[64adb03] | 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 | // Keywords.cc -- |
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| 8 | // |
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| 9 | // Author : Thierry Delisle |
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| 10 | // Created On : Mon Mar 13 12:41:22 2017 |
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| 11 | // Last Modified By : |
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| 12 | // Last Modified On : |
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[6b0b624] | 13 | // Update Count : 5 |
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[64adb03] | 14 | // |
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| 15 | |
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| 16 | #include "Concurrency/Keywords.h" |
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| 17 | |
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[bf2438c] | 18 | #include <cassert> // for assert |
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| 19 | #include <string> // for string, operator== |
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| 20 | |
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[bd06384] | 21 | #include "Common/GC.h" // for new_static_root |
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[2065609] | 22 | #include "Common/PassVisitor.h" // for PassVisitor |
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[bf2438c] | 23 | #include "Common/SemanticError.h" // for SemanticError |
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| 24 | #include "Common/utility.h" // for deleteAll, map_range |
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[bff227f] | 25 | #include "CodeGen/OperatorTable.h" // for isConstructor |
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| 26 | #include "InitTweak/InitTweak.h" // for getPointerBase |
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[bf2438c] | 27 | #include "Parser/LinkageSpec.h" // for Cforall |
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| 28 | #include "SynTree/Constant.h" // for Constant |
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| 29 | #include "SynTree/Declaration.h" // for StructDecl, FunctionDecl, ObjectDecl |
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| 30 | #include "SynTree/Expression.h" // for VariableExpr, ConstantExpr, Untype... |
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| 31 | #include "SynTree/Initializer.h" // for SingleInit, ListInit, Initializer ... |
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| 32 | #include "SynTree/Label.h" // for Label |
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| 33 | #include "SynTree/Statement.h" // for CompoundStmt, DeclStmt, ExprStmt |
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| 34 | #include "SynTree/Type.h" // for StructInstType, Type, PointerType |
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| 35 | #include "SynTree/Visitor.h" // for Visitor, acceptAll |
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| 36 | |
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| 37 | class Attribute; |
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[64adb03] | 38 | |
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| 39 | namespace Concurrency { |
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| 40 | //============================================================================================= |
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[2065609] | 41 | // Pass declarations |
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[64adb03] | 42 | //============================================================================================= |
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| 43 | |
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[bcda04c] | 44 | //----------------------------------------------------------------------------- |
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| 45 | //Handles sue type declarations : |
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| 46 | // sue MyType { struct MyType { |
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| 47 | // int data; int data; |
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| 48 | // a_struct_t more_data; a_struct_t more_data; |
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| 49 | // => NewField_t newField; |
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| 50 | // }; }; |
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| 51 | // static inline NewField_t * getter_name( MyType * this ) { return &this->newField; } |
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| 52 | // |
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[2065609] | 53 | class ConcurrentSueKeyword : public WithDeclsToAdd { |
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[bcda04c] | 54 | public: |
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| 55 | |
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[bd4d011] | 56 | ConcurrentSueKeyword( std::string&& type_name, std::string&& field_name, std::string&& getter_name, std::string&& context_error, bool needs_main ) : |
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| 57 | type_name( type_name ), field_name( field_name ), getter_name( getter_name ), context_error( context_error ), needs_main( needs_main ) {} |
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[bcda04c] | 58 | |
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| 59 | virtual ~ConcurrentSueKeyword() {} |
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| 60 | |
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[2065609] | 61 | void postvisit( StructDecl * decl ); |
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[bcda04c] | 62 | |
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| 63 | void handle( StructDecl * ); |
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| 64 | FunctionDecl * forwardDeclare( StructDecl * ); |
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| 65 | ObjectDecl * addField( StructDecl * ); |
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[2f9a722] | 66 | void addRoutines( ObjectDecl *, FunctionDecl * ); |
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[bcda04c] | 67 | |
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| 68 | virtual bool is_target( StructDecl * decl ) = 0; |
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| 69 | |
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| 70 | private: |
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| 71 | const std::string type_name; |
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| 72 | const std::string field_name; |
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| 73 | const std::string getter_name; |
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| 74 | const std::string context_error; |
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[bd4d011] | 75 | bool needs_main; |
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[bcda04c] | 76 | |
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| 77 | StructDecl* type_decl = nullptr; |
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| 78 | }; |
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| 79 | |
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| 80 | |
