo.iName,anInfo.iInitialThreadPriority)); |
0 | 626 |
if (aHandle) |
627 |
*aHandle=0; |
|
628 |
TInt r=GetNewThread(aThread,anInfo); |
|
629 |
__KTRACE_FAIL(r,Kern::Printf("GNT: %d",r)); |
|
630 |
DThread* pT=aThread; |
|
631 |
if (r==KErrNone) |
|
632 |
{ |
|
633 |
r=pT->Create(anInfo); |
|
634 |
__KTRACE_FAIL(r,Kern::Printf("NTC: %d",r)); |
|
635 |
if (r==KErrNone && aHandle) |
|
636 |
{ |
|
637 |
r=K::MakeHandleAndOpen(aType,pT,*aHandle); |
|
638 |
__KTRACE_FAIL(r,Kern::Printf("NT MHO: %d",r)); |
|
639 |
} |
|
640 |
if (r==KErrNone) |
|
641 |
{ |
|
642 |
r=WaitProcessLock(); |
|
643 |
if (r==KErrNone) |
|
644 |
{ |
|
645 |
NKern::LockSystem(); |
|
646 |
if (iExitType==EExitPending) |
|
647 |
{ |
|
648 |
AddThread(*pT); |
|
649 |
pT->iMState=DThread::EReady; |
|
650 |
// set fully constructed flag here |
|
651 |
} |
|
652 |
else |
|
653 |
r=KErrDied; |
|
654 |
NKern::UnlockSystem(); |
|
655 |
SignalProcessLock(); |
|
656 |
__KTRACE_FAIL(r,Kern::Printf("NT ADD: %d",r)); |
|
657 |
} |
|
658 |
else |
|
659 |
r=KErrDied; |
|
660 |
} |
|
661 |
} |
|
662 |
if (r==KErrNone) |
|
663 |
{ |
|
664 |
if (anInfo.iType == EThreadUser) |
|
665 |
{ |
|
666 |
pT->iUserThreadState = DThread::EUserThreadCreated; |
|
667 |
__e32_atomic_tas_ord32(&iUserThreadsRunning, 1, 1, 0); |
|
668 |
} |
|
669 |
#ifdef BTRACE_THREAD_IDENTIFICATION |
|
670 |
if(BTrace::Filter(BTrace::EThreadIdentification)) |
|
671 |
{ |
|
672 |
DObjectCon* threads=Kern::Containers()[EThread]; |
|
673 |
threads->Wait(); // hold mutex so traces below don't get mixed up with other thread creation traces |
|
674 |
TKName nameBuf; |
|
675 |
Name(nameBuf); |
|
676 |
BTraceN(BTrace::EThreadIdentification,BTrace::EProcessName,&pT->iNThread,this,nameBuf.Ptr(),nameBuf.Size()); |
|
677 |
pT->Name(nameBuf); |
|
678 |
BTraceN(BTrace::EThreadIdentification,BTrace::EThreadCreate,&pT->iNThread,this,nameBuf.Ptr(),nameBuf.Size()); |
|
679 |
BTrace12(BTrace::EThreadIdentification,BTrace::EThreadId,&pT->iNThread,this,pT->iId); |
|
680 |
threads->Signal(); |
|
681 |
} |
|
682 |
#endif |
|
683 |
__DEBUG_EVENT2(EEventAddThread, pT, TheCurrentThread); |
|
684 |
} |
|
685 |
else if (pT) |
|
686 |
{ |
|
687 |
if (aHandle && *aHandle) |
|
688 |
{ |
|
689 |
K::HandleClose(*aHandle); |
|
690 |
*aHandle=0; |
|
691 |
} |
|
692 |
pT->Stillborn(); |
|
693 |
aThread=NULL; |
|
694 |
} |
|
695 |
__KTRACE_FAIL(r,Kern::Printf("NT: %d",r)); |
|
696 |
return r; |
|
697 |
} |
|
698 |
||
699 |
void DProcess::Rendezvous(TInt aReason) |
|
700 |
// |
|
701 |
// Enter and return with system unlocked and calling thread in critical section. |
|
702 |
// |
|
703 |
{ |
|
704 |
TLogon::CompleteAll(iTargetLogons, TLogon::ETargetRendezvous, aReason); |
|
705 |
} |
|
706 |
||
707 |
TInt DProcess::Logon(TRequestStatus* aStatus, TBool aRendezvous) |
|
708 |
{ |
|
709 |
TInt r = KErrNoMemory; |
|
710 |
DThread* pC = TheCurrentThread; |
|
711 |
__KTRACE_OPT(KTHREAD, Kern::Printf("Thread %O Logon to process %O, status at %08x rdv=%x", |
|
712 |
pC, this, aStatus, aRendezvous)); |
|
713 |
||
714 |
TLogon* pL = new TLogon; |
|
715 |
if (pL) |
|
716 |
{ |
|
717 |
TUint32 type = TLogon::ETargetProcess; |
|
718 |
if (aRendezvous) |
|
719 |
type |= TLogon::ERendezvous; |
|
720 |
