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os-k/kaleid/libbuf/bmisc.c

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2019-05-07 23:16:56 +02:00
//----------------------------------------------------------------------------//
// 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); }