vg_steam.h

   1 #ifndef VG_STEAM_H
   2 #define VG_STEAM_H
   3
   4 #include "vg.h"
   5 #include "vg_log.h"
   6
   7 /*
   8  * TODO: Combine interfaces and stuff here instead of having them in client code
   9  */
  10
  11 #if defined(__linux__) || defined(__APPLE__)
  12 /*
  13  * The 32-bit version of gcc has the alignment requirement for u64 and double
  14  * set to 4 meaning that even with #pragma pack(8) these types will only be
  15  * four-byte aligned. The 64-bit version of gcc has the alignment requirement
  16  * for these types set to 8 meaning that unless we use #pragma pack(4) our
  17  * structures will get bigger. The 64-bit structure packing has to match the
  18  * 32-bit structure packing for each platform.
  19  */
  20  #define VALVE_CALLBACK_PACK_SMALL
  21 ;
  22  #pragma pack( push, 4 )
  23 #else
  24  #define VALVE_CALLBACK_PACK_LARGE
  25  #pragma pack( push, 8 )
  26 #endif
  27
  28 typedef i32     HSteamPipe;
  29 typedef i32     HSteamUser;
  30
  31 typedef int E_iCallBack_t;
  32
  33 typedef u64     u64_steamid;
  34 typedef u64 SteamAPICall_t;
  35
  36 typedef u32 AppId_t;
  37 const AppId_t k_uAppIdInvalid = 0x0;
  38
  39 typedef u32 DepotId_t;
  40 const DepotId_t k_uDepotIdInvalid = 0x0;
  41
  42 typedef u32 RTime32;
  43 typedef u32 AccountID_t;
  44
  45 enum { k_iSteamUserCallbacks = 100 };
  46 enum { k_iSteamGameServerCallbacks = 200 };
  47 enum { k_iSteamFriendsCallbacks = 300 };
  48 enum { k_iSteamBillingCallbacks = 400 };
  49 enum { k_iSteamMatchmakingCallbacks = 500 };
  50 enum { k_iSteamContentServerCallbacks = 600 };
  51 enum { k_iSteamUtilsCallbacks = 700 };
  52 enum { k_iClientFriendsCallbacks = 800 };
  53 enum { k_iClientUserCallbacks = 900 };
  54 enum { k_iSteamAppsCallbacks = 1000 };
  55 enum { k_iSteamUserStatsCallbacks = 1100 };
  56 enum { k_iSteamNetworkingCallbacks = 1200 };
  57 enum { k_iSteamNetworkingSocketsCallbacks = 1220 };
  58 enum { k_iSteamNetworkingMessagesCallbacks = 1250 };
  59 enum { k_iSteamNetworkingUtilsCallbacks = 1280 };
  60 enum { k_iSteamRemoteStorageCallbacks = 1300 };
  61 enum { k_iClientDepotBuilderCallbacks = 1400 };
  62 enum { k_iSteamGameServerItemsCallbacks = 1500 };
  63 enum { k_iClientUtilsCallbacks = 1600 };
  64 enum { k_iSteamGameCoordinatorCallbacks = 1700 };
  65 enum { k_iSteamGameServerStatsCallbacks = 1800 };
  66 enum { k_iSteam2AsyncCallbacks = 1900 };
  67 enum { k_iSteamGameStatsCallbacks = 2000 };
  68 enum { k_iClientHTTPCallbacks = 2100 };
  69 enum { k_iClientScreenshotsCallbacks = 2200 };
  70 enum { k_iSteamScreenshotsCallbacks = 2300 };
  71 enum { k_iClientAudioCallbacks = 2400 };
  72 enum { k_iClientUnifiedMessagesCallbacks = 2500 };
  73 enum { k_iSteamStreamLauncherCallbacks = 2600 };
  74 enum { k_iClientControllerCallbacks = 2700 };
  75 enum { k_iSteamControllerCallbacks = 2800 };
  76 enum { k_iClientParentalSettingsCallbacks = 2900 };
  77 enum { k_iClientDeviceAuthCallbacks = 3000 };
  78 enum { k_iClientNetworkDeviceManagerCallbacks = 3100 };
  79 enum { k_iClientMusicCallbacks = 3200 };
  80 enum { k_iClientRemoteClientManagerCallbacks = 3300 };
  81 enum { k_iClientUGCCallbacks = 3400 };
  82 enum { k_iSteamUGCCallbacks = 3400 };
  83 enum { k_iSteamStreamClientCallbacks = 3500 };
  84 enum { k_IClientProductBuilderCallbacks = 3600 };
  85 enum { k_iClientShortcutsCallbacks = 3700 };
  86 enum { k_iClientRemoteControlManagerCallbacks = 3800 };
  87 enum { k_iSteamAppListCallbacks = 3900 };
  88 enum { k_iSteamMusicCallbacks = 4000 };
  89 enum { k_iSteamMusicRemoteCallbacks = 4100 };
  90 enum { k_iClientVRCallbacks = 4200 };
