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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/test2/test2.c
**
** Purpose: Test that we are able to nest critical section calls.
** The initial thread makes a call to EnterCriticalSection once,
** blocking on a CRITICAL_SECTION object and creates a new thread.
** The newly created thread blocks on the same CRITICAL_SECTION object.
** The first thread now makes a call to LeaveCriticalSection.
** Test to see that the new thread doesn't get unblocked.
**
** Dependencies: CreateThread
** InitializeCriticalSection
** EnterCriticalSection
** LeaveCriticalSection
** DeleteCriticalSection
** WaitForSingleObject
**
**
**=========================================================*/
#include <palsuite.h>
CRITICAL_SECTION CriticalSection;
volatile BOOL t0_tflag = FAIL; /* thread 0 timeout flag */
volatile BOOL t1_aflag = FAIL; /* thread 1 access flag */
volatile BOOL t1_cflag = FAIL; /* thread 1 critical section flag */
volatile BOOL bTestResult = FAIL;
DWORD PALAPI Thread(LPVOID lpParam)
{
t1_aflag = PASS;
EnterCriticalSection(&CriticalSection);
t1_cflag = PASS;
LeaveCriticalSection(&CriticalSection);
return 0;
}
int __cdecl main (int argc, char **argv)
{
HANDLE hThread;
DWORD dwThreadId;
DWORD dwRet;
if(0 != (PAL_Initialize(argc, argv)))
{
return (bTestResult);
}
/*
* Create critical section object and enter it
*/
InitializeCriticalSection ( &CriticalSection );
EnterCriticalSection(&CriticalSection);
/*
* Create a suspended thread
*/
hThread = CreateThread(NULL,
0,
&Thread,
(LPVOID) NULL,
CREATE_SUSPENDED,
&dwThreadId);
if (hThread == NULL)
{
Trace("PALSUITE ERROR: CreateThread call failed. GetLastError "
"returned %d.\n", GetLastError());
LeaveCriticalSection(&CriticalSection);
DeleteCriticalSection(&CriticalSection);
Fail("");
}
EnterCriticalSection(&CriticalSection);
/*
* Set priority of the thread to greater than that of the currently
* running thread so it is guaranteed to run.
*/
dwRet = (DWORD) SetThreadPriority(hThread, THREAD_PRIORITY_ABOVE_NORMAL);
if (0 == dwRet)
{
Trace("PALSUITE ERROR: SetThreadPriority (%p, %d) call failed.\n"
"GetLastError returned %d.\n", hThread,
THREAD_PRIORITY_NORMAL, GetLastError());
LeaveCriticalSection(&CriticalSection);
CloseHandle(hThread);
DeleteCriticalSection(&CriticalSection);
Fail("");
}
dwRet = ResumeThread(hThread);
if (-1 == dwRet)
{
Trace("PALSUITE ERROR: ResumeThread(%p) call failed.\nGetLastError "
"returned %d.\n", hThread, GetLastError());
LeaveCriticalSection(&CriticalSection);
CloseHandle(hThread);
DeleteCriticalSection(&CriticalSection);
Fail("");
}
/*
* Sleep until we know the thread has been invoked. This sleep in
* combination with the higher priority of the other thread should
* guarantee both threads block on the critical section.
*/
while (t1_aflag == FAIL)
{
Sleep(1);
}
LeaveCriticalSection(&CriticalSection);
switch ((WaitForSingleObject(
hThread,
10000))) /* Wait 10 seconds */
{
case WAIT_OBJECT_0:
/* Object (thread) is signaled */
LeaveCriticalSection(&CriticalSection);
CloseHandle(hThread);
DeleteCriticalSection(&CriticalSection);
Fail("PALSUITE ERROR: WaitForSingleObject(%p,%d) should have "
"returned\nWAIT_TIMEOUT ('%d'), instead it returned "
"WAIT_OBJECT_0 ('%d').\nA nested LeaveCriticalSection(%p) "
"call released both threads that were waiting on it!\n",
hThread, 10000, WAIT_TIMEOUT, WAIT_OBJECT_0, &CriticalSection);
break;
case WAIT_ABANDONED:
/*
* Object was mutex object whose owning
* thread has terminated. Shouldn't occur.
*/
Trace("PALSUITE ERROR: WaitForSingleObject(%p,%d) should have "
"returned\nWAIT_TIMEOUT ('%d'), instead it returned "
"WAIT_ABANDONED ('%d').\nGetLastError returned '%d'\n",
hThread, 10000, WAIT_TIMEOUT, WAIT_ABANDONED, GetLastError());
LeaveCriticalSection(&CriticalSection);
CloseHandle(hThread);
DeleteCriticalSection(&CriticalSection);
Fail("");
break;
case WAIT_FAILED: /* WaitForSingleObject function failed */
Trace("PALSUITE ERROR: WaitForSingleObject(%p,%d) should have "
"returned\nWAIT_TIMEOUT ('%d'), instead it returned "
"WAIT_FAILED ('%d').\nGetLastError returned '%d'\n",
hThread, 10000, WAIT_TIMEOUT, WAIT_FAILED, GetLastError());
LeaveCriticalSection(&CriticalSection);
CloseHandle(hThread);
DeleteCriticalSection(&CriticalSection);
Fail("");
break;
case WAIT_TIMEOUT:
/*
* We expect this thread to timeout waiting for the
* critical section object to become available.
*/
t0_tflag = PASS;
break;
}
LeaveCriticalSection(&CriticalSection);
if (WAIT_OBJECT_0 != WaitForSingleObject (hThread, 10000))
{
if (0 == CloseHandle(hThread))
{
Trace("PALSUITE ERROR: CloseHandle(%p) call failed.\n"
"WaitForSingleObject(%p,%d) should have returned "
"WAIT_OBJECT_0 ('%d').\nBoth calls failed. "
"Deleted CRITICAL_SECTION object which likely means\n"
"thread %p is now in an undefined state. GetLastError "
"returned '%d'.\n", hThread, hThread, 10000, WAIT_OBJECT_0,
hThread, GetLastError());
DeleteCriticalSection(&CriticalSection);
Fail("");
}
else
{
Trace("PALSUITE ERROR: WaitForSingleObject(%p,%d) should have "
"returned WAIT_OBJECT_0 ('%d').\n GetLastError returned "
"'%d'.\n", hThread, hThread, 10000, WAIT_OBJECT_0,
hThread, GetLastError());
DeleteCriticalSection(&CriticalSection);
Fail("");
}
}
if (0 == CloseHandle(hThread))
{
Trace("PALSUITE ERROR: CloseHandle(%p) call failed.\n"
"Deleted CRITICAL_SECTION object which likely means\n"
"thread %p is now in an undefined state. GetLastError "
"returned '%d'.\n", hThread, hThread, GetLastError());
DeleteCriticalSection(&CriticalSection);
Fail("");
}
DeleteCriticalSection(&CriticalSection);
/*
* Ensure both thread 0 experienced a wait timeout and thread 1
* accessed the critical section or fail the test, otherwise pass it.
*/
if ((t0_tflag == FAIL) || (t1_cflag == FAIL))
{
Trace("PALSUITE ERROR: Thread 0 returned %d when %d was expected.\n"
"Thread 1 returned %d when %d was expected.\n", t0_tflag,
PASS, t1_cflag, PASS);
bTestResult=FAIL;
}
else
{
bTestResult=PASS;
}
PAL_TerminateEx(bTestResult);
return (bTestResult);
}
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