lsquic_frame_writer.h revision 19f667fb
1229fce07SDmitri Tikhonov/* Copyright (c) 2017 - 2019 LiteSpeed Technologies Inc.  See LICENSE. */
250aadb33SDmitri Tikhonov/*
350aadb33SDmitri Tikhonov * lsquic_frame_writer.h -- write frames to HEADERS stream.
450aadb33SDmitri Tikhonov */
550aadb33SDmitri Tikhonov
650aadb33SDmitri Tikhonov#ifndef LSQUIC_FRAME_WRITER_H
750aadb33SDmitri Tikhonov#define LSQUIC_FRAME_WRITER_H 1
850aadb33SDmitri Tikhonov
950aadb33SDmitri Tikhonov#include <stddef.h>
1050aadb33SDmitri Tikhonov#include <stdint.h>
1150aadb33SDmitri Tikhonov
123b55e6aeSDmitri Tikhonov#define MAX_HEADERS_SIZE (64 * 1024)
133b55e6aeSDmitri Tikhonov
1450aadb33SDmitri Tikhonovstruct iovec;
15bea64822SDmitri Tikhonovstruct lshpack_enc;
1650aadb33SDmitri Tikhonovstruct lsquic_mm;
1750aadb33SDmitri Tikhonovstruct lsquic_frame_writer;
1850aadb33SDmitri Tikhonovstruct lsquic_stream;
1950aadb33SDmitri Tikhonovstruct lsquic_http_headers;
2050aadb33SDmitri Tikhonovstruct lsquic_http2_setting;
2119f667fbSDmitri Tikhonov#if LSQUIC_CONN_STATS
2219f667fbSDmitri Tikhonovstruct conn_stats;
2319f667fbSDmitri Tikhonov#endif
2450aadb33SDmitri Tikhonov
2550aadb33SDmitri Tikhonovtypedef ssize_t (*fw_write_f)(struct lsquic_stream *, const void *, size_t);
2650aadb33SDmitri Tikhonov
2750aadb33SDmitri Tikhonovstruct lsquic_frame_writer *
2850aadb33SDmitri Tikhonovlsquic_frame_writer_new (struct lsquic_mm *, struct lsquic_stream *,
29bea64822SDmitri Tikhonov                         unsigned max_frame_sz, struct lshpack_enc *,
3019f667fbSDmitri Tikhonov                         fw_write_f,
3119f667fbSDmitri Tikhonov#if LSQUIC_CONN_STATS
3219f667fbSDmitri Tikhonov                         struct conn_stats *,
3319f667fbSDmitri Tikhonov#endif
3419f667fbSDmitri Tikhonov                         int is_server);
3550aadb33SDmitri Tikhonov
3650aadb33SDmitri Tikhonovvoid
3750aadb33SDmitri Tikhonovlsquic_frame_writer_destroy (struct lsquic_frame_writer *);
3850aadb33SDmitri Tikhonov
3950aadb33SDmitri Tikhonovint
4050aadb33SDmitri Tikhonovlsquic_frame_writer_have_leftovers (const struct lsquic_frame_writer *);
4150aadb33SDmitri Tikhonov
4250aadb33SDmitri Tikhonovint
4350aadb33SDmitri Tikhonovlsquic_frame_writer_flush (struct lsquic_frame_writer *);
4450aadb33SDmitri Tikhonov
4550aadb33SDmitri Tikhonovint
4650aadb33SDmitri Tikhonovlsquic_frame_writer_write_headers (struct lsquic_frame_writer *,
4750aadb33SDmitri Tikhonov                                   uint32_t stream_id,
4850aadb33SDmitri Tikhonov                                   const struct lsquic_http_headers *,
4950aadb33SDmitri Tikhonov                                   int eos, unsigned weight);
5050aadb33SDmitri Tikhonov
5150aadb33SDmitri Tikhonovint
5250aadb33SDmitri Tikhonovlsquic_frame_writer_write_settings (struct lsquic_frame_writer *,
5350aadb33SDmitri Tikhonov    const struct lsquic_http2_setting *, unsigned n_settings);
5450aadb33SDmitri Tikhonov
5550aadb33SDmitri Tikhonovint
5650aadb33SDmitri Tikhonovlsquic_frame_writer_write_priority (struct lsquic_frame_writer *,
5750aadb33SDmitri Tikhonov            uint32_t stream_id, int exclusive, uint32_t stream_dep_id,
5850aadb33SDmitri Tikhonov            unsigned priority);
5950aadb33SDmitri Tikhonov
6050aadb33SDmitri Tikhonovint
6150aadb33SDmitri Tikhonovlsquic_frame_writer_write_promise (struct lsquic_frame_writer *,
6250aadb33SDmitri Tikhonov                       uint32_t stream_id, uint32_t promised_stream_id,
6350aadb33SDmitri Tikhonov                       const struct iovec *path, const struct iovec *host,
6450aadb33SDmitri Tikhonov                       const struct lsquic_http_headers *headers);
6550aadb33SDmitri Tikhonov
6650aadb33SDmitri Tikhonovvoid
6750aadb33SDmitri Tikhonovlsquic_frame_writer_max_header_list_size (struct lsquic_frame_writer *,
6850aadb33SDmitri Tikhonov                                          uint32_t max_size);
6950aadb33SDmitri Tikhonov
70c51ce338SDmitri Tikhonovsize_t
71c51ce338SDmitri Tikhonovlsquic_frame_writer_mem_used (const struct lsquic_frame_writer *);
72c51ce338SDmitri Tikhonov
7350aadb33SDmitri Tikhonov#endif
74