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profiler: use rt_events

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Track the driver nodes and listen for rt events to collect stats.
This commit is contained in:
Wim Taymans 2023-07-17 19:13:19 +02:00
parent cfd3bcd6b2
commit 7ae59ff399
5 changed files with 107 additions and 65 deletions
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93
src/modules/module-profiler.c
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@ -71,6 +71,16 @@ static const struct spa_dict_item module_props[] = {
{ PW_KEY_MODULE_VERSION, PACKAGE_VERSION },
};
struct node {
struct spa_list link;
struct impl *impl;
struct pw_impl_node *node;
struct spa_hook node_rt_listener;
unsigned enabled:1;
};
struct impl {
struct pw_context *context;
struct pw_properties *properties;
@ -84,6 +94,8 @@ struct impl {
struct pw_global *global;
struct spa_hook global_listener;
struct spa_list node_list;
int64_t count;
uint32_t busy;
uint32_t empty;
@ -94,7 +106,6 @@ struct impl {
struct spa_ringbuffer buffer;
uint8_t tmp[TMP_BUFFER];
uint8_t data[MAX_BUFFER];
uint8_t flush[MAX_BUFFER + sizeof(struct spa_pod_struct)];
};
@ -278,15 +289,88 @@ done:
impl->count++;
}
static void node_complete(void *data)
{
struct node *n = data;
pw_log_info("complete");
context_do_profile(n->impl, n->node);
}
static struct pw_impl_node_rt_events node_rt_events = {
PW_VERSION_IMPL_NODE_RT_EVENTS,
.complete = node_complete,
};
static void enable_node_profiling(struct node *n, bool enabled)
{
if (enabled && !n->enabled) {
SPA_FLAG_SET(n->node->rt.target.activation->flags, PW_NODE_ACTIVATION_FLAG_PROFILER);
pw_impl_node_add_rt_listener(n->node, &n->node_rt_listener, &node_rt_events, n);
} else if (!enabled && n->enabled) {
SPA_FLAG_CLEAR(n->node->rt.target.activation->flags, PW_NODE_ACTIVATION_FLAG_PROFILER);
pw_impl_node_remove_rt_listener(n->node, &n->node_rt_listener);
}
n->enabled = enabled;
}
static void enable_profiling(struct impl *impl, bool enabled)
{
struct node *n;
spa_list_for_each(n, &impl->node_list, link)
enable_node_profiling(n, enabled);
}
static void context_driver_added(void *data, struct pw_impl_node *node)
{
struct impl *impl = data;
struct node *n;
n = calloc(1, sizeof(*n));
if (n == NULL)
return;
n->impl = impl;
n->node = node;
spa_list_append(&impl->node_list, &n->link);
if (impl->busy > 0)
enable_node_profiling(n, true);
}
static struct node *find_node(struct impl *impl, struct pw_impl_node *node)
{
struct node *n;
spa_list_for_each(n, &impl->node_list, link) {
if (n->node == node)
return n;
}
return NULL;
}
static void context_driver_removed(void *data, struct pw_impl_node *node)
{
struct impl *impl = data;
struct node *n;
n = find_node(impl, node);
if (n == NULL)
return;
enable_node_profiling(n, false);
spa_list_remove(&n->link);
free(n);
}
static const struct pw_context_events context_events = {
PW_VERSION_CONTEXT_EVENTS,
.profiler = context_do_profile,
.driver_added = context_driver_added,
.driver_removed = context_driver_removed,
};
static void stop_listener(struct impl *impl)
{
if (impl->listening) {
pw_context_stop_profiler(impl->context);
enable_profiling(impl, false);
impl->listening = false;
}
}
@ -329,7 +413,7 @@ global_bind(void *object, struct pw_impl_client *client, uint32_t permissions,
if (++impl->busy == 1) {
pw_log_info("%p: starting profiler", impl);
pw_context_start_profiler(impl->context);
enable_profiling(impl, true);
impl->listening = true;
}
return 0;
@ -390,6 +474,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
if (impl == NULL)
return -errno;
spa_list_init(&impl->node_list);
pw_protocol_native_ext_profiler_init(context);
pw_log_debug("module %p: new %s", impl, args);