Handle channel closure during a receive callback when the ringbuffer wraps.

[utcp] / utcp.h

diff --git a/utcp.h b/utcp.h
index a29ef96b9293975db7482c92d4508e4e0a3df63e..ff509ac936e1d440fa151d32eb0a576e32d06f09 100644 (file)
--- a/utcp.h
+++ b/utcp.h
@@ -33,7 +33,8 @@ struct utcp {
 
 struct utcp_connection {
        void *priv;
-       struct utcp *utcp;
+       struct utcp *const utcp;
+       const uint32_t flags;
 };
 #else
 struct utcp;
@@ -44,8 +45,18 @@ struct utcp_connection;
 #define UTCP_SHUT_WR 1
 #define UTCP_SHUT_RDWR 2
 
+#define UTCP_ORDERED 1
+#define UTCP_RELIABLE 2
+#define UTCP_FRAMED 4
+#define UTCP_DROP_LATE 8
+#define UTCP_NO_PARTIAL 16
+
+#define UTCP_TCP 3
+#define UTCP_UDP 0
+
 typedef bool (*utcp_pre_accept_t)(struct utcp *utcp, uint16_t port);
 typedef void (*utcp_accept_t)(struct utcp_connection *utcp_connection, uint16_t port);
+typedef void (*utcp_retransmit_t)(struct utcp_connection *connection);
 
 typedef ssize_t (*utcp_send_t)(struct utcp *utcp, const void *data, size_t len);
 typedef ssize_t (*utcp_recv_t)(struct utcp_connection *connection, const void *data, size_t len);
@@ -55,6 +66,7 @@ typedef void (*utcp_poll_t)(struct utcp_connection *connection, size_t len);
 extern struct utcp *utcp_init(utcp_accept_t accept, utcp_pre_accept_t pre_accept, utcp_send_t send, void *priv);
 extern void utcp_exit(struct utcp *utcp);
 
+extern struct utcp_connection *utcp_connect_ex(struct utcp *utcp, uint16_t port, utcp_recv_t recv, void *priv, uint32_t flags);
 extern struct utcp_connection *utcp_connect(struct utcp *utcp, uint16_t port, utcp_recv_t recv, void *priv);
 extern void utcp_accept(struct utcp_connection *utcp, utcp_recv_t recv, void *priv);
 extern ssize_t utcp_send(struct utcp_connection *connection, const void *data, size_t len);
@@ -62,11 +74,12 @@ extern ssize_t utcp_recv(struct utcp *utcp, const void *data, size_t len);
 extern int utcp_close(struct utcp_connection *connection);
 extern int utcp_abort(struct utcp_connection *connection);
 extern int utcp_shutdown(struct utcp_connection *connection, int how);
-extern struct timeval utcp_timeout(struct utcp *utcp);
+extern struct timespec utcp_timeout(struct utcp *utcp);
 extern void utcp_set_recv_cb(struct utcp_connection *connection, utcp_recv_t recv);
 extern void utcp_set_poll_cb(struct utcp_connection *connection, utcp_poll_t poll);
 extern void utcp_set_accept_cb(struct utcp *utcp, utcp_accept_t accept, utcp_pre_accept_t pre_accept);
 extern bool utcp_is_active(struct utcp *utcp);
+extern void utcp_abort_all_connections(struct utcp *utcp);
 
 // Global socket options
 
@@ -74,15 +87,27 @@ extern int utcp_get_user_timeout(struct utcp *utcp);
 extern void utcp_set_user_timeout(struct utcp *utcp, int seconds);
 
 extern uint16_t utcp_get_mtu(struct utcp *utcp);
+extern uint16_t utcp_get_mss(struct utcp *utcp);
 extern void utcp_set_mtu(struct utcp *utcp, uint16_t mtu);
 
+extern void utcp_reset_timers(struct utcp *utcp);
+
+extern void utcp_offline(struct utcp *utcp, bool offline);
+extern void utcp_set_retransmit_cb(struct utcp *utcp, utcp_retransmit_t retransmit);
+
 // Per-socket options
 
 extern size_t utcp_get_sndbuf(struct utcp_connection *connection);
 extern void utcp_set_sndbuf(struct utcp_connection *connection, size_t size);
-
 extern size_t utcp_get_sndbuf_free(struct utcp_connection *connection);
 
+extern size_t utcp_get_rcvbuf(struct utcp_connection *connection);
+extern void utcp_set_rcvbuf(struct utcp_connection *connection, size_t size);
+extern size_t utcp_get_rcvbuf_free(struct utcp_connection *connection);
+
+extern size_t utcp_get_sendq(struct utcp_connection *connection);
+extern size_t utcp_get_recvq(struct utcp_connection *connection);
+
 extern bool utcp_get_nodelay(struct utcp_connection *connection);
 extern void utcp_set_nodelay(struct utcp_connection *connection, bool nodelay);
 
@@ -91,4 +116,10 @@ extern void utcp_set_keepalive(struct utcp_connection *connection, bool keepaliv
 
 extern size_t utcp_get_outq(struct utcp_connection *connection);
 
+extern void utcp_expect_data(struct utcp_connection *connection, bool expect);
+
+// Completely global options
+
+extern void utcp_set_clock_granularity(long granularity);
+
 #endif