dedicated_v.cpp

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00001 /* $Id: dedicated_v.cpp 15299 2009-01-31 20:16:06Z smatz $ */
00002 
00005 #include "../stdafx.h"
00006 
00007 #ifdef ENABLE_NETWORK
00008 
00009 #include "../openttd.h"
00010 #include "../gfx_func.h"
00011 #include "../network/network_internal.h"
00012 #include "../console_func.h"
00013 #include "../variables.h"
00014 #include "../genworld.h"
00015 #include "../fileio_type.h"
00016 #include "../fios.h"
00017 #include "../blitter/factory.hpp"
00018 #include "../company_func.h"
00019 #include "../core/random_func.hpp"
00020 #include "dedicated_v.h"
00021 
00022 #ifdef BEOS_NET_SERVER
00023 #include <net/socket.h>
00024 #endif
00025 
00026 #ifdef __OS2__
00027 # include <sys/time.h> /* gettimeofday */
00028 # include <sys/types.h>
00029 # include <unistd.h>
00030 # include <conio.h>
00031 
00032 # define INCL_DOS
00033 # include <os2.h>
00034 
00035 # define STDIN 0  /* file descriptor for standard input */
00036 
00040 static void OS2_SwitchToConsoleMode()
00041 {
00042   PPIB pib;
00043   PTIB tib;
00044 
00045   DosGetInfoBlocks(&tib, &pib);
00046 
00047   // Change flag from PM to VIO
00048   pib->pib_ultype = 3;
00049 }
00050 #endif
00051 
00052 #if defined(UNIX) || defined(PSP)
00053 # include <sys/time.h> /* gettimeofday */
00054 # include <sys/types.h>
00055 # include <unistd.h>
00056 # include <signal.h>
00057 # define STDIN 0  /* file descriptor for standard input */
00058 # if defined(PSP)
00059 #   include <sys/fd_set.h>
00060 #   include <sys/select.h>
00061 # endif /* PSP */
00062 
00063 /* Signal handlers */
00064 static void DedicatedSignalHandler(int sig)
00065 {
00066   _exit_game = true;
00067   signal(sig, DedicatedSignalHandler);
00068 }
00069 #endif
00070 
00071 #if defined(WIN32)
00072 # include <windows.h> /* GetTickCount */
00073 # if !defined(WINCE)
00074 #  include <conio.h>
00075 # endif
00076 # include <time.h>
00077 # include <tchar.h>
00078 static HANDLE _hInputReady, _hWaitForInputHandling;
00079 static HANDLE _hThread; // Thread to close
00080 static char _win_console_thread_buffer[200];
00081 
00082 /* Windows Console thread. Just loop and signal when input has been received */
00083 static void WINAPI CheckForConsoleInput()
00084 {
00085 #if defined(WINCE)
00086   /* WinCE doesn't support console stuff */
00087   return;
00088 #else
00089   DWORD nb;
00090   HANDLE hStdin = GetStdHandle(STD_INPUT_HANDLE);
00091   while (true) {
00092     ReadFile(hStdin, _win_console_thread_buffer, lengthof(_win_console_thread_buffer), &nb, NULL);
00093     /* Signal input waiting that input is read and wait for it being handled
00094      * SignalObjectAndWait() should be used here, but it's unsupported in Win98< */
00095     SetEvent(_hInputReady);
00096     WaitForSingleObject(_hWaitForInputHandling, INFINITE);
00097   }
00098 #endif
00099 }
00100 
00101 static void CreateWindowsConsoleThread()
00102 {
00103   DWORD dwThreadId;
00104   /* Create event to signal when console input is ready */
00105   _hInputReady = CreateEvent(NULL, false, false, NULL);
00106   _hWaitForInputHandling = CreateEvent(NULL, false, false, NULL);
00107   if (_hInputReady == NULL || _hWaitForInputHandling == NULL) usererror("Cannot create console event!");
