1 | #include "object_header.h" |
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2 | |
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3 | #include <stdint.h> |
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4 | |
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5 | #include "globals.h" |
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6 | #include "gcpointers.h" |
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7 | |
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8 | void ctor(gc_object_header* const this, size_t inSize) |
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9 | { |
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10 | #if _DEBUG |
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11 | this->canary_start = CANARY_VALUE; |
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12 | #endif |
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13 | |
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14 | this->size = inSize; |
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15 | this->root_chain = NULL; |
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16 | this->type_chain = NULL; |
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17 | this->forward = NULL; |
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18 | this->is_forwarded = false; |
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19 | |
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20 | #if _DEBUG |
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21 | this->canary_end = CANARY_VALUE; |
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22 | #endif |
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23 | } |
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24 | |
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25 | void copy_ctor(gc_object_header* const this, const gc_object_header* const other) |
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26 | { |
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27 | #if _DEBUG |
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28 | this->canary_start = CANARY_VALUE; |
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29 | #endif |
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30 | |
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31 | this->size = other->size; |
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32 | this->root_chain = other->root_chain; |
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33 | this->type_chain = NULL; |
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34 | this->forward = NULL; |
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35 | this->is_forwarded = false; |
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36 | |
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37 | #if _DEBUG |
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38 | this->canary_end = CANARY_VALUE; |
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39 | #endif |
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40 | |
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41 | gcpointer_t* root = this->root_chain; |
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42 | while(root) |
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43 | { |
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44 | check(get_object_ptr(root->ptr) == other); |
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45 | root->ptr = ((intptr_t)this) + sizeof(gc_object_header); |
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46 | |
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47 | check(get_object_ptr(root->ptr) == this); |
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48 | root = root->next; |
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49 | } |
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50 | |
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51 | gcpointer_t* type = other->type_chain; |
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52 | |
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53 | while(type) |
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54 | { |
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55 | check((intptr_t)type < (intptr_t)((intptr_t)other + other->size)); |
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56 | |
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57 | size_t offset = (intptr_t)type - (intptr_t)other; |
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58 | check(offset < size); |
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59 | |
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60 | gcpointer_t* member_ptr = (gcpointer_t*)( (intptr_t)this + offset ); |
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61 | |
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62 | if(!this->type_chain) this->type_chain = member_ptr; |
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63 | |
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64 | size_t next_offset = type->next ? (intptr_t)type->next - (intptr_t)other : 0; |
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65 | check(next_offset < size); |
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66 | |
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67 | gcpointer_t* next_ptr = type->next ? (gcpointer_t*)((intptr_t)this + next_offset) : NULL; |
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68 | |
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69 | member_ptr->ptr = type->ptr; |
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70 | member_ptr->next = next_ptr; |
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71 | |
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72 | type = type->next; |
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73 | } |
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74 | |
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75 | check(is_valide(this)); |
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76 | } |
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77 | |
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78 | #if _DEBUG |
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79 | bool is_valide(const gc_object_header* const this) |
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80 | { |
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81 | check(this->canary_start == CANARY_VALUE); |
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82 | check(this->canary_end == CANARY_VALUE); |
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83 | |
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84 | check(this->is_forwarded == (this->forward != nullptr)); |
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85 | |
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86 | check(this->size < POOL_SIZE_BYTES); |
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87 | |
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88 | gcpointer_t* root = this->root_chain; |
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89 | while(root) |
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90 | { |
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91 | check(get_object_ptr(root->ptr) == this); |
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92 | |
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93 | root = root->next; |
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94 | } |
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95 | |
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96 | gcpointer_t* type = type_chain; |
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97 | while(type) |
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98 | { |
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99 | check((intptr_t)type > (intptr_t)this); |
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100 | check((intptr_t)type < (intptr_t)((intptr_t)this + size)); |
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101 | |
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102 | type = type->next; |
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103 | } |
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104 | |
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105 | return true; |
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106 | } |
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107 | #endif |
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