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Merge pull request #996 from EinScott/bufstream-fixes

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more buffered stream stuff
This commit is contained in:
Brian Fiete 2021-12-15 07:19:25 -05:00 • committed by GitHub
commit 7b58863563
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2 changed files with 45 additions and 14 deletions
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21
BeefLibs/corlib/src/IO/BufferedStream.bf
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@ -19,7 +19,7 @@ namespace System.IO
set
{
mPos = Math.Min(value, Length);
mPos = value;
}
}
@ -43,20 +43,16 @@ namespace System.IO
public override Result<void> Seek(int64 pos, SeekKind seekKind = .Absolute)
{
int64 length = Length;
int64 newPos;
switch (seekKind)
{
case .Absolute:
mPos = Math.Min(pos, length);
if (pos > length)
return .Err;
mPos = pos;
case .FromEnd:
newPos = length - pos;
mPos = Length + pos;
case .Relative:
mPos = Math.Min(mPos + pos, length);
mPos = mPos + pos;
}
return .Ok;
}
@ -176,7 +172,12 @@ namespace System.IO
public override Result<void> Close()
{
return Flush();
let ret = Flush();
mPos = 0;
mBufferPos = -Int32.MinValue;
mBufferEnd = -Int32.MinValue;
return ret;
}
}
}

38
BeefLibs/corlib/src/IO/FileStream.bf
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@ -296,6 +296,15 @@ namespace System.IO
}
}
public override int64 Position
{
set
{
// Matches the behavior of Platform.BfpFile_Seek(mBfpFile, value, .Absolute);
mPos = Math.Max(value, 0);
}
}
public this()
{
@ -416,16 +425,37 @@ namespace System.IO
mFileAccess = access;
}
public override Result<void> Seek(int64 pos, SeekKind seekKind = .Absolute)
{
int64 newPos;
switch (seekKind)
{
case .Absolute:
newPos = pos;
case .FromEnd:
newPos = Length + pos;
case .Relative:
newPos = mPos + pos;
}
// Matches the behaviour of Platform.BfpFile_Seek(mBfpFile, value, .Absolute);
mPos = Math.Max(newPos, 0);
if (seekKind == .Absolute && newPos < 0)
return .Err;
return .Ok;
}
public override Result<void> Close()
{
var hadError = Flush() case .Err;
let ret = base.Close();
if (mBfpFile != null)
Platform.BfpFile_Release(mBfpFile);
mBfpFile = null;
mFileAccess = default;
if (hadError)
return .Err;
return .Ok;
mBfpFilePos = 0;
return ret;
}
protected override void UpdateLength()