From: Sam Moore Date: Sat, 5 May 2012 13:03:33 +0000 (+0800) Subject: [PATCH] Handle case where an AI sends an invalid message and then crashes X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=add28d0a7f265f5fcfdd67a4c1e590b19f76272e;p=progcomp2012.git [PATCH] Handle case where an AI sends an invalid message and then crashes If an AI sent a bad move and then crashed, a SIGPIPE would be reported rather than the AI's bad move. NOTE: There is an issue with Program::Running, because the segfaulted AI still returns 'true', which leads to confusion in handling SIGPIPE. Should probably handle segfaulting AIs better. Then again, people should probably not make segfaulting AIs. [SZM] --- diff --git a/judge/manager/ai_controller.cpp b/judge/manager/ai_controller.cpp index 40ee3df..b73520f 100644 --- a/judge/manager/ai_controller.cpp +++ b/judge/manager/ai_controller.cpp @@ -54,11 +54,12 @@ MovementResult AI_Controller::QueryMove(string & buffer) if (!Running()) return MovementResult::NO_MOVE; //AI has quit Game::theGame->theBoard.Print(output, colour); - + //Game::theGame->logMessage("DEBUG: About to get message from %d\n", colour); if (!GetMessage(buffer,timeout)) { return MovementResult::NO_MOVE; //AI did not respond (within the timeout). It will lose by default. } + //Game::theGame->logMessage("DEBUG: Got message \"%s\" from %d\n", buffer.c_str(), colour); return MovementResult::OK; //Got the message } diff --git a/judge/manager/ai_controller.h b/judge/manager/ai_controller.h index 0a4baeb..a5c791d 100644 --- a/judge/manager/ai_controller.h +++ b/judge/manager/ai_controller.h @@ -19,10 +19,10 @@ class AI_Controller : public Controller, private Program virtual MovementResult QuerySetup(const char * opponentName,std::string setup[]); virtual MovementResult QueryMove(std::string & buffer); - virtual void Message(const char * message) + virtual bool Message(const char * message) { //fprintf(stderr, "Sending message \"%s\" to AI program...\n", message); - Program::SendMessage(message); + return Program::SendMessage(message); } virtual void Pause() {Program::Pause();} //Hack wrapper virtual void Continue() {Program::Continue();} //Hack wrapper diff --git a/judge/manager/controller.cpp b/judge/manager/controller.cpp index 20b79aa..e31c1ee 100644 --- a/judge/manager/controller.cpp +++ b/judge/manager/controller.cpp @@ -104,7 +104,7 @@ MovementResult Controller::MakeMove(string & buffer) } - + int x; int y; string direction=""; stringstream s(buffer); s >> x; @@ -112,6 +112,9 @@ MovementResult Controller::MakeMove(string & buffer) s >> direction; + + + Board::Direction dir; if (direction == "UP") { @@ -131,6 +134,7 @@ MovementResult Controller::MakeMove(string & buffer) } else { + if (Game::theGame->allowIllegalMoves) return MovementResult::OK; else diff --git a/judge/manager/controller.h b/judge/manager/controller.h index 069ccd6..361f309 100644 --- a/judge/manager/controller.h +++ b/judge/manager/controller.h @@ -21,8 +21,8 @@ class Controller virtual bool HumanController() const {return false;} //Hacky... overrides in human_controller... avoids having to use run time type info - void Message(const std::string & buffer) {Message(buffer.c_str());} - virtual void Message(const char * string) = 0; + bool Message(const std::string & buffer) {return Message(buffer.c_str());} + virtual bool Message(const char * string) = 0; virtual MovementResult QuerySetup(const char * opponentName, std::string setup[]) = 0; virtual MovementResult QueryMove(std::string & buffer) = 0; diff --git a/judge/manager/game.cpp b/judge/manager/game.cpp index f50ce27..3f5b46b 100644 --- a/judge/manager/game.cpp +++ b/judge/manager/game.cpp @@ -264,62 +264,61 @@ void Game::HandleBrokenPipe(int sig) fprintf(stderr, "ERROR - Recieved SIGPIPE during game exit!