| 1 | /* |
| 2 | * Test block device write threshold |
| 3 | * |
| 4 | * This work is licensed under the terms of the GNU LGPL, version 2 or later. |
| 5 | * See the COPYING.LIB file in the top-level directory. |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #include "qemu/osdep.h" |
| 10 | #include "block/block_int.h" |
| 11 | #include "block/write-threshold.h" |
| 12 | |
| 13 | |
| 14 | static void test_threshold_not_trigger(void) |
| 15 | { |
| 16 | uint64_t threshold = 4 * 1024 * 1024; |
| 17 | BlockDriverState bs; |
| 18 | |
| 19 | memset(&bs, 0, sizeof(bs)); |
| 20 | |
| 21 | bdrv_write_threshold_set(&bs, threshold); |
| 22 | bdrv_write_threshold_check_write(&bs, 1024, 1024); |
| 23 | g_assert_cmpuint(bdrv_write_threshold_get(&bs), ==, threshold); |
| 24 | } |
| 25 | |
| 26 | |
| 27 | static void test_threshold_trigger(void) |
| 28 | { |
| 29 | uint64_t threshold = 4 * 1024 * 1024; |
| 30 | BlockDriverState bs; |
| 31 | |
| 32 | memset(&bs, 0, sizeof(bs)); |
| 33 | |
| 34 | bdrv_write_threshold_set(&bs, threshold); |
| 35 | bdrv_write_threshold_check_write(&bs, threshold - 1024, 2 * 1024); |
| 36 | g_assert_cmpuint(bdrv_write_threshold_get(&bs), ==, 0); |
| 37 | } |
| 38 | |
| 39 | |
| 40 | int main(int argc, char **argv) |
| 41 | { |
| 42 | g_test_init(&argc, &argv, NULL); |
| 43 | g_test_add_func("/write-threshold/not-trigger", test_threshold_not_trigger); |
| 44 | g_test_add_func("/write-threshold/trigger", test_threshold_trigger); |
| 45 | |
| 46 | return g_test_run(); |
| 47 | } |