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dedicated/sys_linux.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+// $NoKeywords: $
+//=============================================================================//
+
+
+#include <unistd.h>
+#include <string.h>
+#include <dlfcn.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <malloc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+#include "isys.h"
+#include "console/conproc.h"
+#include "dedicated.h"
+#include "engine_hlds_api.h"
+#include "checksum_md5.h"
+#include "idedicatedexports.h"
+#include "tier0/vcrmode.h"
+#include "tier0/dbg.h"
+#include "mathlib/mathlib.h"
+#include "interface.h"
+#include "tier1/strtools.h"
+#include "tier0/icommandline.h"
+#include "materialsystem/imaterialsystem.h"
+#include "istudiorender.h"
+#include "SoundEmitterSystem/isoundemittersystembase.h"
+#include "datacache/idatacache.h"
+#include "datacache/imdlcache.h"
+#include "vphysics_interface.h"
+#include "icvar.h"
+#include "filesystem/IQueuedLoader.h"
+#include "console/TextConsoleUnix.h"
+
+bool InitInstance( );
+
+char g_szEXEName[ MAX_PATH ];
+
+extern CTextConsoleUnix console;
+
+//-----------------------------------------------------------------------------
+// Purpose: Implements OS Specific layer ( loosely )
+//-----------------------------------------------------------------------------
+class CSys : public ISys
+{
+public:
+	virtual		~CSys();
+
+	virtual bool LoadModules( CDedicatedAppSystemGroup *pAppSystemGroup );
+
+	void		Sleep( int msec );
+	bool		GetExecutableName( char *out );
+	void		ErrorMessage( int level, const char *msg );
+
+	void		WriteStatusText( char *szText );
+	void		UpdateStatus( int force );
+
+	long		LoadLibrary( char *lib );
+	void		FreeLibrary( long library );
+	void		*GetProcAddress( long library, const char *name );
+
+	bool		CreateConsoleWindow( void );
+	void		DestroyConsoleWindow( void );
+
+	void		ConsoleOutput ( char *string );
+	char		*ConsoleInput ( int index, char *buf, int buflen );
+	void		Printf( const char *fmt, ...);
+};
+
+static CSys g_Sys;
+ISys *sys = &g_Sys;
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+CSys::~CSys()
+{
+	sys = NULL;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input  : msec
+// Output : 
+//-----------------------------------------------------------------------------
+void CSys::Sleep( int msec )
+{
+	usleep(msec * 1000);
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input  : handle, function name-
+// Output : void *
+//-----------------------------------------------------------------------------
+void *CSys::GetProcAddress( long library, const char *name )
+{
+	return dlsym( library, name );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input  : *lib -
+// Output : long
+//-----------------------------------------------------------------------------
+long CSys::LoadLibrary( char *lib )
+{
+	void *hDll = NULL;
+
+	char cwd[1024];
+	char absolute_lib[1024];
+
+	if (!getcwd(cwd, sizeof(cwd)))
+		ErrorMessage(1, "Sys_LoadLibrary: Couldn't determine current directory.");
+
+	if (cwd[strlen(cwd)-1] == '/')
+		cwd[strlen(cwd)-1] = 0;
+
+	Q_snprintf(absolute_lib, sizeof( absolute_lib ), "%s/%s", cwd, lib);
+
+	hDll = dlopen( absolute_lib, RTLD_NOW );
+	if ( !hDll )
+	{
+		ErrorMessage( 1, dlerror() );
+	}
+	return (long)hDll;
+}
+
+void CSys::FreeLibrary( long library )
+{
+	if ( !library )
+		return;
+
+	dlclose( (void *)library );
+}
+
+bool CSys::GetExecutableName( char *out )
+{
+	char *name = strrchr(g_szEXEName, '/' );
+	if ( name )
+	{
+		strcpy( out, name + 1);
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+/*
+==============
+ErrorMessage
+
+Engine is erroring out, display error in message box
+==============
+*/
+void CSys::ErrorMessage( int level, const char *msg )
+{
+	Error( "%s\n", msg );
+	exit( -1 );
+}
+
+void CSys::UpdateStatus( int force )
+{
+}
+
+/*
+================
+ConsoleOutput
+
+Print text to the dedicated console
+================
+*/
+void CSys::ConsoleOutput (char *string)
+{
+	console.Print(string);
+}
+
+/*
+==============
+Printf
+
+Engine is printing to console
+==============
+*/
+void CSys::Printf( const char *fmt, ...)