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[64adb03] | 81 | //----------------------------------------------------------------------------- |
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| 82 | //Handles thread type declarations : |
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| 83 | // thread Mythread { struct MyThread { |
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| 84 | // int data; int data; |
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| 85 | // a_struct_t more_data; a_struct_t more_data; |
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| 86 | // => thread_desc __thrd_d; |
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| 87 | // }; }; |
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| 88 | // static inline thread_desc * get_thread( MyThread * this ) { return &this->__thrd_d; } |
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| 89 | // |
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[bcda04c] | 90 | class ThreadKeyword final : public ConcurrentSueKeyword { |
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[64adb03] | 91 | public: |
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| 92 | |
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[bcda04c] | 93 | ThreadKeyword() : ConcurrentSueKeyword( |
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| 94 | "thread_desc", |
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| 95 | "__thrd", |
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| 96 | "get_thread", |
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[bd4d011] | 97 | "thread keyword requires threads to be in scope, add #include <thread>", |
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| 98 | true |
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[bcda04c] | 99 | ) |
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| 100 | {} |
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| 101 | |
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| 102 | virtual ~ThreadKeyword() {} |
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| 103 | |
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| 104 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_thread(); } |
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| 105 | |
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| 106 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 107 | PassVisitor< ThreadKeyword > impl; |
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| 108 | acceptAll( translationUnit, impl ); |
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[bcda04c] | 109 | } |
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[64adb03] | 110 | }; |
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| 111 | |
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| 112 | //----------------------------------------------------------------------------- |
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| 113 | //Handles coroutine type declarations : |
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| 114 | // coroutine MyCoroutine { struct MyCoroutine { |
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| 115 | // int data; int data; |
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| 116 | // a_struct_t more_data; a_struct_t more_data; |
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| 117 | // => coroutine_desc __cor_d; |
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| 118 | // }; }; |
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| 119 | // static inline coroutine_desc * get_coroutine( MyCoroutine * this ) { return &this->__cor_d; } |
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| 120 | // |
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[bcda04c] | 121 | class CoroutineKeyword final : public ConcurrentSueKeyword { |
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[64adb03] | 122 | public: |
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| 123 | |
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[bcda04c] | 124 | CoroutineKeyword() : ConcurrentSueKeyword( |
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| 125 | "coroutine_desc", |
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| 126 | "__cor", |
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| 127 | "get_coroutine", |
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[bd4d011] | 128 | "coroutine keyword requires coroutines to be in scope, add #include <coroutine>", |
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| 129 | true |
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[bcda04c] | 130 | ) |
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| 131 | {} |
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[b32ada31] | 132 | |
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[bcda04c] | 133 | virtual ~CoroutineKeyword() {} |
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| 134 | |
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| 135 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_coroutine(); } |
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[b32ada31] | 136 | |
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| 137 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 138 | PassVisitor< CoroutineKeyword > impl; |
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| 139 | acceptAll( translationUnit, impl ); |
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[b32ada31] | 140 | } |
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[64adb03] | 141 | }; |
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| 142 | |
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| 143 | //----------------------------------------------------------------------------- |
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| 144 | //Handles monitor type declarations : |
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| 145 | // monitor MyMonitor { struct MyMonitor { |
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| 146 | // int data; int data; |
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| 147 | // a_struct_t more_data; a_struct_t more_data; |
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| 148 | // => monitor_desc __mon_d; |
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| 149 | // }; }; |
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| 150 | // static inline monitor_desc * get_coroutine( MyMonitor * this ) { return &this->__cor_d; } |
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| 151 | // |
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[bcda04c] | 152 | class MonitorKeyword final : public ConcurrentSueKeyword { |
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[64adb03] | 153 | public: |
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| 154 | |
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[bcda04c] | 155 | MonitorKeyword() : ConcurrentSueKeyword( |
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| 156 | "monitor_desc", |
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| 157 | "__mon", |
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| 158 | "get_monitor", |
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[bd4d011] | 159 | "monitor keyword requires monitors to be in scope, add #include <monitor>", |
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| 160 | false |
