Changeset fc1a3e2 for src/Concurrency/Actors.cpp
- Timestamp:
- Apr 19, 2024, 2:36:52 PM (3 months ago)
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- master
- Children:
- ba97ebf
- Parents:
- b9b6efb
- File:
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- 1 edited
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src/Concurrency/Actors.cpp
rb9b6efb rfc1a3e2 28 28 29 29 struct CollectactorStructDecls : public ast::WithGuards { 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 } 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 auto actorIter = actorStructDecls.find( node->aggr() ); 78 79 80 81 82 83 84 85 86 30 unordered_set<const StructDecl *> & actorStructDecls; 31 unordered_set<const StructDecl *> & messageStructDecls; 32 const StructDecl ** requestDecl; 33 const EnumDecl ** allocationDecl; 34 const StructDecl ** actorDecl; 35 const StructDecl ** msgDecl; 36 StructDecl * parentDecl; 37 bool insideStruct = false; 38 bool namedDecl = false; 39 40 // finds and sets a ptr to the allocation enum, which is needed in the next pass 41 void previsit( const EnumDecl * decl ) { 42 if( decl->name == "allocation" ) *allocationDecl = decl; 43 } 44 45 // finds and sets a ptr to the actor, message, and request structs, which are needed in the next pass 46 void previsit( const StructDecl * decl ) { 47 if ( !decl->body ) return; 48 if ( decl->name == "actor" ) { 49 actorStructDecls.insert( decl ); // skip inserting fwd decl 50 *actorDecl = decl; 51 } else if( decl->name == "message" ) { 52 messageStructDecls.insert( decl ); // skip inserting fwd decl 53 *msgDecl = decl; 54 } else if( decl->name == "request" ) *requestDecl = decl; 55 else { 56 GuardValue(insideStruct); 57 insideStruct = true; 58 parentDecl = mutate( decl ); 59 } 60 } 61 62 // this catches structs of the form: 63 // struct dummy_actor { actor a; }; 64 // since they should be: 65 // struct dummy_actor { inline actor; }; 66 void previsit ( const ObjectDecl * decl ) { 67 if ( insideStruct && ! decl->name.empty() ) { 68 GuardValue(namedDecl); 69 namedDecl = true; 70 } 71 } 72 73 // this collects the derived actor and message struct decl ptrs 74 void postvisit( const StructInstType * node ) { 75 if ( ! *actorDecl || ! *msgDecl ) return; 76 if ( insideStruct && !namedDecl ) { 77 auto actorIter = actorStructDecls.find( node->aggr() ); 78 if ( actorIter != actorStructDecls.end() ) { 79 actorStructDecls.insert( parentDecl ); 80 return; 81 } 82 auto messageIter = messageStructDecls.find( node->aggr() ); 83 if ( messageIter != messageStructDecls.end() ) { 84 messageStructDecls.insert( parentDecl ); 85 } 86 } 87 87 } 88 88 89 89 public: 90 91 const StructDecl ** requestDecl, const EnumDecl ** allocationDecl, const StructDecl ** actorDecl, const StructDecl ** msgDecl ) 92 : actorStructDecls( actorStructDecls ), messageStructDecls( messageStructDecls ), requestDecl( requestDecl ), 93 90 CollectactorStructDecls( unordered_set<const StructDecl *> & actorStructDecls, unordered_set<const StructDecl *> & messageStructDecls, 91 const StructDecl ** requestDecl, const EnumDecl ** allocationDecl, const StructDecl ** actorDecl, const StructDecl ** msgDecl ) 92 : actorStructDecls( actorStructDecls ), messageStructDecls( messageStructDecls ), requestDecl( requestDecl ), 93 allocationDecl( allocationDecl ), actorDecl(actorDecl), msgDecl(msgDecl) {} 94 94 }; 95 95 … … 97 97 class FwdDeclTable { 98 98 99 100 struct FwdDeclData { 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 99 // tracks which decls we have seen so that we can hoist the FunctionDecl to the highest point possible 100 struct FwdDeclData { 101 const StructDecl * actorDecl; 102 const StructDecl * msgDecl; 103 FunctionDecl * fwdDecl; 104 bool actorFound; 105 bool msgFound; 106 107 bool readyToInsert() { return actorFound && msgFound; } 108 bool foundActor() { actorFound = true; return readyToInsert(); } 109 bool