static void PR_CALLBACK Server(void *arg)
{
PRStatus rv;
PRNetAddr serverAddress;
PRThread *me = PR_GetCurrentThread();
CSServer_t *server = (CSServer_t*)arg;
PRSocketOptionData sockOpt;
server->listener = PR_Socket(domain, SOCK_STREAM, protocol);
sockOpt.option = PR_SockOpt_Reuseaddr;
sockOpt.value.reuse_addr = PR_TRUE;
rv = PR_SetSocketOption(server->listener, &sockOpt);
TEST_ASSERT(PR_SUCCESS == rv);
memset(&serverAddress, 0, sizeof(serverAddress));
if (PR_AF_INET6 != domain)
rv = PR_InitializeNetAddr(PR_IpAddrAny, DEFAULT_PORT, &serverAddress);
else
rv = PR_SetNetAddr(PR_IpAddrAny, PR_AF_INET6, DEFAULT_PORT,
&serverAddress);
rv = PR_Bind(server->listener, &serverAddress);
TEST_ASSERT(PR_SUCCESS == rv);
rv = PR_Listen(server->listener, server->backlog);
TEST_ASSERT(PR_SUCCESS == rv);
server->started = PR_IntervalNow();
TimeOfDayMessage("Server started at", me);
PR_Lock(server->ml);
server->state = cs_run;
PR_NotifyCondVar(server->stateChange);
PR_Unlock(server->ml);
/*
** Create the first worker (actually, a thread that accepts
** connections and then processes the work load as needed).
** From this point on, additional worker threads are created
** as they are needed by existing worker threads.
*/
rv = CreateWorker(server, &server->pool);
TEST_ASSERT(PR_SUCCESS == rv);
/*
** From here on this thread is merely hanging around as the contact
** point for the main test driver. It's just waiting for the driver
** to declare the test complete.
*/
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\tServer(0x%p): waiting for state change\n", me));
PR_Lock(server->ml);
while ((cs_run == server->state) && !Aborted(rv))
{
rv = PR_WaitCondVar(server->stateChange, PR_INTERVAL_NO_TIMEOUT);
}
PR_Unlock(server->ml);
PR_ClearInterrupt();
TEST_LOG(
cltsrv_log_file, TEST_LOG_INFO,
("\tServer(0x%p): shutting down workers\n", me));
/*
** Get all the worker threads to exit. They know how to
** clean up after themselves, so this is just a matter of
** waiting for clorine in the pool to take effect. During
** this stage we're ignoring interrupts.
*/
server->workers.minimum = server->workers.maximum = 0;
PR_Lock(server->ml);
while (!PR_CLIST_IS_EMPTY(&server->list))
{
PRCList *head = PR_LIST_HEAD(&server->list);
CSWorker_t *worker = (CSWorker_t*)head;
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\tServer(0x%p): interrupting worker(0x%p)\n", me, worker));
rv = PR_Interrupt(worker->thread);
TEST_ASSERT(PR_SUCCESS == rv);
PR_REMOVE_AND_INIT_LINK(head);
}
while (server->pool.workers > 0)
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_NOTICE,
("\tServer(0x%p): waiting for %u workers to exit\n",
me, server->pool.workers));
(void)PR_WaitCondVar(server->pool.exiting, PR_INTERVAL_NO_TIMEOUT);
}
server->state = cs_exit;
PR_NotifyCondVar(server->stateChange);
PR_Unlock(server->ml);
TEST_LOG(
cltsrv_log_file, TEST_LOG_ALWAYS,
("\tServer(0x%p): stopped after %u operations and %u bytes\n",
me, server->operations, server->bytesTransferred));
if (NULL != server->listener) PR_Close(server->listener);
server->stopped = PR_IntervalNow();
} /* Server */
static void PR_CALLBACK Worker(void *arg)
{
PRStatus rv;
PRNetAddr from;
PRFileDesc *fd = NULL;
PRThread *me = PR_GetCurrentThread();
