[libcamera-devel] [PATCH v4 16/31] libcamera: request: Store the streams in the request

[Jacopo Mondi]

Store the streams which the request applies to and provide an accessor
method to return them in a set.

Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>
---
 include/libcamera/request.h |  2 ++
 src/libcamera/request.cpp   | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/libcamera/request.h b/include/libcamera/request.h
index 0dbd425115e8..1bf90de2c6f9 100644
--- a/include/libcamera/request.h
+++ b/include/libcamera/request.h
@@ -34,6 +34,7 @@ public:
 
 	int setBuffers(const std::map<Stream *, Buffer *> &streamMap);
 	Buffer *findBuffer(Stream *stream) const;
+	const std::set<Stream *> &streams() const { return streams_; }
 
 	Status status() const { return status_; }
 
@@ -49,6 +50,7 @@ private:
 	Camera *camera_;
 	std::map<Stream *, Buffer *> bufferMap_;
 	std::unordered_set<Buffer *> pending_;
+	std::set<Stream *> streams_;
 
 	Status status_;
 };
diff --git a/src/libcamera/request.cpp b/src/libcamera/request.cpp
index e0e77e972411..22c516208ede 100644
--- a/src/libcamera/request.cpp
+++ b/src/libcamera/request.cpp
@@ -51,6 +51,13 @@ Request::Request(Camera *camera)
 {
 }
 
+/**
+ * \fn Request::streams()
+ * \brief Retrieve the set of streams contained in the request
+ *
+ * \return The set of streams contained in the request
+ */
+
 /**
  * \brief Set the streams to capture with associated buffers
  * \param[in] streamMap The map of streams to buffers
@@ -65,6 +72,10 @@ int Request::setBuffers(const std::map<Stream *, Buffer *> &streamMap)
 	}
 
 	bufferMap_ = streamMap;
+
+	for (const auto &map : streamMap)
+		streams_.insert(map.first);
+
 	return 0;
 }
 
@@ -77,6 +88,11 @@ int Request::setBuffers(const std::map<Stream *, Buffer *> &streamMap)
  * map.
  */
 
+/**
+ * \var Request::streams_
+ * \brief Set of streams in this request
+ */
+
 /**
  * \brief Return the buffer associated with a stream
  * \param[in] stream The stream the buffer is associated to
-- 
2.21.0