Skip to content
Fetching contributors…
Cannot retrieve contributors at this time
360 lines (276 sloc) 10 KB
/* 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.
*/
#include "uv.h"
#include "task.h"
#define INIT_CANCEL_INFO(ci, what) \
do { \
(ci)->reqs = (what); \
(ci)->nreqs = ARRAY_SIZE(what); \
(ci)->stride = sizeof((what)[0]); \
} \
while (0)
struct cancel_info {
void* reqs;
unsigned nreqs;
unsigned stride;
uv_timer_t timer_handle;
};
static uv_cond_t signal_cond;
static uv_mutex_t signal_mutex;
static uv_mutex_t wait_mutex;
static unsigned num_threads;
static unsigned fs_cb_called;
static unsigned work_cb_called;
static unsigned done_cb_called;
static unsigned done2_cb_called;
static unsigned timer_cb_called;
static void work_cb(uv_work_t* req) {
uv_mutex_lock(&signal_mutex);
uv_cond_signal(&signal_cond);
uv_mutex_unlock(&signal_mutex);
uv_mutex_lock(&wait_mutex);
uv_mutex_unlock(&wait_mutex);
work_cb_called++;
}
static void done_cb(uv_work_t* req, int status) {
done_cb_called++;
free(req);
}
static void saturate_threadpool(void) {
uv_work_t* req;
ASSERT(0 == uv_cond_init(&signal_cond));
ASSERT(0 == uv_mutex_init(&signal_mutex));
ASSERT(0 == uv_mutex_init(&wait_mutex));
uv_mutex_lock(&signal_mutex);
uv_mutex_lock(&wait_mutex);
for (num_threads = 0; /* empty */; num_threads++) {
req = malloc(sizeof(*req));
ASSERT(req != NULL);
ASSERT(0 == uv_queue_work(uv_default_loop(), req, work_cb, done_cb));
/* Expect to get signalled within 350 ms, otherwise assume that
* the thread pool is saturated. As with any timing dependent test,
* this is obviously not ideal.
*/
if (uv_cond_timedwait(&signal_cond,
&signal_mutex,
(uint64_t) (350 * 1e6))) {
ASSERT(0 == uv_cancel((uv_req_t*) req));
break;
}
}
}
static void unblock_threadpool(void) {
uv_mutex_unlock(&signal_mutex);
uv_mutex_unlock(&wait_mutex);
}
static void cleanup_threadpool(void) {
ASSERT(done_cb_called == num_threads + 1); /* +1 == cancelled work req. */
ASSERT(work_cb_called == num_threads);
uv_cond_destroy(&signal_cond);
uv_mutex_destroy(&signal_mutex);
uv_mutex_destroy(&wait_mutex);
}
static void fs_cb(uv_fs_t* req) {
ASSERT(req->result == UV_ECANCELED);
uv_fs_req_cleanup(req);
fs_cb_called++;
}
static void getaddrinfo_cb(uv_getaddrinfo_t* req,
int status,
struct addrinfo* res) {
ASSERT(status == UV_EAI_CANCELED);
ASSERT(res == NULL);
uv_freeaddrinfo(res); /* Should not crash. */
}
static void getnameinfo_cb(uv_getnameinfo_t* handle,
int status,
const char* hostname,
const char* service) {
ASSERT(status == UV_EAI_CANCELED);
ASSERT(hostname == NULL);
ASSERT(service == NULL);
}
static void work2_cb(uv_work_t* req) {
ASSERT(0 && "work2_cb called");
}
static void done2_cb(uv_work_t* req, int status) {
ASSERT(status == UV_ECANCELED);
done2_cb_called++;
}
static void timer_cb(uv_timer_t* handle) {
