54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
#pragma once
|
|
#include <stdalign.h>
|
|
|
|
#include "fumocommon.h"
|
|
|
|
#define RINGBUF_T(RBUF_ITEM_T, RBUF_LEN) \
|
|
(&(struct RingBufferT) { \
|
|
.OFFSET = offsetof(struct { \
|
|
struct RingBufferHead head; \
|
|
RBUF_ITEM_T item; \
|
|
}, item), \
|
|
.SIZE = sizeof(RBUF_ITEM_T), \
|
|
.LEN = RBUF_LEN \
|
|
}) \
|
|
|
|
#define RINGBUF_HEAD_INIT ((struct RingBufferHead) { 0, 0 })
|
|
|
|
|
|
typedef const struct RingBufferT {
|
|
usize OFFSET;
|
|
usize SIZE;
|
|
usize LEN;
|
|
} *const RingBufferT;
|
|
|
|
struct RingBufferHead {
|
|
usize len;
|
|
usize start;
|
|
};
|
|
|
|
|
|
usize RingBufferEmpty(RingBufferT T, struct RingBufferHead *head);
|
|
|
|
void *RingBufferGet(
|
|
RingBufferT T,
|
|
struct RingBufferHead *head,
|
|
usize i
|
|
);
|
|
|
|
void *RingBufferNext(RingBufferT T, struct RingBufferHead *head);
|
|
|
|
void RingBufferAdd(RingBufferT T, struct RingBufferHead *dest, void *item);
|
|
|
|
void RingBufferTransfer(
|
|
RingBufferT T,
|
|
struct RingBufferHead *dest,
|
|
struct RingBufferHead *tmp
|
|
);
|
|
|
|
usize RingBufferOut(
|
|
RingBufferT T,
|
|
usize n,
|
|
void *dest,
|
|
struct RingBufferHead *src
|
|
); |