forked from enlightenment/efl
143 lines
3.1 KiB
C#
143 lines
3.1 KiB
C#
#pragma warning disable 1591
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using System;
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using System.Runtime.InteropServices;
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using System.ComponentModel;
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namespace Eina
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{
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/// <summary>
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/// Basic interface for both slice types.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public interface ISliceBase
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{
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/// <summary>
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/// The length of this slice in bytes.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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UIntPtr Len {get;set;}
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/// <summary>
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/// The contents of this slice.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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IntPtr Mem {get;set;}
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/// <summary>
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/// The length in bytes as an integer.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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int Length {get;set;}
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};
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/// <summary>Pointer to a slice of native memory.
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///
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/// Since EFL 1.23.
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/// </summary>
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[StructLayout(LayoutKind.Sequential)]
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public struct Slice : ISliceBase
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{
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/// <summary>
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/// The length of this slice.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public UIntPtr Len {get;set;}
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/// <summary>
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/// The contents of this slice.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public IntPtr Mem {get;set;}
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/// <summary>
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/// The length as an integer.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public int Length
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{
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get { return (int)Len; }
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set { Len = (UIntPtr)value; }
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}
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/// <summary>
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/// Creates a new slice from the given memory and length.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="mem">The memory slice.</param>
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/// <param name="len">The length.</param>
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public Slice(IntPtr mem, UIntPtr len)
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{
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Mem = mem;
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Len = len;
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}
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}
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/// <summary>Pointer to a slice of native memory.
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///
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/// Since EFL 1.23.
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/// </summary>
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[StructLayout(LayoutKind.Sequential)]
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public struct RwSlice : ISliceBase
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{
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/// <summary>
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/// The length of this slice.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public UIntPtr Len {get;set;}
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/// <summary>
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/// The contents of this slice.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public IntPtr Mem {get;set;}
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/// <summary>
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/// The length as an integer.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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public int Length
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{
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get { return (int)Len; }
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set { Len = (UIntPtr)value; }
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}
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/// <summary>
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/// Creates a new slice from the given memory and length.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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/// <param name="mem">The memory slice.</param>
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/// <param name="len">The length.</param>
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public RwSlice(IntPtr mem, UIntPtr len)
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{
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Mem = mem;
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Len = len;
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}
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/// <summary>
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/// Returns a read-only slice from this writable memory.
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/// <para>Since EFL 1.23.</para>
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/// </summary>
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Slice ToSlice()
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{
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var r = new Slice();
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r.Mem = Mem;
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r.Len = Len;
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return r;
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}
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}
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}
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public static class Eina_SliceUtils
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{
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public static byte[] GetBytes(this Eina.ISliceBase slc)
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{
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var size = (int)(slc.Len);
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byte[] mArray = new byte[size];
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Marshal.Copy(slc.Mem, mArray, 0, size);
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return mArray;
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}
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}
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