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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Lukas Mejdrech |
2 | * Copyright (c) 2009 Lukas Mejdrech |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup net |
29 | /** @addtogroup net |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | /** @file |
33 | /** @file |
34 | * Common error processing codes and routines. |
34 | * Common error processing codes and routines. |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #ifndef __NET_ERR_H__ |
37 | #ifndef __NET_ERR_H__ |
38 | #define __NET_ERR_H__ |
38 | #define __NET_ERR_H__ |
39 | 39 | ||
40 | #include <errno.h> |
40 | #include <errno.h> |
41 | 41 | ||
42 | /** An actual stored error code. |
42 | /** An actual stored error code. |
43 | */ |
43 | */ |
44 | #define ERROR_CODE error_check_return_value |
44 | #define ERROR_CODE error_check_return_value |
45 | 45 | ||
46 | /** An error processing routines declaration. |
46 | /** An error processing routines declaration. |
47 | * This has to be declared in the block where the error processing is desired. |
47 | * This has to be declared in the block where the error processing is desired. |
48 | */ |
48 | */ |
49 | #define ERROR_DECLARE int ERROR_CODE |
49 | #define ERROR_DECLARE int ERROR_CODE |
50 | 50 | ||
51 | /** Stores the value as an error code and checks if an error occured. |
51 | /** Stores the value as an error code and checks if an error occurred. |
52 | * @param value The value to be checked. May be a function call. Input parameter. |
52 | * @param value The value to be checked. May be a function call. Input parameter. |
53 | * @returns FALSE if the value indicates success (EOK). |
53 | * @returns FALSE if the value indicates success (EOK). |
54 | * @returns TRUE otherwise. |
54 | * @returns TRUE otherwise. |
55 | */ |
55 | */ |
56 | #define ERROR_OCCURED( value ) (( ERROR_CODE = ( value )) != EOK ) |
56 | #define ERROR_OCCURRED( value ) (( ERROR_CODE = ( value )) != EOK ) |
57 | 57 | ||
58 | /** Checks if an error occured and immediatelly exits the actual function returning the error code. |
58 | /** Checks if an error occurred and immediately exits the actual function returning the error code. |
59 | * @param value The value to be checked. May be a function call. Input parameter. |
59 | * @param value The value to be checked. May be a function call. Input parameter. |
60 | */ |
60 | */ |
61 | #define ERROR_PROPAGATE( value ) if( ERROR_OCCURED( value )) return ERROR_CODE |
61 | #define ERROR_PROPAGATE( value ) if( ERROR_OCCURRED( value )) return ERROR_CODE |
62 | 62 | ||
63 | #endif |
63 | #endif |
64 | 64 | ||
65 | /** @} |
65 | /** @} |
66 | */ |
66 | */ |
67 | 67 |