| 1 | /*
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| 2 | * Copyright (c) 2013 Martin Sucha
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup http
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| 30 | * @{
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| 31 | */
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| 32 | /**
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| 33 | * @file
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| 34 | */
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| 35 |
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| 36 | #ifndef HTTP_RECEIVE_BUFFER_H_
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| 37 | #define HTTP_RECEIVE_BUFFER_H_
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| 38 |
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| 39 | #include <adt/list.h>
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| 40 |
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| 41 | /** Receive data.
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| 42 | *
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| 43 | * @param client_data client data
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| 44 | * @param buf buffer to store the data
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| 45 | * @param buf_size buffer size
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| 46 | * @return number of bytes received or negative error code
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| 47 | */
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| 48 | typedef ssize_t (*receive_func_t)(void *, void *, size_t);
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| 49 |
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| 50 | typedef struct {
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| 51 | size_t size;
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| 52 | char *buffer;
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| 53 | size_t in;
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| 54 | size_t out;
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| 55 |
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| 56 | void *client_data;
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| 57 | receive_func_t receive;
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| 58 |
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| 59 | list_t marks;
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| 60 | } receive_buffer_t;
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| 61 |
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| 62 | typedef struct {
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| 63 | link_t link;
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| 64 | size_t offset;
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| 65 | } receive_buffer_mark_t;
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| 66 |
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| 67 | typedef bool (*char_class_func_t)(char);
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| 68 |
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| 69 | extern int recv_buffer_init(receive_buffer_t *, size_t, receive_func_t, void *);
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| 70 | extern int recv_buffer_init_const(receive_buffer_t *, void *, size_t);
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| 71 | extern void recv_buffer_fini(receive_buffer_t *);
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| 72 | extern void recv_reset(receive_buffer_t *);
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| 73 | extern void recv_mark(receive_buffer_t *, receive_buffer_mark_t *);
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| 74 | extern void recv_unmark(receive_buffer_t *, receive_buffer_mark_t *);
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| 75 | extern void recv_mark_update(receive_buffer_t *, receive_buffer_mark_t *);
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| 76 | extern int recv_cut(receive_buffer_t *, receive_buffer_mark_t *,
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| 77 | receive_buffer_mark_t *, void **, size_t *);
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| 78 | extern int recv_cut_str(receive_buffer_t *, receive_buffer_mark_t *,
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| 79 | receive_buffer_mark_t *, char **);
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| 80 | extern int recv_char(receive_buffer_t *, char *, bool);
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| 81 | extern ssize_t recv_buffer(receive_buffer_t *, char *, size_t);
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| 82 | extern ssize_t recv_discard(receive_buffer_t *, char);
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| 83 | extern ssize_t recv_discard_str(receive_buffer_t *, const char *);
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| 84 | extern ssize_t recv_while(receive_buffer_t *, char_class_func_t);
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| 85 | extern ssize_t recv_eol(receive_buffer_t *);
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| 86 | extern ssize_t recv_line(receive_buffer_t *, char *, size_t);
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| 87 |
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| 88 | #endif
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| 89 |
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| 90 | /** @}
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| 91 | */
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