foundMsg() { msgFound = true; return readyToInsert(); } 110 111 FwdDeclData( const StructDecl * actorDecl, const StructDecl * msgDecl, FunctionDecl * fwdDecl ) : 112 actorDecl(actorDecl), msgDecl(msgDecl), fwdDecl(fwdDecl), actorFound(false), msgFound(false) {} 113 }; 114 115 // map indexed by actor struct ptr 116 // value is map of all FwdDeclData that contains said actor struct ptr 117 // inner map is indexed by the message struct ptr of FwdDeclData 118 unordered_map<const StructDecl *, unordered_map<const StructDecl *, FwdDeclData *>> actorMap; 119 120 // this map is the same except the outer map is indexed by message ptr and the inner is indexed by actor ptr 121 unordered_map<const StructDecl *, unordered_map<const StructDecl *, FwdDeclData *>> msgMap; 122 123 void insert( const StructDecl * decl, const StructDecl * otherDecl, unordered_map<const StructDecl *, unordered_map<const StructDecl *, FwdDeclData *>> & map, FwdDeclData * data ) { 124 auto iter = map.find( decl ); 125 if ( iter != map.end() ) { // if decl exists in map append data to existing inner map 126 iter->second.emplace( make_pair( otherDecl, data ) ); 127 } else { // else create inner map for key 128 map.emplace( make_pair( decl, unordered_map<const StructDecl *, FwdDeclData *>( { make_pair( otherDecl, data ) } ) ) ); 129 } 130 } 131 131 132 132 public: 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 133 // insert decl into table so that we can fwd declare it later (average cost: O(1)) 134 void insertDecl( const StructDecl * actorDecl, const StructDecl * msgDecl, FunctionDecl * fwdDecl ) { 135 FwdDeclData * declToInsert = new FwdDeclData( actorDecl, msgDecl, fwdDecl ); 136 insert( actorDecl, msgDecl, actorMap, declToInsert ); 137 insert( msgDecl, actorDecl, msgMap, declToInsert ); 138 } 139 140 // returns list of decls to insert after current struct decl 141 // Over the entire pass the runtime of this routine is O(r) where r is the # of receive routines 142 list<FunctionDecl *> updateDecl( const StructDecl * decl, bool isMsg ) { 143 unordered_map<const StructDecl *, unordered_map<const StructDecl *, FwdDeclData *>> & map = isMsg ? msgMap : actorMap; 144 unordered_map<const StructDecl *, unordered_map<const StructDecl *, FwdDeclData *>> & otherMap = isMsg ? actorMap : msgMap; 145 auto iter = map.find( decl ); 146 list<FunctionDecl *> toInsertAfter; // this is populated with decls that are ready to insert 147 if ( iter == map.end() ) return toInsertAfter; 148 149 // iterate over inner map 150 unordered_map<const StructDecl *, FwdDeclData *> & currInnerMap = iter->second; 151 for ( auto innerIter = currInnerMap.begin(); innerIter != currInnerMap.end(); ) { 152 FwdDeclData * currentDatum = innerIter->second; 153 bool readyToInsert = isMsg ? currentDatum->foundMsg() : currentDatum->foundActor(); 154 if ( ! readyToInsert ) { ++innerIter; continue; } 155 156 // readyToInsert is true so we are good to insert the forward decl of the message fn 157 toInsertAfter.push_back( currentDatum->fwdDecl ); 158 159 // need to remove from other map before deleting 160 // find inner map in other map ( other map is actor map if original is msg map and vice versa ) 161 const StructDecl * otherDecl = isMsg ? currentDatum->actorDecl : currentDatum->msgDecl; 162 auto otherMapIter = otherMap.find( otherDecl ); 163 164 unordered_map<const StructDecl *, FwdDeclData *> & otherInnerMap = otherMapIter->second; 165 166 // find the FwdDeclData we need to remove in the other inner map 167 auto otherInnerIter = otherInnerMap.find( decl ); 168 169 // remove references to deleted FwdDeclData from current inner map 170 innerIter = currInnerMap.erase( innerIter ); // this does the increment so no explicit inc needed 171 172 // remove references to deleted FwdDeclData from other inner map 173 otherInnerMap.erase( otherInnerIter ); 174 175 // if other inner map is now empty, remove key from other outer map 