XrdOucECMsg Class Reference

#include <XrdOucECMsg.hh>

Collaboration diagram for XrdOucECMsg:

Public Member Functions
	XrdOucECMsg (const char *msgid=0)
	~XrdOucECMsg ()
XrdOucECMsg &	Append (char dlm='\n')
int	Get ()
int	Get (std::string &ecm, bool rst=true)
bool	hasMsg () const
std::string	Msg ()
void	Msg (const char *pfx, const char *txt1, const char *txt2=0, const char *txt3=0, const char *txt4=0, const char *txt5=0)
void	Msgf (const char *pfx, const char *fmt,...)
void	MsgVA (const char *pfx, const char *fmt, std::va_list aP)
void	MsgVec (const char *pfx, char const *const *vecP, int vecN)
XrdOucECMsg &	operator= (const char *rhs)
XrdOucECMsg &	operator= (const int rhs)
	Assignment operators for convenience.
XrdOucECMsg &	operator= (const std::string &rhs)
XrdOucECMsg &	operator= (XrdOucECMsg &rhs)
void	Set (int ecc, const char *ecm="")
void	Set (int ecc, std::string &ecm)
int	SetErrno (int ecc, int ret=-1, const char *alt=0)

Detailed Description

Definition at line 38 of file XrdOucECMsg.hh.

Constructor & Destructor Documentation

XrdOucECMsg()

XrdOucECMsg::XrdOucECMsg ( const char * msgid = 0 )

inline

Definition at line 182 of file XrdOucECMsg.hh.

: msgID(msgid), eCode(0), Delim(0)  {}

Referenced by Append(), operator=(), operator=(), operator=(), and operator=().

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~XrdOucECMsg()

XrdOucECMsg::~XrdOucECMsg ( )

inline

Definition at line 183 of file XrdOucECMsg.hh.

{}

Member Function Documentation

Append()

XrdOucECMsg & XrdOucECMsg::Append ( char dlm = '\n' )

inline

Append subsequent message to contents of ecMsg using delimeter. Append allows method chaining for a more natural progamming style.

Parameters

dlm	!0 -> The character to use as message separator. dlm =0 -> Turns off appending, next message replaces ecMsg.

Returns

Reference to the subject object.

Definition at line 52 of file XrdOucECMsg.hh.

                   {ecMTX.Lock(); Delim = dlm; ecMTX.UnLock(); return *this;}

References XrdOucECMsg().

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Get() [1/2]

int XrdOucECMsg::Get ( )

inline

Definition at line 65 of file XrdOucECMsg.hh.

{return eCode;}

Get() [2/2]

int XrdOucECMsg::Get	(	std::string &	ecm,
		bool	rst = true )

Get err code and error message.

Parameters

ecm	Reference to std:string where message is to be placed.
rst	When true, the eCode and internal string are set to null.

Returns

the error code, eCode, and associated error message.

Definition at line 41 of file XrdOucECMsg.cc.

{
   XrdSysMutexHelper mScope(ecMTX);
 
   if (!rst)
      {ecm = ecMsg;
       return eCode;
      }
 
   int ec = eCode;
   eCode = 0;
   ecm = std::move(ecMsg);
   ecMsg.erase();
   return ec;
}

References ec.

Referenced by XrdPosixXrootd::QueryError(), and XrdPosixXrootd::QueryError().

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hasMsg()

bool XrdOucECMsg::hasMsg ( ) const

inline

Determine if an error text message exists.

Returns

true if an error text message exists, false otherwise.

Definition at line 73 of file XrdOucECMsg.hh.

                     {ecMTX.Lock(); bool hm = !ecMsg.empty();
                      ecMTX.UnLock(); return hm;
                     }

Msg() [1/2]

std::string XrdOucECMsg::Msg ( )

inline

Return the message string.

Returns

A reference to the message string.

Definition at line 83 of file XrdOucECMsg.hh.

                {ecMTX.Lock(); std::string m = ecMsg; ecMTX.UnLock();
                   return m;
                  }

Msg() [2/2]

void XrdOucECMsg::Msg	(	const char *	pfx,
		const char *	txt1,
		const char *	txt2 = 0,
		const char *	txt3 = 0,
		const char *	txt4 = 0,
		const char *	txt5 = 0 )

Insert a space delimited error message into ecMsg string.

Parameters

pfx	!0 -> the text to prefix the message; the message is formed as pfx: txt1 [txt2] [txt3] pfx =0 -> insert message into ecMsg without a prefix.
txt1,txt2,txt3,txt4,txt5	the message to be inserted to ecMsg.

Definition at line 61 of file XrdOucECMsg.cc.

{
 
   const char *vecP[10];
   int n = 0;
   bool xSpace = false;
 
   if (txt1 && *txt1) {vecP[n++] = txt1; xSpace = true;}
   if (txt2 && *txt2) {if (xSpace) vecP[n++] = " ";
                       vecP[n++] = txt2; xSpace = true;
                      }
   if (txt3 && *txt3) {if (xSpace) vecP[n++] = " ";
                       vecP[n++] = txt3; xSpace = true;
                      }
   if (txt4 && *txt4) {if (xSpace) vecP[n++] = " ";
                       vecP[n++] = txt4; xSpace = true;
                      }
   if (txt5 && *txt5) {if (xSpace) vecP[n++] = " ";
                       vecP[n++] = txt5;
                      }
 
// Route the message appropriately
//
   MsgVec(pfx, vecP, n);
}

References MsgVec().

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Msgf()

void XrdOucECMsg::Msgf	(	const char *	pfx,
		const char *	fmt,
			... )

Insert a formated error message into ecMsg using variable args.

