diff options
Diffstat (limited to 'tests/sys/sound/polling.c')
| -rw-r--r-- | tests/sys/sound/polling.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/tests/sys/sound/polling.c b/tests/sys/sound/polling.c new file mode 100644 index 000000000000..b7a328d13d4c --- /dev/null +++ b/tests/sys/sound/polling.c @@ -0,0 +1,205 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2025 The FreeBSD Foundation + * + * This software was developed by Christos Margiolis <christos@FreeBSD.org> + * under sponsorship from the FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/event.h> +#include <sys/soundcard.h> + +#include <atf-c.h> +#include <errno.h> +#include <fcntl.h> +#include <inttypes.h> +#include <poll.h> +#include <unistd.h> + +#define FMT_ERR(s) s ": %s", strerror(errno) + +static int +oss_init(void) +{ + int fd, tmp, rc; + + fd = open("/dev/dsp.dummy", O_RDWR); + ATF_REQUIRE_MSG(fd >= 0, FMT_ERR("open")); + + tmp = 2; + rc = ioctl(fd, SNDCTL_DSP_CHANNELS, &tmp); + ATF_REQUIRE_EQ_MSG(rc, 0, FMT_ERR("ioctl")); + + tmp = AFMT_S16_LE; + rc = ioctl(fd, SNDCTL_DSP_SETFMT, &tmp); + ATF_REQUIRE_EQ_MSG(rc, 0, FMT_ERR("ioctl")); + + tmp = 48000; + rc = ioctl(fd, SNDCTL_DSP_SPEED, &tmp); + ATF_REQUIRE_EQ_MSG(rc, 0, FMT_ERR("ioctl")); + + /* + * See http://manuals.opensound.com/developer/SNDCTL_DSP_SETTRIGGER.html + */ + tmp = PCM_ENABLE_INPUT | PCM_ENABLE_OUTPUT; + rc = ioctl(fd, SNDCTL_DSP_SETTRIGGER, &tmp); + ATF_REQUIRE_EQ_MSG(rc, 0, FMT_ERR("ioctl")); + + return (fd); +} + +ATF_TC(poll_kqueue); +ATF_TC_HEAD(poll_kqueue, tc) +{ + atf_tc_set_md_var(tc, "descr", "kqueue(2) test"); + atf_tc_set_md_var(tc, "require.kmods", "snd_dummy"); +} + +ATF_TC_BODY(poll_kqueue, tc) +{ + struct kevent ev; + int16_t buf[32]; + int fd, kq; + + fd = oss_init(); + + kq = kqueue(); + ATF_REQUIRE_MSG(kq >= 0, FMT_ERR("kqueue")); + EV_SET(&ev, fd, EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, 0); + ATF_REQUIRE_MSG(kevent(kq, &ev, 1, NULL, 0, NULL) == 0, + FMT_ERR("kevent")); + + ATF_REQUIRE_MSG(kevent(kq, NULL, 0, &ev, 1, NULL) == 1, + FMT_ERR("kevent")); + ATF_REQUIRE_MSG((ev.flags & EV_ERROR) == 0, "EV_ERROR is set"); + ATF_REQUIRE_MSG(ev.data != 0, "data is %" PRId64, ev.data); + ATF_REQUIRE_MSG(read(fd, buf, sizeof(buf)) > 0, FMT_ERR("read")); + + EV_SET(&ev, fd, EVFILT_READ, EV_DELETE, 0, 0, 0); + close(kq); + + kq = kqueue(); + ATF_REQUIRE_MSG(kq >= 0, FMT_ERR("kqueue")); + EV_SET(&ev, fd, EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, 0); + ATF_REQUIRE_MSG(kevent(kq, &ev, 1, NULL, 0, NULL) == 0, + FMT_ERR("kevent")); + + ATF_REQUIRE_MSG(kevent(kq, NULL, 0, &ev, 1, NULL) == 1, + FMT_ERR("kevent")); + ATF_REQUIRE_MSG((ev.flags & EV_ERROR) == 0, "EV_ERROR is set"); + ATF_REQUIRE_MSG(ev.data != 0, "data is %" PRId64, ev.data); + ATF_REQUIRE_MSG(write(fd, buf, sizeof(buf)) > 0, FMT_ERR("write")); + + EV_SET(&ev, fd, EVFILT_WRITE, EV_DELETE, 0, 0, 0); + close(kq); + + close(fd); +} + +ATF_TC(poll_poll); +ATF_TC_HEAD(poll_poll, tc) +{ + atf_tc_set_md_var(tc, "descr", "poll(2) test"); + atf_tc_set_md_var(tc, "require.kmods", "snd_dummy"); +} + +ATF_TC_BODY(poll_poll, tc) +{ + struct pollfd pfd[2]; + int16_t buf[32]; + int fd; + bool rd = false; + bool wr = false; + + fd = oss_init(); + + while (!rd || !wr) { + pfd[0].fd = fd; + pfd[0].events = POLLIN; + pfd[1].fd = fd; + pfd[1].events = POLLOUT; + ATF_REQUIRE_MSG(poll(pfd, sizeof(pfd) / sizeof(struct pollfd), + -1) > 0, FMT_ERR("poll")); + + if (pfd[0].revents) { + ATF_REQUIRE_MSG(read(fd, buf, sizeof(buf)) > 0, + FMT_ERR("read")); + rd = true; + } + if (pfd[1].revents) { + ATF_REQUIRE_MSG(write(fd, buf, sizeof(buf)) > 0, + FMT_ERR("write")); + wr = true; + } + } + close(fd); +} + +ATF_TC(poll_select); +ATF_TC_HEAD(poll_select, tc) +{ + atf_tc_set_md_var(tc, "descr", "select(2) test"); + atf_tc_set_md_var(tc, "require.kmods", "snd_dummy"); +} + +ATF_TC_BODY(poll_select, tc) +{ + fd_set fds[2]; + int16_t buf[32]; + int fd; + bool rd = false; + bool wr = false; + + fd = oss_init(); + + while (!rd || !wr) { + FD_ZERO(&fds[0]); + FD_ZERO(&fds[1]); + FD_SET(fd, &fds[0]); + FD_SET(fd, &fds[1]); + ATF_REQUIRE_MSG(select(fd + 2, &fds[0], &fds[1], NULL, NULL) > 0, + FMT_ERR("select")); + if (FD_ISSET(fd, &fds[0])) { + ATF_REQUIRE_MSG(read(fd, buf, sizeof(buf)) > 0, + FMT_ERR("read")); + rd = true; + } + if (FD_ISSET(fd, &fds[1])) { + ATF_REQUIRE_MSG(write(fd, buf, sizeof(buf)) > 0, + FMT_ERR("write")); + wr = true; + } + } + close(fd); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, poll_kqueue); + ATF_TP_ADD_TC(tp, poll_poll); + ATF_TP_ADD_TC(tp, poll_select); + + return (atf_no_error()); +} |