  91 enum { k_iClientGameNotificationCallbacks = 4300 };
  92 enum { k_iSteamGameNotificationCallbacks = 4400 };
  93 enum { k_iSteamHTMLSurfaceCallbacks = 4500 };
  94 enum { k_iClientVideoCallbacks = 4600 };
  95 enum { k_iClientInventoryCallbacks = 4700 };
  96 enum { k_iClientBluetoothManagerCallbacks = 4800 };
  97 enum { k_iClientSharedConnectionCallbacks = 4900 };
  98 enum { k_ISteamParentalSettingsCallbacks = 5000 };
  99 enum { k_iClientShaderCallbacks = 5100 };
 100 enum { k_iSteamGameSearchCallbacks = 5200 };
 101 enum { k_iSteamPartiesCallbacks = 5300 };
 102 enum { k_iClientPartiesCallbacks = 5400 };
 103 enum { k_iSteamSTARCallbacks = 5500 };
 104 enum { k_iClientSTARCallbacks = 5600 };
 105 enum { k_iSteamRemotePlayCallbacks = 5700 };
 106 enum { k_iClientCompatCallbacks = 5800 };
 107 enum { k_iSteamChatCallbacks = 5900 };
 108
 109 // General result codes
 110 typedef enum EResult
 111 {
 112         k_EResultNone = 0,                                      // no result
 113         k_EResultOK     = 1,                                            // success
 114         k_EResultFail = 2,                                      // generic failure
 115         k_EResultNoConnection = 3,                      // no/failed network connection
 116 //      k_EResultNoConnectionRetry = 4, // OBSOLETE - removed
 117         k_EResultInvalidPassword = 5,           // password/ticket is invalid
 118         k_EResultLoggedInElsewhere = 6, // same user logged in elsewhere
 119         k_EResultInvalidProtocolVer = 7,        // protocol version is incorrect
 120         k_EResultInvalidParam = 8,                      // a parameter is incorrect
 121         k_EResultFileNotFound = 9,                      // file was not found
 122         k_EResultBusy = 10,                                     // called method busy - action not taken
 123         k_EResultInvalidState = 11,             // called object was in an invalid state
 124         k_EResultInvalidName = 12,                 // name is invalid
 125         k_EResultInvalidEmail = 13,             // email is invalid
 126         k_EResultDuplicateName = 14,            // name is not unique
 127         k_EResultAccessDenied = 15,             // access is denied
 128         k_EResultTimeout = 16,                     // operation timed out
 129         k_EResultBanned = 17,                           // VAC2 banned
 130         k_EResultAccountNotFound = 18,  // account not found
 131         k_EResultInvalidSteamID = 19,           // steamID is invalid
 132         k_EResultServiceUnavailable = 20,// The requested service is currently
 133                                     // unavailable
 134         k_EResultNotLoggedOn = 21,       // The user is not logged on
 135         k_EResultPending = 22,                          // Request is pending (may be in process, or
 136                                     // waiting on third party)
 137         k_EResultEncryptionFailure = 23,                // Encryption or Decryption failed
 138         k_EResultInsufficientPrivilege = 24,// Insufficient privilege
 139         k_EResultLimitExceeded = 25,                    // Too much of a good thing
 140         k_EResultRevoked = 26,                          // Access has been revoked (used for revoked
 141                                     // guest passes)
 142         k_EResultExpired = 27,                          // License/Guest pass the user is trying to
 143                                     // access is expired
 144         k_EResultAlreadyRedeemed = 28,  // Guest pass has already been redeemed by
 145                                     // account, cannot be acked again
