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1 /* Copyright libuv contributors. All rights reserved.
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to
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5 * deal in the Software without restriction, including without limitation the
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6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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7 * sell copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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19 * IN THE SOFTWARE.
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20 */
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21
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22 #include "uv.h"
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23 #include "task.h"
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24
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25 #include <stdio.h>
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26 #include <stdlib.h>
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27 #include <string.h> /* memset */
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28
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29 #ifdef __POSIX__
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30 #include <pthread.h>
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31 #include <errno.h>
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32 #endif
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33
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34 #ifdef _WIN32
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35 #include <windows.h>
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36 #else
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37 #include <unistd.h>
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38 #endif
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39
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40 uv_sem_t sem;
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41
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42 static void simple_task(void *args) {
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43 uv_sem_wait(&sem);
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44 printf("in simple_task\n");
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45 }
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46
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47 TEST_IMPL(thread_priority) {
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48 int priority;
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49 #ifndef _WIN32
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50 int min;
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51 int max;
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52 int policy;
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53 struct sched_param param;
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54 #endif
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55 uv_thread_t task_id;
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56
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57 /* Verify that passing a NULL pointer returns UV_EINVAL. */
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58 ASSERT_EQ(UV_EINVAL, uv_thread_getpriority(0, NULL));
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59 ASSERT_OK(uv_sem_init(&sem, 1));
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60 uv_sem_wait(&sem);
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61 ASSERT_OK(uv_thread_create(&task_id, simple_task, NULL));
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62 ASSERT_OK(uv_thread_getpriority(task_id, &priority));
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63
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64 #ifdef _WIN32
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65 ASSERT_EQ(priority, THREAD_PRIORITY_NORMAL);
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66 #else
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67 ASSERT_OK(pthread_getschedparam(task_id, &policy, ¶m));
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68 #ifdef __PASE__
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69 min = 1;
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70 max = 127;
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71 #else
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72 min = sched_get_priority_min(policy);
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73 max = sched_get_priority_max(policy);
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74 #endif
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75 ASSERT(priority >= min && priority <= max);
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76 #endif
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77
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78 ASSERT_OK(uv_thread_setpriority(task_id, UV_THREAD_PRIORITY_LOWEST));
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79 ASSERT_OK(uv_thread_getpriority(task_id, &priority));
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80
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81 #ifdef _WIN32
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82 ASSERT_EQ(priority, THREAD_PRIORITY_LOWEST);
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83 #else
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84 ASSERT_EQ(priority, min);
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85 #endif
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86
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87 /**
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88 * test set nice value for the calling thread with default schedule policy
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89 */
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90 #ifdef __linux__
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91 ASSERT_OK(uv_thread_getpriority(pthread_self(), &priority));
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92 ASSERT_EQ(priority, 0);
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93 ASSERT_OK(uv_thread_setpriority(pthread_self(), UV_THREAD_PRIORITY_LOWEST));
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94 ASSERT_OK(uv_thread_getpriority(pthread_self(), &priority));
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95 ASSERT_EQ(priority, (0 - UV_THREAD_PRIORITY_LOWEST * 2));
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96 #endif
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97
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98 uv_sem_post(&sem);
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99
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100 ASSERT_OK(uv_thread_join(&task_id));
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101
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102 uv_sem_destroy(&sem);
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103
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104 return 0;
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105 } |