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 typedef i8  steamapi_bool;
  45
  46 enum { k_iSteamUserCallbacks = 100 };
  47 enum { k_iSteamGameServerCallbacks = 200 };
  48 enum { k_iSteamFriendsCallbacks = 300 };
  49 enum { k_iSteamBillingCallbacks = 400 };
  50 enum { k_iSteamMatchmakingCallbacks = 500 };
  51 enum { k_iSteamContentServerCallbacks = 600 };
  52 enum { k_iSteamUtilsCallbacks = 700 };
  53 enum { k_iClientFriendsCallbacks = 800 };
  54 enum { k_iClientUserCallbacks = 900 };
  55 enum { k_iSteamAppsCallbacks = 1000 };
  56 enum { k_iSteamUserStatsCallbacks = 1100 };
  57 enum { k_iSteamNetworkingCallbacks = 1200 };
  58 enum { k_iSteamNetworkingSocketsCallbacks = 1220 };
  59 enum { k_iSteamNetworkingMessagesCallbacks = 1250 };
  60 enum { k_iSteamNetworkingUtilsCallbacks = 1280 };
  61 enum { k_iSteamRemoteStorageCallbacks = 1300 };
  62 enum { k_iClientDepotBuilderCallbacks = 1400 };
  63 enum { k_iSteamGameServerItemsCallbacks = 1500 };
  64 enum { k_iClientUtilsCallbacks = 1600 };
  65 enum { k_iSteamGameCoordinatorCallbacks = 1700 };
  66 enum { k_iSteamGameServerStatsCallbacks = 1800 };
  67 enum { k_iSteam2AsyncCallbacks = 1900 };
  68 enum { k_iSteamGameStatsCallbacks = 2000 };
  69 enum { k_iClientHTTPCallbacks = 2100 };
  70 enum { k_iClientScreenshotsCallbacks = 2200 };
  71 enum { k_iSteamScreenshotsCallbacks = 2300 };
  72 enum { k_iClientAudioCallbacks = 2400 };
  73 enum { k_iClientUnifiedMessagesCallbacks = 2500 };
  74 enum { k_iSteamStreamLauncherCallbacks = 2600 };
  75 enum { k_iClientControllerCallbacks = 2700 };
  76 enum { k_iSteamControllerCallbacks = 2800 };
  77 enum { k_iClientParentalSettingsCallbacks = 2900 };
  78 enum { k_iClientDeviceAuthCallbacks = 3000 };
  79 enum { k_iClientNetworkDeviceManagerCallbacks = 3100 };
  80 enum { k_iClientMusicCallbacks = 3200 };
  81 enum { k_iClientRemoteClientManagerCallbacks = 3300 };
  82 enum { k_iClientUGCCallbacks = 3400 };
  83 enum { k_iSteamUGCCallbacks = 3400 };
  84 enum { k_iSteamStreamClientCallbacks = 3500 };
  85 enum { k_IClientProductBuilderCallbacks = 3600 };
  86 enum { k_iClientShortcutsCallbacks = 3700 };
  87 enum { k_iClientRemoteControlManagerCallbacks = 3800 };
  88 enum { k_iSteamAppListCallbacks = 3900 };
  89 enum { k_iSteamMusicCallbacks = 4000 };
  90 enum { k_iSteamMusicRemoteCallbacks = 4100 };
  91 enum { k_iClientVRCallbacks = 4200 };
  92 enum { k_iClientGameNotificationCallbacks = 4300 };
  93 enum { k_iSteamGameNotificationCallbacks = 4400 };
  94 enum { k_iSteamHTMLSurfaceCallbacks = 4500 };
  95 enum { k_iClientVideoCallbacks = 4600 };
  96 enum { k_iClientInventoryCallbacks = 4700 };
  97 enum { k_iClientBluetoothManagerCallbacks = 4800 };
  98 enum { k_iClientSharedConnectionCallbacks = 4900 };
  99 enum { k_ISteamParentalSettingsCallbacks = 5000 };
 100 enum { k_iClientShaderCallbacks = 5100 };
 101 enum { k_iSteamGameSearchCallbacks = 5200 };
 102 enum { k_iSteamPartiesCallbacks = 5300 };
 103 enum { k_iClientPartiesCallbacks = 5400 };
 104 enum { k_iSteamSTARCallbacks = 5500 };
 105 enum { k_iClientSTARCallbacks = 5600 };
 106 enum { k_iSteamRemotePlayCallbacks = 5700 };
 107 enum { k_iClientCompatCallbacks = 5800 };
 108 enum { k_iSteamChatCallbacks = 5900 };
 109
 110 // General result codes
 111 typedef enum EResult
 112 {
 113    k_EResultNone = 0,               // no result
 114    k_EResultOK   = 1,                  // success
 115    k_EResultFail = 2,               // generic failure
 116    k_EResultNoConnection = 3,         // no/failed network connection
 117 //   k_EResultNoConnectionRetry = 4,   // OBSOLETE - removed
 118    k_EResultInvalidPassword = 5,      // password/ticket is invalid
 119    k_EResultLoggedInElsewhere = 6,   // same user logged in elsewhere
 120    k_EResultInvalidProtocolVer = 7,   // protocol version is incorrect
