Changeset ee603c4 in mainline for uspace/srv/udp/udp_type.h

Timestamp:

2012-04-04T21:10:22Z (12 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

92b42442

Parents:

4794417

Message:

UDP associations, sending datagrams.

File:

• uspace/srv/udp/udp_type.h (modified) (2 diffs)

uspace/srv/udp/udp_type.h

@@ -41 +41 @@
 
 typedef enum {
-        UDP_EOK
+        UDP_EOK,
+        /* Insufficient resources */
+        UDP_ENORES,
+        /* Foreign socket unspecified */
+        UDP_EUNSPEC,
+        /* No route to destination */
+        UDP_ENOROUTE
 } udp_error_t;
 
@@ -92 +98 @@
 } udp_client_t;
 
+/** UDP association
+ *
+ * This is a rough equivalent of a TCP connection endpoint. It allows
+ * sending and receiving UDP datagrams and it is uniquely identified
+ * by a socket pair.
+ */
 typedef struct {
         char *name;
+        link_t link;
+
+        /** Association identification (local and foreign socket) */
         udp_sockpair_t ident;
+
+        /** True if association was deleted by user */
+        bool deleted;
+
+        /** Protects access to association structure */
+        fibril_mutex_t lock;
+        /** Reference count */
+        atomic_t refcnt;
+
+        /** Receive queue */
+        list_t rcv_queue;
+        /** Receive queue CV. Broadcast when new datagram is inserted */
+        fibril_condvar_t rcv_queue_cv;
 } udp_assoc_t;