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
  37         COM_InitArgv();
  38         COM_InitGameType();
  39
  40 #if defined(__linux__)
  41         os = "Linux";
  42 #elif defined(WIN32)
  43         os = "Windows";
  44 #elif defined(__FreeBSD__)
  45         os = "FreeBSD";
  46 #elif defined(__NetBSD__)
  47         os = "NetBSD";
  48 #elif defined(__OpenBSD__)
  49         os = "OpenBSD";
  50 #else
  51         os = "Unknown";
  52 #endif
  53         snprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
  54
  55 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
  56         if (COM_CheckParm("-nostdout"))
  57                 sys_nostdout = 1;
  58         else
  59                 Con_Printf("%s\n", engineversion);
  60 }
  61
  62 void Sys_Shared_LateInit(void)
  63 {
  64 }
  65
  66 /*
  67 ===============================================================================
  68
  69 DLL MANAGEMENT
  70
  71 ===============================================================================
  72 */
  73
  74 qboolean Sys_LoadLibrary (const char* dllname, dllhandle_t* handle, const dllfunction_t *fcts)
  75 {
  76         const dllfunction_t *func;
  77         dllhandle_t dllhandle;
  78
  79         if (handle == NULL)
  80                 return false;
  81
  82         // Initializations
  83         for (func = fcts; func && func->name != NULL; func++)
  84                 *func->funcvariable = NULL;
  85
  86         // Load the DLL
  87 #ifdef WIN32
  88         dllhandle = LoadLibrary (dllname);
  89 #else
  90         dllhandle = dlopen (dllname, RTLD_LAZY);
  91 #endif
  92         if (! dllhandle)
  93         {
  94                 Con_Printf ("Can't load \"%s\".\n", dllname);
  95                 return false;
  96         }
  97
  98         // Get the function adresses
  99         for (func = fcts; func && func->name != NULL; func++)
 100                 if (!(*func->funcvariable = (void *) Sys_GetProcAddress (dllhandle, func->name)))
 101                 {
 102                         Con_Printf ("Missing function \"%s\" - broken library!\n", func->name);
 103                         Sys_UnloadLibrary (&dllhandle);
 104                         return false;
 105                 }
 106
 107         *handle = dllhandle;
 108         Con_Printf("\"%s\" loaded.\n", dllname);
 109         return true;
 110 }
 111
 112 void Sys_UnloadLibrary (dllhandle_t* handle)
 113 {
 114         if (handle == NULL || *handle == NULL)
 115                 return;
 116
 117 #ifdef WIN32
 118         FreeLibrary (*handle);
 119 #else
 120         dlclose (*handle);
 121 #endif
 122
 123         *handle = NULL;
 124 }
 125
 126 void* Sys_GetProcAddress (dllhandle_t handle, const char* name)
 127 {
 128 #ifdef WIN32
 129         return (void *)GetProcAddress (handle, name);
 130 #else
 131         return (void *)dlsym (handle, name);
 132 #endif
 133 }
 134