[libvirt] [ocaml PATCH 2/4] Add binding for virConnectSetKeepAlive

[David Scott]

This one is a 'one-off' but it ought to be possible to use the generator
to create the function (it has signature 'conn, int, int : int')

This function first appeared in libvirt version 0.9.8.

Signed-off-by: David Scott <dave.scott at eu.citrix.com>
---
 libvirt/libvirt.ml          |  2 ++
 libvirt/libvirt.mli         |  8 ++++++++
 libvirt/libvirt_c_oneoffs.c | 17 +++++++++++++++++
 3 files changed, 27 insertions(+)

diff --git a/libvirt/libvirt.ml b/libvirt/libvirt.ml
index 1fbb8ca..784a2b5 100644
--- a/libvirt/libvirt.ml
+++ b/libvirt/libvirt.ml
@@ -100,6 +100,8 @@ struct
   let cpu_usable cpumaps maplen vcpu cpu =
     Char.code cpumaps.[vcpu*maplen + cpu/8] land (1 lsl (cpu mod 8)) <> 0
 
+  external set_keep_alive : [>`R] t -> int -> int -> unit = "ocaml_libvirt_connect_set_keep_alive"
+
   external const : [>`R] t -> ro t = "%identity"
 end
 
diff --git a/libvirt/libvirt.mli b/libvirt/libvirt.mli
index 0185402..fa5a0fe 100644
--- a/libvirt/libvirt.mli
+++ b/libvirt/libvirt.mli
@@ -384,6 +384,14 @@ sig
     (** [cpu_usable cpumaps maplen vcpu cpu] checks returns true iff the
 	[cpu] is usable by [vcpu]. *)
 
+  val set_keep_alive : [>`R] t -> int -> int -> unit
+    (** [set_keep_alive conn interval count] starts sending keepalive
+        messages after [interval] seconds of inactivity and consider the
+        connection to be broken when no response is received after [count]
+        keepalive messages.
+        Note: the client has to implement and run an event loop to
+        be able to use keep-alive messages. *)
+
   external const : [>`R] t -> ro t = "%identity"
     (** [const conn] turns a read/write connection into a read-only
 	connection.  Note that the opposite operation is impossible.
diff --git a/libvirt/libvirt_c_oneoffs.c b/libvirt/libvirt_c_oneoffs.c
index 42301b7..c51aad7 100644
--- a/libvirt/libvirt_c_oneoffs.c
+++ b/libvirt/libvirt_c_oneoffs.c
@@ -169,6 +169,23 @@ ocaml_libvirt_connect_node_get_cells_free_memory (value connv,
 }
 
 CAMLprim value
+ocaml_libvirt_connect_set_keep_alive(value connv,
+				     value intervalv, value countv)
+{
+  CAMLparam3 (connv, intervalv, countv);
+  virConnectPtr conn = Connect_val(connv);
+  int interval = Int_val(intervalv);
+  unsigned int count = Int_val(countv);
+  int r;
+
+  NONBLOCKING(r = virConnectSetKeepAlive(conn, interval, count));
+  CHECK_ERROR (r == -1, conn, "virConnectSetKeepAlive");
+
+  CAMLreturn(Val_unit);
+}
+
+
+CAMLprim value
 ocaml_libvirt_domain_get_id (value domv)
 {
   CAMLparam1 (domv);
-- 
1.8.1.2