Changes in / [6e8f1df:31ce3d6]
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doc/proposals/concurrency/thePlan.md
r6e8f1df r31ce3d6 8 8 _Phase 2_ : Minimum Viable Product 9 9 done - Monitor type and enter/leave mutex member routines 10 Monitors as a language feature (not calling enter/leave by hand) 10 done - Multi monitors calls, 11 done - Monitors as a language feature (not calling enter/leave by hand) 11 12 Internal scheduling 12 13 13 14 _Phase 3_ : Kernel features 15 Preemption 14 16 Detach thread 15 17 Cluster migration 16 Preemption17 18 18 19 _Phase 4_ : Monitor features 19 Multi monitors calls,20 20 External scheduling 21 21 -
src/Concurrency/Keywords.cc
r6e8f1df r31ce3d6 17 17 #include "Concurrency/Keywords.h" 18 18 19 #include "SymTab/AddVisit.h" 19 20 #include "SynTree/Declaration.h" 20 21 #include "SynTree/Expression.h" … … 29 30 namespace { 30 31 const std::list<Label> noLabels; 32 const std::list< Attribute * > noAttributes; 31 33 Type::StorageClasses noStorage; 32 34 Type::Qualifiers noQualifiers; … … 63 65 // void main( MyCoroutine * this ); 64 66 // 65 class CoroutineKeyword final : public Mutator { 67 class CoroutineKeyword final : public Visitor { 68 template< typename Visitor > 69 friend void SymTab::acceptAndAdd( std::list< Declaration * > &translationUnit, Visitor &visitor ); 66 70 public: 67 71 68 static void implement( std::list< Declaration * > & translationUnit ) {} 72 using Visitor::visit; 73 virtual void visit( StructDecl * decl ) override final; 74 75 void handle( StructDecl * ); 76 Declaration * addField( StructDecl * ); 77 void addRoutines( StructDecl *, Declaration * ); 78 79 static void implement( std::list< Declaration * > & translationUnit ) { 80 CoroutineKeyword impl; 81 SymTab::acceptAndAdd( translationUnit, impl ); 82 } 83 84 private: 85 std::list< Declaration * > declsToAdd, declsToAddAfter; 86 StructDecl* coroutine_decl = nullptr; 69 87 }; 70 88 … … 97 115 98 116 using Visitor::visit; 99 virtual void visit( FunctionDecl * functionDecl ) override final;100 virtual void visit( StructDecl * functionDecl ) override final;117 virtual void visit( FunctionDecl * decl ) override final; 118 virtual void visit( StructDecl * decl ) override final; 101 119 102 120 std::list<DeclarationWithType*> findMutexArgs( FunctionDecl* ); … … 111 129 private: 112 130 StructDecl* monitor_decl = nullptr; 131 StructDecl* guard_decl = nullptr; 113 132 }; 114 133 … … 124 143 125 144 //============================================================================================= 145 // Coroutine keyword implementation 146 //============================================================================================= 147 void CoroutineKeyword::visit(StructDecl * decl) { 148 if( decl->get_name() == "coroutine_desc" ) { 149 assert( !coroutine_decl ); 150 coroutine_decl = decl; 151 } 152 else if ( false ) { 153 handle( decl ); 154 } 155 156 } 157 158 void CoroutineKeyword::handle( StructDecl * decl ) { 159 if( ! decl->has_body() ) return; 160 161 if( !coroutine_decl ) throw SemanticError( "coroutine keyword requires coroutines to be in scope, add #include <coroutine>", decl ); 162 163 Declaration * field = addField( decl ); 164 addRoutines( decl, field ); 165 } 166 167 Declaration * CoroutineKeyword::addField( StructDecl * decl ) { 168 Declaration * cor = new ObjectDecl( 169 "__cor", 170 noStorage, 171 LinkageSpec::Cforall, 172 nullptr, 173 new StructInstType( 174 noQualifiers, 175 coroutine_decl 176 ), 177 nullptr 178 ); 179 180 decl->get_members().push_front( cor ); 181 182 return cor; 183 } 184 185 void CoroutineKeyword::addRoutines( StructDecl * decl, Declaration * field ) { 186 FunctionType * type = new FunctionType( noQualifiers, false ); 187 type->get_parameters().push_back( 188 new ObjectDecl( 189 "this", 190 noStorage, 191 LinkageSpec::Cforall, 192 nullptr, 193 new PointerType( 194 noQualifiers, 195 new StructInstType( 196 noQualifiers, 197 decl 198 ) 199 ), 200 nullptr 201 ) 202 ); 203 204 CompoundStmt * statement = new CompoundStmt( noLabels ); 205 statement->push_back( 206 new ReturnStmt( 207 noLabels, 208 new UntypedMemberExpr( 209 new NameExpr( "__cor" ), 210 new NameExpr( "this" ) 211 ) 212 ) 213 ); 214 215 declsToAddAfter.push_back( 216 new FunctionDecl( 217 "get_coroutine", 218 Type::Static, 219 LinkageSpec::Cforall, 220 type, 221 statement, 222 noAttributes, 223 Type::Inline 224 ) 225 ); 226 } 227 228 229 //============================================================================================= 126 230 // Mutex keyword implementation 127 231 //============================================================================================= … … 137 241 if( ! body ) return; 138 242 139 assert(monitor_decl); 243 if( !monitor_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl ); 244 if( !guard_decl ) throw SemanticError( "mutex keyword requires monitors to be in scope, add #include <monitor>", decl ); 245 140 246 addStatments( body, mutexArgs ); 141 247 } … … 146 252 monitor_decl = decl; 147 253 } 254 else if( decl->get_name() == "monitor_guard_t" ) { 255 assert( !guard_decl ); 256 guard_decl = decl; 257 } 148 258 } 149 259 … … 179 289 180 290 void MutexKeyword::addStatments( CompoundStmt * body, const std::list<DeclarationWithType * > & args ) { 181 182 291 ObjectDecl * monitors = new ObjectDecl( 183 292 "__monitors", … … 218 327 new StructInstType( 219 328 noQualifiers, 220 "monitor_guard_t"329 guard_decl 221 330 ), 222 331 new ListInit( … … 224 333 new SingleInit( new VariableExpr( monitors ) ), 225 334 new SingleInit( new ConstantExpr( Constant::from_ulong( args.size() ) ) ) 226 } 335 }, 336 noDesignators, 337 true 227 338 ) 228 339 )) 229 340 ); 230 341 231 //monitor_desc * __monitors[] = { a, b};342 //monitor_desc * __monitors[] = { get_monitor(a), get_monitor(b) }; 232 343 body->push_front( new DeclStmt( noLabels, monitors) ); 233 344 } -
src/benchmark/CorCtxSwitch.c
r6e8f1df r31ce3d6 24 24 25 25 struct GreatSuspender { 26 coroutine_desc c;26 coroutine_desc __cor; 27 27 }; 28 28 -
src/benchmark/bench.c
r6e8f1df r31ce3d6 86 86 //======================================= 87 87 88 struct CoroutineDummy { coroutine_desc c; };88 struct CoroutineDummy { coroutine_desc __cor; }; 89 89 DECL_COROUTINE(CoroutineDummy); 90 90 void main(CoroutineDummy * this) {} … … 119 119 struct CoroutineResume { 120 120 int N; 121 coroutine_desc c;121 coroutine_desc __cor; 122 122 }; 123 123 … … 150 150 //======================================= 151 151 152 struct ThreadDummy { thread_desc t; };152 struct ThreadDummy { thread_desc __thrd; }; 153 153 DECL_THREAD(ThreadDummy); 154 154 void main(ThreadDummy * this) {} … … 180 180 int N; 181 181 long long result; 182 thread_desc t;182 thread_desc __thrd; 183 183 }; 184 184 -
src/benchmark/csv-data.c
r6e8f1df r31ce3d6 26 26 27 27 struct GreatSuspender { 28 coroutine_desc c;28 coroutine_desc __cor; 29 29 }; 30 30 -
src/examples/multicore.c
r6e8f1df r31ce3d6 2 2 #include <thread> 3 3 4 struct MyThread { thread_desc t; };4 struct MyThread { thread_desc __thrd; }; 5 5 6 6 DECL_THREAD(MyThread); -
src/libcfa/concurrency/coroutine
r6e8f1df r31ce3d6 30 30 }; 31 31 32 #define DECL_COROUTINE(X) static inline coroutine_desc* get_coroutine(X* this) { return &this-> c; } void main(X* this)32 #define DECL_COROUTINE(X) static inline coroutine_desc* get_coroutine(X* this) { return &this->__cor; } void main(X* this) 33 33 34 34 //----------------------------------------------------------------------------- -