struct cancel_info* ci;
uv_req_t* req;
unsigned i;
ci = container_of(handle, struct cancel_info, timer_handle);
for (i = 0; i < ci->nreqs; i++) {
req = (uv_req_t*) ((char*) ci->reqs + i * ci->stride);
ASSERT(0 == uv_cancel(req));
}
uv_close((uv_handle_t*) &ci->timer_handle, NULL);
unblock_threadpool();
timer_cb_called++;
}
static void nop_work_cb(uv_work_t* req) {
}
static void nop_done_cb(uv_work_t* req, int status) {
req->data = "OK";
}
TEST_IMPL(threadpool_cancel_getaddrinfo) {
uv_getaddrinfo_t reqs[4];
struct cancel_info ci;
struct addrinfo hints;
uv_loop_t* loop;
int r;
INIT_CANCEL_INFO(&ci, reqs);
loop = uv_default_loop();
saturate_threadpool();
r = uv_getaddrinfo(loop, reqs + 0, getaddrinfo_cb, "fail", NULL, NULL);
ASSERT(r == 0);
r = uv_getaddrinfo(loop, reqs + 1, getaddrinfo_cb, NULL, "fail", NULL);
ASSERT(r == 0);
r = uv_getaddrinfo(loop, reqs + 2, getaddrinfo_cb, "fail", "fail", NULL);
ASSERT(r == 0);
r = uv_getaddrinfo(loop, reqs + 3, getaddrinfo_cb, "fail", NULL, &hints);
ASSERT(r == 0);
ASSERT(0 == uv_timer_init(loop, &ci.timer_handle));
ASSERT(0 == uv_timer_start(&ci.timer_handle, timer_cb, 10, 0));
ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
ASSERT(1 == timer_cb_called);
cleanup_threadpool();
MAKE_VALGRIND_HAPPY();
return 0;
}
TEST_IMPL(threadpool_cancel_getnameinfo) {
uv_getnameinfo_t reqs[4];
struct sockaddr_in addr4;
struct cancel_info ci;
uv_loop_t* loop;
int r;
r = uv_ip4_addr("127.0.0.1", 80, &addr4);
ASSERT(r == 0);
INIT_CANCEL_INFO(&ci, reqs);
loop = uv_default_loop();
saturate_threadpool();
r = uv_getnameinfo(loop, reqs + 0, getnameinfo_cb, (const struct sockaddr*)&addr4, 0);
ASSERT(r == 0);
r = uv_getnameinfo(loop, reqs + 1, getnameinfo_cb, (const struct sockaddr*)&addr4, 0);
ASSERT(r == 0);
r = uv_getnameinfo(loop, reqs + 2, getnameinfo_cb, (const struct sockaddr*)&addr4, 0);
ASSERT(r == 0);
r = uv_getnameinfo(loop, reqs + 3, getnameinfo_cb, (const struct sockaddr*)&addr4, 0);
ASSERT(r == 0);
ASSERT(0 == uv_timer_init(loop, &ci.timer_handle));
ASSERT(0 == uv_timer_start(&ci.timer_handle, timer_cb, 10, 0));
ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
ASSERT(1 == timer_cb_called);
cleanup_threadpool();
MAKE_VALGRIND_HAPPY();
return 0;
}
TEST_IMPL(threadpool_cancel_work) {
struct cancel_info ci;
uv_work_t reqs[16];
uv_loop_t* loop;
unsigned i;
INIT_CANCEL_INFO(&ci, reqs);
loop = uv_default_loop();
saturate_threadpool();
for (i = 0; i < ARRAY_SIZE(reqs); i++)
ASSERT(0 == uv_queue_work(loop, reqs + i, work2_cb, done2_cb));
ASSERT(0 == uv_timer_init(loop, &ci.timer_handle));
ASSERT(0 == uv_timer_start(&ci.timer_handle, timer_cb, 10, 0));
ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
ASSERT(1 == timer_cb_called);
ASSERT(ARRAY_SIZE(reqs) == done2_cb_called);
cleanup_threadpool();
