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/*==========================================================================

//

//        kmemvar1.cxx

//

//        Kernel C API Variable memory pool test 1

//

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

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

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// or inline functions from this file, or you compile this file and link it

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//####ECOSGPLCOPYRIGHTEND####

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

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

//

// Author(s):     dsm

// Contributors:  dsm

// Date:          1998-06-08

// Description:   Tests basic variable memory pool functionality

//####DESCRIPTIONEND####

*/

#include <pkgconf/memalloc.h>

#include <cyg/infra/testcase.h>

#ifdef CYGFUN_MEMALLOC_KAPI

#include <cyg/hal/hal_arch.h>           // CYGNUM_HAL_STACK_SIZE_TYPICAL

#include <pkgconf/kernel.h>

#include <cyg/kernel/kapi.h>

#define NTHREADS 2

#define STACKSIZE CYGNUM_HAL_STACK_SIZE_TYPICAL

static cyg_handle_t thread[NTHREADS];

static cyg_thread thread_obj[NTHREADS];

static char stack[NTHREADS][STACKSIZE];

#define MEMSIZE 10240

static cyg_uint8 mem[2][MEMSIZE];

static cyg_mempool_var mempool_obj[2];

static cyg_handle_t mempool0, mempool1;

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_t data )

{

    cyg_uint8 *p0, *p1;

    cyg_int32 most_of_mem=MEMSIZE/4*3;

    cyg_mempool_info info0, info1, info2;

    cyg_mempool_var_get_info(mempool0, &info0);

    CYG_TEST_CHECK(mem[0] == info0.base, "get_arena: base wrong");

    CYG_TEST_CHECK(MEMSIZE == info0.size, "get_arena: size wrong");

    CYG_TEST_CHECK(0 < info0.maxfree && info0.maxfree <= info0.size,

                   "get_arena: maxfree wildly wrong");

    CYG_TEST_CHECK(-1 == info0.blocksize, "get_blocksize wrong" );

    CYG_TEST_CHECK(info0.totalmem > 0, "Negative total memory" );

    CYG_TEST_CHECK(info0.freemem > 0, "Negative free memory" );

    CYG_TEST_CHECK(info0.totalmem <= MEMSIZE,

                   "info.totalsize: Too much memory");

    CYG_TEST_CHECK(info0.freemem <= info0.totalmem ,

                   "More memory free than possible" );

    CYG_TEST_CHECK( !cyg_mempool_var_waiting(mempool0),

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

    CYG_TEST_CHECK( NULL == cyg_mempool_var_try_alloc(mempool0, MEMSIZE+1),

                    "Managed to allocate too much memory");

#ifdef CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE

    p0 = cyg_mempool_var_alloc(mempool0, most_of_mem);

    check_in_mp0(p0, most_of_mem);

    cyg_mempool_var_get_info(mempool0, &info1);

    CYG_TEST_CHECK(info1.freemem > 0, "Negative free memory" );

    CYG_TEST_CHECK(info1.freemem < info0.freemem,

                   "Free memory didn't decrease after allocation" );

    CYG_TEST_CHECK( NULL == cyg_mempool_var_try_alloc(mempool0, most_of_mem),

                    "Managed to allocate too much memory");

    cyg_mempool_var_free(mempool0, p0);

    cyg_mempool_var_get_info(mempool0, &info2);

    CYG_TEST_CHECK(info2.freemem > info1.freemem,

                   "Free memory didn't increase after free" );

#endif

    // should be able to reallocate now memory is free

    p0 = cyg_mempool_var_try_alloc(mempool0, most_of_mem);

    check_in_mp0(p0, most_of_mem);

    p1 = cyg_mempool_var_try_alloc(mempool0, 10);

    check_in_mp0(p1, 10);

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

                   "Ranges of allocated memory overlap");

    cyg_mempool_var_free(mempool0, p0);

    cyg_mempool_var_free(mempool0, p1);

#ifdef CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE

# ifdef CYGFUN_KERNEL_THREADS_TIMER

    // This shouldn't have to wait

    p0 = cyg_mempool_var_timed_alloc(mempool0, most_of_mem,

                                     cyg_current_time()+100000);

    check_in_mp0(p0, most_of_mem);

    p1 = cyg_mempool_var_timed_alloc(mempool0, most_of_mem,

                                     cyg_current_time()+2);

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

    p1 = cyg_mempool_var_timed_alloc(mempool0, 10,

                                     cyg_current_time()+2);

    check_in_mp0(p1, 10);

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

    // allocation.  It should therefore tbe waiting.

    CYG_TEST_CHECK(cyg_mempool_var_waiting(mempool1), "There should be a thread waiting");

# endif

#endif

    CYG_TEST_PASS_FINISH("Kernel C API Variable memory pool 1 OK");

}

#ifdef CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE

static void entry1( cyg_addrword_t data )

{

    cyg_mempool_var_alloc(mempool1, MEMSIZE+1);

    CYG_TEST_FAIL("Oversized alloc returned");

}

#endif

void kmemvar1_main( void )

{

    CYG_TEST_INIT();

    CYG_TEST_INFO("Starting Kernel C API Variable memory pool 1 test");

    cyg_thread_create(4, entry0 , (cyg_addrword_t)0, "kmemvar1-0",

        (void *)stack[0], STACKSIZE, &thread[0], &thread_obj[0]);

    cyg_thread_resume(thread[0]);

#ifdef CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE

    cyg_thread_create(4, entry1 , (cyg_addrword_t)1, "kmemvar1-1",

        (void *)stack[1], STACKSIZE, &thread[1], &thread_obj[1]);

    cyg_thread_resume(thread[1]);

#endif

    cyg_mempool_var_create(mem[0], MEMSIZE, &mempool0, &mempool_obj[0]);

    cyg_mempool_var_create(mem[1], MEMSIZE, &mempool1, &mempool_obj[1]);

    cyg_scheduler_start();

    CYG_TEST_FAIL_FINISH("Not reached");

}

externC void

cyg_start( void )

{

    kmemvar1_main();

}

#else /* ifdef CYGFUN_MEMALLOC_KAPI */

externC void

cyg_start( void )

{

    CYG_TEST_INIT();

    CYG_TEST_NA("Kernel C API layer disabled");

}

#endif /* ifdef CYGFUN_MEMALLOC_KAPI */

/* EOF kmemvar1.c */