 146         k_EResultDuplicateRequest = 29, // The request is a duplicate and the action
 147                                     // has already occurred in the past, ignored
 148                                     // this time
 149         k_EResultAlreadyOwned = 30,             // All the games in this guest pass
 150                                     // redemption request are already owned by
 151                                     // the user
 152         k_EResultIPNotFound = 31,                       // IP address not found
 153         k_EResultPersistFailed = 32,            // failed to write change to the data store
 154         k_EResultLockingFailed = 33,            // failed to acquire access lock for this
 155                                     // operation
 156         k_EResultLogonSessionReplaced = 34,
 157         k_EResultConnectFailed = 35,
 158         k_EResultHandshakeFailed = 36,
 159         k_EResultIOFailure = 37,
 160         k_EResultRemoteDisconnect = 38,
 161         k_EResultShoppingCartNotFound = 39,     // failed to find the shopping cart
 162                                        // requested
 163         k_EResultBlocked = 40,                                  // a user didn't allow it
 164         k_EResultIgnored = 41,                                  // target is ignoring sender
 165         k_EResultNoMatch = 42,                                  // nothing matching the request found
 166         k_EResultAccountDisabled = 43,
 167         k_EResultServiceReadOnly = 44,          // this service is not accepting content
 168                                        // changes right now
 169         k_EResultAccountNotFeatured = 45,       // account doesn't have value, so this
 170                                        // feature isn't available
 171         k_EResultAdministratorOK = 46,          // allowed to take this action, but only
 172                                        // because requester is admin
 173         k_EResultContentVersion = 47,                   // A Version mismatch in content
 174                                        // transmitted within the Steam protocol.
 175         k_EResultTryAnotherCM = 48,                     // The current CM can't service the user
 176                                        // making a request, user should try
 177                                        // another.
 178         k_EResultPasswordRequiredToKickSession = 49, // You are already logged in
 179                                        // elsewhere, this cached credential
 180                                        // login has failed.
 181         k_EResultAlreadyLoggedInElsewhere = 50, // You are already logged in
 182                                            // elsewhere, you must wait
 183         k_EResultSuspended = 51,   // Long running operation (content download)
 184                               // suspended/paused
 185         k_EResultCancelled = 52,   // Operation canceled (typically by user:
 186                               // content download)
 187         k_EResultDataCorruption = 53,   // Operation canceled because data is ill
 188                                  // formed or unrecoverable
 189         k_EResultDiskFull = 54,                 // Operation canceled - not enough disk space.
 190         k_EResultRemoteCallFailed = 55, // an remote call or IPC call failed
 191         k_EResultPasswordUnset = 56,            // Password could not be verified as it's
 192                                     // unset server side
 193         k_EResultExternalAccountUnlinked = 57,  // External account (PSN, Facebook...)
