aliveudp-1

1 files changed, 93 insertions, 0 deletions

diff --git a/src/trans.c b/src/trans.c
new file mode 100644
index 0000000..58e96e3
--- /dev/null
+++ b/src/trans.c
@@ -0,0 +1,93 @@
+
+#include <string.h>
+#include <errno.h>
+
+#include "trans.h"
+
+extern struct trans_layer trans_nl;
+extern struct trans_layer trans_udp;
+extern struct trans_layer trans_tcp;
+
+enum {
+	TRANS_NL   = 0,
+	TRANS_UDP  = 1,
+	TRANS_TCP  = 2,
+	TRANS_MAX,
+};
+
+static struct trans_layer *layers[TRANS_MAX];
+
+static void layers_init(void)
+{
+	layers[TRANS_NL]  = &trans_nl;
+	layers[TRANS_UDP] = &trans_udp;
+	layers[TRANS_TCP] = &trans_tcp;
+}
+
+#define NL  (layers[TRANS_NL])
+#define UDP (layers[TRANS_NL])
+#define TCP (layers[TRANS_NL])
+
+#define TSNIF_TRANS_UDP (TSNIF_TRANS_UDP_CLIENT | TSNIF_TRANS_UDP_SERVER)
+#define TSNIF_TRANS_TCP (TSNIF_TRANS_TCP_CLIENT | TSNIF_TRANS_TCP_SERVER)
+
+static int cb_local(struct trans_handle *h, struct trans_msg *msg)
+{
+	return h->cb ? h->cb(h, msg) : -1;
+}
+
+int trans_init(struct trans_handle *h, trans_cb_t cb, int flags)
+{
+	int ret = -1;
+
+	layers_init();
+
+	memset(h, 0x0, sizeof(*h));
+	h->flags    = flags;
+	h->cb       = cb;
+	h->cb_local = cb_local;
+
+	if ((flags & TSNIF_TRANS_UDP_CLIENT) &&
+	    (flags & TSNIF_TRANS_NL))
+		return -EINVAL;
+
+	if ((flags & TSNIF_TRANS_TCP_CLIENT) &&
+	    (flags & TSNIF_TRANS_NL))
+		return -EINVAL;
+
+	if (flags & TSNIF_TRANS_NL)
+		ret = NL->init(h, cb);
+
+	if (!ret && (flags & TSNIF_TRANS_UDP))
+		ret = UDP->init(h, cb);
+
+	if (!ret && (flags & TSNIF_TRANS_UDP))
+		ret = TCP->init(h, cb);
+
+	return 0;
+}
+
+int trans_close(struct trans_handle *h)
+{
+	return 0;
+}
+
+int trans_process(struct trans_handle *h)
+{
+	return 0;
+}
+
+int trans_send(struct trans_handle *h, struct trans_msg *msg)
+{
+	return 0;
+}
+
+int trans_group(struct trans_handle *h, int group)
+{
+	return 0;
+}
+
+int trans_fd(struct trans_handle *h)
+{
+	return 0;
+}