libvlc_log: remove dummy exceptions

src/control/log.c

@@ -112,23 +112,22 @@ libvlc_log_t *libvlc_log_open( libvlc_instance_t *p_instance, libvlc_exception_t
 
 void libvlc_log_close( libvlc_log_t *p_log, libvlc_exception_t *p_e )
 {
-    if( p_log )
-    {
+    if( !p_log )
+        return;
+
     assert( p_log->p_messages );
     msg_Unsubscribe(p_log->p_messages);
     libvlc_release( p_log->p_instance );
     libvlc_log_clear( p_log, p_e );
     vlc_spin_destroy( &p_log->data.lock );
     free(p_log);
-    }
-    else
-        RAISEVOID("Invalid log object!");
 }
 
 unsigned libvlc_log_count( const libvlc_log_t *p_log, libvlc_exception_t *p_e )
 {
-    if( p_log )
-    {
+    if( !p_log )
+        return 0;
+
     msg_cb_data_t *data = &((libvlc_log_t *)p_log)->data;
     unsigned ret;
 
@@ -138,14 +137,13 @@ unsigned libvlc_log_count( const libvlc_log_t *p_log, libvlc_exception_t *p_e )
     ret = data->count;
     vlc_spin_unlock (&data->lock);
     return ret;
-    }
-    RAISEZERO("Invalid log object!");
 }
 
 void libvlc_log_clear( libvlc_log_t *p_log, libvlc_exception_t *p_e )
 {
-    if( p_log )
-    {
+    if( !p_log )
+        return;
+
     vlc_spin_lock (&p_log->data.lock);
     msg_item_t *tab[p_log->data.count];
     memcpy (tab, p_log->data.items, sizeof (tab));
@@ -154,9 +152,6 @@ void libvlc_log_clear( libvlc_log_t *p_log, libvlc_exception_t *p_e )
 
     for (unsigned i = 0; i < sizeof (tab) / sizeof (tab[0]); i++)
          msg_Release (tab[i]);
-    }
-    else
-        RAISEVOID("Invalid log object!");
 }
 
 libvlc_log_iterator_t *libvlc_log_get_iterator( const libvlc_log_t *p_log, libvlc_exception_t *p_e )
@@ -183,21 +178,14 @@ libvlc_log_iterator_t *libvlc_log_get_iterator( const libvlc_log_t *p_log, libvl
 
 void libvlc_log_iterator_free( libvlc_log_iterator_t *p_iter, libvlc_exception_t *p_e )
 {
-    if( p_iter )
-    {
-        free(p_iter);
-    }
-    else
-        RAISEVOID("Invalid log iterator!");
+    free( p_iter );
 }
 
 int libvlc_log_iterator_has_next( const libvlc_log_iterator_t *p_iter, libvlc_exception_t *p_e )
 {
-    if( p_iter )
-    {
+    if( !p_iter )
+        return 0;
     return p_iter->i_pos != p_iter->i_end;
-    }
-    RAISEZERO("Invalid log iterator!");
 }
 
 libvlc_log_message_t *libvlc_log_iterator_next( libvlc_log_iterator_t *p_iter,
@@ -207,9 +195,8 @@ libvlc_log_message_t *libvlc_log_iterator_next( libvlc_log_iterator_t *p_iter,
     unsigned i_pos;
 
     if( !p_iter )
-        RAISENULL("Invalid log iterator!");
-    if( !buffer )
-        RAISENULL("Invalid message buffer!");
+        return NULL;
+    assert( buffer );
 
     i_pos = p_iter->i_pos;
     if( i_pos != p_iter->i_end )