1 /* Copyright libuv 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 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h> /* memset */
28
29 #ifdef __POSIX__
30 #include <pthread.h>
31 #include <errno.h>
32 #endif
33
34 #ifdef _WIN32
35 #include <windows.h>
36 #else
37 #include <unistd.h>
38 #endif
39
40 uv_sem_t sem;
41
simple_task(void * args)42 static void simple_task(void *args) {
43 uv_sem_wait(&sem);
44 printf("in simple_task\n");
45 }
46
TEST_IMPL(thread_priority)47 TEST_IMPL(thread_priority) {
48 int priority;
49 #ifndef _WIN32
50 int min;
51 int max;
52 int policy;
53 struct sched_param param;
54 #endif
55 uv_thread_t task_id;
56
57 /* Verify that passing a NULL pointer returns UV_EINVAL. */
58 ASSERT_EQ(UV_EINVAL, uv_thread_getpriority(0, NULL));
59 ASSERT_OK(uv_sem_init(&sem, 1));
60 uv_sem_wait(&sem);
61 ASSERT_OK(uv_thread_create(&task_id, simple_task, NULL));
62 ASSERT_OK(uv_thread_getpriority(task_id, &priority));
63
64 #ifdef _WIN32
65 ASSERT_EQ(priority, THREAD_PRIORITY_NORMAL);
66 #else
67 ASSERT_OK(pthread_getschedparam(task_id, &policy, ¶m));
68 #ifdef __PASE__
69 min = 1;
70 max = 127;
71 #else
72 min = sched_get_priority_min(policy);
73 max = sched_get_priority_max(policy);
74 #endif
75 ASSERT(priority >= min && priority <= max);
76 #endif
77
78 ASSERT_OK(uv_thread_setpriority(task_id, UV_THREAD_PRIORITY_LOWEST));
79 ASSERT_OK(uv_thread_getpriority(task_id, &priority));
80
81 #ifdef _WIN32
82 ASSERT_EQ(priority, THREAD_PRIORITY_LOWEST);
83 #else
84 ASSERT_EQ(priority, min);
85 #endif
86
87 /**
88 * test set nice value for the calling thread with default schedule policy
89 */
90 #ifdef __linux__
91 ASSERT_OK(uv_thread_getpriority(pthread_self(), &priority));
92 ASSERT_EQ(priority, 0);
93 ASSERT_OK(uv_thread_setpriority(pthread_self(), UV_THREAD_PRIORITY_LOWEST));
94 ASSERT_OK(uv_thread_getpriority(pthread_self(), &priority));
95 ASSERT_EQ(priority, (0 - UV_THREAD_PRIORITY_LOWEST * 2));
96 #endif
97
98 uv_sem_post(&sem);
99
100 ASSERT_OK(uv_thread_join(&task_id));
101
102 uv_sem_destroy(&sem);
103
104 return 0;
105 }
