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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*=============================================================================
**
** Source: test2.c
**
** Purpose: Test to ensure DisableThreadLibraryCalls() called for one
** library will not disrupt THREAD_ATTACH notifications etc. by
** other loaded modules.
**
** Dependencies: PAL_Initialize
** PAL_Terminate
** Fail
** CreateThread
** ResumeThread
** LoadLibrary
** FreeLibrary
** GetProcAddress
** WaitForSingleObject
** GetLastError
**
**
**===========================================================================*/
#include <palsuite.h>
/* SHLEXT is defined only for Unix variants */
#if defined(SHLEXT)
#define rgchLibraryFile1 "dllmain1"SHLEXT
#define rgchLibraryFile2 "dllmain2"SHLEXT
#define szFunction "GetAttachCount"
#else
#define rgchLibraryFile1 "dllmain1"
#define rgchLibraryFile2 "dllmain2"
#define szFunction "_GetAttachCount@0"
#endif
/* define our test function type */
typedef int ( PALAPI *LPTESTFUNC )( void );
/**
* ThreadFunc
*
* Dummy thread function for causing DLL thread notifications.
*/
DWORD PALAPI ThreadFunc( LPVOID param )
{
/* simulate some brief "work" */
int i;
for( i=0; i<100000; i++ )
{
}
return 0;
}
/* main program entry point */
int __cdecl main( int argc, char **argv )
{
/* local variables */
HANDLE hLib1 = NULL;
HANDLE hLib2 = NULL;
LPTESTFUNC pFunc1;
LPTESTFUNC pFunc2;
int attachCount1a = 0;
int attachCount1b = 0;
int attachCount2a = 0;
int attachCount2b = 0;
HANDLE hThread = NULL;
DWORD IDThread;
DWORD dwRet;
BOOL bResult = FAIL;
/* initialize the PAL */
if( PAL_Initialize(argc, argv) != 0 )
{
return( FAIL );
}
/* Load the first test library */
hLib1 = LoadLibrary( rgchLibraryFile1 );
if(hLib1 == NULL)
{
Fail( "ERROR:%lu:LoadLibrary() call failed for %s\n",
GetLastError(),
rgchLibraryFile1 );
}
/* Load the second test library */
hLib2 = LoadLibrary( rgchLibraryFile2 );
if(hLib2 == NULL)
{
Trace( "ERROR:%lu:LoadLibrary() call failed for %s\n",
GetLastError(),
rgchLibraryFile2 );
if( ! FreeLibrary( hLib1 ) )
{
Trace( "ERROR:%lu:FreeLibrary() call failed\n", GetLastError() );
}
Fail( "test failed\n" );
}
/* Get the addresses of our test functions in the dlls */
pFunc1 = (LPTESTFUNC)GetProcAddress( hLib1, szFunction );
if( pFunc1 == NULL )
{
Trace( "ERROR:%lu%:Unable to find \"%s\" in library \"%s\"\n",
GetLastError(),
szFunction,
rgchLibraryFile1 );
goto cleanup;
}
pFunc2 = (LPTESTFUNC)GetProcAddress( hLib2, szFunction );
if( pFunc1 == NULL )
{
Trace( "ERROR:%lu%:Unable to find \"%s\" in library \"%s\"\n",
GetLastError(),
szFunction,
rgchLibraryFile2 );
goto cleanup;
}
/* disable thread library calls for the first library */
if( ! DisableThreadLibraryCalls( (HMODULE)hLib1 ) )
{
Trace( "ERROR:%lu:DisableThreadLibraryCalls() call failed\n",
GetLastError() );
goto cleanup;
}
/* Execute the test function to get the attach count */
attachCount1a = pFunc1();
attachCount2a = pFunc2();
/* run another dummy thread to cause notification of the libraries */
hThread = CreateThread( NULL, /* no security attributes */
0, /* use default stack size */
(LPTHREAD_START_ROUTINE) ThreadFunc, /* thread function */
(LPVOID) NULL, /* pass thread index as */
/* function argument */
CREATE_SUSPENDED, /* create suspended */
&IDThread ); /* returns thread id */
/* Check the return value for success. */
if( hThread == NULL )
{
/* error creating thread */
Trace( "ERROR:%lu:CreateThread() call failed\n",
GetLastError() );
goto cleanup;
}
/* Resume the suspended thread */
if( ResumeThread( hThread ) == -1 )
{
Trace( "ERROR:%lu:ResumeThread() call failed\n", GetLastError() );
goto cleanup;
}
/* wait for the thread to complete */
dwRet = WaitForSingleObject( hThread, INFINITE );
if( dwRet != WAIT_OBJECT_0 )
{
Trace( "ERROR: WaitForSingleObject returned %lu, "
"expected WAIT_OBJECT_0\n",
dwRet );
goto cleanup;
}
/* Execute the test function to get the new detach count */
attachCount1b = pFunc1();
attachCount2b = pFunc2();
/* validate the result */
if( attachCount1b != attachCount1a )
{
Trace( "FAIL: unexpected DLL attach count %d, expected %d\n",
attachCount1b,
attachCount1a );
goto cleanup;
}
/* validate the result */
if( attachCount2b != (attachCount2a + 1) )
{
Trace( "FAIL: unexpected DLL attach count %d, expected %d\n",
attachCount2b,
(attachCount2a + 1) );
goto cleanup;
}
bResult = PASS;
cleanup:
/* Unload the test libraries */
if( !FreeLibrary( hLib1 ) )
{
Trace( "ERROR:%u:FreeLibrary() failed on library \"%s\"\n",
GetLastError(),
rgchLibraryFile1 );
bResult = FAIL;
}
if( !FreeLibrary( hLib2 ) )
{
Trace( "ERROR:%u:FreeLibrary() failed on library \"%s\"\n",
GetLastError(),
rgchLibraryFile2 );
bResult = FAIL;
}
/* check for failure */
if( bResult == FAIL )
{
Fail( "test failed\n" );
}
/* terminate the PAL */
PAL_Terminate();
/* return success */
return PASS;
}
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