| #ifndef _LINUX_TIME_H |
| #define _LINUX_TIME_H |
| |
| #include <linux/types.h> |
| |
| |
| #ifndef _STRUCT_TIMESPEC |
| #define _STRUCT_TIMESPEC |
| struct timespec { |
| __kernel_time_t tv_sec; /* seconds */ |
| long tv_nsec; /* nanoseconds */ |
| }; |
| #endif |
| |
| struct timeval { |
| __kernel_time_t tv_sec; /* seconds */ |
| __kernel_suseconds_t tv_usec; /* microseconds */ |
| }; |
| |
| struct timezone { |
| int tz_minuteswest; /* minutes west of Greenwich */ |
| int tz_dsttime; /* type of dst correction */ |
| }; |
| |
| |
| #define NFDBITS __NFDBITS |
| |
| #define FD_SETSIZE __FD_SETSIZE |
| #define FD_SET(fd,fdsetp) __FD_SET(fd,fdsetp) |
| #define FD_CLR(fd,fdsetp) __FD_CLR(fd,fdsetp) |
| #define FD_ISSET(fd,fdsetp) __FD_ISSET(fd,fdsetp) |
| #define FD_ZERO(fdsetp) __FD_ZERO(fdsetp) |
| |
| /* |
| * Names of the interval timers, and structure |
| * defining a timer setting: |
| */ |
| #define ITIMER_REAL 0 |
| #define ITIMER_VIRTUAL 1 |
| #define ITIMER_PROF 2 |
| |
| struct itimerspec { |
| struct timespec it_interval; /* timer period */ |
| struct timespec it_value; /* timer expiration */ |
| }; |
| |
| struct itimerval { |
| struct timeval it_interval; /* timer interval */ |
| struct timeval it_value; /* current value */ |
| }; |
| |
| /* |
| * The IDs of the various system clocks (for POSIX.1b interval timers): |
| */ |
| #define CLOCK_REALTIME 0 |
| #define CLOCK_MONOTONIC 1 |
| #define CLOCK_PROCESS_CPUTIME_ID 2 |
| #define CLOCK_THREAD_CPUTIME_ID 3 |
| #define CLOCK_MONOTONIC_RAW 4 |
| |
| /* |
| * The IDs of various hardware clocks: |
| */ |
| #define CLOCK_SGI_CYCLE 10 |
| #define MAX_CLOCKS 16 |
| #define CLOCKS_MASK (CLOCK_REALTIME | CLOCK_MONOTONIC) |
| #define CLOCKS_MONO CLOCK_MONOTONIC |
| |
| /* |
| * The various flags for setting POSIX.1b interval timers: |
| */ |
| #define TIMER_ABSTIME 0x01 |
| |
| #endif |