 121    k_EResultInvalidParam = 8,         // a parameter is incorrect
 122    k_EResultFileNotFound = 9,         // file was not found
 123    k_EResultBusy = 10,               // called method busy - action not taken
 124    k_EResultInvalidState = 11,      // called object was in an invalid state
 125    k_EResultInvalidName = 12,         // name is invalid
 126    k_EResultInvalidEmail = 13,      // email is invalid
 127    k_EResultDuplicateName = 14,      // name is not unique
 128    k_EResultAccessDenied = 15,      // access is denied
 129    k_EResultTimeout = 16,            // operation timed out
 130    k_EResultBanned = 17,            // VAC2 banned
 131    k_EResultAccountNotFound = 18,   // account not found
 132    k_EResultInvalidSteamID = 19,      // steamID is invalid
 133    k_EResultServiceUnavailable = 20,// The requested service is currently
 134                                     // unavailable
 135    k_EResultNotLoggedOn = 21,       // The user is not logged on
 136    k_EResultPending = 22,            // Request is pending (may be in process, or
 137                                     // waiting on third party)
 138    k_EResultEncryptionFailure = 23,      // Encryption or Decryption failed
 139    k_EResultInsufficientPrivilege = 24,// Insufficient privilege
 140    k_EResultLimitExceeded = 25,         // Too much of a good thing
 141    k_EResultRevoked = 26,            // Access has been revoked (used for revoked
 142                                     // guest passes)
 143    k_EResultExpired = 27,            // License/Guest pass the user is trying to
 144                                     // access is expired
 145    k_EResultAlreadyRedeemed = 28,   // Guest pass has already been redeemed by
 146                                     // account, cannot be acked again
 147    k_EResultDuplicateRequest = 29,   // The request is a duplicate and the action
 148                                     // has already occurred in the past, ignored
 149                                     // this time
 150    k_EResultAlreadyOwned = 30,      // All the games in this guest pass
 151                                     // redemption request are already owned by
 152                                     // the user
 153    k_EResultIPNotFound = 31,         // IP address not found
 154    k_EResultPersistFailed = 32,      // failed to write change to the data store
 155    k_EResultLockingFailed = 33,      // failed to acquire access lock for this
 156                                     // operation
 157    k_EResultLogonSessionReplaced = 34,
 158    k_EResultConnectFailed = 35,
 159    k_EResultHandshakeFailed = 36,
 160    k_EResultIOFailure = 37,
 161    k_EResultRemoteDisconnect = 38,
 162    k_EResultShoppingCartNotFound = 39,   // failed to find the shopping cart
 163                                        // requested
 164    k_EResultBlocked = 40,               // a user didn't allow it
 165    k_EResultIgnored = 41,               // target is ignoring sender
 166    k_EResultNoMatch = 42,               // nothing matching the request found
 167    k_EResultAccountDisabled = 43,
 168    k_EResultServiceReadOnly = 44,      // this service is not accepting content
 169                                        // changes right now
 170    k_EResultAccountNotFeatured = 45,   // account doesn't have value, so this
 171                                        // feature isn't available
 172    k_EResultAdministratorOK = 46,      // allowed to take this action, but only
 173                                        // because requester is admin
 174    k_EResultContentVersion = 47,         // A Version mismatch in content
 175                                        // transmitted within the Steam protocol.
