74 lines
2.5 KiB
C#
74 lines
2.5 KiB
C#
|
namespace Unosquare.RaspberryIO.Native
|
|||
|
|
{
|
|||
|
|
using Swan;
|
|||
|
|
using System;
|
|||
|
|
using System.Runtime.InteropServices;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Represents a low-level exception, typically thrown when return codes from a
|
|||
|
|
/// low-level operation is non-zero or in some cases when it is less than zero.
|
|||
|
|
/// </summary>
|
|||
|
|
/// <seealso cref="Exception" />
|
|||
|
|
public class HardwareException : Exception
|
|||
|
|
{
|
|||
|
|
/// <summary>
|
|||
|
|
/// Initializes a new instance of the <see cref="HardwareException" /> class.
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="errorCode">The error code.</param>
|
|||
|
|
/// <param name="component">The component.</param>
|
|||
|
|
public HardwareException(int errorCode, string component)
|
|||
|
|
: base($"A hardware exception occurred. Error Code: {errorCode}")
|
|||
|
|
{
|
|||
|
|
ExtendedMessage = null;
|
|||
|
|
|
|||
|
|
try
|
|||
|
|
{
|
|||
|
|
ExtendedMessage = Standard.Strerror(errorCode);
|
|||
|
|
}
|
|||
|
|
catch
|
|||
|
|
{
|
|||
|
|
// TODO: strerror not working great...
|
|||
|
|
$"Could not retrieve native error description using {nameof(Standard.Strerror)}".Error(Pi.LoggerSource);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
ErrorCode = errorCode;
|
|||
|
|
Component = component;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets the error code.
|
|||
|
|
/// </summary>
|
|||
|
|
/// <value>
|
|||
|
|
/// The error code.
|
|||
|
|
/// </value>
|
|||
|
|
public int ErrorCode { get; }
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets the component.
|
|||
|
|
/// </summary>
|
|||
|
|
/// <value>
|
|||
|
|
/// The component.
|
|||
|
|
/// </value>
|
|||
|
|
public string Component { get; }
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets the extended message (could be null).
|
|||
|
|
/// </summary>
|
|||
|
|
/// <value>
|
|||
|
|
/// The extended message.
|
|||
|
|
/// </value>
|
|||
|
|
public string ExtendedMessage { get; }
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Throws a new instance of a hardware error by retrieving the last error number (errno).
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="className">Name of the class.</param>
|
|||
|
|
/// <param name="methodName">Name of the method.</param>
|
|||
|
|
/// <exception cref="HardwareException">When an error thrown by an API call occurs</exception>
|
|||
|
|
public static void Throw(string className, string methodName) => throw new HardwareException(Marshal.GetLastWin32Error(), $"{className}.{methodName}");
|
|||
|
|
|
|||
|
|
/// <inheritdoc />
|
|||
|
|
public override string ToString() => $"{GetType()}{(string.IsNullOrWhiteSpace(Component) ? string.Empty : $" on {Component}")}: ({ErrorCode}) - {Message}";
|
|||
|
|
}
|
|||
|
|
}
|