Parameters

pfx	!0 -> the text to prefix the message; the message is formed as <pfx>: <formated_text> pfx =0 -> insert message without a prefix.
fmt	the message formatting template (i.e. sprintf format).
...	the arguments that should be used with the template. The formatted message is truncated at 2048 bytes.

Definition at line 93 of file XrdOucECMsg.cc.

{
   char buffer[2048];
   va_list  args;
   va_start (args, fmt);
 
// Format the message
//
   int n = vsnprintf(buffer, sizeof(buffer), fmt, args);
 
// Append as needed
//
   if (n > (int)sizeof(buffer)) n = sizeof(buffer);
   ecMTX.Lock();
   Setup(pfx, n);
   ecMsg.append(buffer);
   ecMTX.UnLock();
}

MsgVA()

void XrdOucECMsg::MsgVA	(	const char *	pfx,
		const char *	fmt,
		std::va_list	aP )

Insert a formated error message into the ecMsg using a va_list.

Parameters

pfx	!0 -> the text to prefix the message; the message is formed as <pfx>: <formated_text> pfx =0 -> add message to the log without a prefix.
fmt	the message formatting template (i.e. sprintf format).
aP	the arguments that should be used with the template. The formatted message is truncated at 2048 bytes.

Definition at line 116 of file XrdOucECMsg.cc.

{
   char buffer[2048];
 
// Format the message
//
   int n = vsnprintf(buffer, sizeof(buffer), fmt, aP);
 
// Append as needed
//
   if (n > (int)sizeof(buffer)) n = sizeof(buffer);
   ecMTX.Lock();
   Setup(pfx, n);
   ecMsg.append(buffer);
   ecMTX.UnLock();
}

MsgVec()

void XrdOucECMsg::MsgVec	(	const char *	pfx,
		char const *const *	vecP,
		int	vecN )

Insert a formated error message into ecMsg using an iovec.

Parameters

pfx	!0 -> the text to prefix the message; the message is formed as pfx: <iovec> pfx =0 -> insert message into ecMsg without a prefix.
vecP	pointer to a vector strings to insert into the message. Spaces are not inserted between the elements.
vecN	the number of elements in vecP.

Definition at line 137 of file XrdOucECMsg.cc.

{
   int n = 0;
 
   for (int i = 0; i < vecN; i++) n += strlen(vecP[i]);
   ecMTX.Lock();
   Setup(pfx, n);
   for (int i = 0; i < vecN; i++) ecMsg.append(vecP[i]);
   ecMTX.UnLock();
}

Referenced by Msg().

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operator=() [1/4]

XrdOucECMsg & XrdOucECMsg::operator= ( const char * rhs )

inline

Definition at line 174 of file XrdOucECMsg.hh.

           {ecMTX.Lock(); ecMsg = rhs; ecMTX.UnLock(); return *this;}

References XrdOucECMsg().

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operator=() [2/4]

XrdOucECMsg & XrdOucECMsg::operator= ( const int rhs )

inline

Assignment operators for convenience.

Definition at line 168 of file XrdOucECMsg.hh.

           {ecMTX.Lock(); eCode = rhs; ecMTX.UnLock(); return *this;}

References XrdOucECMsg().

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operator=() [3/4]

XrdOucECMsg & XrdOucECMsg::operator= ( const std::string & rhs )

inline

Definition at line 171 of file XrdOucECMsg.hh.

           {ecMTX.Lock(); ecMsg = rhs; ecMTX.UnLock(); return *this;}

References XrdOucECMsg().

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operator=() [4/4]

XrdOucECMsg & XrdOucECMsg::operator= ( XrdOucECMsg & rhs )

inline

Definition at line 177 of file XrdOucECMsg.hh.

           {ecMTX.Lock(); ecMsg = rhs.ecMsg; eCode = rhs.eCode; ecMTX.UnLock();
            return *this;
           }

References XrdOucECMsg().

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Set() [1/2]

void XrdOucECMsg::Set ( int ecc, const char * ecm = "" )

inline

Set error message and error code.

Parameters

ecc	The error code.
ecm	The error message, if nil then message is not changed.

Definition at line 146 of file XrdOucECMsg.hh.

         {ecMTX.Lock(); eCode = ecc; if (ecm) ecMsg = ecm; ecMTX.UnLock();}

Referenced by XrdPosixMap::Entry2Buf().

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Set() [2/2]

void XrdOucECMsg::Set ( int ecc, std::string & ecm )

inline

Definition at line 149 of file XrdOucECMsg.hh.

         {ecMTX.Lock(); eCode = ecc; ecMsg = ecm; ecMTX.UnLock();}

SetErrno()

int XrdOucECMsg::SetErrno	(	int	ecc,
		int	ret = -1,
		const char *	alt = 0 )

Set default error message, error code, and errno.

Parameters

ecc	The error code.
ret	The value to be returned, default -1.
alt	Alternative message, default text of ecc error.

Returns

The ret parameter value is returned.

Definition at line 152 of file XrdOucECMsg.cc.

{
   XrdSysMutexHelper mScope(ecMTX);
 
   if (!alt || *alt != '*')
      {if (!alt) alt = XrdSysE2T(ecc);
       Setup(msgID, strlen(alt));
       ecMsg.append(alt);
      }
   errno = eCode = ecc;
   return ret;
}

References XrdSysE2T().

Referenced by XrdPosixExtra::pgRead(), XrdPosixExtra::pgWrite(), XrdPosixXrootd::Pread(), and XrdPosixXrootd::Pwrite().

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The documentation for this class was generated from the following files:

• XrdOucECMsg.hh
• XrdOucECMsg.cc