haiku/headers/private/system/user_timer_defs.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

51 lines
1.4 KiB
C

/*
* Copyright 2011, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
#ifndef _SYSTEM_USER_TIMER_DEFS_H
#define _SYSTEM_USER_TIMER_DEFS_H
#include <limits.h>
#include <time.h>
#include <SupportDefs.h>
#define CLOCK_PROCESS_USER_CPUTIME_ID ((clockid_t)-4)
/* clock measuring the used user CPU time of the current process */
// limits
#define MAX_USER_TIMERS_PER_TEAM _POSIX_TIMER_MAX
// maximum numbers of user-defined user timers (timer_create())
#define MAX_USER_TIMER_OVERRUN_COUNT INT_MAX
// cap value of a timer's overrun counter
#if MAX_USER_TIMER_OVERRUN_COUNT < _POSIX_DELAYTIMER_MAX
# error "MAX_USER_TIMER_OVERRUN_COUNT < _POSIX_DELAYTIMER_MAX"
#endif
#define USER_TIMER_REAL_TIME_ID 0
// predefined ID for the real time timer
#define USER_TIMER_TEAM_TOTAL_TIME_ID 1
// predefined ID for the team's total (kernel + user) time timer
#define USER_TIMER_TEAM_USER_TIME_ID 2
// predefined ID for the team's user time timer
#define USER_TIMER_FIRST_USER_DEFINED_ID 3
// first ID assigned to a user-defined timer (timer_create())
// _kern_create_user_timer() flag:
#define USER_TIMER_SIGNAL_THREAD 0x01
// send the signal to the thread instead of the team (valid only for thread
// timers)
struct user_timer_info {
bigtime_t remaining_time;
bigtime_t interval;
uint32 overrun_count;
};
#endif /* _SYSTEM_USER_TIMER_DEFS_H */