CSWorker_t *worker = (CSWorker_t*)arg;
CSServer_t *server = worker->server;
CSPool_t *pool = &server->pool;
TEST_LOG(
cltsrv_log_file, TEST_LOG_NOTICE,
("\t\tWorker(0x%p): started [%u]\n", me, pool->workers + 1));
PR_Lock(server->ml);
PR_APPEND_LINK(&worker->element, &server->list);
pool->workers += 1; /* define our existance */
while (cs_run == server->state)
{
while (pool->accepting >= server->workers.accepting)
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\t\tWorker(0x%p): waiting for accept slot[%d]\n",
me, pool->accepting));
rv = PR_WaitCondVar(pool->acceptComplete, PR_INTERVAL_NO_TIMEOUT);
if (Aborted(rv) || (cs_run != server->state))
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_NOTICE,
("\tWorker(0x%p): has been %s\n",
me, (Aborted(rv) ? "interrupted" : "stopped")));
goto exit;
}
}
pool->accepting += 1; /* how many are really in accept */
PR_Unlock(server->ml);
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\t\tWorker(0x%p): calling accept\n", me));
fd = PR_Accept(server->listener, &from, PR_INTERVAL_NO_TIMEOUT);
PR_Lock(server->ml);
pool->accepting -= 1;
PR_NotifyCondVar(pool->acceptComplete);
if ((NULL == fd) && Aborted(PR_FAILURE))
{
if (NULL != server->listener)
{
PR_Close(server->listener);
server->listener = NULL;
}
goto exit;
}
if (NULL != fd)
{
/*
** Create another worker of the total number of workers is
** less than the minimum specified or we have none left in
** accept() AND we're not over the maximum.
** This sort of presumes that the number allowed in accept
** is at least as many as the minimum. Otherwise we'll keep
** creating new threads and deleting them soon after.
*/
PRBool another =
((pool->workers < server->workers.minimum) ||
((0 == pool->accepting)
&& (pool->workers < server->workers.maximum))) ?
PR_TRUE : PR_FALSE;
pool->active += 1;
PR_Unlock(server->ml);
if (another) (void)CreateWorker(server, pool);
rv = ProcessRequest(fd, server);
if (PR_SUCCESS != rv)
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\t\tWorker(0x%p): server process ended abnormally\n", me));
(void)PR_Close(fd); fd = NULL;
PR_Lock(server->ml);
pool->active -= 1;
}
}
exit:
PR_ClearInterrupt();
PR_Unlock(server->ml);
if (NULL != fd)
{
(void)PR_Shutdown(fd, PR_SHUTDOWN_BOTH);
(void)PR_Close(fd);
}
TEST_LOG(
cltsrv_log_file, TEST_LOG_NOTICE,
("\t\tWorker(0x%p): exiting [%u]\n", PR_GetCurrentThread(), pool->workers));
PR_Lock(server->ml);
pool->workers -= 1; /* undefine our existance */
PR_REMOVE_AND_INIT_LINK(&worker->element);
PR_NotifyCondVar(pool->exiting);
PR_Unlock(server->ml);
PR_DELETE(worker); /* destruction of the "worker" object */
} /* Worker */
static PRStatus ProcessRequest(PRFileDesc *fd, CSServer_t *server)
{
PRStatus drv, rv;
char buffer[1024];
PRFileDesc *file = NULL;
PRThread * me = PR_GetCurrentThread();
PRInt32 bytes, descbytes, netbytes, filebytes = 0;
CSDescriptor_t *descriptor = PR_NEW(CSDescriptor_t);
PRIntervalTime timeout = PR_MillisecondsToInterval(DEFAULT_SERVER_TIMEOUT);
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\tProcessRequest(0x%p): receiving desciptor\n", me));
bytes = PR_Recv(
fd, descriptor, sizeof(*descriptor), RECV_FLAGS, timeout);
if (-1 == bytes)
{
rv = PR_FAILURE;
if (Aborted(rv)) goto exit;