 194                                           // is not linked to a Steam account
 195         k_EResultPSNTicketInvalid = 58,                 // PSN ticket was invalid
 196         k_EResultExternalAccountAlreadyLinked = 59,     // External account (PSN,
 197          // Facebook...) is already linked to some other account,
 198          // must explicitly request to replace/delete the link first
 199         k_EResultRemoteFileConflict = 60, // The sync cannot resume due to a conflict
 200                                      // between the local and remote files
 201         k_EResultIllegalPassword = 61,   // The requested new password is not legal
 202         k_EResultSameAsPreviousValue = 62,// new value is the same as the old one (
 203                                      // secret question and answer )
 204         k_EResultAccountLogonDenied = 63, // account login denied due to 2nd factor
 205                                      // authentication failure
 206         k_EResultCannotUseOldPassword = 64,     // The requested new password is not
 207                                        // legal
 208         k_EResultInvalidLoginAuthCode = 65,     // account login denied due to auth code
 209                                        // invalid
 210         k_EResultAccountLogonDeniedNoMail = 66, // account login denied due to 2nd
 211                                            // factor auth failure - and no mail
 212                                            // has been sent
 213         k_EResultHardwareNotCapableOfIPT = 67,
 214         k_EResultIPTInitError = 68,
 215         k_EResultParentalControlRestricted = 69,// operation failed due to parental
 216                                            // control restrictions for current
 217                                            // user
 218         k_EResultFacebookQueryError = 70,                // Facebook query returned an error
 219         k_EResultExpiredLoginAuthCode = 71,              // account login denied due to auth
 220                                            // code expired
 221         k_EResultIPLoginRestrictionFailed = 72,
 222         k_EResultAccountLockedDown = 73,
 223         k_EResultAccountLogonDeniedVerifiedEmailRequired = 74,
 224         k_EResultNoMatchingURL = 75,
 225         k_EResultBadResponse = 76,              // parse failure, missing field, etc.
 226         k_EResultRequirePasswordReEntry = 77, // The user cannot complete the action
 227                                          // until they re-enter their password
 228         k_EResultValueOutOfRange = 78,  // the value entered is outside the
 229                                     // acceptable range
 230         k_EResultUnexpectedError = 79,  // something happened that we didn't expect
 231                                     // to ever happen
 232         k_EResultDisabled = 80,                         // The requested service has been configured
 233                                     // to be unavailable
 234         k_EResultInvalidCEGSubmission = 81,     // The set of files submitted to the CEG
 235                                        // server are not valid !
 236         k_EResultRestrictedDevice = 82,         // The device being used is not allowed
 237                                        // to perform this action
 238         k_EResultRegionLocked = 83,                     // The action could not be complete
 239                                        // because it is region restricted
 240         k_EResultRateLimitExceeded = 84,        // Temporary rate limit exceeded, try
 241                                     // again later, different from
 242                                     // k_EResultLimitExceeded which may be
 243                                     // permanent
 244         k_EResultAccountLoginDeniedNeedTwoFactor = 85, // Need two-factor code to
 245                                                   // login
 246         k_EResultItemDeleted = 86,      // The thing we're trying to access has been
 247                               // deleted
 248         k_EResultAccountLoginDeniedThrottle = 87,       // login attempt failed, try to
 249                                              // throttle response to possible
 250                                              // attacker
 251         k_EResultTwoFactorCodeMismatch = 88,            // two factor code mismatch
 252         k_EResultTwoFactorActivationCodeMismatch = 89,  // activation code for
 253                                                    // two-factor didn't match
 254         k_EResultAccountAssociatedToMultiplePartners = 90,      // account has been
 255                                           // associated with multiple partners
 256         k_EResultNotModified = 91,                                      // data not modified
 257         k_EResultNoMobileDevice = 92,   // the account does not have a mobile
 258                                  // device associated with it
 259         k_EResultTimeNotSynced = 93,    // the time presented is out of range or
 260                                  // tolerance
 261         k_EResultSmsCodeFailed = 94,    // SMS code failure (no match, none pending,
 262                                  // etc.)
 263         k_EResultAccountLimitExceeded = 95,     // Too many accounts access this resource
 264         k_EResultAccountActivityLimitExceeded = 96,// Too many changes to
 265                                               // this account
 266         k_EResultPhoneActivityLimitExceeded = 97,       // Too many changes to this phone
 267         k_EResultRefundToWallet = 98,   // Cannot refund to payment method, must use
 268                                  // wallet
 269         k_EResultEmailSendFailure = 99, // Cannot send an email
 270         k_EResultNotSettled = 100,      // Can't perform operation till payment
 271                               // has settled
 272         k_EResultNeedCaptcha = 101,// Needs to provide a valid captcha
 273         k_EResultGSLTDenied = 102,      // a game server login token owned by this token's
 274                               // owner has been banned
 275         k_EResultGSOwnerDenied = 103,   // game server owner is denied for other reason
 276                         // (account lock, community ban, vac ban, missing phone)
 277         k_EResultInvalidItemType = 104,// the type of thing we were requested to act
 278                                   // on is invalid
 279         k_EResultIPBanned = 105,// the ip address has been banned from taking this
 280                            // action
 281         k_EResultGSLTExpired = 106,// this token has expired from disuse; can be
 282                               // reset for use
 283         k_EResultInsufficientFunds = 107,// user doesn't have enough wallet funds to
 284                                     // complete the action
 285         k_EResultTooManyPending = 108,  // There are too many of this thing pending
 286                                     // already
 287         k_EResultNoSiteLicensesFound = 109,     // No site licenses found
 288         k_EResultWGNetworkSendExceeded = 110,// the WG couldn't send a response
 289                               // because we exceeded max network send size
 290         k_EResultAccountNotFriends = 111, // the user is not mutually friends
 291         k_EResultLimitedUserAccount = 112,// the user is limited
 292         k_EResultCantRemoveItem = 113,   // item can't be removed
 293         k_EResultAccountDeleted = 114,   // account has been deleted
 294         k_EResultExistingUserCancelledLicense = 115,
 295    // A license for this already exists, but cancelled
 296         k_EResultCommunityCooldown = 116,       // access is denied because of a
 297             // community cooldown (probably from support profile data resets)
 298         k_EResultNoLauncherSpecified = 117,     // No launcher was specified, but a
 299    // launcher was needed to choose correct realm for operation.
 300         k_EResultMustAgreeToSSA = 118,// User must agree to china SSA or global SSA
 301                                  // before login
 302         k_EResultLauncherMigrated = 119,        // The specified launcher type is no longer
 303                            // supported; the user should be directed elsewhere
 304         k_EResultSteamRealmMismatch = 120,      // The user's realm does not match the
 305                                        // realm of the requested resource
 306         k_EResultInvalidSignature = 121,                        // signature check did not match
 307         k_EResultParseFailure = 122,            // Failed to parse input
 308         k_EResultNoVerifiedPhone = 123, // account does not have a verified phone
 309                                     // number
 310 } EResult;
 311
 312 typedef struct {
 313
 314         HSteamUser m_hSteamUser;        // Specific user to whom this callback applies.
 315         int m_iCallback;
 316         u8 *m_pubParam;                 // Points to the callback structure
 317         int m_cubParam;                 // Size of the data pointed to by m_pubParam
 318
 319 } CallbackMsg_t;
 320
 321 typedef struct {
 322
 323         SteamAPICall_t m_hAsyncCall;
 324         int m_iCallback;
 325         u32 m_cubParam;
 326
 327 } SteamAPICallCompleted_t;
 328
 329 enum { k_iSteamAPICallCompleted = k_iSteamUtilsCallbacks + 3 };
 330
 331 // Steam universes.  Each universe is a self-contained Steam instance.
