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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: WFSOMutexTest.c
**
** Purpose: Test for WaitForSingleObjectTest.
** Create Semaphore Object
** Create Two Threads, Each Threads does WFSO for the Semaphore Object
** Increments Counter
** Releases Semaphore
** Test Passes if the above operations are successful
**
**
**
**=========================================================*/
#include <palsuite.h>
#define NUMBER_OF_WORKER_THREADS 2
//Declaring Variables
HANDLE hSemaphore = NULL;
unsigned int globalcounter =0;
int testReturnCode = PASS;
//Declaring Function Prototypes
DWORD PALAPI WFSOSemaphoreTest(LPVOID params);
void incrementCounter(void);
int __cdecl main(int argc, char **argv)
{
//Declare local variables
int i =0;
int cMax = 2;
int returnCode = 0;
// 2 dimensional array to hold thread handles for each worker thread
HANDLE hThread[NUMBER_OF_WORKER_THREADS];
DWORD dwThreadId=0;
//Initialize PAL
if(0 != (PAL_Initialize(argc, argv)))
{
return ( FAIL );
}
//Create Semaphore
hSemaphore = CreateSemaphore(
NULL, // no security attributes
cMax, // initial count
cMax, // maximum count
NULL); // unnamed semaphore
if (hSemaphore == NULL)
{
// Check for error.
Fail("Create Semaphore Failed, GetLastError: %d\n", GetLastError());
}
//Spawn 2 worker threads
for (i=0;i<NUMBER_OF_WORKER_THREADS;i++)
{
//Create Thread
hThread[i] = CreateThread(
NULL,
0,
WFSOSemaphoreTest,
NULL,
0,
&dwThreadId);
if ( NULL == hThread[i] )
{
Fail ( "CreateThread() returned NULL. Failing test.\n"
"GetLastError returned %d\n", GetLastError());
}
}
/* Test running */
returnCode = WaitForMultipleObjects( NUMBER_OF_WORKER_THREADS, hThread, TRUE, 5000);
if( WAIT_OBJECT_0 != returnCode )
{
Trace("Wait for Object(s) returned %d, and GetLastError value is %d\n", returnCode, GetLastError());
testReturnCode = FAIL;
}
//Close thread handles
for (i=0;i<NUMBER_OF_WORKER_THREADS;i++)
{
if (0==CloseHandle(hThread[i]))
{
Trace("Could not Close thread handle\n");
Fail ( "GetLastError returned %d\n", GetLastError());
}
}
//Close Semaphore Handle
if (0==CloseHandle(hSemaphore))
{
Trace("Could not close semaphore handle\n");
Fail ( "GetLastError returned %d\n", GetLastError());
}
PAL_TerminateEx(testReturnCode);
return ( testReturnCode );
}
void incrementCounter(void)
{
if (INT_MAX == globalcounter)
{
globalcounter = 0;
}
globalcounter++;
Trace("Global Counter Value: %d \n", globalcounter);
}
DWORD PALAPI WFSOSemaphoreTest(LPVOID params)
{
DWORD dwWaitResult;
// Request ownership of Semaphore
dwWaitResult = WaitForSingleObject(
hSemaphore, // handle to semaphore
0L); // zero-second time-out interval
switch (dwWaitResult)
{
// The semaphore object was signaled.
case WAIT_OBJECT_0:
{
incrementCounter();
// Increment the count of the semaphore.
if (!ReleaseSemaphore(
hSemaphore, // handle to semaphore
1, // increase count by one
NULL) ) // not interested in previous count
{
Fail ( "ReleaseSemaphore() returned NULL. Failing test.\n"
"GetLastError returned %d\n", GetLastError());
}
break;
}
// Semaphore was nonsignaled, so a time-out occurred.
case WAIT_TIMEOUT:
{
Fail ( "Semaphore was nonsignaled, so a time-out occurred. Failing test.\n"
"GetLastError returned %d\n", GetLastError());
return FALSE;
}
}
return 1;
}
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