unofficial version 0.8: chat, code cleanup

[netris.git] / robot.c

diff --git a/robot.c b/robot.c
deleted file mode 100644 (file)
index 31bb5d8..0000000
--- a/robot.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * Netris -- A free networked version of T*tris
- * Copyright (C) 1994,1995,1996  Mark H. Weaver <mhw@netris.org>
- * 
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id: robot.c,v 1.8 1996/02/09 08:22:15 mhw Exp $
- */
-
-#include "netris.h"
-#include <unistd.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <string.h>
-#include <stdarg.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <errno.h>
-
-static MyEventType RobotGenFunc(EventGenRec *gen, MyEvent *event);
-static EventGenRec robotGen =
-               { NULL, 0, FT_read, -1, RobotGenFunc, EM_robot };
-
-static int robotProcess;
-static FILE *toRobot;
-static int toRobotFd, fromRobotFd;
-
-static char robotBuf[128];
-static int robotBufSize, robotBufMsg;
-
-static int gotSigPipe;
-
-ExtFunc void InitRobot(char *robotProg)
-{
-       int to[2], from[2];
-       int status;
-       MyEvent event;
-
-       signal(SIGPIPE, CatchPipe);
-       AtExit(CloseRobot);
-       if (pipe(to) || pipe(from))
-               die("pipe");
-       robotProcess = fork();
-       if (robotProcess < 0)
-               die("fork");
-       if (robotProcess == 0) {
-               dup2(to[0], STDIN_FILENO);
-               dup2(from[1], STDOUT_FILENO);
-               close(to[0]);
-               close(to[1]);
-               close(from[0]);
-               close(from[1]);
-               execl("/bin/sh", "sh", "-c", robotProg, NULL);
-               die("execl failed");
-       }
-       close(to[0]);
-       close(from[1]);
-       toRobotFd = to[1];
-       robotGen.fd = fromRobotFd = from[0];
-       if (!(toRobot = fdopen(toRobotFd, "w")))
-               die("fdopen");
-       if ((status = fcntl(fromRobotFd, F_GETFL, 0)) < 0)
-               die("fcntl/F_GETFL");
-       status |= O_NONBLOCK;
-       if (fcntl(fromRobotFd, F_SETFL, status) < 0)
-               die("fcntl/F_SETFL");
-       AddEventGen(&robotGen);
-       RobotCmd(1, "Version %d\n", ROBOT_VERSION);
-       if (WaitMyEvent(&event, EM_robot) != E_robot)
-               fatal("Robot didn't start successfully");
-       if (1 > sscanf(event.u.robot.data, "Version %d", &robotVersion)
-                       || robotVersion < 1)
-               fatal("Invalid Version line from robot");
-       if (robotVersion > ROBOT_VERSION)
-               robotVersion = ROBOT_VERSION;
-}
-
-ExtFunc void CatchPipe(int sig)
-{
-       robotGen.ready = gotSigPipe = 1;
-}
-
-ExtFunc void RobotCmd(int flush, char *fmt, ...)
-{
-       va_list args;
-
-       va_start(args, fmt);
-       vfprintf(toRobot, fmt, args);
-       va_end(args);
-       if (flush)
-               fflush(toRobot);
-}
-
-ExtFunc void RobotTimeStamp(void)
-{
-       RobotCmd(1, "TimeStamp %.3f\n", CurTimeval() / 1.0e6);
-}
-
-ExtFunc void CloseRobot(void)
-{
-       RemoveEventGen(&robotGen);
-       if (robotProcess > 0)
-               RobotCmd(1, "Exit\n");
-       fclose(toRobot);
-       close(fromRobotFd);
-}
-
-static MyEventType RobotGenFunc(EventGenRec *gen, MyEvent *event)
-{
-       static int more;
-       int result, i;
-       char *p;
-
-       if (gotSigPipe) {
-               gotSigPipe = 0;
-               robotGen.ready = more;
-               return E_lostRobot;
-       }
-       if (robotBufMsg > 0) {
-               /*
-                *      Grrrrrr!  SunOS 4.1 doesn't have memmove (or atexit)
-                *  I'm told some others have a broken memmove
-                *
-                *      memmove(robotBuf, robotBuf + robotBufMsg,
-                *                      robotBufSize - robotBufMsg);
-                */
-               for (i = robotBufMsg; i < robotBufSize; ++i)
-                       robotBuf[i - robotBufMsg] = robotBuf[i];
-
-               robotBufSize -= robotBufMsg;
-               robotBufMsg = 0;
-       }
-       if (more)
-               more = 0;
-       else {
-               do {
-                       result = read(fromRobotFd, robotBuf + robotBufSize,
-                                       sizeof(robotBuf) - robotBufSize);
-               } while (result < 0 && errno == EINTR);
-               if (result <= 0)
-                       return E_lostRobot;
-               robotBufSize += result;
-       }
-       if (!(p = memchr(robotBuf, '\n', robotBufSize))) {
-               if (robotBufSize >= sizeof(robotBuf))
-                       fatal("Line from robot is too long");
-               return E_none;
-       }
-       *p = 0;
-       robotBufMsg = p - robotBuf + 1;
-       robotGen.ready = more = (memchr(robotBuf + robotBufMsg, '\n',
-                       robotBufSize - robotBufMsg) != NULL);
-       event->u.robot.size = p - robotBuf;
-       event->u.robot.data = robotBuf;
-       return E_robot;
-}
-
-/*
- * vi: ts=4 ai
- * vim: noai si
- */