Clean up all the system shutdown calls

I added Sys_RegisterShutdown years ago and never really did anything
with it: now any system that needs to be shutdown can ensure it gets
shutdown on program exit, and in the correct order (ie, reverse to init
order).

hw/source/master.c

@@ -471,11 +471,8 @@ SV_WriteFilterList (void)
 static void
 SV_Shutdown (void)
 {
-	NET_Shutdown ();
-
 	// write filter list
 	SV_WriteFilterList ();
-	Con_Shutdown ();
 }
 
 static void

include/QF/cdaudio.h

@@ -35,7 +35,6 @@ void CDAudio_Play(int track, qboolean looping);
 void CDAudio_Stop(void);
 void CDAudio_Pause(void);
 void CDAudio_Resume(void);
-void CDAudio_Shutdown(void);
 void CDAudio_Update(void);
 
 #endif // _CDAUDIO_H

include/QF/console.h

@@ -119,7 +119,6 @@ void Con_BufferAddText (con_buffer_t *buf, const char *text);
 
 // init/shutdown functions
 void Con_Init (const char *plugin_name);
-void Con_Shutdown (void);
 void Con_ExecLine (const char *line);
 
 void Con_ProcessInput (void);

include/QF/input.h

@@ -44,8 +44,6 @@ struct cvar_s;
 void IN_Init (struct cbuf_s *cbuf);
 void IN_Init_Cvars (void);
 
-void IN_Shutdown (void);
-
 void IN_ProcessEvents (void);
 
 void IN_UpdateGrab (struct cvar_s *);

include/QF/sound.h

@@ -81,10 +81,6 @@ void S_Init (int *viewentity, double *host_frametime);
 */
 void S_Init_Cvars (void);
 
-/** Shutdown the sound engine. Allows audio output modules to shutdown
-	gracefully.
-*/
-void S_Shutdown (void);
 //@}
 
 /** \defgroup sound_stuff Unclassified

include/QF/vid.h

@@ -76,7 +76,6 @@ void VID_Init_Cvars (void);
 // the palette data will go away after the call, so it must be copied off if
 // the video driver will need it again
 void VID_Init (byte *palette, byte *colormap);
-void VID_Shutdown (void);
 void VID_SetCaption (const char *text);
 void VID_ClearMemory (void);
 

include/netchan.h

@@ -90,10 +90,6 @@ extern struct cvar_s *net_packetlog;
 */
 void NET_Init (int port);
 
-/** Shutdown the UDP network interface.
-*/
-void NET_Shutdown (void);
-
 /** Read a single packet from the network into net_message.
 
 	\return			True if successfully read, otherwise false.

include/netmain.h

@@ -273,10 +273,6 @@ extern	int			net_activeconnections;
 */
 void		NET_Init (void);
 
-/** Shutdown the networking sub-system.
-*/
-void		NET_Shutdown (void);
-
 /** Check for new connections.
 
 	\return			Pointer to the qsocket for the new connection if there

libs/audio/cd.c

@@ -69,8 +69,8 @@ CDAudio_Resume (void)
 		cdmodule->functions->cd->pCDAudio_Resume ();
 }
 
-VISIBLE void
-CDAudio_Shutdown (void)
+static void
+CDAudio_shutdown (void)
 {
 	if (cdmodule)
 		cdmodule->functions->general->p_Shutdown ();
@@ -93,6 +93,8 @@ CD_f (void)
 VISIBLE int
 CDAudio_Init (void)
 {
+	Sys_RegisterShutdown (CDAudio_shutdown);
+
 	PI_RegisterPlugins (cd_plugin_list);
 	cd_plugin = Cvar_Get ("cd_plugin", CD_DEFAULT, CVAR_ROM, NULL,
 						  "CD Plugin to use");

libs/audio/snd.c

@@ -53,6 +53,19 @@ static plugin_list_t snd_render_list[] = {
 	SND_RENDER_PLUGIN_LIST
 };
 
+static void
+S_shutdown (void)
+{
+	if (snd_render_module) {
+		PI_UnloadPlugin (snd_render_module);
+		snd_render_module = NULL;
+		snd_render_funcs = NULL;
+	}
+	if (snd_output_module) {
+		PI_UnloadPlugin (snd_output_module);
+		snd_output_module = NULL;
+	}
+}
 