00108 
00109   _hThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)CheckForConsoleInput, NULL, 0, &dwThreadId);
00110   if (_hThread == NULL) usererror("Cannot create console thread!");
00111 
00112   DEBUG(driver, 2, "Windows console thread started");
00113 }
00114 
00115 static void CloseWindowsConsoleThread()
00116 {
00117   CloseHandle(_hThread);
00118   CloseHandle(_hInputReady);
00119   CloseHandle(_hWaitForInputHandling);
00120   DEBUG(driver, 2, "Windows console thread shut down");
00121 }
00122 
00123 #endif
00124 
00125 
00126 static void *_dedicated_video_mem;
00127 
00128 extern bool SafeSaveOrLoad(const char *filename, int mode, int newgm, Subdirectory subdir);
00129 extern void SwitchMode(int new_mode);
00130 
00131 static FVideoDriver_Dedicated iFVideoDriver_Dedicated;
00132 
00133 
00134 const char *VideoDriver_Dedicated::Start(const char * const *parm)
00135 {
00136   int bpp = BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth();
00137   if (bpp == 0) _dedicated_video_mem = NULL;
00138   else          _dedicated_video_mem = MallocT<byte>(_cur_resolution.width * _cur_resolution.height * (bpp / 8));
00139 
00140   _screen.width  = _screen.pitch = _cur_resolution.width;
00141   _screen.height = _cur_resolution.height;
00142   ScreenSizeChanged();
00143 
00144   SetDebugString("net=6");
00145 
00146 #if defined(WINCE)
00147   /* WinCE doesn't support console stuff */
00148 #elif defined(WIN32)
00149   // For win32 we need to allocate a console (debug mode does the same)
00150   CreateConsole();
00151   CreateWindowsConsoleThread();
00152   SetConsoleTitle(_T("OpenTTD Dedicated Server"));
00153 #endif
00154 
00155 #ifdef __OS2__
00156   // For OS/2 we also need to switch to console mode instead of PM mode
00157   OS2_SwitchToConsoleMode();
00158 #endif
00159 
00160   DEBUG(driver, 1, "Loading dedicated server");
00161   return NULL;
00162 }
00163 
00164 void VideoDriver_Dedicated::Stop()
00165 {
00166 #ifdef WIN32
00167   CloseWindowsConsoleThread();
00168 #endif
00169   free(_dedicated_video_mem);
00170 }
00171 
00172 void VideoDriver_Dedicated::MakeDirty(int left, int top, int width, int height) {}
00173 bool VideoDriver_Dedicated::ChangeResolution(int w, int h) { return false; }
00174 bool VideoDriver_Dedicated::ToggleFullscreen(bool fs) { return false; }
00175 
00176 #if defined(UNIX) || defined(__OS2__) || defined(PSP)
00177 static bool InputWaiting()
00178 {
00179   struct timeval tv;
00180   fd_set readfds;
00181 
00182   tv.tv_sec = 0;
00183   tv.tv_usec = 1;
00184 
00185   FD_ZERO(&readfds);
00186   FD_SET(STDIN, &readfds);
00187 
00188   /* don't care about writefds and exceptfds: */
00189   return select(STDIN + 1, &readfds, NULL, NULL, &tv) > 0;
00190 }
00191 
00192 static uint32 GetTime()
00193 {
00194   struct timeval tim;
00195 
00196   gettimeofday(&tim, NULL);
00197   return tim.tv_usec / 1000 + tim.tv_sec * 1000;
00198 }
00199 
00200 #else
00201 
00202 static bool InputWaiting()
00203 {
00204   return WaitForSingleObject(_hInputReady, 1) == WAIT_OBJECT_0;
00205 }
00206 
00207 static uint32 GetTime()
00208 {
00209   return GetTickCount();
00210 }
00211 
00212 #endif
00213 
00214 static void DedicatedHandleKeyInput()
00215 {
00216   static char input_line[1024] = "";
