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Cygwin: implement extensible clock interface

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- Drop hires_[nm]s clocks, rename hires.h to clock.h.

- Implement clk_t class as an extensible clock class in new file clock.cc.

- Introduce get_clock(clock_id) returning a pointer to the clk_t instance
  for clock_id.  Provide the following methods along the lines of the former
  hires classes:

	void		clk_t::nsecs (struct timespec *);
	ULONGLONG	clk_t::nsecs ();
	LONGLONG	clk_t::usecs ();
	LONGLONG	clk_t::msecs ();
	void 		clk_t::resolution (struct timespec *);

- Add CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_RAW, CLOCK_MONOTONIC_COARSE
  and CLOCK_BOOTTIME clocks.

- Allow clock_nanosleep, pthread_condattr_setclock and timer_create to use
  all new clocks (both clocks should be usable with a small tweak, though).

- Bump DLL major version to 2.12.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2018-11-27 13:47:02 +01:00
parent f4d6ef2d41
commit c05df02725
20 changed files with 541 additions and 297 deletions
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2
winsup/cygwin/sched.cc
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@@ -12,7 +12,7 @@
#include "miscfuncs.h"
#include "cygerrno.h"
#include "pinfo.h"
#include "hires.h"
#include "clock.h"
/* for getpid */
#include <unistd.h>
#include <sys/param.h>