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/*
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_
#define _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


typedef ngx_int_t (*ngx_quic_frame_handler_pt)(ngx_connection_t *c,
    ngx_quic_frame_t *frame, void *data);


ngx_quic_frame_t *ngx_quic_alloc_frame(ngx_connection_t *c);
void ngx_quic_free_frame(ngx_connection_t *c, ngx_quic_frame_t *frame);
void ngx_quic_free_frames(ngx_connection_t *c, ngx_queue_t *frames);
void ngx_quic_queue_frame(ngx_quic_connection_t *qc, ngx_quic_frame_t *frame);
ngx_int_t ngx_quic_split_frame(ngx_connection_t *c, ngx_quic_frame_t *f,
    size_t len);

ngx_chain_t *ngx_quic_alloc_chain(ngx_connection_t *c);
void ngx_quic_free_chain(ngx_connection_t *c, ngx_chain_t *in);

ngx_chain_t *ngx_quic_copy_buffer(ngx_connection_t *c, u_char *data,
    size_t len);
ngx_chain_t *ngx_quic_read_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb,
    uint64_t limit);
ngx_chain_t *ngx_quic_write_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb,
    ngx_chain_t *in, uint64_t limit, uint64_t offset);
void ngx_quic_skip_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb,
    uint64_t offset);
void ngx_quic_free_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb);

#if (NGX_DEBUG)
void ngx_quic_log_frame(ngx_log_t *log, ngx_quic_frame_t *f, ngx_uint_t tx);
#else
#define ngx_quic_log_frame(log, f, tx)
#endif

#endif /* _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_ */