43cd111198
An application can now register an application defined callback function, which will perform the actual logging. This provides additional flexibility compared to logging to stderr with a hardcoded format. Applications can now easily display the messages in their user interface, customize the format, etc. Although the internal logging function is a printf like function, the arguments are converted into a plain string before being passed to the callback function. This greatly improves interoperability with programming languages which don't support C style variadic functions (e.g. Python, C#, etc).
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*
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* libdivecomputer
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*
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* Copyright (C) 2012 Jef Driesen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifndef DC_CONTEXT_H
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#define DC_CONTEXT_H
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#include "common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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typedef struct dc_context_t dc_context_t;
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typedef enum dc_loglevel_t {
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DC_LOGLEVEL_NONE,
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DC_LOGLEVEL_ERROR,
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DC_LOGLEVEL_WARNING,
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DC_LOGLEVEL_INFO,
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DC_LOGLEVEL_DEBUG,
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DC_LOGLEVEL_ALL
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} dc_loglevel_t;
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typedef void (*dc_logfunc_t) (dc_context_t *context, dc_loglevel_t loglevel, const char *file, unsigned int line, const char *function, const char *message, void *userdata);
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dc_status_t
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dc_context_new (dc_context_t **context);
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dc_status_t
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dc_context_free (dc_context_t *context);
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dc_status_t
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dc_context_set_loglevel (dc_context_t *context, dc_loglevel_t loglevel);
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dc_status_t
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dc_context_set_logfunc (dc_context_t *context, dc_logfunc_t logfunc, void *userdata);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* DC_CONTEXT_H */
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