 332 typedef enum {
 333         k_EUniverseInvalid = 0,
 334         k_EUniversePublic = 1,
 335         k_EUniverseBeta = 2,
 336         k_EUniverseInternal = 3,
 337         k_EUniverseDev = 4,
 338         // k_EUniverseRC = 5,                           // no such universe anymore
 339         k_EUniverseMax
 340 } EUniverse_t;
 341
 342 struct SteamIDComponent_t
 343 {
 344 #ifdef VALVE_BIG_ENDIAN
 345    EUniverse_t                  m_EUniverse : 8
 346    unsigned int         m_EAccountType : 4;
 347    unsigned int         m_unAccountInstance : 20;
 348    u32                                  m_unAccountID : 32;
 349 #else
 350    u32                                  m_unAccountID : 32;
 351    unsigned int         m_unAccountInstance : 20;
 352    unsigned int         m_EAccountType : 4;
 353    EUniverse_t                  m_EUniverse : 8;
 354 #endif
 355 };
 356
 357 typedef struct
 358 {
 359         // 64 bits total
 360         union
 361    {
 362       struct SteamIDComponent_t m_comp;
 363                 u64 m_unAll64Bits;
 364         };
 365 }
 366 CSteamID;
 367
 368 typedef struct GameID_t
 369 {
 370 #ifdef VALVE_BIG_ENDIAN
 371         unsigned int m_nModID : 32;
 372         unsigned int m_nType : 8;
 373         unsigned int m_nAppID : 24;
 374 #else
 375         unsigned int m_nAppID : 24;
 376         unsigned int m_nType : 8;
 377         unsigned int m_nModID : 32;
 378 #endif
 379 } CGameID;
 380
 381 #pragma pack( pop )
 382
 383 /*
 384  * Standard login
 385  * =============================================================================
 386  */
 387
 388 int   SteamAPI_RestartAppIfNecessary( u32 unOwnAppID );
 389 int   SteamAPI_Init(void);
 390 void  SteamAPI_Shutdown(void);
 391
 392 /*
 393  * Server mode login
 394  * =============================================================================
 395  */
 396
 397 typedef enum EServerMode EServerMode;
 398 enum EServerMode
 399 {
 400         eServerModeInvalid = 0,
 401         eServerModeNoAuthentication = 1,
 402         eServerModeAuthentication = 2,
 403         eServerModeAuthenticationAndSecure = 3,
 404 };
 405
 406 int SteamInternal_GameServer_Init( u32 unIP, u16 usLegacySteamPort,
 407                                    u16 usGamePort, u16 usQueryPort,
 408                                    EServerMode eServerMode,
 409                                    const char *pchVersionString );
 410
 411 /* Initialize SteamGameServer client and interface objects, and set server
 412  * properties which may not be changed.
 413  * After calling this function, you should set any additional server parameters,
 414  * and then call ISteamGameServer::LogOnAnonymous() or ISteamGameServer::LogOn()
 415  *
 416  * - unIP will usually be zero.  If you are on a machine with multiple IP
 417  *   addresses, you can pass a non-zero value here and the relevant sockets will
 418  *   be bound to that IP.  This can be used to ensure that the IP you desire is
 419  *   the one used in the server browser.
 420  * - usGamePort is the port that clients will connect to for gameplay. You will
 421  *   usually open up your own socket bound to this port.
 422  * - usQueryPort is the port that will manage server browser related duties and
 423  *   info pings from clients.  If you pass STEAMGAMESERVER_QUERY_PORT_SHARED for
 424  *   usQueryPort, then it will use "GameSocketShare" mode, which means that the
 425  *   game is responsible for sending and receiving UDP packets for the master
 426  *   server updater.  (See ISteamGameServer::HandleIncomingPacket and
 427  *   ISteamGameServer::GetNextOutgoingPacket.)
 428  * - The version string should be in the form x.x.x.x, and is used by the master
 429  *   server to detect when the server is out of date. (Only servers with the
 430  *   latest version will be listed.)
