pipewire/test/test-loop.c

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2022-09-01 16:14:06 +08:00
/* PipeWire
*
* Copyright © 2022 Wim Taymans <wim.taymans@gmail.com>
*
* 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 (including the next
* paragraph) 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 <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/eventfd.h>
#include "pwtest.h"
#include <pipewire/pipewire.h>
struct obj {
int x;
struct spa_source source;
};
struct data {
struct pw_main_loop *ml;
struct pw_loop *l;
struct obj *a, *b;
int count;
};
static inline void write_eventfd(int evfd)
{
uint64_t value = 1;
ssize_t r = write(evfd, &value, sizeof(value));
pwtest_errno_ok(r);
pwtest_int_eq(r, (ssize_t) sizeof(value));
}
static inline void read_eventfd(int evfd)
{
uint64_t value = 0;
ssize_t r = read(evfd, &value, sizeof(value));
pwtest_errno_ok(r);
pwtest_int_eq(r, (ssize_t) sizeof(value));
}
static void on_event(struct spa_source *source)
{
struct data *d = source->data;
pw_loop_remove_source(d->l, &d->a->source);
pw_loop_remove_source(d->l, &d->b->source);
close(d->a->source.fd);
close(d->b->source.fd);
free(d->a);
free(d->b);
pw_main_loop_quit(d->ml);
}
PWTEST(pwtest_loop_destroy2)
{
struct data data;
pw_init(0, NULL);
spa_zero(data);
data.ml = pw_main_loop_new(NULL);
pwtest_ptr_notnull(data.ml);
data.l = pw_main_loop_get_loop(data.ml);
pwtest_ptr_notnull(data.l);
data.a = calloc(1, sizeof(*data.a));
data.b = calloc(1, sizeof(*data.b));
data.a->source.func = on_event;
data.a->source.fd = eventfd(0, 0);
data.a->source.mask = SPA_IO_IN;
data.a->source.data = &data;
data.b->source.func = on_event;
data.b->source.fd = eventfd(0, 0);
data.b->source.mask = SPA_IO_IN;
data.b->source.data = &data;
pw_loop_add_source(data.l, &data.a->source);
pw_loop_add_source(data.l, &data.b->source);
write_eventfd(data.a->source.fd);
write_eventfd(data.b->source.fd);
pw_main_loop_run(data.ml);
pw_main_loop_destroy(data.ml);
pw_deinit();
return PWTEST_PASS;
}
static void
on_event_recurse1(struct spa_source *source)
{
static bool first = true;
struct data *d = source->data;
++d->count;
pwtest_int_lt(d->count, 3);
read_eventfd(source->fd);
if (first) {
first = false;
pw_loop_enter(d->l);
pw_loop_iterate(d->l, -1);
pw_loop_leave(d->l);
}
pw_main_loop_quit(d->ml);
}
PWTEST(pwtest_loop_recurse1)
{
struct data data;
pw_init(0, NULL);
spa_zero(data);
data.ml = pw_main_loop_new(NULL);
pwtest_ptr_notnull(data.ml);
data.l = pw_main_loop_get_loop(data.ml);
pwtest_ptr_notnull(data.l);
data.a = calloc(1, sizeof(*data.a));
data.b = calloc(1, sizeof(*data.b));
data.a->source.func = on_event_recurse1;
data.a->source.fd = eventfd(0, 0);
data.a->source.mask = SPA_IO_IN;
data.a->source.data = &data;
data.b->source.func = on_event_recurse1;
data.b->source.fd = eventfd(0, 0);
data.b->source.mask = SPA_IO_IN;
data.b->source.data = &data;
pw_loop_add_source(data.l, &data.a->source);
pw_loop_add_source(data.l, &data.b->source);
write_eventfd(data.a->source.fd);
write_eventfd(data.b->source.fd);
