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| 3666 | mejdrech | 1 | /* |
| 2 | * Copyright (c) 2008 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 | |||
| 29 | /** @addtogroup net |
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| 3846 | mejdrech | 30 | * @{ |
| 3666 | mejdrech | 31 | */ |
| 32 | |||
| 33 | /** @file |
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| 3846 | mejdrech | 34 | * Common error processing codes and routines. |
| 3666 | mejdrech | 35 | */ |
| 36 | |||
| 37 | #ifndef __NET_ERR_H__ |
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| 38 | #define __NET_ERR_H__ |
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| 3846 | mejdrech | 39 | |
| 3666 | mejdrech | 40 | #include <errno.h> |
| 41 | |||
| 3846 | mejdrech | 42 | /** An actual stored error code. |
| 43 | */ |
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| 44 | #define ERROR_CODE error_check_return_value |
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| 45 | |||
| 46 | /** An error processing routines declaration. |
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| 47 | * This has to be declared in the block where the error processing is desired. |
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| 48 | */ |
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| 49 | #define ERROR_DECLARE int ERROR_CODE |
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| 50 | |||
| 51 | /** Stores the value as an error code and checks if an error occured. |
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| 52 | * @param value The value to be checked. May be a function call. Input parameter. |
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| 53 | * @returns FALSE if the value indicates success (EOK). |
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| 54 | * @returns TRUE otherwise. |
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| 55 | */ |
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| 3666 | mejdrech | 56 | #define ERROR_OCCURED( value ) (( ERROR_CODE = ( value )) != EOK ) |
| 3846 | mejdrech | 57 | |
| 58 | /** Checks if an error occured and immediatelly exits the actual function returning the error code. |
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| 59 | * @param value The value to be checked. May be a function call. Input parameter. |
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| 60 | */ |
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| 3666 | mejdrech | 61 | #define ERROR_PROPAGATE( value ) if( ERROR_OCCURED( value )) return ERROR_CODE |
| 62 | |||
| 63 | #endif |
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| 64 | |||
| 65 | /** @} |
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| 66 | */ |