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CWE-ou-minkata/Sources/Plasma/NucleusLib/pnAsyncCore/Private/pnAcIo.h

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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
/*****************************************************************************
*
* $/Plasma20/Sources/Plasma/NucleusLib/pnAsyncCore/Private/pnAcIo.h
*
***/
#ifdef PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNASYNCCORE_PRIVATE_PNACIO_H
#error "Header $/Plasma20/Sources/Plasma/NucleusLib/pnAsyncCore/Private/pnAcIo.h included more than once"
#endif
#define PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNASYNCCORE_PRIVATE_PNACIO_H
/****************************************************************************
*
* Global types and constants
*
***/
typedef struct AsyncIdStruct * AsyncId;
typedef struct AsyncFileStruct * AsyncFile;
typedef struct AsyncSocketStruct * AsyncSocket;
typedef struct AsyncCancelIdStruct * AsyncCancelId;
const unsigned kAsyncSocketBufferSize = 1460;
enum EFileError {
kFileSuccess,
kFileErrorInvalidParameter,
kFileErrorFileNotFound,
kFileErrorPathNotFound,
kFileErrorAccessDenied,
kFileErrorSharingViolation,
kNumFileErrors
};
EFileError AsyncGetLastFileError ();
const wchar_t * FileErrorToString (EFileError error);
/****************************************************************************
*
* File notifications
*
***/
enum EAsyncNotifyFile {
kNotifyFileFlush,
kNotifyFileRead,
kNotifyFileWrite,
kNotifyFileSequence,
kNumFileNotifications
};
struct AsyncNotifyFile {
void * param;
AsyncId asyncId;
};
struct AsyncNotifyFileConnect : AsyncNotifyFile {
uint64_t fileSize;
uint64_t fileLastWriteTime;
};
struct AsyncNotifyFileFlush : AsyncNotifyFile {
EFileError error;
uint64_t truncateSize;
};
struct AsyncNotifyFileRead : AsyncNotifyFile {
uint64_t offset;
uint8_t * buffer;
unsigned bytes;
};
typedef AsyncNotifyFileRead AsyncNotifyFileWrite;
struct AsyncNotifyFileSequence : AsyncNotifyFile {
// no additional fields
};
typedef void (* FAsyncNotifyFileProc)(
AsyncFile file,
EAsyncNotifyFile code,
AsyncNotifyFile * notify,
void ** userState
);
/****************************************************************************
*
* File I/O functions
*
***/
// Desired access
const unsigned kAsyncFileReadAccess = 0x80000000;
const unsigned kAsyncFileWriteAccess = 0x40000000;
// Open mode (creation disposition)
const unsigned kAsyncFileModeCreateNew = 1;
const unsigned kAsyncFileModeCreateAlways = 2;
const unsigned kAsyncFileModeOpenExisting = 3;
const unsigned kAsyncFileModeOpenAlways = 4;
// Share mode flags
const unsigned kAsyncFileShareRead = 0x00000001;
const unsigned kAsyncFileShareWrite = 0x00000002;
AsyncFile AsyncFileOpen (
const wchar_t fullPath[],
FAsyncNotifyFileProc notifyProc,
EFileError * error,
unsigned desiredAccess,
unsigned openMode,
unsigned shareModeFlags, // optional
void * userState, // optional
uint64_t * fileSize, // optional
uint64_t * fileLastWriteTime // optional
);
// Use with AsyncFileDelete/AsyncFileFlushBuffers
const uint64_t kAsyncFileDontTruncate = (uint64_t) -1;
// This function may ONLY be called when there is no outstanding I/O against a file
// and no more I/O will be initiated against it. This function guarantees that it
// will close the system file handle before it returns to that another open against
// the same filename can succeed.
