From 46f96ed5e3127394a0cd4dcb961404b792f743b4 Mon Sep 17 00:00:00 2001
From: Jakub Slawinski
Date: Thu, 10 Jul 2014 10:24:59 +0200
Subject: Initial project structure based on Active Port Forwarder 0.8.4.

---
 src/task_struct.c | 122 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 src/task_struct.c

(limited to 'src/task_struct.c')

diff --git a/src/task_struct.c b/src/task_struct.c
new file mode 100644
index 0000000..283bbe8
--- /dev/null
+++ b/src/task_struct.c
@@ -0,0 +1,122 @@
+/*
+ * active port forwarder - software for secure forwarding
+ * Copyright (C) 2003-2007 jeremian <jeremian [at] poczta.fm>
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <config.h>
+
+#include <stdlib.h>
+#include <assert.h>
+
+#include "task_struct.h"
+
+/*
+ * Function name: Task_new
+ * Description: Creates and initializes new task. User is responsible for
+ *              allocating/freeing memory pointed by the pointers.
+ * Arguments: timerp - pointer to timeval structure used to counte time (required)
+ *            function - pointer to function executed when the time is out (optional)
+ *            data - pointer to data passed to function executed when the time is out (optional)
+ *            clean - pointer to function that frees the data
+ * Returns: Pointer to newly created Task structure.
+ */
+
+Task*
+Task_new(struct timeval* timerp, void (*function)(void*), void* data, void (*clean)(void**))
+{
+  Task* tmp;
+  assert(timerp != NULL);
+  if (timerp == NULL) {
+    return NULL;
+  }
+  tmp = calloc(1, sizeof(Task));
+  assert(tmp != NULL);
+  if (tmp == NULL) {
+    return NULL;
+  }
+  tmp->timerp = timerp;
+  tmp->function = function;
+  tmp->data = data;
+  tmp->clean = clean;
+
+  return tmp;
+}
+
+/*
+ * Function name: Task_free
+ * Description: Frees the memory allocated for Task structure. User has to free the memory at the
+ *              pointers by his own.
+ * Arguments: task - pointer to pointer to Task structure
+ */
+
+void
+Task_free(Task** task)
+{
+  assert(task != NULL);
+  if (task == NULL) {
+    return;
+  }
+  assert((*task) != NULL);
+  if ((*task) == NULL) {
+    return;
+  }
+
+  if ((*task)->clean) {
+    if ((*task)->data) {
+      (*task)->clean(&((*task)->data));
+    }
+  }
+  
+  free((*task));
+  (*task) = NULL;
+}
+
+/*
+ * Function name: Task_get_timer
+ * Description: Returns the timer of the task.
+ * Arguments: task - pointer to Task structure
+ * Returns: The timer of the task.
+ */
+
+struct timeval*
+Task_get_timer(Task* task)
+{
+  assert(task != NULL);
+  if (task == NULL) {
+    return NULL;
+  }
+  return task->timerp;
+}
+
+/*
+ * Function name: Task_exec
+ * Description: Executes the function encapsulated in the task.
+ * Arguments: task - pointer to Task structure
+ */
+
+void
+Task_exec(Task* task)
+{
+  assert(task != NULL);
+  if (task == NULL) {
+    return;
+  }
+  if (task->function) {
+    task->function(task->data);
+  }
+}
-- 
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