00217 
00218   if (!InputWaiting()) return;
00219 
00220   if (_exit_game) return;
00221 
00222 #if defined(UNIX) || defined(__OS2__) || defined(PSP)
00223   if (fgets(input_line, lengthof(input_line), stdin) == NULL) return;
00224 #else
00225   /* Handle console input, and singal console thread, it can accept input again */
00226   assert_compile(lengthof(_win_console_thread_buffer) <= lengthof(input_line));
00227   strcpy(input_line, _win_console_thread_buffer);
00228   SetEvent(_hWaitForInputHandling);
00229 #endif
00230 
00231   /* strtok() does not 'forget' \r\n if the string starts with it,
00232    * so we have to manually remove that! */
00233   strtok(input_line, "\r\n");
00234   for (char *c = input_line; *c != '\0'; c++) {
00235     if (*c == '\n' || *c == '\r' || c == lastof(input_line)) {
00236       *c = '\0';
00237       break;
00238     }
00239   }
00240   str_validate(input_line);
00241 
00242   IConsoleCmdExec(input_line); // execute command
00243 }
00244 
00245 void VideoDriver_Dedicated::MainLoop()
00246 {
00247   uint32 cur_ticks = GetTime();
00248   uint32 next_tick = cur_ticks + 30;
00249 
00250   /* Signal handlers */
00251 #if defined(UNIX) || defined(PSP)
00252   signal(SIGTERM, DedicatedSignalHandler);
00253   signal(SIGINT, DedicatedSignalHandler);
00254   signal(SIGQUIT, DedicatedSignalHandler);
00255 #endif
00256 
00257   // Load the dedicated server stuff
00258   _is_network_server = true;
00259   _network_dedicated = true;
00260   _network_playas = COMPANY_SPECTATOR;
00261   _local_company = COMPANY_SPECTATOR;
00262 
00263   /* If SwitchMode is SM_LOAD, it means that the user used the '-g' options */
00264   if (_switch_mode != SM_LOAD) {
00265     StartNewGameWithoutGUI(GENERATE_NEW_SEED);
00266     SwitchMode(_switch_mode);
00267     _switch_mode = SM_NONE;
00268   } else {
00269     _switch_mode = SM_NONE;
00270     /* First we need to test if the savegame can be loaded, else we will end up playing the
00271      *  intro game... */
00272     if (!SafeSaveOrLoad(_file_to_saveload.name, _file_to_saveload.mode, GM_NORMAL, BASE_DIR)) {
00273       /* Loading failed, pop out.. */
00274       DEBUG(net, 0, "Loading requested map failed, aborting");
00275       _networking = false;
00276     } else {
00277       /* We can load this game, so go ahead */
00278       SwitchMode(SM_LOAD);
00279     }
00280   }
00281 
00282   // Done loading, start game!
00283 
00284   if (!_networking) {
00285     DEBUG(net, 0, "Dedicated server could not be started, aborting");
00286     return;
00287   }
00288 
00289   while (!_exit_game) {
00290     uint32 prev_cur_ticks = cur_ticks; // to check for wrapping
00291     InteractiveRandom(); // randomness
00292 
00293     if (!_dedicated_forks)
00294       DedicatedHandleKeyInput();
00295 
00296     cur_ticks = GetTime();
00297     _realtime_tick += cur_ticks - prev_cur_ticks;
00298     if (cur_ticks >= next_tick || cur_ticks < prev_cur_ticks) {
00299       next_tick = cur_ticks + 30;
00300 
00301       GameLoop();
00302       _screen.dst_ptr = _dedicated_video_mem;
00303       UpdateWindows();
00304     }
00305     CSleep(1);
00306   }
00307 }
00308 
00309 #endif /* ENABLE_NETWORK */

Generated on Mon Feb 16 23:12:12 2009 for openttd by  doxygen 1.5.6