libcamera: base: file_descriptor: Add constructor from UniqueFD

Add a FileDescriptor constructor that takes a UniqueFD, transfering
ownership of the file descriptor to the FileDescriptor.

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/libcamera/base/file_descriptor.h b/include/libcamera/base/file_descriptor.h
index 5d1594e8..74292eba 100644
--- a/include/libcamera/base/file_descriptor.h
+++ b/include/libcamera/base/file_descriptor.h
@@ -11,11 +11,14 @@
 
 namespace libcamera {
 
+class UniqueFD;
+
 class FileDescriptor final
 {
 public:
 	explicit FileDescriptor(const int &fd = -1);
 	explicit FileDescriptor(int &&fd);
+	explicit FileDescriptor(UniqueFD fd);
 	FileDescriptor(const FileDescriptor &other);
 	FileDescriptor(FileDescriptor &&other);
 	~FileDescriptor();