176 if ( otherInnerMap.empty() ) 177 otherMap.erase( otherDecl ); 178 179 // now we are safe to delete the FwdDeclData since we are done with it 180 // and we have removed all references to it from our data structures 181 delete currentDatum; 182 } 183 184 // if current inner map is now empty, remove key from outer map. 185 // Have to do this after iterating for safety 186 if ( currInnerMap.empty() ) 187 map.erase( decl ); 188 189 return toInsertAfter; 190 } 191 191 }; 192 192 193 193 // generates the definitions of send operators for actors 194 // collects data needed for next pass that does the circular defn resolution 194 // collects data needed for next pass that does the circular defn resolution 195 195 // for message send operators (via table above) 196 196 struct GenFuncsCreateTables : public ast::WithDeclsToAdd<> { 197 198 199 200 201 202 203 204 205 197 unordered_set<const StructDecl *> & actorStructDecls; 198 unordered_set<const StructDecl *> & messageStructDecls; 199 const StructDecl ** requestDecl; 200 const EnumDecl ** allocationDecl; 201 const StructDecl ** actorDecl; 202 const StructDecl ** msgDecl; 203 FwdDeclTable & forwardDecls; 204 205 // generates the operator for actor message sends 206 206 void postvisit( const FunctionDecl * decl ) { 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 UntypedExpr::createAssign( decl->location, 238 239 240 241 242 243 244 245 UntypedExpr::createAssign( decl->location, 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 */ 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 // More readable synonymous code: 358 359 360 361 362 363 364 365 366 new SingleInit( decl->location, 367 368 369 370 371 372 373 374 207 // return if not of the form receive( param1, param2 ) or if it is a forward decl 208 if ( decl->name != "receive" || decl->params.size() != 2 || !decl->stmts ) return; 209 210 // the params should be references 211 const ReferenceType * derivedActorRef = dynamic_cast<const ReferenceType *>(decl->params.at(0)->get_type()); 212 const ReferenceType * derivedMsgRef = dynamic_cast<const ReferenceType *>(decl->params.at(1)->get_type()); 213 if ( !derivedActorRef || !derivedMsgRef ) return; 214 215 // the references should be to struct instances 216 const StructInstType * arg1InstType = dynamic_cast<const StructInstType *>(derivedActorRef->base.get()); 217 const StructInstType * arg2InstType = dynamic_cast<const StructInstType *>(derivedMsgRef->base.get()); 218 if ( !arg1InstType || !arg2InstType ) return; 219 220 // If the struct instances are derived actor and message types then generate the message send routine 221 auto actorIter = actorStructDecls.find( arg1InstType->aggr() ); 222 auto messageIter = messageStructDecls.find( arg2InstType->aggr() ); 223 if ( actorIter != actorStructDecls.end() && messageIter != messageStructDecls.end() ) { 224 ////////////////////////////////////////////////////////////////////// 225 // The following generates this wrapper for all receive(derived_actor &, derived_msg &) functions 226 /* base_actor and base_msg are output params 227 static inline allocation __CFA_receive_wrap( derived_actor & receiver, derived_msg & msg, actor ** base_actor, message ** base_msg ) { 228 base_actor = &receiver; 229 base_msg = &msg; 230 return receive( receiver, msg ); 231 } 232 */ 233 CompoundStmt * wrapBody = new CompoundStmt( decl->location ); 234 235 // generates: base_actor = &receiver; 236 wrapBody->push_back( new ExprStmt( decl->location, 237 UntypedExpr::createAssign( decl->location, 238 UntypedExpr::createDeref( decl->location, new NameExpr( decl->location, "base_actor" ) ), 239 new AddressExpr( decl->location, new NameExpr( decl->location, "receiver" ) ) 240 ) 241 )); 242 243 // generates: base_msg = &msg; 244 wrapBody->push_back( new ExprStmt( decl->location, 245 UntypedExpr::createAssign( decl->location, 246 UntypedExpr::createDeref( decl->location, new