xpcom/sample/program/nsTestSample.cpp
author Daniel Holbert <dholbert@cs.stanford.edu>
Wed, 01 Oct 2008 23:49:45 -0700
changeset 20072 d47a01a87c6c07e894685d7994d901d351afaea0
parent 1 9b2a99adc05e53cd4010de512f50118594756650
child 46997 1e41bf320ea0cd5fa6a03892b87d59278ee8754c
permissions -rw-r--r--
Bug 458167 - (comments-only changes) Grammar Nazi Vol1: s/it's/its/ for the posessive version of the word, and a few other misc comment-typos, in these directories: accessible browser config profile rdf toolkit tools xpcom xpfe

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Suresh Duddi <dp@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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/**
 * A Test application that exercises the sample moudule. This is intented
 * to be a sample application for using xpcom standalone.
 */

#include <stdio.h>

#include "nsXPCOMGlue.h"
#include "nsXPCOM.h"
#include "nsCOMPtr.h"
#include "nsISample.h"
#include "nsIServiceManager.h"
#include "nsIComponentManager.h"
#include "nsIComponentRegistrar.h"

#define NS_SAMPLE_CONTRACTID "@mozilla.org/sample;1"

int
main(void)
{
    nsresult rv;

    XPCOMGlueStartup(nsnull);

    // Initialize XPCOM
    nsCOMPtr<nsIServiceManager> servMan;
    rv = NS_InitXPCOM2(getter_AddRefs(servMan), nsnull, nsnull);
    if (NS_FAILED(rv))
    {
        printf("ERROR: XPCOM intialization error [%x].\n", rv);
        return -1;
    }
    // register all components in our default component directory
    nsCOMPtr<nsIComponentRegistrar> registrar = do_QueryInterface(servMan);
    NS_ASSERTION(registrar, "Null nsIComponentRegistrar");
    registrar->AutoRegister(nsnull);
    
    nsCOMPtr<nsIComponentManager> manager = do_QueryInterface(registrar);
    NS_ASSERTION(registrar, "Null nsIComponentManager");
    
    // Create an instance of our component
    nsCOMPtr<nsISample> mysample;
    rv = manager->CreateInstanceByContractID(NS_SAMPLE_CONTRACTID,
                                             nsnull,
                                             NS_GET_IID(nsISample),
                                             getter_AddRefs(mysample));
    if (NS_FAILED(rv))
    {
        printf("ERROR: Cannot create instance of component " NS_SAMPLE_CONTRACTID " [%x].\n"
               "Debugging hint:\n"
               "\tsetenv NSPR_LOG_MODULES nsComponentManager:5\n"
               "\tsetenv NSPR_LOG_FILE xpcom.log\n"
               "\t./nsTestSample\n"
               "\t<check the contents for xpcom.log for possible cause of error>.\n",
               rv);
        return -2;
    }

    // Call methods on our sample to test it out.
    rv = mysample->WriteValue("Inital print:");
    if (NS_FAILED(rv))
    {
        printf("ERROR: Calling nsISample::WriteValue() [%x]\n", rv);
        return -3;
    }

    const char *testValue = "XPCOM defies gravity";
    rv = mysample->SetValue(testValue);
    if (NS_FAILED(rv))
    {
        printf("ERROR: Calling nsISample::SetValue() [%x]\n", rv);
        return -3;
    }
    printf("Set value to: %s\n", testValue);
    char *str;
    rv = mysample->GetValue(&str);

    if (NS_FAILED(rv))
    {
        printf("ERROR: Calling nsISample::GetValue() [%x]\n", rv);
        return -3;
    }
    if (strcmp(str, testValue))
    {
        printf("Test FAILED.\n");
        return -4;
    }

    NS_Free(str);

    rv = mysample->WriteValue("Final print :");
    printf("Test passed.\n");
    
    // All nsCOMPtr's must be deleted prior to calling shutdown XPCOM
    // as we should not hold references passed XPCOM Shutdown.
    servMan = 0;
    registrar = 0;
    manager = 0;
    mysample = 0;
    
    // Shutdown XPCOM
    NS_ShutdownXPCOM(nsnull);

    XPCOMGlueShutdown();
    return 0;
}