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[bcda04c] | 161 | ) |
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| 162 | {} |
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| 163 | |
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| 164 | virtual ~MonitorKeyword() {} |
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| 165 | |
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| 166 | virtual bool is_target( StructDecl * decl ) override final { return decl->is_monitor(); } |
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| 167 | |
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| 168 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 169 | PassVisitor< MonitorKeyword > impl; |
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| 170 | acceptAll( translationUnit, impl ); |
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[bcda04c] | 171 | } |
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[64adb03] | 172 | }; |
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| 173 | |
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| 174 | //----------------------------------------------------------------------------- |
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| 175 | //Handles mutex routines definitions : |
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| 176 | // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) { |
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[9243cc91] | 177 | // monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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[64adb03] | 178 | // monitor_guard_t __guard = { __monitors, 2 }; |
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| 179 | // /*Some code*/ => /*Some code*/ |
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| 180 | // } } |
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| 181 | // |
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[2065609] | 182 | class MutexKeyword final { |
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[64adb03] | 183 | public: |
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| 184 | |
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[2065609] | 185 | void postvisit( FunctionDecl * decl ); |
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| 186 | void postvisit( StructDecl * decl ); |
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[64adb03] | 187 | |
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| 188 | std::list<DeclarationWithType*> findMutexArgs( FunctionDecl* ); |
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| 189 | void validate( DeclarationWithType * ); |
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[549c006] | 190 | void addDtorStatments( FunctionDecl* func, CompoundStmt *, const std::list<DeclarationWithType * > &); |
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[97e3296] | 191 | void addStatments( FunctionDecl* func, CompoundStmt *, const std::list<DeclarationWithType * > &); |
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[64adb03] | 192 | |
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| 193 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 194 | PassVisitor< MutexKeyword > impl; |
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[64adb03] | 195 | acceptAll( translationUnit, impl ); |
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| 196 | } |
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[9243cc91] | 197 | |
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| 198 | private: |
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| 199 | StructDecl* monitor_decl = nullptr; |
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[ef42b143] | 200 | StructDecl* guard_decl = nullptr; |
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[549c006] | 201 | StructDecl* dtor_guard_decl = nullptr; |
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[97e3296] | 202 | |
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[8d7bef2] | 203 | static Type* generic_func; |
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[64adb03] | 204 | }; |
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| 205 | |
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[bd06384] | 206 | Type* MutexKeyword::generic_func = new_static_root<FunctionType>( noQualifiers, true ); |
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[97e3296] | 207 | |
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[bd4d011] | 208 | //----------------------------------------------------------------------------- |
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| 209 | //Handles mutex routines definitions : |
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| 210 | // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) { |
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| 211 | // monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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| 212 | // monitor_guard_t __guard = { __monitors, 2 }; |
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| 213 | // /*Some code*/ => /*Some code*/ |
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| 214 | // } } |
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| 215 | // |
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[2065609] | 216 | class ThreadStarter final { |
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[bd4d011] | 217 | public: |
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| 218 | |
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[2065609] | 219 | void postvisit( FunctionDecl * decl ); |
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[549c006] | 220 | void previsit ( StructDecl * decl ); |
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[bd4d011] | 221 | |
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| 222 | void addStartStatement( FunctionDecl * decl, DeclarationWithType * param ); |
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| 223 | |
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| 224 | static void implement( std::list< Declaration * > & translationUnit ) { |
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[2065609] | 225 | PassVisitor< ThreadStarter > impl; |
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[bd4d011] | 226 | acceptAll( translationUnit, impl ); |
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| 227 | } |
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[549c006] | 228 | |
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| 229 | private : |
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| 230 | bool thread_ctor_seen = false; |
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| 231 | StructDecl * thread_decl = nullptr; |
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[bd4d011] | 232 | }; |
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| 233 | |
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[64adb03] | 234 | //============================================================================================= |
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| 235 | // General entry routine |
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| 236 | //============================================================================================= |
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| 237 | void applyKeywords( std::list< Declaration * > & translationUnit ) { |
