libs/capy/src/ex/execution_context.cpp
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57.4% Branches (27/47)
libs/capy/src/ex/execution_context.cpp
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|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2025 Vinnie Falco (vinnie dot falco at gmail dot com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/cppalliance/capy | ||
| 8 | // | ||
| 9 | |||
| 10 | #include <boost/capy/ex/execution_context.hpp> | ||
| 11 | #include <boost/capy/ex/recycling_memory_resource.hpp> | ||
| 12 | #include <boost/capy/detail/except.hpp> | ||
| 13 | |||
| 14 | namespace boost { | ||
| 15 | namespace capy { | ||
| 16 | |||
| 17 | 92 | execution_context:: | |
| 18 | 92 | execution_context() | |
| 19 | 92 | : frame_alloc_(get_recycling_memory_resource()) | |
| 20 | { | ||
| 21 | 92 | } | |
| 22 | |||
| 23 | 92 | execution_context:: | |
| 24 | ~execution_context() | ||
| 25 | { | ||
| 26 | 92 | shutdown(); | |
| 27 | 92 | destroy(); | |
| 28 | 92 | } | |
| 29 | |||
| 30 | void | ||
| 31 | 150 | execution_context:: | |
| 32 | shutdown() noexcept | ||
| 33 | { | ||
| 34 |
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150 | if(shutdown_) |
| 35 | 58 | return; | |
| 36 | 92 | shutdown_ = true; | |
| 37 | |||
| 38 | 92 | service* p = head_; | |
| 39 |
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114 | while(p) |
| 40 | { | ||
| 41 | 22 | p->shutdown(); | |
| 42 | 22 | p = p->next_; | |
| 43 | } | ||
| 44 | } | ||
| 45 | |||
| 46 | void | ||
| 47 | 150 | execution_context:: | |
| 48 | destroy() noexcept | ||
| 49 | { | ||
| 50 | 150 | service* p = head_; | |
| 51 | 150 | head_ = nullptr; | |
| 52 |
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172 | while(p) |
| 53 | { | ||
| 54 | 22 | service* next = p->next_; | |
| 55 |
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22 | delete p; |
| 56 | 22 | p = next; | |
| 57 | } | ||
| 58 | 150 | } | |
| 59 | |||
| 60 | execution_context::service* | ||
| 61 | 56 | execution_context:: | |
| 62 | find_impl(detail::type_index ti) const noexcept | ||
| 63 | { | ||
| 64 | 56 | auto p = head_; | |
| 65 |
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56 | while(p) |
| 66 | { | ||
| 67 |
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10 | if(p->t0_ == ti || p->t1_ == ti) |
| 68 | 10 | break; | |
| 69 | ✗ | p = p->next_; | |
| 70 | } | ||
| 71 | 56 | return p; | |
| 72 | } | ||
| 73 | |||
| 74 | execution_context::service& | ||
| 75 | 27 | execution_context:: | |
| 76 | use_service_impl(factory& f) | ||
| 77 | { | ||
| 78 |
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27 | std::unique_lock<std::mutex> lock(mutex_); |
| 79 | |||
| 80 |
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27 | if(auto* p = find_impl(f.t0)) |
| 81 | 6 | return *p; | |
| 82 | |||
| 83 |
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21 | lock.unlock(); |
| 84 | |||
| 85 | // Create the service outside lock, enabling nested calls | ||
| 86 |
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21 | service* sp = f.create(*this); |
| 87 | 21 | sp->t0_ = f.t0; | |
| 88 | 21 | sp->t1_ = f.t1; | |
| 89 | |||
| 90 |
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21 | lock.lock(); |
| 91 | |||
| 92 |
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21 | if(auto* p = find_impl(f.t0)) |
| 93 | { | ||
| 94 | ✗ | delete sp; | |
| 95 | ✗ | return *p; | |
| 96 | } | ||
| 97 | |||
| 98 | 21 | sp->next_ = head_; | |
| 99 | 21 | head_ = sp; | |
| 100 | |||
| 101 | 21 | return *sp; | |
| 102 | 27 | } | |
| 103 | |||
| 104 | execution_context::service& | ||
| 105 | 2 | execution_context:: | |
| 106 | make_service_impl(factory& f) | ||
| 107 | { | ||
| 108 | { | ||
| 109 |
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2 | std::lock_guard<std::mutex> lock(mutex_); |
| 110 |
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2 | if(find_impl(f.t0)) |
| 111 | 1 | detail::throw_invalid_argument(); | |
| 112 |
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1 | if(f.t0 != f.t1 && find_impl(f.t1)) |
| 113 | ✗ | detail::throw_invalid_argument(); | |
| 114 | 2 | } | |
| 115 | |||
| 116 | // Unlocked to allow nested service creation from constructor | ||
| 117 |
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1 | service* p = f.create(*this); |
| 118 | |||
| 119 |
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1 | std::lock_guard<std::mutex> lock(mutex_); |
| 120 |
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1 | if(find_impl(f.t0)) |
| 121 | { | ||
| 122 | ✗ | delete p; | |
| 123 | ✗ | detail::throw_invalid_argument(); | |
| 124 | } | ||
| 125 | |||
| 126 | 1 | p->t0_ = f.t0; | |
| 127 |
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1 | if(f.t0 != f.t1) |
| 128 | { | ||
| 129 | ✗ | if(find_impl(f.t1)) | |
| 130 | { | ||
| 131 | ✗ | delete p; | |
| 132 | ✗ | detail::throw_invalid_argument(); | |
| 133 | } | ||
| 134 | ✗ | p->t1_ = f.t1; | |
| 135 | } | ||
| 136 | else | ||
| 137 | { | ||
| 138 | 1 | p->t1_ = f.t0; | |
| 139 | } | ||
| 140 | |||
| 141 | 1 | p->next_ = head_; | |
| 142 | 1 | head_ = p; | |
| 143 | |||
| 144 | 1 | return *p; | |
| 145 | 1 | } | |
| 146 | |||
| 147 | } // namespace capy | ||
| 148 | } // namespace boost | ||
| 149 |