 VISIBLE void
 S_Init (int *viewentity, double *host_frametime)
@@ -65,6 +78,8 @@ S_Init (int *viewentity, double *host_frametime)
 		return;
 	}
 
+	Sys_RegisterShutdown (S_shutdown);
+
 	PI_RegisterPlugins (snd_output_list);
 	PI_RegisterPlugins (snd_render_list);
 	snd_output_module = PI_LoadPlugin ("snd_output", snd_output->string);
@@ -120,20 +135,6 @@ S_AmbientOn (void)
 		snd_render_funcs->pS_AmbientOn ();
 }
 
-VISIBLE void
-S_Shutdown (void)
-{
-	if (snd_render_module) {
-		PI_UnloadPlugin (snd_render_module);
-		snd_render_module = NULL;
-		snd_render_funcs = NULL;
-	}
-	if (snd_output_module) {
-		PI_UnloadPlugin (snd_output_module);
-		snd_output_module = NULL;
-	}
-}
-
 VISIBLE void
 S_StaticSound (sfx_t *sfx, const vec3_t origin, float vol, float attenuation)
 {

libs/audio/targets/snd_alsa.c

@@ -463,7 +463,7 @@ SNDDMA_GetDMAPos (void)
 }
 
 static void
-SNDDMA_Shutdown (void)
+SNDDMA_shutdown (void)
 {
 	if (snd_inited) {
 		qfsnd_pcm_close (pcm);
@@ -549,7 +549,7 @@ PLUGIN_INFO(snd_output, alsa)
 	plugin_info_general_funcs.p_Init = SNDDMA_Init_Cvars;
 	plugin_info_general_funcs.p_Shutdown = NULL;
 	plugin_info_snd_output_funcs.pS_O_Init = SNDDMA_Init;
-	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_Shutdown;
+	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_shutdown;
 	plugin_info_snd_output_funcs.pS_O_GetDMAPos = SNDDMA_GetDMAPos;
 	plugin_info_snd_output_funcs.pS_O_Submit = SNDDMA_Submit;
 	plugin_info_snd_output_funcs.pS_O_BlockSound = SNDDMA_BlockSound;

libs/audio/targets/snd_disk.c

@@ -108,7 +108,7 @@ SNDDMA_GetDMAPos (void)
 }
 
 static void
-SNDDMA_Shutdown (void)
+SNDDMA_shutdown (void)
 {
 	if (snd_inited) {
 		Qclose (snd_file);
@@ -174,7 +174,7 @@ PLUGIN_INFO(snd_output, disk)
 	plugin_info_general_funcs.p_Init = SNDDMA_Init_Cvars;
 	plugin_info_general_funcs.p_Shutdown = NULL;
 	plugin_info_snd_output_funcs.pS_O_Init = SNDDMA_Init;
-	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_Shutdown;
+	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_shutdown;
 	plugin_info_snd_output_funcs.pS_O_GetDMAPos = SNDDMA_GetDMAPos;
 	plugin_info_snd_output_funcs.pS_O_Submit = SNDDMA_Submit;
 	plugin_info_snd_output_funcs.pS_O_BlockSound = SNDDMA_BlockSound;

