The Tor Browser: xpcom/sample/program/nsTestSample.cpp@925c144e1f1f

     1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 /**

     8  * A Test application that exercises the sample moudule. This is intented

     9  * to be a sample application for using xpcom standalone.

    10  */

    12 #include <stdio.h>

    14 #include "nsXPCOMGlue.h"

    15 #include "nsXPCOM.h"

    16 #include "nsCOMPtr.h"

    17 #include "nsISample.h"

    18 #include "nsIServiceManager.h"

    19 #include "nsIComponentManager.h"

    20 #include "nsIComponentRegistrar.h"

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

    24 int

    25 main(void)

    26 {

    27     nsresult rv;

    29     XPCOMGlueStartup(nullptr);

    31     // Initialize XPCOM

    32     nsCOMPtr<nsIServiceManager> servMan;

    33     rv = NS_InitXPCOM2(getter_AddRefs(servMan), nullptr, nullptr);

    34     if (NS_FAILED(rv))

    35     {

    36         printf("ERROR: XPCOM intialization error [%x].\n",

    37                static_cast<uint32_t>(rv));

    38         return -1;

    39     }

    41     nsCOMPtr<nsIComponentManager> manager = do_QueryInterface(servMan);

    43     // Create an instance of our component

    44     nsCOMPtr<nsISample> mysample;

    45     rv = manager->CreateInstanceByContractID(NS_SAMPLE_CONTRACTID,

    46                                              nullptr,

    47                                              NS_GET_IID(nsISample),

    48                                              getter_AddRefs(mysample));

    49     if (NS_FAILED(rv))

    50     {

    51         printf("ERROR: Cannot create instance of component " NS_SAMPLE_CONTRACTID " [%x].\n"

    52                "Debugging hint:\n"

    53                "\tsetenv NSPR_LOG_MODULES nsComponentManager:5\n"

    54                "\tsetenv NSPR_LOG_FILE xpcom.log\n"

    55                "\t./nsTestSample\n"

    56                "\t<check the contents for xpcom.log for possible cause of error>.\n",

    57                static_cast<uint32_t>(rv));

    58         return -2;

    59     }

    61     // Call methods on our sample to test it out.

    62     rv = mysample->WriteValue("Inital print:");

    63     if (NS_FAILED(rv))

    64     {

    65         printf("ERROR: Calling nsISample::WriteValue() [%x]\n",

    66                static_cast<uint32_t>(rv));

    67         return -3;

    68     }

    70     const char *testValue = "XPCOM defies gravity";

    71     rv = mysample->SetValue(testValue);

    72     if (NS_FAILED(rv))

    73     {

    74         printf("ERROR: Calling nsISample::SetValue() [%x]\n",

    75                static_cast<uint32_t>(rv));

    76         return -3;

    77     }

    78     printf("Set value to: %s\n", testValue);

    79     char *str;

    80     rv = mysample->GetValue(&str);

    82     if (NS_FAILED(rv))

    83     {

    84         printf("ERROR: Calling nsISample::GetValue() [%x]\n",

    85                static_cast<uint32_t>(rv));

    86         return -3;

    87     }

    88     if (strcmp(str, testValue))

    89     {

    90         printf("Test FAILED.\n");

    91         return -4;

    92     }

    94     NS_Free(str);

    96     rv = mysample->WriteValue("Final print :");

    97     printf("Test passed.\n");

    99     // All nsCOMPtr's must be deleted prior to calling shutdown XPCOM

   100     // as we should not hold references passed XPCOM Shutdown.

   101     servMan = 0;

   102     manager = 0;

   103     mysample = 0;

   105     // Shutdown XPCOM

   106     NS_ShutdownXPCOM(nullptr);

   108     return 0;

   109 }

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