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finish ChanValue: Len and Cap.

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R=r
DELTA=45  (45 added, 0 deleted, 0 changed)
OCL=33873
CL=33881
This commit is contained in:
Russ Cox 2009-08-26 12:42:22 -07:00
parent 653cef1ba0
commit de7920e6fd
5 changed files with 45 additions and 0 deletions
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12
src/pkg/reflect/value.go
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@ -636,6 +636,8 @@ func chansend(ch, val *byte, pres *bool)
func chanrecv(ch, val *byte, pres *bool)
func chanclosed(ch *byte) bool
func chanclose(ch *byte)
func chanlen(ch *byte) int32
func chancap(ch *byte) int32
// Closed returns the result of closed(c) on the underlying channel.
func (v *ChanValue) Closed() bool {
@ -649,6 +651,16 @@ func (v *ChanValue) Close() {
chanclose(ch);
}
func (v *ChanValue) Len() int {
ch := *(**byte)(v.addr);
return int(chanlen(ch));
}
func (v *ChanValue) Cap() int {
ch := *(**byte)(v.addr);
return int(chancap(ch));
}
// internal send; non-blocking if b != nil
func (v *ChanValue) send(x Value, b *bool) {
t := v.Type().(*ChanType);