/// <summary>Returns the file stat for a file descriptor.</summary>
/// <param name="fd">file descriptor.</param>
/// <returns>the file descriptor file stat.</returns>
/// <exception cref="System.IO.IOException">thrown if there was an IO error while obtaining the file stat.
/// </exception>
public static NativeIO.POSIX.Stat GetFstat(FileDescriptor fd)
{
NativeIO.POSIX.Stat stat = null;
if (!Shell.Windows)
{
stat = Fstat(fd);
stat.owner = GetName(NativeIO.POSIX.IdCache.User, stat.ownerId);
stat.group = GetName(NativeIO.POSIX.IdCache.Group, stat.groupId);
}
else
{
try
{
stat = Fstat(fd);
}
catch (NativeIOException nioe)
{
if (nioe.GetErrorCode() == 6)
{
throw new NativeIOException("The handle is invalid.", Errno.Ebadf);
}
else
{
Log.Warn(string.Format("NativeIO.getFstat error (%d): %s", nioe.GetErrorCode(), nioe
.Message));
throw new NativeIOException("Unknown error", Errno.Unknown);
}
}
}
return(stat);
}
/// <exception cref="System.Exception"/>
public virtual void TestFstat()
{
FileOutputStream fos = new FileOutputStream(new FilePath(TestDir, "testfstat"));
NativeIO.POSIX.Stat stat = NativeIO.POSIX.GetFstat(fos.GetFD());
fos.Close();
Log.Info("Stat: " + stat.ToString());
string owner = stat.GetOwner();
string expectedOwner = Runtime.GetProperty("user.name");
if (Path.Windows)
{
UserGroupInformation ugi = UserGroupInformation.CreateRemoteUser(expectedOwner);
string adminsGroupString = "Administrators";
if (Arrays.AsList(ugi.GetGroupNames()).Contains(adminsGroupString))
{
expectedOwner = adminsGroupString;
}
}
Assert.Equal(expectedOwner, owner);
NUnit.Framework.Assert.IsNotNull(stat.GetGroup());
Assert.True(!stat.GetGroup().IsEmpty());
Assert.Equal("Stat mode field should indicate a regular file",
NativeIO.POSIX.Stat.SIfreg, stat.GetMode() & NativeIO.POSIX.Stat.SIfmt);
}
/// <exception cref="System.Exception"/>
public virtual void TestFstatClosedFd()
{
FileOutputStream fos = new FileOutputStream(new FilePath(TestDir, "testfstat2"));
fos.Close();
try
{
NativeIO.POSIX.Stat stat = NativeIO.POSIX.GetFstat(fos.GetFD());
}
catch (NativeIOException nioe)
{
Log.Info("Got expected exception", nioe);
Assert.Equal(Errno.Ebadf, nioe.GetErrno());
}
}
public override void Run()
{
long et = Time.Now() + 5000;
while (Time.Now() < et)
{
try
{
NativeIO.POSIX.Stat stat = NativeIO.POSIX.GetFstat(fos.GetFD());
Assert.Equal(Runtime.GetProperty("user.name"), stat.GetOwner()
);
NUnit.Framework.Assert.IsNotNull(stat.GetGroup());
Assert.True(!stat.GetGroup().IsEmpty());
Assert.Equal("Stat mode field should indicate a regular file",
NativeIO.POSIX.Stat.SIfreg, stat.GetMode() & NativeIO.POSIX.Stat.SIfmt);
}
catch (Exception t)
{
thrown.Set(t);
}
}
}
