Commit ab4f7057 authored by John Snow's avatar John Snow
Browse files

qtest/ahci: export generate_pattern 



Share the pattern function for ide and ahci test.

Signed-off-by: default avatarJohn Snow <jsnow@redhat.com>
Message-id: 1441926555-19471-3-git-send-email-jsnow@redhat.com
parent d7531638

tests/ahci-test.c

+0 −26
Original line number Diff line number Diff line
@@ -71,32 +71,6 @@ static void string_bswap16(uint16_t *s, size_t bytes) 
    }

}



static void generate_pattern(void *buffer, size_t len, size_t cycle_len)

{

    int i, j;

    unsigned char *tx = (unsigned char *)buffer;

    unsigned char p;

    size_t *sx;



    /* Write an indicative pattern that varies and is unique per-cycle */

    p = rand() % 256;

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

        tx[i] = p++ % 256;

        if (i % cycle_len == 0) {

            p = rand() % 256;

        }

    }



    /* force uniqueness by writing an id per-cycle */

    for (i = 0; i < len / cycle_len; i++) {

        j = i * cycle_len;

        if (j + sizeof(*sx) <= len) {

            sx = (size_t *)&tx[j];

            *sx = i;

        }

    }

}



/**

 * Verify that the transfer did not corrupt our state at all.

 */

tests/libqos/libqos.c

+26 −0
Original line number Diff line number Diff line
@@ -212,3 +212,29 @@ void prepare_blkdebug_script(const char *debug_fn, const char *event) 
    ret = fclose(debug_file);

    g_assert(ret == 0);

}



void generate_pattern(void *buffer, size_t len, size_t cycle_len)

{

    int i, j;

    unsigned char *tx = (unsigned char *)buffer;

    unsigned char p;

    size_t *sx;



    /* Write an indicative pattern that varies and is unique per-cycle */

    p = rand() % 256;

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

        tx[i] = p++ % 256;

        if (i % cycle_len == 0) {

            p = rand() % 256;

        }

    }



    /* force uniqueness by writing an id per-cycle */

    for (i = 0; i < len / cycle_len; i++) {

        j = i * cycle_len;

        if (j + sizeof(*sx) <= len) {

            sx = (size_t *)&tx[j];

            *sx = i;

        }

    }

}

tests/libqos/libqos.h

+1 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ void mkqcow2(const char *file, unsigned size_mb); 
void set_context(QOSState *s);

void migrate(QOSState *from, QOSState *to, const char *uri);

void prepare_blkdebug_script(const char *debug_fn, const char *event);

void generate_pattern(void *buffer, size_t len, size_t cycle_len);



static inline uint64_t qmalloc(QOSState *q, size_t bytes)

{