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[progcomp2012.git] / progcomp / judge / manager / program.h

diff --git a/progcomp/judge/manager/program.h b/progcomp/judge/manager/program.h
new file mode 100644 (file)
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+++ b/progcomp/judge/manager/program.h
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+#ifndef PROGRAM_H
+#define PROGRAM_H
+
+#include "thread_util.h"
+
+#include <string>
+
+/**
+ * A wrapping class for an external program, which can exchange messages with the current process through stdin/stdout
+ * Useful for attaching control of an operation to an external process - for example, AI for a game
+ */
+class Program
+{
+       public:
+               Program(const char * executeablePath); //Constructor
+               virtual ~Program(); //Destructor
+
+
+
+
+               bool SendMessage(const char * print, ...); //Sends a formated message (NOTE: Prints a newline)
+               bool SendMessage(const std::string & buffer) {return SendMessage(buffer.c_str());} //Sends a C++ string message
+               bool GetMessage(std::string & buffer, double timeout=-1); //Retrieves a message, or waits for a timeout (if positive)
+
+               bool Running() const;
+
+               
+
+       protected:
+               FILE * input;   //Stream used for sending information TO the process
+               FILE * output; //Stream used for retrieving information FROM the process
+
+       private:
+               pid_t pid; //Process ID of the program wrapped
+               
+};
+
+#endif //PROGRAM_H
+
+