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// Copyright (c) 2007-2009 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\euser\epoc\win32\uc_cwhelp.cpp
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// This file contains the CodeWarrior specific helper code common to eexe and edll
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//
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//
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#include <e32std.h>
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#include <e32std_private.h>
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// Define LAZY_INIT to allow the runtime to construct itself only when necessary. This uses less
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// TLS indicies, but is a more fragile approach.
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//
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#define LAZY_INIT
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extern "C" {
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//
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// Dummy versions of CodeWarrior runtime functions.
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//
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// These are only called when we are linked against the DLL version of the runtime, or if these
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// functions aren't present in the static runtime.
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//
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// The original functions are defined in:
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// c:/apps/Metrowerks/OEM3.1/Symbian_Support/MSL/MSL_C/MSL_Win32/Src/ThreadLocalData.c
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// c:/apps/Metrowerks/OEM3.1/Symbian_Support/MSL/MSL_C/MSL_Win32/Src/startup.win32.c
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//
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#ifdef LAZY_INIT
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extern int _InitializeThreadDataIndex(void);
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extern int *__get_MSL_init_count(void);
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__declspec(weak) int *__get_MSL_init_count(void)
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{
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return NULL;
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}
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#else
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extern int _CRTStartup();
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#endif
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extern void _CleanUpMSL(void);
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}
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TBool InitCWRuntime()
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{
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#ifdef LAZY_INIT
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return ETrue;
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#else
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return _CRTStartup();
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#endif
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}
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TBool CleanupCWRuntime()
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{
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#ifdef LAZY_INIT
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int* init_count_ptr = __get_MSL_init_count();
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if (!init_count_ptr) // if we couldn't link this function, don't attempt cleanup
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return ETrue;
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if (!_InitializeThreadDataIndex()) // make sure runtime is initialised to known state
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return EFalse;
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if (++(*init_count_ptr) != 1) // make it look like _CRTStartup was called
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return EFalse;
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#else
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if (*__get_MSL_init_count() < 1) // _CRTStartup should have been called at least once
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return EFalse;
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*__get_MSL_init_count() = 1; // reset to one so _CleanUpMSL runs
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#endif
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_CleanUpMSL(); // call into runtime to do cleanup
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return ETrue;
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}
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