beginnings of pw-toptop

2 files changed, 443 insertions, 0 deletions

diff --git a/src/tools/meson.build b/src/tools/meson.build
index f119fc2a..25253921 100644
--- a/src/tools/meson.build
+++ b/src/tools/meson.build
@@ -38,6 +38,13 @@ executable('pw-metadata',
 	dependencies : [pipewire_dep],
 )
 
+executable('pw-top',
+	'pw-top.c',
+	c_args : [ '-D_GNU_SOURCE' ],
+	install: true,
+	dependencies : [pipewire_dep],
+)
+
 if get_option('pw-cat') and sndfile_dep.found()
 
   pwcat_sources = [
diff --git a/src/tools/pw-top.c b/src/tools/pw-top.c
new file mode 100644
index 00000000..7744c9c4
--- /dev/null
+++ b/src/tools/pw-top.c
@@ -0,0 +1,436 @@
+/* PipeWire
+ *
+ * Copyright © 2020 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 <stdio.h>
+#include <signal.h>
+#include <getopt.h>
+
+#include <spa/utils/result.h>
+#include <spa/pod/parser.h>
+#include <spa/debug/pod.h>
+
+#include <pipewire/impl.h>
+#include <extensions/profiler.h>
+
+#define MAX_NAME		128
+#define MAX_NODES		1024
+#define MAX_FOLLOWERS		1024
+
+struct measurement {
+	int32_t index;
+	int32_t status;
+	int64_t period;
+	int64_t prev_signal;
+	int64_t signal;
+	int64_t awake;
+	int64_t finish;
+};
+
+struct node {
+	uint32_t id;
+	char name[MAX_NAME];
+	struct measurement measurement;
+	int64_t start_status;
+	int64_t last_status;
+};
+
+struct data {
+	struct pw_main_loop *loop;
+	struct pw_context *context;
+
+	struct pw_core *core;
+	struct spa_hook core_listener;
+
+	struct pw_registry *registry;
+	struct spa_hook registry_listener;
+
+	struct pw_proxy *profiler;
+	struct spa_hook profiler_listener;
+	int check_profiler;
+
+	int n_nodes;
+	struct node nodes[MAX_NODES];
+};
+
+struct point {
+	int64_t count;
+	float cpu_load[3];
+	struct spa_io_clock clock;
+	uint32_t driver;
+	uint32_t n_followers;
+	uint32_t followers[MAX_NODES];
+};
+
+static int process_info(struct data *d, const struct spa_pod *pod, struct point *point)
+{
+	spa_pod_parse_struct(pod,
+			SPA_POD_Long(&point->count),
+			SPA_POD_Float(&point->cpu_load[0]),
+			SPA_POD_Float(&point->cpu_load[1]),
+			SPA_POD_Float(&point->cpu_load[2]));
+	return 0;
+}
+
+static int process_clock(struct data *d, const struct spa_pod *pod, struct point *point)
+{
+	spa_pod_parse_struct(pod,
+			SPA_POD_Int(&point->clock.flags),
+			SPA_POD_Int(&point->clock.id),
+			SPA_POD_Stringn(point->clock.name, sizeof(point->clock.name)),
+			SPA_POD_Long(&point->clock.nsec),
+			SPA_POD_Fraction(&point->clock.rate),
+			SPA_POD_Long(&point->clock.position),
+			SPA_POD_Long(&point->clock.duration),
+			SPA_POD_Long(&point->clock.delay),
+			SPA_POD_Double(&point->clock.rate_diff),
+			SPA_POD_Long(&point->clock.next_nsec));
+	return 0;
+}
+
+static int find_node(struct data *d, uint32_t id, const char *name)
+{
+	int i;
+	for (i = 0; i < d->n_nodes; i++) {
+		if (d->nodes[i].id == id && strcmp(d->nodes[i].name, name) == 0)
+			return i;
+	}
+	return -1;
+}
+
+static int add_node(struct data *d, uint32_t id, const char *name)
+{
+	int idx = d->n_nodes;
+
+	if (idx == MAX_NODES)
+		return -1;
+
+	d->n_nodes++;
+
+	strncpy(d->nodes[idx].name, name, MAX_NAME);
+	d->nodes[idx].name[MAX_NAME-1] = '\0';
+	d->nodes[idx].id = id;
+	fprintf(stderr, "logging node %u (\"%s\")\n", id, name);
+
+	return idx;
+}
+
+static int process_driver_block(struct data *d, const struct spa_pod *pod, struct point *point)
+{
+	char *name = NULL;
+	uint32_t id = 0;
+	struct measurement m;
+	int idx;
+
+	spa_zero(m);
+	spa_pod_parse_struct(pod,
+			SPA_POD_Int(&id),
+			SPA_POD_String(&name),
+			SPA_POD_Long(&m.prev_signal),
+			SPA_POD_Long(&m.signal),
