Imported Upstream version 6.8.0.73

Former-commit-id: d18deab1b47cfd3ad8cba82b3f37d00eec2170af
2019-12-10 18:00:56 +00:00
parent bceda29824
commit 73ee7591e8
1043 changed files with 16271 additions and 22080 deletions
--- a/mcs/class/Mono.Posix/Test/Mono.Unix.Native/OFDLockTest.cs
+++ b/mcs/class/Mono.Posix/Test/Mono.Unix.Native/OFDLockTest.cs
@@ -0,0 +1,133 @@
+//
+// Tests for FcntlCommand.F_OFD_{GETLK,SETLK,SETLKW}
+//
+// Authors:
+//  Steffen Kiess (kiess@ki4.de)
+//
+// Copyright (C) 2019 Steffen Kiess
+//
+
+using System;
+using System.IO;
+using System.Net;
+using System.Net.Sockets;
+using System.Runtime.InteropServices;
+
+using Mono.Unix;
+using Mono.Unix.Native;
+
+using NUnit.Framework;
+
+namespace MonoTests.Mono.Unix.Native
+{
+	[TestFixture, Category ("NotDotNet"), Category ("NotOnWindows"), Category ("NotOnMac")]
+	public class OFDLockTest {
+
+		string TempFolder;
+
+		[SetUp]
+		public void SetUp ()
+		{
+			TempFolder = Path.Combine (Path.GetTempPath (), this.GetType ().FullName);
+
+			if (Directory.Exists (TempFolder))
+				Directory.Delete (TempFolder, true);
+
+			Directory.CreateDirectory (TempFolder);
+		}
+
+		[TearDown]
+		public void TearDown()
+		{
+			if (Directory.Exists (TempFolder))
+				Directory.Delete (TempFolder, true);
+		}
+
+		[Test]
+		public void TestOFDLock ()
+		{
+			int fd1 = Syscall.open (TempFolder + "/testfile", OpenFlags.O_RDWR | OpenFlags.O_CREAT | OpenFlags.O_EXCL, FilePermissions.DEFFILEMODE);
+			if (fd1 < 0)
+				UnixMarshal.ThrowExceptionForLastError ();
+			int fd2 = Syscall.open (TempFolder + "/testfile", OpenFlags.O_RDWR);
+			if (fd2 < 0)
+				UnixMarshal.ThrowExceptionForLastError ();
+			int fd3 = Syscall.open (TempFolder + "/testfile", OpenFlags.O_RDWR);
+			if (fd3 < 0)
+				UnixMarshal.ThrowExceptionForLastError ();
+
+			// Get read lock for first 100 bytes on fd1
+			var flock1 = new Flock {
+				l_type = LockType.F_RDLCK,
+				l_whence = SeekFlags.SEEK_SET,
+				l_start = 0,
+				l_len = 100,
+			};
+			if (Syscall.fcntl (fd1, FcntlCommand.F_OFD_SETLKW, ref flock1) < 0) {
+				// Old kernels and non-linux systems should return EINVAL
+				if (Stdlib.GetLastError () == Errno.EINVAL)
+					Assert.Ignore ("F_OFD_SETLKW does not seem to be supported.");
+				UnixMarshal.ThrowExceptionForLastError ();
+			}
+
+			// Get read lock for first 100 bytes on fd2
+			var flock2 = new Flock {
+				l_type = LockType.F_RDLCK,
+				l_whence = SeekFlags.SEEK_SET,
+				l_start = 0,
+				l_len = 100,
+			};
+			if (Syscall.fcntl (fd2, FcntlCommand.F_OFD_SETLK, ref flock2) < 0)
+				UnixMarshal.ThrowExceptionForLastError ();
+
+			// Get write lock for remaining bytes on fd1
+			var flock3 = new Flock {
+				l_type = LockType.F_WRLCK,
+				l_whence = SeekFlags.SEEK_SET,
+				l_start = 100,
+				l_len = 0,
+			};
+			if (Syscall.fcntl (fd1, FcntlCommand.F_OFD_SETLK, ref flock3) < 0)
+				UnixMarshal.ThrowExceptionForLastError ();
+
+			// Close fd3, should not release lock
+			if (Syscall.close (fd3) < 0)
+				UnixMarshal.ThrowExceptionForLastError ();
+			
+			// Get lock status for byte 150 from fd2
+			var flock4 = new Flock {
+				l_type = LockType.F_RDLCK,
+				l_whence = SeekFlags.SEEK_SET,
+				l_start = 150,
+				l_len = 1,
+			};
+			if (Syscall.fcntl (fd2, FcntlCommand.F_OFD_GETLK, ref flock4) < 0)
+				UnixMarshal.ThrowExceptionForLastError ();
+			// There should be a conflicting write lock
+			Assert.AreEqual (LockType.F_WRLCK, flock4.l_type);
+
+			// Get write byte 0 on fd1, should fail with EAGAIN
+			var flock5 = new Flock {
+				l_type = LockType.F_WRLCK,
+				l_whence = SeekFlags.SEEK_SET,
+				l_start = 0,
+				l_len = 1,
+			};
+			var res = Syscall.fcntl (fd1, FcntlCommand.F_OFD_SETLK, ref flock5);
+			Assert.AreEqual (-1, res);
+			Assert.AreEqual (Errno.EAGAIN, Stdlib.GetLastError ());
+			
+			if (Syscall.close (fd1) < 0)
+				UnixMarshal.ThrowExceptionForLastError ();
+			if (Syscall.close (fd2) < 0)
+				UnixMarshal.ThrowExceptionForLastError ();
+		}
+	}
+}
+
+// vim: noexpandtab
+// Local Variables: 
+// tab-width: 4
+// c-basic-offset: 4
+// indent-tabs-mode: t
+// End: