258 lines
6.5 KiB
C
258 lines
6.5 KiB
C
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/*
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This is code needed to contact and interact with the tracker server. Contact
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me at kip@thevertigo.com for comments. Yes, I thought about GGZ, but it wasn't
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fully portable at the time of writing.
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This file and the acompanying tracker.h file are free software;
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you can redistribute them and/or modify them under the terms of the GNU
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Library General Public License as published by the Free Software Foundation;
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either version 2 of the License, or (at your option) any later version.
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These files are distributed in the hope that they will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with these files; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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// Includes...
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#include "dl_list.h"
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#include "error.h"
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#include "netdrv.h"
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#include "newmenu.h"
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#include <SDL.h>
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#include <SDL/SDL_thread.h>
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#include "text.h"
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#include "tracker/tracker.h"
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#include "u_mem.h"
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// Maximum number of games to list...
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#define TRACKER_MAX_GAMES 64
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// Current status states...
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typedef enum
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{
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Null, /* Nothing happening yet */
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Initializing, /* Initializing stuff */
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Connecting, /* Connecting to the tracker server */
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Refreshing, /* Refreshing */
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}TrackerState;
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// Tracker data used to communicate with communication thread...
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struct
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{
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// Mutex...
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SDL_mutex *pMutex;
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// Status...
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TrackerState State;
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// Game list...
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dl_list *GameList;
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// Toggle to tell tracker thread to gracefuly exit...
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unsigned char AbortRequested;
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}TrackerData;
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// Callback to update menu GUI...
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static void TrackerUpdateBrowseMenuCallback(
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int nItems, newmenu_item *pMenuItems, int *nLastKey, int nCurrentItem)
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{
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// Lock the tracker mutex...
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SDL_LockMutex(TrackerData.pMutex);
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// Abort requested...
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if(TrackerData.AbortRequested)
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{
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// Update the status...
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nItems = 1;
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pMenuItems[0].type = NM_TYPE_TEXT;
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pMenuItems[0].text = "Aborting, please wait...";
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// Done...
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return;
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}
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// What state is the tracker in?
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switch(TrackerData.State)
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{
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// Nothing...
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default:
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case Null:
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{
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// Update the status...
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nItems = 1;
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pMenuItems[0].type = NM_TYPE_TEXT;
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pMenuItems[0].text = "";
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// Done...
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break;
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}
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// Initializing...
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case Initializing:
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{
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// Update the status...
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nItems = 1;
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pMenuItems[0].type = NM_TYPE_TEXT;
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pMenuItems[0].text = "Initializing, please wait...";
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// Done...
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break;
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}
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// Connecting...
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case Connecting:
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{
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// Update the status...
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nItems = 1;
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pMenuItems[0].type = NM_TYPE_TEXT;
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pMenuItems[0].text = "Connecting to tracker server...";
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// Done...
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break;
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}
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// Refreshing...
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case Refreshing:
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{
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// Update the status...
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nItems = 1;
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pMenuItems[0].type = NM_TYPE_TEXT;
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pMenuItems[0].text = "Refreshing...";
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// Done...
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break;
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}
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}
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// Unlock the tracker mutex...
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SDL_UnlockMutex(TrackerData.pMutex);
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}
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// Tracker communication thread...
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static int TrackerCommunicationThread(void *pThreadData)
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{
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/* Test code to make sure GUI is working the way I plan */
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SDL_Delay(1000);
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// Initializing...
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SDL_LockMutex(TrackerData.pMutex);
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TrackerData.State = Initializing;
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SDL_UnlockMutex(TrackerData.pMutex);
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SDL_Delay(1000);
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SDL_LockMutex(TrackerData.pMutex);
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TrackerData.State = Connecting;
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SDL_UnlockMutex(TrackerData.pMutex);
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while(1)
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{
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SDL_Delay(1000);
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SDL_LockMutex(TrackerData.pMutex);
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if(TrackerData.AbortRequested)
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{
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return 0;
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}
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TrackerData.State = Refreshing;
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SDL_UnlockMutex(TrackerData.pMutex);
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}
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// Stubbed...
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return 0;
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}
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// Show the browse netgames menu...
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void TrackerBrowseMenu()
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{
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// Variables...
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newmenu_item MenuItems[TRACKER_MAX_GAMES];
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SDL_Thread *pCommunicationThread = NULL;
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// This isn't available in release mode yet...
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#ifdef NDEBUG
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// Alert user...
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nm_messagebox(NULL, 1, TXT_OK, "Sorry, but NetGame browsing is not\n"
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"enabled in release mode yet.");
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// Done...
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return;
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#endif
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// Initialize tracker data...
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memset(&TrackerData, '\x0', sizeof(TrackerData));
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// Create mutex...
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TrackerData.pMutex = SDL_CreateMutex();
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// Failed...
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if(!TrackerData.pMutex)
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Error("Failed to create tracker mutex...");
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// State...
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TrackerData.State = Null;
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// Game list...
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TrackerData.GameList = dl_init();
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// Abort flag...
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TrackerData.AbortRequested = 0;
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// Launch the communication thread...
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pCommunicationThread = SDL_CreateThread(TrackerCommunicationThread, NULL);
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// Failed... (not sure if SDL has its own handler already, oh well)
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if(!pCommunicationThread)
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Error("Failed to spawn communication thread.");
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// Initialize the stubbed menu...
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memset(MenuItems, '\x0', sizeof(MenuItems));
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MenuItems[0].type = NM_TYPE_TEXT;
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MenuItems[0].text = " ";
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// Display the GUI...
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int const nMenuReturn = newmenu_do(
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"UDP/IP NetGames", NULL, 1, MenuItems, TrackerUpdateBrowseMenuCallback);
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// Signal to communication thread to terminate gracefully...
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TrackerData.AbortRequested = 1;
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// Wait for thread to die...
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SDL_WaitThread(pCommunicationThread, NULL);
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// Destroy the mutex...
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SDL_DestroyMutex(TrackerData.pMutex);
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TrackerData.pMutex = NULL;
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// Cleanup the game list if allocated...
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if(TrackerData.GameList)
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{
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// Free each node...
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while(TrackerData.GameList->first)
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dl_remove(TrackerData.GameList, TrackerData.GameList->first);
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// Free the list itself...
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d_free(TrackerData.GameList);
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TrackerData.GameList = NULL;
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}
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// User hit escape... (or something else unexpected)
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if(nMenuReturn < 0)
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return;
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}
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