 176    k_EResultTryAnotherCM = 48,         // The current CM can't service the user
 177                                        // making a request, user should try
 178                                        // another.
 179    k_EResultPasswordRequiredToKickSession = 49, // You are already logged in
 180                                        // elsewhere, this cached credential
 181                                        // login has failed.
 182    k_EResultAlreadyLoggedInElsewhere = 50, // You are already logged in
 183                                            // elsewhere, you must wait
 184    k_EResultSuspended = 51,   // Long running operation (content download)
 185                               // suspended/paused
 186    k_EResultCancelled = 52,   // Operation canceled (typically by user:
 187                               // content download)
 188    k_EResultDataCorruption = 53,   // Operation canceled because data is ill
 189                                  // formed or unrecoverable
 190    k_EResultDiskFull = 54,         // Operation canceled - not enough disk space.
 191    k_EResultRemoteCallFailed = 55,   // an remote call or IPC call failed
 192    k_EResultPasswordUnset = 56,      // Password could not be verified as it's
 193                                     // unset server side
 194    k_EResultExternalAccountUnlinked = 57,   // External account (PSN, Facebook...)
 195                                           // is not linked to a Steam account
 196    k_EResultPSNTicketInvalid = 58,         // PSN ticket was invalid
 197    k_EResultExternalAccountAlreadyLinked = 59,   // External account (PSN,
 198          // Facebook...) is already linked to some other account,
 199          // must explicitly request to replace/delete the link first
 200    k_EResultRemoteFileConflict = 60, // The sync cannot resume due to a conflict
 201                                      // between the local and remote files
 202    k_EResultIllegalPassword = 61,    // The requested new password is not legal
 203    k_EResultSameAsPreviousValue = 62,// new value is the same as the old one (
 204                                      // secret question and answer )
 205    k_EResultAccountLogonDenied = 63, // account login denied due to 2nd factor
 206                                      // authentication failure
 207    k_EResultCannotUseOldPassword = 64,   // The requested new password is not
 208                                        // legal
 209    k_EResultInvalidLoginAuthCode = 65,   // account login denied due to auth code
 210                                        // invalid
 211    k_EResultAccountLogonDeniedNoMail = 66, // account login denied due to 2nd
 212                                            // factor auth failure - and no mail
 213                                            // has been sent
 214    k_EResultHardwareNotCapableOfIPT = 67,
 215    k_EResultIPTInitError = 68,
 216    k_EResultParentalControlRestricted = 69,// operation failed due to parental
 217                                            // control restrictions for current
 218                                            // user
 219    k_EResultFacebookQueryError = 70,       // Facebook query returned an error
 220    k_EResultExpiredLoginAuthCode = 71,       // account login denied due to auth
 221                                            // code expired
 222    k_EResultIPLoginRestrictionFailed = 72,
 223    k_EResultAccountLockedDown = 73,
 224    k_EResultAccountLogonDeniedVerifiedEmailRequired = 74,
 225    k_EResultNoMatchingURL = 75,
 226    k_EResultBadResponse = 76,      // parse failure, missing field, etc.
 227    k_EResultRequirePasswordReEntry = 77, // The user cannot complete the action
 228                                          // until they re-enter their password
 229    k_EResultValueOutOfRange = 78,   // the value entered is outside the
 230                                     // acceptable range
 231    k_EResultUnexpectedError = 79,   // something happened that we didn't expect
 232                                     // to ever happen
 233    k_EResultDisabled = 80,            // The requested service has been configured
 234                                     // to be unavailable
 235    k_EResultInvalidCEGSubmission = 81,   // The set of files submitted to the CEG
 236                                        // server are not valid !