+			SPA_POD_Long(&m.awake),
+			SPA_POD_Long(&m.finish),
+			SPA_POD_Int(&m.status));
+
+	if ((idx = find_node(d, id, name)) < 0) {
+		if ((idx = add_node(d, id, name)) < 0) {
+			pw_log_warn("too many nodes");
+			return -ENOSPC;
+		}
+	}
+	d->nodes[idx].measurement = m;
+	point->driver = idx;
+	return 0;
+}
+
+static int process_follower_block(struct data *d, const struct spa_pod *pod, struct point *point)
+{
+	uint32_t id = 0;
+	const char *name =  NULL;
+	struct measurement m;
+	int idx;
+
+	spa_zero(m);
+	spa_pod_parse_struct(pod,
+			SPA_POD_Int(&id),
+			SPA_POD_String(&name),
+			SPA_POD_Long(&m.prev_signal),
+			SPA_POD_Long(&m.signal),
+			SPA_POD_Long(&m.awake),
+			SPA_POD_Long(&m.finish),
+			SPA_POD_Int(&m.status));
+
+	if ((idx = find_node(d, id, name)) < 0) {
+		if ((idx = add_node(d, id, name)) < 0) {
+			pw_log_warn("too many followers");
+			return -ENOSPC;
+		}
+	}
+	d->nodes[idx].measurement = m;
+	point->followers[point->n_followers] = idx;
+	point->n_followers++;
+	return 0;
+}
+
+static void dump_point(struct data *d, struct point *point)
+{
+	struct node *driver = &d->nodes[point->driver];
+
+	if (driver->start_status == 0) {
+		driver->start_status = point->clock.nsec;
+		driver->last_status = point->clock.nsec;
+	}
+	else if (point->clock.nsec - driver->last_status > SPA_NSEC_PER_SEC) {
+		uint32_t i;
+
+		fprintf(stderr, "CPU %f %f %f\n\n",
+				point->cpu_load[0], point->cpu_load[1], point->cpu_load[2]);
+		fprintf(stderr, " %u    %s\n", driver->id, driver->name);
+
+		fprintf(stderr, "           rate:%u/%u position:%"PRIu64" duration:%"PRIu64
+				" delay:%"PRIi64" dll:%f\n",
+				point->clock.rate.num, point->clock.rate.denom,
+				point->clock.position, point->clock.duration,
+				point->clock.delay, point->clock.rate_diff);
+
+		for (i = 0; i < point->n_followers; i++) {
+			struct node *f = &d->nodes[point->followers[i]];
+			fprintf(stderr, " %u    + %s\n", f->id, f->name);
+		}
+		driver->last_status = point->clock.nsec;
+		fprintf(stderr, "\n");
+	}
+}
+
+static void profiler_profile(void *data, const struct spa_pod *pod)
+{
+        struct data *d = data;
+	struct spa_pod *o;
+	struct spa_pod_prop *p;
+	struct point point;
+
+	SPA_POD_STRUCT_FOREACH(pod, o) {
+		int res = 0;
+		if (!spa_pod_is_object_type(o, SPA_TYPE_OBJECT_Profiler))
+			continue;
+
+		spa_zero(point);
+		SPA_POD_OBJECT_FOREACH((struct spa_pod_object*)o, p) {
+			switch(p->key) {
+			case SPA_PROFILER_info:
+				res = process_info(d, &p->value, &point);
+				break;
+			case SPA_PROFILER_clock:
+				res = process_clock(d, &p->value, &point);
+				break;
+			case SPA_PROFILER_driverBlock:
+				res = process_driver_block(d, &p->value, &point);
+				break;
+			case SPA_PROFILER_followerBlock:
+				process_follower_block(d, &p->value, &point);
+				break;
+			default:
+				break;
+			}
+			if (res < 0)
+				break;
+		}
+		if (res < 0)
+			continue;
+
+		dump_point(d, &point);
+	}
+}
+
+static const struct pw_profiler_events profiler_events = {
+	PW_VERSION_PROFILER_EVENTS,
+        .profile = profiler_profile,
+};
+
+static void registry_event_global(void *data, uint32_t id,
+				  uint32_t permissions, const char *type, uint32_t version,
+				  const struct spa_dict *props)
+{
+	struct data *d = data;
+	struct pw_proxy *proxy;
+
+	if (strcmp(type, PW_TYPE_INTERFACE_Profiler) != 0)
+		return;
+
+	if (d->profiler != NULL) {
+		fprintf(stderr, "Ignoring profiler %d: already attached\n", id);
+		return;
+	}
+
+	proxy = pw_registry_bind(d->registry, id, type, PW_VERSION_PROFILER, 0);
+	if (proxy == NULL)
+		goto error_proxy;
+
+	fprintf(stderr, "Attaching to Profiler id:%d\n", id);
