[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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[2065609] | 21 | #include "Common/PassVisitor.h" // for PassVisitor
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[bf2438c] | 22 | #include "Common/SemanticError.h" // for SemanticError
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| 23 | #include "Common/utility.h" // for deleteAll, map_range
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[bff227f] | 24 | #include "CodeGen/OperatorTable.h" // for isConstructor
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| 25 | #include "InitTweak/InitTweak.h" // for getPointerBase
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[bf2438c] | 26 | #include "Parser/LinkageSpec.h" // for Cforall
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| 27 | #include "SymTab/AddVisit.h" // for acceptAndAdd
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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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| 203 | static std::unique_ptr< Type > generic_func;
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[64adb03] | 204 | };
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| 205 |
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[97e3296] | 206 | std::unique_ptr< Type > MutexKeyword::generic_func = std::unique_ptr< Type >(
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| 207 | new FunctionType(
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| 208 | noQualifiers,
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| 209 | true
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| 210 | )
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| 211 | );
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| 212 |
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[bd4d011] | 213 | //-----------------------------------------------------------------------------
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| 214 | //Handles mutex routines definitions :
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| 215 | // void foo( A * mutex a, B * mutex b, int i ) { void foo( A * a, B * b, int i ) {
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| 216 | // monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
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| 217 | // monitor_guard_t __guard = { __monitors, 2 };
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| 218 | // /*Some code*/ => /*Some code*/
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| 219 | // } }
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| 220 | //
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[2065609] | 221 | class ThreadStarter final {
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[bd4d011] | 222 | public:
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| 223 |
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[2065609] | 224 | void postvisit( FunctionDecl * decl );
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[549c006] | 225 | void previsit ( StructDecl * decl );
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[bd4d011] | 226 |
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| 227 | void addStartStatement( FunctionDecl * decl, DeclarationWithType * param );
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| 228 |
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| 229 | static void implement( std::list< Declaration * > & translationUnit ) {
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[2065609] | 230 | PassVisitor< ThreadStarter > impl;
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[bd4d011] | 231 | acceptAll( translationUnit, impl );
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| 232 | }
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[549c006] | 233 |
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| 234 | private :
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| 235 | bool thread_ctor_seen = false;
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| 236 | StructDecl * thread_decl = nullptr;
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[bd4d011] | 237 | };
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| 238 |
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[64adb03] | 239 | //=============================================================================================
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| 240 | // General entry routine
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| 241 | //=============================================================================================
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| 242 | void applyKeywords( std::list< Declaration * > & translationUnit ) {
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| 243 | ThreadKeyword ::implement( translationUnit );
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| 244 | CoroutineKeyword ::implement( translationUnit );
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| 245 | MonitorKeyword ::implement( translationUnit );
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[bcda04c] | 246 | }
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| 247 |
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| 248 | void implementMutexFuncs( std::list< Declaration * > & translationUnit ) {
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[64adb03] | 249 | MutexKeyword ::implement( translationUnit );
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| 250 | }
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| 251 |
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[bcda04c] | 252 | void implementThreadStarter( std::list< Declaration * > & translationUnit ) {
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[bd4d011] | 253 | ThreadStarter ::implement( translationUnit );
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[bcda04c] | 254 | }
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| 255 |
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[b32ada31] | 256 | //=============================================================================================
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[bcda04c] | 257 | // Generic keyword implementation
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[b32ada31] | 258 | //=============================================================================================