libs/audio/targets/snd_dx.c

@@ -417,13 +417,8 @@ SNDDMA_Submit (void)
 	DSOUND_LockBuffer (false);
 }
 
-/*
-	SNDDMA_Shutdown
-
-	Reset the sound device for exiting
-*/
 static void
-SNDDMA_Shutdown (void)
+SNDDMA_shutdown (void)
 {
 	FreeSound ();
 }
@@ -450,7 +445,7 @@ DSOUND_LockBuffer (qboolean lockit)
 			if (hresult != DSERR_BUFFERLOST) {
 				Sys_Printf
 					("S_TransferStereo16: DS::Lock Sound Buffer Failed\n");
-				SNDDMA_Shutdown ();
+				SNDDMA_shutdown ();
 				SNDDMA_Init ();
 				return NULL;
 			}
@@ -458,7 +453,7 @@ DSOUND_LockBuffer (qboolean lockit)
 			if (++reps > 10000) {
 				Sys_Printf
 					("S_TransferStereo16: DS: couldn't restore buffer\n");
-				SNDDMA_Shutdown ();
+				SNDDMA_shutdown ();
 				SNDDMA_Init ();
 				return NULL;
 			}
@@ -529,7 +524,7 @@ PLUGIN_INFO(snd_output, dx)
 	plugin_info_general_funcs.p_Init = SNDDMA_Init_Cvars;
 	plugin_info_general_funcs.p_Shutdown = NULL;
 	plugin_info_snd_output_funcs.pS_O_Init = SNDDMA_Init;
-	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_Shutdown;
+	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_shutdown;
 	plugin_info_snd_output_funcs.pS_O_GetDMAPos = SNDDMA_GetDMAPos;
 	plugin_info_snd_output_funcs.pS_O_Submit = SNDDMA_Submit;
 	plugin_info_snd_output_funcs.pS_O_BlockSound = SNDDMA_BlockSound;

libs/audio/targets/snd_oss.c

@@ -331,7 +331,7 @@ SNDDMA_GetDMAPos (void)
 }
 
 static void
-SNDDMA_Shutdown (void)
+SNDDMA_shutdown (void)
 {
 	if (snd_inited) {
 		if (mmaped_io)
@@ -413,7 +413,7 @@ PLUGIN_INFO(snd_output, oss)
 	plugin_info_general_funcs.p_Init = SNDDMA_Init_Cvars;
 	plugin_info_general_funcs.p_Shutdown = NULL;
 	plugin_info_snd_output_funcs.pS_O_Init = SNDDMA_Init;
-	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_Shutdown;
+	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_shutdown;
 	plugin_info_snd_output_funcs.pS_O_GetDMAPos = SNDDMA_GetDMAPos;
 	plugin_info_snd_output_funcs.pS_O_Submit = SNDDMA_Submit;
 	plugin_info_snd_output_funcs.pS_O_BlockSound = SNDDMA_BlockSound;

libs/audio/targets/snd_sdl.c

@@ -206,7 +206,7 @@ SNDDMA_GetDMAPos (void)
 }
 
 static void
-SNDDMA_Shutdown (void)
+SNDDMA_shutdown (void)
 {
 	if (snd_inited) {
 		SDL_CloseAudio ();
@@ -297,7 +297,7 @@ PLUGIN_INFO(snd_output, sdl)
 	plugin_info_general_funcs.p_Init = SNDDMA_Init_Cvars;
 	plugin_info_general_funcs.p_Shutdown = NULL;
 	plugin_info_snd_output_funcs.pS_O_Init = SNDDMA_Init;
-	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_Shutdown;
+	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_shutdown;
 	plugin_info_snd_output_funcs.pS_O_GetDMAPos = SNDDMA_GetDMAPos;
 	plugin_info_snd_output_funcs.pS_O_Submit = SNDDMA_Submit;
 	plugin_info_snd_output_funcs.pS_O_BlockSound = SNDDMA_BlockSound;

libs/audio/targets/snd_sgi.c

@@ -269,7 +269,7 @@ SNDDMA_GetDMAPos (void)
 }
 
 static void
-SNDDMA_Shutdown (void)
+SNDDMA_shutdown (void)
 {
 	if (snd_inited) {
 		free (write_buffer);
@@ -357,7 +357,7 @@ PLUGIN_INFO(snd_output, sgi)
 	plugin_info_general_funcs.p_Init = SNDDMA_Init_Cvars;
 	plugin_info_general_funcs.p_Shutdown = NULL;
 	plugin_info_snd_output_funcs.pS_O_Init = SNDDMA_Init;
-	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_Shutdown;
+	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_shutdown;
 	plugin_info_snd_output_funcs.pS_O_GetDMAPos = SNDDMA_GetDMAPos;
 	plugin_info_snd_output_funcs.pS_O_Submit = SNDDMA_Submit;
 	plugin_info_snd_output_funcs.pS_O_BlockSound = SNDDMA_BlockSound;

