Hi:
I am confued by the following keyword "atomic":
message_t* receive(message_t *msg, void *payload, uint8_t len) {
message_t *ret = msg;
atomic {
if (!uartFull)
{
ret = uartQueue[uartIn];
uartQueue[uartIn] = msg;
...
}
...
}
I think the context of these codes excute is "task specific ", no interrupt
occurs. so there is no need to use the keyword "atomic". any on give me a
shorter explanation？ thanks!
Best regards!
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