gecko-dev/xpcom/tests/TestServMgr.cpp
1999-03-09 09:44:27 +00:00

222 lines
6.3 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "MyService.h"
#include "nsIServiceManager.h"
#include "nsIComponentManager.h"
#include <stdio.h>
static NS_DEFINE_IID(kIMyServiceCID, NS_IMYSERVICE_CID);
static NS_DEFINE_IID(kIMyServiceIID, NS_IMYSERVICE_IID);
////////////////////////////////////////////////////////////////////////////////
IMyService* myServ = NULL;
nsresult
BeginTest(int testNumber, nsIShutdownListener* listener)
{
nsresult err;
NS_ASSERTION(myServ == NULL, "myServ not reset");
err = nsServiceManager::GetService(kIMyServiceCID, kIMyServiceIID,
(nsISupports**)&myServ, listener);
return err;
}
nsresult
EndTest(int testNumber, nsIShutdownListener* listener)
{
nsresult err = NS_OK;
if (myServ) {
err = myServ->Doit();
if (err != NS_OK) return err;
err = nsServiceManager::ReleaseService(kIMyServiceCID, myServ, listener);
if (err != NS_OK) return err;
myServ = NULL;
}
printf("test %d succeeded\n", testNumber);
return NS_OK;
}
nsresult
SimpleTest(int testNumber)
{
// This test just gets a service, uses it and releases it.
nsresult err;
err = BeginTest(testNumber, NULL);
if (err != NS_OK) return err;
err = EndTest(testNumber, NULL);
return err;
}
////////////////////////////////////////////////////////////////////////////////
class HandleMyServiceShutdown : public nsIShutdownListener {
public:
NS_IMETHOD OnShutdown(const nsCID& cid, nsISupports* service);
HandleMyServiceShutdown(void) { NS_INIT_REFCNT(); }
virtual ~HandleMyServiceShutdown(void) {}
NS_DECL_ISUPPORTS
};
static NS_DEFINE_IID(kIShutdownListenerIID, NS_ISHUTDOWNLISTENER_IID);
NS_IMPL_ISUPPORTS(HandleMyServiceShutdown, kIShutdownListenerIID);
nsresult
HandleMyServiceShutdown::OnShutdown(const nsCID& cid, nsISupports* service)
{
if (cid.Equals(kIMyServiceCID)) {
NS_ASSERTION(service == myServ, "wrong service!");
nsrefcnt cnt = myServ->Release();
myServ = NULL;
}
return NS_OK;
}
nsresult
AsyncShutdown(int testNumber)
{
nsresult err;
// If the AsyncShutdown was truly asynchronous and happened on another
// thread, we'd have to protect all accesses to myServ throughout this
// code with a monitor.
err = nsServiceManager::UnregisterService(kIMyServiceCID);
if (err == NS_ERROR_SERVICE_IN_USE) {
printf("async shutdown -- service still in use\n");
return NS_OK;
}
if (err == NS_ERROR_SERVICE_NOT_FOUND) {
printf("async shutdown -- service not found\n");
return NS_OK;
}
return err;
}
nsresult
AsyncShutdownTest(int testNumber)
{
// This test gets a service, but then gets an async request for
// shutdown before it gets a chance to use it. This causes the myServ
// variable to become NULL and EndTest to do nothing. The async request
// will actually unload the DLL in this test.
nsresult err;
HandleMyServiceShutdown* listener = new HandleMyServiceShutdown();
listener->AddRef();
err = BeginTest(testNumber, listener);
if (err != NS_OK) return err;
err = AsyncShutdown(testNumber);
if (err != NS_OK) return err;
err = EndTest(testNumber, listener);
nsrefcnt cnt = listener->Release();
NS_ASSERTION(cnt == 0, "failed to release listener");
return err;
}
nsresult
AsyncNoShutdownTest(int testNumber)
{
// This test gets a service, and also gets an async request for shutdown,
// but the service doesn't get shut down because some other client (who's
// not participating in the async shutdown game as he should) is
// continuing to hang onto the service. This causes myServ variable to
// get set to NULL, but the service doesn't get unloaded right away as
// it should.
nsresult err;
HandleMyServiceShutdown* listener = new HandleMyServiceShutdown();
listener->AddRef();
err = BeginTest(testNumber, listener);
if (err != NS_OK) return err;
// Create some other user of kIMyServiceCID, preventing it from
// really going away:
IMyService* otherClient;
err = nsServiceManager::GetService(kIMyServiceCID, kIMyServiceIID,
(nsISupports**)&otherClient);
if (err != NS_OK) return err;
err = AsyncShutdown(testNumber);
if (err != NS_OK) return err;
err = EndTest(testNumber, listener);
// Finally, release the other client.
err = nsServiceManager::ReleaseService(kIMyServiceCID, otherClient);
if (err != NS_OK) return err;
nsrefcnt cnt = listener->Release();
NS_ASSERTION(cnt == 0, "failed to release listener");
return err;
}
////////////////////////////////////////////////////////////////////////////////
void
SetupFactories(void)
{
nsresult err;
// seed the repository (hack)
err = nsComponentManager::RegisterComponent(kIMyServiceCID, NULL, NULL, "MyService.dll",
PR_TRUE, PR_FALSE);
NS_ASSERTION(err == NS_OK, "failed to register my factory");
}
int
main(void)
{
nsresult err;
int testNumber = 0;
SetupFactories();
err = SimpleTest(++testNumber);
if (err != NS_OK)
goto error;
err = AsyncShutdownTest(++testNumber);
if (err != NS_OK)
goto error;
err = AsyncNoShutdownTest(++testNumber);
if (err != NS_OK)
goto error;
AsyncShutdown(++testNumber);
printf("there was great success\n");
return 0;
error:
printf("test %d failed\n", testNumber);
return -1;
}
////////////////////////////////////////////////////////////////////////////////