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blocktest: switch from rand() to lrand48()

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Apparently, with NetBSD's libc, the exclusive OR of the lower eight
bits of 4096 consecutive rand() values is zero, breaking some tests.
This commit is contained in:
David van Moolenbroek 2012-09-10 11:35:04 +02:00
parent 4fbdf1946d
commit c9f644bd68
1 changed files with 7 additions and 7 deletions
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14
test/blocktest/blocktest.c
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@ -249,7 +249,7 @@ static int raw_xfer(dev_t minor, u64_t pos, iovec_s_t *iovec, int nr_req,
m.BDEV_POS_HI = ex64hi(pos); m.BDEV_POS_HI = ex64hi(pos);
m.BDEV_COUNT = nr_req; m.BDEV_COUNT = nr_req;
m.BDEV_GRANT = grant; m.BDEV_GRANT = grant;
m.BDEV_ID = rand(); m.BDEV_ID = lrand48();
r = sendrec_driver(&m, exp, res); r = sendrec_driver(&m, exp, res);
@ -370,7 +370,7 @@ static void bad_read1(void)
mt.BDEV_POS_HI = 0L; mt.BDEV_POS_HI = 0L;
mt.BDEV_COUNT = 1; mt.BDEV_COUNT = 1;
mt.BDEV_GRANT = grant; mt.BDEV_GRANT = grant;
mt.BDEV_ID = rand(); mt.BDEV_ID = lrand48();
memset(&iovt, 0, sizeof(iovt)); memset(&iovt, 0, sizeof(iovt));
iovt.iov_grant = grant2; iovt.iov_grant = grant2;
@ -465,7 +465,7 @@ static u32_t fill_rand(u8_t *ptr, size_t size)
size_t i; size_t i;
for (i = 0; i < size; i++) for (i = 0; i < size; i++)
ptr[i] = rand() % 256; ptr[i] = lrand48() % 256;
return get_sum(ptr, size); return get_sum(ptr, size);
} }
@ -999,7 +999,7 @@ static void open_device(dev_t minor)
m.m_type = BDEV_OPEN; m.m_type = BDEV_OPEN;
m.BDEV_MINOR = minor; m.BDEV_MINOR = minor;
m.BDEV_ACCESS = may_write ? (R_BIT | W_BIT) : R_BIT; m.BDEV_ACCESS = may_write ? (R_BIT | W_BIT) : R_BIT;
m.BDEV_ID = rand(); m.BDEV_ID = lrand48();
sendrec_driver(&m, OK, &res); sendrec_driver(&m, OK, &res);
@ -1025,7 +1025,7 @@ static void close_device(dev_t minor)
memset(&m, 0, sizeof(m)); memset(&m, 0, sizeof(m));
m.m_type = BDEV_CLOSE; m.m_type = BDEV_CLOSE;
m.BDEV_MINOR = minor; m.BDEV_MINOR = minor;
m.BDEV_ID = rand(); m.BDEV_ID = lrand48();
sendrec_driver(&m, OK, &res); sendrec_driver(&m, OK, &res);
@ -1067,7 +1067,7 @@ static int vir_ioctl(dev_t minor, int req, void *ptr, ssize_t exp,
m.BDEV_POS_HI = 0L; m.BDEV_POS_HI = 0L;
m.BDEV_REQUEST = req; m.BDEV_REQUEST = req;
m.BDEV_GRANT = grant; m.BDEV_GRANT = grant;
m.BDEV_ID = rand(); m.BDEV_ID = lrand48();
r = sendrec_driver(&m, exp, res); r = sendrec_driver(&m, exp, res);
@ -2606,7 +2606,7 @@ static int sef_cb_init_fresh(int UNUSED(type), sef_init_info_t *UNUSED(info))
if ((r = getuptime(&now)) != OK) if ((r = getuptime(&now)) != OK)
panic("unable to get uptime: %d", r); panic("unable to get uptime: %d", r);
srand(now); srand48(now);
return OK; return OK;
} }