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| 238 | ThreadKeyword ::implement( translationUnit ); |
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| 239 | CoroutineKeyword ::implement( translationUnit ); |
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| 240 | MonitorKeyword ::implement( translationUnit ); |
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[bcda04c] | 241 | } |
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| 242 | |
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| 243 | void implementMutexFuncs( std::list< Declaration * > & translationUnit ) { |
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[64adb03] | 244 | MutexKeyword ::implement( translationUnit ); |
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| 245 | } |
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| 246 | |
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[bcda04c] | 247 | void implementThreadStarter( std::list< Declaration * > & translationUnit ) { |
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[bd4d011] | 248 | ThreadStarter ::implement( translationUnit ); |
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[bcda04c] | 249 | } |
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| 250 | |
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[b32ada31] | 251 | //============================================================================================= |
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[bcda04c] | 252 | // Generic keyword implementation |
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[b32ada31] | 253 | //============================================================================================= |
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[2db79e5] | 254 | void fixupGenerics(FunctionType * func, StructDecl * decl) { |
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| 255 | cloneAll(decl->parameters, func->forall); |
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| 256 | for ( TypeDecl * td : func->forall ) { |
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| 257 | strict_dynamic_cast<StructInstType*>( |
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| 258 | func->parameters.front()->get_type()->stripReferences() |
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| 259 | )->parameters.push_back( |
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| 260 | new TypeExpr( new TypeInstType( noQualifiers, td->name, td ) ) |
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| 261 | ); |
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| 262 | } |
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| 263 | } |
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| 264 | |
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[2065609] | 265 | void ConcurrentSueKeyword::postvisit(StructDecl * decl) { |
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[9f5ecf5] | 266 | if( decl->name == type_name && decl->body ) { |
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[bcda04c] | 267 | assert( !type_decl ); |
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| 268 | type_decl = decl; |
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[b32ada31] | 269 | } |
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[bcda04c] | 270 | else if ( is_target(decl) ) { |
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[b32ada31] | 271 | handle( decl ); |
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| 272 | } |
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| 273 | } |
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| 274 | |
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[bcda04c] | 275 | void ConcurrentSueKeyword::handle( StructDecl * decl ) { |
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[9f5ecf5] | 276 | if( ! decl->body ) return; |
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[b32ada31] | 277 | |
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[a16764a6] | 278 | if( !type_decl ) SemanticError( decl, context_error ); |
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[b32ada31] | 279 | |
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[bcda04c] | 280 | FunctionDecl * func = forwardDeclare( decl ); |
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| 281 | ObjectDecl * field = addField( decl ); |
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[2f9a722] | 282 | addRoutines( field, func ); |
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[b32ada31] | 283 | } |
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| 284 | |
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[bcda04c] | 285 | FunctionDecl * ConcurrentSueKeyword::forwardDeclare( StructDecl * decl ) { |
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| 286 | |
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| 287 | StructDecl * forward = decl->clone(); |
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| 288 | forward->set_body( false ); |
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| 289 | forward->get_members().clear(); |
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| 290 | |
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[bd4d011] | 291 | FunctionType * get_type = new FunctionType( noQualifiers, false ); |
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[bcda04c] | 292 | ObjectDecl * this_decl = new ObjectDecl( |
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| 293 | "this", |
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[ba3706f] | 294 | noStorageClasses, |
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[b32ada31] | 295 | LinkageSpec::Cforall, |
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| 296 | nullptr, |
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[83a071f9] | 297 | new ReferenceType( |
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[b32ada31] | 298 | noQualifiers, |
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[bcda04c] | 299 | new StructInstType( |
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| 300 | noQualifiers, |
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| 301 | decl |
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| 302 | ) |
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[b32ada31] | 303 | ), |
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| 304 | nullptr |
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| 305 | ); |
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| 306 | |
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[2db79e5] | 307 | get_type->get_parameters().push_back( this_decl->clone() ); |
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[bd4d011] | 308 | get_type->get_returnVals().push_back( |
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[e04b636] | 309 | new ObjectDecl( |
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| 310 | "ret", |
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[ba3706f] | 311 | noStorageClasses, |
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[e04b636] | 312 | LinkageSpec::Cforall, |
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| 313 | nullptr, |
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| 314 | new PointerType( |
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| 315 | noQualifiers, |
