Mercurial > projects > libpws
annotate pws-record.c @ 5:b3fc9f7e2b43
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author | Guido Berhoerster <guido+libpws@berhoerster.name> |
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date | Thu, 10 Jan 2019 08:05:32 +0100 |
parents | d541e748cfd8 |
children | 956e97003bad |
rev | line source |
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1 /* |
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2 * Copyright (C) 2015 Guido Berhoerster <guido+libpws@berhoerster.name> |
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3 * |
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4 * Permission is hereby granted, free of charge, to any person obtaining |
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5 * a copy of this software and associated documentation files (the |
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6 * "Software"), to deal in the Software without restriction, including |
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7 * without limitation the rights to use, copy, modify, merge, publish, |
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8 * distribute, sublicense, and/or sell copies of the Software, and to |
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9 * permit persons to whom the Software is furnished to do so, subject to |
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10 * the following conditions: |
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11 * |
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12 * The above copyright notice and this permission notice shall be included |
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13 * in all copies or substantial portions of the Software. |
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14 * |
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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22 */ |
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23 |
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24 #include "compat.h" |
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25 |
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26 #include <stdlib.h> |
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27 |
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28 #include "pws-internal.h" |
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29 |
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30 void |
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31 pws3_record_destroy(struct pws3_record *record) |
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32 { |
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33 size_t i; |
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34 |
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35 if (record == NULL) { |
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36 return; |
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37 } |
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38 |
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39 for (i = 0x01; i <= 0xff; i++) { |
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40 pws3_field_destroy(record->fields[i]); |
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41 } |
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42 pws_free(record, sizeof (record)); |
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43 } |
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44 |
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45 struct pws3_record * |
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46 pws3_record_create(void) |
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47 { |
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48 struct pws3_field *uuid_field = NULL; |
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49 unsigned char uuid[PWS3_UUID_SIZE]; |
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50 struct pws3_record *record = NULL; |
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51 size_t i; |
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52 |
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53 /* |
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54 * always add an UUID field which is mandatory and needed for inserting |
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55 * a record into a database |
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56 */ |
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57 if (pws_generate_uuid(uuid) != 0) { |
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58 goto err; |
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59 } |
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60 uuid_field = pws3_field_create(0, PWS3_RECORD_FIELD_UUID); |
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61 if (uuid_field == NULL) { |
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62 goto err; |
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63 } |
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64 pws3_field_set_uuid(uuid_field, uuid); |
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65 |
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66 record = pws_alloc(sizeof (struct pws3_record)); |
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67 if (record == NULL) { |
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68 goto err; |
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69 } |
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70 |
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71 for (i = 0x00; i <= 0xff; i++) { |
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72 record->fields[i] = NULL; |
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73 } |
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74 |
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75 pws3_record_set_field(record, uuid_field); |
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76 |
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77 return (record); |
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78 err: |
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79 pws3_field_destroy(uuid_field); |
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80 pws_free(record, (record != NULL) ? sizeof (struct pws3_record) : 0); |
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81 |
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82 return (NULL); |
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83 } |
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84 |
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85 void |
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86 pws3_record_set_field(struct pws3_record *record, struct pws3_field *field) |
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87 { |
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88 uint8_t field_type; |
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89 |
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90 PWS_ASSERT(!pws3_field_is_header(field)); |
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91 PWS_ASSERT((pws3_field_get_data_type(field) != PWS_DATA_TYPE_TEXT) || |
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92 (field->value.text != NULL)); |
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93 PWS_ASSERT((pws3_field_get_data_type(field) != PWS_DATA_TYPE_BYTES) || |
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94 (field->value.bytes != NULL)); |
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95 |
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96 field_type = pws3_field_get_type(field); |
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97 pws3_field_destroy(pws3_record_remove_field(record, field_type)); |
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98 record->fields[field_type] = field; |
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99 } |
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100 |
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101 struct pws3_field * |
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102 pws3_record_get_field(struct pws3_record *record, uint8_t field_type) |
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103 { |
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104 return (record->fields[field_type]); |
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105 } |
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106 |
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107 struct pws3_field * |
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108 pws3_record_remove_field(struct pws3_record *record, uint8_t field_type) |
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109 { |
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110 struct pws3_field *field; |
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111 |
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112 field = pws3_record_get_field(record, field_type); |
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113 record->fields[field_type] = NULL; |
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114 |
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115 return (field); |
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116 } |