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node: add node.priority

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Add a simple priority to nodes.
This commit is contained in:
Wim Taymans 2019-10-17 12:43:23 +02:00
parent e2f6a7a34e
commit ecd8dbc7f0
4 changed files with 32 additions and 5 deletions
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21
src/examples/media-session/media-session.c
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@ -172,6 +172,7 @@ struct session {
struct impl *impl;
enum pw_direction direction;
int priority;
uint64_t plugged;
struct node *node;
@ -503,6 +504,11 @@ handle_node(struct impl *impl, uint32_t id,
else
sess->plugged = SPA_TIMESPEC_TO_NSEC(&impl->now);
if ((str = spa_dict_lookup(props, PW_KEY_NODE_PRIORITY)) != NULL)
sess->priority = pw_properties_parse_int(str);
else
sess->priority = 0;
spa_list_init(&sess->node_list);
spa_list_append(&impl->session_list, &sess->l);
@ -793,6 +799,7 @@ struct find_data {
const char *media_class;
struct session *sess;
bool exclusive;
int priority;
uint64_t plugged;
};
@ -802,6 +809,7 @@ static int find_session(void *data, struct session *sess)
struct impl *impl = find->impl;
const struct spa_dict *props;
const char *str;
int priority = 0;
uint64_t plugged = 0;
pw_log_debug(NAME " %p: looking at session '%d' enabled:%d busy:%d exclusive:%d",
@ -824,6 +832,7 @@ static int find_session(void *data, struct session *sess)
return 0;
plugged = sess->plugged;
priority = sess->priority;
}
if ((find->exclusive && sess->busy) || sess->exclusive) {
@ -834,9 +843,12 @@ static int find_session(void *data, struct session *sess)
pw_log_debug(NAME " %p: found session '%d' %" PRIu64, impl,
sess->id, plugged);
if (find->sess == NULL || plugged > find->plugged) {
pw_log_debug(NAME " %p: new best %" PRIu64, impl, plugged);
if (find->sess == NULL ||
priority > find->priority ||
(priority == find->priority && plugged > find->plugged)) {
pw_log_debug(NAME " %p: new best %d %" PRIu64, impl, priority, plugged);
find->sess = sess;
find->priority = priority;
find->plugged = plugged;
}
return 0;
@ -953,6 +965,8 @@ static int rescan_node(struct impl *impl, struct node *node)
return 0;
}
spa_zero(find);
if ((category = spa_dict_lookup(props, PW_KEY_MEDIA_CATEGORY)) == NULL) {
pw_log_debug(NAME" %p: node %d find category from ports: %d %d",
impl, node->obj.id, info->n_input_ports, info->n_output_ports);
@ -1041,9 +1055,8 @@ static int rescan_node(struct impl *impl, struct node *node)
media, category, role, exclusive, find.path_id);
find.impl = impl;
find.sess = NULL;
find.plugged = 0;
find.exclusive = exclusive;
spa_list_for_each(session, &impl->session_list, l)
find_session(&find, session);