void AsyncFileClose (
AsyncFile file,
uint64_t truncateSize
);
void AsyncFileSetLastWriteTime (
AsyncFile file,
uint64_t lastWriteTime
);
uint64_t AsyncFileGetLastWriteTime (
const wchar_t fileName[]
);
// Truncation occurs atomically, any writes which occur after
// AsyncFileFlushBuffers will be queued until the truncation completes
AsyncId AsyncFileFlushBuffers (
AsyncFile file,
uint64_t truncateSize,
bool notify,
void * param
);
const unsigned kAsyncFileRwNotify = 1<<0;
const unsigned kAsyncFileRwSync = 1<<1;
AsyncId AsyncFileRead (
AsyncFile file,
uint64_t offset,
void * buffer,
unsigned bytes,
unsigned flags,
void * param
);
// Buffer must stay valid until I/O is completed
AsyncId AsyncFileWrite (
AsyncFile file,
uint64_t offset,
const void * buffer,
unsigned bytes,
unsigned flags,
void * param
);
// Inserts a "null operation" into the list of reads and writes. The callback
// will be called when all preceding operations have successfully completed.
AsyncId AsyncFileCreateSequence (
AsyncFile file,
bool notify,
void * param
);
enum EFileSeekFrom {
kFileSeekFromBegin,
kFileSeekFromCurrent,
kFileSeekFromEnd,
kNumFileSeekFroms
};
bool AsyncFileSeek (
AsyncFile file,
uint64_t distance,
EFileSeekFrom seekFrom
);
/****************************************************************************
*
* Socket connect packet
*
***/
#include <PshPack1.h>
struct AsyncSocketConnectPacket {
uint8_t connType;
uint16_t hdrBytes;
uint32_t buildId;
uint32_t buildType;
uint32_t branchId;
Uuid productId;
};
#include <PopPack.h>
/****************************************************************************
*
* Socket event notifications
*
***/
enum EAsyncNotifySocket {
kNotifySocketConnectFailed,
kNotifySocketConnectSuccess,
kNotifySocketDisconnect,
kNotifySocketListenSuccess,
kNotifySocketRead,
kNotifySocketWrite
};
struct AsyncNotifySocket {
void * param;
AsyncId asyncId;
};
struct AsyncNotifySocketConnect : AsyncNotifySocket {
NetAddress localAddr;
NetAddress remoteAddr;
unsigned connType;
};
struct AsyncNotifySocketListen : AsyncNotifySocketConnect {
unsigned buildId;
unsigned buildType;
unsigned branchId;
Uuid productId;
NetAddress addr;
uint8_t * buffer;
unsigned bytes;
unsigned bytesProcessed;
};
struct AsyncNotifySocketRead : AsyncNotifySocket {
uint8_t * buffer;
unsigned bytes;
unsigned bytesProcessed;
};
typedef AsyncNotifySocketRead AsyncNotifySocketWrite;
typedef bool (* FAsyncNotifySocketProc) ( // return false to disconnect
AsyncSocket sock,
EAsyncNotifySocket code,
AsyncNotifySocket * notify,
void ** userState
);
/****************************************************************************
*
* Connection type functions
*
***/
// These codes may not be changed unless ALL servers and clients are
// simultaneously replaced; so basically forget it =)
enum EConnType {
kConnTypeNil = 0,
// For test applications
kConnTypeDebug = 1,
// Binary connections
kConnTypeCliToAuth = 10,
kConnTypeCliToGame = 11,
kConnTypeSrvToAgent = 12,
kConnTypeSrvToMcp = 13,
kConnTypeSrvToVault = 14,
kConnTypeSrvToDb = 15,
kConnTypeCliToFile = 16,
kConnTypeSrvToState = 17,
kConnTypeSrvToLog = 18,
kConnTypeSrvToScore = 19,
kConnTypeCliToCsr = 20,
kConnTypeSimpleNet = 21,
kConnTypeCliToGateKeeper = 22,
// Text connections
kConnTypeAdminInterface = 97, // 'a'
kNumConnTypes
};
COMPILER_ASSERT_HEADER(EConnType, kNumConnTypes < 256);
#define IS_TEXT_CONNTYPE(c) \
(((int)(c)) == kConnTypeAdminInterface)
