55 lines
2.3 KiB
C
55 lines
2.3 KiB
C
//----------------------------------------------------------------------------//
|
|
// OS on Kaleid //
|
|
// //
|
|
// Desc: Buffer library //
|
|
// //
|
|
// //
|
|
// Copyright © 2018-2020 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 <libbuf.h>
|
|
|
|
//
|
|
// Closes a buffer, not flushing unless the proper flag is set
|
|
//
|
|
error_t BCloseBuf(Buffer_t *buf)
|
|
{
|
|
assert_always(buf);
|
|
ExAcquireLock(&buf->lock);
|
|
|
|
if (buf->flags & BF_FONCLOSE) {
|
|
BFlushBuf(buf);
|
|
}
|
|
|
|
if (buf->flags & BF_SALLOC && buf->buf) {
|
|
free(buf->buf);
|
|
}
|
|
|
|
buf->buf = buf->rp = buf->wp = NULL;
|
|
buf->flags = buf->state = buf->size = 0;
|
|
|
|
ExReleaseLock(&buf->lock);
|
|
|
|
if (buf->flags & BF_BALLOC) {
|
|
free(buf);
|
|
}
|
|
|
|
return EOK;
|
|
}
|
|
|