NameExpr( decl->location, "base_msg" ) ), 247 new AddressExpr( decl->location, new NameExpr( decl->location, "msg" ) ) 248 ) 249 )); 250 251 // generates: return receive( receiver, msg ); 252 wrapBody->push_back( new ReturnStmt( decl->location, 253 new UntypedExpr ( decl->location, 254 new NameExpr( decl->location, "receive" ), 255 { 256 new NameExpr( decl->location, "receiver" ), 257 new NameExpr( decl->location, "msg" ) 258 } 259 ) 260 )); 261 262 // create receive wrapper to extract base message and actor pointer 263 // put it all together into the complete function decl from above 264 FunctionDecl * receiveWrapper = new FunctionDecl( 265 decl->location, 266 "__CFA_receive_wrap", 267 { 268 new ObjectDecl( 269 decl->location, 270 "receiver", 271 ast::deepCopy( derivedActorRef ) 272 ), 273 new ObjectDecl( 274 decl->location, 275 "msg", 276 ast::deepCopy( derivedMsgRef ) 277 ), 278 new ObjectDecl( 279 decl->location, 280 "base_actor", 281 new PointerType( new PointerType( new StructInstType( *actorDecl ) ) ) 282 ), 283 new ObjectDecl( 284 decl->location, 285 "base_msg", 286 new PointerType( new PointerType( new StructInstType( *msgDecl ) ) ) 287 ) 288 }, // params 289 { 290 new ObjectDecl( 291 decl->location, 292 "__CFA_receive_wrap_ret", 293 new EnumInstType( *allocationDecl ) 294 ) 295 }, 296 wrapBody, // body 297 { Storage::Static }, // storage 298 Linkage::Cforall, // linkage 299 {}, // attributes 300 { Function::Inline } 301 ); 302 303 declsToAddAfter.push_back( receiveWrapper ); 304 305 ////////////////////////////////////////////////////////////////////// 306 // The following generates this send message operator routine for all receive(derived_actor &, derived_msg &) functions 307 /* 308 static inline derived_actor & ?|?( derived_actor & receiver, derived_msg & msg ) { 309 request new_req; 310 allocation (*my_work_fn)( derived_actor &, derived_msg & ) = receive; 311 __receive_fn fn = (__receive_fn)my_work_fn; 312 new_req{ &receiver, &msg, fn }; 313 send( receiver, new_req ); 314 return receiver; 315 } 316 */ 317 CompoundStmt * sendBody = new CompoundStmt( decl->location ); 318 319 // Generates: request new_req; 320 sendBody->push_back( new DeclStmt( 321 decl->location, 322 new ObjectDecl( 323 decl->location, 324 "new_req", 325 new StructInstType( *requestDecl ) 326 ) 327 )); 328 329 // Function type is: allocation (*)( derived_actor &, derived_msg &, actor **, message ** ) 330 FunctionType * derivedReceive = new FunctionType(); 331 derivedReceive->params.push_back( ast::deepCopy( derivedActorRef ) ); 332 derivedReceive->params.push_back( ast::deepCopy( derivedMsgRef ) ); 333 derivedReceive->params.push_back( new PointerType( new PointerType( new StructInstType( *actorDecl ) ) ) ); 334 derivedReceive->params.push_back( new PointerType( new PointerType( new StructInstType( *msgDecl ) ) ) ); 335 derivedReceive->returns.push_back( new EnumInstType( *allocationDecl ) ); 336 337 // Generates: allocation (*my_work_fn)( derived_actor &, derived_msg &, actor **, message ** ) = receive; 338 sendBody->push_back( new DeclStmt( 339 decl->location, 340 new ObjectDecl( 341 decl->location, 342 "my_work_fn", 343 new PointerType( derivedReceive ), 344 new SingleInit( decl->location, new NameExpr( decl->location, "__CFA_receive_wrap" ) ) 345 ) 346 )); 347 348 // Function type is: allocation (*)( actor &, message & ) 349 FunctionType * genericReceive = new FunctionType(); 350 genericReceive->params.push_back( new ReferenceType( new StructInstType( *actorDecl ) ) ); 351 genericReceive->params.push_back( new ReferenceType( new StructInstType( *msgDecl ) ) ); 352 genericReceive->params.push_back( new PointerType( new PointerType( new StructInstType( *actorDecl ) ) ) ); 353 genericReceive->params.push_back( new PointerType( new PointerType( new StructInstType( *msgDecl ) ) ) ); 354 genericReceive->returns.push_back( new EnumInstType( *allocationDecl ) ); 355 356 // Generates: allocation (*fn)( actor &, message & ) = (allocation (*)( actor &, message & ))my_work_fn; 357 // More readable synonymous code: 358 // typedef allocation (*__receive_fn)(actor &, message &); 359 // __receive_fn fn = (__receive_fn)my_work_fn; 360 sendBody->push_back( new DeclStmt( 361 decl->location, 362 new ObjectDecl( 363 decl->location, 364 "fn", 365 new PointerType( genericReceive ), 366 new SingleInit( decl->location, 367 new CastExpr( decl->location, new NameExpr( decl->location, "my_work_fn" ), new PointerType( genericReceive ), ExplicitCast ) 368 ) 369 ) 370 )); 371 372 // Generates: new_req{ (actor *)&receiver, (message *)&msg, fn }; 373 sendBody->push_back( new ExprStmt( 374 decl->location, 375 375 new UntypedExpr ( 376 decl->location, 376 decl->location, 377 377 new NameExpr( decl->location, "?{}" ), 378 378 { 379 379 new NameExpr( decl->location, "new_req" ), 380 381 382 380 new CastExpr( decl->location, new AddressExpr( new NameExpr( decl->location, "receiver" ) ), new PointerType( new StructInstType( *actorDecl ) ), ExplicitCast ), 381 new CastExpr( decl->location, new AddressExpr( new NameExpr( decl->location, "msg" ) ), new PointerType( new StructInstType( *msgDecl ) ), ExplicitCast ), 382 new NameExpr( decl->location, "fn" ) 383 383 } 384 384 ) 385 385 )); 386 386 387 388 389 387 // Generates: send( receiver, new_req ); 388 sendBody->push_back( new ExprStmt( 389 decl->location, 390 390 new UntypedExpr ( 391 391 decl->location, 392 392 new NameExpr( decl->location, "send" ), 393 393 { 394 394 { 395 396 397 395 new NameExpr( decl->location, "receiver" ), 396 new NameExpr( decl->location, "new_req" ) 397 } 398 398 } 399 399 ) 400 400 )); 401 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 402 // Generates: return receiver; 403 sendBody->push_back( new ReturnStmt( decl->location, new NameExpr( decl->location, "receiver" ) ) ); 404 405 // put it all together into the complete function decl from above 406 FunctionDecl * sendOperatorFunction = new FunctionDecl( 407 decl->location, 408 "?|?", 409 { 410 new ObjectDecl( 411 decl->location, 412 "receiver", 413 ast::deepCopy( derivedActorRef ) 414 ), 415 new ObjectDecl( 416 decl->location, 417 "msg", 418 ast::deepCopy( derivedMsgRef ) 419 ) 420 }, // params 421 { 422 new ObjectDecl( 423 decl->location, 424 "receiver_ret", 425 ast::deepCopy( derivedActorRef ) 426 ) 427 }, 428 nullptr, // body 429 { Storage::Static }, // storage 430 Linkage::Cforall, // linkage 431 {}, // attributes 432 { Function::Inline } 433 ); 434 435 // forward decls to resolve use before decl problem for '|' routines 436 forwardDecls.insertDecl( *actorIter, *messageIter , ast::deepCopy( sendOperatorFunction ) ); 437 438 sendOperatorFunction->stmts = sendBody; 439 declsToAddAfter.push_back( sendOperatorFunction ); 440 } 441 441 } 442 442 443 443 public: 444 445 const StructDecl ** requestDecl, const EnumDecl ** allocationDecl, const StructDecl ** actorDecl, const StructDecl ** msgDecl, 446 FwdDeclTable & forwardDecls ) : actorStructDecls(actorStructDecls), messageStructDecls(messageStructDecls), 447 444 GenFuncsCreateTables( unordered_set<const StructDecl *> & actorStructDecls, unordered_set<const StructDecl *> & messageStructDecls, 445 const StructDecl ** requestDecl, const EnumDecl ** allocationDecl, const StructDecl ** actorDecl, const StructDecl ** msgDecl, 446 FwdDeclTable & forwardDecls ) : actorStructDecls(actorStructDecls), messageStructDecls(messageStructDecls), 447 requestDecl(requestDecl), allocationDecl(allocationDecl), actorDecl(actorDecl), msgDecl(msgDecl), forwardDecls(forwardDecls) {} 448 448 }; 449 449 … … 452 452 // generates the forward declarations of the send operator for actor routines 453 453 struct FwdDeclOperator : public ast::WithDeclsToAdd<> { 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 454 unordered_set<const StructDecl *> & actorStructDecls; 