X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/fwd/blobdiff_plain/755e6619263d316dc46fa504e0c333c963ec8eaa..57ceb980e3c55306f3f70f92604703abf132cf27:/target.c

diff --git a/target.c b/target.c
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+/* -*-c-*-
+ *
+ * Common functionality for targets
+ *
+ * (c) 2018 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------*
+ *
+ * This file is part of the `fwd' port forwarder.
+ *
+ * `fwd' is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * `fwd' is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with `fwd'.  If not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*----- Header files ------------------------------------------------------*/
+
+#include "fwd.h"
+
+/*----- Main code ---------------------------------------------------------*/
+
+/* --- @target_inc@ --- *
+ *
+ * Arguments:	@target *t@ = pointer to a source
+ *
+ * Returns:	---
+ *
+ * Use:		Increments a target's refcount.
+ */
+
+void target_inc(target *t) { t->ref++; }
+
+/* --- @target_dec@ --- *
+ *
+ * Arguments:	@target *t@ = pointer to a target
+ *
+ * Returns:	---
+ *
+ * Use:		Decrements a target's refcount, destroying it if necessary.
+ */
+
+void target_dec(target *t)
+{
+  assert(t->ref > 0);
+  t->ref--;
+  if (!t->ref) t->ops->destroy(t);
+}
+
+/*----- That's all, folks -------------------------------------------------*/