pw_main_loop_run(data.ml);
pw_main_loop_destroy(data.ml);
pw_deinit();
free(data.a);
free(data.b);
return PWTEST_PASS;
}
static void
on_event_recurse2(struct spa_source *source)
{
static bool first = true;
struct data *d = source->data;
++d->count;
pwtest_int_lt(d->count, 3);
read_eventfd(source->fd);
if (first) {
first = false;
pw_loop_enter(d->l);
pw_loop_iterate(d->l, -1);
pw_loop_leave(d->l);
} else {
pw_loop_remove_source(d->l, &d->a->source);
pw_loop_remove_source(d->l, &d->b->source);
close(d->a->source.fd);
close(d->b->source.fd);
free(d->a);
free(d->b);
}
pw_main_loop_quit(d->ml);
}
PWTEST(pwtest_loop_recurse2)
{
struct data data;
pw_init(0, NULL);
spa_zero(data);
data.ml = pw_main_loop_new(NULL);
pwtest_ptr_notnull(data.ml);
data.l = pw_main_loop_get_loop(data.ml);
pwtest_ptr_notnull(data.l);
data.a = calloc(1, sizeof(*data.a));
data.b = calloc(1, sizeof(*data.b));
data.a->source.func = on_event_recurse2;
data.a->source.fd = eventfd(0, 0);
data.a->source.mask = SPA_IO_IN;
data.a->source.data = &data;
data.b->source.func = on_event_recurse2;
data.b->source.fd = eventfd(0, 0);
data.b->source.mask = SPA_IO_IN;
data.b->source.data = &data;
pw_loop_add_source(data.l, &data.a->source);
pw_loop_add_source(data.l, &data.b->source);
write_eventfd(data.a->source.fd);
write_eventfd(data.b->source.fd);
pw_main_loop_run(data.ml);
pw_main_loop_destroy(data.ml);
pw_deinit();
return PWTEST_PASS;
}
static void
on_event_fail_if_called(void *data, int fd, uint32_t mask)
{
pwtest_fail_if_reached();
}
struct dmsbd_data {
struct pw_loop *l;
struct pw_main_loop *ml;
struct spa_source *source;
struct spa_hook hook;
};
static void dmsbd_after(void *data)
{
struct dmsbd_data *d = data;
pw_loop_destroy_source(d->l, d->source);
pw_main_loop_quit(d->ml);
}
static const struct spa_loop_control_hooks dmsbd_hooks = {
SPA_VERSION_LOOP_CONTROL_HOOKS,
.after = dmsbd_after,
};
PWTEST(destroy_managed_source_before_dispatch)
{
pw_init(NULL, NULL);
struct dmsbd_data data = {0};
data.ml = pw_main_loop_new(NULL);
pwtest_ptr_notnull(data.ml);
data.l = pw_main_loop_get_loop(data.ml);
pwtest_ptr_notnull(data.l);
data.source = pw_loop_add_io(data.l, eventfd(0, 0), SPA_IO_IN, true, on_event_fail_if_called, NULL);
pwtest_ptr_notnull(data.source);
pw_loop_add_hook(data.l, &data.hook, &dmsbd_hooks, &data);
write_eventfd(data.source->fd);
pw_main_loop_run(data.ml);
pw_main_loop_destroy(data.ml);
pw_deinit();
return PWTEST_PASS;
}
struct dmsbd_recurse_data {
struct pw_loop *l;
struct pw_main_loop *ml;
struct spa_source *a, *b;
struct spa_hook hook;
bool first;
};
static void dmsbd_recurse_on_event(void *data, int fd, uint32_t mask)
{
struct dmsbd_recurse_data *d = data;
read_eventfd(fd);
pw_loop_enter(d->l);
pw_loop_iterate(d->l, 0);
pw_loop_leave(d->l);
pw_main_loop_quit(d->ml);
}
static void dmswp_recurse_before(void *data)
{
struct dmsbd_recurse_data *d = data;
if (d->first) {
write_eventfd(d->a->fd);
write_eventfd(d->b->fd);
}
}
static void dmsbd_recurse_after(void *data)
{
struct dmsbd_recurse_data *d = data;
