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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: test5.c
**
** Dependencies: PAL_Initialize
** PAL_Terminate
** CreateEvent
** SetEvent
** CreateThread
** ResumeThread
** WaitForSingleObject
** CloseHandle
**
** Purpose:
**
** Test to ensure proper operation of the QueueUserAPC()
** API by trying to queue and activate APC functions on
** a thread that was created suspended, prior to resuming
** it. We're verifying the following behavior:
**
** "If an application queues an APC before the thread begins
** running, the thread begins by calling the APC function.
** After the thread calls an APC function, it calls the APC
** functions for all APCs in its APC queue."
**
**
**===========================================================================*/
#include <palsuite.h>
static HANDLE hEvent = NULL;
static BOOL bAPCExecuted = FALSE;
VOID PALAPI APCFunc( ULONG_PTR dwParam )
{
bAPCExecuted = TRUE;
}
/**
* ThreadFunc
*
* Dummy thread function for APC queuing.
*/
DWORD PALAPI ThreadFunc( LPVOID param )
{
DWORD ret = 0;
/* alertable wait until the global event is signalled */
ret = WaitForSingleObject( hEvent, INFINITE );
if( ret != WAIT_OBJECT_0 )
{
Fail( "ERROR:WaitForSingleObject() returned %lu, "
"expected WAIT_OBJECT_0\n",
ret );
}
return 0;
}
int __cdecl main( int argc, char **argv )
{
/* local variables */
HANDLE hThread = NULL;
DWORD IDThread;
DWORD ret;
BOOL bResult = FALSE;
/* PAL initialization */
if( (PAL_Initialize(argc, argv)) != 0 )
{
return( FAIL );
}
/* create an event for the other thread to wait on */
hEvent = CreateEvent( NULL, TRUE, FALSE, NULL );
if( hEvent == NULL )
{
Fail( "ERROR:%lu:CreateEvent() call failed\n", GetLastError() );
}
/* run another dummy thread to cause notification of the library */
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() );
if( ! CloseHandle( hEvent ) )
{
Trace( "ERROR:%lu:CloseHandle() call failed\n", GetLastError() );
}
Fail( "test failed\n" );
}
/* queue our APC on the suspended thread */
ret = QueueUserAPC( APCFunc, hThread, 0 );
if( ret == 0 )
{
Fail( "ERROR:%lu:QueueUserAPC call failed\n", GetLastError() );
}
/* wait on the suspended thread */
ret = WaitForSingleObject( hThread, 2000 );
if( ret != WAIT_TIMEOUT )
{
Trace( "ERROR:WaitForSingleObject() returned %lu, "
"expected WAIT_TIMEOUT\n",
ret );
goto cleanup;
}
/* verify that the APC function was not executed */
if( bAPCExecuted == TRUE )
{
Trace( "ERROR:APC function was executed for a suspended thread\n" );
goto cleanup;
}
/* Resume the suspended thread */
ResumeThread( hThread );
/* do another wait on the resumed thread */
ret = WaitForSingleObject( hThread, 2000 );
/* verify that we got a WAIT_TIMEOUT result */
if( ret != WAIT_TIMEOUT )
{
Trace( "ERROR:WaitForSingleObject() returned %lu, "
"expected WAIT_TIMEOUT\n",
ret );
goto cleanup;
}
/* check that the APC function was actually executed */
if( bAPCExecuted == FALSE )
{
Trace( "ERROR:APC function was not executed\n" );
goto cleanup;
}
/* set the success flag */
bResult = PASS;
cleanup:
/* signal the event so the other thread will exit */
if( ! SetEvent( hEvent ) )
{
Trace( "ERROR:%lu:SetEvent() call failed\n", GetLastError() );
bResult = FAIL;
}
/* close the global event handle */
if( ! CloseHandle( hEvent ) )
{
Trace( "ERROR:%lu:CloseHandle() call failed\n", GetLastError() );
bResult = FAIL;
}
/* wait on the other thread to complete */
ret = WaitForSingleObject( hThread, 2000 );
if( ret != WAIT_OBJECT_0 )
{
Trace( "ERROR:WaitForSingleObject() returned %lu, "
"expected WAIT_OBJECT_0\n",
ret );
bResult = FAIL;
}
/* close the thread handle */
if( ! CloseHandle( hThread ) )
{
Trace( "ERROR:%lu:CloseHandle() call failed\n", GetLastError() );
bResult = FAIL;
}
/* output final failure result for failure case */
if( bResult == FAIL )
{
Fail( "test failed\n" );
}
/* PAL termination */
PAL_Terminate();
/* return success */
return PASS;
}
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