src/libcfa/concurrency/invoke.c
r6e8f1df r31ce3d6 56 56 57 57 void CtxInvokeThread( 58 void (*dtor)(void *), 58 59 void (*main)(void *), 59 60 struct thread_desc *(*get_thread)(void *), … … 63 64 64 65 struct thread_desc* thrd = get_thread( this ); 65 struct coroutine_desc* cor = &thrd->c ;66 struct coroutine_desc* cor = &thrd->cor; 66 67 cor->state = Active; 67 68 … … 91 92 struct FakeStack { 92 93 void *fixedRegisters[3]; // fixed registers ebx, edi, esi (popped on 1st uSwitch, values unimportant) 93 uint32_t mxcr; 94 uint16_t fcw;// X97 FPU control word (preserved across function calls)95 void *rturn; 94 uint32_t mxcr; // SSE Status and Control bits (control bits are preserved across function calls) 95 uint16_t fcw; // X97 FPU control word (preserved across function calls) 96 void *rturn; // where to go on return from uSwitch 96 97 void *dummyReturn; // fake return compiler would have pushed on call to uInvoke 97 98 void *argument[3]; // for 16-byte ABI, 16-byte alignment starts here … … 105 106 ((struct FakeStack *)(((struct machine_context_t *)stack->context)->SP))->argument[0] = this; // argument to invoke 106 107 ((struct FakeStack *)(((struct machine_context_t *)stack->context)->SP))->rturn = invoke; 108 ((struct FakeStack *)(((struct machine_context_t *)stack->context)->SP))->mxcr = 0x1F80; //Vol. 2A 3-520 109 ((struct FakeStack *)(((struct machine_context_t *)stack->context)->SP))->fcw = 0x037F; //Vol. 1 8-7 107 110 108 111 #elif defined( __x86_64__ ) 109 112 110 113 struct FakeStack { 111 void *fixedRegisters[5]; 112 uint32_t mxcr; 113 uint16_t fcw; 114 void *rturn; 115 void *dummyReturn; 114 void *fixedRegisters[5]; // fixed registers rbx, r12, r13, r14, r15 115 uint32_t mxcr; // SSE Status and Control bits (control bits are preserved across function calls) 116 uint16_t fcw; // X97 FPU control word (preserved across function calls) 117 void *rturn; // where to go on return from uSwitch 118 void *dummyReturn; // NULL return address to provide proper alignment 116 119 }; 117 120 -
src/libcfa/concurrency/invoke.h
r6e8f1df r31ce3d6 28 28 #define unlikely(x) __builtin_expect(!!(x), 0) 29 29 #define thread_local _Thread_local 30 #define SCHEDULER_CAPACITY 1031 30 32 31 struct spinlock { … … 60 59 61 60 struct coStack_t { 62 unsigned int size; 63 void *storage; 64 void *limit; 65 void *base; 66 void *context; 67 void *top; 68 bool userStack; 61 unsigned int size; // size of stack 62 void *storage; // pointer to stack 63 void *limit; // stack grows towards stack limit 64 void *base; // base of stack 65 void *context; // address of cfa_context_t 66 void *top; // address of top of storage 67 bool userStack; // whether or not the user allocated the stack 69 68 }; 70 69 … … 72 71 73 72 struct coroutine_desc { 74 struct coStack_t stack; 75 const char *name; 76 int errno_; 77 enum coroutine_state state; 78 struct coroutine_desc *starter; 79 struct coroutine_desc *last; 73 struct coStack_t stack; // stack information of the coroutine 74 const char *name; // textual name for coroutine/task, initialized by uC++ generated code 75 int errno_; // copy of global UNIX variable errno 76 enum coroutine_state state; // current execution status for coroutine 77 struct coroutine_desc *starter; // first coroutine to resume this one 78 struct coroutine_desc *last; // last coroutine to resume this one 80 79 }; 81 80 82 81 struct thread_desc { 83 struct coroutine_desc c ;// coroutine body used to store context82 struct coroutine_desc cor; // coroutine body used to store context 84 83 struct signal_once terminated; // indicate if execuation state is not halted 85 struct thread_desc * next; 84 struct thread_desc * next; // instrusive link field for threads 86 85 }; 87 86 -
