Yucom/lsteamclient/steamworks_sdk_109/steam_api.h

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2018-01-18 17:24:05 +01:00
//====== Copyright 1996-2008, Valve Corporation, All rights reserved. =======
//
// Purpose:
//
//=============================================================================
#ifndef STEAM_API_H
#define STEAM_API_H
#ifdef _WIN32
#pragma once
#endif
#include "isteamclient.h"
#include "isteamuser.h"
#include "isteamfriends.h"
#include "isteamutils.h"
#include "isteammatchmaking.h"
#include "isteamuserstats.h"
#include "isteamapps.h"
#include "isteamnetworking.h"
#include "isteamremotestorage.h"
// Steam API export macro
#if defined( _WIN32 ) && !defined( _X360 )
#if defined( STEAM_API_EXPORTS )
#define S_API extern "C" __declspec( dllexport )
#elif defined( STEAM_API_NODLL )
#define S_API extern "C"
#else
#define S_API extern "C" __declspec( dllimport )
#endif // STEAM_API_EXPORTS
#elif defined( GNUC )
#if defined( STEAM_API_EXPORTS )
#define S_API extern "C" __attribute__ ((visibility("default")))
#else
#define S_API extern "C"
#endif // STEAM_API_EXPORTS
#else // !WIN32
#if defined( STEAM_API_EXPORTS )
#define S_API extern "C"
#else
#define S_API extern "C"
#endif // STEAM_API_EXPORTS
#endif
//----------------------------------------------------------------------------------------------------------------------------------------------------------//
// Steam API setup & shutdown
//
// These functions manage loading, initializing and shutdown of the steamclient.dll
//
//----------------------------------------------------------------------------------------------------------------------------------------------------------//
// S_API void SteamAPI_Init(); (see below)
S_API void SteamAPI_Shutdown();
// checks if a local Steam client is running
S_API bool SteamAPI_IsSteamRunning();
// Detects if your executable was launched through the Steam client, and restarts your game through
// the client if necessary. The Steam client will be started if it is not running.
//
// Returns: true if your executable was NOT launched through the Steam client. This function will
// then start your application through the client. Your current process should exit.
//
// false if your executable was started through the Steam client or a steam_appid.txt file
// is present in your game's directory (for development). Your current process should continue.
//
// NOTE: This function should be used only if you are using CEG or not using Steam's DRM. Once applied
// to your executable, Steam's DRM will handle restarting through Steam if necessary.
S_API bool SteamAPI_RestartAppIfNecessary( uint32 unOwnAppID );
// crash dump recording functions
S_API void SteamAPI_WriteMiniDump( uint32 uStructuredExceptionCode, void* pvExceptionInfo, uint32 uBuildID );
S_API void SteamAPI_SetMiniDumpComment( const char *pchMsg );
// this should be called before the game initialized the steam APIs
// pchDate should be of the format "Mmm dd yyyy" (such as from the __DATE__ macro )
// pchTime should be of the format "hh:mm:ss" (such as from the __TIME__ macro )
S_API void SteamAPI_UseBreakpadCrashHandler( char const *pchVersion, char const *pchDate, char const *pchTime );
// interface pointers, configured by SteamAPI_Init()
S_API ISteamClient *SteamClient();
//
// VERSION_SAFE_STEAM_API_INTERFACES is usually not necessary, but it provides safety against releasing
// new steam_api.dll's without recompiling/rereleasing modules that use it.
//
// If you use VERSION_SAFE_STEAM_API_INTERFACES, then you should call SteamAPI_InitSafe(). Also, to get the
// Steam interfaces, you must create and Init() a CSteamAPIContext (below) and use the interfaces in there.
//
// If you don't use VERSION_SAFE_STEAM_API_INTERFACES, then you can use SteamAPI_Init() and the SteamXXXX()
// functions below to get at the Steam interfaces.
