From 5c413929ef458e51449dc7f077e33c9509e67f16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Josef=20S=C3=B6ntgen?= <josef.soentgen@genode-labs.com>
Date: Tue, 20 Nov 2012 14:44:37 +0100
Subject: [PATCH] Noux: add ioctl() to Vfs

File_io_channel now includes ioctl() because pseudo devices which are
implemented as a file-system, e.g. /dev/tty, are controlled via ioctl()
requests. The method is exported to the Vfs through the Vfs_io_channel
class.
---
 ports/src/noux/file_io_service.h | 6 ++++++
 ports/src/noux/vfs_handle.h      | 1 +
 ports/src/noux/vfs_io_channel.h  | 5 +++++
 3 files changed, 12 insertions(+)

diff --git a/ports/src/noux/file_io_service.h b/ports/src/noux/file_io_service.h
index 2147c2260c..17e833c44a 100644
--- a/ports/src/noux/file_io_service.h
+++ b/ports/src/noux/file_io_service.h
@@ -27,6 +27,12 @@ namespace Noux {
 		virtual bool     write(Sysio *sysio, Vfs_handle *vfs_handle) = 0;
 		virtual bool      read(Sysio *sysio, Vfs_handle *vfs_handle) = 0;
 		virtual bool ftruncate(Sysio *sysio, Vfs_handle *vfs_handle) = 0;
+
+		/**
+		 * This method is only needed in file-systems which actually implement
+		 * a device and is therefore false by default.
+		 */
+		virtual bool     ioctl(Sysio *sysio, Vfs_handle *vfs_handle) { return false; }
 	};
 }
 
diff --git a/ports/src/noux/vfs_handle.h b/ports/src/noux/vfs_handle.h
index 0c655291f0..594925141d 100644
--- a/ports/src/noux/vfs_handle.h
+++ b/ports/src/noux/vfs_handle.h
@@ -79,6 +79,7 @@ namespace Noux {
 					bool     write(Sysio *sysio, Vfs_handle *handle) { return _msg("write"); }
 					bool      read(Sysio *sysio, Vfs_handle *handle) { return _msg("read"); }
 					bool ftruncate(Sysio *sysio, Vfs_handle *handle) { return _msg("ftruncate"); }
+					bool     ioctl(Sysio *sysio, Vfs_handle *handle) { return _msg("ioctl"); }
 				};
 				static Pseudo_file_io_service fs;
 				return &fs;
diff --git a/ports/src/noux/vfs_io_channel.h b/ports/src/noux/vfs_io_channel.h
index 1161b1820c..0bc40fc86e 100644
--- a/ports/src/noux/vfs_io_channel.h
+++ b/ports/src/noux/vfs_io_channel.h
@@ -136,6 +136,11 @@ namespace Noux {
 			return 0;
 		}
 
+		bool ioctl(Sysio *sysio)
+		{
+			return _fh->fs()->ioctl(sysio, _fh);
+		}
+
 		bool lseek(Sysio *sysio)
 		{
 			switch (sysio->lseek_in.whence) {