 237    k_EResultRestrictedDevice = 82,      // The device being used is not allowed
 238                                        // to perform this action
 239    k_EResultRegionLocked = 83,         // The action could not be complete
 240                                        // because it is region restricted
 241    k_EResultRateLimitExceeded = 84,   // Temporary rate limit exceeded, try
 242                                     // again later, different from
 243                                     // k_EResultLimitExceeded which may be
 244                                     // permanent
 245    k_EResultAccountLoginDeniedNeedTwoFactor = 85, // Need two-factor code to
 246                                                   // login
 247    k_EResultItemDeleted = 86,   // The thing we're trying to access has been
 248                               // deleted
 249    k_EResultAccountLoginDeniedThrottle = 87,   // login attempt failed, try to
 250                                              // throttle response to possible
 251                                              // attacker
 252    k_EResultTwoFactorCodeMismatch = 88,      // two factor code mismatch
 253    k_EResultTwoFactorActivationCodeMismatch = 89,   // activation code for
 254                                                    // two-factor didn't match
 255    k_EResultAccountAssociatedToMultiplePartners = 90,   // account has been
 256                                           // associated with multiple partners
 257    k_EResultNotModified = 91,               // data not modified
 258    k_EResultNoMobileDevice = 92,   // the account does not have a mobile
 259                                  // device associated with it
 260    k_EResultTimeNotSynced = 93,   // the time presented is out of range or
 261                                  // tolerance
 262    k_EResultSmsCodeFailed = 94,   // SMS code failure (no match, none pending,
 263                                  // etc.)
 264    k_EResultAccountLimitExceeded = 95,   // Too many accounts access this resource
 265    k_EResultAccountActivityLimitExceeded = 96,// Too many changes to
 266                                               // this account
 267    k_EResultPhoneActivityLimitExceeded = 97,   // Too many changes to this phone
 268    k_EResultRefundToWallet = 98,   // Cannot refund to payment method, must use
 269                                  // wallet
 270    k_EResultEmailSendFailure = 99,   // Cannot send an email
 271    k_EResultNotSettled = 100,   // Can't perform operation till payment
 272                               // has settled
 273    k_EResultNeedCaptcha = 101,// Needs to provide a valid captcha
 274    k_EResultGSLTDenied = 102,   // a game server login token owned by this token's
 275                               // owner has been banned
 276    k_EResultGSOwnerDenied = 103,   // game server owner is denied for other reason
 277                         // (account lock, community ban, vac ban, missing phone)
 278    k_EResultInvalidItemType = 104,// the type of thing we were requested to act
 279                                   // on is invalid
 280    k_EResultIPBanned = 105,// the ip address has been banned from taking this
 281                            // action
 282    k_EResultGSLTExpired = 106,// this token has expired from disuse; can be
 283                               // reset for use
 284    k_EResultInsufficientFunds = 107,// user doesn't have enough wallet funds to
 285                                     // complete the action
 286    k_EResultTooManyPending = 108,   // There are too many of this thing pending
 287                                     // already
 288    k_EResultNoSiteLicensesFound = 109,   // No site licenses found
 289    k_EResultWGNetworkSendExceeded = 110,// the WG couldn't send a response
 290                               // because we exceeded max network send size
 291    k_EResultAccountNotFriends = 111, // the user is not mutually friends
 292    k_EResultLimitedUserAccount = 112,// the user is limited
 293    k_EResultCantRemoveItem = 113,    // item can't be removed
 294    k_EResultAccountDeleted = 114,    // account has been deleted
 295    k_EResultExistingUserCancelledLicense = 115,
 296    // A license for this already exists, but cancelled
 297    k_EResultCommunityCooldown = 116,   // access is denied because of a
 298             // community cooldown (probably from support profile data resets)
 299    k_EResultNoLauncherSpecified = 117,   // No launcher was specified, but a
 300    // launcher was needed to choose correct realm for operation.
 301    k_EResultMustAgreeToSSA = 118,// User must agree to china SSA or global SSA
 302                                  // before login
 303    k_EResultLauncherMigrated = 119,   // The specified launcher type is no longer
 304                            // supported; the user should be directed elsewhere
 305    k_EResultSteamRealmMismatch = 120,   // The user's realm does not match the
 306                                        // realm of the requested resource
 307    k_EResultInvalidSignature = 121,         // signature check did not match
 308    k_EResultParseFailure = 122,      // Failed to parse input
 309    k_EResultNoVerifiedPhone = 123,   // account does not have a verified phone
 310                                     // number
 311 } EResult;