MAKE_VALGRIND_HAPPY();
return 0;
}
TEST_IMPL(threadpool_cancel_fs) {
struct cancel_info ci;
uv_fs_t reqs[25];
uv_loop_t* loop;
unsigned n;
INIT_CANCEL_INFO(&ci, reqs);
loop = uv_default_loop();
saturate_threadpool();
/* Needs to match ARRAY_SIZE(fs_reqs). */
n = 0;
ASSERT(0 == uv_fs_chmod(loop, reqs + n++, "/", 0, fs_cb));
ASSERT(0 == uv_fs_chown(loop, reqs + n++, "/", 0, 0, fs_cb));
ASSERT(0 == uv_fs_close(loop, reqs + n++, 0, fs_cb));
ASSERT(0 == uv_fs_fchmod(loop, reqs + n++, 0, 0, fs_cb));
ASSERT(0 == uv_fs_fchown(loop, reqs + n++, 0, 0, 0, fs_cb));
ASSERT(0 == uv_fs_fdatasync(loop, reqs + n++, 0, fs_cb));
ASSERT(0 == uv_fs_fstat(loop, reqs + n++, 0, fs_cb));
ASSERT(0 == uv_fs_fsync(loop, reqs + n++, 0, fs_cb));
ASSERT(0 == uv_fs_ftruncate(loop, reqs + n++, 0, 0, fs_cb));
ASSERT(0 == uv_fs_futime(loop, reqs + n++, 0, 0, 0, fs_cb));
ASSERT(0 == uv_fs_link(loop, reqs + n++, "/", "/", fs_cb));
ASSERT(0 == uv_fs_lstat(loop, reqs + n++, "/", fs_cb));
ASSERT(0 == uv_fs_mkdir(loop, reqs + n++, "/", 0, fs_cb));
ASSERT(0 == uv_fs_open(loop, reqs + n++, "/", 0, 0, fs_cb));
ASSERT(0 == uv_fs_read(loop, reqs + n++, 0, NULL, 0, 0, fs_cb));
ASSERT(0 == uv_fs_scandir(loop, reqs + n++, "/", 0, fs_cb));
ASSERT(0 == uv_fs_readlink(loop, reqs + n++, "/", fs_cb));
ASSERT(0 == uv_fs_rename(loop, reqs + n++, "/", "/", fs_cb));
ASSERT(0 == uv_fs_mkdir(loop, reqs + n++, "/", 0, fs_cb));
ASSERT(0 == uv_fs_sendfile(loop, reqs + n++, 0, 0, 0, 0, fs_cb));
ASSERT(0 == uv_fs_stat(loop, reqs + n++, "/", fs_cb));
ASSERT(0 == uv_fs_symlink(loop, reqs + n++, "/", "/", 0, fs_cb));
ASSERT(0 == uv_fs_unlink(loop, reqs + n++, "/", fs_cb));
ASSERT(0 == uv_fs_utime(loop, reqs + n++, "/", 0, 0, fs_cb));
ASSERT(0 == uv_fs_write(loop, reqs + n++, 0, NULL, 0, 0, fs_cb));
ASSERT(n == ARRAY_SIZE(reqs));
ASSERT(0 == uv_timer_init(loop, &ci.timer_handle));
ASSERT(0 == uv_timer_start(&ci.timer_handle, timer_cb, 10, 0));
ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
ASSERT(n == fs_cb_called);
ASSERT(1 == timer_cb_called);
cleanup_threadpool();
MAKE_VALGRIND_HAPPY();
return 0;
}
TEST_IMPL(threadpool_cancel_single) {
uv_loop_t* loop;
uv_work_t req;
int cancelled;
int i;
loop = uv_default_loop();
for (i = 0; i < 5000; i++) {
req.data = NULL;
ASSERT(0 == uv_queue_work(loop, &req, nop_work_cb, nop_done_cb));
cancelled = uv_cancel((uv_req_t*) &req);
if (cancelled == 0)
break;
ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
}
if (cancelled != 0) {
fputs("Failed to cancel a work req in 5,000 iterations, giving up.\n",
stderr);
return 1;
}
ASSERT(req.data == NULL);
ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
ASSERT(req.data != NULL); /* Should have been updated by nop_done_cb(). */
MAKE_VALGRIND_HAPPY();
return 0;
}
Something went wrong with that request. Please try again.