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fs: introduces aliases for OpenWriterAtFn and OpenChunkWriterFn

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This commit is contained in:
Nick Craig-Wood 2023-08-14 18:04:42 +01:00
parent 0dea83a4aa
commit b4e3332e02
2 changed files with 8 additions and 1 deletions
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6
fs/features.go
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@ -636,6 +636,9 @@ type OpenWriterAter interface {
OpenWriterAt(ctx context.Context, remote string, size int64) (WriterAtCloser, error) OpenWriterAt(ctx context.Context, remote string, size int64) (WriterAtCloser, error)
} }
// OpenWriterAtFn describes the OpenWriterAt function pointer
type OpenWriterAtFn func(ctx context.Context, remote string, size int64) (WriterAtCloser, error)
type OpenChunkWriter interface { type OpenChunkWriter interface {
// OpenChunkWriter returns the chunk size and a ChunkWriter // OpenChunkWriter returns the chunk size and a ChunkWriter
// //
@ -644,6 +647,9 @@ type OpenChunkWriter interface {
OpenChunkWriter(ctx context.Context, remote string, src ObjectInfo, options ...OpenOption) (chunkSize int64, writer ChunkWriter, err error) OpenChunkWriter(ctx context.Context, remote string, src ObjectInfo, options ...OpenOption) (chunkSize int64, writer ChunkWriter, err error)
} }
// OpenChunkWriterFn describes the OpenChunkWriter function pointer
type OpenChunkWriterFn func(ctx context.Context, remote string, src ObjectInfo, options ...OpenOption) (chunkSize int64, writer ChunkWriter, err error)
type ChunkWriter interface { type ChunkWriter interface {
// WriteChunk will write chunk number with reader bytes, where chunk number >= 0 // WriteChunk will write chunk number with reader bytes, where chunk number >= 0
WriteChunk(chunkNumber int, reader io.ReadSeeker) (bytesWritten int64, err error) WriteChunk(chunkNumber int, reader io.ReadSeeker) (bytesWritten int64, err error)

3
fs/operations/multithread.go
View file

@ -277,7 +277,8 @@ func (w writerAtChunkWriter) Abort() error {
return obj.Remove(w.ctx) return obj.Remove(w.ctx)
} }
func openChunkWriterFromOpenWriterAt(openWriterAt func(ctx context.Context, remote string, size int64) (fs.WriterAtCloser, error), chunkSize int64, writeBufferSize int64, f fs.Fs) func(ctx context.Context, remote string, src fs.ObjectInfo, options ...fs.OpenOption) (chunkSizeResult int64, writer fs.ChunkWriter, err error) { // openChunkWriterFromOpenWriterAt adapts an OpenWriterAtFn into an OpenChunkWriterFn using chunkSize and writeBufferSize
func openChunkWriterFromOpenWriterAt(openWriterAt fs.OpenWriterAtFn, chunkSize int64, writeBufferSize int64, f fs.Fs) fs.OpenChunkWriterFn {
return func(ctx context.Context, remote string, src fs.ObjectInfo, options ...fs.OpenOption) (chunkSizeResult int64, writer fs.ChunkWriter, err error) { return func(ctx context.Context, remote string, src fs.ObjectInfo, options ...fs.OpenOption) (chunkSizeResult int64, writer fs.ChunkWriter, err error) {
writerAt, err := openWriterAt(ctx, remote, src.Size()) writerAt, err := openWriterAt(ctx, remote, src.Size())
if err != nil { if err != nil {