//
#ifdef VERSION_SAFE_STEAM_API_INTERFACES
S_API bool SteamAPI_InitSafe();
#else
S_API bool SteamAPI_Init();
S_API ISteamUser *SteamUser();
S_API ISteamFriends *SteamFriends();
S_API ISteamUtils *SteamUtils();
S_API ISteamMatchmaking *SteamMatchmaking();
S_API ISteamUserStats *SteamUserStats();
S_API ISteamApps *SteamApps();
S_API ISteamNetworking *SteamNetworking();
S_API ISteamMatchmakingServers *SteamMatchmakingServers();
S_API ISteamRemoteStorage *SteamRemoteStorage();
#endif // VERSION_SAFE_STEAM_API_INTERFACES
//----------------------------------------------------------------------------------------------------------------------------------------------------------//
// steam callback helper functions
//
// The following classes/macros are used to be able to easily multiplex callbacks
// from the Steam API into various objects in the app in a thread-safe manner
//
// These functors are triggered via the SteamAPI_RunCallbacks() function, mapping the callback
// to as many functions/objects as are registered to it
//----------------------------------------------------------------------------------------------------------------------------------------------------------//
S_API void SteamAPI_RunCallbacks();
// functions used by the utility CCallback objects to receive callbacks
S_API void SteamAPI_RegisterCallback( class CCallbackBase *pCallback, int iCallback );
S_API void SteamAPI_UnregisterCallback( class CCallbackBase *pCallback );
// functions used by the utility CCallResult objects to receive async call results
S_API void SteamAPI_RegisterCallResult( class CCallbackBase *pCallback, SteamAPICall_t hAPICall );
S_API void SteamAPI_UnregisterCallResult( class CCallbackBase *pCallback, SteamAPICall_t hAPICall );
//-----------------------------------------------------------------------------
// Purpose: base for callbacks,
// used only by CCallback, shouldn't be used directly
//-----------------------------------------------------------------------------
class CCallbackBase
{
public:
CCallbackBase() { m_nCallbackFlags = 0; m_iCallback = 0; }
// don't add a virtual destructor because we export this binary interface across dll's
virtual void Run( void *pvParam ) = 0;
virtual void Run( void *pvParam, bool bIOFailure, SteamAPICall_t hSteamAPICall ) = 0;
int GetICallback() { return m_iCallback; }
virtual int GetCallbackSizeBytes() = 0;
protected:
enum { k_ECallbackFlagsRegistered = 0x01, k_ECallbackFlagsGameServer = 0x02 };
uint8 m_nCallbackFlags;
int m_iCallback;
friend class CCallbackMgr;
};
//-----------------------------------------------------------------------------
// Purpose: maps a steam async call result to a class member function
// template params: T = local class, P = parameter struct
//-----------------------------------------------------------------------------
template< class T, class P >
class CCallResult : private CCallbackBase
{
public:
typedef void (T::*func_t)( P*, bool );
CCallResult()
{
m_hAPICall = k_uAPICallInvalid;
m_pObj = NULL;
m_Func = NULL;
m_iCallback = P::k_iCallback;
}
void Set( SteamAPICall_t hAPICall, T *p, func_t func )
{
if ( m_hAPICall )
SteamAPI_UnregisterCallResult( this, m_hAPICall );
m_hAPICall = hAPICall;
m_pObj = p;
m_Func = func;
if ( hAPICall )
SteamAPI_RegisterCallResult( this, hAPICall );
}
bool IsActive() const
{
return ( m_hAPICall != k_uAPICallInvalid );
}
void Cancel()
{
if ( m_hAPICall != k_uAPICallInvalid )
{
SteamAPI_UnregisterCallResult( this, m_hAPICall );
m_hAPICall = k_uAPICallInvalid;
}
}
~CCallResult()
{
Cancel();
}
private:
virtual void Run( void *pvParam )
{
m_hAPICall = k_uAPICallInvalid; // caller unregisters for us
(m_pObj->*m_Func)( (P *)pvParam, false );
}
void Run( void *pvParam, bool bIOFailure, SteamAPICall_t hSteamAPICall )
{
if ( hSteamAPICall == m_hAPICall )
{
m_hAPICall = k_uAPICallInvalid; // caller unregisters for us
(m_pObj->*m_Func)( (P *)pvParam, bIOFailure );
}
}
int GetCallbackSizeBytes()
{
return sizeof( P );
}
SteamAPICall_t m_hAPICall;
T *m_pObj;
func_t m_Func;
};
//-----------------------------------------------------------------------------
// Purpose: maps a steam callback to a class member function
// template params: T = local class, P = parameter struct
//-----------------------------------------------------------------------------
