Function CircularBuffer_ResetReader

src/util/circular_buffer.c:93–106

sets the read pointer to the beginning of the buffer

// sets the read pointer to the beginning of the buffer
void CircularBuffer_ResetReader
(
	CircularBuffer cb  // circular buffer
) {
	// compensate for circularity
	uint64_t write = cb->write;
	uint write_idx = write / cb->item_size;
	int sub = write_idx - cb->item_count;
	if(sub >= 0) {
		cb->read = cb->data + (sub * cb->item_size);
	} else {
		cb->read = cb->end_marker + (sub * cb->item_size);
	}
}

// adds an item to buffer
// returns 1 on success, 0 otherwise