1 | /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
2 | * |
3 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
4 | * of this software and associated documentation files (the "Software"), to |
5 | * deal in the Software without restriction, including without limitation the |
6 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
7 | * sell copies of the Software, and to permit persons to whom the Software is |
8 | * furnished to do so, subject to the following conditions: |
9 | * |
10 | * The above copyright notice and this permission notice shall be included in |
11 | * all copies or substantial portions of the Software. |
12 | * |
13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
15 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
16 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
17 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
18 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
19 | * IN THE SOFTWARE. |
20 | */ |
21 | |
22 | #include "uv.h" |
23 | #include "task.h" |
24 | |
25 | #ifndef MILLISEC |
26 | # define MILLISEC 1000 |
27 | #endif |
28 | |
29 | #ifndef NANOSEC |
30 | # define NANOSEC ((uint64_t) 1e9) |
31 | #endif |
32 | |
33 | |
34 | TEST_IMPL(hrtime) { |
35 | uint64_t a, b, diff; |
36 | int i = 75; |
37 | while (i > 0) { |
38 | a = uv_hrtime(); |
39 | uv_sleep(45); |
40 | b = uv_hrtime(); |
41 | |
42 | diff = b - a; |
43 | |
44 | /* The windows Sleep() function has only a resolution of 10-20 ms. Check |
45 | * that the difference between the two hrtime values has a reasonable |
46 | * lower bound. |
47 | */ |
48 | ASSERT(diff > (uint64_t) 25 * NANOSEC / MILLISEC); |
49 | --i; |
50 | } |
51 | return 0; |
52 | } |
53 | |