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/*
* File: cancel2.c
*
* Test Synopsis: Test SEH or C++ cancel exception handling within
* application exception blocks.
*
* Test Method (Validation or Falsification):
* -
*
* Requirements Tested:
* -
*
* Features Tested:
* -
*
* Cases Tested:
* -
*
* Description:
* -
*
* Environment:
* -
*
* Input:
* - None.
*
* Output:
* - File name, Line number, and failed expression on failure.
* - No output on success.
*
* Assumptions:
* - have working pthread_create, pthread_self, pthread_mutex_lock/unlock
* pthread_testcancel, pthread_cancel, pthread_join
*
* Pass Criteria:
* - Process returns zero exit status.
*
* Fail Criteria:
* - Process returns non-zero exit status.
*/
#if defined(_MSC_VER) || defined(__cplusplus)
#include "test.h"
/*
* Create NUMTHREADS threads in addition to the Main thread.
*/
enum {
NUMTHREADS = 4
};
typedef struct bag_t_ bag_t;
struct bag_t_ {
int threadnum;
int started;
/* Add more per-thread state variables here */
};
static bag_t threadbag[NUMTHREADS + 1];
static pthread_mutex_t waitLock = PTHREAD_MUTEX_INITIALIZER;
void *
mythread(void * arg)
{
int result = 0;
bag_t * bag = (bag_t *) arg;
assert(bag == &threadbag[bag->threadnum]);
assert(bag->started == 0);
bag->started = 1;
/* Set to known state and type */
assert(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) == 0);
#if 0
switch (bag->threadnum % 2)
{
case 0:
assert(pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0);
result = 0;
break;
case 1:
assert(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) == 0);
result = 1;
break;
}
#else
assert(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) == 0);
result = 1;
#endif
#if defined(_MSC_VER) && !defined(__cplusplus)
__try
#else
try
#endif
{
/* Wait for go from main */
assert(pthread_mutex_lock(&waitLock) == 0);
assert(pthread_mutex_unlock(&waitLock) == 0);
sched_yield();
for (;;)
{
pthread_testcancel();
}
}
#if defined(_MSC_VER) && !defined(__cplusplus)
__except(EXCEPTION_EXECUTE_HANDLER)
#else
#if defined(PtW32CatchAll)
PtW32CatchAll
#else
catch(...)
#endif
#endif
{
/*
* Should not get into here.
*/
result += 100;
}
/*
* Should not get to here either.
*/
result += 1000;
return (void *) result;
}
int
main()
{
int failed = 0;
int i;
int ret;
pthread_t t[NUMTHREADS + 1];
assert((t[0] = pthread_self()) != NULL);
assert(pthread_mutex_lock(&waitLock) == 0);
for (i = 1; i <= NUMTHREADS; i++)
{
threadbag[i].started = 0;
threadbag[i].threadnum = i;
assert(pthread_create(&t[i], NULL, mythread, (void *) &threadbag[i]) == 0);
}
/*
* Code to control or munipulate child threads should probably go here.
*/
Sleep(500);
ret = pthread_mutex_unlock(&waitLock);
assert(ret != EPERM);
assert(ret == 0);
Sleep(500);
for (i = 1; i <= NUMTHREADS; i++)
{
assert(pthread_cancel(t[i]) == 0);
}
/*
* Give threads time to run.
*/
Sleep(NUMTHREADS * 100);
/*
* Standard check that all threads started.
*/
for (i = 1; i <= NUMTHREADS; i++)
{
if (!threadbag[i].started)
{
failed |= !threadbag[i].started;
fprintf(stderr, "Thread %d: started %d\n", i, threadbag[i].started);
}
}
assert(!failed);
/*
* Check any results here. Set "failed" and only print output on failure.
*/
failed = 0;
for (i = 1; i <= NUMTHREADS; i++)
{
int fail = 0;
int result = 0;
assert(pthread_join(t[i], (void **) &result) == 0);
fail = (result != (int) PTHREAD_CANCELED);
if (fail)
{
fprintf(stderr, "Thread %d: started %d: location %d: cancel type %s\n",
i,
threadbag[i].started,
result,
((result % 2) == 0) ? "ASYNCHRONOUS" : "DEFERRED");
}
failed |= fail;
}
assert(!failed);
/*
* Success.
*/
return 0;
}
#else /* defined(_MSC_VER) || defined(__cplusplus) */
int
main()
{
return 0;
}
#endif /* defined(_MSC_VER) || defined(__cplusplus) */
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