haiku/headers/private/libroot/time_private.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

89 lines
1.5 KiB
C

/*
* Copyright 2011, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
#ifndef _LIBROOT_TIME_PRIVATE_H
#define _LIBROOT_TIME_PRIVATE_H
#include <errno.h>
#include <sys/cdefs.h>
#include <sys/time.h>
#include <time.h>
#include <SupportDefs.h>
#include <new>
#define CLOCKS_PER_SEC_BEOS 1000
#define CLK_TCK_BEOS CLOCKS_PER_SEC_BEOS
#define MICROSECONDS_PER_CLOCK_TICK (1000000 / CLOCKS_PER_SEC)
#define MICROSECONDS_PER_CLOCK_TICK_BEOS (1000000 / CLOCKS_PER_SEC_BEOS)
struct __timer_t {
int32 id;
thread_id thread;
void SetTo(int32 id, thread_id thread)
{
this->id = id;
this->thread = thread;
}
};
static inline void
bigtime_to_timespec(bigtime_t time, timespec& spec)
{
spec.tv_sec = time / 1000000;
spec.tv_nsec = (time % 1000000) * 1000;
}
static inline bool
timespec_to_bigtime(const timespec& spec, bigtime_t& _time)
{
if (spec.tv_sec < 0 || spec.tv_nsec < 0 || spec.tv_nsec >= 1000000000)
return false;
_time = (bigtime_t)spec.tv_sec * 1000000 + (spec.tv_nsec + 999) / 1000;
return true;
}
static inline bool
timeval_to_timespec(const timeval& val, timespec& spec)
{
if (val.tv_sec < 0 || val.tv_usec < 0 || val.tv_usec >= 1000000)
return false;
spec.tv_sec = val.tv_sec;
spec.tv_nsec = val.tv_usec * 1000;
return true;
}
static inline void
timespec_to_timeval(const timespec& spec, timeval& val)
{
val.tv_sec = spec.tv_sec;
val.tv_usec = spec.tv_nsec / 1000;
}
__BEGIN_DECLS
clock_t __clock_beos(void);
clock_t __clock(void);
__END_DECLS
#endif // _LIBROOT_TIME_PRIVATE_H