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

//

//        memvar1.cxx

//

//        Variable memory pool test 1

//

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

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

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

//

// Author(s):     dsm, jlarmour

// Contributors:  

// Date:          2000-06-18

// Description:   Tests basic variable memory pool functionality

//####DESCRIPTIONEND####

#include <pkgconf/memalloc.h>

#include <pkgconf/system.h>

#ifdef CYGPKG_KERNEL

#include <pkgconf/kernel.h>

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

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

#include <cyg/kernel/sched.inl>

#include <cyg/kernel/thread.inl>

#include <cyg/kernel/timer.hxx>         // Cyg_Timer

#include <cyg/kernel/clock.inl>         // Cyg_Clock

#define NTHREADS 2

#include "testaux.hxx"

#endif

#include <cyg/memalloc/memvar.hxx>

#include <cyg/infra/testcase.h>

static const cyg_int32 memsize = 10240;

static cyg_uint8 mem[2][memsize];

static Cyg_Mempool_Variable mempool0(mem[0], memsize);

static Cyg_Mempool_Variable mempool1(mem[1], memsize);

static void check_in_mp0(cyg_uint8 *p, cyg_int32 size)

{

    CYG_TEST_CHECK(NULL != p,

                   "Allocation failed");

    CYG_TEST_CHECK(mem[0] <= p && p+size < mem[1],

                   "Block outside memory pool");

}

static void entry0( CYG_ADDRWORD data )

{

    cyg_int32 f0,f1,f2,t0;

    cyg_uint8 *p0, *p1;

    cyg_int32 most_of_mem=memsize/4*3;

    Cyg_Mempool_Status stat;

    mempool0.get_status( CYG_MEMPOOL_STAT_ORIGBASE|

                         CYG_MEMPOOL_STAT_BLOCKSIZE|

                         CYG_MEMPOOL_STAT_MAXFREE|

                         CYG_MEMPOOL_STAT_ORIGSIZE, stat );

    CYG_TEST_CHECK(mem[0] == stat.origbase, "get_status: base wrong");

    CYG_TEST_CHECK(memsize == stat.origsize, "get_status: size wrong");

    CYG_TEST_CHECK(0 < stat.maxfree && stat.maxfree <= stat.origsize,

                   "get_status: maxfree wildly wrong");

    CYG_TEST_CHECK(-1 == stat.blocksize, "blocksize wrong" );

    mempool0.get_status( CYG_MEMPOOL_STAT_TOTALFREE|

                         CYG_MEMPOOL_STAT_ARENASIZE, stat );

    t0 = stat.arenasize;

    CYG_TEST_CHECK(t0 > 0, "Negative total memory" );

    f0 = stat.totalfree;

    CYG_TEST_CHECK(f0 > 0, "Negative free memory" );

    CYG_TEST_CHECK(t0 <= memsize, "get_totalsize: Too much memory");

    CYG_TEST_CHECK(f0 <= t0 , "More memory free than possible" );

    mempool0.get_status( CYG_MEMPOOL_STAT_WAITING, stat );

    CYG_TEST_CHECK( !stat.waiting,

                    "Thread waiting for memory; there shouldn't be");

    CYG_TEST_CHECK( NULL == mempool0.try_alloc(memsize+1),

                    "Managed to allocate too much memory");

#ifdef CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE

    p0 = mempool0.alloc(most_of_mem);

#else

    p0 = mempool0.try_alloc(most_of_mem);

#endif

    check_in_mp0(p0, most_of_mem);

    mempool0.get_status( CYG_MEMPOOL_STAT_TOTALFREE, stat );

    f1 = stat.totalfree;

    CYG_TEST_CHECK(f1 > 0, "Negative free memory" );

    CYG_TEST_CHECK(f1 < f0, "Free memory didn't decrease after allocation" );

    CYG_TEST_CHECK( NULL == mempool0.try_alloc(most_of_mem),

                    "Managed to allocate too much memory");

    CYG_TEST_CHECK(mempool0.free(p0, most_of_mem), "Couldn't free");

    mempool0.get_status( CYG_MEMPOOL_STAT_TOTALFREE, stat );

    f2 = stat.totalfree;

    CYG_TEST_CHECK(f2 > f1, "Free memory didn't increase after free" );

    // should be able to reallocate now memory is free

    p0 = mempool0.try_alloc(most_of_mem);

    check_in_mp0(p0, most_of_mem);

    p1 = mempool0.try_alloc(10);

    check_in_mp0(p1, 10);

    CYG_TEST_CHECK(p1+10 <= p0 || p1 >= p0+most_of_mem,

                   "Ranges of allocated memory overlap");

    CYG_TEST_CHECK(mempool0.free(p0, 0), "Couldn't free");

    CYG_TEST_CHECK(mempool0.free(p1, 10), "Couldn't free");

#ifdef CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE

# ifdef CYGFUN_KERNEL_THREADS_TIMER

    // This shouldn't have to wait

    p0 = mempool0.alloc(most_of_mem,

        Cyg_Clock::real_time_clock->current_value() + 100000);

    check_in_mp0(p0, most_of_mem);

    p1 = mempool0.alloc(most_of_mem,

        Cyg_Clock::real_time_clock->current_value() + 2);

    CYG_TEST_CHECK(NULL == p1, "Timed alloc unexpectedly worked");

    p1 = mempool0.alloc(10,

        Cyg_Clock::real_time_clock->current_value() + 2);

    check_in_mp0(p1, 10);

    // Expect thread 1 to have run while processing previous timed

    // allocation.  It should therefore tbe waiting.

    mempool1.get_status( CYG_MEMPOOL_STAT_WAITING, stat );

    CYG_TEST_CHECK(stat.waiting, "There should be a thread waiting");

# endif

#endif

    CYG_TEST_PASS_FINISH("Variable memory pool 1 OK");

}

#ifdef CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE

static void entry1( CYG_ADDRWORD data )

{

    mempool1.alloc(memsize+1);

    CYG_TEST_FAIL("Oversized alloc returned");

}

#endif

void memvar1_main( void )

{

    CYG_TEST_INIT();

    CYG_TEST_INFO("Starting Variable memory pool 1 test");

#ifdef CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE

    new_thread(entry0, 0);

    new_thread(entry1, 1);

    Cyg_Scheduler::start();

#elif defined(CYGPKG_KERNEL)

    new_thread(entry0, 0);

    Cyg_Scheduler::start();

#else

    entry0(0);

#endif

    CYG_TEST_FAIL_FINISH("Not reached");

}

externC void

cyg_start( void )

{

#ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG

    cyg_hal_invoke_constructors();

#endif

    memvar1_main();

}

// EOF memvar1.cxx