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141 lines
4.5 KiB
C
141 lines
4.5 KiB
C
#ifndef HEADER_CURL_LOG_H
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#define HEADER_CURL_LOG_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* 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.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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struct Curl_easy;
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struct Curl_cfilter;
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/**
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* Init logging, return != 0 on failure.
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*/
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CURLcode Curl_log_init(void);
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void Curl_infof(struct Curl_easy *, const char *fmt, ...);
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void Curl_failf(struct Curl_easy *, const char *fmt, ...);
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#if defined(CURL_DISABLE_VERBOSE_STRINGS)
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#if defined(HAVE_VARIADIC_MACROS_C99)
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#define infof(...) Curl_nop_stmt
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#elif defined(HAVE_VARIADIC_MACROS_GCC)
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#define infof(x...) Curl_nop_stmt
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#else
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#error "missing VARIADIC macro define, fix and rebuild!"
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#endif
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#else /* CURL_DISABLE_VERBOSE_STRINGS */
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#define infof Curl_infof
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#endif /* CURL_DISABLE_VERBOSE_STRINGS */
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#define failf Curl_failf
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#define CURL_LOG_DEFAULT 0
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#define CURL_LOG_DEBUG 1
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#define CURL_LOG_TRACE 2
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/* the function used to output verbose information */
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void Curl_debug(struct Curl_easy *data, curl_infotype type,
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char *ptr, size_t size);
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#ifdef DEBUGBUILD
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/* explainer: we have some mix configuration and werror settings
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* that define HAVE_VARIADIC_MACROS_C99 even though C89 is enforced
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* on gnuc and some other compiler. Need to treat carefully.
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*/
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#if defined(HAVE_VARIADIC_MACROS_C99) && \
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defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
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#define LOG_CF(data, cf, ...) \
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do { if(Curl_log_cf_is_debug(cf, data)) \
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Curl_log_cf_debug(data, cf, __VA_ARGS__); } while(0)
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#else
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#define LOG_CF Curl_log_cf_debug
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#endif
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void Curl_log_cf_debug(struct Curl_easy *data, struct Curl_cfilter *cf,
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#if defined(__GNUC__) && !defined(printf) && \
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defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
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!defined(__MINGW32__)
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const char *fmt, ...)
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__attribute__((format(printf, 3, 4)));
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#else
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const char *fmt, ...);
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#endif
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#define Curl_log_cf_is_debug(cf, data) \
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((data) && (data)->set.verbose && \
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(cf) && (cf)->cft->log_level >= CURL_LOG_DEBUG)
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#else /* !DEBUGBUILD */
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#if defined(HAVE_VARIADIC_MACROS_C99) && \
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defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
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#define LOG_CF(...) Curl_nop_stmt
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#define Curl_log_cf_debug(...) Curl_nop_stmt
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#elif defined(HAVE_VARIADIC_MACROS_GCC) && \
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defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
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#define LOG_CF(x...) Curl_nop_stmt
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#define Curl_log_cf_debug(x...) Curl_nop_stmt
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#else
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#define LOG_CF Curl_log_cf_debug
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/* without c99, we seem unable to completely define away this function. */
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void Curl_log_cf_debug(struct Curl_easy *data, struct Curl_cfilter *cf,
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const char *fmt, ...);
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#endif
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#define Curl_log_cf_is_debug(x,y) ((void)(x), (void)(y), FALSE)
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#endif /* !DEBUGBUILD */
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#define LOG_CF_IS_DEBUG(cf, data) Curl_log_cf_is_debug(cf, data)
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/* Macros intended for DEBUGF logging, use like:
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* DEBUGF(infof(data, CFMSG(cf, "this filter %s rocks"), "very much"));
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* and it will output:
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* [CONN-1-0][CF-SSL] this filter very much rocks
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* on connection #1 with sockindex 0 for filter of type "SSL". */
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#define DMSG(d,msg) \
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"[CONN-%ld] "msg, (d)->conn->connection_id
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#define DMSGI(d,i,msg) \
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"[CONN-%ld-%d] "msg, (d)->conn->connection_id, (i)
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#define CMSG(c,msg) \
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"[CONN-%ld] "msg, (c)->connection_id
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#define CMSGI(c,i,msg) \
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"[CONN-%ld-%d] "msg, (c)->connection_id, (i)
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#define CFMSG(cf,msg) \
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"[CONN-%ld-%d][CF-%s] "msg, (cf)->conn->connection_id, \
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(cf)->sockindex, (cf)->cft->name
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#endif /* HEADER_CURL_LOG_H */
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