void OSTimeDly (OS_TICK dly, OS_OPT opt, OS_ERR *p_err) { CPU_SR_ALLOC(); #ifdef OS_SAFETY_CRITICAL if (p_err == (OS_ERR *)0) { OS_SAFETY_CRITICAL_EXCEPTION(); return; } #endif #if OS_CFG_CALLED_FROM_ISR_CHK_EN > 0u if (OSIntNestingCtr > (OS_NESTING_CTR)0u) { /* Not allowed to call from an ISR */ *p_err = OS_ERR_TIME_DLY_ISR; return; } #endif if (OSSchedLockNestingCtr > (OS_NESTING_CTR)0u) { /* Can't delay when the scheduler is locked */ *p_err = OS_ERR_SCHED_LOCKED; return; } switch (opt) { case OS_OPT_TIME_DLY: case OS_OPT_TIME_TIMEOUT: case OS_OPT_TIME_PERIODIC: if (dly == (OS_TICK)0u) { /* 0 means no delay! */ *p_err = OS_ERR_TIME_ZERO_DLY; return; } break; case OS_OPT_TIME_MATCH: break; default: *p_err = OS_ERR_OPT_INVALID; return; } OS_CRITICAL_ENTER(); OSTCBCurPtr->TaskState = OS_TASK_STATE_DLY; OS_TickListInsert(OSTCBCurPtr, dly, opt, p_err); if (*p_err != OS_ERR_NONE) { OS_CRITICAL_EXIT_NO_SCHED(); return; } OS_RdyListRemove(OSTCBCurPtr); /* Remove current task from ready list */ OS_CRITICAL_EXIT_NO_SCHED(); OSSched(); /* Find next task to run! */ *p_err = OS_ERR_NONE; }
void OS_TickListInsertDly (OS_TCB *p_tcb, OS_TICK time, OS_OPT opt, OS_ERR *p_err) { OS_TICK remain; if (opt == OS_OPT_TIME_MATCH) { /* MATCH to absolute OSTickCtr value mode */ remain = time - OSTickCtr; if ((remain > OS_TICK_TH_RDY) || /* If delay already occurred, ... */ (remain == (OS_TICK)0u)) { p_tcb->TickRemain = (OS_TICK)0u; *p_err = OS_ERR_TIME_ZERO_DLY; /* ... do NOT delay. */ return; } } else if (opt == OS_OPT_TIME_PERIODIC) { /* PERIODIC mode. */ if ((OSTickCtr - p_tcb->TickCtrPrev) > time) { remain = time; /* ... first time we load .TickCtrPrev */ p_tcb->TickCtrPrev = OSTickCtr + time; } else { remain = time - (OSTickCtr - p_tcb->TickCtrPrev); if ((remain > OS_TICK_TH_RDY) || /* If delay time has already passed, ... */ (remain == (OS_TICK)0u)) { p_tcb->TickCtrPrev += time + time * ((OSTickCtr - p_tcb->TickCtrPrev) / time); /* Try to recover the period */ p_tcb->TickRemain = (OS_TICK)0u; *p_err = OS_ERR_TIME_ZERO_DLY; /* ... do NOT delay. */ return; } p_tcb->TickCtrPrev += time; } } else if (time > (OS_TICK)0u) { /* RELATIVE time delay mode */ remain = time; } else { /* Zero time delay; ... */ p_tcb->TickRemain = (OS_TICK)0u; *p_err = OS_ERR_TIME_ZERO_DLY; /* ... do NOT delay. */ return; } p_tcb->TaskState = OS_TASK_STATE_DLY; OS_TickListInsert(&OSTickListDly, p_tcb, remain); *p_err = OS_ERR_NONE; }
