mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
synced 2024-12-29 17:22:07 +00:00
39f75da7bc
Delete/fixup few includes in anticipation of global -isystem compile option removal. Note: crypto/aegis128-neon-inner.c keeps <stddef.h> due to redefinition of uintptr_t error (one definition comes from <stddef.h>, another from <linux/types.h>). Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
82 lines
1.5 KiB
C
82 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2020 Intel Corporation
|
|
* Author: Johannes Berg <johannes@sipsolutions.net>
|
|
*/
|
|
#include <stdbool.h>
|
|
#include <os.h>
|
|
#include <errno.h>
|
|
#include <sched.h>
|
|
#include <unistd.h>
|
|
#include <kern_util.h>
|
|
#include <sys/select.h>
|
|
#include <stdio.h>
|
|
#include <sys/timerfd.h>
|
|
#include "rtc.h"
|
|
|
|
static int uml_rtc_irq_fds[2];
|
|
|
|
void uml_rtc_send_timetravel_alarm(void)
|
|
{
|
|
unsigned long long c = 1;
|
|
|
|
CATCH_EINTR(write(uml_rtc_irq_fds[1], &c, sizeof(c)));
|
|
}
|
|
|
|
int uml_rtc_start(bool timetravel)
|
|
{
|
|
int err;
|
|
|
|
if (timetravel) {
|
|
int err = os_pipe(uml_rtc_irq_fds, 1, 1);
|
|
if (err)
|
|
goto fail;
|
|
} else {
|
|
uml_rtc_irq_fds[0] = timerfd_create(CLOCK_REALTIME, TFD_CLOEXEC);
|
|
if (uml_rtc_irq_fds[0] < 0) {
|
|
err = -errno;
|
|
goto fail;
|
|
}
|
|
|
|
/* apparently timerfd won't send SIGIO, use workaround */
|
|
sigio_broken(uml_rtc_irq_fds[0]);
|
|
err = add_sigio_fd(uml_rtc_irq_fds[0]);
|
|
if (err < 0) {
|
|
close(uml_rtc_irq_fds[0]);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
return uml_rtc_irq_fds[0];
|
|
fail:
|
|
uml_rtc_stop(timetravel);
|
|
return err;
|
|
}
|
|
|
|
int uml_rtc_enable_alarm(unsigned long long delta_seconds)
|
|
{
|
|
struct itimerspec it = {
|
|
.it_value = {
|
|
.tv_sec = delta_seconds,
|
|
},
|
|
};
|
|
|
|
if (timerfd_settime(uml_rtc_irq_fds[0], 0, &it, NULL))
|
|
return -errno;
|
|
return 0;
|
|
}
|
|
|
|
void uml_rtc_disable_alarm(void)
|
|
{
|
|
uml_rtc_enable_alarm(0);
|
|
}
|
|
|
|
void uml_rtc_stop(bool timetravel)
|
|
{
|
|
if (timetravel)
|
|
os_close_file(uml_rtc_irq_fds[1]);
|
|
else
|
|
ignore_sigio_fd(uml_rtc_irq_fds[0]);
|
|
os_close_file(uml_rtc_irq_fds[0]);
|
|
}
|