if (PR_IO_TIMEOUT_ERROR == PR_GetError())
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\tProcessRequest(0x%p): receive timeout\n", me));
}
goto exit;
}
if (0 == bytes)
{
rv = PR_FAILURE;
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\tProcessRequest(0x%p): unexpected end of file\n", me));
goto exit;
}
descbytes = PR_ntohl(descriptor->size);
TEST_ASSERT(sizeof(*descriptor) == bytes);
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\t\tProcessRequest(0x%p): read descriptor {%d, %s}\n",
me, descbytes, descriptor->filename));
file = PR_Open(
descriptor->filename, (PR_CREATE_FILE | PR_WRONLY), 0666);
if (NULL == file)
{
rv = PR_FAILURE;
if (Aborted(rv)) goto aborted;
if (PR_IO_TIMEOUT_ERROR == PR_GetError())
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\tProcessRequest(0x%p): open file timeout\n", me));
goto aborted;
}
}
TEST_ASSERT(NULL != file);
filebytes = 0;
while (filebytes < descbytes)
{
netbytes = sizeof(buffer);
if ((descbytes - filebytes) < netbytes)
netbytes = descbytes - filebytes;
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\tProcessRequest(0x%p): receive %d bytes\n", me, netbytes));
bytes = PR_Recv(fd, buffer, netbytes, RECV_FLAGS, timeout);
if (-1 == bytes)
{
rv = PR_FAILURE;
if (Aborted(rv)) goto aborted;
if (PR_IO_TIMEOUT_ERROR == PR_GetError())
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\t\tProcessRequest(0x%p): receive data timeout\n", me));
goto aborted;
}
/*
* XXX: I got (PR_CONNECT_RESET_ERROR, ERROR_NETNAME_DELETED)
* on NT here. This is equivalent to ECONNRESET on Unix.
* -wtc
*/
TEST_LOG(
cltsrv_log_file, TEST_LOG_WARNING,
("\t\tProcessRequest(0x%p): unexpected error (%d, %d)\n",
me, PR_GetError(), PR_GetOSError()));
goto aborted;
}
if(0 == bytes)
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_WARNING,
("\t\tProcessRequest(0x%p): unexpected end of stream\n", me));
rv = PR_FAILURE;
goto aborted;
}
filebytes += bytes;
netbytes = bytes;
/* The byte count for PR_Write should be positive */
MY_ASSERT(netbytes > 0);
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\tProcessRequest(0x%p): write %d bytes to file\n", me, netbytes));
bytes = PR_Write(file, buffer, netbytes);
if (netbytes != bytes)
{
rv = PR_FAILURE;
if (Aborted(rv)) goto aborted;
if (PR_IO_TIMEOUT_ERROR == PR_GetError())
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\t\tProcessRequest(0x%p): write file timeout\n", me));
goto aborted;
}
}
TEST_ASSERT(bytes > 0);
}
PR_Lock(server->ml);
server->operations += 1;
server->bytesTransferred += filebytes;
PR_Unlock(server->ml);
rv = PR_Close(file);
if (Aborted(rv)) goto aborted;
TEST_ASSERT(PR_SUCCESS == rv);
file = NULL;
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\t\tProcessRequest(0x%p): opening %s\n", me, descriptor->filename));
file = PR_Open(descriptor->filename, PR_RDONLY, 0);
if (NULL == file)
{
rv = PR_FAILURE;
if (Aborted(rv)) goto aborted;
if (PR_IO_TIMEOUT_ERROR == PR_GetError())
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\t\tProcessRequest(0x%p): open file timeout\n",
PR_GetCurrentThread()));
goto aborted;
}
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\t\tProcessRequest(0x%p): other file open error (%u, %u)\n",
me, PR_GetError(), PR_GetOSError()));
