util/buffer: add Reset() method
closes #402 Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
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@@ -67,6 +67,12 @@ func (b *SeekerBuffer) Close() error {
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return nil
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}
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// Reset clears all the data out of the buffer and sets the read position to 0.
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func (b *SeekerBuffer) Reset() {
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b.data = nil
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b.pos = 0
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}
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// Len returns the length of data remaining to be read.
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func (b *SeekerBuffer) Len() int {
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return len(b.data[b.pos:])
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