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|---|---|---|---|
| 1 | /* GATE PROJECT LICENSE: | ||
| 2 | +----------------------------------------------------------------------------+ | ||
| 3 | | Copyright(c) 2018-2025, Stefan Meislinger <sm@opengate.at> | | ||
| 4 | | All rights reserved. | | ||
| 5 | | | | ||
| 6 | | Redistribution and use in source and binary forms, with or without | | ||
| 7 | | modification, are permitted provided that the following conditions are met:| | ||
| 8 | | | | ||
| 9 | | 1. Redistributions of source code must retain the above copyright notice, | | ||
| 10 | | this list of conditions and the following disclaimer. | | ||
| 11 | | 2. Redistributions in binary form must reproduce the above copyright | | ||
| 12 | | notice, this list of conditions and the following disclaimer in the | | ||
| 13 | | documentation and/or other materials provided with the distribution. | | ||
| 14 | | | | ||
| 15 | | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"| | ||
| 16 | | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | | ||
| 17 | | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | | ||
| 18 | | ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | | ||
| 19 | | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | | ||
| 20 | | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | | ||
| 21 | | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | | ||
| 22 | | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | | ||
| 23 | | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | | ||
| 24 | | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | | ||
| 25 | | THE POSSIBILITY OF SUCH DAMAGE. | | ||
| 26 | +----------------------------------------------------------------------------+ | ||
| 27 | */ | ||
| 28 | |||
| 29 | #include "gate/enumerators.h" | ||
| 30 | #include "gate/memalloc.h" | ||
| 31 | |||
| 32 | 2255 | gate_bool_t gate_enumerator_valid(gate_enumerator_t const* enumerator) | |
| 33 | { | ||
| 34 | 2255 | return enumerator->is_valid(enumerator); | |
| 35 | } | ||
| 36 | 2233 | gate_bool_t gate_enumerator_next(gate_enumerator_t* enumerator) | |
| 37 | { | ||
| 38 | 2233 | return enumerator->next(enumerator); | |
| 39 | } | ||
| 40 | 2449 | void const* gate_enumerator_get(gate_enumerator_t const* enumerator) | |
| 41 | { | ||
| 42 | 2449 | return enumerator->get(enumerator); | |
| 43 | } | ||
| 44 | |||
| 45 | ✗ | void const* gate_enumerator_next_item(gate_enumerator_t* enumerator) | |
| 46 | { | ||
| 47 | ✗ | if (enumerator->next(enumerator)) | |
| 48 | { | ||
| 49 | ✗ | return enumerator->get(enumerator); | |
| 50 | } | ||
| 51 | else | ||
| 52 | { | ||
| 53 | ✗ | return NULL; | |
| 54 | } | ||
| 55 | } | ||
| 56 | |||
| 57 | |||
| 58 | |||
| 59 | 11 | static gate_bool_t gate_enumerator_c_array_is_valid(struct gate_enumerator_class const* enumerator) | |
| 60 | { | ||
| 61 | 11 | return enumerator->current_position < enumerator->end_position; | |
| 62 | } | ||
| 63 | 10 | static gate_bool_t gate_enumerator_c_array_next(struct gate_enumerator_class* enumerator) | |
| 64 | { | ||
| 65 | 10 | gate_size_t item_size = (gate_size_t)enumerator->handles[0]; | |
| 66 | 10 | char* new_ptr = (char*)enumerator->current_position + item_size; | |
| 67 | 10 | enumerator->current_position = new_ptr; | |
| 68 | 10 | return enumerator->current_position < enumerator->end_position; | |
| 69 | } | ||
| 70 | 10 | static void const* gate_enumerator_c_array_get(struct gate_enumerator_class const* enumerator) | |
| 71 | { | ||
| 72 |
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10 | if (enumerator->current_position < enumerator->end_position) |
| 73 | { | ||
| 74 | 10 | return (void const*)enumerator->current_position; | |
| 75 | } | ||
| 76 | else | ||
| 77 | { | ||
| 78 | ✗ | return NULL; | |
| 79 | } | ||
| 80 | } | ||
| 81 | |||
| 82 | 1 | gate_enumerator_t* gate_enumerator_for_array(gate_enumerator_t* enumerator, | |
| 83 | void const* begin, | ||
| 84 | gate_size_t item_size, | ||
| 85 | gate_size_t item_count) | ||
| 86 | { | ||
| 87 |
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1 | if (item_size == 0) |
| 88 | { | ||
| 89 | ✗ | return NULL; | |
| 90 | } | ||
| 91 | else | ||
| 92 | { | ||
| 93 | 1 | gate_mem_clear(enumerator, sizeof(gate_enumerator_t)); | |
| 94 | 1 | enumerator->is_valid = &gate_enumerator_c_array_is_valid; | |
| 95 | 1 | enumerator->next = &gate_enumerator_c_array_next; | |
| 96 | 1 | enumerator->get = &gate_enumerator_c_array_get; | |
| 97 | |||
| 98 | 1 | enumerator->ptr_origin = begin; | |
| 99 | 1 | enumerator->current_position = (void*)begin; | |
| 100 | 1 | enumerator->end_position = (void*)((char const*)begin + item_size * item_count); | |
| 101 | |||
| 102 | 1 | enumerator->handles[0] = (void*)item_size; | |
| 103 | 1 | enumerator->handles[1] = (void*)item_count; | |
| 104 | 1 | return enumerator; | |
| 105 | } | ||
| 106 | |||
| 107 | } | ||
| 108 |