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 //------------------------------------------------------------------------------
 // Copyright (c) 2011-2012 by European Organization for Nuclear Research (CERN)
 // Author: Lukasz Janyst <ljanyst@cern.ch>
 //------------------------------------------------------------------------------
 // XRootD is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Lesser General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 //
 // XRootD 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 Lesser General Public License
 // along with XRootD.  If not, see <http://www.gnu.org/licenses/>.
 //------------------------------------------------------------------------------
 
 #ifndef __XRD_CL_STATUS_HH__
 #define __XRD_CL_STATUS_HH__
 
 #include <cstdint>
 #include <cerrno>
 #include <sstream>
 
 namespace XrdCl
 {
   //----------------------------------------------------------------------------
   // Constants
   //----------------------------------------------------------------------------
   const uint16_t stOK    = 0x0000;  //!< Everything went OK
   const uint16_t stError = 0x0001;  //!< An error occurred that could potentially be retried
   const uint16_t stFatal = 0x0003;  //!< Fatal error, it's still an error
 
   //----------------------------------------------------------------------------
   // Additional info for the stOK status
   //----------------------------------------------------------------------------
   const uint16_t suDone                  = 0;
   const uint16_t suContinue              = 1;
   const uint16_t suRetry                 = 2;
   const uint16_t suPartial               = 3;
   const uint16_t suAlreadyDone           = 4;
   const uint16_t suNotStarted            = 5;
 
   //----------------------------------------------------------------------------
   // Generic errors
   //----------------------------------------------------------------------------
   const uint16_t errNone                 = 0; //!< No error
   const uint16_t errRetry                = 1; //!< Try again for whatever reason
   const uint16_t errUnknown              = 2; //!< Unknown error
   const uint16_t errInvalidOp            = 3; //!< The operation cannot be performed in the
                                               //!< given circumstances
   const uint16_t errFcntl                = 4; //!< failed manipulate file descriptor
   const uint16_t errPoll                 = 5; //!< error while polling descriptors
   const uint16_t errConfig               = 6; //!< System misconfigured
   const uint16_t errInternal             = 7; //!< Internal error
   const uint16_t errUnknownCommand       = 8;
   const uint16_t errInvalidArgs          = 9;
   const uint16_t errInProgress           = 10;
   const uint16_t errUninitialized        = 11;
   const uint16_t errOSError              = 12;
   const uint16_t errNotSupported         = 13;
   const uint16_t errDataError            = 14; //!< data is corrupted
   const uint16_t errNotImplemented       = 15; //!< Operation is not implemented
   const uint16_t errNoMoreReplicas       = 16; //!< No more replicas to try
   const uint16_t errPipelineFailed       = 17; //!< Pipeline failed and operation couldn't be executed
 
   //----------------------------------------------------------------------------
   // Socket related errors
   //----------------------------------------------------------------------------
   const uint16_t errInvalidAddr          = 101;
   const uint16_t errSocketError          = 102;
   const uint16_t errSocketTimeout        = 103;
   const uint16_t errSocketDisconnected   = 104;
   const uint16_t errPollerError          = 105;
   const uint16_t errSocketOptError       = 106;
   const uint16_t errStreamDisconnect     = 107;
   const uint16_t errConnectionError      = 108;
   const uint16_t errInvalidSession       = 109;
   const uint16_t errTlsError             = 110;
 
   //----------------------------------------------------------------------------
   // Post Master related errors
   //----------------------------------------------------------------------------
   const uint16_t errInvalidMessage       = 201;
   const uint16_t errHandShakeFailed      = 202;
   const uint16_t errLoginFailed          = 203;
   const uint16_t errAuthFailed           = 204;
   const uint16_t errQueryNotSupported    = 205;
   const uint16_t errOperationExpired     = 206;
   const uint16_t errOperationInterrupted = 207;
   const uint16_t errThresholdExceeded    = 208;
 
   //----------------------------------------------------------------------------
   // XRootD related errors
   //----------------------------------------------------------------------------
   const uint16_t errNoMoreFreeSIDs       = 301;
   const uint16_t errInvalidRedirectURL   = 302;
   const uint16_t errInvalidResponse      = 303;
   const uint16_t errNotFound             = 304;
   const uint16_t errCheckSumError        = 305;
   const uint16_t errRedirectLimit        = 306;
   const uint16_t errCorruptedHeader      = 307;
 
   const uint16_t errErrorResponse        = 400;
   const uint16_t errRedirect             = 401;
   const uint16_t errLocalError           = 402;
 
   const uint16_t errResponseNegative     = 500; //!< Query response was negative
 
   //----------------------------------------------------------------------------
   //! Procedure execution status
   //----------------------------------------------------------------------------
   struct Status
   {
     //--------------------------------------------------------------------------
     //! Constructor
     //--------------------------------------------------------------------------
     Status( uint16_t st = stOK, uint16_t cod = errNone, uint32_t errN = 0 ):
       status(st), code(cod), errNo( errN ) {}
 
     bool IsError() const { return status & stError; }           //!< Error
     bool IsFatal() const { return (status&0x0002) & stFatal; }  //!< Fatal error
     bool IsOK()    const { return status == stOK; }             //!< We're fine
 
     //--------------------------------------------------------------------------
     //! Get the status code that may be returned to the shell
     //--------------------------------------------------------------------------
     int GetShellCode() const
     {
       if( IsOK() )
         return 0;
       return (code/100)+50;
     }
 
     inline static bool IsSocketError( uint16_t code )
     {
       return int( code / 100 ) == 1;
     }
 
     //--------------------------------------------------------------------------
     //! Create a string representation
     //--------------------------------------------------------------------------
     std::string ToString() const;
 
     uint16_t status;     //!< Status of the execution
     uint16_t code;       //!< Error type, or additional hints on what to do
     uint32_t errNo;      //!< Errno, if any
   };
 }
 
 #endif // __XRD_CL_STATUS_HH__

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