mirror of https://github.com/lukechilds/node.git
Bert Belder
12 years ago
82 changed files with 856 additions and 210 deletions
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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to |
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* deal in the Software without restriction, including without limitation the |
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
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* sell copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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* IN THE SOFTWARE. |
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*/ |
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/* This test does not pretend to be cross-platform. */ |
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#ifndef _WIN32 |
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#include "uv.h" |
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#include "task.h" |
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#include <errno.h> |
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#include <signal.h> |
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#include <stdarg.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#define NUM_SIGNAL_HANDLING_THREADS 25 |
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#define NUM_LOOP_CREATING_THREADS 10 |
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static uv_sem_t sem; |
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static uv_mutex_t counter_lock; |
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static volatile int stop = 0; |
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static volatile int signal1_cb_counter = 0; |
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static volatile int signal2_cb_counter = 0; |
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static volatile int loop_creation_counter = 0; |
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static void increment_counter(volatile int* counter) { |
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uv_mutex_lock(&counter_lock); |
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++(*counter); |
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uv_mutex_unlock(&counter_lock); |
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} |
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static void signal1_cb(uv_signal_t* handle, int signum) { |
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ASSERT(signum == SIGUSR1); |
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increment_counter(&signal1_cb_counter); |
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uv_signal_stop(handle); |
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} |
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static void signal2_cb(uv_signal_t* handle, int signum) { |
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ASSERT(signum == SIGUSR2); |
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increment_counter(&signal2_cb_counter); |
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uv_signal_stop(handle); |
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} |
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static void signal_handling_worker(void* context) { |
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uintptr_t mask = (uintptr_t) context; |
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uv_loop_t* loop; |
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uv_signal_t signal1a; |
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uv_signal_t signal1b; |
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uv_signal_t signal2; |
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int r; |
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loop = uv_loop_new(); |
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ASSERT(loop != NULL); |
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/* Setup the signal watchers and start them. */ |
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if (mask & SIGUSR1) { |
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r = uv_signal_init(loop, &signal1a); |
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ASSERT(r == 0); |
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r = uv_signal_start(&signal1a, signal1_cb, SIGUSR1); |
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ASSERT(r == 0); |
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r = uv_signal_init(loop, &signal1b); |
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ASSERT(r == 0); |
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r = uv_signal_start(&signal1b, signal1_cb, SIGUSR1); |
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ASSERT(r == 0); |
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} |
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if (mask & SIGUSR2) { |
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r = uv_signal_init(loop, &signal2); |
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ASSERT(r == 0); |
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r = uv_signal_start(&signal2, signal2_cb, SIGUSR2); |
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ASSERT(r == 0); |
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} |
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/* Signal watchers are now set up. */ |
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uv_sem_post(&sem); |
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/* Wait for all signals. The signal callbacks stop the watcher, so uv_run
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* will return when all signal watchers caught a signal. |
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*/ |
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r = uv_run(loop); |
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ASSERT(r == 0); |
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/* Restart the signal watchers. */ |
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if (mask & SIGUSR1) { |
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r = uv_signal_start(&signal1a, signal1_cb, SIGUSR1); |
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ASSERT(r == 0); |
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r = uv_signal_start(&signal1b, signal1_cb, SIGUSR1); |
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ASSERT(r == 0); |
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} |
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if (mask & SIGUSR2) { |
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r = uv_signal_start(&signal2, signal2_cb, SIGUSR2); |
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ASSERT(r == 0); |
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} |
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/* Wait for signals once more. */ |
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uv_sem_post(&sem); |
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r = uv_run(loop); |
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ASSERT(r == 0); |
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/* Close the watchers. */ |
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if (mask & SIGUSR1) { |
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uv_close((uv_handle_t*) &signal1a, NULL); |
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uv_close((uv_handle_t*) &signal1b, NULL); |
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} |
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if (mask & SIGUSR2) { |
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uv_close((uv_handle_t*) &signal2, NULL); |
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} |
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/* Wait for the signal watchers to close. */ |
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r = uv_run(loop); |
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ASSERT(r == 0); |
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uv_loop_delete(loop); |
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} |
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static void signal_unexpected_cb(uv_signal_t* handle, int signum) { |
