The Tor Browser: nsprpub/pr/tests/dlltest.c@7e26c7da4463

     1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     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/. */

     6 /***********************************************************************

     7 **

     8 ** Name: dlltest.c

     9 **

    10 ** Description: test dll functionality.

    11 **

    12 ** Modification History:

    13 ** 14-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.

    14 **	         The debug mode will print all of the printfs associated with this test.

    15 **			 The regress mode will be the default mode. Since the regress tool limits

    16 **           the output to a one line status:PASS or FAIL,all of the printf statements

    17 **			 have been handled with an if (debug_mode) statement.

    18 ** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to

    19 **			recognize the return code from tha main program.

    20 ** 12-June-97 Revert to return code 0 and 1.

    21 ***********************************************************************/

    23 /***********************************************************************

    24 ** Includes

    25 ***********************************************************************/

    26 #include "prinit.h"

    27 #include "prlink.h"

    28 #include "prmem.h"

    29 #include "prerror.h"

    31 #include "plstr.h"

    33 #include <stdio.h>

    34 #include <stdlib.h>

    36 typedef PRIntn (PR_CALLBACK *GetFcnType)(void);

    37 typedef void (PR_CALLBACK *SetFcnType)(PRIntn);

    39 PRIntn failed_already=0;

    40 PRIntn debug_mode;

    42 int main(int argc, char** argv)

    43 {

    44     PRLibrary *lib, *lib2;  /* two handles to the same library */

    45     GetFcnType getFcn;

    46     SetFcnType setFcn;

    47     PRIntn value;

    48     PRStatus status;

    49     char *libName;

    51     if (argc >= 2 && PL_strcmp(argv[1], "-d") == 0) {

    52         debug_mode = 1;

    53     }

    55     PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);

    56     PR_STDIO_INIT();

    58     /*

    59      * Test 1: load the library, look up the symbols, call the functions,

    60      * and check the results.

    61      */

    63     libName = PR_GetLibraryName("dll", "my");

    64     if (debug_mode) printf("Loading library %s\n", libName);

    65     lib = PR_LoadLibrary(libName);

    66     PR_FreeLibraryName(libName);

    67     if (lib == NULL) {

    68         PRInt32 textLength = PR_GetErrorTextLength();

    69         char *text = (char*)PR_MALLOC(textLength + 1);

    70         text[0] = '\0';

    71         (void)PR_GetErrorText(text);

    72         fprintf(

    73             stderr, "PR_LoadLibrary failed (%d, %d, %s)\n",

    74             PR_GetError(), PR_GetOSError(), text);

    75         if (!debug_mode) failed_already=1;

    76     }

    77     getFcn = (GetFcnType) PR_FindSymbol(lib, "My_GetValue");

    78     setFcn = (SetFcnType) PR_FindFunctionSymbol(lib, "My_SetValue");

    79     (*setFcn)(888);

    80     value = (*getFcn)();

    81     if (value != 888) {

    82         fprintf(stderr, "Test 1 failed: set value to 888, but got %d\n", value);

    83         if (!debug_mode) failed_already=1;

    84     }

    85     if (debug_mode) printf("Test 1 passed\n");

    87     /*

    88      * Test 2: get a second handle to the same library (this should increment

    89      * the reference count), look up the symbols, call the functions, and

    90      * check the results.

    91      */

    93     getFcn = (GetFcnType) PR_FindSymbolAndLibrary("My_GetValue", &lib2);

    94     if (NULL == getFcn || lib != lib2) {

    95         fprintf(stderr, "Test 2 failed: handles for the same library are not "

    96             "equal: handle 1: %p, handle 2: %p\n", lib, lib2);

    97         if (!debug_mode) failed_already=1;

    98     }

    99     setFcn = (SetFcnType) PR_FindSymbol(lib2, "My_SetValue");

   100     value = (*getFcn)();

   101     if (value != 888) {

   102         fprintf(stderr, "Test 2 failed: value should be 888, but got %d\n",

   103             value);

   104         if (!debug_mode) failed_already=1;

   105     }

   106     (*setFcn)(777);

   107     value = (*getFcn)();

   108     if (value != 777) {

   109         fprintf(stderr, "Test 2 failed: set value to 777, but got %d\n", value);

   110         if (!debug_mode) failed_already=1;

   111         goto exit_now;

   112     }

   113     if (debug_mode) printf("Test 2 passed\n");

   115     /*

   116      * Test 3: unload the library.  The library should still be accessible

   117      * via the second handle.  do the same things as above.

   118      */

   120     status = PR_UnloadLibrary(lib);

   121     if (PR_FAILURE == status) {

   122         fprintf(stderr, "Test 3 failed: cannot unload library: (%d, %d)\n",

   123             PR_GetError(), PR_GetOSError());

   124         if (!debug_mode) failed_already=1;

   125         goto exit_now;

   126     }

   127     getFcn = (GetFcnType) PR_FindFunctionSymbol(lib2, "My_GetValue");

   128     setFcn = (SetFcnType) PR_FindSymbol(lib2, "My_SetValue");

   129     (*setFcn)(666);

   130     value = (*getFcn)();

   131     if (value != 666) {

   132         fprintf(stderr, "Test 3 failed: set value to 666, but got %d\n", value);

   133         if (!debug_mode) failed_already=1;

   134         goto exit_now;

   135     }

   136     if (debug_mode) printf("Test 3 passed\n");

   138     /*

   139      * Test 4: unload the library, testing the reference count mechanism.

   140      */

   142     status = PR_UnloadLibrary(lib2);

   143     if (PR_FAILURE == status) {

   144         fprintf(stderr, "Test 4 failed: cannot unload library: (%d, %d)\n",

   145             PR_GetError(), PR_GetOSError());

   146         if (!debug_mode) failed_already=1;

   147         goto exit_now;

   148     }

   149     getFcn = (GetFcnType) PR_FindFunctionSymbolAndLibrary("My_GetValue", &lib2);

   150     if (NULL != getFcn) {

   151         fprintf(stderr, "Test 4 failed: how can we find a symbol "

   152             "in an already unloaded library?\n");

   153         if (!debug_mode) failed_already=1;

   154         goto exit_now;

   155     }

   156     if (debug_mode) {

   157         printf("Test 4 passed\n");

   158     }

   160     /*

   161     ** Test 5: LoadStaticLibrary()

   162     */

   163     {

   164         PRStaticLinkTable   slt[10];

   165         PRLibrary           *lib;

   167         lib = PR_LoadStaticLibrary( "my.dll", slt );

   168         if ( lib == NULL )

   169         {

   170             fprintf(stderr, "Test 5: LoadStatiLibrary() failed\n" );

   171             goto exit_now;

   172         }

   173         if (debug_mode)

   174         {

   175             printf("Test 5 passed\n");

   176         }

   177     }

   179     goto exit_now;

   180 exit_now:

   181     PR_Cleanup();

   183     if (failed_already) {

   184         printf("FAILED\n");

   185         return 1;

   186     } else {

   187         printf("PASSED\n");

   188         return 0;

   189     }

   190 }

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