goto aborted;
}
TEST_ASSERT(NULL != file);
netbytes = 0;
while (netbytes < descbytes)
{
filebytes = sizeof(buffer);
if ((descbytes - netbytes) < filebytes)
filebytes = descbytes - netbytes;
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\tProcessRequest(0x%p): read %d bytes from file\n", me, filebytes));
bytes = PR_Read(file, buffer, filebytes);
if (filebytes != bytes)
{
rv = PR_FAILURE;
if (Aborted(rv)) goto aborted;
if (PR_IO_TIMEOUT_ERROR == PR_GetError())
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\t\tProcessRequest(0x%p): read file timeout\n", me));
else
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\t\tProcessRequest(0x%p): other file error (%d, %d)\n",
me, PR_GetError(), PR_GetOSError()));
goto aborted;
}
TEST_ASSERT(bytes > 0);
netbytes += bytes;
filebytes = bytes;
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\t\tProcessRequest(0x%p): sending %d bytes\n", me, filebytes));
bytes = PR_Send(fd, buffer, filebytes, SEND_FLAGS, timeout);
if (filebytes != bytes)
{
rv = PR_FAILURE;
if (Aborted(rv)) goto aborted;
if (PR_IO_TIMEOUT_ERROR == PR_GetError())
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\t\tProcessRequest(0x%p): send data timeout\n", me));
goto aborted;
}
break;
}
TEST_ASSERT(bytes > 0);
}
PR_Lock(server->ml);
server->bytesTransferred += filebytes;
PR_Unlock(server->ml);
rv = PR_Shutdown(fd, PR_SHUTDOWN_BOTH);
if (Aborted(rv)) goto aborted;
rv = PR_Close(file);
if (Aborted(rv)) goto aborted;
TEST_ASSERT(PR_SUCCESS == rv);
file = NULL;
aborted:
PR_ClearInterrupt();
if (NULL != file) PR_Close(file);
drv = PR_Delete(descriptor->filename);
TEST_ASSERT(PR_SUCCESS == drv);
exit:
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\t\tProcessRequest(0x%p): Finished\n", me));
PR_DELETE(descriptor);
#if defined(WIN95)
PR_Sleep(PR_MillisecondsToInterval(200)); /* lth. see note [1] */
#endif
return rv;
} /* ProcessRequest */
static void PR_CALLBACK Client(void *arg)
{
PRStatus rv;
PRIntn index;
char buffer[1024];
PRFileDesc *fd = NULL;
PRUintn clipping = DEFAULT_CLIPPING;
PRThread *me = PR_GetCurrentThread();
CSClient_t *client = (CSClient_t*)arg;
CSDescriptor_t *descriptor = PR_NEW(CSDescriptor_t);
PRIntervalTime timeout = PR_MillisecondsToInterval(DEFAULT_CLIENT_TIMEOUT);
for (index = 0; index < sizeof(buffer); ++index)
buffer[index] = (char)index;
client->started = PR_IntervalNow();
PR_Lock(client->ml);
client->state = cs_run;
PR_NotifyCondVar(client->stateChange);
PR_Unlock(client->ml);
TimeOfDayMessage("Client started at", me);
while (cs_run == client->state)
{
PRInt32 bytes, descbytes, filebytes, netbytes;
(void)PR_NetAddrToString(&client->serverAddress, buffer, sizeof(buffer));
TEST_LOG(cltsrv_log_file, TEST_LOG_INFO,
("\tClient(0x%p): connecting to server at %s\n", me, buffer));
fd = PR_Socket(domain, SOCK_STREAM, protocol);
TEST_ASSERT(NULL != fd);
rv = PR_Connect(fd, &client->serverAddress, timeout);
if (PR_FAILURE == rv)
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\tClient(0x%p): conection failed (%d, %d)\n",
me, PR_GetError(), PR_GetOSError()));
goto aborted;
}
memset(descriptor, 0, sizeof(*descriptor));
descriptor->size = PR_htonl(descbytes = rand() % clipping);
PR_snprintf(
