void mavlink_logbuffer_write(struct mavlink_logbuffer *lb, const struct mavlink_logmessage *elem)
{
int end = (lb->start + lb->count) % lb->size;
memcpy(&(lb->elems[end]), elem, sizeof(struct mavlink_logmessage));
if (mavlink_logbuffer_is_full(lb)) {
lb->start = (lb->start + 1) % lb->size; /* full, overwrite */
} else {
++lb->count;
}
}
__EXPORT void mavlink_logbuffer_vasprintf(struct mavlink_logbuffer *lb, int severity, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
int end = (lb->start + lb->count) % lb->size;
lb->elems[end].severity = severity;
vsnprintf(lb->elems[end].text, sizeof(lb->elems[0].text), fmt, ap);
va_end(ap);
/* increase count */
if (mavlink_logbuffer_is_full(lb)) {
lb->start = (lb->start + 1) % lb->size; /* full, overwrite */
} else {
++lb->count;
}
}
