sys_shared.c

   1
   2 #include "quakedef.h"
   3 # include <time.h>
   4 #ifndef WIN32
   5 # include <unistd.h>
   6 # include <fcntl.h>
   7 # include <dlfcn.h>
   8 #endif
   9
  10 qboolean sys_nostdout = false;
  11
  12 static char sys_timestring[128];
  13 char *Sys_TimeString(const char *timeformat)
  14 {
  15         time_t mytime = time(NULL);
  16         strftime(sys_timestring, sizeof(sys_timestring), timeformat, localtime(&mytime));
  17         return sys_timestring;
  18 }
  19
  20
  21 extern qboolean host_shuttingdown;
  22 void Sys_Quit (void)
  23 {
  24         host_shuttingdown = true;
  25         Host_Shutdown();
  26         exit(0);
  27 }
  28
  29 char engineversion[128];
  30
  31 void Sys_Shared_EarlyInit(void)
  32 {
  33         const char* os;
  34
  35         Memory_Init ();
  36         Log_Init ();
  37
  38         COM_InitArgv();
  39         COM_InitGameType();
  40
  41 #if defined(__linux__)
  42         os = "Linux";
  43 #elif defined(WIN32)
  44         os = "Windows";
  45 #elif defined(__FreeBSD__)
  46         os = "FreeBSD";
  47 #elif defined(__NetBSD__)
  48         os = "NetBSD";
  49 #elif defined(__OpenBSD__)
  50         os = "OpenBSD";
  51 #elif defined(MACOSX)
  52         os = "Mac OS X";
  53 #else
  54         os = "Unknown";
  55 #endif
  56         dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
  57
  58 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
  59         if (COM_CheckParm("-nostdout"))
  60                 sys_nostdout = 1;
  61         else
  62                 Con_Printf("%s\n", engineversion);
  63 }
  64
  65 void Sys_Shared_LateInit(void)
  66 {
  67 }
  68
  69 /*
  70 ===============================================================================
  71
  72 DLL MANAGEMENT
  73
  74 ===============================================================================
  75 */
  76
  77 qboolean Sys_LoadLibrary (const char** dllnames, dllhandle_t* handle, const dllfunction_t *fcts)
  78 {
  79         const dllfunction_t *func;
  80         dllhandle_t dllhandle = 0;
  81         unsigned int i;
  82
  83         if (handle == NULL)
  84                 return false;
  85
  86         // Initializations
  87         for (func = fcts; func && func->name != NULL; func++)
  88                 *func->funcvariable = NULL;
  89
  90         // Try every possible name
  91         for (i = 0; dllnames[i] != NULL; i++)
  92         {
  93 #ifdef WIN32
  94                 dllhandle = LoadLibrary (dllnames[i]);
  95 #else
  96                 dllhandle = dlopen (dllnames[i], RTLD_LAZY);
  97 #endif
  98                 if (dllhandle)
  99                         break;
 100
 101                 Con_Printf ("Can't load \"%s\".\n", dllnames[i]);
 102         }
 103
 104         // No DLL found
 105         if (! dllhandle)
 106                 return false;
 107
 108         Con_Printf("\"%s\" loaded.\n", dllnames[i]);
 109
 110         // Get the function adresses
 111         for (func = fcts; func && func->name != NULL; func++)
 112                 if (!(*func->funcvariable = (void *) Sys_GetProcAddress (dllhandle, func->name)))
 113                 {
 114                         Con_Printf ("Missing function \"%s\" - broken library!\n", func->name);
 115                         Sys_UnloadLibrary (&dllhandle);
 116                         return false;
 117                 }
 118
 119         *handle = dllhandle;
 120         return true;
 121 }
 122
 123 void Sys_UnloadLibrary (dllhandle_t* handle)
 124 {
 125         if (handle == NULL || *handle == NULL)
 126                 return;
 127
 128 #ifdef WIN32
 129         FreeLibrary (*handle);
 130 #else
 131         dlclose (*handle);
 132 #endif
 133
 134         *handle = NULL;
 135 }
 136
 137 void* Sys_GetProcAddress (dllhandle_t handle, const char* name)
 138 {
 139 #ifdef WIN32
 140         return (void *)GetProcAddress (handle, name);
 141 #else
 142         return (void *)dlsym (handle, name);
 143 #endif
 144 }
 145