 312
 313 typedef struct {
 314
 315    HSteamUser m_hSteamUser;    // Specific user to whom this callback applies.
 316    int m_iCallback;
 317    u8 *m_pubParam;       // Points to the callback structure
 318    int m_cubParam;       // Size of the data pointed to by m_pubParam
 319
 320 } CallbackMsg_t;
 321
 322 typedef struct {
 323
 324    SteamAPICall_t m_hAsyncCall;
 325    int m_iCallback;
 326    u32 m_cubParam;
 327
 328 } SteamAPICallCompleted_t;
 329 enum { k_iSteamAPICallCompleted = k_iSteamUtilsCallbacks + 3 };
 330
 331 // Steam universes.  Each universe is a self-contained Steam instance.
 332 typedef enum EUniverse {
 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 #pragma pack( push, 1 )
 343 struct SteamIDComponent_t
 344 {
 345 #ifdef VALVE_BIG_ENDIAN
 346    EUniverse_t       m_EUniverse : 8
 347    unsigned int      m_EAccountType : 4;
 348    unsigned int      m_unAccountInstance : 20;
 349    u32               m_unAccountID : 32;
 350 #else
 351    u32               m_unAccountID : 32;
 352    unsigned int      m_unAccountInstance : 20;
 353    unsigned int      m_EAccountType : 4;
 354    EUniverse_t       m_EUniverse : 8;
 355 #endif
 356 };
 357
 358 typedef struct
 359 {
 360    // 64 bits total
 361    union
 362    {
 363       struct SteamIDComponent_t m_comp;
 364       u64 m_unAll64Bits;
 365    };
 366 }
 367 CSteamID;
 368
 369 typedef struct GameID_t
 370 {
 371 #ifdef VALVE_BIG_ENDIAN
 372    unsigned int m_nModID : 32;
 373    unsigned int m_nType : 8;
 374    unsigned int m_nAppID : 24;
 375 #else
 376    unsigned int m_nAppID : 24;
 377    unsigned int m_nType : 8;
 378    unsigned int m_nModID : 32;
 379 #endif
 380 } CGameID;
 381 #pragma pack( pop )
 382 #pragma pack( pop )
 383
 384 /*
 385  * Standard login
 386  * =============================================================================
 387  */
 388
 389 int   SteamAPI_RestartAppIfNecessary( u32 unOwnAppID );
 390 int   SteamAPI_Init(void);
 391 void  SteamAPI_Shutdown(void);
 392
 393 /*
 394  * Server mode login
 395  * =============================================================================
 396  */
 397
 398 typedef enum EServerMode EServerMode;
 399 enum EServerMode
 400 {
 401    eServerModeInvalid = 0,
 402    eServerModeNoAuthentication = 1,
 403    eServerModeAuthentication = 2,
 404    eServerModeAuthenticationAndSecure = 3,
 405 };
 406
 407 int SteamInternal_GameServer_Init( u32 unIP, u16 usLegacySteamPort,
 408                                    u16 usGamePort, u16 usQueryPort,
 409                                    EServerMode eServerMode,
 410                                    const char *pchVersionString );
 411
 412 /* Initialize SteamGameServer client and interface objects, and set server
 413  * properties which may not be changed.
 414  * After calling this function, you should set any additional server parameters,
 415  * and then call ISteamGameServer::LogOnAnonymous() or ISteamGameServer::LogOn()
 416  *
 417  * - unIP will usually be zero.  If you are on a machine with multiple IP
 418  *   addresses, you can pass a non-zero value here and the relevant sockets will
 419  *   be bound to that IP.  This can be used to ensure that the IP you desire is
 420  *   the one used in the server browser.
 421  * - usGamePort is the port that clients will connect to for gameplay. You will
 422  *   usually open up your own socket bound to this port.
 423  * - usQueryPort is the port that will manage server browser related duties and
 424  *   info pings from clients.  If you pass STEAMGAMESERVER_QUERY_PORT_SHARED for
 425  *   usQueryPort, then it will use "GameSocketShare" mode, which means that the
 426  *   game is responsible for sending and receiving UDP packets for the master
 427  *   server updater.  (See ISteamGameServer::HandleIncomingPacket and
 428  *   ISteamGameServer::GetNextOutgoingPacket.)
