Echelon Neuron C - Manual (Page 144)

124 Functions
if (offline()) {
// Requested to go offline
resp_cancel();
} else {
resp_send();
}
}
}
resp_free( ) Built-in Function
The resp_free( ) built-in function frees the resp_in object for a response. See
Chapter 6,
How Devices Communicate Using Application Messages, of the
Neuron C Programmer's Guide .
Syntax
void resp_free (void);
Example
void f(void)
{
...
if (resp_receive()) {
// Process message
...
resp_free();
}
...
}
resp_receive( ) Built-in Function
The resp_receive( ) built-in function receives a response into the resp_in object.
The function returns TRUE if a new response is received, otherwise it returns
FALSE. If no response is received, this function does not wait for one. A
program might need to use this function if it receives more than one response in a
single task, as in bypass mode. If there already is a received response when the
resp_receive( ) function is called, the earlier one is discarded (that is, its buffer
space is freed).
Note: Because this function defines a critical section boundary, it should never
be used in a when clause expression (that is, it
can be used within a task, but not
within the when clause itself). Using it in a when clause expression could result
in events being processed incorrectly.
See Chapter 6, How Devices Communicate Using Application Messages, of the
Neuron C Programmer's Guide for more information.
Syntax
boolean resp_receive (void);