public static PhpStream GetValid(PhpResource handle, FileAccess desiredAccess)
{
PhpStream result = GetValid(handle);
if (result != null)
{
if ((desiredAccess & FileAccess.Write) != 0 && !result.CanWrite)
{
PhpException.Throw(PhpError.Warning, ErrResources.stream_write_off);
return null;
}
if ((desiredAccess & FileAccess.Read) != 0 && !result.CanRead)
{
PhpException.Throw(PhpError.Warning, ErrResources.stream_read_off);
return null;
}
}
return result;
}
/// <summary>
/// Check that the resource handle contains a valid
/// PhpStream resource and cast the handle to PhpStream.
/// </summary>
/// <param name="handle">A PhpResource passed to the PHP function.</param>
/// <returns>The handle cast to PhpStream.</returns>
public static PhpStream GetValid(PhpResource handle)
{
var result = handle as PhpStream;
if (result != null && result.IsValid)
{
return result;
}
else
{
PhpException.Throw(PhpError.Warning, ErrResources.invalid_stream_resource);
return null;
}
}
/// <summary>
/// Checks the context for validity, throws a warning it is not.
/// </summary>
/// <param name="resource">Resource which should contain a StreamContext.</param>
/// <param name="allowNull"><c>True</c> to allow <c>NULL</c> context, that will be without any warning converted to Default <see cref="StreamContext"/>.</param>
/// <returns>The given resource cast to <see cref="StreamContext"/> or <c>null</c> if invalid and <c>allowNull</c> is <c>false</c>.</returns>
/// <exception cref="PhpException">In case the context is invalid.</exception>
public static StreamContext GetValid(PhpResource resource, bool allowNull)
{
// implicit default from NULL
if (allowNull && resource == null)
return StreamContext.Default;
// try to cast to StreamContext
var result = resource as StreamContext;
if (result != null /* TODO: Why is default context disposed? && result.IsValid*/)
return result;
//PhpException.Throw(PhpError.Warning, CoreResources.GetString("invalid_context_resource"));
//return null;
throw new NotImplementedException();
}
/// <summary> /// Checks the context for validity, throws a warning it is not. /// </summary> /// <param name="resource">Resource which should contain a StreamContext.</param> /// <returns>The given resource cast to <see cref="StreamContext"/> or <c>null</c> if invalid.</returns> /// <exception cref="PhpException">In case the context is invalid.</exception> public static StreamContext GetValid(PhpResource resource) => GetValid(resource, false);
public static string get_resource_type(PhpResource resource) => resource?.TypeName;
new public static SocketStream GetValid(PhpResource handle)
{
SocketStream result = handle as SocketStream;
if (result == null)
PhpException.Throw(PhpError.Warning, ErrResources.invalid_socket_stream_resource);
return result;
}
