1 | #include "gcpointers.h" |
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2 | |
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3 | #include "gc.h" |
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4 | |
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5 | void register_ptr(gcpointer_t* this) |
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6 | { |
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7 | if(gcpointer_null(this)) return; |
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8 | |
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9 | _Bool managed = gc_is_managed(this); |
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10 | |
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11 | if(managed) |
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12 | { |
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13 | gc_object_header* obj = gc_get_object_for_ref(this); |
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14 | check(obj); |
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15 | check(gc_obj_is_valide(obj)); |
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16 | check(gc_is_managed(this) == gc_is_managed(obj->type_chain) || obj->type_chain == NULL); |
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17 | m_next = obj->type_chain; |
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18 | obj->type_chain = this; |
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19 | check(obj->is_valide()); |
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20 | } |
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21 | else |
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22 | { |
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23 | gc_object_header* obj = gc_get_object_ptr(this->ptr); |
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24 | check(obj); |
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25 | check(gc_obj_is_valide(obj)); |
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26 | check(gc_is_managed(this) == gc_is_managed(obj->root_chain) || obj->root_chain == NULL); |
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27 | m_next = obj->root_chain; |
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28 | obj->root_chain = this; |
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29 | check(gc_obj_is_valide(obj)); |
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30 | } |
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31 | } |
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32 | |
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33 | void unregister_ptr(gcpointer_t* this) |
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34 | { |
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35 | if(gcpointer_null(this)) return; |
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36 | |
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37 | gcpointer_t** prev_next_ptr = gc_find_previous_ref(this); |
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38 | check((*prev_next_ptr) == this); |
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39 | |
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40 | (*prev_next_ptr) = this->next; |
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41 | } |
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42 | |
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43 | void gcpointer_ctor(gcpointer_t* this) |
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44 | { |
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45 | this->ptr = NULL; |
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46 | this->next = NULL; |
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47 | } |
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48 | |
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49 | void gcpointer_ctor(gcpointer_t* this, void* address) |
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50 | { |
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51 | this->ptr = address; |
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52 | this->next = NULL; |
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53 | |
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54 | register_ptr(this); |
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55 | } |
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56 | |
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57 | void gcpointer_ctor(gcpointer_t* this, gcpointer_t* other) |
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58 | { |
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59 | this->ptr = other->ptr; |
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60 | this->next = NULL; |
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61 | |
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62 | register_ptr(this); |
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63 | } |
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64 | |
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65 | void gcpointer_dtor(gcpointer_t* this) |
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66 | { |
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67 | unregister_ptr(this); |
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68 | } |
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69 | |
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70 | gcpointer_t* gcpointer_assign(gcpointer_t* this, gcpointer_t* rhs) |
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71 | { |
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72 | if(this != rhs && this->ptr != rhs->ptr) |
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73 | { |
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74 | unregister_ptr(this); |
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75 | |
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76 | this->ptr = rhs->ptr; |
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77 | |
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78 | register_ptr(this); |
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79 | } |
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80 | |
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81 | return this; |
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82 | } |
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83 | |
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84 | //Logical operators |
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85 | int gcpointer_equal(gcpointer_t* this, gcpointer_t* rhs) |
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86 | { |
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87 | return this->ptr == rhs->ptr; |
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88 | } |
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89 | |
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90 | int gcpointer_not_equal(gcpointer_t* this, gcpointer_t* rhs) |
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91 | { |
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92 | return this->ptr != rhs->ptr; |
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93 | } |
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94 | |
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95 | int gcpointer_null(gcpointer_t* this) |
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96 | { |
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97 | return this->ptr == NULL; |
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98 | } |
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