Usermode/Applications/axwin4_src/Server/main.cpp

   1 /*
   2  * Acess2 GUI v4 (AxWin4)
   3  * - By John Hodge (thePowesGang)
   4  *
   5  * main.cpp
   6  * - Program main
   7  */
   8 #include <CConfig.hpp>
   9 #include <ipc.hpp>
  10 #include <input.hpp>
  11 #include <video.hpp>
  12 #include <CCompositor.hpp>
  13 #include <timing.hpp>
  14 #include <exception>
  15 #include <algorithm>
  16 #include <common.hpp>
  17
  18 #include <system_error>
  19 #include <cerrno>
  20
  21 extern "C" {
  22 #include <stdio.h>
  23 #include <stdint.h>
  24 };
  25
  26 using namespace AxWin;
  27
  28 // === CODE ===
  29 int main(int argc, char *argv[])
  30 {
  31         // - Load configuration (from file and argv)
  32         CConfig config;
  33         try {
  34                 config.parseCommandline(argc, argv);
  35         }
  36         catch(const std::exception& e) {
  37                 fprintf(stderr, "Exception: %s\n", e.what());
  38                 _SysDebug("Config threw exception: %s", e.what());
  39                 return 1;
  40         }
  41
  42         CVideo* vid = 0;
  43         CCompositor*    compositor = 0;
  44         CInput* input = 0;
  45
  46         try {
  47                 // - Open graphics
  48                 vid = new CVideo(config.m_video);
  49                 ::_SysDebug("vid = %p", vid);
  50                 // - Initialise compositor structures
  51                 compositor = new CCompositor(/*config.m_compositor,*/ *vid);
  52                 ::_SysDebug("compositor = %p", compositor);
  53                 // - Open input
  54                 input = new CInput(config.m_input, *compositor);
  55                 ::_SysDebug("input = %p", input);
  56                 //  > Handles hotkeys?
  57                 // - Bind IPC channels
  58                 IPC::Initialise(config.m_ipc, *compositor);
  59                 ::_SysDebug("IPC up");
  60                 // - Start root child process (from config)
  61                 // TODO: Spin up child process
  62
  63                 {
  64                         const char *interface_app = "/Acess/Apps/AxWin/4.0/AxWinUI";
  65                         const char *argv[] = {interface_app, NULL};
  66                          int    rv = _SysSpawn(interface_app, argv, NULL, 0, NULL, NULL);
  67                         if( rv < 0 ) {
  68                                 _SysDebug("_SysSpawn chucked a sad, rv=%i, errno=%i", rv, _errno);
  69                                 throw ::std::system_error(errno, ::std::system_category());
  70                         }
  71                 }
  72         }
  73         catch(const ::std::exception& e) {
  74                 fprintf(stderr, "Startup threw exception: %s\n", e.what());
  75                 _SysDebug("Startup threw exception: %s", e.what());
  76                 delete input;
  77                 delete compositor;
  78                 delete vid;
  79                 return 1;
  80         }
  81
  82         // - Event loop
  83         for( ;; )
  84         {
  85                  int    nfd = 0;
  86                 fd_set  rfds, efds;
  87
  88                 FD_ZERO(&rfds);
  89                 FD_ZERO(&efds);
  90
  91                 nfd = ::std::max(nfd, input->FillSelect(rfds));
  92                 nfd = ::std::max(nfd, IPC::FillSelect(rfds));
  93
  94                 for( int i = 0; i < nfd; i ++ )
  95                         if( FD_ISSET(i, &rfds) )
  96                                 FD_SET(i, &efds);
  97
  98                 #if 0
  99                 for( int i = 0; i < nfd; i ++ ) {
 100                         if( FD_ISSET(i, &rfds) ) {
 101                                 _SysDebug("FD%i", i);
 102                         }
 103                 }
 104                 #endif
 105
 106                 // TODO: Support _SysSendMessage IPC?
 107                 int64_t timeout = Timing::GetTimeToNextEvent();
 108                 int64_t *timeoutp;
 109                 if( timeout >= 0 ) {
 110                         ::_SysDebug("Calling select with timeout %lli", timeout);
 111                         timeoutp = &timeout;
 112                 }
 113                 else {
 114                         //::_SysDebug("Calling select with no timeout");
 115                         timeoutp = 0;
 116                 }
 117                 int rv = ::_SysSelect(nfd, &rfds, NULL, NULL/*&efds*/, timeoutp, 0);
 118
 119                 #if 0
 120                 for( int i = 0; i < nfd; i ++ ) {
 121                         if( FD_ISSET(i, &rfds) ) {
 122                                 _SysDebug("FD%i", i);
 123                         }
 124                 }
 125                 #endif
 126                 //_SysDebug("rv=%i, timeout=%lli", rv, timeout);
 127
 128                 try {
 129                         Timing::CheckEvents();
 130
 131                         input->HandleSelect(rfds);
 132                         IPC::HandleSelect(rfds);
 133
 134                         compositor->Redraw();
 135                 }
 136                 catch(...) {
 137                         ::_SysDebug("Exception during select handling");
 138                 }
 139         }
 140         return 0;
 141 }
 142
 143 namespace AxWin {
 144
 145 const char* InitFailure::what() const throw()
 146 {
 147         return m_what;
 148 }
 149
 150
 151 }
 152