gmp/nswrap
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Use C.GoBytes() in examples/bluetooth.

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This commit is contained in:
Greg 2019-05-10 02:35:52 -04:00
parent 2fe435f137
commit 49fd749fe3
1 changed files with 3 additions and 12 deletions
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15
examples/bluetooth/main.go
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@ -5,7 +5,6 @@ import "C"
import ( import (
"encoding/binary" "encoding/binary"
"fmt" "fmt"
"unsafe"
"gitlab.wow.st/gmp/nswrap/examples/bluetooth/ns" "gitlab.wow.st/gmp/nswrap/examples/bluetooth/ns"
) )
@ -59,24 +58,16 @@ func discoverServices(p *ns.CBPeripheral, e *ns.NSError) {
} }
func hr(d *ns.NSData) int { func hr(d *ns.NSData) int {
var x []byte
if l := int(d.Length()); l < 4 { if l := int(d.Length()); l < 4 {
return 0 return 0
} else {
bs := d.Bytes()
x = make([]byte,l)
for i := 0; i < l; i++ {
x[i] = *(*byte)(unsafe.Pointer(uintptr(bs) + uintptr(i)))
} }
} x := C.GoBytes(d.Bytes(),4)
var hr int
flags := x[0] flags := x[0]
if flags & 0x80 != 0 { // uint16 format if flags & 0x80 != 0 { // uint16 format
hr = int(binary.BigEndian.Uint16(x[1:2])) return int(binary.BigEndian.Uint16(x[1:2]))
} else { } else {
hr = int(x[1]) return int(x[1])
} }
return hr
} }
func discoverCharacteristics(p *ns.CBPeripheral, s *ns.CBService, e *ns.NSError) { func discoverCharacteristics(p *ns.CBPeripheral, s *ns.CBService, e *ns.NSError) {