diff options
Diffstat (limited to '3rdparty/libuv/test/test-signal-multiple-loops.c')
-rw-r--r-- | 3rdparty/libuv/test/test-signal-multiple-loops.c | 290 |
1 files changed, 0 insertions, 290 deletions
diff --git a/3rdparty/libuv/test/test-signal-multiple-loops.c b/3rdparty/libuv/test/test-signal-multiple-loops.c deleted file mode 100644 index 158129919bd..00000000000 --- a/3rdparty/libuv/test/test-signal-multiple-loops.c +++ /dev/null @@ -1,290 +0,0 @@ -/* Copyright Joyent, Inc. and other Node 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. - */ - - -/* This test does not pretend to be cross-platform. */ -#ifndef _WIN32 - -#include "uv.h" -#include "task.h" - -#include <errno.h> -#include <signal.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -/* The value of NUM_SIGNAL_HANDLING_THREADS is not arbitrary; it needs to be a - * multiple of three for reasons that will become clear when you scroll down. - * We're basically creating three different thread groups. The total needs - * to be divisible by three in order for the numbers in the final check to - * match up. - */ -#define NUM_SIGNAL_HANDLING_THREADS 24 -#define NUM_LOOP_CREATING_THREADS 10 - -enum signal_action { - ONLY_SIGUSR1, - ONLY_SIGUSR2, - SIGUSR1_AND_SIGUSR2 -}; - -static uv_sem_t sem; -static uv_mutex_t counter_lock; -static volatile int stop = 0; - -static volatile int signal1_cb_counter = 0; -static volatile int signal2_cb_counter = 0; -static volatile int loop_creation_counter = 0; - - -static void increment_counter(volatile int* counter) { - uv_mutex_lock(&counter_lock); - ++(*counter); - uv_mutex_unlock(&counter_lock); -} - - -static void signal1_cb(uv_signal_t* handle, int signum) { - ASSERT(signum == SIGUSR1); - increment_counter(&signal1_cb_counter); - uv_signal_stop(handle); -} - - -static void signal2_cb(uv_signal_t* handle, int signum) { - ASSERT(signum == SIGUSR2); - increment_counter(&signal2_cb_counter); - uv_signal_stop(handle); -} - - -static void signal_handling_worker(void* context) { - enum signal_action action; - uv_signal_t signal1a; - uv_signal_t signal1b; - uv_signal_t signal2; - uv_loop_t loop; - int r; - - action = (enum signal_action) (uintptr_t) context; - - ASSERT(0 == uv_loop_init(&loop)); - - /* Setup the signal watchers and start them. */ - if (action == ONLY_SIGUSR1 || action == SIGUSR1_AND_SIGUSR2) { - r = uv_signal_init(&loop, &signal1a); - ASSERT(r == 0); - r = uv_signal_start(&signal1a, signal1_cb, SIGUSR1); - ASSERT(r == 0); - r = uv_signal_init(&loop, &signal1b); - ASSERT(r == 0); - r = uv_signal_start(&signal1b, signal1_cb, SIGUSR1); - ASSERT(r == 0); - } - - if (action == ONLY_SIGUSR2 || action == SIGUSR1_AND_SIGUSR2) { - r = uv_signal_init(&loop, &signal2); - ASSERT(r == 0); - r = uv_signal_start(&signal2, signal2_cb, SIGUSR2); - ASSERT(r == 0); - } - - /* Signal watchers are now set up. */ - uv_sem_post(&sem); - - /* Wait for all signals. The signal callbacks stop the watcher, so uv_run - * will return when all signal watchers caught a signal. - */ - r = uv_run(&loop, UV_RUN_DEFAULT); - ASSERT(r == 0); - - /* Restart the signal watchers. */ - if (action == ONLY_SIGUSR1 || action == SIGUSR1_AND_SIGUSR2) { - r = uv_signal_start(&signal1a, signal1_cb, SIGUSR1); - ASSERT(r == 0); - r = uv_signal_start(&signal1b, signal1_cb, SIGUSR1); - ASSERT(r == 0); - } - - if (action == ONLY_SIGUSR2 || action == SIGUSR1_AND_SIGUSR2) { - r = uv_signal_start(&signal2, signal2_cb, SIGUSR2); - ASSERT(r == 0); - } - - /* Wait for signals once more. */ - uv_sem_post(&sem); - - r = uv_run(&loop, UV_RUN_DEFAULT); - ASSERT(r == 0); - - /* Close the watchers. */ - if (action == ONLY_SIGUSR1 || action == SIGUSR1_AND_SIGUSR2) { - uv_close((uv_handle_t*) &signal1a, NULL); - uv_close((uv_handle_t*) &signal1b, NULL); - } - - if (action == ONLY_SIGUSR2 || action == SIGUSR1_AND_SIGUSR2) { - uv_close((uv_handle_t*) &signal2, NULL); - } - - /* Wait for the signal watchers to close. */ - r = uv_run(&loop, UV_RUN_DEFAULT); - ASSERT(r == 0); - - uv_loop_close(&loop); -} - - -static void signal_unexpected_cb(uv_signal_t* handle, int signum) { - ASSERT(0 && "signal_unexpected_cb should never be called"); -} - - -static void loop_creating_worker(void* context) { - (void) context; - - do { - uv_loop_t *loop; - uv_signal_t signal; - int r; - - loop = malloc(sizeof(*loop)); - ASSERT(loop != NULL); - ASSERT(0 == uv_loop_init(loop)); - - r = uv_signal_init(loop, &signal); - ASSERT(r == 0); - - r = uv_signal_start(&signal, signal_unexpected_cb, SIGTERM); - ASSERT(r == 0); - - uv_close((uv_handle_t*) &signal, NULL); - - r = uv_run(loop, UV_RUN_DEFAULT); - ASSERT(r == 0); - - uv_loop_close(loop); - free(loop); - - increment_counter(&loop_creation_counter); - } while (!stop); -} - - -TEST_IMPL(signal_multiple_loops) { - uv_thread_t loop_creating_threads[NUM_LOOP_CREATING_THREADS]; - uv_thread_t signal_handling_threads[NUM_SIGNAL_HANDLING_THREADS]; - enum signal_action action; - sigset_t sigset; - int i; - int r; - - r = uv_sem_init(&sem, 0); - ASSERT(r == 0); - - r = uv_mutex_init(&counter_lock); - ASSERT(r == 0); - - /* Create a couple of threads that create a destroy loops continuously. */ - for (i = 0; i < NUM_LOOP_CREATING_THREADS; i++) { - r = uv_thread_create(&loop_creating_threads[i], - loop_creating_worker, - NULL); - ASSERT(r == 0); - } - - /* Create a couple of threads that actually handle signals. */ - for (i = 0; i < NUM_SIGNAL_HANDLING_THREADS; i++) { - switch (i % 3) { - case 0: action = ONLY_SIGUSR1; break; - case 1: action = ONLY_SIGUSR2; break; - case 2: action = SIGUSR1_AND_SIGUSR2; break; - } - - r = uv_thread_create(&signal_handling_threads[i], - signal_handling_worker, - (void*) (uintptr_t) action); - ASSERT(r == 0); - } - - /* Wait until all threads have started and set up their signal watchers. */ - for (i = 0; i < NUM_SIGNAL_HANDLING_THREADS; i++) - uv_sem_wait(&sem); - - r = kill(getpid(), SIGUSR1); - ASSERT(r == 0); - r = kill(getpid(), SIGUSR2); - ASSERT(r == 0); - - /* Wait for all threads to handle these signals. */ - for (i = 0; i < NUM_SIGNAL_HANDLING_THREADS; i++) - uv_sem_wait(&sem); - - /* Block all signals to this thread, so we are sure that from here the signal - * handler runs in another thread. This is is more likely to catch thread and - * signal safety issues if there are any. - */ - sigfillset(&sigset); - pthread_sigmask(SIG_SETMASK, &sigset, NULL); - - r = kill(getpid(), SIGUSR1); - ASSERT(r == 0); - r = kill(getpid(), SIGUSR2); - ASSERT(r == 0); - - /* Wait for all signal handling threads to exit. */ - for (i = 0; i < NUM_SIGNAL_HANDLING_THREADS; i++) { - r = uv_thread_join(&signal_handling_threads[i]); - ASSERT(r == 0); - } - - /* Tell all loop creating threads to stop. */ - stop = 1; - - /* Wait for all loop creating threads to exit. */ - for (i = 0; i < NUM_LOOP_CREATING_THREADS; i++) { - r = uv_thread_join(&loop_creating_threads[i]); - ASSERT(r == 0); - } - - printf("signal1_cb calls: %d\n", signal1_cb_counter); - printf("signal2_cb calls: %d\n", signal2_cb_counter); - printf("loops created and destroyed: %d\n", loop_creation_counter); - - /* The division by three reflects the fact that we spawn three different - * thread groups of (NUM_SIGNAL_HANDLING_THREADS / 3) threads each. - */ - ASSERT(signal1_cb_counter == 8 * (NUM_SIGNAL_HANDLING_THREADS / 3)); - ASSERT(signal2_cb_counter == 4 * (NUM_SIGNAL_HANDLING_THREADS / 3)); - - /* We don't know exactly how much loops will be created and destroyed, but at - * least there should be 1 for every loop creating thread. - */ - ASSERT(loop_creation_counter >= NUM_LOOP_CREATING_THREADS); - - MAKE_VALGRIND_HAPPY(); - return 0; -} - -#endif /* !_WIN32 */ |