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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*=============================================================
**
** Source: loadlibrarya.c
**
** Purpose: Positive test the LoadLibrary API by calling it multiple times.
** Call LoadLibrary to map a module into the calling
** process address space(DLL file)
**
**
**============================================================*/
#include <palsuite.h>
/* SHLEXT is defined only for Unix variants */
#if defined(SHLEXT)
#define ModuleName "librotor_pal"SHLEXT
#else
#define ModuleName "rotor_pal.dll"
#endif
int __cdecl main(int argc, char *argv[])
{
HMODULE ModuleHandle;
HMODULE ReturnHandle;
int err;
/* Initialize the PAL environment */
err = PAL_Initialize(argc, argv);
if(0 != err)
{
ExitProcess(FAIL);
}
/* load a module */
ModuleHandle = LoadLibrary(ModuleName);
if(!ModuleHandle)
{
Fail("Error[%u]:Failed to call LoadLibrary API!\n", GetLastError());
}
/* Call LoadLibrary again, should return same handle as returned for first time */
ReturnHandle = LoadLibrary(ModuleName);
if(!ReturnHandle)
{
Fail("Error[%u]:Failed to call LoadLibrary API second time!\n", GetLastError());
}
if(ModuleHandle != ReturnHandle)
{
Fail("Error[%u]:Failed to return the same handle while calling LoadLibrary API twice!\n", GetLastError());
}
Trace("Value of handle ModuleHandle[%x], ReturnHandle[%x]\n", ModuleHandle, ReturnHandle);
/* decrement the reference count of the loaded dll */
err = FreeLibrary(ModuleHandle);
if(0 == err)
{
Fail("Error[%u]:Failed to FreeLibrary API!\n", GetLastError());
}
/* Try Freeing a library again, should not fail */
err = FreeLibrary(ReturnHandle);
if(0 == err)
{
Fail("Error[%u][%d]: Was not successful in freeing a Library twice using FreeLibrary!\n", GetLastError(), err);
}
/* Try Freeing a library again, should fail */
err = FreeLibrary(ReturnHandle);
if(1 != err)
{
Fail("Error[%u][%d]: Was successful in freeing a Library thrice using FreeLibrary!\n", GetLastError(), err);
}
PAL_Terminate();
return PASS;
}
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