1 files changed, 113 insertions, 0 deletions
diff --git a/ecp/src/ecp/ext/rbuf.c b/ecp/src/ecp/ext/rbuf.c
new file mode 100644
index 0000000..70ee0d2
--- /dev/null
+++ b/ecp/src/ecp/ext/rbuf.c
@@ -0,0 +1,113 @@
+#include <stdlib.h>
+
+#include <core.h>
+
+#include "rbuf.h"
+
+ECPRBConn *ecp_rbuf_get_rbconn(ECPConnection *conn) {
+    if (ecp_conn_has_rbuf(conn)) return (ECPRBConn *)conn;
+    return NULL;
+}
+
+ECPConnection *ecp_rbuf_get_conn(ECPRBConn *conn) {
+    return &conn->b;
+}
+
+void _ecp_rbuf_start(ECPRBuffer *rbuf, ecp_seq_t seq) {
+    rbuf->seq_max = seq;
+    rbuf->seq_start = seq + 1;
+}
+
+int _ecp_rbuf_msg_idx(ECPRBuffer *rbuf, ecp_seq_t seq, unsigned short *idx) {
+    ecp_seq_t seq_offset = seq - rbuf->seq_start;
+
+    /* This also checks for seq_start <= seq if seq type range >> rbuf->arr_size */
+    if (seq_offset >= rbuf->arr_size) return ECP_ERR_FULL;
+
+    if (idx) *idx = ECP_RBUF_IDX_MASK(rbuf->idx_start + seq_offset, rbuf->arr_size);
+    return ECP_OK;
+}
+
+void ecp_rbuf_conn_init(ECPRBConn *conn) {
+    ECPConnection *_conn = ecp_rbuf_get_conn(conn);
+
+    ecp_conn_set_flags(_conn, ECP_CONN_FLAG_RBUF);
+    conn->send = NULL;
+    conn->recv = NULL;
+    conn->iter = NULL;
+}
+
+int ecp_rbuf_conn_create(ECPRBConn *conn, ECPSocket *sock, unsigned char type) {
+    ECPConnection *_conn = ecp_rbuf_get_conn(conn);
+    int rv;
+
+    rv = ecp_conn_create(_conn, sock, type);
+    if (rv) return rv;
+
+    ecp_rbuf_conn_init(conn);
+    return ECP_OK;
+}
+
+int ecp_rbuf_conn_create_inb(ECPRBConn *conn, ECPSocket *sock, unsigned char type) {
+    ECPConnection *_conn = ecp_rbuf_get_conn(conn);
+    int rv;
+
+    rv = ecp_conn_create_inb(_conn, sock, type);
+    if (rv) return rv;
+
+    ecp_rbuf_conn_init(conn);
+    return ECP_OK;
+}
+
+void ecp_rbuf_destroy(ECPRBConn *conn) {
+    if (conn->send) ecp_rbsend_destroy(conn);
+    if (conn->recv) ecp_rbrecv_destroy(conn);
+    conn->iter = NULL;
+}
+
+void ecp_rbuf_start(ECPRBConn *conn) {
+    ECPConnection *_conn = ecp_rbuf_get_conn(conn);
+
+    if (conn->send) {
+        ecp_seq_t seq_out;
+
+        seq_out = (ecp_seq_t)(_conn->nonce_out);
+        ecp_rbsend_start(conn, seq_out);
+    }
+
+    if (conn->recv) {
+        ecp_seq_t seq_in;
+
+        seq_in = (ecp_seq_t)(_conn->nonce_in);
+        ecp_rbrecv_start(conn, seq_in);
+    }
+}
+
+ssize_t ecp_rbuf_msg_handle(ECPRBConn *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, size_t msg_size, ECP2Buffer *bufs) {
+    switch (mtype) {
+        case ECP_MTYPE_RBACK:
+            if (conn->send) return ecp_rbuf_handle_ack(conn, msg, msg_size);
+            break;
+
+        case ECP_MTYPE_RBNOP:
+            if (conn->recv) return ecp_rbuf_handle_nop(conn, msg, msg_size);
+            break;
+
+        case ECP_MTYPE_RBFLUSH:
+            if (conn->recv) return ecp_rbuf_handle_flush(conn);
+            break;
+
+        default:
+            break;
+    }
+
+    return ECP_ERR_MTYPE;
+}
+
+int ecp_rbuf_err_handle(ECPRBConn *conn, unsigned char mtype, int err) {
+    if (conn->recv && (mtype == ECP_MTYPE_RBTIMER)) {
+        ecp_rbuf_handle_timer(conn);
+        return ECP_OK;
+    }
+    return ECP_PASS;
+}