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| 316 | new StructInstType( |
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| 317 | noQualifiers, |
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[bcda04c] | 318 | type_decl |
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[e04b636] | 319 | ) |
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| 320 | ), |
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| 321 | nullptr |
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| 322 | ) |
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| 323 | ); |
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[2db79e5] | 324 | fixupGenerics(get_type, decl); |
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[b32ada31] | 325 | |
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[bcda04c] | 326 | FunctionDecl * get_decl = new FunctionDecl( |
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| 327 | getter_name, |
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| 328 | Type::Static, |
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| 329 | LinkageSpec::Cforall, |
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[bd4d011] | 330 | get_type, |
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[bcda04c] | 331 | nullptr, |
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| 332 | noAttributes, |
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| 333 | Type::Inline |
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| 334 | ); |
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| 335 | |
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[bd4d011] | 336 | FunctionDecl * main_decl = nullptr; |
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| 337 | |
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| 338 | if( needs_main ) { |
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| 339 | FunctionType * main_type = new FunctionType( noQualifiers, false ); |
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[bf2438c] | 340 | |
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[bd4d011] | 341 | main_type->get_parameters().push_back( this_decl->clone() ); |
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| 342 | |
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| 343 | main_decl = new FunctionDecl( |
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| 344 | "main", |
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[ba3706f] | 345 | noStorageClasses, |
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[bd4d011] | 346 | LinkageSpec::Cforall, |
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| 347 | main_type, |
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| 348 | nullptr |
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| 349 | ); |
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[2db79e5] | 350 | fixupGenerics(main_type, decl); |
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[bd4d011] | 351 | } |
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| 352 | |
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[2065609] | 353 | declsToAddBefore.push_back( forward ); |
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| 354 | if( needs_main ) declsToAddBefore.push_back( main_decl ); |
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| 355 | declsToAddBefore.push_back( get_decl ); |
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[bcda04c] | 356 | |
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| 357 | return get_decl; |
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| 358 | } |
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| 359 | |
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| 360 | ObjectDecl * ConcurrentSueKeyword::addField( StructDecl * decl ) { |
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| 361 | ObjectDecl * field = new ObjectDecl( |
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| 362 | field_name, |
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[ba3706f] | 363 | noStorageClasses, |
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[bcda04c] | 364 | LinkageSpec::Cforall, |
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| 365 | nullptr, |
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| 366 | new StructInstType( |
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| 367 | noQualifiers, |
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| 368 | type_decl |
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| 369 | ), |
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| 370 | nullptr |
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| 371 | ); |
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| 372 | |
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| 373 | decl->get_members().push_back( field ); |
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| 374 | |
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| 375 | return field; |
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| 376 | } |
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| 377 | |
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[2f9a722] | 378 | void ConcurrentSueKeyword::addRoutines( ObjectDecl * field, FunctionDecl * func ) { |
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[ba3706f] | 379 | CompoundStmt * statement = new CompoundStmt(); |
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[bf2438c] | 380 | statement->push_back( |
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[b32ada31] | 381 | new ReturnStmt( |
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[e04b636] | 382 | new AddressExpr( |
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[bcda04c] | 383 | new MemberExpr( |
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| 384 | field, |
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[2db79e5] | 385 | new CastExpr( |
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| 386 | new VariableExpr( func->get_functionType()->get_parameters().front() ), |
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| 387 | func->get_functionType()->get_parameters().front()->get_type()->stripReferences()->clone() |
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| 388 | ) |
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[e04b636] | 389 | ) |
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[b32ada31] | 390 | ) |
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| 391 | ) |
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| 392 | ); |
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| 393 | |
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[bcda04c] | 394 | FunctionDecl * get_decl = func->clone(); |
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| 395 | |
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| 396 | get_decl->set_statements( statement ); |
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[e04b636] | 397 | |
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| 398 | declsToAddAfter.push_back( get_decl ); |
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| 399 | |
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[bcda04c] | 400 | // get_decl->fixUniqueId(); |
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[b32ada31] | 401 | } |
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| 402 | |
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[64adb03] | 403 | //============================================================================================= |
