/*
    Copyright 2005-2015 Intel Corporation.  All Rights Reserved.

    This file is part of Threading Building Blocks. Threading Building Blocks is free software;
    you can redistribute it and/or modify it under the terms of the GNU General Public License
    version 2  as  published  by  the  Free Software Foundation.  Threading Building Blocks is
    distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
    implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    See  the GNU General Public License for more details.   You should have received a copy of
    the  GNU General Public License along with Threading Building Blocks; if not, write to the
    Free Software Foundation, Inc.,  51 Franklin St,  Fifth Floor,  Boston,  MA 02110-1301 USA

    As a special exception,  you may use this file  as part of a free software library without
    restriction.  Specifically,  if other files instantiate templates  or use macros or inline
    functions from this file, or you compile this file and link it with other files to produce
    an executable,  this file does not by itself cause the resulting executable to be covered
    by the GNU General Public License. This exception does not however invalidate any other
    reasons why the executable file might be covered by the GNU General Public License.
*/

#include "tbb/tbb_config.h"

// Include this header file before harness.h for HARNESS_SKIP_TEST to take effect
#if !__TBB_DYNAMIC_LOAD_ENABLED
#define HARNESS_SKIP_TEST 1
#else

#if _WIN32 || _WIN64
#include "tbb/machine/windows_api.h"
#else
#include <dlfcn.h>
#endif
#include "harness_assert.h"

namespace Harness {

#if TBB_USE_DEBUG
#define SUFFIX1 "_debug"
#define SUFFIX2
#else
#define SUFFIX1
#define SUFFIX2 "_debug"
#endif /* TBB_USE_DEBUG */

#if _WIN32||_WIN64
#define PREFIX
#define EXT ".dll"
#else
#define PREFIX "lib"
#if __APPLE__
#define EXT ".dylib"
// Android SDK build system does not support .so file name versioning
#elif __FreeBSD__ || __NetBSD__ || __sun || _AIX || __ANDROID__
#define EXT ".so"
#elif __linux__  // Order of these elif's matters!
#define EXT __TBB_STRING(.so.TBB_COMPATIBLE_INTERFACE_VERSION)
#else
#error Unknown OS
#endif
#endif

// Form the names of the TBB memory allocator binaries.
#define MALLOCLIB_NAME1 PREFIX "tbbmalloc" SUFFIX1 EXT
#define MALLOCLIB_NAME2 PREFIX "tbbmalloc" SUFFIX2 EXT

#if _WIN32 || _WIN64
typedef  HMODULE LIBRARY_HANDLE;
#else
typedef void *LIBRARY_HANDLE;
#endif

#if _WIN32 || _WIN64
#define TEST_LIBRARY_NAME(base) base".dll"
#elif __APPLE__
#define TEST_LIBRARY_NAME(base) base".dylib"
#else
#define TEST_LIBRARY_NAME(base) base".so"
#endif

LIBRARY_HANDLE OpenLibrary(const char *name)
{
#if _WIN32 || _WIN64
#if __TBB_WIN8UI_SUPPORT	
    TCHAR wlibrary[MAX_PATH];
    if ( MultiByteToWideChar(CP_UTF8, 0, name, -1, wlibrary, MAX_PATH) == 0 ) return false;
    return :: LoadPackagedLibrary( wlibrary, 0 );
#else
    return ::LoadLibrary(name);
#endif
#else
    return dlopen(name, RTLD_NOW|RTLD_GLOBAL);
#endif
}

void CloseLibrary(LIBRARY_HANDLE lib)
{
#if _WIN32 || _WIN64
    BOOL ret = FreeLibrary(lib);
    ASSERT(ret, "FreeLibrary must be successful");
#else
    int ret = dlclose(lib);
    ASSERT(ret == 0, "dlclose must be successful");
#endif
}

typedef void (*FunctionAddress)();

FunctionAddress GetAddress(Harness::LIBRARY_HANDLE lib, const char *name)
{
    union { FunctionAddress func; void *symb; } converter;
#if _WIN32 || _WIN64
    converter.symb = (void*)GetProcAddress(lib, name);
#else
    converter.symb = (void*)dlsym(lib, name);
#endif
    ASSERT(converter.func, "Can't find required symbol in dynamic library");
    return converter.func;
}

}  // namespace Harness

#endif // __TBB_DYNAMIC_LOAD_ENABLED