libs/audio/targets/snd_sun.c

@@ -189,7 +189,7 @@ SNDDMA_GetSamples (void)
 }
 #endif
 static void
-SNDDMA_Shutdown (void)
+SNDDMA_shutdown (void)
 {
 	if (snd_inited) {
 		close (audio_fd);
@@ -281,7 +281,7 @@ PLUGIN_INFO(snd_output, sun)
 	plugin_info_general_funcs.p_Shutdown = NULL;
 
 	plugin_info_sound_funcs.pS_O_Init = SNDDMA_Init;
-	plugin_info_sound_funcs.pS_O_Shutdown = SNDDMA_Shutdown;
+	plugin_info_sound_funcs.pS_O_Shutdown = SNDDMA_shutdown;
 	plugin_info_sound_funcs.pS_O_GetDMAPos = SNDDMA_GetDMAPos;
 	plugin_info_sound_funcs.pS_O_Submit = SNDDMA_Submit;
 	plugin_info_sound_funcs.pS_O_BlockSound = SNDDMA_BlockSound;

libs/audio/targets/snd_win.c

@@ -344,13 +344,8 @@ SNDDMA_Submit (void)
 	}
 }
 
-/*
-	SNDDMA_Shutdown
-
-	Reset the sound device for exiting
-*/
 static void
-SNDDMA_Shutdown (void)
+SNDDMA_shutdown (void)
 {
 	FreeSound ();
 }
@@ -379,7 +374,7 @@ PLUGIN_INFO(snd_output, win)
 	plugin_info_general_funcs.p_Init = SNDDMA_Init_Cvars;
 	plugin_info_general_funcs.p_Shutdown = NULL;
 	plugin_info_snd_output_funcs.pS_O_Init = SNDDMA_Init;
-	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_Shutdown;
+	plugin_info_snd_output_funcs.pS_O_Shutdown = SNDDMA_shutdown;
 	plugin_info_snd_output_funcs.pS_O_GetDMAPos = SNDDMA_GetDMAPos;
 	plugin_info_snd_output_funcs.pS_O_Submit = SNDDMA_Submit;
 	plugin_info_snd_output_funcs.pS_O_BlockSound = SNDDMA_BlockSound;

libs/console/client.c

@@ -931,13 +931,13 @@ C_Init (void)
 }
 
 static void
-C_Shutdown (void)
+C_shutdown (void)
 {
 }
 
 static general_funcs_t plugin_info_general_funcs = {
 	C_Init,
-	C_Shutdown,
+	C_shutdown,
 };
 
 static console_funcs_t plugin_info_console_funcs = {

libs/console/console.c

@@ -84,9 +84,20 @@ Con_Interp_f (cvar_t *var)
 	}
 }
 
+static void
+Con_shutdown (void)
+{
+	if (con_module) {
+		con_module->functions->general->p_Shutdown ();
+		PI_UnloadPlugin (con_module);
+	}
+}
+
 VISIBLE void
 Con_Init (const char *plugin_name)
 {
+	Sys_RegisterShutdown (Con_shutdown);
+
 	con_module = PI_LoadPlugin ("console", plugin_name);
 	if (con_module) {
 		con_module->functions->general->p_Init ();
@@ -123,15 +134,6 @@ Con_ExecLine (const char *line)
 		Sys_Printf ("%s\n", line);
 }
 
-VISIBLE void
-Con_Shutdown (void)
-{
-	if (con_module) {
-		con_module->functions->general->p_Shutdown ();
-		PI_UnloadPlugin (con_module);
-	}
-}
-
 VISIBLE void
 Con_Printf (const char *fmt, ...)
 {

libs/console/server.c

@@ -696,7 +696,7 @@ C_Init (void)
 }
 
 static void
-C_Shutdown (void)
+C_shutdown (void)
 {
 	if (log_file) {
 		Qclose (log_file);
@@ -780,7 +780,7 @@ C_NewMap (void)
 
 static general_funcs_t plugin_info_general_funcs = {
 	C_Init,
-	C_Shutdown,
+	C_shutdown,
 };
 static general_data_t plugin_info_general_data;
 

libs/net/nc/net_udp.c

@@ -403,6 +403,17 @@ NET_GetLocalAddress (void)
 	Sys_Printf ("IP address %s\n", NET_AdrToString (net_local_adr));
 }
 