 429  * - The version string should be in the form x.x.x.x, and is used by the master
 430  *   server to detect when the server is out of date. (Only servers with the
 431  *   latest version will be listed.)
 432  */
 433 int   SteamGameServer_Init( u32 unIP, u16 usGamePort, u16 usQueryPort,
 434                             EServerMode eServerMode,
 435                             const char *pchVersionString )
 436 {
 437    return SteamInternal_GameServer_Init( unIP, 0, usGamePort, usQueryPort,
 438                                          eServerMode, pchVersionString );
 439 }
 440
 441
 442 void *SteamAPI_SteamGameServer_v014(void);
 443 void *SteamAPI_SteamGameServer(void)
 444 {
 445    return SteamAPI_SteamGameServer_v014();
 446 }
 447
 448 void SteamAPI_ISteamGameServer_LogOnAnonymous( void* self );
 449
 450 void SteamGameServer_Shutdown(void);
 451
 452 int  SteamGameServer_BSecure(void);
 453 u64  SteamGameServer_GetSteamID(void);
 454
 455 /*
 456  * Async callbacks
 457  * =============================================================================
 458  */
 459
 460 typedef struct vg_steam_async_call vg_steam_async_call;
 461 typedef struct vg_steam_callback_handler vg_steam_callback_handler;
 462
 463 struct vg_steam{
 464    struct vg_steam_async_call{
 465       SteamAPICall_t id;
 466       void *userdata;
 467
 468       void (*p_handler)( void *result, void *userdata );
 469    }
 470    calls[4];
 471    u32 call_count;
 472
 473    struct vg_steam_callback_handler{
 474       u32 callback_id;
 475       void (*p_handler)( CallbackMsg_t *msg );
 476    }
 477    callback_handlers[32];
 478    u32 callback_handler_count;
 479 }
 480 static vg_steam;
 481
 482 vg_steam_async_call *vg_alloc_async_steam_api_call(void)
 483 {
 484    if( vg_steam.call_count == vg_list_size(vg_steam.calls) ){
 485       vg_fatal_error( "Maximum concurrent API calls exceeded (%u)\n",
 486                       vg_steam.call_count );
 487    }
 488
 489    return &vg_steam.calls[ vg_steam.call_count ++ ];
 490 }
 491
 492 /*
 493  * Regular callbacks
 494  * =============================================================================
 495  */
 496
 497 static void steam_register_callback( u32 id,
 498                                      void (*p_handler)( CallbackMsg_t *msg ) )
 499 {
 500    if( vg_steam.callback_handler_count ==
 501        vg_list_size(vg_steam.callback_handlers) )
 502    {
 503       vg_fatal_error( "Too many steam callback handlers registered (%u)\n",
 504                       vg_steam.callback_handler_count );
 505    }
 506
 507    vg_steam_callback_handler *handler =
 508       &vg_steam.callback_handlers[ vg_steam.callback_handler_count ++ ];
 509
 510    handler->p_handler = p_handler;
 511    handler->callback_id = id;
 512 }
 513
 514 /*
 515  * Event loop
 516  * =============================================================================
 517  */
 518 HSteamPipe SteamAPI_GetHSteamPipe(void);
 519 HSteamPipe SteamGameServer_GetHSteamPipe(void);
 520 HSteamUser SteamAPI_GetHSteamUser(void);
 521 void   SteamAPI_ManualDispatch_Init(void);
 522 void    SteamAPI_ManualDispatch_RunFrame( HSteamPipe hSteamPipe );
 523 steamapi_bool  SteamAPI_ManualDispatch_GetNextCallback( HSteamPipe hSteamPipe,
 524                                                CallbackMsg_t *pCallbackMsg );
 525 void   SteamAPI_ManualDispatch_FreeLastCallback( HSteamPipe hSteamPipe );
 526 steamapi_bool  SteamAPI_ManualDispatch_GetAPICallResult( HSteamPipe hSteamPipe,
 527          SteamAPICall_t hSteamAPICall, void *pCallback, int cubCallback,
 528          int iCallbackExpected, steamapi_bool *pbFailed );
 529
 530 void    SteamAPI_ReleaseCurrentThreadMemory(void);
 531
 532 static void steamworks_process_api_call( HSteamPipe pipe,
