56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
#pragma once
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#include <iso646.h>
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#include <stdalign.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "fumocommon.h"
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typedef const struct RingBufferT {
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size_t OFFSET;
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size_t SIZE;
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size_t LEN;
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} *const RingBufferT;
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struct RingBufferHead {
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size_t len;
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size_t start;
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};
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#define RINGBUF_T_INIT(RBUF_STRUCT, RBUF_ITEM, RBUF_LEN) \
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(&(struct RingBufferT) { \
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.OFFSET = offsetof(struct { \
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struct RingBufferHead head; \
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RBUF_ITEM item; \
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}, item), \
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.SIZE = sizeof(RBUF_ITEM), \
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.LEN = RBUF_LEN \
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}) \
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#define RINGBUF_HEAD_INIT ((struct RingBufferHead) { 0, 0 })
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size_t RingBufferEmpty(RingBufferT T, struct RingBufferHead *head);
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void *RingBufferGet(
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RingBufferT T,
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struct RingBufferHead *head,
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size_t i
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);
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void *RingBufferNext(RingBufferT T, struct RingBufferHead *head);
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void RingBufferAdd(RingBufferT T, struct RingBufferHead *dest, void *item);
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void RingBufferTransfer(
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RingBufferT T,
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struct RingBufferHead *dest,
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struct RingBufferHead *tmp
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);
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size_t RingBufferOut(
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RingBufferT T,
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size_t n,
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void *dest,
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struct RingBufferHead *src
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); |