//===-- QueueList.cpp -------------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "lldb/Target/Process.h"
#include "lldb/Target/Queue.h"
#include "lldb/Target/QueueList.h"

using namespace lldb;
using namespace lldb_private;

QueueList::QueueList(Process *process) : m_process(process), m_stop_id(0), m_queues(), m_mutex()
{
}

QueueList::~QueueList ()
{
    Clear();
}

uint32_t
QueueList::GetSize ()
{
    std::lock_guard<std::mutex> guard(m_mutex);
    return m_queues.size();
}

lldb::QueueSP
QueueList::GetQueueAtIndex (uint32_t idx)
{
    std::lock_guard<std::mutex> guard(m_mutex);
    if (idx < m_queues.size())
    {
        return m_queues[idx];
    }
    else
    {
        return QueueSP();
    }
}

void
QueueList::Clear ()
{
    std::lock_guard<std::mutex> guard(m_mutex);
    m_queues.clear();
}

void
QueueList::AddQueue (QueueSP queue_sp)
{
    std::lock_guard<std::mutex> guard(m_mutex);
    if (queue_sp.get ())
    {
        m_queues.push_back (queue_sp);
    }
}

lldb::QueueSP
QueueList::FindQueueByID (lldb::queue_id_t qid)
{
    QueueSP ret;
    for (QueueSP queue_sp : Queues())
    {
        if (queue_sp->GetID() == qid)
        {
            ret = queue_sp;
            break;
        }
    }
    return ret;
}

lldb::QueueSP
QueueList::FindQueueByIndexID (uint32_t index_id)
{
    QueueSP ret;
    for (QueueSP queue_sp : Queues())
    {
        if (queue_sp->GetIndexID() == index_id)
        {
            ret = queue_sp;
            break;
        }
    }
    return ret;
}

std::mutex &
QueueList::GetMutex()
{
    return m_mutex;
}