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author | 2025-03-09 17:47:56 +0100 | |
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committer | 2025-03-10 01:59:49 +0100 | |
commit | 3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch) | |
tree | f61faa581feaaeaba2542b9f2b8234a590684413 /vendor/github.com/twitchyliquid64/golang-asm/bio/buf.go | |
parent | [chore] update URLs to forked source (diff) | |
download | gotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz |
[chore] remove vendor
Diffstat (limited to 'vendor/github.com/twitchyliquid64/golang-asm/bio/buf.go')
-rw-r--r-- | vendor/github.com/twitchyliquid64/golang-asm/bio/buf.go | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/vendor/github.com/twitchyliquid64/golang-asm/bio/buf.go b/vendor/github.com/twitchyliquid64/golang-asm/bio/buf.go deleted file mode 100644 index c4c251490..000000000 --- a/vendor/github.com/twitchyliquid64/golang-asm/bio/buf.go +++ /dev/null @@ -1,148 +0,0 @@ -// Copyright 2015 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 bio implements common I/O abstractions used within the Go toolchain. -package bio - -import ( - "bufio" - "io" - "log" - "os" -) - -// Reader implements a seekable buffered io.Reader. -type Reader struct { - f *os.File - *bufio.Reader -} - -// Writer implements a seekable buffered io.Writer. -type Writer struct { - f *os.File - *bufio.Writer -} - -// Create creates the file named name and returns a Writer -// for that file. -func Create(name string) (*Writer, error) { - f, err := os.Create(name) - if err != nil { - return nil, err - } - return &Writer{f: f, Writer: bufio.NewWriter(f)}, nil -} - -// Open returns a Reader for the file named name. -func Open(name string) (*Reader, error) { - f, err := os.Open(name) - if err != nil { - return nil, err - } - return NewReader(f), nil -} - -// NewReader returns a Reader from an open file. -func NewReader(f *os.File) *Reader { - return &Reader{f: f, Reader: bufio.NewReader(f)} -} - -func (r *Reader) MustSeek(offset int64, whence int) int64 { - if whence == 1 { - offset -= int64(r.Buffered()) - } - off, err := r.f.Seek(offset, whence) - if err != nil { - log.Fatalf("seeking in output: %v", err) - } - r.Reset(r.f) - return off -} - -func (w *Writer) MustSeek(offset int64, whence int) int64 { - if err := w.Flush(); err != nil { - log.Fatalf("writing output: %v", err) - } - off, err := w.f.Seek(offset, whence) - if err != nil { - log.Fatalf("seeking in output: %v", err) - } - return off -} - -func (r *Reader) Offset() int64 { - off, err := r.f.Seek(0, 1) - if err != nil { - log.Fatalf("seeking in output [0, 1]: %v", err) - } - off -= int64(r.Buffered()) - return off -} - -func (w *Writer) Offset() int64 { - if err := w.Flush(); err != nil { - log.Fatalf("writing output: %v", err) - } - off, err := w.f.Seek(0, 1) - if err != nil { - log.Fatalf("seeking in output [0, 1]: %v", err) - } - return off -} - -func (r *Reader) Close() error { - return r.f.Close() -} - -func (w *Writer) Close() error { - err := w.Flush() - err1 := w.f.Close() - if err == nil { - err = err1 - } - return err -} - -func (r *Reader) File() *os.File { - return r.f -} - -func (w *Writer) File() *os.File { - return w.f -} - -// Slice reads the next length bytes of r into a slice. -// -// This slice may be backed by mmap'ed memory. Currently, this memory -// will never be unmapped. The second result reports whether the -// backing memory is read-only. -func (r *Reader) Slice(length uint64) ([]byte, bool, error) { - if length == 0 { - return []byte{}, false, nil - } - - data, ok := r.sliceOS(length) - if ok { - return data, true, nil - } - - data = make([]byte, length) - _, err := io.ReadFull(r, data) - if err != nil { - return nil, false, err - } - return data, false, nil -} - -// SliceRO returns a slice containing the next length bytes of r -// backed by a read-only mmap'd data. If the mmap cannot be -// established (limit exceeded, region too small, etc) a nil slice -// will be returned. If mmap succeeds, it will never be unmapped. -func (r *Reader) SliceRO(length uint64) []byte { - data, ok := r.sliceOS(length) - if ok { - return data - } - return nil -} |