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[2065609] | 259 | void ConcurrentSueKeyword::postvisit(StructDecl * decl) {
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[9f5ecf5] | 260 | if( decl->name == type_name && decl->body ) {
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[bcda04c] | 261 | assert( !type_decl );
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| 262 | type_decl = decl;
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[b32ada31] | 263 | }
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[bcda04c] | 264 | else if ( is_target(decl) ) {
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[b32ada31] | 265 | handle( decl );
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| 266 | }
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| 267 |
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| 268 | }
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| 269 |
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[bcda04c] | 270 | void ConcurrentSueKeyword::handle( StructDecl * decl ) {
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[9f5ecf5] | 271 | if( ! decl->body ) return;
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[b32ada31] | 272 |
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[bcda04c] | 273 | if( !type_decl ) throw SemanticError( context_error, decl );
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[b32ada31] | 274 |
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[bcda04c] | 275 | FunctionDecl * func = forwardDeclare( decl );
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| 276 | ObjectDecl * field = addField( decl );
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[2f9a722] | 277 | addRoutines( field, func );
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[b32ada31] | 278 | }
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| 279 |
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[bcda04c] | 280 | FunctionDecl * ConcurrentSueKeyword::forwardDeclare( StructDecl * decl ) {
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| 281 |
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| 282 | StructDecl * forward = decl->clone();
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| 283 | forward->set_body( false );
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| 284 | deleteAll( forward->get_members() );
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| 285 | forward->get_members().clear();
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| 286 |
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[bd4d011] | 287 | FunctionType * get_type = new FunctionType( noQualifiers, false );
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[bcda04c] | 288 | ObjectDecl * this_decl = new ObjectDecl(
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| 289 | "this",
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[ba3706f] | 290 | noStorageClasses,
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[b32ada31] | 291 | LinkageSpec::Cforall,
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| 292 | nullptr,
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[83a071f9] | 293 | new ReferenceType(
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[b32ada31] | 294 | noQualifiers,
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[bcda04c] | 295 | new StructInstType(
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| 296 | noQualifiers,
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| 297 | decl
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| 298 | )
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[b32ada31] | 299 | ),
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| 300 | nullptr
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| 301 | );
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| 302 |
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[bd4d011] | 303 | get_type->get_parameters().push_back( this_decl );
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| 304 | get_type->get_returnVals().push_back(
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[e04b636] | 305 | new ObjectDecl(
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| 306 | "ret",
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[ba3706f] | 307 | noStorageClasses,
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[e04b636] | 308 | LinkageSpec::Cforall,
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| 309 | nullptr,
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| 310 | new PointerType(
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| 311 | noQualifiers,
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| 312 | new StructInstType(
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| 313 | noQualifiers,
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[bcda04c] | 314 | type_decl
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[e04b636] | 315 | )
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| 316 | ),
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| 317 | nullptr
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| 318 | )
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| 319 | );
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[b32ada31] | 320 |
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[bcda04c] | 321 | FunctionDecl * get_decl = new FunctionDecl(
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| 322 | getter_name,
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| 323 | Type::Static,
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| 324 | LinkageSpec::Cforall,
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[bd4d011] | 325 | get_type,
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[bcda04c] | 326 | nullptr,
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| 327 | noAttributes,
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| 328 | Type::Inline
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| 329 | );
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| 330 |
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[bd4d011] | 331 | FunctionDecl * main_decl = nullptr;
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| 332 |
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| 333 | if( needs_main ) {
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| 334 | FunctionType * main_type = new FunctionType( noQualifiers, false );
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[bf2438c] | 335 |
