tor-browser

dlltest.c (5922B)

---

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/***********************************************************************
**
** Name: dlltest.c
**
** Description: test dll functionality.
**
** Modification History:
** 14-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
**           The debug mode will print all of the printfs associated with this
*test.
**           The regress mode will be the default mode. Since the regress tool
*limits
**           the output to a one line status:PASS or FAIL,all of the printf
*statements
**           have been handled with an if (debug_mode) statement.
** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been
*updated to
**          recognize the return code from tha main program.
** 12-June-97 Revert to return code 0 and 1.
***********************************************************************/

/***********************************************************************
** Includes
***********************************************************************/
#include "prinit.h"
#include "prlink.h"
#include "prmem.h"
#include "prerror.h"

#include "plstr.h"

#include <stdio.h>
#include <stdlib.h>

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

PRIntn failed_already = 0;
PRIntn debug_mode;

int main(int argc, char** argv) {
 PRLibrary *lib, *lib2; /* two handles to the same library */
 GetFcnType getFcn;
 SetFcnType setFcn;
 PRIntn value;
 PRStatus status;
 char* libName;

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

 PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);

 /*
  * Test 1: load the library, look up the symbols, call the functions,
  * and check the results.
  */

 libName = PR_GetLibraryName("dll", "my");
 if (debug_mode) {
   printf("Loading library %s\n", libName);
 }
 lib = PR_LoadLibrary(libName);
 PR_FreeLibraryName(libName);
 if (lib == NULL) {
   PRInt32 textLength = PR_GetErrorTextLength();
   char* text = (char*)PR_MALLOC(textLength + 1);
   text[0] = '\0';
   (void)PR_GetErrorText(text);
   fprintf(stderr, "PR_LoadLibrary failed (%d, %d, %s)\n", PR_GetError(),
           PR_GetOSError(), text);
   if (!debug_mode) {
     failed_already = 1;
   }
 }
 getFcn = (GetFcnType)PR_FindSymbol(lib, "My_GetValue");
 setFcn = (SetFcnType)PR_FindFunctionSymbol(lib, "My_SetValue");
 (*setFcn)(888);
 value = (*getFcn)();
 if (value != 888) {
   fprintf(stderr, "Test 1 failed: set value to 888, but got %d\n", value);
   if (!debug_mode) {
     failed_already = 1;
   }
 }
 if (debug_mode) {
   printf("Test 1 passed\n");
 }

 /*
  * Test 2: get a second handle to the same library (this should increment
  * the reference count), look up the symbols, call the functions, and
  * check the results.
  */

 getFcn = (GetFcnType)PR_FindSymbolAndLibrary("My_GetValue", &lib2);
 if (NULL == getFcn || lib != lib2) {
   fprintf(stderr,
           "Test 2 failed: handles for the same library are not "
           "equal: handle 1: %p, handle 2: %p\n",
           lib, lib2);
   if (!debug_mode) {
     failed_already = 1;
   }
 }
 setFcn = (SetFcnType)PR_FindSymbol(lib2, "My_SetValue");
 value = (*getFcn)();
 if (value != 888) {
   fprintf(stderr, "Test 2 failed: value should be 888, but got %d\n", value);
   if (!debug_mode) {
     failed_already = 1;
   }
 }
 (*setFcn)(777);
 value = (*getFcn)();
 if (value != 777) {
   fprintf(stderr, "Test 2 failed: set value to 777, but got %d\n", value);
   if (!debug_mode) {
     failed_already = 1;
   }
   goto exit_now;
 }
 if (debug_mode) {
   printf("Test 2 passed\n");
 }

 /*
  * Test 3: unload the library.  The library should still be accessible
  * via the second handle.  do the same things as above.
  */

 status = PR_UnloadLibrary(lib);
 if (PR_FAILURE == status) {
   fprintf(stderr, "Test 3 failed: cannot unload library: (%d, %d)\n",
           PR_GetError(), PR_GetOSError());
   if (!debug_mode) {
     failed_already = 1;
   }
   goto exit_now;
 }
 getFcn = (GetFcnType)PR_FindFunctionSymbol(lib2, "My_GetValue");
 setFcn = (SetFcnType)PR_FindSymbol(lib2, "My_SetValue");
 (*setFcn)(666);
 value = (*getFcn)();
 if (value != 666) {
   fprintf(stderr, "Test 3 failed: set value to 666, but got %d\n", value);
   if (!debug_mode) {
     failed_already = 1;
   }
   goto exit_now;
 }
 if (debug_mode) {
   printf("Test 3 passed\n");
 }

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

 status = PR_UnloadLibrary(lib2);
 if (PR_FAILURE == status) {
   fprintf(stderr, "Test 4 failed: cannot unload library: (%d, %d)\n",
           PR_GetError(), PR_GetOSError());
   if (!debug_mode) {
     failed_already = 1;
   }
   goto exit_now;
 }
 getFcn = (GetFcnType)PR_FindFunctionSymbolAndLibrary("My_GetValue", &lib2);
 if (NULL != getFcn) {
   fprintf(stderr,
           "Test 4 failed: how can we find a symbol "
           "in an already unloaded library?\n");
   if (!debug_mode) {
     failed_already = 1;
   }
   goto exit_now;
 }
 if (debug_mode) {
   printf("Test 4 passed\n");
 }

 /*
 ** Test 5: LoadStaticLibrary()
 */
 {
   PRStaticLinkTable slt[10];
   PRLibrary* lib;

   lib = PR_LoadStaticLibrary("my.dll", slt);
   if (lib == NULL) {
     fprintf(stderr, "Test 5: LoadStatiLibrary() failed\n");
     goto exit_now;
   }
   if (debug_mode) {
     printf("Test 5 passed\n");
   }
 }

 goto exit_now;
exit_now:
 PR_Cleanup();

 if (failed_already) {
   printf("FAILED\n");
   return 1;
 } else {
   printf("PASSED\n");
   return 0;
 }
}