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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: criticalsectionfunctions/test4/test4.c
**
** Purpose: Test to see if threads blocked on a CRITICAL_SECTION object will
** be released in an orderly manner. This case looks at the following
** scenario. If one thread owns a CRITICAL_SECTION object and two threads
** block in EnterCriticalSection, trying to hold the already owned
** CRITICAL_SECTION object, when the first thread releases the CRITICAL_SECTION
** object, will one and only one of the waiters get unblocked?
**
** Dependencies: CreateThread
** InitializeCriticalSection
** EnterCriticalSection
** LeaveCriticalSection
** DeleteCriticalSection
** Sleep
** WaitForSingleObject
**
**
**=========================================================*/
#include <palsuite.h>
#define NUM_BLOCKING_THREADS 2
BOOL bTestResult;
CRITICAL_SECTION CriticalSection;
HANDLE hThread[NUM_BLOCKING_THREADS];
HANDLE hEvent;
DWORD dwThreadId[NUM_BLOCKING_THREADS];
volatile int flags[NUM_BLOCKING_THREADS] = {0,0};
DWORD PALAPI ThreadTest1(LPVOID lpParam)
{
EnterCriticalSection ( &CriticalSection );
flags[0] = 1;
return 0;
}
DWORD PALAPI ThreadTest2(LPVOID lpParam)
{
EnterCriticalSection ( &CriticalSection );
flags[1] = 1;
return 0;
}
int __cdecl main(int argc, char **argv)
{
DWORD dwRet;
DWORD dwRet1;
bTestResult = FAIL;
if ((PAL_Initialize(argc,argv)) != 0)
{
return(bTestResult);
}
/*
* Create Critical Section Object
*/
InitializeCriticalSection ( &CriticalSection );
EnterCriticalSection ( &CriticalSection );
hThread[0] = CreateThread(NULL,
0,
&ThreadTest1,
(LPVOID) 0,
CREATE_SUSPENDED,
&dwThreadId[0]);
if (hThread[0] == NULL)
{
Trace("PALSUITE ERROR: CreateThread(%p, %d, %p, %p, %d, %p) call "
"failed.\nGetLastError returned %d.\n", NULL, 0, &ThreadTest1,
(LPVOID) 0, CREATE_SUSPENDED, &dwThreadId[0], GetLastError());
LeaveCriticalSection(&CriticalSection);
DeleteCriticalSection ( &CriticalSection );
Fail("");
}
hThread[1] = CreateThread(NULL,
0,
&ThreadTest2,
(LPVOID) 0,
CREATE_SUSPENDED,
&dwThreadId[1]);
if (hThread[1] == NULL)
{
Trace("PALSUITE ERROR: CreateThread(%p, %d, %p, %p, %d, %p) call "
"failed.\nGetLastError returned %d.\n", NULL, 0, &ThreadTest2,
(LPVOID) 0, CREATE_SUSPENDED, &dwThreadId[1], GetLastError());
LeaveCriticalSection(&CriticalSection);
dwRet = ResumeThread(hThread[0]);
if (-1 == dwRet)
{
Trace("PALSUITE ERROR: ResumeThread(%p) call failed.\n"
"GetLastError returned '%d'.\n", hThread[0],
GetLastError());
}
dwRet = WaitForSingleObject(hThread[0], 10000);
if (WAIT_OBJECT_0 == dwRet)
{
Trace("PALSUITE ERROR: WaitForSingleObject(%p, %d) call "
"failed. '%d' was returned instead of the expected '%d'.\n"
"GetLastError returned '%d'.\n", hThread[0], 10000, dwRet,
WAIT_OBJECT_0, GetLastError());
}
if (0 == CloseHandle(hThread[0]))
{
Trace("PALSUITE NOTIFICATION: CloseHandle(%p) call failed.\n"
"GetLastError returned %d. Not failing tests.\n",
hThread[0], GetLastError());
}
DeleteCriticalSection(&CriticalSection);
Fail("");
}
/*
* Set other thread priorities to be higher than ours & Sleep to ensure
* we give up the processor.