template< class T, class P, bool bGameServer >
class CCallback : private CCallbackBase
{
public:
typedef void (T::*func_t)( P* );
// If you can't support constructing a callback with the correct parameters
// then uncomment the empty constructor below and manually call
// ::Register() for your object
// Or, just call the regular constructor with (NULL, NULL)
// CCallback() {}
// constructor for initializing this object in owner's constructor
CCallback( T *pObj, func_t func ) : m_pObj( pObj ), m_Func( func )
{
if ( pObj && func )
Register( pObj, func );
}
~CCallback()
{
if ( m_nCallbackFlags & k_ECallbackFlagsRegistered )
Unregister();
}
// manual registration of the callback
void Register( T *pObj, func_t func )
{
if ( !pObj || !func )
return;
if ( m_nCallbackFlags & k_ECallbackFlagsRegistered )
Unregister();
if ( bGameServer )
{
m_nCallbackFlags |= k_ECallbackFlagsGameServer;
}
m_pObj = pObj;
m_Func = func;
// SteamAPI_RegisterCallback sets k_ECallbackFlagsRegistered
SteamAPI_RegisterCallback( this, P::k_iCallback );
}
void Unregister()
{
// SteamAPI_UnregisterCallback removes k_ECallbackFlagsRegistered
SteamAPI_UnregisterCallback( this );
}
void SetGameserverFlag() { m_nCallbackFlags |= k_ECallbackFlagsGameServer; }
private:
virtual void Run( void *pvParam )
{
(m_pObj->*m_Func)( (P *)pvParam );
}
virtual void Run( void *pvParam, bool, SteamAPICall_t )
{
(m_pObj->*m_Func)( (P *)pvParam );
}
int GetCallbackSizeBytes()
{
return sizeof( P );
}
T *m_pObj;
func_t m_Func;
};
// Allows you to defer registration of the callback
template< class T, class P, bool bGameServer >
class CCallbackManual : public CCallback< T, P, bGameServer >
{
public:
CCallbackManual() : CCallback< T, P, bGameServer >( NULL, NULL ) {}
};
// utility macro for declaring the function and callback object together
#define STEAM_CALLBACK( thisclass, func, param, var ) CCallback< thisclass, param, false > var; void func( param *pParam )
// same as above, but lets you defer the callback binding by calling Register later
#define STEAM_CALLBACK_MANUAL( thisclass, func, param, var ) CCallbackManual< thisclass, param, false > var; void func( param *pParam )
#ifdef _WIN32
// disable this warning; this pattern need for steam callback registration
#pragma warning( disable: 4355 ) // 'this' : used in base member initializer list
#endif
//----------------------------------------------------------------------------------------------------------------------------------------------------------//
// steamclient.dll private wrapper functions
//
// The following functions are part of abstracting API access to the steamclient.dll, but should only be used in very specific cases
//----------------------------------------------------------------------------------------------------------------------------------------------------------//
// pumps out all the steam messages, calling the register callback
S_API void Steam_RunCallbacks( HSteamPipe hSteamPipe, bool bGameServerCallbacks );
// register the callback funcs to use to interact with the steam dll
S_API void Steam_RegisterInterfaceFuncs( void *hModule );
// returns the HSteamUser of the last user to dispatch a callback
S_API HSteamUser Steam_GetHSteamUserCurrent();
// returns the filename path of the current running Steam process, used if you need to load an explicit steam dll by name
S_API const char *SteamAPI_GetSteamInstallPath();
// returns the pipe we are communicating to Steam with
S_API HSteamPipe SteamAPI_GetHSteamPipe();
// sets whether or not Steam_RunCallbacks() should do a try {} catch (...) {} around calls to issuing callbacks
S_API void SteamAPI_SetTryCatchCallbacks( bool bTryCatchCallbacks );
// backwards compat export, passes through to SteamAPI_ variants
S_API HSteamPipe GetHSteamPipe();
S_API HSteamUser GetHSteamUser();
#ifdef VERSION_SAFE_STEAM_API_INTERFACES
//----------------------------------------------------------------------------------------------------------------------------------------------------------//
// VERSION_SAFE_STEAM_API_INTERFACES uses CSteamAPIContext to provide interfaces to each module in a way that
// lets them each specify the interface versions they are compiled with.
//
// It's important that these stay inlined in the header so the calling module specifies the interface versions
// for whatever Steam API version it has.
