From 03261a97b161cb736d8ce2609c7cf8c8d98a948e Mon Sep 17 00:00:00 2001
From: Ghislain MARY <ghislain.mary@belledonne-communications.com>
Date: Fri, 18 Dec 2015 14:56:20 +0100
Subject: [PATCH] Add API to refresh a subscription.

---
 coreapi/bellesip_sal/sal_op_events.c | 9 +++++++++
 coreapi/event.c                      | 4 ++++
 coreapi/event.h                      | 9 ++++++++-
 include/sal/sal.h                    | 1 +
 4 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/coreapi/bellesip_sal/sal_op_events.c b/coreapi/bellesip_sal/sal_op_events.c
index d41440d96..631e23b36 100644
--- a/coreapi/bellesip_sal/sal_op_events.c
+++ b/coreapi/bellesip_sal/sal_op_events.c
@@ -223,6 +223,15 @@ int sal_subscribe(SalOp *op, const char *from, const char *to, const char *event
 	return -1;
 }
 
+int sal_subscribe_refresh(SalOp *op) {
+	if (op->refresher) {
+		belle_sip_refresher_refresh(op->refresher,belle_sip_refresher_get_expires(op->refresher));
+		return 0;
+	}
+	ms_warning("sal_refresh_subscribe(): no refresher");
+	return -1;
+}
+
 int sal_unsubscribe(SalOp *op){
 	if (op->refresher){
 		const belle_sip_transaction_t *tr=(const belle_sip_transaction_t*) belle_sip_refresher_get_transaction(op->refresher);
diff --git a/coreapi/event.c b/coreapi/event.c
index 9320047ae..8fd95ede6 100644
--- a/coreapi/event.c
+++ b/coreapi/event.c
@@ -192,6 +192,10 @@ int linphone_event_update_subscribe(LinphoneEvent *lev, const LinphoneContent *b
 	return linphone_event_send_subscribe(lev,body);
 }
 
+int linphone_event_refresh_subscribe(LinphoneEvent *lev) {
+	return sal_subscribe_refresh(lev->op);
+}
+
 int linphone_event_accept_subscription(LinphoneEvent *lev){
 	int err;
 	if (lev->subscription_state!=LinphoneSubscriptionIncomingReceived){
diff --git a/coreapi/event.h b/coreapi/event.h
index fe3f984de..5200beb66 100644
--- a/coreapi/event.h
+++ b/coreapi/event.h
@@ -138,12 +138,19 @@ LINPHONE_PUBLIC LinphoneEvent *linphone_core_create_subscribe(LinphoneCore *lc,
 LINPHONE_PUBLIC int linphone_event_send_subscribe(LinphoneEvent *ev, const LinphoneContent *body);
 
 /**
- * Update (refresh) an outgoing subscription.
+ * Update (refresh) an outgoing subscription, changing the body.
  * @param lev a LinphoneEvent
  * @param body an optional body to include in the subscription update, may be NULL.
 **/
 LINPHONE_PUBLIC int linphone_event_update_subscribe(LinphoneEvent *lev, const LinphoneContent *body);
 
+/**
+ * Refresh an outgoing subscription keeping the same body.
+ * @param lev LinphoneEvent object.
+ * @return 0 if successful, -1 otherwise.
+ */
+LINPHONE_PUBLIC int linphone_event_refresh_subscribe(LinphoneEvent *lev);
+
 
 /**
  * Accept an incoming subcription.
diff --git a/include/sal/sal.h b/include/sal/sal.h
index 6031278bf..dccc2d08e 100644
--- a/include/sal/sal.h
+++ b/include/sal/sal.h
@@ -742,6 +742,7 @@ int sal_subscribe(SalOp *op, const char *from, const char *to, const char *event
 int sal_unsubscribe(SalOp *op);
 int sal_subscribe_accept(SalOp *op);
 int sal_subscribe_decline(SalOp *op, SalReason reason);
+int sal_subscribe_refresh(SalOp *op);
 int sal_notify(SalOp *op, const SalBodyHandler *body);
 int sal_notify_close(SalOp *op);
 int sal_publish(SalOp *op, const char *from, const char *to, const char*event_name, int expires, const SalBodyHandler *body);