src/libcfa/concurrency/kernel.c
r6e8f1df r31ce3d6 107 107 108 108 void ?{}( thread_desc * this, current_stack_info_t * info) { 109 (&this->c ){ info };109 (&this->cor){ info }; 110 110 } 111 111 … … 113 113 // Processor coroutine 114 114 void ?{}(processorCtx_t * this, processor * proc) { 115 (&this-> c){};115 (&this->__cor){}; 116 116 this->proc = proc; 117 117 proc->runner = this; … … 119 119 120 120 void ?{}(processorCtx_t * this, processor * proc, current_stack_info_t * info) { 121 (&this-> c){ info };121 (&this->__cor){ info }; 122 122 this->proc = proc; 123 123 proc->runner = this; … … 255 255 processorCtx_t proc_cor_storage = { proc, &info }; 256 256 257 LIB_DEBUG_PRINTF("Coroutine : created stack %p\n", proc_cor_storage. c.stack.base);257 LIB_DEBUG_PRINTF("Coroutine : created stack %p\n", proc_cor_storage.__cor.stack.base); 258 258 259 259 //Set global state 260 proc->current_coroutine = &proc->runner-> c;260 proc->current_coroutine = &proc->runner->__cor; 261 261 proc->current_thread = NULL; 262 262 … … 268 268 // back to here. Instead directly call the main since we already are on the 269 269 // appropriate stack. 270 proc_cor_storage. c.state = Active;270 proc_cor_storage.__cor.state = Active; 271 271 main( &proc_cor_storage ); 272 proc_cor_storage. c.state = Halted;272 proc_cor_storage.__cor.state = Halted; 273 273 274 274 // Main routine of the core returned, the core is now fully terminated … … 359 359 this_processor = systemProcessor; 360 360 this_processor->current_thread = mainThread; 361 this_processor->current_coroutine = &mainThread->c ;361 this_processor->current_coroutine = &mainThread->cor; 362 362 363 363 // SKULLDUGGERY: Force a context switch to the system processor to set the main thread's context to the current UNIX -
src/libcfa/concurrency/kernel_private.h
r6e8f1df r31ce3d6 35 35 struct processorCtx_t { 36 36 processor * proc; 37 coroutine_desc c;37 coroutine_desc __cor; 38 38 }; 39 39 -
src/libcfa/concurrency/monitor
r6e8f1df r31ce3d6 34 34 } 35 35 36 //Basic entering routine37 void enter(monitor_desc *);38 void leave(monitor_desc *);39 40 36 //Array entering routine 41 37 void enter(monitor_desc **, int count); … … 49 45 static inline int ?<?(monitor_desc* lhs, monitor_desc* rhs) { 50 46 return ((intptr_t)lhs) < ((intptr_t)rhs); 51 }52 53 static inline void ?{}( monitor_guard_t * this, monitor_desc ** m ) {54 this->m = m;55 this->count = 1;56 enter( *this->m );57 47 } 58 48 -
src/libcfa/concurrency/monitor.c
r6e8f1df r31ce3d6 74 74 void enter(monitor_desc ** monitors, int count) { 75 75 for(int i = 0; i < count; i++) { 76 // printf("%d\n", i);77 76 enter( monitors[i] ); 78 77 } … … 81 80 void leave(monitor_desc ** monitors, int count) { 82 81 for(int i = count - 1; i >= 0; i--) { 83 // printf("%d\n", i);84 82 leave( monitors[i] ); 85 83 } -
src/libcfa/concurrency/thread
r6e8f1df r31ce3d6 28 28 // Anything that is resumed is a coroutine. 29 29 trait is_thread(dtype T) { 30 void ^?{}(T* this); 30 31 void main(T* this); 31 32 thread_desc* get_thread(T* this); 32 33 }; 33 34 34 #define DECL_THREAD(X) thread_desc* get_thread(X* this) { return &this-> t; } void main(X* this)35 #define DECL_THREAD(X) thread_desc* get_thread(X* this) { return &this->__thrd; } void main(X* this) 35 36 36 37 forall( dtype T | is_thread(T) ) 37 38 static inline coroutine_desc* get_coroutine(T* this) { 38 return &get_thread(this)->c ;39 return &get_thread(this)->cor; 39 40 } 40 41 41 42 static inline coroutine_desc* get_coroutine(thread_desc* this) { 42 return &this->c ;43 return &this->cor; 43 44 } 44 45 … … 64 65 void ?{}( scoped(T)* this, P params ); 65 66 66 forall( dtype T | sized(T) | is_thread(T) | { void ^?{}(T*); })67 forall( dtype T | sized(T) | is_thread(T) ) 67 68 void ^?{}( scoped(T)* this ); 68 69 -
