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[time] Add Linux time source using gettimeofday()

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2012-05-04 17:53:23 +01:00
parent 6f3e7e90fc
commit 6ed905aba2
5 changed files with 65 additions and 2 deletions
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2
src/config/defaults/linux.h
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@ -15,7 +15,7 @@
#define SMBIOS_LINUX
#define SANBOOT_NULL
#define ENTROPY_LINUX
#define TIME_NULL
#define TIME_LINUX
#define DRIVERS_LINUX

18
src/include/ipxe/linux/linux_time.h Normal file
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@ -0,0 +1,18 @@
#ifndef _IPXE_LINUX_TIME_H
#define _IPXE_LINUX_TIME_H
/** @file
*
* Linux time source
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#ifdef TIME_LINUX
#define TIME_PREFIX_linux
#else
#define TIME_PREFIX_linux __linux_
#endif
#endif /* _IPXE_LINUX_TIME_H */

1
src/include/ipxe/time.h
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@ -44,6 +44,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
/* Include all architecture-independent time API headers */
#include <ipxe/null_time.h>
#include <ipxe/linux/linux_time.h>
/* Include all architecture-dependent time API headers */
#include <bits/time.h>

1
src/include/linux_api.h
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@ -37,7 +37,6 @@ FILE_LICENCE(GPL2_OR_LATER);
#include <linux/types.h>
#include <linux/posix_types.h>
typedef __kernel_pid_t pid_t;
typedef __kernel_time_t time_t;
typedef __kernel_suseconds_t suseconds_t;
typedef __kernel_loff_t loff_t;
#include <linux/time.h>

45
src/interface/linux/linux_time.c Normal file
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@ -0,0 +1,45 @@
/*
* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
*
* This program 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 2 of the
* License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
FILE_LICENCE ( GPL2_OR_LATER );
/** @file
*
* Linux time source
*
*/
#include <stdint.h>
#include <errno.h>
#include <linux_api.h>
#include <ipxe/time.h>
/**
* Get current time in seconds
*
* @ret time Time, in seconds
*/
static time_t linux_now ( void ) {
struct timeval now;
linux_gettimeofday ( &now, NULL );
return now.tv_sec;
}
PROVIDE_TIME ( linux, time_now, linux_now );