librt/kernel-posix-cpu-timers.h

   1 /* Parameters for the Linux kernel ABI for CPU clocks.  */
   2
   3 #define CPUCLOCK_PID(clock)             ((pid_t) ~((clock) >> 3))
   4 #define CPUCLOCK_PERTHREAD(clock) \
   5         (((clock) & (clockid_t) CPUCLOCK_PERTHREAD_MASK) != 0)
   6 #define CPUCLOCK_PID_MASK       7
   7 #define CPUCLOCK_PERTHREAD_MASK 4
   8 #define CPUCLOCK_WHICH(clock)   ((clock) & (clockid_t) CPUCLOCK_CLOCK_MASK)
   9 #define CPUCLOCK_CLOCK_MASK     3
  10 #define CPUCLOCK_PROF           0
  11 #define CPUCLOCK_VIRT           1
  12 #define CPUCLOCK_SCHED          2
  13 #define CPUCLOCK_MAX            3
  14
  15 #define MAKE_PROCESS_CPUCLOCK(pid, clock) \
  16         ((~(clockid_t) (pid) << 3) | (clockid_t) (clock))
  17 #define MAKE_THREAD_CPUCLOCK(tid, clock) \
  18         MAKE_PROCESS_CPUCLOCK((tid), (clock) | CPUCLOCK_PERTHREAD_MASK)