| 1 | /*
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| 2 | * Copyright (c) 2009 Lukas Mejdrech
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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 net
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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 | * Common error processing codes and routines.
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| 35 | */
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| 36 |
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| 37 | #ifndef __NET_ERR_H__
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| 38 | #define __NET_ERR_H__
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| 39 |
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| 40 | #include <errno.h>
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| 41 |
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| 42 | #ifdef CONFIG_DEBUG
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| 43 |
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| 44 | #include <stdio.h>
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| 45 |
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| 46 | #endif
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| 47 |
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| 48 | /** An actual stored error code.
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| 49 | */
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| 50 | #define ERROR_CODE error_check_return_value
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| 51 |
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| 52 | /** An error processing routines declaration.
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| 53 | * This has to be declared in the block where the error processing is desired.
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| 54 | */
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| 55 | #define ERROR_DECLARE int ERROR_CODE
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| 56 |
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| 57 | /** Stores the value as an error code and checks if an error occurred.
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| 58 | * @param[in] value The value to be checked. May be a function call.
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| 59 | * @returns FALSE if the value indicates success (EOK).
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| 60 | * @returns TRUE otherwise.
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| 61 | */
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| 62 | #ifdef CONFIG_DEBUG
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| 63 |
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| 64 | #define ERROR_OCCURRED( value ) ((( ERROR_CODE = ( value )) != EOK ) && ({ printf( "error at %s:%d %d\n", __FILE__, __LINE__, ERROR_CODE ); 1; }))
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| 65 |
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| 66 | #else
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| 67 |
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| 68 | #define ERROR_OCCURRED( value ) (( ERROR_CODE = ( value )) != EOK )
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| 69 |
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| 70 | #endif
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| 71 |
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| 72 | /** Checks if an error occurred and immediately exits the actual function returning the error code.
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| 73 | * @param[in] value The value to be checked. May be a function call.
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| 74 | */
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| 75 |
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| 76 | #define ERROR_PROPAGATE( value ) if( ERROR_OCCURRED( value )) return ERROR_CODE
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| 77 |
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| 78 | #endif
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| 79 |
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| 80 | /** @}
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| 81 | */
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