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ASSERT(0 && "signal_unexpected_cb should never be called"); |
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} |
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static void loop_creating_worker(void* context) { |
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(void) context; |
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do { |
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uv_loop_t* loop; |
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uv_signal_t signal; |
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int r; |
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loop = uv_loop_new(); |
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ASSERT(loop != NULL); |
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r = uv_signal_init(loop, &signal); |
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ASSERT(r == 0); |
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r = uv_signal_start(&signal, signal_unexpected_cb, SIGTERM); |
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ASSERT(r == 0); |
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uv_close((uv_handle_t*) &signal, NULL); |
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r = uv_run(loop); |
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ASSERT(r == 0); |
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uv_loop_delete(loop); |
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increment_counter(&loop_creation_counter); |
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} while (!stop); |
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} |
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TEST_IMPL(signal_multiple_loops) { |
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int i, r; |
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uv_thread_t loop_creating_threads[NUM_LOOP_CREATING_THREADS]; |
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uv_thread_t signal_handling_threads[NUM_SIGNAL_HANDLING_THREADS]; |
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sigset_t sigset; |
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r = uv_sem_init(&sem, 0); |
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ASSERT(r == 0); |
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r = uv_mutex_init(&counter_lock); |
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ASSERT(r == 0); |
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/* Create a couple of threads that create a destroy loops continuously. */ |
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for (i = 0; i < NUM_LOOP_CREATING_THREADS; i++) { |
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r = uv_thread_create(&loop_creating_threads[i], |
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loop_creating_worker, |
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NULL); |
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ASSERT(r == 0); |
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} |
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/* Create a couple of threads that actually handle signals. */ |
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for (i = 0; i < NUM_SIGNAL_HANDLING_THREADS; i++) { |
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uintptr_t mask; |
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switch (i % 3) { |
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case 0: mask = SIGUSR1; break; |
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case 1: mask = SIGUSR2; break; |
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case 2: mask = SIGUSR1 | SIGUSR2; break; |
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} |
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r = uv_thread_create(&signal_handling_threads[i], |
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signal_handling_worker, |
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(void*) mask); |
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ASSERT(r == 0); |
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} |
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/* Wait until all threads have started and set up their signal watchers. */ |
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for (i = 0; i < NUM_SIGNAL_HANDLING_THREADS; i++) |
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uv_sem_wait(&sem); |
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r = kill(getpid(), SIGUSR1); |
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ASSERT(r == 0); |
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r = kill(getpid(), SIGUSR2); |
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ASSERT(r == 0); |
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/* Wait for all threads to handle these signals. */ |
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for (i = 0; i < NUM_SIGNAL_HANDLING_THREADS; i++) |
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uv_sem_wait(&sem); |
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/* Block all signals to this thread, so we are sure that from here the signal
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* handler runs in another thread. This is is more likely to catch thread and |
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* signal safety issues if there are any. |
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*/ |
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sigfillset(&sigset); |
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pthread_sigmask(SIG_SETMASK, &sigset, NULL); |
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r = kill(getpid(), SIGUSR1); |
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ASSERT(r == 0); |
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r = kill(getpid(), SIGUSR2); |
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ASSERT(r == 0); |
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/* Wait for all signal handling threads to exit. */ |
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for (i = 0; i < NUM_SIGNAL_HANDLING_THREADS; i++) { |
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r = uv_thread_join(&signal_handling_threads[i]); |
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ASSERT(r == 0); |
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} |
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/* Tell all loop creating threads to stop. */ |
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stop = 1; |
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/* Wait for all loop creating threads to exit. */ |
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for (i = 0; i < NUM_LOOP_CREATING_THREADS; i++) { |
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r = uv_thread_join(&loop_creating_threads[i]); |
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ASSERT(r == 0); |
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} |
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printf("signal1_cb calls: %d\n", signal1_cb_counter); |
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printf("signal2_cb calls: %d\n", signal2_cb_counter); |
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printf("loops created and destroyed: %d\n", loop_creation_counter); |
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ASSERT(signal1_cb_counter == 4 * NUM_SIGNAL_HANDLING_THREADS); |
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ASSERT(signal2_cb_counter == 2 * NUM_SIGNAL_HANDLING_THREADS); |
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/* We don't know exactly how much loops will be created and destroyed, but at
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* least there should be 1 for every loop creating thread. |
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*/ |
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ASSERT(loop_creation_counter >= NUM_LOOP_CREATING_THREADS); |
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MAKE_VALGRIND_HAPPY(); |
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return 0; |
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} |
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#endif /* !_WIN32 */ |
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