\n"); exit(EXIT_FAILURE); } - if (theGame->turn == Piece::RED) - { - theGame->logMessage("Game ends on RED's turn - REASON: "); - if (theGame->blue->Valid()) //Should probably check this - theGame->blue->Message("DEFAULT"); - } - else if (theGame->turn == Piece::BLUE) - { - - theGame->logMessage("Game ends on BLUE's turn - REASON: "); - if (theGame->red->Valid()) //Should probably check this - theGame->red->Message("DEFAULT"); - } - else - { - theGame->logMessage("Game ends on ERROR's turn - REASON: "); - - } theGame->logMessage("SIGPIPE - Broken pipe (AI program no longer running)\n"); - if (Game::theGame->printBoard) - Game::theGame->theBoard.PrintPretty(stdout, Piece::BOTH); + MovementResult result = MovementResult::BAD_RESPONSE; - - #ifdef BUILD_GRAPHICS - if (Game::theGame->graphicsEnabled && theGame->log == stdout) + if (theGame->turn == Piece::RED) { - theGame->logMessage("CLOSE WINDOW TO EXIT\n"); - Game::theGame->theBoard.Draw(Piece::BOTH); - while (true) + if (theGame->red->Valid()) { - SDL_Event event; - while (SDL_PollEvent(&event)) + theGame->logMessage(" Strange; RED still appears valid.\n"); + if (theGame->blue->Valid()) { - switch (event.type) - { - case SDL_QUIT: - exit(EXIT_SUCCESS); - break; - } - } + theGame->logMessage(" BLUE also appears valid. Exiting with ERROR.\n"); + result = MovementResult::ERROR; + } + else + { + theGame->logMessage("BLUE is invalid. Wait for BLUE's turn to exit.\n"); + return; + } } } - else - #endif //BUILD_GRAPHICS + if (theGame->turn == Piece::BLUE) { - if (theGame->log == stdout || theGame->log == stderr) + if (theGame->blue->Valid()) { - theGame->logMessage( "PRESS ENTER TO EXIT\n"); - theGame->theBoard.Print(theGame->log); - while (fgetc(stdin) != '\n'); + theGame->logMessage(" Strange; BLUE still appears valid.\n"); + if (theGame->red->Valid()) + { + theGame->logMessage(" RED also appears valid. Exiting with ERROR.\n"); + result = MovementResult::ERROR; + } + else + { + theGame->logMessage("RED is invalid. Wait for RED's turn to exit.\n"); + return; + } } } - + + Game::theGame->PrintEndMessage(result); + + string buffer = ""; + PrintResults(result, buffer); + + //Message the AI's the quit message + Game::theGame->red->Message("QUIT " + buffer); + Game::theGame->blue->Message("QUIT " + buffer); + + //Log the message + if (Game::theGame->GetLogFile() != stdout) + Game::theGame->logMessage("%s\n", buffer.c_str()); + + fprintf(stdout, "%s\n", buffer.c_str()); exit(EXIT_SUCCESS); } @@ -425,6 +424,7 @@ void Game::PrintEndMessage(const MovementResult & result) } break; + } if (printBoard) @@ -541,8 +541,6 @@ MovementResult Game::Play() logMessage( "%d RED: ", turnCount); result = red->MakeMove(buffer); - red->Message(buffer); - blue->Message(buffer); logMessage( "%s\n", buffer.c_str()); if (!Board::HaltResult(result)) @@ -552,6 +550,12 @@ MovementResult Game::Play() if (Board::HaltResult(result)) break; + red->Message(buffer); + blue->Message(buffer); + + + + if (stallTime >= 0) Wait(stallTime); else @@ -595,8 +599,6 @@ MovementResult Game::Play() logMessage( "%d BLU: ", turnCount); result = blue->MakeMove(buffer); - blue->Message(buffer); - red->Message(buffer); logMessage( "%s\n", buffer.c_str()); if (!Board::HaltResult(result)) @@ -606,6 +608,10 @@ MovementResult Game::Play() if (Board::HaltResult(result)) break; + red->Message(buffer); + blue->Message(buffer); + + if (theBoard.MobilePieces(Piece::RED) == 0) result = MovementResult::DRAW; @@ -904,3 +910,60 @@ string itostr(int i) return s.str(); } + +void Game::PrintResults(const MovementResult & result, string & buffer) +{ + stringstream s(""); + switch (Game::theGame->Turn()) + { + case Piece::RED: + s << Game::theGame->red->name << " RED "; + break; + case Piece::BLUE: + s << Game::theGame->blue->name << " BLUE "; + break; + case Piece::BOTH: + s << "neither BOTH "; + break; + case Piece::NONE: + s << "neither NONE "; + break; + } + + if (!Board::LegalResult(result) && result != MovementResult::BAD_SETUP) + s << "ILLEGAL "; + else if (!Board::HaltResult(result)) + s << "INTERNAL_ERROR "; + else + { + switch (result.type) + { + case MovementResult::VICTORY_FLAG: + case MovementResult::VICTORY_ATTRITION: //It does not matter how you win, it just matters that you won! + s << "VICTORY "; + break; + case MovementResult::SURRENDER: + s << "SURRENDER "; + break; + case MovementResult::DRAW: + s << "DRAW "; + break; + case MovementResult::DRAW_DEFAULT: + s << "DRAW_DEFAULT "; + break; + case MovementResult::BAD_SETUP: + s << "BAD_SETUP "; + break; + default: + s << "INTERNAL_ERROR "; + break; + } + } + + s << Game::theGame->TurnCount() << " " << Game::theGame->theBoard.TotalPieceValue(Piece::RED) << " " << Game::theGame->theBoard.TotalPieceValue(Piece::BLUE); + + buffer = s.str(); + + +} + diff --git a/judge/manager/game.h b/judge/manager/game.h index 5a5f8a6..ce83545 100644 --- a/judge/manager/game.h +++ b/judge/manager/game.h @@ -43,6 +43,7 @@ class Game void MakeControllers(const char * redPath, const char * bluePath); //Create a controller based off a path public: int logMessage(const char * format, ...); + static void PrintResults(const MovementResult & result, std::string & buffer); FILE * GetLogFile() const {return log;} Controller * red; Controller * blue; @@ -83,7 +84,7 @@ class FileController : public Controller FileController(const Piece::Colour & newColour, FILE * newFile) : Controller(newColour, "file"), file(newFile) {} virtual ~FileController() {} - virtual void Message(const char * string) {} //Don't send messages + virtual bool Message(const char * string) {return true;} //Don't send messages virtual MovementResult QuerySetup(const char * opponentName, std::string setup[]); virtual MovementResult QueryMove(std::string & buffer); virtual bool Valid() const {return file != NULL;} diff --git a/judge/manager/human_controller.h b/judge/manager/human_controller.h index b2069fc..9a53ac4 100644 --- a/judge/manager/human_controller.h +++ b/judge/manager/human_controller.h @@ -15,7 +15,7 @@ class Human_Controller : public Controller virtual bool HumanController() const {return true;} virtual MovementResult QuerySetup(const char * opponentName, std::string setup[]); virtual MovementResult QueryMove(std::string & buffer); - virtual void Message(const char * message) {fprintf(stderr, "%s\n", message);} + virtual bool Message(const char * message) {return (strlen(message) <= 0 || fprintf(stderr, "%s\n", message) > 0);} private: const bool graphicsEnabled; diff --git a/judge/manager/main.cpp b/judge/manager/main.cpp index b0e2b4c..ee35837 100644 --- a/judge/manager/main.cpp +++ b/judge/manager/main.cpp @@ -13,7 +13,7 @@ using namespace std; Piece::Colour SetupGame(int argc, char ** argv); void DestroyGame(); -void PrintResults(const MovementResult & result, string & buffer); + char * video = NULL; @@ -46,7 +46,7 @@ int main(int argc, char ** argv) Game::theGame->PrintEndMessage(result); string buffer = ""; - PrintResults(result, buffer); + Game::PrintResults(result, buffer); //Message the AI's the quit message Game::theGame->red->Message("QUIT " + buffer); @@ -278,61 +278,6 @@ Piece::Colour SetupGame(int argc, char ** argv) } -void PrintResults(const MovementResult & result, string & buffer) -{ - stringstream s(""); - switch (Game::theGame->Turn()) - { - case Piece::RED: - s << Game::theGame->red->name << " RED "; - break; - case Piece::BLUE: - s << Game::theGame->blue->name << " BLUE "; - break; - case Piece::BOTH: - s << "neither BOTH "; - break; - case Piece::NONE: - s << "neither NONE "; - break; - } - - if (!Board::LegalResult(result) && result != MovementResult::BAD_SETUP) - s << "ILLEGAL "; - else if (!Board::HaltResult(result)) - s << "INTERNAL_ERROR "; - else - { - switch (result.type) - { - case MovementResult::VICTORY_FLAG: - case MovementResult::VICTORY_ATTRITION: //It does not matter how you win, it just matters that you won! - s << "VICTORY "; - break; - case MovementResult::SURRENDER: - s << "SURRENDER "; - break; - case MovementResult::DRAW: - s << "DRAW "; - break; - case MovementResult::DRAW_DEFAULT: - s << "DRAW_DEFAULT "; - break; - case MovementResult::BAD_SETUP: - s << "BAD_SETUP "; - break; - default: - s << "INTERNAL_ERROR "; - break; - } - } - - s << Game::theGame->TurnCount() << " " << Game::theGame->theBoard.TotalPieceValue(Piece::RED) << " " << Game::theGame->theBoard.TotalPieceValue(Piece::BLUE); - - buffer = s.str(); - - -} void DestroyGame() { diff --git a/judge/manager/network_controller.h b/judge/manager/network_controller.h index 31b0c92..130bede 100644 --- a/judge/manager/network_controller.h +++ b/judge/manager/network_controller.h @@ -27,10 +27,10 @@ class NetworkSender : public NetworkController virtual bool Valid() const {return NetworkController::Valid() && controller->Valid();} - virtual void Message(const char * message) + virtual bool Message(const char * message) { //fprintf(stderr,"NetworkSender sending message %s to underlying controller\n", message); - controller->Message(message); + return (controller->Message(message)); } virtual MovementResult QuerySetup(const char * opponentName, std::string setup[]); @@ -47,7 +47,7 @@ class NetworkReceiver : public NetworkController NetworkReceiver(const Piece::Colour & colour, Network * newNetwork) : NetworkController(colour, newNetwork) {} virtual ~NetworkReceiver() {} - virtual void Message(const char * message) {} //Do nothing (Counter intuitive much) + virtual bool Message(const char * message) {return true;} //Do nothing (Counter intuitive much) virtual MovementResult QuerySetup(const char * opponentName, std::string setup[]); virtual MovementResult QueryMove(std::string & buffer); diff --git a/judge/manager/program.cpp b/judge/manager/program.cpp index c936de3..00a28e9 100644 --- a/judge/manager/program.cpp +++ b/judge/manager/program.cpp @@ -251,6 +251,7 @@ bool Program::GetMessage(string & buffer, double timeout) buffer += c; } //fprintf(stderr, "%s\n", buffer.c_str()); + //fprintf(stderr,"DONE\n"); return true; /* Old way, using threads, which apparently is terrible