51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
|
|
* This file is part of Jehanne.
|
|
*
|
|
* Copyright (C) 2015 Giacomo Tesio <giacomo@tesio.it>
|
|
*
|
|
* Jehanne 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, version 2 of the License.
|
|
*
|
|
* Jehanne 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 Jehanne. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <u.h>
|
|
#include <libc.h>
|
|
|
|
int
|
|
jehanne_awakened(int64_t wakeup)
|
|
{
|
|
/* awake returns the ticks of the scheduled wakeup in negative,
|
|
* thus a wakeup is in the past iff (-sys_awake(0)) >= (-wakeup)
|
|
*
|
|
* NOTE: this is not a macro so that we can change the sys_awake()
|
|
* implementation in the future, without affecting the client code.
|
|
*/
|
|
assert(wakeup < 0);
|
|
return wakeup >= sys_awake(0);
|
|
}
|
|
|
|
int
|
|
jehanne_forgivewkp(int64_t wakeup)
|
|
{
|
|
/* awake returns the ticks of the scheduled wakeup in negative,
|
|
* and is able to remove a wakeup provided such value.
|
|
*
|
|
* jehanne_forgivewkp() is just a wrapper to hide sys_awake()'s details that
|
|
* could change in the future and make client code easier to
|
|
* read.
|
|
*
|
|
* NOTE: this is not a macro so that we can change the sys_awake()
|
|
* implementation in the future, without affecting the client code.
|
|
*/
|
|
assert(wakeup < 0);
|
|
return sys_awake(wakeup);
|
|
}
|