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| 404 | // Mutex keyword implementation |
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| 405 | //============================================================================================= |
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[97e3296] | 406 | |
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[2065609] | 407 | void MutexKeyword::postvisit(FunctionDecl* decl) { |
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[102a58b] | 408 | |
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[64adb03] | 409 | std::list<DeclarationWithType*> mutexArgs = findMutexArgs( decl ); |
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| 410 | if( mutexArgs.empty() ) return; |
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| 411 | |
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[a16764a6] | 412 | if( CodeGen::isConstructor(decl->name) ) SemanticError( decl, "constructors cannot have mutex parameters" ); |
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[549c006] | 413 | |
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| 414 | bool isDtor = CodeGen::isDestructor( decl->name ); |
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| 415 | |
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[a16764a6] | 416 | if( isDtor && mutexArgs.size() != 1 ) SemanticError( decl, "destructors can only have 1 mutex argument" ); |
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[549c006] | 417 | |
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[64adb03] | 418 | for(auto arg : mutexArgs) { |
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| 419 | validate( arg ); |
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| 420 | } |
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| 421 | |
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| 422 | CompoundStmt* body = decl->get_statements(); |
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| 423 | if( ! body ) return; |
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| 424 | |
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[a16764a6] | 425 | if( !monitor_decl || !guard_decl || !dtor_guard_decl ) |
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| 426 | SemanticError( decl, "mutex keyword requires monitors to be in scope, add #include <monitor>" ); |
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[b32ada31] | 427 | |
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[549c006] | 428 | if( isDtor ) { |
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| 429 | addDtorStatments( decl, body, mutexArgs ); |
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| 430 | } |
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| 431 | else { |
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| 432 | addStatments( decl, body, mutexArgs ); |
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| 433 | } |
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[64adb03] | 434 | } |
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| 435 | |
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[2065609] | 436 | void MutexKeyword::postvisit(StructDecl* decl) { |
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[102a58b] | 437 | |
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[9f5ecf5] | 438 | if( decl->name == "monitor_desc" ) { |
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[9243cc91] | 439 | assert( !monitor_decl ); |
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| 440 | monitor_decl = decl; |
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| 441 | } |
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[9f5ecf5] | 442 | else if( decl->name == "monitor_guard_t" ) { |
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[ef42b143] | 443 | assert( !guard_decl ); |
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| 444 | guard_decl = decl; |
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| 445 | } |
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[549c006] | 446 | else if( decl->name == "monitor_dtor_guard_t" ) { |
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| 447 | assert( !dtor_guard_decl ); |
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| 448 | dtor_guard_decl = decl; |
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| 449 | } |
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[9243cc91] | 450 | } |
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| 451 | |
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[64adb03] | 452 | std::list<DeclarationWithType*> MutexKeyword::findMutexArgs( FunctionDecl* decl ) { |
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| 453 | std::list<DeclarationWithType*> mutexArgs; |
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| 454 | |
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| 455 | for( auto arg : decl->get_functionType()->get_parameters()) { |
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| 456 | //Find mutex arguments |
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| 457 | Type* ty = arg->get_type(); |
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[615a096] | 458 | if( ! ty->get_mutex() ) continue; |
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[64adb03] | 459 | |
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| 460 | //Append it to the list |
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| 461 | mutexArgs.push_back( arg ); |
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| 462 | } |
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| 463 | |
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| 464 | return mutexArgs; |
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| 465 | } |
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| 466 | |
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| 467 | void MutexKeyword::validate( DeclarationWithType * arg ) { |
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| 468 | Type* ty = arg->get_type(); |
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| 469 | |
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| 470 | //Makes sure it's not a copy |
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[870d1f0] | 471 | ReferenceType* rty = dynamic_cast< ReferenceType * >( ty ); |
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[a16764a6] | 472 | if( ! rty ) SemanticError( arg, "Mutex argument must be of reference type " ); |
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[64adb03] | 473 | |
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| 474 | //Make sure the we are pointing directly to a type |
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[83a071f9] | 475 | Type* base = rty->get_base(); |
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[a16764a6] | 476 | if( dynamic_cast< ReferenceType * >( base ) ) SemanticError( arg, "Mutex argument have exactly one level of indirection " ); |
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| 477 | if( dynamic_cast< PointerType * >( base ) ) SemanticError( arg, "Mutex argument have exactly one level of indirection " ); |
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[64adb03] | 478 | |
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| 479 | //Make sure that typed isn't mutex |
