/*
    Copyright 2005-2012 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.
*/

#if !(_WIN32||_WIN64)

#include "harness.h"

int TestMain () {
    return Harness::Skipped;
}

#else // !(_WIN32||_WIN64)

#define TBB_PREVIEW_RUNTIME_LOADER 1
#include "tbb/runtime_loader.h"
#include "tbb/tbb_stddef.h"
#include "tbb/task_scheduler_init.h"
#include "tbb/tbb_exception.h"

#include <cstdio>
#include <cstdlib>
#include <cerrno>

#if !TBB_USE_EXCEPTIONS && _MSC_VER
    // Suppress "C++ exception handler used, but unwind semantics are not enabled" warning in STL headers
    #pragma warning (push)
    #pragma warning (disable: 4530)
#endif

#include <vector>
#include <string>
#include <utility>
#include <typeinfo>

#if !TBB_USE_EXCEPTIONS && _MSC_VER
    #pragma warning (pop)
#endif

#ifdef HARNESS_USE_RUNTIME_LOADER
    #undef HARNESS_USE_RUNTIME_LOADER    // We do not want harness to preload tbb.
#endif
#include "harness.h"

static int errors = 0;

#define CHECK( cond ) {                                                  \
    if ( ! (cond) ) {                                                    \
        ++ errors;                                                       \
        REPORT( "%s:%d: --- TEST FAILED ---\n", __FILE__, __LINE__ );    \
    };                                                                   \
}

#define SAY( msg ) \
    REMARK( "%s:%d: %s\n", __FILE__, __LINE__, msg )

typedef int (*int_func_t)();

namespace tbb {
namespace interface6 {
namespace internal {
namespace runtime_loader {
    extern tbb::runtime_loader::error_mode stub_mode;
} } } } // namespaces runtime_loader, internal, interface6, tbb

using tbb::interface6::internal::runtime_loader::stub_mode;

#define _CHECK_TBB( code ) {                           \
    stub_mode = tbb::runtime_loader::em_status;        \
    int ver = tbb::TBB_runtime_interface_version();    \
    stub_mode = tbb::runtime_loader::em_abort;         \
    CHECK( ver == code );                              \
}

#define CHECK_TBB_IS_LOADED()                          \
    _CHECK_TBB( TBB_INTERFACE_VERSION )

#define CHECK_TBB_IS_NOT_LOADED()                      \
    _CHECK_TBB( tbb::runtime_loader::ec_no_lib )

int TestMain() {


    __TBB_TRY {

        {
            SAY( "Call a function when library is not yet loaded, stub should return a error." );
            CHECK_TBB_IS_NOT_LOADED();
        }

        {
            SAY( "Create a runtime_loader object, do not load library but make some bad calls." );
            tbb::runtime_loader rtl( tbb::runtime_loader::em_status );
            SAY( "After creating status should be ok." );
            CHECK( rtl.status() == tbb::runtime_loader::ec_ok );
            SAY( "Call a function, stub should return a error." );
            CHECK_TBB_IS_NOT_LOADED();
        }

        {
            SAY( "Create a runtime_loader object and call load() with bad arguments." );
            char const * path[] = { ".", NULL };
            tbb::runtime_loader rtl( tbb::runtime_loader::em_status );
            SAY( "Min version is bad." );
            rtl.load( path, -1 );
            CHECK( rtl.status() == tbb::runtime_loader::ec_bad_arg );
            SAY( "Max version is bad." );
            rtl.load( path, TBB_INTERFACE_VERSION, -1 );
            CHECK( rtl.status() == tbb::runtime_loader::ec_bad_arg );
            SAY( "Both versions are bad." );
            rtl.load( path, -1, -1 );
            CHECK( rtl.status() == tbb::runtime_loader::ec_bad_arg );
            SAY( "Min is bigger than max." );
            rtl.load( path, TBB_INTERFACE_VERSION + 1, TBB_INTERFACE_VERSION - 1 );
            CHECK( rtl.status() == tbb::runtime_loader::ec_bad_arg );
        }

        {
            SAY( "Create a proxy object and call load() with good arguments but not availabe version." );
            char const * path[] = { ".", NULL };
            tbb::runtime_loader rtl( tbb::runtime_loader::em_status );
            SAY( "Min version too big." );
            rtl.load( path, TBB_INTERFACE_VERSION + 1, TBB_INTERFACE_VERSION + 1 );
            CHECK( rtl.status() == tbb::runtime_loader::ec_no_lib );
            SAY( "Max version is too small." );
            rtl.load( path, TBB_INTERFACE_VERSION - 1, TBB_INTERFACE_VERSION - 1 );
            CHECK( rtl.status() == tbb::runtime_loader::ec_no_lib );
        }

        {
            SAY( "Test em_throw mode." );
            char const * path[] = { ".", NULL };
            tbb::runtime_loader rtl( tbb::runtime_loader::em_throw );
            tbb::runtime_loader::error_code code = tbb::runtime_loader::ec_ok;
            __TBB_TRY {
                rtl.load( path, -1 );
            } __TBB_CATCH ( tbb::runtime_loader::error_code c ) {
                code = c;
            }; // __TBB_TRY
            CHECK( code == tbb::runtime_loader::ec_bad_arg );
            __TBB_TRY {
                rtl.load( path, TBB_INTERFACE_VERSION + 1 );
            } __TBB_CATCH ( tbb::runtime_loader::error_code c ) {
                code = c;
            }; // __TBB_TRY
            CHECK( code == tbb::runtime_loader::ec_no_lib );
        }

