//----------------------------------------------------------------------------//
//                           GNU GPL OS/K                                     //
//                                                                            //
//  Desc:       Buffer library                                                //
//                                                                            //
//                                                                            //
//  Copyright © 2018-2019 The OS/K Team                                       //
//                                                                            //
//  This file is part of OS/K.                                                //
//                                                                            //
//  OS/K 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 3 of the License, or         //
//  any later version.                                                        //
//                                                                            //
//  OS/K 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 OS/K.  If not, see <https://www.gnu.org/licenses/>.            //
//----------------------------------------------------------------------------//

#include <extras/buf.h>
#include <extras/locks.h>

// Straightforward functions
int BGetFlags(Buffer_t *buf) { return buf->flags; }
int BGetState(Buffer_t *buf) { return buf->state; }

void BEnableLineBuffering(Buffer_t *buf)
{ 
    assert(buf && !(buf->flags & BF_TERM));
    buf->flags |= BF_LINE;
}

void BDisaleLineBuffering(Buffer_t *buf)
{ 
    assert(buf && !(buf->flags & BF_TERM));
    buf->flags &= ~BF_LINE;
}

void BLockBuf(Buffer_t *buf)
{
    assert(buf && buf->initDone == INITOK);
    ExAcquireLock(&buf->lock);
}

void BUnlockBuf(Buffer_t *buf) { ExReleaseLock(&buf->lock); }
bool BTrylockBuf(Buffer_t *buf) { return ExAttemptLock(&buf->lock); }