Writing data out with error handling
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parent
97b2e7fb3b
commit
8129d8fd0b
1 changed files with 41 additions and 13 deletions
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@ -18,6 +18,7 @@ package v1
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import (
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"encoding/binary"
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"errors"
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"io"
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)
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@ -97,18 +98,45 @@ func (donut *Donut) Write(gobHeader GobHeader, object io.Reader) error {
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}
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func (donut *Donut) WriteFormat(target io.Writer, donutFormat DonutFormat) error {
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err := binary.Write(target, binary.LittleEndian, donutFormat.BlockStart)
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err = binary.Write(target, binary.LittleEndian, donutFormat.VersionMajor)
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err = binary.Write(target, binary.LittleEndian, donutFormat.VersionMinor)
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err = binary.Write(target, binary.LittleEndian, donutFormat.VersionPatch)
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err = binary.Write(target, binary.LittleEndian, donutFormat.VersionReserved)
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err = binary.Write(target, binary.LittleEndian, donutFormat.Reserved)
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err = binary.Write(target, binary.LittleEndian, donutFormat.GobHeaderLen)
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err = binary.Write(target, binary.LittleEndian, donutFormat.GobHeader)
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err = binary.Write(target, binary.LittleEndian, donutFormat.BlockData)
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err = binary.Write(target, binary.LittleEndian, donutFormat.Data)
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err = binary.Write(target, binary.LittleEndian, donutFormat.BlockLen)
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err = binary.Write(target, binary.LittleEndian, donutFormat.BlockEnd)
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if err := binary.Write(target, binary.LittleEndian, donutFormat.BlockStart); err != nil {
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return err
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.VersionMajor); err != nil {
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return err
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.VersionMinor); err != nil {
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return err
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.VersionPatch); err != nil {
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return err
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.VersionReserved); err != nil {
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return err
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.Reserved); err != nil {
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return err
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.GobHeaderLen); err != nil {
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return err
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.GobHeader); err != nil {
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return err
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.BlockData); err != nil {
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return err
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}
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if count, err := io.Copy(target, donutFormat.Data); uint64(count) != donutFormat.BlockLen || err != nil {
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if err == nil {
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return err
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}
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return errors.New("Copy failed, count incorrect.")
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.BlockLen); err != nil {
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return err
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}
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if err := binary.Write(target, binary.LittleEndian, donutFormat.BlockEnd); err != nil {
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return err
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}
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return err
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return nil
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}
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