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use buffered channels, as per Robs suggestion

This commit is contained in:
Miek Gieben 2012-07-03 20:06:02 +02:00
parent 3ec7e23c2e
commit a3fb69689b
1 changed files with 8 additions and 3 deletions
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11
zscan.go
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@ -105,7 +105,7 @@ func NewRR(s string) (RR, error) {
// ReadRR reads the RR contained in q. Only the first RR is returned.
// The class defaults to IN and TTL defaults to DefaultTtl.
func ReadRR(q io.Reader, filename string) (RR, error) {
r := <-ParseZone(q, ".", filename)
r := <-parseZoneHelper(q, ".", filename, 1)
if r.Error != nil {
return nil, r.Error
}
@ -129,9 +129,14 @@ func ReadRR(q io.Reader, filename string) (RR, error) {
// }
// }
func ParseZone(r io.Reader, origin, file string) chan Token {
t := make(chan Token)
return parseZoneHelper(r, origin, file, 10000)
}
func parseZoneHelper(r io.Reader, origin, file string, chansize int) chan Token {
t := make(chan Token, chansize)
go parseZone(r, origin, file, t, 0)
return t
}
func parseZone(r io.Reader, origin, f string, t chan Token, include int) {
@ -141,7 +146,7 @@ func parseZone(r io.Reader, origin, f string, t chan Token, include int) {
}
}()
s := scanInit(r)
c := make(chan lex)
c := make(chan lex, 1000)
// Start the lexer
go zlexer(s, c)
// 6 possible beginnings of a line, _ is a space