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[bd4d011] | 336 | main_type->get_parameters().push_back( this_decl->clone() );
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| 337 |
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| 338 | main_decl = new FunctionDecl(
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| 339 | "main",
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[ba3706f] | 340 | noStorageClasses,
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[bd4d011] | 341 | LinkageSpec::Cforall,
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| 342 | main_type,
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| 343 | nullptr
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| 344 | );
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| 345 | }
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| 346 |
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[2065609] | 347 | declsToAddBefore.push_back( forward );
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| 348 | if( needs_main ) declsToAddBefore.push_back( main_decl );
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| 349 | declsToAddBefore.push_back( get_decl );
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[bcda04c] | 350 |
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| 351 | return get_decl;
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| 352 | }
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| 353 |
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| 354 | ObjectDecl * ConcurrentSueKeyword::addField( StructDecl * decl ) {
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| 355 | ObjectDecl * field = new ObjectDecl(
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| 356 | field_name,
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[ba3706f] | 357 | noStorageClasses,
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[bcda04c] | 358 | LinkageSpec::Cforall,
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| 359 | nullptr,
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| 360 | new StructInstType(
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| 361 | noQualifiers,
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| 362 | type_decl
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| 363 | ),
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| 364 | nullptr
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| 365 | );
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| 366 |
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| 367 | decl->get_members().push_back( field );
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| 368 |
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| 369 | return field;
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| 370 | }
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| 371 |
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[2f9a722] | 372 | void ConcurrentSueKeyword::addRoutines( ObjectDecl * field, FunctionDecl * func ) {
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[ba3706f] | 373 | CompoundStmt * statement = new CompoundStmt();
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[bf2438c] | 374 | statement->push_back(
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[b32ada31] | 375 | new ReturnStmt(
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[e04b636] | 376 | new AddressExpr(
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[bcda04c] | 377 | new MemberExpr(
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| 378 | field,
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| 379 | UntypedExpr::createDeref( new VariableExpr( func->get_functionType()->get_parameters().front() ) )
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[e04b636] | 380 | )
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[b32ada31] | 381 | )
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| 382 | )
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| 383 | );
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| 384 |
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[bcda04c] | 385 | FunctionDecl * get_decl = func->clone();
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| 386 |
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| 387 | get_decl->set_statements( statement );
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[e04b636] | 388 |
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| 389 | declsToAddAfter.push_back( get_decl );
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| 390 |
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[bcda04c] | 391 | // get_decl->fixUniqueId();
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[b32ada31] | 392 | }
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| 393 |
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[64adb03] | 394 | //=============================================================================================
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| 395 | // Mutex keyword implementation
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| 396 | //=============================================================================================
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[97e3296] | 397 |
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[2065609] | 398 | void MutexKeyword::postvisit(FunctionDecl* decl) {
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[102a58b] | 399 |
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[64adb03] | 400 | std::list<DeclarationWithType*> mutexArgs = findMutexArgs( decl );
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| 401 | if( mutexArgs.empty() ) return;
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| 402 |
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[549c006] | 403 | if( CodeGen::isConstructor(decl->name) ) throw SemanticError( "constructors cannot have mutex parameters", decl );
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| 404 |
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| 405 | bool isDtor = CodeGen::isDestructor( decl->name );
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| 406 |
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| 407 | if( isDtor && mutexArgs.size() != 1 ) throw SemanticError( "destructors can only have 1 mutex argument", decl );
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| 408 |
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[64adb03] | 409 | for(auto arg : mutexArgs) {
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| 410 | validate( arg );