 533                                          CallbackMsg_t *callback )
 534 {
 535    SteamAPICallCompleted_t *pCallCompleted =
 536       (SteamAPICallCompleted_t *)callback->m_pubParam;
 537
 538    steamapi_bool bFailed;
 539    void *call_data = alloca( pCallCompleted->m_cubParam );
 540
 541    if( SteamAPI_ManualDispatch_GetAPICallResult(
 542       pipe,
 543       pCallCompleted->m_hAsyncCall,
 544       call_data,
 545       pCallCompleted->m_cubParam,
 546       pCallCompleted->m_iCallback,
 547       &bFailed )
 548    )
 549    {
 550       /*
 551        * Dispatch the call result to the registered handler(s) for the
 552        * call identified by pCallCompleted->m_hAsyncCall
 553        */
 554
 555       vg_info( "steamworks_event::api_call_completed( %lu )\n",
 556                   pCallCompleted->m_hAsyncCall );
 557
 558       int j=0;
 559       for( int i=0; i<vg_steam.call_count; i++ ){
 560          if( vg_steam.calls[i].id != pCallCompleted->m_hAsyncCall ){
 561             vg_steam.calls[j ++] = vg_steam.calls[i];
 562          }
 563          else{
 564             vg_steam_async_call *call = &vg_steam.calls[i];
 565             call->p_handler( call_data, call->userdata );
 566          }
 567       }
 568
 569       if( vg_steam.call_count == j ){
 570          vg_error( "No tracker was register for API call\n" );
 571       }
 572
 573       vg_steam.call_count = j;
 574    }
 575    else
 576    {
 577 #if 0
 578       typedef enum ESteamAPICallFailure
 579       {
 580          k_ESteamAPICallFailureNone = -1,
 581          k_ESteamAPICallFailureSteamGone = 0,
 582          k_ESteamAPICallFailureNetworkFailure = 1,
 583          k_ESteamAPICallFailureInvalidHandle = 2,
 584          k_ESteamAPICallFailureMismatchedCallback = 3,
 585       }
 586
 587       ESteamAPICallFailure;
 588       ESteamAPICallFailure fail_why =
 589       SteamAPI_ISteamUtils_GetAPICallFailureReason(
 590             steam_api_classes.utils, pCallCompleted->m_hAsyncCall );
 591
 592       vg_error( "steamworks_event: error getting call result on"
 593                 "%lu (code %d)\n",
 594                 pCallCompleted->m_hAsyncCall, fail_why );
 595 #endif
 596    }
 597 }
 598
 599 static void steamworks_event_loop( HSteamPipe pipe )
 600 {
 601    SteamAPI_ManualDispatch_RunFrame( pipe );
 602    CallbackMsg_t callback;
 603
 604    while( SteamAPI_ManualDispatch_GetNextCallback( pipe, &callback ) ){
 605       vg_low( "steamworks_event::callback( %i )\n", callback.m_iCallback );
 606
 607       /* Check for dispatching API call results */
 608       if( callback.m_iCallback == k_iSteamAPICallCompleted ){
 609          steamworks_process_api_call( pipe, &callback );
 610       }
 611       else {
 612          /*
 613           * Look at callback.m_iCallback to see what kind of callback it is,
 614           * and dispatch to appropriate handler(s)
 615           * void *data = callback.m_pubParam;
 616           */
 617
 618          for( int i=0; i<vg_steam.callback_handler_count; i++ ){
 619             vg_steam_callback_handler *handler = &vg_steam.callback_handlers[i];
 620             if( handler->callback_id == callback.m_iCallback ){
 621                handler->p_handler( &callback );
 622                break;
 623             }
 624          }
 625       }
 626
 627       SteamAPI_ManualDispatch_FreeLastCallback( pipe );
 628    }
 629 }
 630
 631 /*
 632  * This is required to run the server outside of steamcmd environment.
 633  * It can be any appid but idealy the one that is actually your game
 634  */
 635 static void steamworks_ensure_txt( const char *appid_str )
 636 {
 637    FILE *txt = fopen("steam_appid.txt", "w");
 638    fputs( appid_str, txt );
 639    fclose( txt );
 640 }
 641
 642 #endif /* VG_STEAM_H */