From 818fe1306d5a8a52ba3661a6e711e1be21213666 Mon Sep 17 00:00:00 2001
From: Simon Morlat <simon.morlat@linphone.org>
Date: Tue, 12 Apr 2011 16:39:33 +0200
Subject: [PATCH] add iterate hook

---
 coreapi/linphonecore.c       | 51 ++++++++++++++++++++++++++++++++++--
 coreapi/linphonecore_utils.h |  9 ++++++-
 coreapi/private.h            |  1 +
 3 files changed, 58 insertions(+), 3 deletions(-)

diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index b3eabe12..b36245b9 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -39,6 +39,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 static const char *liblinphone_version=LIBLINPHONE_VERSION;
 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
+static void linphone_core_run_hooks(LinphoneCore *lc);
+static void linphone_core_free_hooks(LinphoneCore *lc);
 
 #include "enum.h"
 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
@@ -1734,6 +1736,7 @@ void linphone_core_iterate(LinphoneCore *lc){
 	if (disconnected)
 		linphone_core_disconnected(lc,call);
 
+	linphone_core_run_hooks(lc);
 	linphone_core_do_plugin_tasks(lc);
 
 	if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
@@ -3901,6 +3904,7 @@ LpConfig *linphone_core_get_config(LinphoneCore *lc){
 
 static void linphone_core_uninit(LinphoneCore *lc)
 {
+	linphone_core_free_hooks(lc);
 	while(lc->calls)
 	{
 		LinphoneCall *the_call = lc->calls->data;
@@ -4147,7 +4151,7 @@ const char *linphone_error_to_string(LinphoneReason err){
 	return "unknown error";
 }
 /**
- * enable signaling keep alive
+ * Enables signaling keep alive
  */
 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
 	if (enable > 0) {
@@ -4157,7 +4161,7 @@ void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
 	}
 }
 /**
- * Is signaling keep alive
+ * Is signaling keep alive enabled
  */
 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
 	return sal_get_keepalive_period(lc->sal) > 0;
@@ -4173,4 +4177,47 @@ void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
 	lc->ringstream=NULL;
 }
 
+typedef struct Hook{
+	LinphoneCoreIterateHook fun;
+	void *data;
+}Hook;
+
+static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
+	Hook *h=ms_new(Hook,1);
+	h->fun=hook;
+	h->data=hook_data;
+	return h;
+}
+
+static void hook_invoke(Hook *h){
+	h->fun(h->data);
+}
+
+void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
+	lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
+}
+
+static void linphone_core_run_hooks(LinphoneCore *lc){
+	ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
+}
+
+static void linphone_core_free_hooks(LinphoneCore *lc){
+	ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
+	ms_list_free(lc->hooks);
+	lc->hooks=NULL;
+}
+
+void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
+	MSList *elem;
+	for(elem=lc->hooks;elem!=NULL;elem=elem->next){
+		Hook *h=(Hook*)elem->data;
+		if (h->fun==hook && h->data==hook_data){
+			ms_list_remove_link(lc->hooks,elem);
+			ms_free(h);
+			return;
+		}
+	}
+	ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
+}
+
 
diff --git a/coreapi/linphonecore_utils.h b/coreapi/linphonecore_utils.h
index 0c7e3233..bd41ec2b 100644
--- a/coreapi/linphonecore_utils.h
+++ b/coreapi/linphonecore_utils.h
@@ -80,8 +80,15 @@ void linphone_core_start_dtmf_stream(LinphoneCore* lc);
  */
 void linphone_core_stop_dtmf_stream(LinphoneCore* lc);
 
-	
+
+typedef bool_t (*LinphoneCoreIterateHook)(void *data);
+
+void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data);
+
+void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data);
+
 #ifdef __cplusplus
 }
 #endif
 #endif
+
diff --git a/coreapi/private.h b/coreapi/private.h
index 305e5a05..4fc4db22 100644
--- a/coreapi/private.h
+++ b/coreapi/private.h
@@ -429,6 +429,7 @@ struct _LinphoneCore
 	unsigned long preview_window_id;
 	time_t netup_time; /*time when network went reachable */
 	struct _EcCalibrator *ecc;
+	MSList *hooks;
 	bool_t use_files;
 	bool_t apply_nat_settings;
 	bool_t initial_subscribes_sent;
-- 
2.39.2