 431  */
 432 int   SteamGameServer_Init( u32 unIP, u16 usGamePort, u16 usQueryPort,
 433                             EServerMode eServerMode,
 434                             const char *pchVersionString )
 435 {
 436    return SteamInternal_GameServer_Init( unIP, 0, usGamePort, usQueryPort,
 437                                          eServerMode, pchVersionString );
 438 }
 439
 440
 441 void *SteamAPI_SteamGameServer_v014(void);
 442 void *SteamAPI_SteamGameServer(void)
 443 {
 444    return SteamAPI_SteamGameServer_v014();
 445 }
 446
 447 void SteamAPI_ISteamGameServer_LogOnAnonymous( void* self );
 448
 449 void SteamGameServer_Shutdown(void);
 450
 451 int  SteamGameServer_BSecure(void);
 452 u64  SteamGameServer_GetSteamID(void);
 453
 454 /*
 455  * Async callbacks
 456  * =============================================================================
 457  */
 458
 459 typedef struct vg_steam_async_call vg_steam_async_call;
 460 typedef struct vg_steam_callback_handler vg_steam_callback_handler;
 461
 462 struct vg_steam{
 463    struct vg_steam_async_call{
 464       SteamAPICall_t id;
 465       void *userdata;
 466
 467       void (*p_handler)( void *result, void *userdata );
 468    }
 469    calls[4];
 470    u32 call_count;
 471
 472    struct vg_steam_callback_handler{
 473       u32 callback_id;
 474       void (*p_handler)( CallbackMsg_t *msg );
 475    }
 476    callback_handlers[32];
 477    u32 callback_handler_count;
 478 }
 479 static vg_steam;
 480
 481 vg_steam_async_call *vg_alloc_async_steam_api_call(void)
 482 {
 483    if( vg_steam.call_count == vg_list_size(vg_steam.calls) ){
 484       vg_fatal_error( "Maximum concurrent API calls exceeded (%u)\n",
 485                       vg_steam.call_count );
 486    }
 487
 488    return &vg_steam.calls[ vg_steam.call_count ++ ];
 489 }
 490
 491 /*
 492  * Regular callbacks
 493  * =============================================================================
 494  */
 495
 496 static void steam_register_callback( u32 id,
 497                                      void (*p_handler)( CallbackMsg_t *msg ) )
 498 {
 499    if( vg_steam.callback_handler_count ==
 500        vg_list_size(vg_steam.callback_handlers) )
 501    {
 502       vg_fatal_error( "Too many steam callback handlers registered (%u)\n",
 503                       vg_steam.callback_handler_count );
 504    }
 505
 506    vg_steam_callback_handler *handler =
 507       &vg_steam.callback_handlers[ vg_steam.callback_handler_count ++ ];
 508
 509    handler->p_handler = p_handler;
 510    handler->callback_id = id;
 511 }
 512
 513 /*
 514  * Event loop
 515  * =============================================================================
 516  */
 517 HSteamPipe SteamAPI_GetHSteamPipe(void);
 518 HSteamPipe SteamGameServer_GetHSteamPipe(void);
 519 HSteamUser SteamAPI_GetHSteamUser(void);
 520 void    SteamAPI_ManualDispatch_Init(void);
 521 void    SteamAPI_ManualDispatch_RunFrame( HSteamPipe hSteamPipe );
 522 int     SteamAPI_ManualDispatch_GetNextCallback( HSteamPipe hSteamPipe,
 523                                                CallbackMsg_t *pCallbackMsg );
 524 void    SteamAPI_ManualDispatch_FreeLastCallback( HSteamPipe hSteamPipe );
 525 int     SteamAPI_ManualDispatch_GetAPICallResult( HSteamPipe hSteamPipe,
 526          SteamAPICall_t hSteamAPICall, void *pCallback, int cubCallback,
 527          int iCallbackExpected, int *pbFailed );
 528
 529 void    SteamAPI_ReleaseCurrentThreadMemory(void);
 530
 531 static void steamworks_process_api_call( HSteamPipe pipe,
 532                                          CallbackMsg_t *callback )
 533 {
 534    SteamAPICallCompleted_t *pCallCompleted =
 535       (SteamAPICallCompleted_t *)callback->m_pubParam;