455 unordered_set<const StructDecl *> & messageStructDecls; 456 FwdDeclTable & forwardDecls; 457 458 // handles forward declaring the message operator 459 void postvisit( const StructDecl * decl ) { 460 list<FunctionDecl *> toAddAfter; 461 auto actorIter = actorStructDecls.find( decl ); 462 if ( actorIter != actorStructDecls.end() ) { // this is a derived actor decl 463 // get list of fwd decls that we can now insert 464 toAddAfter = forwardDecls.updateDecl( decl, false ); 465 466 // get rid of decl from actorStructDecls since we no longer need it 467 actorStructDecls.erase( actorIter ); 468 } else { 469 auto messageIter = messageStructDecls.find( decl ); 470 if ( messageIter == messageStructDecls.end() ) return; 471 472 toAddAfter = forwardDecls.updateDecl( decl, true ); 473 474 // get rid of decl from messageStructDecls since we no longer need it 475 messageStructDecls.erase( messageIter ); 476 } 477 478 // add the fwd decls to declsToAddAfter 479 for ( FunctionDecl * func : toAddAfter ) { 480 declsToAddAfter.push_back( func ); 481 } 482 } 483 483 484 484 public: 485 FwdDeclOperator( unordered_set<const StructDecl *> & actorStructDecls, unordered_set<const StructDecl *> & messageStructDecls, 486 485 FwdDeclOperator( unordered_set<const StructDecl *> & actorStructDecls, unordered_set<const StructDecl *> & messageStructDecls, 486 FwdDeclTable & forwardDecls ) : actorStructDecls(actorStructDecls), messageStructDecls(messageStructDecls), forwardDecls(forwardDecls) {} 487 487 }; 488 488 489 489 void implementActors( TranslationUnit & translationUnit ) { 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 Pass<CollectactorStructDecls>::run( translationUnit, actorStructDecls, messageStructDecls, requestDecl, 511 512 513 514 if ( !allocationDeclPtr || !requestDeclPtr || !actorDeclPtr || !msgDeclPtr ) 515 516 517 518 519 Pass<GenFuncsCreateTables>::run( translationUnit, actorStructDecls, messageStructDecls, requestDecl, 520 521 522 523 490 // unordered_maps to collect all derived actor and message types 491 unordered_set<const StructDecl *> actorStructDecls; 492 unordered_set<const StructDecl *> messageStructDecls; 493 FwdDeclTable forwardDecls; 494 495 // for storing through the passes 496 // these are populated with various important struct decls 497 const StructDecl * requestDeclPtr = nullptr; 498 const EnumDecl * allocationDeclPtr = nullptr; 499 const StructDecl * actorDeclPtr = nullptr; 500 const StructDecl * msgDeclPtr = nullptr; 501 502 // double pointer to modify local ptrs above 503 const StructDecl ** requestDecl = &requestDeclPtr; 504 const EnumDecl ** allocationDecl = &allocationDeclPtr; 505 const StructDecl ** actorDecl = &actorDeclPtr; 506 const StructDecl ** msgDecl = &msgDeclPtr; 507 508 // first pass collects ptrs to allocation enum, request type, and generic receive fn typedef 509 // also populates maps of all derived actors and messages 510 Pass<CollectactorStructDecls>::run( translationUnit, actorStructDecls, messageStructDecls, requestDecl, 511 allocationDecl, actorDecl, msgDecl ); 512 513 // check that we have found all the decls we need from <actor.hfa>, if not no need to run the rest of this pass 514 if ( !allocationDeclPtr || !requestDeclPtr || !actorDeclPtr || !msgDeclPtr ) 515 return; 516 517 // second pass locates all receive() routines that overload the generic receive fn 518 // it then generates the appropriate operator '|' send routines for the receive routines 519 Pass<GenFuncsCreateTables>::run( translationUnit, actorStructDecls, messageStructDecls, requestDecl, 520 allocationDecl, actorDecl, msgDecl, forwardDecls ); 521 522 // The third pass forward declares operator '|' send routines 523 Pass<FwdDeclOperator>::run( translationUnit, actorStructDecls, messageStructDecls, forwardDecls ); 524 524 } 525 526 525 527 526 } // namespace Concurrency
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