haiku/headers/private/kernel/real_time_clock.h
Ingo Weinhold 24df65921b Merged signals-merge branch into trunk with the following changes:
* Reorganized the kernel locking related to threads and teams.
* We now discriminate correctly between process and thread signals. Signal
  handlers have been moved to teams. Fixes #5679.
* Implemented real-time signal support, including signal queuing, SA_SIGINFO
  support, sigqueue(), sigwaitinfo(), sigtimedwait(), waitid(), and the addition
  of the real-time signal range. Closes #1935 and #2695.
* Gave SIGBUS a separate signal number. Fixes #6704.
* Implemented <time.h> clock and timer support, and fixed/completed alarm() and
  [set]itimer(). Closes #5682.
* Implemented support for thread cancellation. Closes #5686.
* Moved send_signal() from <signal.h> to <OS.h>. Fixes #7554.
* Lots over smaller more or less related changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42116 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-06-12 00:00:23 +00:00

52 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>
struct kernel_args;
#define RTC_EPOCH_BASE_YEAR 1970
#ifdef __cplusplus
extern "C" {
#endif
void set_real_time_clock_usecs(bigtime_t currentTime);
status_t rtc_init(struct 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.
// 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);
uint32 get_timezone_offset(void);
bigtime_t _user_system_time(void);
status_t _user_set_real_time_clock(bigtime_t time);
status_t _user_set_timezone(int32 timezoneOffset, const char *name,
size_t nameLength);
status_t _user_get_timezone(int32 *_timezoneOffset, char* name,
size_t nameLength);
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 */