lib/Task.cc


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#include <sys/time.h>
#include <iostream.h>
#include "TaskMan.h"
#include "Task.h"
#include "String.h"

Task::Task() : state(TASK_ON_HOLD), suspended(false) {
    TaskMan::AddTask(this);
}
Task::~Task() {
    TaskMan::RemoveTask(this);
}

int Task::Do() throw (GeneralException) {
    return TASK_ON_HOLD;
}

int Task::Run() {
    cerr << "Running task '" << GetName() << "'...\n";
    try {
	cerr << "Launching method Do()...\n";
	state = Do();
    }
    catch (TaskSwitch) {
	cerr << "Catch a task switching.\n";
	throw;
    }
    catch (GeneralException e) {
	cerr << "Task " << GetName() << " caused an unexpected exception: '" << e.GetMsg() << "', closing it.\n";
	return TASK_DONE;
    }
    
    cerr << "Task exitted normally.\n";
        
    return state;
}

int Task::GetState() {
    return state;
}

String Task::GetName() {
    return "Unknow Task";
}

void Task::Suspend() throw (GeneralException) {
    cerr << "Suspending task " << GetName() << "...\n";
    suspended = true;
    throw TaskSwitch();
}

void Task::WaitFor(Handle * h) {
    w4ha.push_back(h);
}

void Task::WaitFor(Task * t) {
    w4ta.push_back(t);
}

void Task::WaitFor(pid_t p) {
    w4pr.push_back(p);
}

void Task::WaitFor(timeval t) {
    w4to.push_back(t);
}