void OSTimeDlyHMSM (CPU_INT16U hours, CPU_INT16U minutes, CPU_INT16U seconds, CPU_INT32U milli, OS_OPT opt, OS_ERR *p_err) { #if OS_CFG_ARG_CHK_EN > 0u CPU_BOOLEAN opt_invalid; CPU_BOOLEAN opt_non_strict; #endif OS_OPT opt_time; OS_RATE_HZ tick_rate; OS_TICK ticks; CPU_SR_ALLOC(); #ifdef OS_SAFETY_CRITICAL if (p_err == (OS_ERR *)0) { OS_SAFETY_CRITICAL_EXCEPTION(); return; } #endif #if OS_CFG_CALLED_FROM_ISR_CHK_EN > 0u if (OSIntNestingCtr > (OS_NESTING_CTR)0u) { /* Not allowed to call from an ISR */ *p_err = OS_ERR_TIME_DLY_ISR; return; } #endif if (OSSchedLockNestingCtr > (OS_NESTING_CTR)0u) { /* Can't delay when the scheduler is locked */ *p_err = OS_ERR_SCHED_LOCKED; return; } opt_time = opt & OS_OPT_TIME_MASK; /* Retrieve time options only. */ switch (opt_time) { case OS_OPT_TIME_DLY: case OS_OPT_TIME_TIMEOUT: case OS_OPT_TIME_PERIODIC: if (milli == (CPU_INT32U)0u) { /* Make sure we didn't specify a 0 delay */ if (seconds == (CPU_INT16U)0u) { if (minutes == (CPU_INT16U)0u) { if (hours == (CPU_INT16U)0u) { *p_err = OS_ERR_TIME_ZERO_DLY; return; } } } } break; case OS_OPT_TIME_MATCH: break; default: *p_err = OS_ERR_OPT_INVALID; return; } #if OS_CFG_ARG_CHK_EN > 0u /* Validate arguments to be within range */ opt_invalid = DEF_BIT_IS_SET_ANY(opt, ~OS_OPT_TIME_OPTS_MASK); if (opt_invalid == DEF_YES) { *p_err = OS_ERR_OPT_INVALID; return; } opt_non_strict = DEF_BIT_IS_SET(opt, OS_OPT_TIME_HMSM_NON_STRICT); if (opt_non_strict != DEF_YES) { if (milli > (CPU_INT32U)999u) { *p_err = OS_ERR_TIME_INVALID_MILLISECONDS; return; } if (seconds > (CPU_INT16U)59u) { *p_err = OS_ERR_TIME_INVALID_SECONDS; return; } if (minutes > (CPU_INT16U)59u) { *p_err = OS_ERR_TIME_INVALID_MINUTES; return; } if (hours > (CPU_INT16U)99u) { *p_err = OS_ERR_TIME_INVALID_HOURS; return; } } else { if (minutes > (CPU_INT16U)9999u) { *p_err = OS_ERR_TIME_INVALID_MINUTES; return; } if (hours > (CPU_INT16U)999u) { *p_err = OS_ERR_TIME_INVALID_HOURS; return; } } #endif /* Compute the total number of clock ticks required.. */ /* .. (rounded to the nearest tick) */ tick_rate = OSCfg_TickRate_Hz; ticks = ((OS_TICK)hours * (OS_TICK)3600u + (OS_TICK)minutes * (OS_TICK)60u + (OS_TICK)seconds) * tick_rate + (tick_rate * ((OS_TICK)milli + (OS_TICK)500u / tick_rate)) / (OS_TICK)1000u; if (ticks > (OS_TICK)0u) { OS_CRITICAL_ENTER(); OSTCBCurPtr->TaskState = OS_TASK_STATE_DLY; OS_TickListInsert(OSTCBCurPtr, ticks, opt_time, p_err); if (*p_err != OS_ERR_NONE) { OS_CRITICAL_EXIT_NO_SCHED(); return; } OS_RdyListRemove(OSTCBCurPtr); /* Remove current task from ready list */ OS_CRITICAL_EXIT_NO_SCHED(); OSSched(); /* Find next task to run! */ *p_err = OS_ERR_NONE; } else { *p_err = OS_ERR_TIME_ZERO_DLY; } }