1 /* Copyright libuv project 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 #include "../src/uv-common.h"
25
26 #include <string.h>
27
28 struct semaphores {
29 uv_sem_t main;
30 uv_sem_t worker;
31 };
32
thread_run(void * arg)33 static void thread_run(void* arg) {
34 int r;
35 char thread_name[16];
36 struct semaphores* sem;
37 uv_thread_t thread;
38
39 sem = arg;
40
41 #ifdef _WIN32
42 /* uv_thread_self isn't defined for the main thread on Windows. */
43 thread = GetCurrentThread();
44 #else
45 thread = uv_thread_self();
46 #endif
47
48 r = uv_thread_setname("worker-thread");
49 ASSERT_OK(r);
50
51 uv_sem_post(&sem->worker);
52
53 r = uv_thread_getname(&thread, thread_name, sizeof(thread_name));
54 ASSERT_OK(r);
55
56 ASSERT_STR_EQ(thread_name, "worker-thread");
57
58 uv_sem_wait(&sem->main);
59 }
60
TEST_IMPL(thread_name)61 TEST_IMPL(thread_name) {
62 int r;
63 uv_thread_t threads[2];
64 char tn[UV_PTHREAD_MAX_NAMELEN_NP];
65 char thread_name[UV_PTHREAD_MAX_NAMELEN_NP];
66 char long_thread_name[UV_PTHREAD_MAX_NAMELEN_NP + 1];
67 struct semaphores sem;
68
69 #if defined(__ANDROID_API__) && __ANDROID_API__ < 26 || \
70 defined(_AIX) || \
71 defined(__MVS__) || \
72 defined(__PASE__)
73 RETURN_SKIP("API not available on this platform");
74 #endif
75
76 ASSERT_OK(uv_sem_init(&sem.main, 0));
77 ASSERT_OK(uv_sem_init(&sem.worker, 0));
78
79 memset(thread_name, 'a', sizeof(thread_name) - 1);
80 thread_name[sizeof(thread_name) - 1] = '\0';
81
82 memset(long_thread_name, 'a', sizeof(long_thread_name) - 1);
83 long_thread_name[sizeof(long_thread_name) - 1] = '\0';
84
85 #ifdef _WIN32
86 /* uv_thread_self isn't defined for the main thread on Windows. */
87 threads[0] = GetCurrentThread();
88 #else
89 threads[0] = uv_thread_self();
90 #endif
91
92 r = uv_thread_getname(&threads[0], tn, sizeof(tn));
93 ASSERT_OK(r);
94
95 r = uv_thread_setname(long_thread_name);
96 ASSERT_OK(r);
97
98 r = uv_thread_getname(&threads[0], tn, sizeof(tn));
99 ASSERT_OK(r);
100 ASSERT_STR_EQ(tn, thread_name);
101
102 r = uv_thread_setname(thread_name);
103 ASSERT_OK(r);
104
105 r = uv_thread_getname(&threads[0], tn, sizeof(tn));
106 ASSERT_OK(r);
107 ASSERT_STR_EQ(tn, thread_name);
108
109 r = uv_thread_getname(&threads[0], tn, 3);
110 ASSERT_OK(r);
111 ASSERT_EQ(strlen(tn), 2);
112 ASSERT_OK(memcmp(thread_name, tn, 2));
113
114 /* Illumos doesn't support non-ASCII thread names. */
115 #ifndef __illumos__
116 r = uv_thread_setname("~½¬{½");
117 ASSERT_OK(r);
118
119 r = uv_thread_getname(&threads[0], tn, sizeof(tn));
120 ASSERT_OK(r);
121 ASSERT_STR_EQ(tn, "~½¬{½");
122 #endif
123
124 ASSERT_OK(uv_thread_create(threads + 1, thread_run, &sem));
125
126 uv_sem_wait(&sem.worker);
127
128 r = uv_thread_getname(threads + 1, tn, sizeof(tn));
129 ASSERT_OK(r);
130
131 ASSERT_STR_EQ(tn, "worker-thread");
132
133 uv_sem_post(&sem.main);
134
135 ASSERT_OK(uv_thread_join(threads + 1));
136
137 uv_sem_destroy(&sem.main);
138 uv_sem_destroy(&sem.worker);
139
140 return 0;
141 }
142