*/
dwRet = (DWORD) SetThreadPriority(hThread[0],
THREAD_PRIORITY_ABOVE_NORMAL);
if (0 == dwRet)
{
Trace("PALSUITE ERROR: SetThreadPriority(%p, %d) call failed.\n"
"GetLastError returned %d", hThread[0],
THREAD_PRIORITY_ABOVE_NORMAL, GetLastError());
}
dwRet = (DWORD) SetThreadPriority(hThread[1],
THREAD_PRIORITY_ABOVE_NORMAL);
if (0 == dwRet)
{
Trace("PALSUITE ERROR: SetThreadPriority(%p, %d) call failed.\n"
"GetLastError returned %d", hThread[1],
THREAD_PRIORITY_ABOVE_NORMAL, GetLastError());
}
dwRet = ResumeThread(hThread[0]);
if (-1 == dwRet)
{
Trace("PALSUITE ERROR: ResumeThread(%p, %d) call failed.\n"
"GetLastError returned %d", hThread[0],
GetLastError() );
}
dwRet = ResumeThread(hThread[1]);
if (-1 == dwRet)
{
Trace("PALSUITE ERROR: ResumeThread(%p, %d) call failed.\n"
"GetLastError returned %d", hThread[0],
GetLastError());
}
Sleep (0);
LeaveCriticalSection (&CriticalSection);
dwRet = WaitForSingleObject(hThread[0], 10000);
dwRet1 = WaitForSingleObject(hThread[1], 10000);
if ((WAIT_OBJECT_0 == dwRet) ||
(WAIT_OBJECT_0 == dwRet1))
{
if ((1 == flags[0] && 0 == flags[1]) ||
(0 == flags[0] && 1 == flags[1]))
{
bTestResult = PASS;
}
else
{
bTestResult = FAIL;
Trace ("PALSUITE ERROR: flags[%d] = {%d,%d}. These values are"
"inconsistent.\nCriticalSection test failed.\n",
NUM_BLOCKING_THREADS, flags[0], flags[1]);
}
/* Fail the test if both threads returned WAIT_OBJECT_0 */
if ((WAIT_OBJECT_0 == dwRet) && (WAIT_OBJECT_0 == dwRet1))
{
bTestResult = FAIL;
Trace ("PALSUITE ERROR: WaitForSingleObject(%p, %d) and "
"WaitForSingleObject(%p, %d)\nboth returned dwRet = '%d'\n"
"One should have returned WAIT_TIMEOUT ('%d').\n",
hThread[0], 10000, hThread[1], 10000, dwRet, WAIT_TIMEOUT);
}
}
else
{
bTestResult = FAIL;
Trace ("PALSUITE ERROR: WaitForSingleObject(%p, %d) and "
"WaitForSingleObject(%p, %d)\nReturned dwRet = '%d' and\n"
"dwRet1 = '%d' respectively.\n", hThread[0], 10000, hThread[1],
10000, dwRet, dwRet1);
}
if (WAIT_OBJECT_0 == dwRet)
{
if (0 == CloseHandle(hThread[0]))
{
Trace("PALSUITE NOTIFICATION: CloseHandle(%p) call failed.\n"
"GetLastError returned %d. Not failing tests.\n",
hThread[0], GetLastError());
}
}
if (WAIT_OBJECT_0 == dwRet1)
{
if (0 == CloseHandle(hThread[1]))
{
Trace("PALSUITE NOTIFICATION: CloseHandle(%p) call failed.\n"
"GetLastError returned %d. Not failing tests.\n",
hThread[1], GetLastError());
}
}
/* Leaking the CS on purpose, since there is still a thread
waiting on it */
PAL_TerminateEx(bTestResult);
return (bTestResult);
}
|
