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Diffstat (limited to 'c/src/exec/posix/src/sched.c')
-rw-r--r-- | c/src/exec/posix/src/sched.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/c/src/exec/posix/src/sched.c b/c/src/exec/posix/src/sched.c new file mode 100644 index 0000000000..230fe5dbbb --- /dev/null +++ b/c/src/exec/posix/src/sched.c @@ -0,0 +1,126 @@ +/* sched.c + * + */ + +#include <sched.h> +#include <rtems/score/tod.h> +#include <rtems/score/thread.h> +#include <rtems/posix/priority.h> + +#ifdef NOT_IMPLEMENTED_YET + +/*PAGE + * + * 13.3.1 Set Scheduling Parameters, P1003.1b-1993, p. 252 + * + */ + +int sched_setparam( + pid_t pid, + const struct sched_param *param +) +{ + return POSIX_NOT_IMPLEMENTED(); +} + +/*PAGE + * + * 13.3.2 Set Scheduling Parameters, P1003.1b-1993, p. 253 + */ + +int sched_getparam( + pid_t pid, + const struct sched_param *param +) +{ + return POSIX_NOT_IMPLEMENTED(); +} + +/*PAGE + * + * 13.3.3 Set Scheduling Policy and Scheduling Parameters, + * P1003.1b-1993, p. 254 + */ + +int sched_setscheduler( + pid_t pid, + int policy, + const struct sched_param *param +) +{ + return POSIX_NOT_IMPLEMENTED(); +} + +/*PAGE + * + * 13.3.4 Get Scheduling Policy, P1003.1b-1993, p. 256 + */ + +int sched_getscheduler( + pid_t pid +) +{ + return POSIX_NOT_IMPLEMENTED(); +} + +#endif + +/*PAGE + * + * 13.3.6 Get Scheduling Parameter Limits, P1003.1b-1993, p. 258 + */ + +int sched_get_priority_max( + int policy +) +{ + /* XXX error check the policy */ + return POSIX_SCHEDULER_MAXIMUM_PRIORITY; +} + +/*PAGE + * + * 13.3.6 Get Scheduling Parameter Limits, P1003.1b-1993, p. 258 + */ + +int sched_get_priority_min( + int policy +) +{ + /* XXX error check the policy */ + return POSIX_SCHEDULER_MINIMUM_PRIORITY; +} + +/*PAGE + * + * 13.3.6 Get Scheduling Parameter Limits, P1003.1b-1993, p. 258 + */ + +int sched_rr_get_interval( + pid_t pid, + struct timespec *interval +) +{ + time_t us_per_quantum; + + /* XXX eventually should support different time quantums per thread */ + + /* XXX should get for errors? (bad pid) */ + + us_per_quantum = _TOD_Microseconds_per_tick * _Thread_Ticks_per_timeslice; + + interval->tv_sec = us_per_quantum / TOD_MICROSECONDS_PER_SECOND; + interval->tv_nsec = (us_per_quantum % TOD_MICROSECONDS_PER_SECOND) * 1000; + return 0; +} + +/*PAGE + * + * 13.3.5 Yield Processor, P1003.1b-1993, p. 257 + */ + +int sched_yield( void ) +{ + _Thread_Yield_processor(); + return 0; +} |