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//==========================================================================

//

//        flag1.cxx

//

//        Flag test 1

//

//==========================================================================

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//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author:        dsm

// Contributors:    dsm

// Date:          1998-05-11

// Description:   Tests basic flag functionality.

//####DESCRIPTIONEND####

#include <pkgconf/kernel.h>

#include <cyg/kernel/thread.hxx>        // Cyg_Thread

#include <cyg/kernel/thread.inl>

#include <cyg/kernel/sched.hxx>         // Cyg_Scheduler::start()

#include <cyg/kernel/flag.hxx>

#include <cyg/infra/testcase.h>

#include <cyg/kernel/sched.inl>

#define NTHREADS 3

#include "testaux.hxx"

static Cyg_Flag f0, f1;

#ifdef CYGFUN_KERNEL_THREADS_TIMER

static Cyg_Flag f2;

#endif

static volatile cyg_atomic q = 0;

#define FIRST_THREAD_WAIT_TIME   5

#define SECOND_THREAD_WAIT_TIME 10

#define THIRD_THREAD_WAIT_TIME  20

static void entry0( CYG_ADDRWORD data )

{

    CYG_TEST_INFO("Testing setbits() and maskbits()");

    CYG_TEST_CHECK(0==f0.peek(), "flag not initialized properly");

    f0.setbits(0x1);

    CYG_TEST_CHECK(1==f0.peek(), "setbits");

    f0.setbits(0x3);

    CYG_TEST_CHECK(3==f0.peek(), "setbits");

    f0.maskbits(~0x5);

    CYG_TEST_CHECK(2==f0.peek(), "maskbits");

    f0.setbits();

    CYG_TEST_CHECK(~0u==f0.peek(), "setbits no arg");

    f0.maskbits();

    CYG_TEST_CHECK(0==f0.peek(), "maskbits no arg");

    CYG_TEST_CHECK(0==q++, "bad synchronization");

    CYG_TEST_INFO("Testing wait()");

    f1.setbits(0x4);

    CYG_TEST_CHECK(0x4==f1.peek(), "maskbits no arg");

    CYG_TEST_CHECK(1==q++, "bad synchronization");

    f1.setbits(0x18);                   // wake t1

    f1.wait(0x11, Cyg_Flag::AND | Cyg_Flag::CLR);

    CYG_TEST_CHECK(0==f1.peek(), "flag value wrong");

    CYG_TEST_CHECK(3==q++, "bad synchronization");

    f0.setbits(0x2);                    // wake t1

    f1.wait(0x10, Cyg_Flag::AND );

    f0.setbits(0x1);                    // wake t1

    f1.wait(0x11, Cyg_Flag::AND | Cyg_Flag::CLR);

#ifdef CYGFUN_KERNEL_THREADS_TIMER

    f2.wait(0x2, Cyg_Flag::OR);

    CYG_TEST_CHECK(20==q,"bad synchronization");

    f2.wait(0x10, Cyg_Flag::AND,

            Cyg_Clock::real_time_clock->current_value()+THIRD_THREAD_WAIT_TIME);

    CYG_TEST_CHECK(21==q++,"bad synchronization");

#endif

    f0.wait(1, Cyg_Flag::OR);

    CYG_TEST_FAIL_FINISH("Not reached");

}

static void entry1( CYG_ADDRWORD data )

{

    f1.wait(0xc, Cyg_Flag::AND);

    CYG_TEST_CHECK(2==q++, "bad synchronization");

    CYG_TEST_CHECK(0x1c==f1.peek(), "flag value wrong");

    f1.setbits(0x1);                    // wake t0

    f0.wait(0x3, Cyg_Flag::OR);

    CYG_TEST_CHECK(4==q++, "bad synchronization");

    CYG_TEST_CHECK(2==f0.peek(), "flag value wrong");

    f1.setbits(0xf0);                   // wake t0,t2

    f0.wait(0x5, Cyg_Flag::AND | Cyg_Flag::CLR); // wait for t0 & t2

    CYG_TEST_CHECK(0==f0.peek(), "flag value wrong");

