44 lines
795 B
Go
44 lines
795 B
Go
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package torrentfs
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import (
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"context"
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"fmt"
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"bazil.org/fuse"
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"bazil.org/fuse/fs"
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)
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type fileHandle struct {
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fn fileNode
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}
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var _ fs.HandleReader = fileHandle{}
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func (me fileHandle) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
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torrentfsReadRequests.Add(1)
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if req.Dir {
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panic("read on directory")
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}
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size := req.Size
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fileLeft := int64(me.fn.size) - req.Offset
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if fileLeft < 0 {
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fileLeft = 0
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}
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if fileLeft < int64(size) {
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size = int(fileLeft)
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}
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resp.Data = resp.Data[:size]
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if len(resp.Data) == 0 {
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return nil
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}
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torrentOff := me.fn.TorrentOffset + req.Offset
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n, err := readFull(ctx, me.fn.FS, me.fn.t, torrentOff, resp.Data)
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if err != nil {
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return err
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}
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if n != size {
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panic(fmt.Sprintf("%d < %d", n, size))
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}
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return nil
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}
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