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-rw-r--r--error.h82
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-/*
- * Copyright (c) 2009-2018 Richard Braun.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Upstream site with license notes :
- * http://git.sceen.net/rbraun/librbraun.git/
- */
-
-#ifndef _ERROR_H
-#define _ERROR_H
-
-#include <stdnoreturn.h>
-
-#include "macros.h"
-
-/*
- * List of errors this library can return.
- *
- * ERROR_SUCCESS is guaranteed to be 0, allowing code such as :
- *
- * error = do_smth();
- *
- * if (error) {
- * ...;
- * }
- */
-enum {
- ERROR_SUCCESS,
- ERROR_UNKNOWN,
- ERROR_INVAL,
- ERROR_NOMEM,
- ERROR_FORMAT,
- ERROR_NORES,
- ERROR_PERM,
- ERROR_BUSY,
- ERROR_TIMEDOUT,
- ERROR_AGAIN,
- ERROR_EXIST,
-};
-
-/*
- * Return the message matching the given error.
- *
- * The returned address points to a statically allocated, read only,
- * null-terminated string literal. The caller must not attempt to use it
- * for anything else than error reporting.
- */
-const char * error_str(unsigned int error);
-
-/*
- * Map standard error codes to error values.
- *
- * This function accepts a subset of the standard error codes in errno.h.
- * When called, and if the errno value is handled, it will return the
- * corresponding ERROR_xxx code. Otherwise ERROR_UNKNOWN is returned.
- */
-unsigned int error_from_errno(int errno_code);
-
-/*
- * If error denotes an actual error (i.e. is not 0), abort, using the given
- * string as a prefix for the error message. A NULL prefix is allowed.
- */
-void error_check(int error, const char *prefix);
-
-#endif /* _ERROR_H */