void * record_read(void * priv);
void * record_write(void * priv);
+// TODO: switchable between VRB(virtual ring buffer) and MRB(My Ring Buffer)
+
void mrb_init(mrb* rb, size_t size) {
rb->rb_ptr = malloc(size);
rb->rb_wt = rb->rb_rt = rb->rb_ab = 0;
return false;
}
if ( rb->rb_rt + size <= rb->rb_wt ) {
- // read bytes + newly taken bytes <= written max size
+ // read bytes + newly taken bytes <= buffer max size
memcpy(target, rb->rb_ptr + rb->rb_rt, size);
rb->rb_rt = rb->rb_rt + size;
}
else {
- // Ring Buffer wrapped.
+ // read bytes + newly taken bytes > buffer max size
+ // wrap around.
partial = RING_BUFFER_SIZE - rb->rb_rt;
memcpy(target, rb->rb_ptr + rb->rb_rt, partial);
memcpy(target + partial, rb->rb_ptr, size - partial);