[BlueZ,v2,5/7] shared/bap: Check state of all streams with same BIG ID

Commit Message

Silviu Florian Barbulescu Feb. 12, 2024, 3:32 p.m. UTC

The function is used to verify if all the streams from a BIG are in the
same state, and if so it returns a new queue with all these streams.
This queue will be used to iterate through all configured streams in order
of their creation, and create the IOs.

---
 src/shared/bap.c | 37 +++++++++++++++++++++++++++++++++++++
 src/shared/bap.h |  2 ++
 2 files changed, 39 insertions(+)

Patch

diff --git a/src/shared/bap.c b/src/shared/bap.c
index f0ffdebfe..2c5979b96 100644
--- a/src/shared/bap.c
+++ b/src/shared/bap.c
@@ -6126,3 +6126,40 @@  struct iovec *bt_bap_stream_get_base(struct bt_bap_stream *stream)
 
 	return base_iov;
 }
+
+/*
+ * Check the state of all streams with the same BIG ID.
+ * If all the streams are in the checked state, return
+ * a queue with this streams.
+ * Else, return NULL.
+ */
+struct queue *bt_bap_get_streams_by_state(struct bt_bap_stream *stream,
+						uint8_t test_state)
+{
+	const struct queue_entry *entry;
+	struct bt_bap_stream *e_str;
+	struct queue *return_queue = queue_new();
+
+	for (entry = queue_get_entries(stream->bap->streams);
+				entry; entry = entry->next) {
+		e_str = entry->data;
+
+		if ((e_str->lpac->type != BT_BAP_BCAST_SOURCE) ||
+			(e_str->qos.bcast.big != stream->qos.bcast.big))
+			continue;
+
+		if (e_str == stream) {
+			queue_push_tail(return_queue, e_str);
+			continue;
+		}
+
+		if (e_str->ep->state != test_state) {
+			queue_destroy(return_queue, NULL);
+			return NULL;
+		}
+
+		queue_push_tail(return_queue, e_str);
+	}
+
+	return return_queue;
+}
diff --git a/src/shared/bap.h b/src/shared/bap.h
index 2c3550921..ad6bf2d97 100644
--- a/src/shared/bap.h
+++ b/src/shared/bap.h
@@ -323,3 +323,5 @@  void bt_bap_update_bcast_source(struct bt_bap_pac *pac,
 bool bt_bap_pac_bcast_is_local(struct bt_bap *bap, struct bt_bap_pac *pac);
 
 struct iovec *bt_bap_stream_get_base(struct bt_bap_stream *stream);
+struct queue *bt_bap_get_streams_by_state(struct bt_bap_stream *stream,
+						uint8_t test_state);