if (d->first) {
pw_loop_destroy_source(d->l, d->b);
d->first = false;
}
}
static const struct spa_loop_control_hooks dmsbd_recurse_hooks = {
SPA_VERSION_LOOP_CONTROL_HOOKS,
.before = dmswp_recurse_before,
.after = dmsbd_recurse_after,
};
PWTEST(destroy_managed_source_before_dispatch_recurse)
{
pw_init(NULL, NULL);
struct dmsbd_recurse_data data = {
.first = true,
};
data.ml = pw_main_loop_new(NULL);
pwtest_ptr_notnull(data.ml);
data.l = pw_main_loop_get_loop(data.ml);
pwtest_ptr_notnull(data.l);
data.l = pw_main_loop_get_loop(data.ml);
pwtest_ptr_notnull(data.l);
data.a = pw_loop_add_io(data.l, eventfd(0, 0), SPA_IO_IN, true, dmsbd_recurse_on_event, &data);
data.b = pw_loop_add_io(data.l, eventfd(0, 0), SPA_IO_IN, true, on_event_fail_if_called, NULL);
pwtest_ptr_notnull(data.a);
pwtest_ptr_notnull(data.b);
pw_loop_add_hook(data.l, &data.hook, &dmsbd_recurse_hooks, &data);
pw_main_loop_run(data.ml);
pw_main_loop_destroy(data.ml);
pw_deinit();
return PWTEST_PASS;
}
struct ctwd_data {
struct spa_source source;
int handler_running_barrier;
};
static void ctwd_event_handler(struct spa_source *source)
{
struct ctwd_data *data = source->data;
write_eventfd(data->handler_running_barrier);
for (;;)
pause(); /* the purpose of this is to block the loop */
}
static int ctwd_add_source(struct spa_loop *loop, bool async, uint32_t seq,
const void *d, size_t size, void *user_data)
{
struct ctwd_data *data = user_data;
pwtest_neg_errno_ok(spa_loop_add_source(loop, &data->source));
return 0;
}
PWTEST(cancel_thread_while_dispatching)
{
static const struct spa_dict_item data_loop_props_items[] = {
{ "loop.cancel", "true" },
};
static const struct spa_dict data_loop_props = SPA_DICT_INIT_ARRAY(data_loop_props_items);
struct ctwd_data data = {
.source = {
.data = &data,
.func = ctwd_event_handler,
.mask = SPA_IO_IN,
.fd = eventfd(0, 0),
},
.handler_running_barrier = eventfd(0, 0),
};
pw_init(NULL, NULL);
struct pw_data_loop *dl = pw_data_loop_new(&data_loop_props);
pwtest_ptr_notnull(dl);
struct pw_loop *l = pw_data_loop_get_loop(dl);
pwtest_ptr_notnull(l);
pwtest_neg_errno_ok(pw_data_loop_start(dl));
pw_loop_invoke(l, ctwd_add_source, 0, NULL, 0, true, &data);
pwtest_ptr_notnull(data.source.loop);
write_eventfd(data.source.fd);
read_eventfd(data.handler_running_barrier);
pwtest_neg_errno_ok(pw_data_loop_stop(dl));
/* these are the important checks */
pwtest_ptr_null(data.source.priv);
pwtest_int_eq(data.source.rmask, UINT32_C(0));
pw_loop_remove_source(l, &data.source);
pw_data_loop_destroy(dl);
close(data.source.fd);
close(data.handler_running_barrier);
pw_deinit();
return PWTEST_PASS;
}
PWTEST_SUITE(support)
{
pwtest_add(pwtest_loop_destroy2, PWTEST_NOARG);
pwtest_add(pwtest_loop_recurse1, PWTEST_NOARG);
pwtest_add(pwtest_loop_recurse2, PWTEST_NOARG);
pwtest_add(destroy_managed_source_before_dispatch, PWTEST_NOARG);
pwtest_add(destroy_managed_source_before_dispatch_recurse, PWTEST_NOARG);
pwtest_add(cancel_thread_while_dispatching, PWTEST_NOARG);
return PWTEST_PASS;
}