mirror of
https://github.com/urbit/shrub.git
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137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
/* 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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#include "uv.h"
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#include "task.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#ifndef HAVE_KQUEUE
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# if defined(__APPLE__) || \
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defined(__DragonFly__) || \
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defined(__FreeBSD__) || \
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defined(__OpenBSD__) || \
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defined(__NetBSD__)
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# define HAVE_KQUEUE 1
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# endif
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#endif
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#ifndef HAVE_EPOLL
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# if defined(__linux__)
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# define HAVE_EPOLL 1
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# endif
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#endif
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#if defined(HAVE_KQUEUE) || defined(HAVE_EPOLL)
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#if defined(HAVE_KQUEUE)
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# include <sys/types.h>
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# include <sys/event.h>
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# include <sys/time.h>
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#endif
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#if defined(HAVE_EPOLL)
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# include <sys/epoll.h>
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#endif
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static uv_thread_t embed_thread;
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static uv_sem_t embed_sem;
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static uv_timer_t embed_timer;
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static uv_async_t embed_async;
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static volatile int embed_closed;
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static int embed_timer_called;
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static void embed_thread_runner(void* arg) {
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int r;
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int fd;
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int timeout;
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while (!embed_closed) {
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fd = uv_backend_fd(uv_default_loop());
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timeout = uv_backend_timeout(uv_default_loop());
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do {
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#if defined(HAVE_KQUEUE)
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struct timespec ts;
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ts.tv_sec = timeout / 1000;
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ts.tv_nsec = (timeout % 1000) * 1000000;
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r = kevent(fd, NULL, 0, NULL, 0, &ts);
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#elif defined(HAVE_EPOLL)
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r = epoll_wait(fd, NULL, 0, timeout);
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#endif
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} while (r == -1 && errno == EINTR);
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uv_async_send(&embed_async);
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uv_sem_wait(&embed_sem);
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}
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}
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static void embed_cb(uv_async_t* async, int status) {
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uv_run(uv_default_loop(), UV_RUN_ONCE);
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uv_sem_post(&embed_sem);
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}
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static void embed_timer_cb(uv_timer_t* timer, int status) {
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embed_timer_called++;
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embed_closed = 1;
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uv_close((uv_handle_t*) &embed_async, NULL);
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}
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#endif
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TEST_IMPL(embed) {
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#if defined(HAVE_KQUEUE) || defined(HAVE_EPOLL)
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uv_loop_t* external;
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external = uv_loop_new();
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ASSERT(external != NULL);
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embed_timer_called = 0;
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embed_closed = 0;
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uv_async_init(external, &embed_async, embed_cb);
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/* Start timer in default loop */
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uv_timer_init(uv_default_loop(), &embed_timer);
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uv_timer_start(&embed_timer, embed_timer_cb, 250, 0);
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/* Start worker that will interrupt external loop */
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uv_sem_init(&embed_sem, 0);
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uv_thread_create(&embed_thread, embed_thread_runner, NULL);
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/* But run external loop */
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uv_run(external, UV_RUN_DEFAULT);
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uv_thread_join(&embed_thread);
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uv_loop_delete(external);
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ASSERT(embed_timer_called == 1);
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#endif
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return 0;
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}
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