+	d->profiler = proxy;
+	pw_proxy_add_object_listener(proxy, &d->profiler_listener, &profiler_events, d);
+
+	return;
+
+error_proxy:
+	pw_log_error("failed to create proxy: %m");
+	return;
+}
+
+static const struct pw_registry_events registry_events = {
+	PW_VERSION_REGISTRY_EVENTS,
+	.global = registry_event_global,
+};
+
+static void on_core_error(void *_data, uint32_t id, int seq, int res, const char *message)
+{
+	struct data *data = _data;
+
+	pw_log_error("error id:%u seq:%d res:%d (%s): %s",
+			id, seq, res, spa_strerror(res), message);
+
+	if (id == PW_ID_CORE)
+		pw_main_loop_quit(data->loop);
+}
+
+static void on_core_done(void *_data, uint32_t id, int seq)
+{
+	struct data *d = _data;
+
+	if (seq == d->check_profiler) {
+		if (d->profiler == NULL) {
+			pw_log_error("no Profiler Interface found, please load one in the server");
+			pw_main_loop_quit(d->loop);
+		}
+	}
+}
+
+
+static const struct pw_core_events core_events = {
+	PW_VERSION_CORE_EVENTS,
+	.error = on_core_error,
+	.done = on_core_done,
+};
+
+static void do_quit(void *data, int signal_number)
+{
+	struct data *d = data;
+	pw_main_loop_quit(d->loop);
+}
+
+static void show_help(const char *name)
+{
+        fprintf(stdout, "%s [options]\n"
+		"  -h, --help                            Show this help\n"
+		"      --version                         Show version\n"
+		"  -r, --remote                          Remote daemon name\n",
+		name);
+}
+
+int main(int argc, char *argv[])
+{
+	struct data data = { 0 };
+	struct pw_loop *l;
+	const char *opt_remote = NULL;
+	static const struct option long_options[] = {
+		{ "help",	no_argument,		NULL, 'h' },
+		{ "version",	no_argument,		NULL, 'V' },
+		{ "remote",	required_argument,	NULL, 'r' },
+		{ NULL, 0, NULL, 0}
+	};
+	int c;
+
+	pw_init(&argc, &argv);
+
+	while ((c = getopt_long(argc, argv, "hVr:o:", long_options, NULL)) != -1) {
+		switch (c) {
+		case 'h':
+			show_help(argv[0]);
+			return 0;
+		case 'V':
+			fprintf(stdout, "%s\n"
+				"Compiled with libpipewire %s\n"
+				"Linked with libpipewire %s\n",
+				argv[0],
+				pw_get_headers_version(),
+				pw_get_library_version());
+			return 0;
+		case 'r':
+			opt_remote = optarg;
+			break;
+		default:
+			show_help(argv[0]);
+			return -1;
+		}
+	}
+
+	data.loop = pw_main_loop_new(NULL);
+	if (data.loop == NULL) {
+		fprintf(stderr, "Can't create data loop: %m\n");
+		return -1;
+	}
+
+	l = pw_main_loop_get_loop(data.loop);
+	pw_loop_add_signal(l, SIGINT, do_quit, &data);
+	pw_loop_add_signal(l, SIGTERM, do_quit, &data);
+
+	data.context = pw_context_new(l, NULL, 0);
+	if (data.context == NULL) {
+		fprintf(stderr, "Can't create context: %m\n");
+		return -1;
+	}
+
+	pw_context_load_module(data.context, PW_EXTENSION_MODULE_PROFILER, NULL, NULL);
+
+	data.core = pw_context_connect(data.context,
+			pw_properties_new(
+				PW_KEY_REMOTE_NAME, opt_remote,
+				NULL),
+			0);
+	if (data.core == NULL) {
+		fprintf(stderr, "Can't connect: %m\n");
+		return -1;
+	}
+
+	pw_core_add_listener(data.core,
+				   &data.core_listener,
+				   &core_events, &data);
+	data.registry = pw_core_get_registry(data.core,
+					  PW_VERSION_REGISTRY, 0);
+	pw_registry_add_listener(data.registry,
+				       &data.registry_listener,
+				       &registry_events, &data);
+
+	data.check_profiler = pw_core_sync(data.core, 0, 0);
+
+	pw_main_loop_run(data.loop);
+
+	pw_proxy_destroy((struct pw_proxy*)data.profiler);
+	pw_proxy_destroy((struct pw_proxy*)data.registry);
+	pw_context_destroy(data.context);
+	pw_main_loop_destroy(data.loop);
+
+	pw_deinit();
+
+	return 0;
+}