make kill packet sending part of del_groupchat

Author: zugz

toxcore/group.c

@@ -1034,19 +1034,24 @@ int add_groupchat(Group_Chats *g_c, uint8_t type)
     return groupnumber;
 }
 
-/* Delete a groupchat from the chats array.
+/* Delete a groupchat from the chats array, informing the group first as
+ * appropriate.
  *
  * return 0 on success.
  * return -1 if groupnumber is invalid.
  */
-int del_groupchat(Group_Chats *g_c, uint32_t groupnumber)
+int del_groupchat(Group_Chats *g_c, uint32_t groupnumber, bool leave_permanently)
 {
     Group_c *g = get_group_c(g_c, groupnumber);
 
     if (!g) {
         return -1;
     }
 
+    if (leave_permanently) {
+        group_leave(g_c, groupnumber);
+    }
+
     for (uint32_t i = 0; i < MAX_GROUP_CONNECTIONS; ++i) {
         if (g->close[i].type == GROUPCHAT_CLOSE_NONE) {
             continue;
@@ -3231,7 +3236,7 @@ void do_groupchats(Group_Chats *g_c, void *userdata)
 void kill_groupchats(Group_Chats *g_c)
 {
     for (uint16_t i = 0; i < g_c->num_chats; ++i) {
-        del_groupchat(g_c, i);
+        leave_groupchat(g_c, i, false);
     }
 
     m_callback_conference_invite(g_c->m, nullptr);

toxcore/group.h

@@ -238,12 +238,13 @@ void g_callback_peer_list_changed(Group_Chats *g_c, peer_list_changed_cb *functi
  */
 int add_groupchat(Group_Chats *g_c, uint8_t type);
 
-/* Delete a groupchat from the chats array.
+/* Delete a groupchat from the chats array, informing the group first as 
+ * appropriate.
  *
  * return 0 on success.
  * return -1 if groupnumber is invalid.
  */
-int del_groupchat(Group_Chats *g_c, uint32_t groupnumber);
+int del_groupchat(Group_Chats *g_c, uint32_t groupnumber, bool leave_permanently);
 
 /* Copy the public key of (frozen) peernumber who is in groupnumber to pk.
  * pk must be CRYPTO_PUBLIC_KEY_SIZE long.
@@ -316,12 +317,6 @@ int group_message_send(const Group_Chats *g_c, uint32_t groupnumber, const uint8
  */
 int group_action_send(const Group_Chats *g_c, uint32_t groupnumber, const uint8_t *action, uint16_t length);
 
-/* send message to announce leaving group
- * return true on success
- * return false on failure
- */
-bool group_leave(const Group_Chats *g_c, uint32_t groupnumber);
-
 /* set the group's title, limited to MAX_NAME_LENGTH
  * return 0 on success
  * return -1 if groupnumber is invalid.

toxcore/tox.c

@@ -1534,8 +1534,7 @@ uint32_t tox_conference_new(Tox *tox, Tox_Err_Conference_New *error)
 bool tox_conference_delete(Tox *tox, uint32_t conference_number, Tox_Err_Conference_Delete *error)
 {
     Messenger *m = tox->m;
-    group_leave(m->conferences_object, conference_number);
-    int ret = del_groupchat(m->conferences_object, conference_number);
+    int ret = del_groupchat(m->conferences_object, conference_number, true);
 
     if (ret == -1) {
         SET_ERROR_PARAMETER(error, TOX_ERR_CONFERENCE_DELETE_CONFERENCE_NOT_FOUND);