jsonrpc-server: Disconnect connections that queue too much data.

[sliver-openvswitch.git] / lib / dpif-provider.h

diff --git a/lib/dpif-provider.h b/lib/dpif-provider.h
index c51b1df..bea822f 100644 (file)
--- a/lib/dpif-provider.h
+++ b/lib/dpif-provider.h
@@ -22,7 +22,6 @@
  * exposed over OpenFlow as a single switch.  Datapaths and the collections of
  * ports that they contain may be fixed or dynamic. */
 
-#include <assert.h>
 #include "openflow/openflow.h"
 #include "dpif.h"
 #include "util.h"
@@ -49,7 +48,7 @@ void dpif_uninit(struct dpif *dpif, bool close);
 static inline void dpif_assert_class(const struct dpif *dpif,
                                      const struct dpif_class *dpif_class)
 {
-    assert(dpif->dpif_class == dpif_class);
+    ovs_assert(dpif->dpif_class == dpif_class);
 }
 
 /* Datapath interface class structure, to be defined by each implementation of
@@ -80,6 +79,17 @@ struct dpif_class {
      * case this function may be a null pointer. */
     int (*enumerate)(struct sset *all_dps);
 
+    /* Returns the type to pass to netdev_open() when a dpif of class
+     * 'dpif_class' has a port of type 'type', for a few special cases
+     * when a netdev type differs from a port type.  For example, when
+     * using the userspace datapath, a port of type "internal" needs to
+     * be opened as "tap".
+     *
+     * Returns either 'type' itself or a string literal, which must not
+     * be freed. */
+    const char *(*port_open_type)(const struct dpif_class *dpif_class,
+                                  const char *type);
+
     /* Attempts to open an existing dpif called 'name', if 'create' is false,
      * or to open an existing dpif or create a new one, if 'create' is true.
      *
@@ -122,11 +132,13 @@ struct dpif_class {
     /* Removes port numbered 'port_no' from 'dpif'. */
     int (*port_del)(struct dpif *dpif, uint32_t port_no);
 
-    /* Queries 'dpif' for a port with the given 'port_no' or 'devname'.  Stores
-     * information about the port into '*port' if successful.
+    /* Queries 'dpif' for a port with the given 'port_no' or 'devname'.
+     * If 'port' is not null, stores information about the port into
+     * '*port' if successful.
      *
-     * The caller takes ownership of data in 'port' and must free it with
-     * dpif_port_destroy() when it is no longer needed. */
+     * If 'port' is not null, the caller takes ownership of data in
+     * 'port' and must free it with dpif_port_destroy() when it is no
+     * longer needed. */
     int (*port_query_by_number)(const struct dpif *dpif, uint32_t port_no,
                                 struct dpif_port *port);
     int (*port_query_by_name)(const struct dpif *dpif, const char *devname,