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/*
* 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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