for TARGET_J2EE only:

[mono.git] / mcs / class / Mono.Posix / Mono.Unix / FileHandleOperations.cs

diff --git a/mcs/class/Mono.Posix/Mono.Unix/FileHandleOperations.cs b/mcs/class/Mono.Posix/Mono.Unix/FileHandleOperations.cs
index 22519934c2b0a9c98c8b9015917a883b0bd8d050..89cdb2ce5edffef557c6dcab251ce85b6f5a1c6a 100644 (file)
--- a/mcs/class/Mono.Posix/Mono.Unix/FileHandleOperations.cs
+++ b/mcs/class/Mono.Posix/Mono.Unix/FileHandleOperations.cs
@@ -51,6 +51,8 @@ namespace Mono.Unix {
 
                public static void AdviseFileAccessPattern (FileStream file, FileAccessPattern pattern, long offset, long len)
                {
+                       if (file == null)
+                               throw new ArgumentNullException ("file");
                        int r = Native.Syscall.posix_fadvise (file.Handle.ToInt32(), offset, len,
                                (Native.PosixFadviseAdvice) pattern);
                        UnixMarshal.ThrowExceptionForLastErrorIf (r);
@@ -63,6 +65,8 @@ namespace Mono.Unix {
 
                public static void AdviseFileAccessPattern (UnixStream stream, FileAccessPattern pattern, long offset, long len)
                {
+                       if (stream == null)
+                               throw new ArgumentNullException ("stream");
                        int r = Native.Syscall.posix_fadvise (stream.Handle, offset, len,
                                (Native.PosixFadviseAdvice) pattern);
                        UnixMarshal.ThrowExceptionForLastErrorIf (r);