//----------------------------------------------------------------------------------------------------------------------------------------------------------//
S_API HSteamUser SteamAPI_GetHSteamUser();
class CSteamAPIContext
{
public:
CSteamAPIContext();
void Clear();
bool Init();
ISteamUser* SteamUser() { return m_pSteamUser; }
ISteamFriends* SteamFriends() { return m_pSteamFriends; }
ISteamUtils* SteamUtils() { return m_pSteamUtils; }
ISteamMatchmaking* SteamMatchmaking() { return m_pSteamMatchmaking; }
ISteamUserStats* SteamUserStats() { return m_pSteamUserStats; }
ISteamApps* SteamApps() { return m_pSteamApps; }
ISteamMatchmakingServers* SteamMatchmakingServers() { return m_pSteamMatchmakingServers; }
ISteamNetworking* SteamNetworking() { return m_pSteamNetworking; }
ISteamRemoteStorage* SteamRemoteStorage() { return m_pSteamRemoteStorage; }
private:
ISteamUser *m_pSteamUser;
ISteamFriends *m_pSteamFriends;
ISteamUtils *m_pSteamUtils;
ISteamMatchmaking *m_pSteamMatchmaking;
ISteamUserStats *m_pSteamUserStats;
ISteamApps *m_pSteamApps;
ISteamMatchmakingServers *m_pSteamMatchmakingServers;
ISteamNetworking *m_pSteamNetworking;
ISteamRemoteStorage *m_pSteamRemoteStorage;
};
inline CSteamAPIContext::CSteamAPIContext()
{
Clear();
}
inline void CSteamAPIContext::Clear()
{
m_pSteamUser = NULL;
m_pSteamFriends = NULL;
m_pSteamUtils = NULL;
m_pSteamMatchmaking = NULL;
m_pSteamUserStats = NULL;
m_pSteamApps = NULL;
m_pSteamMatchmakingServers = NULL;
m_pSteamNetworking = NULL;
m_pSteamRemoteStorage = NULL;
}
// This function must be inlined so the module using steam_api.dll gets the version names they want.
inline bool CSteamAPIContext::Init()
{
if ( !SteamClient() )
return false;
HSteamUser hSteamUser = SteamAPI_GetHSteamUser();
HSteamPipe hSteamPipe = SteamAPI_GetHSteamPipe();
m_pSteamUser = SteamClient()->GetISteamUser( hSteamUser, hSteamPipe, STEAMUSER_INTERFACE_VERSION );
if ( !m_pSteamUser )
return false;
m_pSteamFriends = SteamClient()->GetISteamFriends( hSteamUser, hSteamPipe, STEAMFRIENDS_INTERFACE_VERSION );
if ( !m_pSteamFriends )
return false;
m_pSteamUtils = SteamClient()->GetISteamUtils( hSteamPipe, STEAMUTILS_INTERFACE_VERSION );
if ( !m_pSteamUtils )
return false;
m_pSteamMatchmaking = SteamClient()->GetISteamMatchmaking( hSteamUser, hSteamPipe, STEAMMATCHMAKING_INTERFACE_VERSION );
if ( !m_pSteamMatchmaking )
return false;
m_pSteamMatchmakingServers = SteamClient()->GetISteamMatchmakingServers( hSteamUser, hSteamPipe, STEAMMATCHMAKINGSERVERS_INTERFACE_VERSION );
if ( !m_pSteamMatchmakingServers )
return false;
m_pSteamUserStats = SteamClient()->GetISteamUserStats( hSteamUser, hSteamPipe, STEAMUSERSTATS_INTERFACE_VERSION );
if ( !m_pSteamUserStats )
return false;
m_pSteamApps = SteamClient()->GetISteamApps( hSteamUser, hSteamPipe, STEAMAPPS_INTERFACE_VERSION );
if ( !m_pSteamApps )
return false;
m_pSteamNetworking = SteamClient()->GetISteamNetworking( hSteamUser, hSteamPipe, STEAMNETWORKING_INTERFACE_VERSION );
if ( !m_pSteamNetworking )
return false;
m_pSteamRemoteStorage = SteamClient()->GetISteamRemoteStorage( hSteamUser, hSteamPipe, STEAMREMOTESTORAGE_INTERFACE_VERSION );
if ( !m_pSteamRemoteStorage )
return false;
return true;
}
#endif // VERSION_SAFE_STEAM_API_INTERFACES
#endif // STEAM_API_H