 536
 537    int bFailed;
 538    void *call_data = alloca( pCallCompleted->m_cubParam );
 539
 540    if( SteamAPI_ManualDispatch_GetAPICallResult(
 541       pipe,
 542       pCallCompleted->m_hAsyncCall,
 543       call_data,
 544       pCallCompleted->m_cubParam,
 545       pCallCompleted->m_iCallback,
 546       &bFailed )
 547    )
 548    {
 549       /*
 550        * Dispatch the call result to the registered handler(s) for the
 551        * call identified by pCallCompleted->m_hAsyncCall
 552        */
 553
 554       vg_info( "steamworks_event::api_call_completed( %lu )\n",
 555                   pCallCompleted->m_hAsyncCall );
 556
 557       int j=0;
 558       for( int i=0; i<vg_steam.call_count; i++ ){
 559          if( vg_steam.calls[i].id != pCallCompleted->m_hAsyncCall ){
 560             vg_steam.calls[j ++] = vg_steam.calls[i];
 561          }
 562          else{
 563             vg_steam_async_call *call = &vg_steam.calls[i];
 564             call->p_handler( call_data, call->userdata );
 565          }
 566       }
 567
 568       if( vg_steam.call_count == j ){
 569          vg_error( "No tracker was register for API call\n" );
 570       }
 571
 572       vg_steam.call_count = j;
 573    }
 574    else
 575    {
 576 #if 0
 577       typedef enum ESteamAPICallFailure
 578       {
 579          k_ESteamAPICallFailureNone = -1,
 580          k_ESteamAPICallFailureSteamGone = 0,
 581          k_ESteamAPICallFailureNetworkFailure = 1,
 582          k_ESteamAPICallFailureInvalidHandle = 2,
 583          k_ESteamAPICallFailureMismatchedCallback = 3,
 584       }
 585
 586       ESteamAPICallFailure;
 587       ESteamAPICallFailure fail_why =
 588       SteamAPI_ISteamUtils_GetAPICallFailureReason(
 589             steam_api_classes.utils, pCallCompleted->m_hAsyncCall );
 590
 591       vg_error( "steamworks_event: error getting call result on"
 592                 "%lu (code %d)\n",
 593                 pCallCompleted->m_hAsyncCall, fail_why );
 594 #endif
 595    }
 596 }
 597
 598 static void steamworks_event_loop( HSteamPipe pipe )
 599 {
 600         SteamAPI_ManualDispatch_RunFrame( pipe );
 601         CallbackMsg_t callback;
 602
 603         while( SteamAPI_ManualDispatch_GetNextCallback( pipe, &callback ) ){
 604                 vg_low( "steamworks_event::callback( %i )\n", callback.m_iCallback );
 605
 606                 /* Check for dispatching API call results */
 607                 if( callback.m_iCallback == k_iSteamAPICallCompleted ){
 608          steamworks_process_api_call( pipe, &callback );
 609                 }
 610                 else {
 611                         /*
 612           * Look at callback.m_iCallback to see what kind of callback it is,
 613                          * and dispatch to appropriate handler(s)
 614                          * void *data = callback.m_pubParam;
 615           */
 616
 617          for( int i=0; i<vg_steam.callback_handler_count; i++ ){
 618             vg_steam_callback_handler *handler = &vg_steam.callback_handlers[i];
 619             if( handler->callback_id == callback.m_iCallback ){
 620                handler->p_handler( &callback );
 621                break;
 622             }
 623          }
 624                 }
 625
 626                 SteamAPI_ManualDispatch_FreeLastCallback( pipe );
 627         }
 628 }
 629
 630 /*
 631  * This is required to run the server outside of steamcmd environment.
 632  * It can be any appid but idealy the one that is actually your game
 633  */
 634 static void steamworks_ensure_txt( const char *appid_str )
 635 {
 636    FILE *txt = fopen("steam_appid.txt", "w");
 637    fputs( appid_str, txt );
 638    fclose( txt );
 639 }
 640
 641 #endif /* VG_STEAM_H */