src/libcfa/concurrency/thread.c
r6e8f1df r31ce3d6 42 42 43 43 void ?{}(thread_desc* this) { 44 (&this->c ){};45 this->c .name = "Anonymous Coroutine";44 (&this->cor){}; 45 this->cor.name = "Anonymous Coroutine"; 46 46 (&this->terminated){}; 47 47 this->next = NULL; … … 49 49 50 50 void ^?{}(thread_desc* this) { 51 ^(&this->c ){};51 ^(&this->cor){}; 52 52 } 53 53 … … 64 64 } 65 65 66 forall( dtype T | sized(T) | is_thread(T) | { void ^?{}(T*); })66 forall( dtype T | sized(T) | is_thread(T) ) 67 67 void ^?{}( scoped(T)* this ) { 68 68 stop(&this->handle); … … 120 120 extern "C" { 121 121 void __thread_signal_termination( thread_desc * this ) { 122 this->c .state = Halted;122 this->cor.state = Halted; 123 123 LIB_DEBUG_PRINTF("Thread end : %p\n", this); 124 124 signal( &this->terminated ); -
src/main.cc
r6e8f1df r31ce3d6 241 241 OPTPRINT( "fixNames" ) 242 242 CodeGen::fixNames( translationUnit ); 243 OPTPRINT( " tweakInit" )243 OPTPRINT( "genInit" ) 244 244 InitTweak::genInit( translationUnit ); 245 245 OPTPRINT( "expandMemberTuples" ); -
src/tests/coroutine.c
r6e8f1df r31ce3d6 4 4 struct Fibonacci { 5 5 int fn; // used for communication 6 coroutine_desc c;6 coroutine_desc __cor; 7 7 }; 8 8 … … 12 12 13 13 coroutine_desc* get_coroutine(Fibonacci* this) { 14 return &this-> c;14 return &this->__cor; 15 15 } 16 16 … … 18 18 #ifdef MORE_DEBUG 19 19 sout | "Starting main of coroutine " | this | endl; 20 sout | "Started from " | this-> c.last | endl;20 sout | "Started from " | this->__cor.last | endl; 21 21 #endif 22 22 int fn1, fn2; // retained between resumes -
src/tests/monitor.c
r6e8f1df r31ce3d6 13 13 } 14 14 15 monitor_desc * get_monitor( global_t * this ) { 16 return &this->m; 17 } 18 15 19 static global_t global; 16 20 17 void increment( /*mutex*/ global_t * this ) { 18 monitor_desc * mon = &this->m; 19 monitor_guard_t g1 = { &mon }; 20 { 21 monitor_guard_t g2 = { &mon }; 22 { 23 monitor_guard_t g3 = { &mon }; 24 this->value += 1; 25 } 26 } 21 void increment3( global_t * mutex this ) { 22 this->value += 1; 27 23 } 28 24 29 struct MyThread { thread_desc t; }; 25 void increment2( global_t * mutex this ) { 26 increment3( this ); 27 } 28 29 void increment( global_t * mutex this ) { 30 increment2( this ); 31 } 32 33 struct MyThread { thread_desc __thrd; }; 30 34 31 35 DECL_THREAD(MyThread); -
src/tests/multi-monitor.c
r6e8f1df r31ce3d6 6 6 static int global12, global23, global13; 7 7 8 static monitor_desc m1, m2, m3; 8 struct monitor_t { 9 monitor_desc m; 10 }; 9 11 10 void increment( /*mutex*/ monitor_desc * p1, /*mutex*/ monitor_desc * p2, int * value ) { 11 monitor_desc * mons[] = { p1, p2 }; 12 monitor_guard_t g = { mons, 2 }; 12 monitor_desc * get_monitor( monitor_t * this ) { 13 return &this->m; 14 } 15 16 static monitor_t m1, m2, m3; 17 18 void increment( monitor_t * mutex p1, monitor_t * mutex p2, int * value ) { 13 19 *value += 1; 14 20 } 15 21 16 22 struct MyThread { 17 thread_desc t;23 thread_desc __thrd; 18 24 int target; 19 25 }; -
src/tests/thread.c
r6e8f1df r31ce3d6 4 4 #include <thread> 5 5 6 struct First { thread_desc t; signal_once* lock; };7 struct Second { thread_desc t; signal_once* lock; };6 struct First { thread_desc __thrd; signal_once* lock; }; 7 struct Second { thread_desc __thrd; signal_once* lock; }; 8 8 9 9 DECL_THREAD(First);
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