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/*
* Baltisot
* Copyright (C) 1999-2007 Nicolas "Pixel" Noble
*
* 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
*/
/* $Id: Task.cc,v 1.33 2007-05-30 11:57:10 pixel Exp $ */
#ifndef _WIN32
#include <sys/time.h>
#endif
#include <iostream>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "TaskMan.h"
#include "Task.h"
#include "BString.h"
#include "gettext.h"
Task::Task() : current(0), state(TASK_ON_HOLD), stopped(false), suspended(false), wbta(0), wta(0), BurstHandle(0) {
TaskMan::AddTask(this);
}
Task::~Task() {
TaskMan::RemoveFromWatches(this);
TaskMan::RemoveTimeout(this);
if (wbta)
wbta->wta = 0;
if (wta)
wta->wbta = 0;
}
int Task::Do() throw (GeneralException) {
return TASK_ON_HOLD;
}
int Task::Run() {
if (TaskMan::Event() == Task::EVT_TASK)
wta = 0;
try {
state = Do();
}
catch (TaskSwitch) {
return state;
}
catch (GeneralException e) {
std::cerr << _("Task ") << GetName() << _(" caused an unexpected exception: \"") << e.GetMsg() << _("\". Terminating.\n");
state = TASK_DONE;
return TASK_DONE;
}
return state;
}
int Task::DryRun() {
while (state != TASK_DONE) {
try {
state = Do();
}
catch (TaskSwitch) {
}
catch (GeneralException e) {
std::cerr << _("Task ") << GetName() << _(" caused an unexpected exception during dry-run: \"") << e.GetMsg() << _("\". Terminating.\n");
state = TASK_DONE;
}
}
return state;
}
int Task::GetState() {
return state;
}
String Task::GetName() {
return _("Unknow Task");
}
void Task::Suspend(int newstate) throw (GeneralException) {
if (newstate != -1) {
state = newstate;
}
suspended = true;
throw TaskSwitch();
}
void Task::WaitFor(Handle * h, int flags) {
h->SetNonBlock();
TaskMan::WaitFor(h, this, flags);
}
void Task::WaitFor(Task * t) {
t->wbta = this;
wta = t;
}
void Task::WaitFor(pid_t p) {
TaskMan::WaitFor(p, this);
}
void Task::WaitFor(const timeval & t, int flags) {
TaskMan::WaitFor(t, this, flags);
}
void Task::SetBurst() {
state = TASK_BURST;
}
void Task::Stop() {
stopped = true;
}
void Task::Restart() {
stopped = false;
}
bool Task::IsStopped() {
return stopped;
}
Task * Task::WaitedBy() {
return wbta;
}
void Task::RemoveFromWatches() {
wbta = 0;
}
void Task::RemoveTimeout() {
TaskMan::RemoveTimeout(this);
}
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