diff options
Diffstat (limited to 'vendor/google.golang.org/api/gensupport/buffer.go')
| -rw-r--r-- | vendor/google.golang.org/api/gensupport/buffer.go | 77 | 
1 files changed, 0 insertions, 77 deletions
| diff --git a/vendor/google.golang.org/api/gensupport/buffer.go b/vendor/google.golang.org/api/gensupport/buffer.go deleted file mode 100644 index 4b8ec14..0000000 --- a/vendor/google.golang.org/api/gensupport/buffer.go +++ /dev/null @@ -1,77 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package gensupport - -import ( -	"bytes" -	"io" - -	"google.golang.org/api/googleapi" -) - -// ResumableBuffer buffers data from an io.Reader to support uploading media in retryable chunks. -type ResumableBuffer struct { -	media io.Reader - -	chunk []byte // The current chunk which is pending upload.  The capacity is the chunk size. -	err   error  // Any error generated when populating chunk by reading media. - -	// The absolute position of chunk in the underlying media. -	off int64 -} - -func NewResumableBuffer(media io.Reader, chunkSize int) *ResumableBuffer { -	return &ResumableBuffer{media: media, chunk: make([]byte, 0, chunkSize)} -} - -// Chunk returns the current buffered chunk, the offset in the underlying media -// from which the chunk is drawn, and the size of the chunk. -// Successive calls to Chunk return the same chunk between calls to Next. -func (rb *ResumableBuffer) Chunk() (chunk io.Reader, off int64, size int, err error) { -	// There may already be data in chunk if Next has not been called since the previous call to Chunk. -	if rb.err == nil && len(rb.chunk) == 0 { -		rb.err = rb.loadChunk() -	} -	return bytes.NewReader(rb.chunk), rb.off, len(rb.chunk), rb.err -} - -// loadChunk will read from media into chunk, up to the capacity of chunk. -func (rb *ResumableBuffer) loadChunk() error { -	bufSize := cap(rb.chunk) -	rb.chunk = rb.chunk[:bufSize] - -	read := 0 -	var err error -	for err == nil && read < bufSize { -		var n int -		n, err = rb.media.Read(rb.chunk[read:]) -		read += n -	} -	rb.chunk = rb.chunk[:read] -	return err -} - -// Next advances to the next chunk, which will be returned by the next call to Chunk. -// Calls to Next without a corresponding prior call to Chunk will have no effect. -func (rb *ResumableBuffer) Next() { -	rb.off += int64(len(rb.chunk)) -	rb.chunk = rb.chunk[0:0] -} - -type readerTyper struct { -	io.Reader -	googleapi.ContentTyper -} - -// ReaderAtToReader adapts a ReaderAt to be used as a Reader. -// If ra implements googleapi.ContentTyper, then the returned reader -// will also implement googleapi.ContentTyper, delegating to ra. -func ReaderAtToReader(ra io.ReaderAt, size int64) io.Reader { -	r := io.NewSectionReader(ra, 0, size) -	if typer, ok := ra.(googleapi.ContentTyper); ok { -		return readerTyper{r, typer} -	} -	return r -} | 