descriptor->filename, sizeof(descriptor->filename),
"CS%p%p-%p.dat", client->started, me, client->operations);
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\tClient(0x%p): sending descriptor for %u bytes\n", me, descbytes));
bytes = PR_Send(
fd, descriptor, sizeof(*descriptor), SEND_FLAGS, timeout);
if (sizeof(CSDescriptor_t) != bytes)
{
if (Aborted(PR_FAILURE)) goto aborted;
if (PR_IO_TIMEOUT_ERROR == PR_GetError())
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\tClient(0x%p): send descriptor timeout\n", me));
goto retry;
}
}
TEST_ASSERT(sizeof(*descriptor) == bytes);
netbytes = 0;
while (netbytes < descbytes)
{
filebytes = sizeof(buffer);
if ((descbytes - netbytes) < filebytes)
filebytes = descbytes - netbytes;
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\tClient(0x%p): sending %d bytes\n", me, filebytes));
bytes = PR_Send(fd, buffer, filebytes, SEND_FLAGS, timeout);
if (filebytes != bytes)
{
if (Aborted(PR_FAILURE)) goto aborted;
if (PR_IO_TIMEOUT_ERROR == PR_GetError())
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\tClient(0x%p): send data timeout\n", me));
goto retry;
}
}
TEST_ASSERT(bytes == filebytes);
netbytes += bytes;
}
filebytes = 0;
while (filebytes < descbytes)
{
netbytes = sizeof(buffer);
if ((descbytes - filebytes) < netbytes)
netbytes = descbytes - filebytes;
TEST_LOG(
cltsrv_log_file, TEST_LOG_VERBOSE,
("\tClient(0x%p): receiving %d bytes\n", me, netbytes));
bytes = PR_Recv(fd, buffer, netbytes, RECV_FLAGS, timeout);
if (-1 == bytes)
{
if (Aborted(PR_FAILURE))
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\tClient(0x%p): receive data aborted\n", me));
goto aborted;
}
else if (PR_IO_TIMEOUT_ERROR == PR_GetError())
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\tClient(0x%p): receive data timeout\n", me));
else
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\tClient(0x%p): receive error (%d, %d)\n",
me, PR_GetError(), PR_GetOSError()));
goto retry;
}
if (0 == bytes)
{
TEST_LOG(
cltsrv_log_file, TEST_LOG_ERROR,
("\t\tClient(0x%p): unexpected end of stream\n",
PR_GetCurrentThread()));
break;
}
filebytes += bytes;
}
rv = PR_Shutdown(fd, PR_SHUTDOWN_BOTH);
if (Aborted(rv)) goto aborted;
TEST_ASSERT(PR_SUCCESS == rv);
retry:
(void)PR_Close(fd); fd = NULL;
TEST_LOG(
cltsrv_log_file, TEST_LOG_INFO,
("\tClient(0x%p): disconnected from server\n", me));
PR_Lock(client->ml);
client->operations += 1;
client->bytesTransferred += 2 * descbytes;
rv = PR_WaitCondVar(client->stateChange, rand() % clipping);
PR_Unlock(client->ml);
if (Aborted(rv)) break;
}
aborted:
client->stopped = PR_IntervalNow();
PR_ClearInterrupt();
if (NULL != fd) rv = PR_Close(fd);
PR_Lock(client->ml);
client->state = cs_exit;
PR_NotifyCondVar(client->stateChange);
PR_Unlock(client->ml);
PR_DELETE(descriptor);
TEST_LOG(
cltsrv_log_file, TEST_LOG_ALWAYS,
("\tClient(0x%p): stopped after %u operations and %u bytes\n",
PR_GetCurrentThread(), client->operations, client->bytesTransferred));
} /* Client */
void RCThread::ClearInterrupt() { PR_ClearInterrupt(); }
void
BackgroundHangManager::RunMonitorThread()
{
// Keep us locked except when waiting
MonitorAutoLock autoLock(mLock);
/* mIntervalNow is updated at various intervals determined by waitTime.