+static void
+NET_shutdown (void)
+{
+#ifdef _WIN32
+	closesocket (net_socket);
+	WSACleanup ();
+#else
+	close (net_socket);
+#endif
+}
+
 void
 NET_Init (int port)
 {
@@ -416,6 +427,7 @@ NET_Init (int port)
 	if (r)
 		Sys_Error ("Winsock initialization failed.");
 #endif /* _WIN32 */
+	Sys_RegisterShutdown (NET_shutdown);
 
 	net_socket = UDP_OpenSocket (port);
 
@@ -431,14 +443,3 @@ NET_Init (int port)
 
 	Sys_Printf ("UDP (IPv4) Initialized\n");
 }
-
-void
-NET_Shutdown (void)
-{
-#ifdef _WIN32
-	closesocket (net_socket);
-	WSACleanup ();
-#else
-	close (net_socket);
-#endif
-}

libs/net/nc/net_udp6.c

@@ -600,8 +600,8 @@ NET_Init (int port)
 	Sys_Printf ("UDP (IPv6) Initialized\n");
 }
 
-void
-NET_Shutdown (void)
+static void
+NET_shutdown (void)
 {
 #ifdef _WIN32
 	closesocket (net_socket);

libs/net/net_main.c

@@ -718,6 +718,33 @@ NET_SendToAll (sizebuf_t *data, double blocktime)
 
 //=============================================================================
 
+static void
+NET_shutdown (void)
+{
+	qsocket_t  *sock;
+
+	SetNetTime ();
+
+	for (sock = net_activeSockets; sock; sock = sock->next)
+		NET_Close (sock);
+
+//
+// shutdown the drivers
+//
+	for (net_driverlevel = 0; net_driverlevel < net_numdrivers;
+		 net_driverlevel++) {
+		if (net_drivers[net_driverlevel].initialized == true) {
+			net_drivers[net_driverlevel].Shutdown ();
+			net_drivers[net_driverlevel].initialized = false;
+		}
+	}
+
+	if (vcrFile) {
+		Sys_Printf ("Closing vcrfile.\n");
+		Qclose (vcrFile);
+	}
+}
+
 void
 NET_Init (void)
 {
@@ -725,6 +752,8 @@ NET_Init (void)
 	int         controlSocket;
 	qsocket_t  *s;
 
+	Sys_RegisterShutdown (NET_shutdown);
+
 	if (COM_CheckParm ("-playback")) {
 		net_numdrivers = 1;
 		net_drivers[0].Init = VCR_Init;
@@ -790,33 +819,6 @@ NET_Init (void)
 		Sys_MaskPrintf (SYS_NET, "TCP/IP address %s\n", my_tcpip_address);
 }
 
-void
-NET_Shutdown (void)
-{
-	qsocket_t  *sock;
-
-	SetNetTime ();
-
-	for (sock = net_activeSockets; sock; sock = sock->next)
-		NET_Close (sock);
-
-//
-// shutdown the drivers
-//
-	for (net_driverlevel = 0; net_driverlevel < net_numdrivers;
-		 net_driverlevel++) {
-		if (net_drivers[net_driverlevel].initialized == true) {
-			net_drivers[net_driverlevel].Shutdown ();
-			net_drivers[net_driverlevel].initialized = false;
-		}
-	}
-
-	if (vcrFile) {
-		Sys_Printf ("Closing vcrfile.\n");
-		Qclose (vcrFile);
-	}
-}
-
 
 static PollProcedure *pollProcedureList = NULL;
 

libs/video/targets/context_sdl.c

@@ -53,12 +53,6 @@ VID_SetGamma (double gamma)
 	return SDL_SetGamma((float) gamma, (float) gamma, (float) gamma);
 }
 
