curl/lib/content_encoding.h

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#ifndef HEADER_CURL_CONTENT_ENCODING_H
#define HEADER_CURL_CONTENT_ENCODING_H
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/***************************************************************************
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* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
*
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* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
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*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
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***************************************************************************/
build: fix circular header inclusion with other packages This commit renames lib/setup.h to lib/curl_setup.h and renames lib/setup_once.h to lib/curl_setup_once.h. Removes the need and usage of a header inclusion guard foreign to libcurl. [1] Removes the need and presence of an alarming notice we carried in old setup_once.h [2] ---------------------------------------- 1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H, this single inclusion guard is enough to ensure that inclusion of lib/setup_once.h done from lib/setup.h is only done once. Additionally lib/setup.h has always used __SETUP_ONCE_H macro to protect inclusion of setup_once.h even after commit ec691ca3, this was to avoid a circular header inclusion triggered when building a c-ares enabled version with c-ares sources available which also has a setup_once.h header. Commit ec691ca3 exposes the real nature of __SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard foreign to libcurl belonging to c-ares's setup_once.h The renaming this commit does, fixes the circular header inclusion, and as such removes the need and usage of a header inclusion guard foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl. 2 - Due to the circular interdependency of old lib/setup_once.h and the c-ares setup_once.h header, old file lib/setup_once.h has carried back from 2006 up to now days an alarming and prominent notice about the need of keeping libcurl's and c-ares's setup_once.h in sync. Given that this commit fixes the circular interdependency, the need and presence of mentioned notice is removed. All mentioned interdependencies come back from now old days when the c-ares project lived inside a curl subdirectory. This commit removes last traces of such fact.
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#include "curl_setup.h"
/* Decoding writer. */
typedef struct contenc_writer_s contenc_writer;
typedef struct content_encoding_s content_encoding;
struct contenc_writer_s {
const content_encoding *handler; /* Encoding handler. */
contenc_writer *downstream; /* Downstream writer. */
void *params; /* Encoding-specific storage (variable length). */
};
/* Content encoding writer. */
struct content_encoding_s {
const char *name; /* Encoding name. */
const char *alias; /* Encoding name alias. */
CURLcode (*init_writer)(struct connectdata *conn, contenc_writer *writer);
CURLcode (*unencode_write)(struct connectdata *conn, contenc_writer *writer,
const char *buf, size_t nbytes);
void (*close_writer)(struct connectdata *conn, contenc_writer *writer);
size_t paramsize;
};
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CURLcode Curl_build_unencoding_stack(struct connectdata *conn,
const char *enclist, int maybechunked);
CURLcode Curl_unencode_write(struct connectdata *conn, contenc_writer *writer,
const char *buf, size_t nbytes);
void Curl_unencode_cleanup(struct connectdata *conn);
char *Curl_all_content_encodings(void);
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#endif /* HEADER_CURL_CONTENT_ENCODING_H */