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[a16764a6] | 480 | if( base->get_mutex() ) SemanticError( arg, "mutex keyword may only appear once per argument " ); |
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[64adb03] | 481 | } |
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| 482 | |
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[549c006] | 483 | void MutexKeyword::addDtorStatments( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) { |
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| 484 | Type * arg_type = args.front()->get_type()->clone(); |
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| 485 | arg_type->set_mutex( false ); |
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| 486 | |
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| 487 | ObjectDecl * monitors = new ObjectDecl( |
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| 488 | "__monitor", |
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[ba3706f] | 489 | noStorageClasses, |
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[549c006] | 490 | LinkageSpec::Cforall, |
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| 491 | nullptr, |
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| 492 | new PointerType( |
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| 493 | noQualifiers, |
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| 494 | new StructInstType( |
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| 495 | noQualifiers, |
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| 496 | monitor_decl |
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| 497 | ) |
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| 498 | ), |
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| 499 | new SingleInit( new UntypedExpr( |
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| 500 | new NameExpr( "get_monitor" ), |
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| 501 | { new CastExpr( new VariableExpr( args.front() ), arg_type ) } |
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| 502 | )) |
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| 503 | ); |
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| 504 | |
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| 505 | assert(generic_func); |
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| 506 | |
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| 507 | //in reverse order : |
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| 508 | // monitor_guard_t __guard = { __monitors, #, func }; |
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| 509 | body->push_front( |
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[ba3706f] | 510 | new DeclStmt( new ObjectDecl( |
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[549c006] | 511 | "__guard", |
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[ba3706f] | 512 | noStorageClasses, |
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[549c006] | 513 | LinkageSpec::Cforall, |
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| 514 | nullptr, |
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| 515 | new StructInstType( |
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| 516 | noQualifiers, |
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| 517 | dtor_guard_decl |
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| 518 | ), |
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| 519 | new ListInit( |
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| 520 | { |
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| 521 | new SingleInit( new AddressExpr( new VariableExpr( monitors ) ) ), |
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| 522 | new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone() ) ) |
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| 523 | }, |
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| 524 | noDesignators, |
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| 525 | true |
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| 526 | ) |
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| 527 | )) |
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| 528 | ); |
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| 529 | |
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| 530 | //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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[ba3706f] | 531 | body->push_front( new DeclStmt( monitors) ); |
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[549c006] | 532 | } |
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| 533 | |
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[97e3296] | 534 | void MutexKeyword::addStatments( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) { |
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[9243cc91] | 535 | ObjectDecl * monitors = new ObjectDecl( |
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| 536 | "__monitors", |
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[ba3706f] | 537 | noStorageClasses, |
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[9243cc91] | 538 | LinkageSpec::Cforall, |
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| 539 | nullptr, |
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| 540 | new ArrayType( |
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| 541 | noQualifiers, |
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| 542 | new PointerType( |
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| 543 | noQualifiers, |
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| 544 | new StructInstType( |
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| 545 | noQualifiers, |
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| 546 | monitor_decl |
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| 547 | ) |
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| 548 | ), |
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| 549 | new ConstantExpr( Constant::from_ulong( args.size() ) ), |
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| 550 | false, |
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| 551 | false |
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| 552 | ), |
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| 553 | new ListInit( |
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[bd41764] | 554 | map_range < std::list<Initializer*> > ( args, [](DeclarationWithType * var ){ |
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[cb0e6de] | 555 | Type * type = var->get_type()->clone(); |
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| 556 | type->set_mutex( false ); |
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[9243cc91] | 557 | return new SingleInit( new UntypedExpr( |
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| 558 | new NameExpr( "get_monitor" ), |
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[cb0e6de] | 559 | { new CastExpr( new VariableExpr( var ), type ) } |
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[9243cc91] | 560 | ) ); |
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| 561 | }) |
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| 562 | ) |
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| 563 | ); |
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| 564 | |
