Adding upstream version 0.3.65.upstream/0.3.65upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 229 insertions, 0 deletions

diff --git a/spa/tools/spa-monitor.c b/spa/tools/spa-monitor.c
new file mode 100644
index 0000000..28159f3
--- /dev/null
+++ b/spa/tools/spa-monitor.c
@@ -0,0 +1,229 @@
+/* Simple Plugin API
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * 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 <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <poll.h>
+
+#include <spa/utils/string.h>
+#include <spa/support/log-impl.h>
+#include <spa/support/loop.h>
+#include <spa/support/plugin.h>
+#include <spa/monitor/device.h>
+
+#include <spa/debug/dict.h>
+#include <spa/debug/pod.h>
+
+static SPA_LOG_IMPL(default_log);
+
+struct data {
+	struct spa_log *log;
+	struct spa_loop main_loop;
+
+	struct spa_support support[3];
+	uint32_t n_support;
+
+	unsigned int n_sources;
+	struct spa_source sources[16];
+
+	bool rebuild_fds;
+	struct pollfd fds[16];
+	unsigned int n_fds;
+};
+
+
+static void inspect_info(struct data *data, const struct spa_device_object_info *info)
+{
+	spa_debug_dict(0, info->props);
+}
+
+static void on_device_info(void *_data, const struct spa_device_info *info)
+{
+	spa_debug_dict(0, info->props);
+}
+
+static void on_device_object_info(void *_data, uint32_t id, const struct spa_device_object_info *info)
+{
+	struct data *data = _data;
+
+	if (info == NULL) {
+		fprintf(stderr, "removed: %u\n", id);
+	}
+	else {
+		fprintf(stderr, "added/changed: %u\n", id);
+		inspect_info(data, info);
+	}
+}
+
+static int do_add_source(void *object, struct spa_source *source)
+{
+	struct data *data = object;
+
+	data->sources[data->n_sources] = *source;
+	data->n_sources++;
+	data->rebuild_fds = true;
+
+	return 0;
+}
+
+static const struct spa_loop_methods impl_loop = {
+	SPA_VERSION_LOOP_METHODS,
+	.add_source = do_add_source,
+};
+
+static const struct spa_device_events impl_device_events = {
+	SPA_VERSION_DEVICE_EVENTS,
+	.info = on_device_info,
+	.object_info = on_device_object_info,
+};
+
+static void handle_device(struct data *data, struct spa_device *device)
+{
+	struct spa_hook listener;
+
+	spa_zero(listener);
+	spa_device_add_listener(device, &listener, &impl_device_events, data);
+
+	while (true) {
+		int r;
+		uint32_t i;
+
+		/* rebuild */
+		if (data->rebuild_fds) {
+			for (i = 0; i < data->n_sources; i++) {
+				struct spa_source *p = &data->sources[i];
+				data->fds[i].fd = p->fd;
+				data->fds[i].events = p->mask;
+			}
+			data->n_fds = data->n_sources;
+			data->rebuild_fds = false;
+		}
+
+		r = poll((struct pollfd *) data->fds, data->n_fds, -1);
+		if (r < 0) {
+			if (errno == EINTR)
+				continue;
+			break;
+		}
+		if (r == 0) {
+			fprintf(stderr, "device %p: select timeout", device);
+			break;
+		}
+
+		/* after */
+		for (i = 0; i < data->n_sources; i++) {
+			struct spa_source *p = &data->sources[i];
+			p->func(p);
+		}
+	}
+	spa_hook_remove(&listener);
+}
+
+int main(int argc, char *argv[])
+{
+	struct data data = { 0 };
+	int res;
+	void *handle;
+	spa_handle_factory_enum_func_t enum_func;
+	uint32_t fidx;
+
+	data.log = &default_log.log;
+	data.main_loop.iface = SPA_INTERFACE_INIT(
+			SPA_TYPE_INTERFACE_Loop,
+			SPA_VERSION_LOOP,
+			&impl_loop, &data);
+
+	data.support[0] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_Log, data.log);
+	data.support[1] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_Loop, &data.main_loop);
+	data.n_support = 2;
+
+	if (argc < 2) {
+		printf("usage: %s <plugin.so>\n", argv[0]);
+		return -1;
+	}
+
+	if ((handle = dlopen(argv[1], RTLD_NOW)) == NULL) {
+		printf("can't load %s\n", argv[1]);
+		return -1;
+	}
+	if ((enum_func = dlsym(handle, SPA_HANDLE_FACTORY_ENUM_FUNC_NAME)) == NULL) {
+		printf("can't find function\n");
+		return -1;
+	}
+
+	for (fidx = 0;;) {
+		const struct spa_handle_factory *factory;
+		uint32_t iidx;
+
+		if ((res = enum_func(&factory, &fidx)) <= 0) {
+			if (res != 0)
+				printf("can't enumerate factories: %d\n", res);
+			break;
+		}
+
+		if (factory->version < 1) {
+			printf("factories version %d < %d not supported\n",
+					factory->version, 1);
+			continue;
+		}
+
+		for (iidx = 0;;) {
+			const struct spa_interface_info *info;
+
+			if ((res =
+			     spa_handle_factory_enum_interface_info(factory, &info, &iidx)) <= 0) {
+				if (res != 0)
+					printf("can't enumerate interfaces: %d\n", res);
+				break;
+			}
+
+			if (spa_streq(info->type, SPA_TYPE_INTERFACE_Device)) {
+				struct spa_handle *handle;
+				void *interface;
+
+				handle = calloc(1, spa_handle_factory_get_size(factory, NULL));
+				if ((res =
+				     spa_handle_factory_init(factory, handle, NULL, data.support,
+							     data.n_support)) < 0) {
+					printf("can't make factory instance: %s\n", strerror(res));
+					continue;
+				}
+
+				if ((res =
+				     spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_Device,
+							      &interface)) < 0) {
+					printf("can't get interface: %s\n", strerror(res));
+					continue;
+				}
+				handle_device(&data, interface);
+			}
+		}
+	}
+
+	return 0;
+}