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fix bug for large counts: used a one-byte buffer.

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R=rsc
CC=golang-dev
https://golang.org/cl/174082
This commit is contained in:
Rob Pike 2009-12-13 07:27:43 +11:00
parent 222462ed4f
commit 687777710b
1 changed files with 2 additions and 3 deletions
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5
src/pkg/gob/decoder.go
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@ -23,7 +23,7 @@ type Decoder struct {
state *decodeState; // reads data from in-memory buffer
countState *decodeState; // reads counts from wire
buf []byte;
oneByte []byte;
countBuf [9]byte; // counts may be uint64s (unlikely!), require 9 bytes
}
// NewDecoder returns a new decoder that reads from the io.Reader.
@ -34,7 +34,6 @@ func NewDecoder(r io.Reader) *Decoder {
dec.state = newDecodeState(nil); // buffer set in Decode(); rest is unimportant
dec.decoderCache = make(map[reflect.Type]map[typeId]**decEngine);
dec.ignorerCache = make(map[typeId]**decEngine);
dec.oneByte = make([]byte, 1);
return dec;
}
@ -73,7 +72,7 @@ func (dec *Decoder) Decode(e interface{}) os.Error {
for {
// Read a count.
var nbytes uint64;
nbytes, dec.state.err = decodeUintReader(dec.r, dec.oneByte);
nbytes, dec.state.err = decodeUintReader(dec.r, dec.countBuf[0:]);
if dec.state.err != nil {
break
}