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[97e3296] | 565 | assert(generic_func); |
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| 566 | |
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[64adb03] | 567 | //in reverse order : |
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[97e3296] | 568 | // monitor_guard_t __guard = { __monitors, #, func }; |
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[64adb03] | 569 | body->push_front( |
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[ba3706f] | 570 | new DeclStmt( new ObjectDecl( |
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[64adb03] | 571 | "__guard", |
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[ba3706f] | 572 | noStorageClasses, |
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[64adb03] | 573 | LinkageSpec::Cforall, |
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| 574 | nullptr, |
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| 575 | new StructInstType( |
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| 576 | noQualifiers, |
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[ef42b143] | 577 | guard_decl |
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[64adb03] | 578 | ), |
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| 579 | new ListInit( |
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| 580 | { |
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[9243cc91] | 581 | new SingleInit( new VariableExpr( monitors ) ), |
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[97e3296] | 582 | new SingleInit( new ConstantExpr( Constant::from_ulong( args.size() ) ) ), |
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| 583 | new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone() ) ) |
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[ef42b143] | 584 | }, |
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| 585 | noDesignators, |
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| 586 | true |
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[64adb03] | 587 | ) |
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| 588 | )) |
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| 589 | ); |
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| 590 | |
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[ef42b143] | 591 | //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) }; |
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[ba3706f] | 592 | body->push_front( new DeclStmt( monitors) ); |
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[64adb03] | 593 | } |
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[bd4d011] | 594 | |
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| 595 | //============================================================================================= |
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| 596 | // General entry routine |
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| 597 | //============================================================================================= |
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[549c006] | 598 | void ThreadStarter::previsit( StructDecl * decl ) { |
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| 599 | if( decl->name == "thread_desc" && decl->body ) { |
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| 600 | assert( !thread_decl ); |
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| 601 | thread_decl = decl; |
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| 602 | } |
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| 603 | } |
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| 604 | |
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[2065609] | 605 | void ThreadStarter::postvisit(FunctionDecl * decl) { |
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[9f5ecf5] | 606 | if( ! CodeGen::isConstructor(decl->name) ) return; |
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[bd4d011] | 607 | |
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[549c006] | 608 | Type * typeof_this = InitTweak::getTypeofThis(decl->type); |
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| 609 | StructInstType * ctored_type = dynamic_cast< StructInstType * >( typeof_this ); |
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| 610 | if( ctored_type && ctored_type->baseStruct == thread_decl ) { |
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| 611 | thread_ctor_seen = true; |
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| 612 | } |
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| 613 | |
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[bd4d011] | 614 | DeclarationWithType * param = decl->get_functionType()->get_parameters().front(); |
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[ce8c12f] | 615 | auto type = dynamic_cast< StructInstType * >( InitTweak::getPointerBase( param->get_type() ) ); |
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[bd4d011] | 616 | if( type && type->get_baseStruct()->is_thread() ) { |
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[549c006] | 617 | if( !thread_decl || !thread_ctor_seen ) { |
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[a16764a6] | 618 | SemanticError( type->get_baseStruct()->location, "thread keyword requires threads to be in scope, add #include <thread>"); |
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[549c006] | 619 | } |
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| 620 | |
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[bd4d011] | 621 | addStartStatement( decl, param ); |
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| 622 | } |
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| 623 | } |
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| 624 | |
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| 625 | void ThreadStarter::addStartStatement( FunctionDecl * decl, DeclarationWithType * param ) { |
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| 626 | CompoundStmt * stmt = decl->get_statements(); |
---|
| 627 | |
---|
| 628 | if( ! stmt ) return; |
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| 629 | |
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[bf2438c] | 630 | stmt->push_back( |
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[bd4d011] | 631 | new ExprStmt( |
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| 632 | new UntypedExpr( |
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| 633 | new NameExpr( "__thrd_start" ), |
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| 634 | { new VariableExpr( param ) } |
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| 635 | ) |
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| 636 | ) |
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| 637 | ); |
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| 638 | } |
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[68fe077a] | 639 | }; |
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[6b0b624] | 640 | |
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| 641 | // Local Variables: // |
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| 642 | // mode: c // |
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| 643 | // tab-width: 4 // |
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| 644 | // End: // |
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