Echelon Neuron C Instrukcja Użytkownika Pobierz pdf (Strona 103)

Neuron C Reference Guide 83

when (flush_completes)

{

// Go to sleep

nothing_to_do = FALSE;

sleep();

}

flush_cancel( ) Function

The flush_cancel( ) function cancels a flush in progress.

Syntax

#include <control.h>

void flush_cancel (void);

Example

boolean nothing_to_do;

...

when (nv_update_occurs)

{

if (nothing_to_do) {

// was getting ready to sleep but received an input NV

nothing_to_do = FALSE;

flush_cancel();

}

flush_wait( ) Function

The flush_wait( ) function causes an application program to enter preemption

mode, during which all outstanding network variable and message transactions

are completed. When a program switches from asynchronous to direct event

processing, flush_wait( ) is used to ensure that all pending asynchronous

transactions are completed before direct event processing begins.

During preemption mode, only pending completion events (for example,

msg_completes or nv_update_fails) and pending response events (for example,

resp_arrives or nv_update_occurs) are processed. When this processing is

complete, flush_wait( ) returns. The application program can now process

network variables and messages directly and need not concern itself with

outstanding completion events and responses from earlier transactions.

Syntax

#include <control.h>

void flush_wait (void);

Example

msg_tag TAG1;

network output SNVT_volt nvoVoltage;

1 2 ... 98 99 100 101 102 103 104 105 106 107 108 ... 266 267

Brak uwag

Echelon Neuron C Instrukcja Użytkownika Strona 103