| 1 | /* |
| 2 | * netlink/netlink-types.h Netlink Types |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation version 2.1 |
| 7 | * of the License. |
| 8 | * |
| 9 | * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch> |
| 10 | */ |
| 11 | |
| 12 | #ifndef __NETLINK_TYPES_H_ |
| 13 | #define __NETLINK_TYPES_H_ |
| 14 | |
| 15 | #include <stdio.h> |
| 16 | |
| 17 | /** |
| 18 | * Dumping types (dp_type) |
| 19 | * @ingroup utils |
| 20 | */ |
| 21 | enum nl_dump_type { |
| 22 | NL_DUMP_LINE, /**< Dump object briefly on one line */ |
| 23 | NL_DUMP_DETAILS, /**< Dump all attributes but no statistics */ |
| 24 | NL_DUMP_STATS, /**< Dump all attributes including statistics */ |
| 25 | NL_DUMP_ENV, /**< Dump all attribtues as env variables */ |
| 26 | __NL_DUMP_MAX, |
| 27 | }; |
| 28 | #define NL_DUMP_MAX (__NL_DUMP_MAX - 1) |
| 29 | |
| 30 | /** |
| 31 | * Dumping parameters |
| 32 | * @ingroup utils |
| 33 | */ |
| 34 | struct nl_dump_params |
| 35 | { |
| 36 | /** |
| 37 | * Specifies the type of dump that is requested. |
| 38 | */ |
| 39 | enum nl_dump_type dp_type; |
| 40 | |
| 41 | /** |
| 42 | * Specifies the number of whitespaces to be put in front |
| 43 | * of every new line (indentation). |
| 44 | */ |
| 45 | int dp_prefix; |
| 46 | |
| 47 | /** |
| 48 | * Causes the cache index to be printed for each element. |
| 49 | */ |
| 50 | int dp_print_index; |
| 51 | |
| 52 | /** |
| 53 | * Causes each element to be prefixed with the message type. |
| 54 | */ |
| 55 | int dp_dump_msgtype; |
| 56 | |
| 57 | /** |
| 58 | * A callback invoked for output |
| 59 | * |
| 60 | * Passed arguments are: |
| 61 | * - dumping parameters |
| 62 | * - string to append to the output |
| 63 | */ |
| 64 | void (*dp_cb)(struct nl_dump_params *, char *); |
| 65 | |
| 66 | /** |
| 67 | * A callback invoked for every new line, can be used to |
| 68 | * customize the indentation. |
| 69 | * |
| 70 | * Passed arguments are: |
| 71 | * - dumping parameters |
| 72 | * - line number starting from 0 |
| 73 | */ |
| 74 | void (*dp_nl_cb)(struct nl_dump_params *, int); |
| 75 | |
| 76 | /** |
| 77 | * User data pointer, can be used to pass data to callbacks. |
| 78 | */ |
| 79 | void *dp_data; |
| 80 | |
| 81 | /** |
| 82 | * File descriptor the dumping output should go to |
| 83 | */ |
| 84 | FILE * dp_fd; |
| 85 | |
| 86 | /** |
| 87 | * Alternatively the output may be redirected into a buffer |
| 88 | */ |
| 89 | char * dp_buf; |
| 90 | |
| 91 | /** |
| 92 | * Length of the buffer dp_buf |
| 93 | */ |
| 94 | size_t dp_buflen; |
| 95 | |
| 96 | /** |
| 97 | * PRIVATE |
| 98 | * Set if a dump was performed prior to the actual dump handler. |
| 99 | */ |
| 100 | int dp_pre_dump; |
| 101 | |
| 102 | /** |
| 103 | * PRIVATE |
| 104 | * Owned by the current caller |
| 105 | */ |
| 106 | int dp_ivar; |
| 107 | |
| 108 | unsigned int dp_line; |
| 109 | }; |
| 110 | |
| 111 | #ifndef __GNUC__ |
| 112 | #define __extension__ |
| 113 | #endif |
| 114 | |
| 115 | #define min_t(type,x,y) \ |
| 116 | __extension__({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) |
| 117 | #define max_t(type,x,y) \ |
| 118 | __extension__({ type __x = (x); type __y = (y); __x > __y ? __x: __y; }) |
| 119 | |
| 120 | |
| 121 | #endif |
| 122 | |