void AsyncSocketRegisterNotifyProc (
uint8_t connType,
FAsyncNotifySocketProc notifyProc,
unsigned buildId = 0,
unsigned buildType = 0,
unsigned branchId = 0,
const Uuid & productId = kNilGuid
);
void AsyncSocketUnregisterNotifyProc (
uint8_t connType,
FAsyncNotifySocketProc notifyProc,
unsigned buildId = 0,
unsigned buildType = 0,
unsigned branchId = 0,
const Uuid & productId = kNilGuid
);
FAsyncNotifySocketProc AsyncSocketFindNotifyProc (
const uint8_t buffer[],
unsigned bytes,
unsigned * bytesProcessed,
unsigned * connType,
unsigned * buildId,
unsigned * buildType,
unsigned * branchId,
Uuid * productId
);
/****************************************************************************
*
* Socket functions
*
***/
void AsyncSocketConnect (
AsyncCancelId * cancelId,
const NetAddress & netAddr,
FAsyncNotifySocketProc notifyProc,
void * param = nil,
const void * sendData = nil,
unsigned sendBytes = 0,
unsigned connectMs = 0, // 0 => use default value
unsigned localPort = 0 // 0 => don't bind local port
);
// Due to the asynchronous nature of sockets, the connect may complete
// before the cancel does... you have been warned.
void AsyncSocketConnectCancel (
FAsyncNotifySocketProc notifyProc,
AsyncCancelId cancelId
);
void AsyncSocketDisconnect (
AsyncSocket sock,
bool hardClose
);
// This function must only be called after receiving a kNotifySocketDisconnect
void AsyncSocketDelete (AsyncSocket sock);
// Returns false of socket has been closed
bool AsyncSocketSend (
AsyncSocket sock,
const void * data,
unsigned bytes
);
// Buffer must stay valid until I/O has completed
// Returns false if socket has been closed
bool AsyncSocketWrite (
AsyncSocket sock,
const void * buffer,
unsigned bytes,
void * param
);
// This function must only be called from with a socket notification callback.
// Calling at any other time is a crash bug waiting to happen!
void AsyncSocketSetNotifyProc (
AsyncSocket sock,
FAsyncNotifySocketProc notifyProc
);
// A backlog of zero (the default) means that no buffering is performed when
// the TCP send buffer is full, and the send() function will close the socket
// on send fail
void AsyncSocketSetBacklogAlloc (
AsyncSocket sock,
unsigned bufferSize
);
// On failure, returns 0
// On success, returns bound port (if port number was zero, returns assigned port)
// For connections that will use kConnType* connections, set notifyProc = nil;
// the handler will be found when connection packet is received.
// for connections with hard-coded behavior, set the notifyProc here (e.g. for use
// protocols like SNMP on port 25)
unsigned AsyncSocketStartListening (
const NetAddress & listenAddr,
FAsyncNotifySocketProc notifyProc = nil
);
void AsyncSocketStopListening (
const NetAddress & listenAddr,
FAsyncNotifySocketProc notifyProc = nil
);
void AsyncSocketEnableNagling (
AsyncSocket sock,
bool enable
);
/****************************************************************************
*
* Dns functions
*
***/
typedef void (* FAsyncLookupProc) (
void * param,
const wchar_t name[],
unsigned addrCount,
const NetAddress addrs[]
);
void AsyncAddressLookupName (
AsyncCancelId * cancelId,
FAsyncLookupProc lookupProc,
const wchar_t name[],
unsigned port,
void * param
);
void AsyncAddressLookupAddr (
AsyncCancelId * cancelId,
FAsyncLookupProc lookupProc,
const NetAddress & address,
void * param
);
void AsyncAddressLookupCancel (
FAsyncLookupProc lookupProc,
AsyncCancelId cancelId
);