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/* Copyright libuv project contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "uv.h"
#include "task.h"
#include "../src/uv-common.h"
#include <string.h>
struct semaphores {
uv_sem_t main;
uv_sem_t worker;
};
static void thread_run(void* arg) {
int r;
char thread_name[16];
struct semaphores* sem;
uv_thread_t thread;
sem = arg;
#ifdef _WIN32
/* uv_thread_self isn't defined for the main thread on Windows. */
thread = GetCurrentThread();
#else
thread = uv_thread_self();
#endif
r = uv_thread_setname("worker-thread");
ASSERT_OK(r);
uv_sem_post(&sem->worker);
r = uv_thread_getname(&thread, thread_name, sizeof(thread_name));
ASSERT_OK(r);
ASSERT_STR_EQ(thread_name, "worker-thread");
uv_sem_wait(&sem->main);
}
TEST_IMPL(thread_name) {
int r;
uv_thread_t threads[2];
char tn[UV_PTHREAD_MAX_NAMELEN_NP];
char thread_name[UV_PTHREAD_MAX_NAMELEN_NP];
char long_thread_name[UV_PTHREAD_MAX_NAMELEN_NP + 1];
struct semaphores sem;
#if defined(__ANDROID_API__) && __ANDROID_API__ < 26 || \
defined(_AIX) || \
defined(__MVS__) || \
defined(__PASE__)
RETURN_SKIP("API not available on this platform");
#endif
ASSERT_OK(uv_sem_init(&sem.main, 0));
ASSERT_OK(uv_sem_init(&sem.worker, 0));
memset(thread_name, 'a', sizeof(thread_name) - 1);
thread_name[sizeof(thread_name) - 1] = '\0';
memset(long_thread_name, 'a', sizeof(long_thread_name) - 1);
long_thread_name[sizeof(long_thread_name) - 1] = '\0';
#ifdef _WIN32
/* uv_thread_self isn't defined for the main thread on Windows. */
threads[0] = GetCurrentThread();
#else
threads[0] = uv_thread_self();
#endif
r = uv_thread_getname(&threads[0], tn, sizeof(tn));
ASSERT_OK(r);
r = uv_thread_setname(long_thread_name);
ASSERT_OK(r);
r = uv_thread_getname(&threads[0], tn, sizeof(tn));
ASSERT_OK(r);
ASSERT_STR_EQ(tn, thread_name);
r = uv_thread_setname(thread_name);
ASSERT_OK(r);
r = uv_thread_getname(&threads[0], tn, sizeof(tn));
ASSERT_OK(r);
ASSERT_STR_EQ(tn, thread_name);
r = uv_thread_getname(&threads[0], tn, 3);
ASSERT_OK(r);
ASSERT_EQ(strlen(tn), 2);
ASSERT_OK(memcmp(thread_name, tn, 2));
/* Illumos doesn't support non-ASCII thread names. */
#ifndef __illumos__
r = uv_thread_setname("~½¬{½");
ASSERT_OK(r);
r = uv_thread_getname(&threads[0], tn, sizeof(tn));
ASSERT_OK(r);
ASSERT_STR_EQ(tn, "~½¬{½");
#endif
ASSERT_OK(uv_thread_create(threads + 1, thread_run, &sem));
uv_sem_wait(&sem.worker);
r = uv_thread_getname(threads + 1, tn, sizeof(tn));
ASSERT_OK(r);
ASSERT_STR_EQ(tn, "worker-thread");
uv_sem_post(&sem.main);
ASSERT_OK(uv_thread_join(threads + 1));
uv_sem_destroy(&sem.main);
uv_sem_destroy(&sem.worker);
return 0;
}
#define MAX_THREADS 4
static void* executedThreads[MAX_THREADS] = { NULL };
static int size;
static uv_loop_t* loop;
static unsigned short int key_exists(void* key) {
size_t i;
for (i = 0; i < MAX_THREADS; i++) {
if (executedThreads[i] == key) {
return 1;
}
}
return 0;
}
static void work_cb(uv_work_t* req) {
uv_thread_t thread = uv_thread_self();
req->data = &thread;
char tn[UV_PTHREAD_MAX_NAMELEN_NP];
ASSERT_OK(uv_thread_getname(&thread, tn, sizeof(tn)));
ASSERT_STR_EQ(tn, "libuv-worker");
}
static void after_work_cb(uv_work_t* req, int status) {
ASSERT_OK(status);
if (!key_exists(req->data)) {
executedThreads[size++] = req->data;
}
if (size == MAX_THREADS) {
return;
}
uv_queue_work(loop, req, work_cb, after_work_cb);
}
TEST_IMPL(thread_name_threadpool) {
#if defined(_AIX) || defined(__PASE__)
RETURN_SKIP("API not available on this platform");
#endif
uv_work_t req;
loop = uv_default_loop();
// Just to make sure all workers will be executed
// with the correct thread name
ASSERT_OK(uv_queue_work(loop, &req, work_cb, after_work_cb));
uv_run(loop, UV_RUN_DEFAULT);
MAKE_VALGRIND_HAPPY(uv_default_loop());
return 0;
}
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