--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/emul/t_emul.cpp Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,374 @@
+// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// e32test\emul\t_emul.cpp
+// Overview:
+// Test the mechanism to escape threads from the emulator in order
+// to block on Windows objects
+// Test launching processes doesn't leak windows TLS indices
+// API Information:
+// Emulator
+// Details:
+// - Test the mechanism to escape threads from the emulator in order
+// to block on Windows objects:
+// - test escape and re-enter mechanism.
+// - block on Windows in EPOC thread and escaped EPOC thread.
+// Platforms/Drives/Compatibility:
+// All.
+// Assumptions/Requirement/Pre-requisites:
+// Failures and causes:
+// Base Port information:
+//
+//
+
+#define __E32TEST_EXTENSION__
+#include <f32file.h>
+#include <e32atomics.h>
+#include "e32std.h"
+#include "e32std_private.h"
+#include "e32test.h"
+#include "emulator.h"
+#include "t_emul.h"
+
+#define WIN32_LEAN_AND_MEAN
+#pragma warning( disable : 4201 ) // nonstandard extension used : nameless struct/union
+#include <windows.h>
+#pragma warning( default : 4201 ) // nonstandard extension used : nameless struct/union
+
+LOCAL_D RTest test(_L("t_emul"));
+
+static TInt ELock;
+static HANDLE ESemaphore;
+static TInt EResult;
+
+TInt EscapeTimeoutThread(TAny*)
+ {
+ User::After(1000000);
+ if (__e32_atomic_add_ord32(&ELock, 1) == 0)
+ {
+ EResult=KErrTimedOut;
+ ReleaseSemaphore(ESemaphore,1,NULL);
+ }
+ return KErrNone;
+ }
+
+TInt EscapeSignalThread(TAny*)
+ {
+ if (__e32_atomic_add_ord32(&ELock, 1) == 0)
+ {
+ EResult=KErrNone;
+ ReleaseSemaphore(ESemaphore,1,NULL);
+ }
+ return KErrNone;
+ }
+
+TInt DoTestEscape(TBool aDoEscape)
+//
+// Test the mechanism to escape threads from the emulator in order to block on Windows objects
+//
+ {
+ ELock = 0;
+ EResult = KRequestPending;
+ ESemaphore = CreateSemaphoreA(NULL,0,1,NULL);
+ test (ESemaphore != NULL);
+ RThread t1,t2;
+ TRequestStatus s1,s2;
+ TInt r = t1.Create(KNullDesC,&EscapeSignalThread,0x1000,NULL,NULL);
+ test (r == KErrNone);
+ t1.SetPriority(EPriorityLess);
+ t1.Logon(s1);
+ t1.Resume();
+ r = t2.Create(KNullDesC,&EscapeTimeoutThread,0x1000,NULL,NULL);
+ test (r == KErrNone);
+ t2.SetPriority(EPriorityMore);
+ t2.Logon(s2);
+ t2.Resume();
+//
+ if (aDoEscape)
+ Emulator::Escape();
+ r = WaitForSingleObject(ESemaphore,INFINITE);
+ if (aDoEscape)
+ Emulator::Reenter();
+ test (r==WAIT_OBJECT_0);
+//
+ r = EResult;
+ t1.Kill(0);
+ t2.Kill(0);
+ t1.Close();
+ t2.Close();
+ User::WaitForRequest(s1);
+ User::WaitForRequest(s2);
+//
+ CloseHandle(ESemaphore);
+ return r;
+ }
+
+void TestEscape()
+//
+// Test the mechanism to escape threads from the emulator in order to block on Windows objects
+//
+ {
+ test.Start(_L("Test escape and reenter mechanism"));
+ for (TInt i = 0;i<10000;++i)
+ {
+ Emulator::Escape();
+ if (i%100 == 0)
+ Sleep(10);
+ Emulator::Reenter();
+ }
+ test.Next(_L("Block on Windows in EPOC thread"));
+ TInt r = DoTestEscape(EFalse);
