h2_comm.h (3383B)
1 /* SPDX-License-Identifier: LGPL-2.1-or-later OR (GPL-2.0-or-later WITH eCos-exception-2.0) */ 2 /* 3 This file is part of GNU libmicrohttpd. 4 Copyright (C) 2025 Evgeny Grin (Karlson2k) 5 6 GNU libmicrohttpd is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Lesser General Public 8 License as published by the Free Software Foundation; either 9 version 2.1 of the License, or (at your option) any later version. 10 11 GNU libmicrohttpd is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Lesser General Public License for more details. 15 16 Alternatively, you can redistribute GNU libmicrohttpd and/or 17 modify it under the terms of the GNU General Public License as 18 published by the Free Software Foundation; either version 2 of 19 the License, or (at your option) any later version, together 20 with the eCos exception, as follows: 21 22 As a special exception, if other files instantiate templates or 23 use macros or inline functions from this file, or you compile this 24 file and link it with other works to produce a work based on this 25 file, this file does not by itself cause the resulting work to be 26 covered by the GNU General Public License. However the source code 27 for this file must still be made available in accordance with 28 section (3) of the GNU General Public License v2. 29 30 This exception does not invalidate any other reasons why a work 31 based on this file might be covered by the GNU General Public 32 License. 33 34 You should have received copies of the GNU Lesser General Public 35 License and the GNU General Public License along with this library; 36 if not, see <https://www.gnu.org/licenses/>. 37 */ 38 39 /** 40 * @file src/mhd2/h2/h2_comm.h 41 * @brief Declarations of HTTP/2 connection communication functions 42 * @author Karlson2k (Evgeny Grin) 43 */ 44 45 #ifndef MHD_H2_COMM_H 46 #define MHD_H2_COMM_H 1 47 48 #include "mhd_sys_options.h" 49 50 #include "sys_bool_type.h" 51 52 #include "mhd_comm_layer_state.h" 53 54 struct MHD_Connection; /* forward declaration */ 55 56 /** 57 * Perform initial (blank) initialisation of HTTP/2 connection data 58 * @param c the connection to initialise 59 */ 60 #ifndef HAVE_NULL_PTR_ALL_ZEROS 61 MHD_INTERNAL void 62 mhd_h2_blank_init (struct MHD_Connection *restrict c); 63 64 MHD_FN_PAR_NONNULL_ALL_; 65 #else /* ! HAVE_NULL_PTR_ALL_ZEROS */ 66 #define mhd_h2_blank_init(c) ((void) 0) 67 #endif /* ! HAVE_NULL_PTR_ALL_ZEROS */ 68 69 /** 70 * Perform handshaking of HTTP communication layer. 71 * 72 * Update @a c->h_layer and switch to HTTP/2 mode as necessary. 73 * @param c the connection to use 74 * @return #mhd_COMM_LAYER_PROCESSING if preface processing is not completed, 75 * #mhd_COMM_LAYER_OK if HTTP communication can be performed now, 76 * #mhd_COMM_LAYER_BROKEN if connection is broken and should be closed. 77 */ 78 MHD_INTERNAL enum mhd_CommLayerState 79 mhd_h2_process_preface (struct MHD_Connection *restrict c) 80 MHD_FN_PAR_NONNULL_ALL_; 81 82 83 MHD_INTERNAL void 84 mhd_h2_conn_state_update (struct MHD_Connection *restrict c) 85 MHD_FN_PAR_NONNULL_ALL_; 86 87 88 MHD_INTERNAL bool 89 mhd_h2_conn_process_data (struct MHD_Connection *restrict c) 90 MHD_FN_PAR_NONNULL_ALL_; 91 92 MHD_INTERNAL void 93 mhd_h2_conn_h2_deinit_start_closing (struct MHD_Connection *restrict c) 94 MHD_FN_PAR_NONNULL_ALL_; 95 96 #endif /* ! MHD_H2_COMM_H */