// Receive packets in a loop until quit
func (nflog *NfLog) Loop() {
buflen := C.size_t(RecvBufferSize)
pbuf := C.malloc(buflen)
if pbuf == nil {
log.Fatal("No memory for malloc")
}
defer C.free(pbuf)
for {
nr, err := C.recv(nflog.fd, pbuf, buflen, 0)
select {
case <-nflog.quit:
return
default:
}
if nr < 0 || err != nil {
log.Printf("Recv failed: %s", err)
nflog.errors++
} else {
// Handle messages in packet reusing memory
ps := <-nflog.a.returnAddPackets
nflog.packets.index = 0
C.nflog_handle_packet(nflog.h, (*C.char)(pbuf), (C.int)(nr))
nflog.a.processAddPackets <- nflog.processPackets(ps[:0])
}
}
}
// Receive packets in a loop until quit
func (nflog *NfLog) Loop() {
buf := make([]byte, RecvBufferSize)
pbuf := unsafe.Pointer(&buf[0])
buflen := C.size_t(len(buf))
for !nflog.quit {
nr := C.recv(nflog.fd, pbuf, buflen, 0)
if nr < 0 {
log.Printf("Recvfrom failed: %s", strerror())
nflog.errors++
} else {
// Handle messages in packet reusing memory
ps := <-nflog.a.returnAddPackets
nflog.addPackets = ps[:0]
C.nflog_handle_packet(nflog.h, (*C.char)(pbuf), (C.int)(nr))
nflog.a.processAddPackets <- nflog.addPackets
nflog.addPackets = nil
}
}
}
// transact calls a method on a Java object instance.
// It blocks until the call is complete.
func transact(ref *seq.Ref, _ string, code int, inBuf *seq.Buffer) *seq.Buffer {
var (
out *C.uint8_t = nil
outLen C.size_t = 0
in *C.uint8_t = nil
inLen C.size_t = 0
)
if len(inBuf.Data) > 0 {
in = (*C.uint8_t)(unsafe.Pointer(&inBuf.Data[0]))
inLen = C.size_t(len(inBuf.Data))
}
C.recv(C.int32_t(ref.Num), C.int(code), in, inLen, &out, &outLen)
if outLen > 0 {
outBuf := &seq.Buffer{
Data: make([]byte, outLen),
}
copy(outBuf.Data, (*[maxSliceLen]byte)(unsafe.Pointer(out))[:outLen])
return outBuf
}
return nil
}