Add circuitmux.c, circuitmux.h

1 files changed, 50 insertions, 0 deletions

diff --git a/src/or/circuitmux.h b/src/or/circuitmux.h
new file mode 100644
index 000000000..c5f95268e
--- /dev/null
+++ b/src/or/circuitmux.h
@@ -0,0 +1,50 @@
+/* * Copyright (c) 2012, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file circuitmux.h
+ * \brief Header file for circuitmux.c
+ **/
+
+#ifndef _TOR_CIRCUITMUX_H
+#define _TOR_CIRCUITMUX_H
+
+#include "or.h"
+
+/* Consistency check */
+void circuitmux_assert_okay(circuitmux_t *cmux);
+
+/* Create/destroy */
+circuitmux_t * circuitmux_alloc(void);
+void circuitmux_detach_all_circuits(circuitmux_t *cmux);
+void circuitmux_free(circuitmux_t *cmux);
+
+/* Status inquiries */
+cell_direction_t circuitmux_attached_circuit_direction(
+    circuitmux_t *cmux,
+    circuit_t *circ);
+int circuitmux_is_circuit_attached(circuitmux_t *cmux, circuit_t *circ);
+int circuitmux_is_circuit_active(circuitmux_t *cmux, circuit_t *circ);
+unsigned int circuitmux_num_cells_for_circuit(circuitmux_t *cmux,
+                                              circuit_t *circ);
+unsigned int circuitmux_num_cells(circuitmux_t *cmux);
+unsigned int circuitmux_num_circuits(circuitmux_t *cmux);
+unsigned int circuitmux_num_active_circuits(circuitmux_t *cmux);
+
+/* Channel interface */
+circuit_t * circuitmux_get_first_active_circuit(circuitmux_t *cmux);
+void circuitmux_notify_xmit_cells(circuitmux_t *cmux, circuit_t *circ,
+                                  unsigned int n_cells);
+
+/* Circuit interface */
+void circuitmux_attach_circuit(circuitmux_t *cmux, circuit_t *circ,
+                               cell_direction_t direction);
+void circuitmux_detach_circuit(circuitmux_t *cmux, circuit_t *circ);
+void circuitmux_clear_num_cells(circuitmux_t *cmux, circuit_t *circ);
+void circuitmux_add_to_num_cells(circuitmux_t *cmux, circuit_t *circ,
+                                 unsigned int n_cells);
+void circuitmux_set_num_cells(circuitmux_t *cmux, circuit_t *circ,
+                              unsigned int n_cells);
+
+#endif /* _TOR_CIRCUITMUX_H */
+