haiku/headers/private/kernel/real_time_clock.h
Oliver Tappe 96ac47e312 Made some progress with consolidation of timezone-related code:
* renamed syscalls _kern_[gs]et_tzfilename 
  to _kern_[gs]et_real_time_clock_is_gmt, as the filename part is no longer
  relevant (and the two corresponding parameters were removed)
* C++-ified and reworked clockconfig to use the info from 'Time settings' 
  to setup the timezone info during boot
* removed invocation of _kern_get_tzfilename() from tzset(), as the syscall
  no longer exists and tzset() is currently broken anyway
* adjusted the Time preflet to use the renamed syscall when getting/setting 
  the RTC info


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37881 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-08-03 17:47:26 +00:00

53 lines
1.3 KiB
C

/*
* Copyright 2006-2007, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
* Copyright 2003, Jeff Ward, jeff@r2d2.stcloudstate.edu. All rights reserved.
*
* Distributed under the terms of the MIT License.
*/
#ifndef _KERNEL_REAL_TIME_CLOCK_H
#define _KERNEL_REAL_TIME_CLOCK_H
#include <KernelExport.h>
#include <time.h>
#define RTC_EPOCH_BASE_YEAR 1970
typedef struct rtc_info {
uint32 time;
bool is_gmt;
int32 tz_minuteswest;
bool tz_dsttime;
} rtc_info;
#ifdef __cplusplus
extern "C" {
#endif
status_t rtc_init(kernel_args *args);
bigtime_t rtc_boot_time(void);
// Returns the time at which the system was booted in microseconds since Jan 1, 1970 UTC.
status_t get_rtc_info(rtc_info *info);
// Both functions use the passed struct tm only partially
// (no tm_wday, tm_yday, tm_isdst).
uint32 rtc_tm_to_secs(const struct tm *t);
void rtc_secs_to_tm(uint32 seconds, struct tm *t);
bigtime_t _user_system_time(void);
status_t _user_set_real_time_clock(uint32 time);
status_t _user_set_timezone(int32 timezoneOffset, bool daylightSavingTime);
status_t _user_get_timezone(int32 *_timezoneOffset, bool *_daylightSavingTime);
status_t _user_set_real_time_clock_is_gmt(bool isGMT);
status_t _user_get_real_time_clock_is_gmt(bool *_isGMT);
#ifdef __cplusplus
}
#endif
#endif /* _KERNEL_REAL_TIME_CLOCK_H */