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Neuron C Reference Guide 113

}

msg_cancel( ) Built-in Function

The msg_cancel( ) built-in function cancels the message currently being built and

frees the associated buffer, allowing another message to be constructed.

If a message is constructed but not sent before the critical section (for example, a

task) is exited, the message is automatically cancelled. This function is used to

cancel both priority and nonpriority messages.

See Chapter 6,

How Devices Communicate Using Application Messages,

in the

Neuron C Programmer's Guide

for more information about application messages.

Syntax

void

msg_cancel (void);

Example

void f(void)

{

if (msg_alloc()) {

...

if (offline()) {

// Requested to go offline

msg_cancel();

} else {

msg_send();

}

msg_free( ) Built-in Function

The msg_free( ) built-in function frees the msg_in object for an incoming

message.

See Chapter 6,

How Devices Communicate Using Application Messages,

in the

Neuron C Programmer's Guide

for more information about application messages.

Syntax

void

msg_free (void);

Example

void f(void)

{

...

if (msg_receive()) {

// Process message

...

msg_free();

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