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Make IStorage array read/write extension methods

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Alex Barney 2019-01-22 20:57:19 -06:00
parent 42044d02ba
commit 6e2fa012c2
1 changed files with 20 additions and 1 deletions
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21
src/LibHac/IO/StorageExtensions.cs
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@ -6,6 +6,25 @@ namespace LibHac.IO
{ {
public static class StorageExtensions public static class StorageExtensions
{ {
public static void Read(this IStorage storage, byte[] buffer, long offset, int count, int bufferOffset)
{
ValidateStorageParameters(buffer, offset, count, bufferOffset);
storage.Read(buffer.AsSpan(bufferOffset, count), offset);
}
public static void Write(this IStorage storage, byte[] buffer, long offset, int count, int bufferOffset)
{
ValidateStorageParameters(buffer, offset, count, bufferOffset);
storage.Write(buffer.AsSpan(bufferOffset, count), offset);
}
private static void ValidateStorageParameters(byte[] buffer, long offset, int count, int bufferOffset)
{
if (buffer == null) throw new ArgumentNullException(nameof(buffer));
if (offset < 0) throw new ArgumentOutOfRangeException(nameof(offset), "Argument must be non-negative.");
if (count < 0) throw new ArgumentOutOfRangeException(nameof(count), "Argument must be non-negative.");
if (bufferOffset < 0) throw new ArgumentOutOfRangeException(nameof(bufferOffset), "Argument must be non-negative.");
}
public static IStorage Slice(this IStorage storage, long start) public static IStorage Slice(this IStorage storage, long start)
{ {
if (storage.Length == -1) if (storage.Length == -1)
@ -93,7 +112,7 @@ namespace LibHac.IO
while (remaining > 0) while (remaining > 0)
{ {
int toWrite = (int) Math.Min(buffer.Length, remaining); int toWrite = (int)Math.Min(buffer.Length, remaining);
input.Read(buffer.AsSpan(0, toWrite), inOffset); input.Read(buffer.AsSpan(0, toWrite), inOffset);
output.Write(buffer, 0, toWrite); output.Write(buffer, 0, toWrite);