        {
            SAY( "Load current version, but specify wrong directories." );
            tbb::runtime_loader rtl( tbb::runtime_loader::em_status );
            SAY( "Specify no directories." );
            char const * path0[] = { NULL };
            rtl.load( path0 );
            CHECK( rtl.status() == tbb::runtime_loader::ec_no_lib );
            SAY( "Specify directories without library." );
            char const * path1[] = { "..", "/", NULL };
            rtl.load( path1 );
            CHECK( rtl.status() == tbb::runtime_loader::ec_no_lib );
        }

        {
            SAY( "Now really load library and do various tests." );
            char const * path[] = { ".", NULL };
            tbb::runtime_loader rtl( tbb::runtime_loader::em_status );
            SAY( "Load current version." );
            rtl.load( path, TBB_INTERFACE_VERSION, TBB_INTERFACE_VERSION );
            CHECK( rtl.status() == tbb::runtime_loader::ec_ok );
            if ( rtl.status() == tbb::runtime_loader::ec_ok ) {
                {
                    SAY( "Make sure the library really loaded." );
                    CHECK_TBB_IS_LOADED();
                }
                SAY( "Call load() again, it should return a error." );
                rtl.load( path, TBB_INTERFACE_VERSION, TBB_INTERFACE_VERSION );
                CHECK( rtl.status() == tbb::runtime_loader::ec_bad_call );
                {
                    SAY( "Initialize task_scheduler." );
                    tbb::task_scheduler_init init( 1 );
                    // Check what?
                }

                // There was a problem on Linux, and still a problem on Mac OS X.
                SAY( "Throw an exception." );
                // Iterate thru all the ids first.
                for ( int id = 1; id < tbb::internal::eid_max; ++ id ) {
                    bool ex_caught = false;
                    __TBB_TRY {
                        tbb::internal::throw_exception( tbb::internal::exception_id( id ) );
                    } __TBB_CATCH ( std::exception const & ) {
                        SAY( "Expected exception caught." );
                        ex_caught = true;
                    } __TBB_CATCH ( ... ) {
                        SAY( "Unexpected exception caught." );
                    }; // try
                    CHECK( ex_caught );
                }; // for
                // Now try to catch exceptions of specific types.
                #define CHECK_EXCEPTION( id, type )                                 \
                    {                                                               \
                        SAY( "Trowing " #id " exception of " #type " type..." );    \
                        bool ex_caught = false;                                     \
                        __TBB_TRY {                                                 \
                            tbb::internal::throw_exception( tbb::internal::id );    \
                        } __TBB_CATCH ( type const & ) {                            \
                            SAY( #type " exception caught." );                      \
                            ex_caught = true;                                       \
                        } __TBB_CATCH ( ... ) {                                     \
                            SAY( "Unexpected exception caught." );                  \
                        }; /* try */                                                \
                        CHECK( ex_caught );                                         \
                    }
                CHECK_EXCEPTION( eid_bad_alloc,                   std::bad_alloc                   );
                CHECK_EXCEPTION( eid_bad_last_alloc,              tbb::bad_last_alloc              );
                CHECK_EXCEPTION( eid_nonpositive_step,            std::invalid_argument            );
                CHECK_EXCEPTION( eid_out_of_range,                std::out_of_range                );
                CHECK_EXCEPTION( eid_segment_range_error,         std::range_error                 );
                CHECK_EXCEPTION( eid_missing_wait,                tbb::missing_wait                );
                CHECK_EXCEPTION( eid_invalid_multiple_scheduling, tbb::invalid_multiple_scheduling );
                CHECK_EXCEPTION( eid_improper_lock,               tbb::improper_lock               );
                CHECK_EXCEPTION( eid_possible_deadlock,           std::runtime_error               );
                CHECK_EXCEPTION( eid_reservation_length_error,    std::length_error                );
                #undef CHECK_EXCEPTION
                {
                    bool ex_caught = false;
                    __TBB_TRY {
                        tbb::internal::handle_perror( EAGAIN, "apple" );
                    } __TBB_CATCH ( std::runtime_error const & ) {
                        SAY( "Expected exception caught." );
                        ex_caught = true;
                    } __TBB_CATCH ( ... ) {
                        SAY( "Unexpected exception caught." );
                    }; // try
                    CHECK( ex_caught );
                }
            }; // if
        }

        {
            SAY( "Test multiple proxies." );
            char const * path[] = { ".", NULL };
            tbb::runtime_loader rtl0( tbb::runtime_loader::em_status );
            tbb::runtime_loader rtl1( tbb::runtime_loader::em_status );
            CHECK( rtl0.status() == tbb::runtime_loader::ec_ok );
            CHECK( rtl1.status() == tbb::runtime_loader::ec_ok );
            SAY( "Load current version with the first rtl." );
            rtl0.load( path );
            CHECK( rtl0.status() == tbb::runtime_loader::ec_ok );
            CHECK_TBB_IS_LOADED();
            SAY( "Load another version with the second proxy, it should return a error." );
            rtl1.load( path, TBB_INTERFACE_VERSION + 1 );
            CHECK( rtl1.status() == tbb::runtime_loader::ec_bad_ver );
            SAY( "Load the same version with the second proxy, it should return ok." );
            rtl1.load( path );
            CHECK( rtl1.status() == tbb::runtime_loader::ec_ok );
            CHECK_TBB_IS_LOADED();
        }

    } __TBB_CATCH( ... ) {

        ASSERT( 0, "unexpected exception" );

    }; // __TBB_TRY

    if ( errors > 0 ) {
        REPORT( "Some tests failed.\n" );
        exit( 1 );
    }; // if

    return Harness::Done;

} // main

#endif // !(_WIN32||_WIN64)

// end of file //