+ test (r == KErrTimedOut);
+ test.Next(_L("Block on Windows in escaped EPOC thread"));
+ r = DoTestEscape(ETrue);
+ test (r == KErrNone);
+ test.End();
+ }
+
+TInt CountRemainingTlsIndicies()
+ {
+ const TInt KMax = 2000;
+
+ TBool allocated[KMax];
+ memclr(allocated, sizeof(TBool) * KMax);
+ TInt i;
+ for (i = 0 ; i < KMax ; ++i)
+ {
+ TInt index = TlsAlloc();
+ if (index == TLS_OUT_OF_INDEXES)
+ break;
+ test(index >= 0 && index < KMax);
+ allocated[index] = ETrue;
+ }
+ for (TInt j = 0 ; j < KMax ; ++j)
+ {
+ if (allocated[j])
+ test(TlsFree(j));
+ }
+ return i;
+ }
+
+void RunSlave(TSlaveAction aAction)
+ {
+ RProcess p;
+ TBuf<8> arg;
+ arg.Format(_L("%d"), aAction);
+ test_KErrNone(p.Create(KTEmulSlaveName, arg));
+ p.Resume();
+ TRequestStatus status;
+ p.Logon(status);
+ User::WaitForRequest(status);
+ test_KErrNone(status.Int());
+ test_Equal(EExitKill, p.ExitType());
+ p.Close();
+ }
+
+void TestRuntimeCleanup()
+ {
+ test.Start(_L("Test Codewarrior runtime library is correctly cleaned up"));
+ TInt initIndicies = CountRemainingTlsIndicies();
+
+ test.Next(_L("Test creating a process doesn't leak windows TLS indicies"));
+ RunSlave(ESlaveDoNothing);
+ test_Equal(initIndicies, CountRemainingTlsIndicies());
+
+ test.Next(_L("Test leaving in an exe doesn't leak windows TLS indicies"));
+ RunSlave(ESlaveTrapExceptionInExe);
+ test_Equal(initIndicies, CountRemainingTlsIndicies());
+
+ test.Next(_L("Test leaving in a linked DLL doesn't leak windows TLS indicies"));
+ RunSlave(ESlaveTrapExceptionInLinkedDll);
+ test_Equal(initIndicies, CountRemainingTlsIndicies());
+
+ test.Next(_L("Test leaving in a loaded DLL doesn't leak windows TLS indicies"));
+ RunSlave(ESlaveTrapExceptionInLoadedDll);
+ test_Equal(initIndicies, CountRemainingTlsIndicies());
+
+ test.Next(_L("Test cleanup doesn't happen while DLL still loaded"));
+ RLibrary l;
+ test_KErrNone(l.Load(KTEmulDll2Name));
+ RunSlave(ESlaveTrapExceptionInLoadedDll);
+ TInt midCount = CountRemainingTlsIndicies();
+ test(initIndicies > midCount);
+
+ test.Next(_L("Test previous detach doesn't cause runtime to be re-initalised"));
+ TTrapExceptionInDllFunc func =
+ (TTrapExceptionInDllFunc)l.Lookup(KTrapExceptionInDllOrdinal);
+ test_NotNull(func);
+ func();
+ test_Equal(midCount, CountRemainingTlsIndicies());
+ l.Close();
+ test_Equal(initIndicies, CountRemainingTlsIndicies());
+
+ test.End();
+ }
+
+
+void DoSomething2L()
+ {
+ test.Printf(_L("@\n"));
+ }
+
+
+void DoSomething1L()
+ {
+ TInt i = -1, j = 1;
+ for ( ; ; )
+ {
+ i++;
+ //DoSomething2L() must only be called once , else we know that trap mechanism didn't work
+ test( i<2);
+ if (i == j)
+ {
+ User::Leave(KErrNotFound);
+ }
+
+ TRAP_IGNORE(DoSomething2L());
+ TRAPD(errr, DoSomething2L());
+ TInt r;
+ TRAP(r, DoSomething2L());
+
+ }
+ }
+
+
+void LeaveIfArgIsTwo(TInt aCall);
+
+class CFred : public CBase
+{
+ public:
+static CFred* NewLC();
+ CFred();
+ ~CFred();
+};
+
+void DoSomething3L()
+ {
+ // Push something on the cleanup stack so we can see whyen it gets cleaned up.
