XrdXrootdMonFMap Class Reference

#include <XrdXrootdMonFMap.hh>

Collaboration diagram for XrdXrootdMonFMap:

Classes
struct	cvPtr
union	cvPtr.__unnamed185__

Public Member Functions
	XrdXrootdMonFMap ()
	~XrdXrootdMonFMap ()
bool	Free (int slotNum)
int	Insert (XrdXrootdFileStats *fsP)
XrdXrootdFileStats *	Next (int &slotNum)

Public Attributes
cvPtr *	fMap
cvPtr	free

Static Public Attributes
static const int	fmHold = 31
static const int	fmMask = 0x01ff
static const int	fmShft = 9
static const int	fmSize = 512
static const int	mapNum = 128

Detailed Description

Definition at line 35 of file XrdXrootdMonFMap.hh.

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Class Documentation

XrdXrootdMonFMap::cvPtr

struct XrdXrootdMonFMap::cvPtr

Definition at line 39 of file XrdXrootdMonFMap.hh.

Collaboration diagram for XrdXrootdMonFMap::cvPtr:

Class Members
union cvPtr	__unnamed__

XrdXrootdMonFMap::cvPtr.__unnamed185__

union XrdXrootdMonFMap::cvPtr.__unnamed185__

Definition at line 39 of file XrdXrootdMonFMap.hh.

Collaboration diagram for XrdXrootdMonFMap::cvPtr.__unnamed185__:

Class Members
cvPtr *	cPtr
long	cVal
XrdXrootdFileStats *	vPtr

Constructor & Destructor Documentation

XrdXrootdMonFMap()

XrdXrootdMonFMap::XrdXrootdMonFMap ( )

inline

Definition at line 56 of file XrdXrootdMonFMap.hh.

: fMap(0) {free.cVal = 0;}

References free.

~XrdXrootdMonFMap()

XrdXrootdMonFMap::~XrdXrootdMonFMap ( )

inline

Definition at line 57 of file XrdXrootdMonFMap.hh.

{}

Member Function Documentation

Free()

bool XrdXrootdMonFMap::Free

(

int

slotNum

)

Definition at line 51 of file XrdXrootdMonFMap.cc.

{
// Validate the data before freeing the slot
//
   if (!fMap || slotNum < 0 || slotNum >= fmSize || fMap[slotNum].cVal & invVal)
      return false;
 
// Plase this entry on the free list
//
   fMap[slotNum].cPtr  = free.cPtr;
   fMap[slotNum].cVal |= invVal;
   free.cPtr           = &fMap[slotNum];
   return true;
}

References fMap, fmSize, and free.

Insert()

int XrdXrootdMonFMap::Insert

(

XrdXrootdFileStats *

fsP

)

Definition at line 98 of file XrdXrootdMonFMap.cc.

{
   cvPtr *mEnt;
 
// Check if we have a free slot available
//
   if (!free.cVal) {if (fMap || !Init()) return -1;}
 
// Return the free slot (Init() gaurantees one is available)
//
   mEnt       =  free.cPtr;
   free.cPtr  =  free.cPtr->cPtr;
   free.cVal &=  valVal;
   mEnt->vPtr =  fsP;
   return mEnt - fMap;
}

References fMap, and free.

Next()

XrdXrootdFileStats * XrdXrootdMonFMap::Next

(

int &

slotNum

)

Definition at line 119 of file XrdXrootdMonFMap.cc.

{
 
// Return next valid pointer
//
   for (; slotNum < fmSize-1; slotNum++)
        {if (!(fMap[slotNum].cVal & invVal)) return fMap[slotNum++].vPtr;}
 
// At the end of the map
//
   return 0;
}

References fMap, and fmSize.

Member Data Documentation

fMap

cvPtr* XrdXrootdMonFMap::fMap

Definition at line 41 of file XrdXrootdMonFMap.hh.

Referenced by Free(), Insert(), and Next().

fmHold

const int XrdXrootdMonFMap::fmHold = 31

static

Definition at line 46 of file XrdXrootdMonFMap.hh.

fmMask

const int XrdXrootdMonFMap::fmMask = 0x01ff

static

Definition at line 47 of file XrdXrootdMonFMap.hh.

Referenced by XrdXrootdMonFile::Close().

fmShft

const int XrdXrootdMonFMap::fmShft = 9

static

Definition at line 48 of file XrdXrootdMonFMap.hh.

Referenced by XrdXrootdMonFile::Close(), and XrdXrootdMonFile::Open().

fmSize

const int XrdXrootdMonFMap::fmSize = 512

static

Definition at line 45 of file XrdXrootdMonFMap.hh.

Referenced by Free(), Next(), and XrdXrootdMonFile::Open().

free

cvPtr XrdXrootdMonFMap::free

Definition at line 42 of file XrdXrootdMonFMap.hh.

Referenced by XrdXrootdMonFMap(), Free(), and Insert().

mapNum

const int XrdXrootdMonFMap::mapNum = 128

static

Definition at line 44 of file XrdXrootdMonFMap.hh.

Referenced by XrdXrootdMonFile::Open().

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

• XrdXrootdMonFMap.hh
• XrdXrootdMonFMap.cc