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| 411 | }
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| 412 |
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| 413 | CompoundStmt* body = decl->get_statements();
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| 414 | if( ! body ) return;
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| 415 |
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[b32ada31] | 416 | if( !monitor_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl );
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| 417 | if( !guard_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl );
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[549c006] | 418 | if( !dtor_guard_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl );
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[b32ada31] | 419 |
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[549c006] | 420 | if( isDtor ) {
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| 421 | addDtorStatments( decl, body, mutexArgs );
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| 422 | }
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| 423 | else {
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| 424 | addStatments( decl, body, mutexArgs );
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| 425 | }
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[64adb03] | 426 | }
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| 427 |
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[2065609] | 428 | void MutexKeyword::postvisit(StructDecl* decl) {
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[102a58b] | 429 |
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[9f5ecf5] | 430 | if( decl->name == "monitor_desc" ) {
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[9243cc91] | 431 | assert( !monitor_decl );
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| 432 | monitor_decl = decl;
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| 433 | }
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[9f5ecf5] | 434 | else if( decl->name == "monitor_guard_t" ) {
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[ef42b143] | 435 | assert( !guard_decl );
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| 436 | guard_decl = decl;
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| 437 | }
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[549c006] | 438 | else if( decl->name == "monitor_dtor_guard_t" ) {
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| 439 | assert( !dtor_guard_decl );
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| 440 | dtor_guard_decl = decl;
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| 441 | }
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[9243cc91] | 442 | }
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| 443 |
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[64adb03] | 444 | std::list<DeclarationWithType*> MutexKeyword::findMutexArgs( FunctionDecl* decl ) {
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| 445 | std::list<DeclarationWithType*> mutexArgs;
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| 446 |
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| 447 | for( auto arg : decl->get_functionType()->get_parameters()) {
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| 448 | //Find mutex arguments
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| 449 | Type* ty = arg->get_type();
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[615a096] | 450 | if( ! ty->get_mutex() ) continue;
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[64adb03] | 451 |
|
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| 452 | //Append it to the list
|
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| 453 | mutexArgs.push_back( arg );
|
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| 454 | }
|
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| 455 |
|
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| 456 | return mutexArgs;
|
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| 457 | }
|
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| 458 |
|
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| 459 | void MutexKeyword::validate( DeclarationWithType * arg ) {
|
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| 460 | Type* ty = arg->get_type();
|
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| 461 |
|
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| 462 | //Makes sure it's not a copy
|
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[870d1f0] | 463 | ReferenceType* rty = dynamic_cast< ReferenceType * >( ty );
|
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[83a071f9] | 464 | if( ! rty ) throw SemanticError( "Mutex argument must be of reference type ", arg );
|
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[64adb03] | 465 |
|
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| 466 | //Make sure the we are pointing directly to a type
|
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[83a071f9] | 467 | Type* base = rty->get_base();
|
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| 468 | if( dynamic_cast< ReferenceType * >( base ) ) throw SemanticError( "Mutex argument have exactly one level of indirection ", arg );
|
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| 469 | if( dynamic_cast< PointerType * >( base ) ) throw SemanticError( "Mutex argument have exactly one level of indirection ", arg );
|
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[64adb03] | 470 |
|
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| 471 | //Make sure that typed isn't mutex
|
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[e04b636] | 472 | if( base->get_mutex() ) throw SemanticError( "mutex keyword may only appear once per argument ", arg );
|
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[64adb03] | 473 | }
|
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| 474 |
|
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[549c006] | 475 | void MutexKeyword::addDtorStatments( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) {
|
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| 476 | Type * arg_type = args.front()->get_type()->clone();
|
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| 477 | arg_type->set_mutex( false );
|
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| 478 |
|
---|
| 479 | ObjectDecl * monitors = new ObjectDecl(