-void
-VID_Shutdown (void)
-{
-	SDL_Quit ();
-}
-
 static void
 VID_UpdateFullscreen (cvar_t *vid_fullscreen)
 {

libs/video/targets/in_common.c

@@ -128,8 +128,8 @@ IN_Move (void)
 }
 
 /* Called at shutdown */
-void
-IN_Shutdown (void)
+static void
+IN_shutdown (void)
 {
 	JOY_Shutdown ();
 
@@ -142,6 +142,8 @@ IN_Shutdown (void)
 void
 IN_Init (cbuf_t *cbuf)
 {
+	Sys_RegisterShutdown (IN_shutdown);
+
 	IE_Init ();
 	IN_LL_Init ();
 	Key_Init (cbuf);

libs/video/targets/vid_3dfxsvga.c

@@ -150,8 +150,8 @@ QFGL_LoadLibrary (void)
 #endif  // HAVE_DLOPEN
 
 
-void
-VID_Shutdown (void)
+static void
+VID_shutdown (void)
 {
 	if (!fc)
 		return;
@@ -271,6 +271,8 @@ VID_Init (byte *palette, byte *colormap)
 {
 	GLint       attribs[32];
 
+	Sys_RegisterShutdown (VID_shutdown);
+
 	GLF_Init ();
 
 	qf_fxMesaCreateContext = QFGL_ProcAddress (libgl_handle,

libs/video/targets/vid_fbdev.c

@@ -209,8 +209,8 @@ static unsigned long fb_map_length = 0;
 
 static struct fb_var_screeninfo orig_var;
 
-void
-VID_Shutdown (void)
+static void
+VID_shutdown (void)
 {
 	Sys_MaskPrintf (SYS_VID, "VID_Shutdown\n");
 
@@ -406,6 +406,8 @@ VID_Init (byte *palette, byte *colormap)
 	if (fbdev_inited)
 		return;
 
+	Sys_RegisterShutdown (VID_shutdown);
+
 	R_LoadModule (0, VID_SetPalette);
 
 	if (COM_CheckParm ("-novideo")) {

libs/video/targets/vid_sdl.c

@@ -64,9 +64,17 @@ static vid_internal_t vid_internal;
 
 uint32_t    sdl_flags;
 
+static void
+VID_shutdown (void)
+{
+	SDL_Quit ();
+}
+
 void
 VID_Init (byte *palette, byte *colormap)
 {
+	Sys_RegisterShutdown (VID_shutdown);
+
 	vid_internal.gl_context = SDL_GL_Context;
 	vid_internal.sw_context = SDL_SW_Context;
 	// Load the SDL library

libs/video/targets/vid_svgalib.c

@@ -239,8 +239,8 @@ get_mode (int width, int height, int depth)
 	return i;
 }
 
-void
-VID_Shutdown (void)
+static void
+VID_shutdown (void)
 {
 	Sys_MaskPrintf (SYS_VID, "VID_Shutdown\n");
 
@@ -358,6 +358,8 @@ VID_Init (byte *palette, byte *colormap)
 	if (svgalib_inited)
 		return;
 
+	Sys_RegisterShutdown (VID_shutdown);
+
 	err = vga_init ();
 	if (err)
 		Sys_Error ("SVGALib failed to allocate a new VC");

libs/video/targets/vid_wgl.c

@@ -372,8 +372,8 @@ GL_EndRendering (void)
 	}
 }
 
-void
-VID_Shutdown (void)
+static void
+VID_shutdown (void)
 {
 	HGLRC		hRC;
 	HDC			hDC;
@@ -454,6 +454,8 @@ VID_Init (byte *palette, byte *colormap)
 	DWORD		lasterror;
 	WNDCLASS	wc;
 
+	Sys_RegisterShutdown (VID_shutdown);
+
 	vid_fullscreen = Cvar_Get ("vid_fullscreen", "0", CVAR_ROM | CVAR_ARCHIVE,
 							   NULL, "Run WGL client at fullscreen");
 	GLF_Init ();

libs/video/targets/vid_x11.c

@@ -83,6 +83,13 @@ D_EndDirectRect (int x, int y, int width, int height)
 // direct drawing of the "accessing disk" icon isn't supported
 }
 
