Example #1
0
// 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])
		}
	}

}
Example #2
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
		}
	}

}