|
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| 480 | "__monitor",
|
---|
[ba3706f] | 481 | noStorageClasses,
|
---|
[549c006] | 482 | LinkageSpec::Cforall,
|
---|
| 483 | nullptr,
|
---|
| 484 | new PointerType(
|
---|
| 485 | noQualifiers,
|
---|
| 486 | new StructInstType(
|
---|
| 487 | noQualifiers,
|
---|
| 488 | monitor_decl
|
---|
| 489 | )
|
---|
| 490 | ),
|
---|
| 491 | new SingleInit( new UntypedExpr(
|
---|
| 492 | new NameExpr( "get_monitor" ),
|
---|
| 493 | { new CastExpr( new VariableExpr( args.front() ), arg_type ) }
|
---|
| 494 | ))
|
---|
| 495 | );
|
---|
| 496 |
|
---|
| 497 | assert(generic_func);
|
---|
| 498 |
|
---|
| 499 | //in reverse order :
|
---|
| 500 | // monitor_guard_t __guard = { __monitors, #, func };
|
---|
| 501 | body->push_front(
|
---|
[ba3706f] | 502 | new DeclStmt( new ObjectDecl(
|
---|
[549c006] | 503 | "__guard",
|
---|
[ba3706f] | 504 | noStorageClasses,
|
---|
[549c006] | 505 | LinkageSpec::Cforall,
|
---|
| 506 | nullptr,
|
---|
| 507 | new StructInstType(
|
---|
| 508 | noQualifiers,
|
---|
| 509 | dtor_guard_decl
|
---|
| 510 | ),
|
---|
| 511 | new ListInit(
|
---|
| 512 | {
|
---|
| 513 | new SingleInit( new AddressExpr( new VariableExpr( monitors ) ) ),
|
---|
| 514 | new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone() ) )
|
---|
| 515 | },
|
---|
| 516 | noDesignators,
|
---|
| 517 | true
|
---|
| 518 | )
|
---|
| 519 | ))
|
---|
| 520 | );
|
---|
| 521 |
|
---|
| 522 | //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
|
---|
[ba3706f] | 523 | body->push_front( new DeclStmt( monitors) );
|
---|
[549c006] | 524 | }
|
---|
| 525 |
|
---|
[97e3296] | 526 | void MutexKeyword::addStatments( FunctionDecl* func, CompoundStmt * body, const std::list<DeclarationWithType * > & args ) {
|
---|
[9243cc91] | 527 | ObjectDecl * monitors = new ObjectDecl(
|
---|
| 528 | "__monitors",
|
---|
[ba3706f] | 529 | noStorageClasses,
|
---|
[9243cc91] | 530 | LinkageSpec::Cforall,
|
---|
| 531 | nullptr,
|
---|
| 532 | new ArrayType(
|
---|
| 533 | noQualifiers,
|
---|
| 534 | new PointerType(
|
---|
| 535 | noQualifiers,
|
---|
| 536 | new StructInstType(
|
---|
| 537 | noQualifiers,
|
---|
| 538 | monitor_decl
|
---|
| 539 | )
|
---|
| 540 | ),
|
---|
| 541 | new ConstantExpr( Constant::from_ulong( args.size() ) ),
|
---|
| 542 | false,
|
---|
| 543 | false
|
---|
| 544 | ),
|
---|
| 545 | new ListInit(
|
---|
[bd41764] | 546 | map_range < std::list<Initializer*> > ( args, [](DeclarationWithType * var ){
|
---|
[cb0e6de] | 547 | Type * type = var->get_type()->clone();
|
---|
| 548 | type->set_mutex( false );
|
---|
[9243cc91] | 549 | return new SingleInit( new UntypedExpr(
|
---|
| 550 | new NameExpr( "get_monitor" ),
|
---|
[cb0e6de] | 551 | { new CastExpr( new VariableExpr( var ), type ) }
|
---|
[9243cc91] | 552 | ) );
|
---|
| 553 | })
|
---|
| 554 | )
|
---|
| 555 | );
|
---|
| 556 |
|
---|
[97e3296] | 557 | assert(generic_func);
|
---|
| 558 |
|
---|
[64adb03] | 559 | //in reverse order :
|
---|
[97e3296] | 560 | // monitor_guard_t __guard = { __monitors, #, func };
|
---|
[64adb03] | 561 | body->push_front(
|
---|
[ba3706f] | 562 | new DeclStmt( new ObjectDecl(
|
---|
[64adb03] | 563 | "__guard",
|
---|
[ba3706f] | 564 | noStorageClasses,
|
---|
[64adb03] | 565 | LinkageSpec::Cforall,
|
---|
| 566 | nullptr,
|
---|
| 567 | new StructInstType(
|
---|
| 568 | noQualifiers,
|
---|
[ef42b143] | 569 | guard_decl
|
---|
[64adb03] | 570 | ),
|
---|
| 571 | new ListInit(
|
---|
| 572 | {
|
---|
[9243cc91] | 573 | new SingleInit( new VariableExpr( monitors ) ),
|
---|
[97e3296] | 574 | new SingleInit( new ConstantExpr( Constant::from_ulong( args.size() ) ) ),
|
---|
| 575 | new SingleInit( new CastExpr( new VariableExpr( func ), generic_func->clone() ) )
|
---|
[ef42b143] | 576 | },
|
---|
| 577 | noDesignators,
|
---|
| 578 | true
|
---|
[64adb03] | 579 | )
|
---|
| 580 | ))
|
---|
| 581 | );
|
---|
| 582 |
|
---|
[ef42b143] | 583 | //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) };
|
---|
[ba3706f] | 584 | body->push_front( new DeclStmt( monitors) );
|
---|
[64adb03] | 585 | }
|
---|
[bd4d011] | 586 |
|
---|
| 587 | //=============================================================================================
|
---|
| 588 | // General entry routine
|
---|
| 589 | //=============================================================================================
|
---|
[549c006] | 590 | void ThreadStarter::previsit( StructDecl * decl ) {
|
---|
| 591 | if( decl->name == "thread_desc" && decl->body ) {
|
---|
| 592 | assert( !thread_decl );
|
---|
| 593 | thread_decl = decl;
|
---|
| 594 | }
|
---|
| 595 | }
|
---|
| 596 |
|
---|
[2065609] | 597 | void ThreadStarter::postvisit(FunctionDecl * decl) {
|
---|
[9f5ecf5] | 598 | if( ! CodeGen::isConstructor(decl->name) ) return;
|
---|
[bd4d011] | 599 |
|
---|
[549c006] | 600 | Type * typeof_this = InitTweak::getTypeofThis(decl->type);
|
---|
| 601 | StructInstType * ctored_type = dynamic_cast< StructInstType * >( typeof_this );
|
---|
| 602 | if( ctored_type && ctored_type->baseStruct == thread_decl ) {
|
---|
| 603 | thread_ctor_seen = true;
|
---|
| 604 | }
|
---|
| 605 |
|
---|
[bd4d011] | 606 | DeclarationWithType * param = decl->get_functionType()->get_parameters().front();
|
---|
[ce8c12f] | 607 | auto type = dynamic_cast< StructInstType * >( InitTweak::getPointerBase( param->get_type() ) );
|
---|
[bd4d011] | 608 | if( type && type->get_baseStruct()->is_thread() ) {
|
---|
[549c006] | 609 | if( !thread_decl || !thread_ctor_seen ) {
|
---|
| 610 | throw SemanticError("thread keyword requires threads to be in scope, add #include <thread>");
|
---|
| 611 | }
|
---|
| 612 |
|
---|
[bd4d011] | 613 | addStartStatement( decl, param );
|
---|
| 614 | }
|
---|
| 615 | }
|
---|
| 616 |
|
---|
| 617 | void ThreadStarter::addStartStatement( FunctionDecl * decl, DeclarationWithType * param ) {
|
---|
| 618 | CompoundStmt * stmt = decl->get_statements();
|
---|
| 619 |
|
---|
| 620 | if( ! stmt ) return;
|
---|
| 621 |
|
---|
[bf2438c] | 622 | stmt->push_back(
|
---|
[bd4d011] | 623 | new ExprStmt(
|
---|
| 624 | new UntypedExpr(
|
---|
| 625 | new NameExpr( "__thrd_start" ),
|
---|
| 626 | { new VariableExpr( param ) }
|
---|
| 627 | )
|
---|
| 628 | )
|
---|
| 629 | );
|
---|
| 630 | }
|
---|
[68fe077a] | 631 | };
|
---|
[6b0b624] | 632 |
|
---|
| 633 | // Local Variables: //
|
---|
| 634 | // mode: c //
|
---|
| 635 | // tab-width: 4 //
|
---|
| 636 | // End: //
|
---|