r = pL->Attach(iTargetLogons, pC, this, aStatus, type); |
|
721 |
if (r != KErrNone) |
|
722 |
pL->Close(); |
|
723 |
} |
|
724 |
||
725 |
__KTRACE_OPT(KTHREAD, Kern::Printf("DProcess::Logon ret %d", r)); |
|
726 |
return r; |
|
727 |
} |
|
728 |
||
729 |
void DProcess::BTracePrime(TInt aCategory) |
|
730 |
{ |
|
731 |
#ifdef BTRACE_THREAD_IDENTIFICATION |
|
732 |
if(aCategory==BTrace::EThreadIdentification || aCategory==-1) |
|
733 |
BTrace4(BTrace::EThreadIdentification,BTrace::EProcessCreate,this); |
|
734 |
#endif |
|
735 |
} |
|
736 |
||
737 |
#ifdef __SMP__ |
|
256
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
738 |
void SMPUnsafeGroupDestroyFn(TAny* aGroup) |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
739 |
{ |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
740 |
Kern::Free(aGroup); |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
741 |
} |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
742 |
|
0 | 743 |
TInt DProcess::UpdateSMPSafe() |
744 |
{ |
|
745 |
TUint32 config = TheSuperPage().KernelConfigFlags(); |
|
746 |
if (!(config & (EKernelConfigSMPUnsafeCompat|EKernelConfigSMPUnsafeCPU0)) || this == K::TheKernelProcess) |
|
747 |
return KErrNone; |
|
748 |
__KTRACE_OPT(KPROC,Kern::Printf("Process %O UpdateSMPSafe count=%d",this,iSMPUnsafeCount)); |
|
749 |
TInt r=WaitProcessLock(); |
|
750 |
(void)r; |
|
751 |
__NK_ASSERT_DEBUG(r==KErrNone); |
|
752 |
if ((config & EKernelConfigSMPUnsafeCompat) && !iSMPUnsafeGroup) |
|
753 |
{ |
|
754 |
SNThreadGroupCreateInfo info; |
|
755 |
info.iCpuAffinity = KCpuAffinityAny; |
|
256
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
756 |
NThreadGroup* g = (NThreadGroup*)Kern::Alloc(sizeof(NThreadGroup)); |
0 | 757 |
r = KErrNoMemory; |
256
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
758 |
if (g) |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
759 |
{ |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
760 |
info.iDestructionDfc = new TDfc(&SMPUnsafeGroupDestroyFn, g, K::SvMsgQ, 2); |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
761 |
if (info.iDestructionDfc) |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
762 |
r = NKern::GroupCreate(g, info); |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
763 |
if (r != KErrNone) |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
764 |
{ |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
765 |
delete info.iDestructionDfc; |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
766 |
Kern::Free(g); |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
767 |
g = 0; |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
768 |
} |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
769 |
iSMPUnsafeGroup = g; |
c1f20ce4abcf
Revision: 201035
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
249
diff
changeset
|
770 |
} |
0 | 771 |
} |
772 |
if (r==KErrNone) |
|
773 |
{ |
|
774 |
SDblQueLink* pLink=iThreadQ.First(); |
|
775 |
while (pLink!=&iThreadQ.iA) |
|
776 |
{ |
|
777 |
DThread* pT=_LOFF(pLink,DThread,iProcessLink); |
|
778 |
NKern::QueueUserModeCallback(&pT->iNThread, &pT->iSMPSafeCallback); |
|
779 |
pLink=pLink->iNext; |
|
780 |
} |
|
781 |
} |
|
782 |
SignalProcessLock(); |
|
783 |
return r; |
|
784 |
} |
|
785 |
#endif |
|
786 |