+ CFred *fred = CFred::NewLC();
+
+ TInt beforeFunc=0;
+ TInt betweenFuncAndTRAPD=0;
+ TInt afterTRAPD=0;
+ for(TInt loop=1; loop<=2; ++loop)
+ {
+ ++beforeFunc;
+ test.Printf(_L("Before LeaveIfArgIsTwo()\n"));
+
+ // The first time around the loop, this function call works.
+ // The second time, it leaves KErrGeneral
+ // Then when TRAP mechanism isn't working properly the emulator (correctly)
+ // would delete fred, and (incorrectly) jump to the line
+ // just after the TRAPD call a few lines further down the file!
+ LeaveIfArgIsTwo(loop);
+
+ ++betweenFuncAndTRAPD;
+ test.Printf(_L("Between LeaveIfArgIsTwo() and TRAPD\n"));
+
+ TRAPD(err, test.Printf(_L("Inside TRAPD\n") ) );
+
+
+ // It should only be possible to reach this section of code by executing all the lines
+ // between LeaveIfArgIsTwo and here.
+ ++afterTRAPD;
+
+ }
+
+ // Should NEVER get here because LeaveIfArgIsTwo did a leave the second time around the loop
+ test.Printf(_L("After loop (should NEVER get here) -\n\
+ beforeFunc %d\n\
+ betweenFuncAndTRAPD %d\n\
+ afterTRAPD %d\n"),
+ beforeFunc, betweenFuncAndTRAPD, afterTRAPD);
+
+ test.Printf(_L("It should be impossible for afterTRAPD to be larger than betweenFuncAndTRAPD\n"));
+ test(afterTRAPD <= betweenFuncAndTRAPD);
+
+ // Cleanup our cleanup stack.
+ CleanupStack::PopAndDestroy(&fred);
+ }
+
+void LeaveIfArgIsTwo(TInt aCall)
+ {
+
+ test.Printf(_L("aCall %d\n"), aCall);
+ if(aCall == 2)
+ {
+ User::Leave(KErrGeneral);
+ }
+ }
+
+CFred *CFred::NewLC()
+ {
+ CFred *self = new(ELeave) CFred;
+ CleanupStack::PushL(self);
+ return self;
+ }
+
+CFred::CFred()
+ {
+ test.Printf(_L("CFred %x\n"), this);
+ }
+
+CFred::~CFred()
+ {
+ test.Printf(_L("~CFred %x\n"), this);
+ }
+
+
+
+GLDEF_C TInt E32Main()
+//
+//
+//
+ {
+ test.Title();
+ test.Start(_L("Starting tests ..."));
+
+ // Turn off evil lazy dll unloading
+ RLoader l;
+ test(l.Connect()==KErrNone);
+ test(l.CancelLazyDllUnload()==KErrNone);
+ l.Close();
+
+ TestEscape();
+#ifdef __CW32__
+ TestRuntimeCleanup();
+#endif
+
+ // The following tests were added to test that the TRAP mechanism works correctly in case of
+ // nested TRAP's. A compiler bug (winscw) caused the following tests to fail, since the wrong
+ // trap handler would be invoked, when User::Leave() was called.
+
+ test.Next(_L("Check User::Leave is handled by the correct TRAP handler when nested TRAPs are present - Simple scenario\n"));
+
+ TRAPD(err, DoSomething1L());
+ test(err == KErrNotFound);
+
+ test.Next(_L("Check User::Leave is handled by the correct TRAP handler when nested TRAPs are present - Cleanup stack scenario\n"));
+ __UHEAP_MARK;
+ CTrapCleanup* tc = CTrapCleanup::New();
+ if (tc == 0) return KErrNoMemory;
+
+ TRAPD(err2, DoSomething3L());
+ test(err2==KErrGeneral);
+
+ delete tc;
+ __UHEAP_MARKEND;
+
+
+ test.End();
+ test.Close();
+ return KErrNone;
+ }
+