lib: intro `FStream::fd`

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/standard/file.nit b/lib/standard/file.nit
index 862f145..f7883f6 100644 (file)
--- a/lib/standard/file.nit
+++ b/lib/standard/file.nit
@@ -26,6 +26,7 @@ in "C Header" `{
        #include <sys/types.h>
        #include <sys/stat.h>
        #include <unistd.h>
+       #include <stdio.h>
 `}
 
 # File Abstract Stream
@@ -37,8 +38,10 @@ abstract class FStream
        # The FILE *.
        var _file: nullable NativeFile = null
 
-       fun file_stat: FileStat
-       do return _file.file_stat end
+       fun file_stat: FileStat do return _file.file_stat
+
+       # File descriptor of this file
+       fun fd: Int do return _file.fileno
 end
 
 # File input stream
@@ -514,6 +517,7 @@ private extern class NativeFile `{ FILE* `}
        fun io_write(buf: NativeString, len: Int): Int is extern "file_NativeFile_NativeFile_io_write_2"
        fun io_close: Int is extern "file_NativeFile_NativeFile_io_close_0"
        fun file_stat: FileStat is extern "file_NativeFile_NativeFile_file_stat_0"
+       fun fileno: Int `{ return fileno(recv); `}
 
        new io_open_read(path: NativeString) is extern "file_NativeFileCapable_NativeFileCapable_io_open_read_1"
        new io_open_write(path: NativeString) is extern "file_NativeFileCapable_NativeFileCapable_io_open_write_1"