1 files changed, 70 insertions, 0 deletions
diff --git a/share/examples/sound/select.c b/share/examples/sound/select.c
new file mode 100644
index 000000000000..762d0b2b86a7
--- /dev/null
+++ b/share/examples/sound/select.c
@@ -0,0 +1,70 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 Goran Mekić
+ *
+ * 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/poll.h>
+
+#include "oss.h"
+
+int
+main(int argc, char *argv[])
+{
+	struct config config = {
+		.device = "/dev/dsp",
+		.mode = O_RDWR,
+		.format = AFMT_S32_NE,
+		.sample_rate = 48000,
+	};
+	fd_set fds;
+	int rc, bytes;
+
+	oss_init(&config);
+	bytes = config.buffer_info.bytes;
+
+	for (;;) {
+		FD_ZERO(&fds);
+		FD_SET(config.fd, &fds);
+		if (select(config.fd + 1, &fds, NULL, NULL, NULL) < 0)
+			err(1, "select");
+		if (FD_ISSET(config.fd, &fds)) {
+			if ((rc = read(config.fd, config.buf, bytes)) < bytes) {
+				warn("Requested %d bytes, but read %d!\n",
+				    bytes, rc);
+				break;
+			}
+			if ((rc = write(config.fd, config.buf, bytes)) < bytes) {
+				warn("Requested %d bytes, but wrote %d!\n",
+				    bytes, rc);
+				break;
+			}
+		}
+	}
+
+	free(config.buf);
+	close(config.fd);
+
+	return (0);
+}