From: Jo-Philipp Wich <jow@openwrt.org>
Date: Tue, 3 Sep 2013 10:21:09 +0000 (+0200)
Subject: session: introduce api to register session create and destroy callbacks
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Frpcd.git;a=commitdiff_plain;h=60b9c9d919fd22339105f8e1835cb5cd7ff16d9c

session: introduce api to register session create and destroy callbacks
---

diff --git a/session.c b/session.c
index d970d45..6cc4ffe 100644
--- a/session.c
+++ b/session.c
@@ -27,6 +27,9 @@
 static struct avl_tree sessions;
 static struct blob_buf buf;
 
+static LIST_HEAD(create_callbacks);
+static LIST_HEAD(destroy_callbacks);
+
 static const struct blobmsg_policy new_policy = {
 	.name = "timeout", .type = BLOBMSG_TYPE_INT32
 };
@@ -200,6 +203,10 @@ rpc_session_destroy(struct rpc_session *ses)
 	struct rpc_session_acl *acl, *nacl;
 	struct rpc_session_acl_scope *acl_scope, *nacl_scope;
 	struct rpc_session_data *data, *ndata;
+	struct rpc_session_cb *cb;
+
+	list_for_each_entry(cb, &destroy_callbacks, list)
+		cb->cb(ses, cb->priv);
 
 	uloop_timeout_cancel(&ses->t);
 
@@ -230,6 +237,7 @@ static struct rpc_session *
 rpc_session_create(int timeout)
 {
 	struct rpc_session *ses;
+	struct rpc_session_cb *cb;
 
 	ses = calloc(1, sizeof(*ses));
 	if (!ses)
@@ -246,6 +254,9 @@ rpc_session_create(int timeout)
 	ses->t.cb = rpc_session_timeout;
 	rpc_touch_session(ses);
 
+	list_for_each_entry(cb, &create_callbacks, list)
+		cb->cb(ses, cb->priv);
+
 	return ses;
 }
 
@@ -720,3 +731,15 @@ bool rpc_session_access(const char *sid, const char *scope,
 
 	return rpc_session_acl_allowed(ses, scope, object, function);
 }
+
+void rpc_session_create_cb(struct rpc_session_cb *cb)
+{
+	if (cb && cb->cb)
+		list_add(&cb->list, &create_callbacks);
+}
+
+void rpc_session_destroy_cb(struct rpc_session_cb *cb)
+{
+	if (cb && cb->cb)
+		list_add(&cb->list, &destroy_callbacks);
+}
diff --git a/session.h b/session.h
index bcdcb96..59b2864 100644
--- a/session.h
+++ b/session.h
@@ -59,4 +59,13 @@ int rpc_session_api_init(struct ubus_context *ctx);
 bool rpc_session_access(const char *sid, const char *scope,
                         const char *object, const char *function);
 
+struct rpc_session_cb {
+	struct list_head list;
+	void (*cb)(struct rpc_session *, void *);
+	void *priv;
+};
+
+void rpc_session_create_cb(struct rpc_session_cb *cb);
+void rpc_session_destroy_cb(struct rpc_session_cb *cb);
+
 #endif