+{
+	// Dump text to debugging console.
+	va_list argptr;
+	char szText[1024];
+
+	va_start (argptr, fmt);
+	Q_vsnprintf (szText, sizeof( szText ), fmt, argptr);
+	va_end (argptr);
+
+	// Get Current text and append it.
+	ConsoleOutput( szText );
+}
+
+/*
+================
+ConsoleInput
+
+================
+*/
+char *CSys::ConsoleInput( int index, char *buf, int buflen )
+{
+	return console.GetLine( index, buf, buflen );
+}
+
+/*
+==============
+WriteStatusText
+
+==============
+*/
+void CSys::WriteStatusText( char *szText )
+{
+}
+
+/*
+==============
+CreateConsoleWindow
+
+Create console window ( overridable? )
+==============
+*/
+bool CSys::CreateConsoleWindow( void )
+{
+	return true;
+}
+
+/*
+==============
+DestroyConsoleWindow
+
+==============
+*/
+void CSys::DestroyConsoleWindow( void )
+{
+}
+
+/*
+================
+GameInit
+================
+*/
+bool CSys::LoadModules( CDedicatedAppSystemGroup *pAppSystemGroup )
+{
+	AppSystemInfo_t appSystems[] = 
+	{
+ 		{ "engine" DLL_EXT_STRING,				CVAR_QUERY_INTERFACE_VERSION },
+		{ "soundemittersystem" DLL_EXT_STRING,	SOUNDEMITTERSYSTEM_INTERFACE_VERSION }, // loaded for backwards compatability, prevents crash on exit for old game dlls
+		{ "materialsystem" DLL_EXT_STRING,		MATERIAL_SYSTEM_INTERFACE_VERSION },
+		{ "studiorender" DLL_EXT_STRING,		STUDIO_RENDER_INTERFACE_VERSION },
+		{ "vphysics" DLL_EXT_STRING,			VPHYSICS_INTERFACE_VERSION },
+		{ "datacache" DLL_EXT_STRING,			DATACACHE_INTERFACE_VERSION },
+		{ "datacache" DLL_EXT_STRING,			MDLCACHE_INTERFACE_VERSION },
+		{ "datacache" DLL_EXT_STRING,			STUDIO_DATA_CACHE_INTERFACE_VERSION },
+		{ "dedicated" DLL_EXT_STRING,			QUEUEDLOADER_INTERFACE_VERSION },
+		{ "engine" DLL_EXT_STRING,				VENGINE_HLDS_API_VERSION },
+		{ "", "" }	// Required to terminate the list
+	};
+
+	if ( !pAppSystemGroup->AddSystems( appSystems ) ) 
+		return false;
+
+	engine = (IDedicatedServerAPI *)pAppSystemGroup->FindSystem( VENGINE_HLDS_API_VERSION );
+	// obsolete i think SetCVarIF( (ICvar*)pAppSystemGroup->FindSystem( VENGINE_CVAR_INTERFACE_VERSION ) );
+
+	IMaterialSystem* pMaterialSystem = (IMaterialSystem*)pAppSystemGroup->FindSystem( MATERIAL_SYSTEM_INTERFACE_VERSION );
+	pMaterialSystem->SetShaderAPI( "shaderapiempty" DLL_EXT_STRING );	
+	return true;
+}
+
+bool NET_Init()
+{
+	return true;
+}
+
+void NET_Shutdown()
+{
+}
+
+extern int main(int argc, char *argv[]);
+DLL_EXPORT int DedicatedMain( int argc, char *argv[] );
+
+int DedicatedMain( int argc, char *argv[] )
+{
+	return main(argc,argv);
+}