Francesco Romani | e246211 | 2015-01-12 14:11:13 +0100 | [diff] [blame] | 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 | |
Peter Maydell | 681c28a | 2016-02-08 18:08:51 +0000 | [diff] [blame] | 9 | #include "qemu/osdep.h" |
Francesco Romani | e246211 | 2015-01-12 14:11:13 +0100 | [diff] [blame] | 10 | #include "block/block_int.h" |
| 11 | #include "block/write-threshold.h" |
| 12 | |
| 13 | |
| 14 | static void test_threshold_not_set_on_init(void) |
| 15 | { |
| 16 | uint64_t res; |
| 17 | BlockDriverState bs; |
| 18 | memset(&bs, 0, sizeof(bs)); |
| 19 | |
| 20 | g_assert(!bdrv_write_threshold_is_set(&bs)); |
| 21 | |
| 22 | res = bdrv_write_threshold_get(&bs); |
| 23 | g_assert_cmpint(res, ==, 0); |
| 24 | } |
| 25 | |
| 26 | static void test_threshold_set_get(void) |
| 27 | { |
| 28 | uint64_t threshold = 4 * 1024 * 1024; |
| 29 | uint64_t res; |
| 30 | BlockDriverState bs; |
| 31 | memset(&bs, 0, sizeof(bs)); |
| 32 | |
| 33 | bdrv_write_threshold_set(&bs, threshold); |
| 34 | |
| 35 | g_assert(bdrv_write_threshold_is_set(&bs)); |
| 36 | |
| 37 | res = bdrv_write_threshold_get(&bs); |
| 38 | g_assert_cmpint(res, ==, threshold); |
| 39 | } |
| 40 | |
| 41 | static void test_threshold_multi_set_get(void) |
| 42 | { |
| 43 | uint64_t threshold1 = 4 * 1024 * 1024; |
| 44 | uint64_t threshold2 = 15 * 1024 * 1024; |
| 45 | uint64_t res; |
| 46 | BlockDriverState bs; |
| 47 | memset(&bs, 0, sizeof(bs)); |
| 48 | |
| 49 | bdrv_write_threshold_set(&bs, threshold1); |
| 50 | bdrv_write_threshold_set(&bs, threshold2); |
| 51 | res = bdrv_write_threshold_get(&bs); |
| 52 | g_assert_cmpint(res, ==, threshold2); |
| 53 | } |
| 54 | |
| 55 | static void test_threshold_not_trigger(void) |
| 56 | { |
| 57 | uint64_t amount = 0; |
| 58 | uint64_t threshold = 4 * 1024 * 1024; |
| 59 | BlockDriverState bs; |
| 60 | BdrvTrackedRequest req; |
| 61 | |
| 62 | memset(&bs, 0, sizeof(bs)); |
| 63 | memset(&req, 0, sizeof(req)); |
| 64 | req.offset = 1024; |
| 65 | req.bytes = 1024; |
| 66 | |
| 67 | bdrv_write_threshold_set(&bs, threshold); |
| 68 | amount = bdrv_write_threshold_exceeded(&bs, &req); |
| 69 | g_assert_cmpuint(amount, ==, 0); |
| 70 | } |
| 71 | |
| 72 | |
| 73 | static void test_threshold_trigger(void) |
| 74 | { |
| 75 | uint64_t amount = 0; |
| 76 | uint64_t threshold = 4 * 1024 * 1024; |
| 77 | BlockDriverState bs; |
| 78 | BdrvTrackedRequest req; |
| 79 | |
| 80 | memset(&bs, 0, sizeof(bs)); |
| 81 | memset(&req, 0, sizeof(req)); |
| 82 | req.offset = (4 * 1024 * 1024) - 1024; |
| 83 | req.bytes = 2 * 1024; |
| 84 | |
| 85 | bdrv_write_threshold_set(&bs, threshold); |
| 86 | amount = bdrv_write_threshold_exceeded(&bs, &req); |
| 87 | g_assert_cmpuint(amount, >=, 1024); |
| 88 | } |
| 89 | |
| 90 | typedef struct TestStruct { |
| 91 | const char *name; |
| 92 | void (*func)(void); |
| 93 | } TestStruct; |
| 94 | |
| 95 | |
| 96 | int main(int argc, char **argv) |
| 97 | { |
| 98 | size_t i; |
| 99 | TestStruct tests[] = { |
| 100 | { "/write-threshold/not-set-on-init", |
| 101 | test_threshold_not_set_on_init }, |
| 102 | { "/write-threshold/set-get", |
| 103 | test_threshold_set_get }, |
| 104 | { "/write-threshold/multi-set-get", |
| 105 | test_threshold_multi_set_get }, |
| 106 | { "/write-threshold/not-trigger", |
| 107 | test_threshold_not_trigger }, |
| 108 | { "/write-threshold/trigger", |
| 109 | test_threshold_trigger }, |
| 110 | { NULL, NULL } |
| 111 | }; |
| 112 | |
| 113 | g_test_init(&argc, &argv, NULL); |
| 114 | for (i = 0; tests[i].name != NULL; i++) { |
| 115 | g_test_add_func(tests[i].name, tests[i].func); |
| 116 | } |
| 117 | return g_test_run(); |
| 118 | } |