+static void
+VID_shutdown (void)
+{
+	Sys_MaskPrintf (SYS_VID, "VID_shutdown\n");
+	X11_CloseDisplay ();
+}
+
 /*
 	Set up color translation tables and the window.  Takes a 256-color 8-bit
 	palette.  Palette data will go away after the call, so copy it if you'll
@@ -91,6 +98,8 @@ D_EndDirectRect (int x, int y, int width, int height)
 void
 VID_Init (byte *palette, byte *colormap)
 {
+	Sys_RegisterShutdown (VID_shutdown);
+
 	vid_internal.gl_context = X11_GL_Context;
 	vid_internal.sw_context = X11_SW_Context;
 #ifdef HAVE_VULKAN
@@ -133,18 +142,6 @@ VID_Init_Cvars ()
 	X11_GL_Init_Cvars ();
 }
 
-/*
-	VID_Shutdown
-
-	Restore video mode
-*/
-void
-VID_Shutdown (void)
-{
-	Sys_MaskPrintf (SYS_VID, "VID_Shutdown\n");
-	X11_CloseDisplay ();
-}
-
 #if 0
 static int  config_notify = 0;
 static int  config_notify_width;

nq/include/client.h

@@ -286,7 +286,6 @@ extern void (*write_angles) (sizebuf_t *sb, const vec3_t angles);
 struct cbuf_s;
 void CL_Init (struct cbuf_s *cbuf);
 void CL_InitCvars (void);
-void CL_Shutdown (void);
 void CL_ClearMemory (void);
 
 void CL_EstablishConnection (const char *host);

nq/source/cl_main.c

@@ -120,14 +120,10 @@ CL_WriteConfiguration (void)
 	}
 }
 
-void
+static void
 CL_Shutdown (void)
 {
 	CL_WriteConfiguration ();
-	CDAudio_Shutdown ();
-	S_Shutdown ();
-	IN_Shutdown ();
-	VID_Shutdown ();
 }
 
 void
@@ -537,6 +533,8 @@ CL_Init (cbuf_t *cbuf)
 {
 	byte       *basepal, *colormap;
 
+	Sys_RegisterShutdown (CL_Shutdown);
+
 	basepal = (byte *) QFS_LoadHunkFile (QFS_FOpenFile ("gfx/palette.lmp"));
 	if (!basepal)
 		Sys_Error ("Couldn't load gfx/palette.lmp");

nq/source/host.c

@@ -968,11 +968,4 @@ Host_Shutdown (void)
 		return;
 	}
 	isdown = true;
-
-
-	NET_Shutdown ();
-	if (cls.state != ca_dedicated) {
-		CL_Shutdown ();
-	}
-	Con_Shutdown ();
 }

nq/source/sv_ded.c

@@ -98,11 +98,6 @@ CL_EstablishConnection (const char *host)
 {
 }
 
-void
-CL_Shutdown ()
-{
-}
-
 void
 CL_Init (struct cbuf_s *cbuf)
 {

qtv/source/qtv.c

@@ -222,8 +222,6 @@ qtv_memory_init (void)
 static void
 qtv_shutdown (void)
 {
-	NET_Shutdown ();
-	Con_Shutdown ();
 	Cbuf_Delete (qtv_cbuf);
 	Cbuf_ArgsDelete (qtv_args);
 }

qw/source/cl_main.c

@@ -1882,10 +1882,5 @@ Host_Shutdown (void)
 
 	Host_WriteConfiguration ();
 
-	CDAudio_Shutdown ();
 	CL_HTTP_Shutdown ();
-	NET_Shutdown ();
-	S_Shutdown ();
-	IN_Shutdown ();
-	VID_Shutdown ();
 }

qw/source/sv_main.c

@@ -246,9 +246,6 @@ SV_Shutdown (void)
 	}
 	if (sv.recording_demo)
 		SV_Stop (0);
-
-	NET_Shutdown ();
-	Con_Shutdown ();
 }
 
 /*

tools/qwaq/qwaq-bi.c

@@ -161,9 +161,6 @@ static builtin_t builtins[] = {
 static void
 bi_shutdown (void)
 {
-	S_Shutdown ();
-	IN_Shutdown ();
-	VID_Shutdown ();
 }
 
 void