However, if an update latency is too long (due to CPU scheduling, system
sleep, etc.), we don't update mIntervalNow at all. This is done so that
long latencies in our timing are not detected as hangs. systemTime is
used to track PR_IntervalNow() and determine our latency. */
PRIntervalTime systemTime = PR_IntervalNow();
// Default values for the first iteration of thread loop
PRIntervalTime waitTime = PR_INTERVAL_NO_WAIT;
PRIntervalTime recheckTimeout = PR_INTERVAL_NO_WAIT;
while (!mShutdown) {
PR_ClearInterrupt();
nsresult rv = autoLock.Wait(waitTime);
PRIntervalTime newTime = PR_IntervalNow();
PRIntervalTime systemInterval = newTime - systemTime;
systemTime = newTime;
/* waitTime is a quarter of the shortest timeout value; If our timing
latency is low enough (less than half the shortest timeout value),
we can update mIntervalNow. */
if (MOZ_LIKELY(waitTime != PR_INTERVAL_NO_TIMEOUT &&
systemInterval < 2 * waitTime)) {
mIntervalNow += systemInterval;
}
/* If it's before the next recheck timeout, and our wait did not
get interrupted (either through Notify or PR_Interrupt), we can
keep the current waitTime and skip iterating through hang monitors. */
if (MOZ_LIKELY(systemInterval < recheckTimeout &&
systemInterval >= waitTime &&
rv == NS_OK)) {
recheckTimeout -= systemInterval;
continue;
}
/* We are in one of the following scenarios,
- Hang or permahang recheck timeout
- Thread added/removed
- Thread wait or hang ended
In all cases, we want to go through our list of hang
monitors and update waitTime and recheckTimeout. */
waitTime = PR_INTERVAL_NO_TIMEOUT;
recheckTimeout = PR_INTERVAL_NO_TIMEOUT;
// Locally hold mIntervalNow
PRIntervalTime intervalNow = mIntervalNow;
// iterate through hang monitors
for (BackgroundHangThread* currentThread = mHangThreads.getFirst();
currentThread; currentThread = currentThread->getNext()) {
if (currentThread->mWaiting) {
// Thread is waiting, not hanging
continue;
}
PRIntervalTime interval = currentThread->mInterval;
PRIntervalTime hangTime = intervalNow - interval;
if (MOZ_UNLIKELY(hangTime >= currentThread->mMaxTimeout)) {
// A permahang started
// Skip subsequent iterations and tolerate a race on mWaiting here
currentThread->mWaiting = true;
currentThread->ReportPermaHang();
continue;
}
if (MOZ_LIKELY(!currentThread->mHanging)) {
if (MOZ_UNLIKELY(hangTime >= currentThread->mTimeout)) {
// A hang started
currentThread->mStackHelper.GetStack(currentThread->mHangStack);
currentThread->mHangStart = interval;
currentThread->mHanging = true;
}
} else {
if (MOZ_LIKELY(interval != currentThread->mHangStart)) {
// A hang ended
currentThread->ReportHang(intervalNow - currentThread->mHangStart);
currentThread->mHanging = false;
}
}
/* If we are hanging, the next time we check for hang status is when
the hang turns into a permahang. If we're not hanging, the next
recheck timeout is when we may be entering a hang. */
PRIntervalTime nextRecheck;
if (currentThread->mHanging) {
nextRecheck = currentThread->mMaxTimeout;
} else {
nextRecheck = currentThread->mTimeout;
}
recheckTimeout = std::min(recheckTimeout, nextRecheck - hangTime);
/* We wait for a quarter of the shortest timeout
value to give mIntervalNow enough granularity. */
waitTime = std::min(waitTime, currentThread->mTimeout / 4);
}
}
/* We are shutting down now.
Wait for all outstanding monitors to unregister. */
while (!mHangThreads.isEmpty()) {
autoLock.Wait(PR_INTERVAL_NO_TIMEOUT);
}
}