    CYG_TEST_CHECK(0xf0==f1.peek(), "flag value wrong");

    CYG_TEST_CHECK(5==q++, "bad synchronization");

    f1.maskbits();

    CYG_TEST_CHECK(0==f1.peek(), "flag value wrong");

    CYG_TEST_INFO("Testing poll()");

    f0.setbits(0x55);

    CYG_TEST_CHECK(0x55==f0.peek(), "flag value wrong");

    CYG_TEST_CHECK(0x55==f0.poll(0x3, Cyg_Flag::OR),"bad poll() return");

    CYG_TEST_CHECK(0==f0.poll(0xf, Cyg_Flag::AND),"poll()");

    CYG_TEST_CHECK(0==f0.poll(0xa, Cyg_Flag::OR),"poll()");

    CYG_TEST_CHECK(0x55==f0.peek(), "flag value wrong");

    CYG_TEST_CHECK(0x55==f0.poll(0xf, Cyg_Flag::OR | Cyg_Flag::CLR),"poll");

    CYG_TEST_CHECK(0x0==f0.peek(), "flag value wrong");

    f0.setbits(0x50);

    CYG_TEST_CHECK(0x50==f0.poll(0x10, Cyg_Flag::AND | Cyg_Flag::CLR),"poll");

    CYG_TEST_CHECK(0x0==f0.peek(), "flag value wrong");

    CYG_TEST_INFO("Testing waiting()");

    f0.maskbits();

    CYG_TEST_CHECK(!f0.waiting(), "waiting()");

#ifdef CYGFUN_KERNEL_THREADS_TIMER

    thread[1]->delay( 10 ); // allow other threads to reach wait on f1

    CYG_TEST_CHECK(f1.waiting(), "waiting() not true");

    f1.setbits();                       // wake one of t0,t2

    CYG_TEST_CHECK(f1.waiting(), "waiting() not true");

#else

    f1.setbits(0x11);                   // wake one of t0,t2

#endif

    f1.setbits(0x11);                   // wake other of t0,t2    

    CYG_TEST_CHECK(!f1.waiting(), "waiting not false");

#ifdef CYGFUN_KERNEL_THREADS_TIMER

    CYG_TEST_INFO("Testing wait() with timeout");

    q=20;

    f2.setbits(0x2);                    // synchronize with t0,t2

    CYG_TEST_CHECK(20==q,"bad synchronization");

    f2.wait(0x20, Cyg_Flag::AND,

            Cyg_Clock::real_time_clock->current_value()+SECOND_THREAD_WAIT_TIME);

    CYG_TEST_CHECK(22==q++,"bad synchronization");

#endif

    CYG_TEST_PASS_FINISH("Flag 1 OK");

}

static void entry2( CYG_ADDRWORD data )

{

    f1.wait(0x60, Cyg_Flag::OR);

    f0.setbits(0x4);

    f1.wait(0x11, Cyg_Flag::AND | Cyg_Flag::CLR);

#ifdef CYGFUN_KERNEL_THREADS_TIMER

    f2.wait(0x2, Cyg_Flag::OR);

    CYG_TEST_CHECK(20==q,"bad synchronization");

    CYG_TEST_CHECK(0==f2.wait(0x40, Cyg_Flag::AND,

                              Cyg_Clock::real_time_clock->current_value()+FIRST_THREAD_WAIT_TIME),

                   "timed wait() wrong");

    CYG_TEST_CHECK(20==q++,"bad synchronization");

    // Now wake t0 before it times out

    f2.setbits(0x10);

#endif

    f0.wait(1, Cyg_Flag::OR);

    CYG_TEST_FAIL_FINISH("Not reached");

}

void flag1_main( void )

{

    CYG_TEST_INIT();

    new_thread(entry0, 0);

    new_thread(entry1, 1);

    new_thread(entry2, 2);

    Cyg_Scheduler::start();

    CYG_TEST_FAIL_FINISH("Not reached");

}

externC void

cyg_start( void )

{

#ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG

    cyg_hal_invoke_constructors();

#endif

    flag1_main();

}

// EOF flag1.cxx