| 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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| 7 | // memory.hfa -- Memory Management Tools for CFA |
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| 8 | // |
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| 9 | // Author : Andrew Beach |
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| 10 | // Created On : Tue Jun 2 16:48:00 2020 |
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| 11 | // Last Modified By : Andrew Beach |
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| 12 | // Last Modified On : Tue Jun 3 12:29:00 2020 |
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| 13 | // Update Count : 0 |
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| 14 | // |
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| 15 | |
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| 16 | #pragma once |
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| 17 | |
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| 18 | // Internal data object. |
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| 19 | forall(T & | sized(T)) { |
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| 20 | struct counter_data { |
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| 21 | unsigned int counter; |
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| 22 | T object; |
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| 23 | }; |
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| 24 | |
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| 25 | forall(Args... | { void ?{}(T &, Args); }) |
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| 26 | void ?{}(counter_data(T) & this, Args args); |
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| 27 | |
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| 28 | forall( | { void ^?{}(T &); }) |
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| 29 | void ^?{}(counter_data(T) & this); |
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| 30 | } |
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| 31 | |
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| 32 | // This is one of many pointers keeping this alive. |
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| 33 | forall(T & | sized(T)) { |
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| 34 | struct counter_ptr { |
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| 35 | counter_data(T) * data; |
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| 36 | }; |
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| 37 | |
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| 38 | void ?{}(counter_ptr(T) & this); |
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| 39 | void ?{}(counter_ptr(T) & this, zero_t); |
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| 40 | forall( | { void ^?{}(T &); }) |
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| 41 | void ?{}(counter_ptr(T) & this, counter_ptr(T) that); |
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| 42 | forall(Args... | { void ?{}(T&, Args); }) |
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| 43 | void ?{}(counter_ptr(T) & this, Args args); |
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| 44 | |
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| 45 | forall( | { void ^?{}(T &); }) |
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| 46 | void ^?{}(counter_ptr(T) & this); |
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| 47 | |
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| 48 | T & *?(counter_ptr(T) & this); |
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| 49 | |
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| 50 | forall( | { void ^?{}(T &); }) |
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| 51 | void ?=?(counter_ptr(T) & this, counter_ptr(T) that); |
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| 52 | forall( | { void ^?{}(T &); }) |
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| 53 | void ?=?(counter_ptr(T) & this, zero_t); |
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| 54 | |
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| 55 | int ?==?(counter_ptr(T) const & this, counter_ptr(T) const & that); |
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| 56 | int ?!=?(counter_ptr(T) const & this, counter_ptr(T) const & that); |
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| 57 | int ?==?(counter_ptr(T) const & this, zero_t); |
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| 58 | int ?!=?(counter_ptr(T) const & this, zero_t); |
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| 59 | } |
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| 60 | |
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| 61 | // This is the only pointer that keeps this alive. |
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| 62 | forall(T &) { |
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| 63 | struct unique_ptr { |
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| 64 | T * data; |
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| 65 | }; |
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| 66 | |
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| 67 | void ?{}(unique_ptr(T) & this); |
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| 68 | void ?{}(unique_ptr(T) & this, zero_t); |
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| 69 | void ?{}(unique_ptr(T) & this, unique_ptr(T) that) = void; |
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| 70 | forall( | sized(T), Args... | { void ?{}(T &, Args); }) |
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| 71 | void ?{}(unique_ptr(T) & this, Args args); |
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| 72 | |
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| 73 | forall( | { void ^?{}(T &); }) |
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| 74 | void ^?{}(unique_ptr(T) & this); |
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| 75 | |
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| 76 | T & *?(unique_ptr(T) & this); |
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| 77 | |
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| 78 | void ?=?(unique_ptr(T) & this, unique_ptr(T) that) = void; |
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| 79 | forall( | { void ^?{}(T &); }) |
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| 80 | void ?=?(unique_ptr(T) & this, zero_t); |
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| 81 | |
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| 82 | forall( | { void ^?{}(T &); }) |
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| 83 | void move(unique_ptr(T) & this, unique_ptr(T) & that); |
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| 84 | |
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| 85 | int ?==?(unique_ptr(T) const & this, unique_ptr(T) const & that); |
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| 86 | int ?!=?(unique_ptr(T) const & this, unique_ptr(T) const & that); |
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| 87 | int ?==?(unique_ptr(T) const & this, zero_t); |
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| 88 | int ?!=?(unique_ptr(T) const & this, zero_t); |
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| 89 | } |
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