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

//

//        heaptest.cxx

//

//        Test all the memory used by heaps to check it's all valid

//

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

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

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

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

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

//

// Author(s):     jlarmour

// Contributors:  

// Date:          2001-07-17

// Description:   Tests all memory allocated for use by heaps.

//

//

//####DESCRIPTIONEND####

// INCLUDES

#include <pkgconf/system.h>

#include <pkgconf/hal.h>

#include <pkgconf/memalloc.h> // config header

#ifdef CYGPKG_ISOINFRA

# include <pkgconf/isoinfra.h>

# include <stdlib.h>

#endif

#include <cyg/infra/testcase.h>

#if !defined(CYGPKG_ISOINFRA)

# define NA_MSG "Requires isoinfra package"

#elif !CYGINT_ISO_MALLOC

# define NA_MSG "Requires malloc"

#elif !CYGINT_ISO_MALLINFO

# define NA_MSG "Requires mallinfo"

#endif

#ifdef NA_MSG

externC void

cyg_start(void)

{

    CYG_TEST_INIT();

    CYG_TEST_NA( NA_MSG );

    CYG_TEST_FINISH("Done");

}

#else

#include <cyg/infra/diag.h>

#define ERRORTHRESHOLD 10

#define ITERS (cyg_test_is_simulator ? 1 : 10)

#define INTALIGNED(_x_) (!((unsigned long)(_x_) & (sizeof(int)-1)))

int

test_pat(unsigned char *buf, int size,

         unsigned int pat, cyg_bool addrpat,

         const char *testname)

{

    unsigned char *bufptr=buf;

    register unsigned int *ibufptr;

    unsigned char *endptr=buf+size;

    register unsigned int *endptra; // int aligned

    int errors=0;

    unsigned char bpat = pat & 0xFF;

    endptra = (int *)((unsigned long)endptr & ~(sizeof(int)-1));

    // Set to the pattern

    while (!INTALIGNED(bufptr)) {

        if (addrpat)

            bpat = ((int)bufptr)&0xFF;

        *bufptr++ = bpat;

    }

    ibufptr = (unsigned int *)bufptr;

    while ( ibufptr < endptra ) {

        if (addrpat)

            pat = (unsigned int)ibufptr;

        *ibufptr++ = pat;

    }

    bufptr = (unsigned char *)ibufptr;

    while ( bufptr < endptr ) {

        if (addrpat)

            bpat = ((int)bufptr)&0xFF;

        *bufptr++ = bpat;

    }

    // Now compare to the pattern

    bufptr = buf;

    while ( !INTALIGNED(bufptr) ) {

        if (addrpat)

            bpat = ((int)bufptr)&0xFF;

        if ( *bufptr != bpat ) {

            diag_printf( "FAIL:<Memory at 0x%08x: expected 0x%02x, read 0x%02x>\n",

                         bufptr, (int)bpat, (int)*bufptr );

            if ( errors++ == ERRORTHRESHOLD )

                CYG_TEST_FAIL_FINISH( testname );

        }

        bufptr++;

    }

    ibufptr = (unsigned int *)bufptr;

    while ( ibufptr < endptra ) {

        if (addrpat)

            pat = (unsigned int)ibufptr;

        if ( *ibufptr != pat ) {

            diag_printf( "FAIL:<Memory at 0x%08x: expected 0x%08x, read 0x%08x>\n",

                         ibufptr, pat, *ibufptr );

            if ( errors++ == ERRORTHRESHOLD )

                CYG_TEST_FAIL_FINISH( testname );

        }

        ibufptr++;

    }

    bufptr = (unsigned char *)ibufptr;

    while ( bufptr < endptr ) {

        if (addrpat)

            bpat = ((int)bufptr)&0xFF;

        if ( *bufptr != bpat ) {

            diag_printf( "FAIL:<Memory at 0x%08x: expected 0x%02x, read 0x%02x>\n",

                         bufptr, (int)bpat, (int)*bufptr );

            if ( errors++ == ERRORTHRESHOLD )

                CYG_TEST_FAIL_FINISH( testname );

        }

        bufptr++;

    }

    if (errors)

        CYG_TEST_FAIL( testname );

    else

        CYG_TEST_PASS( testname );

    return errors;

} // test_pat()

externC void

cyg_start(void)

{

    unsigned int allonesint=0, checkerboardint1=0, checkerboardint2=0;

    int i;

    int errors=0;

#ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG

    cyg_hal_invoke_constructors();

#endif

    CYG_TEST_INIT();

    CYG_TEST_INFO("Starting heaptest - testing all memory usable as heap");

    CYG_TEST_INFO("Any failures reported may indicate failing RAM hardware,");

    CYG_TEST_INFO("or an invalid memory map");

    for (i=0; i<sizeof(int); i++) {

        allonesint = allonesint << 8;

        allonesint |= 0xFF;

        checkerboardint1 = checkerboardint1 << 8;

        checkerboardint1 |= 0xAA;

        checkerboardint2 = checkerboardint2 << 8;

        checkerboardint2 |= 0x55;

    }

    for (;;) {

        struct mallinfo info;

        char *buf;

        info = mallinfo();

        if ( info.maxfree <= 0 )

            break;

        buf = malloc(info.maxfree);

        if (!buf) {

            diag_printf("Couldn't malloc %d bytes claimed as available",

                        info.maxfree);

            CYG_TEST_FAIL_FINISH("heaptest");

        }

        diag_printf( "INFO:<Testing memory at 0x%08x of size %d for %d iterations>\n",

                     buf, info.maxfree, ITERS );

        for (i=0; i<ITERS; i++) {

            errors += test_pat( buf, info.maxfree, 0, 0, "all zeroes" );

            errors += test_pat( buf, info.maxfree, allonesint, 0,

                                "all ones" );

            errors += test_pat( buf, info.maxfree, checkerboardint1, 0,

                                "checkerboard 1" );

            errors += test_pat( buf, info.maxfree, checkerboardint2, 0,

                                "checkerboard 2" );

            errors += test_pat( buf, info.maxfree, 0, 1,

                                "memory addr" );

        }

        // deliberately don't free so we get the next space

    }

    if (errors)

        CYG_TEST_FAIL_FINISH( "heaptest errors found" );

    else

        CYG_TEST_PASS_FINISH( "heaptest OK" );

} // cyg_start()

#endif // !NA_MSG

// EOF heaptest.cxx