MultiFileBlob Class Reference

#include <MultiFileBlob.h>

Public Types
typedef std::pair< unsigned char const *, unsigned char const * >	Range

Public Member Functions
void	finalized (bool compress)
unsigned long long	fullSize () const
bool	isCompressed () const
	MultiFileBlob ()
Range	rawBlob (const std::string &name) const
void	read (const std::string &name, std::istream &is)
	read from real file give it name name More...
unsigned long long	size (const std::string &name) const
void	write (const std::string &name, std::ostream &os) const
	write to ostream More...
	~MultiFileBlob ()

Private Types
typedef std::map< std::string, unsigned long long >	Positions

Private Member Functions
void	expand ()
template<class Archive >
void	serialize (Archive &ar, const unsigned int version)

Private Attributes
std::vector< unsigned char >	blob
bool	compressed
bool	expanded
unsigned long long	isize
Positions	positions

Friends
class	boost::serialization::access
template<typename CondSerializationT , typename Enabled >
struct	cond::serialization::access

Detailed Description

Definition at line 11 of file MultiFileBlob.h.

Member Typedef Documentation

Positions

typedef std::map<std::string, unsigned long long> MultiFileBlob::Positions

private

Definition at line 51 of file MultiFileBlob.h.

Range

typedef std::pair<unsigned char const*, unsigned char const*> MultiFileBlob::Range

Definition at line 13 of file MultiFileBlob.h.

Constructor & Destructor Documentation

MultiFileBlob()

MultiFileBlob::MultiFileBlob

(

)

Definition at line 7 of file MultiFileBlob.cc.

: compressed(false), isize(0), expanded(false) {}

~MultiFileBlob()

MultiFileBlob::~MultiFileBlob

(

)

Definition at line 9 of file MultiFileBlob.cc.

{}

Member Function Documentation

expand()

void MultiFileBlob::expand ( )

private

Definition at line 66 of file MultiFileBlob.cc.

                           {
  if (expanded)
    return;
  if (!compressed) {
    expanded = true;
    return;
  }
  std::vector<unsigned char> out(isize);
  uLongf destLen = out.size();
  int zerr = uncompress(&out.front(), &destLen, &blob.front(), blob.size());
  if (zerr != 0 || out.size() != destLen)
    edm::LogError("FileBlob") << "uncompressing error " << zerr << " original size was " << isize << " new size is "
                              << destLen;
  blob.swap(out);
  expanded = true;
}

References blob, compressed, expanded, isize, MillePedeFileConverter_cfg::out, and spu::zerr().

finalized()

void MultiFileBlob::finalized

(

bool

compress

)

Definition at line 11 of file MultiFileBlob.cc.

                                           {
  if (!compress)
    return;
  if (0 == isize)
    return;
  compressed = true;
  expanded = false;
  std::vector<unsigned char> out(isize);
  uLongf destLen = compressBound(isize);
  int zerr = compress2(&out.front(), &destLen, &blob.front(), isize, 9);
  if (zerr != 0)
    edm::LogError("MultiFileBlob") << "Compression error " << zerr;
  out.resize(destLen);
  blob.swap(out);
}

References blob, compressed, expanded, isize, MillePedeFileConverter_cfg::out, and spu::zerr().

fullSize()

unsigned long long MultiFileBlob::fullSize ( ) const

inline

Definition at line 39 of file MultiFileBlob.h.

{ return isize; }

References isize.

isCompressed()

bool MultiFileBlob::isCompressed ( ) const

inline

Definition at line 37 of file MultiFileBlob.h.

{ return compressed; }

References compressed.

rawBlob()

MultiFileBlob::Range MultiFileBlob::rawBlob

(

const std::string &

name

)

const

Definition at line 45 of file MultiFileBlob.cc.

                                                                     {
  const_cast<MultiFileBlob*>(this)->expand();
  Positions::const_iterator pos = positions.find(name);
  if (pos == positions.end()) {
    edm::LogError("MultiFileBlob:") << name << "not in this object";
    return Range(nullptr, nullptr);
  }
  unsigned long long b = (*pos).second;
  unsigned long long e = isize;
  pos++;
  if (pos != positions.end())
    e = (*pos).second;
 
  return Range(&blob[b], &blob[e]);
}

References b, blob, MillePedeFileConverter_cfg::e, isize, Skims_PA_cff::name, and positions.

Referenced by size(), and write().

read()

void MultiFileBlob::read	(	const std::string &	name,
		std::istream &	is
	)

read from real file give it name name

write name to real file read from istream

Definition at line 27 of file MultiFileBlob.cc.

                                                              {
  Positions::const_iterator pos = positions.find(name);
  if (pos != positions.end()) {
    edm::LogError("MultiFileBlob:") << name << "already in this object";
    return;
  }
  positions[name] = isize;
  char c;
  while (is.get(c))
    blob.push_back((unsigned char)c);
  isize = blob.size();
}

References blob, c, isize, Skims_PA_cff::name, and positions.

Referenced by edmIntegrityCheck.PublishToFileSystem::get().

serialize()

template<class Archive >

void MultiFileBlob::serialize ( Archive &  ar, const unsigned int  version  )

private

size()

unsigned long long MultiFileBlob::size

(

const std::string &

name

)

const

Definition at line 61 of file MultiFileBlob.cc.

                                                                  {
  Range r = rawBlob(name);
  return r.second - r.first;
}

References Skims_PA_cff::name, alignCSCRings::r, and rawBlob().

Referenced by ntupleDataFormat._Collection::__iter__(), and ntupleDataFormat._Collection::__len__().

write()

void MultiFileBlob::write	(	const std::string &	name,
		std::ostream &	os
	)		const

write to ostream

Definition at line 40 of file MultiFileBlob.cc.

                                                                     {
  Range r = rawBlob(name);
  os.write((const char*)(r.first), r.second - r.first);
}

References Skims_PA_cff::name, alignCSCRings::r, and rawBlob().

Referenced by pkg.AbstractPkg::generate().

Friends And Related Function Documentation

boost::serialization::access

friend class boost::serialization::access

friend

Definition at line 57 of file MultiFileBlob.h.

cond::serialization::access

template<typename CondSerializationT , typename Enabled >

friend struct cond::serialization::access

friend

Definition at line 57 of file MultiFileBlob.h.

Member Data Documentation

blob

std::vector<unsigned char> MultiFileBlob::blob

private

Definition at line 50 of file MultiFileBlob.h.

Referenced by expand(), finalized(), rawBlob(), and read().

compressed

bool MultiFileBlob::compressed

private

Definition at line 53 of file MultiFileBlob.h.

Referenced by expand(), finalized(), and isCompressed().

expanded

bool MultiFileBlob::expanded

private

Definition at line 55 of file MultiFileBlob.h.

Referenced by expand(), and finalized().

isize

unsigned long long MultiFileBlob::isize

private

Definition at line 54 of file MultiFileBlob.h.

Referenced by expand(), finalized(), fullSize(), rawBlob(), and read().

positions

Positions MultiFileBlob::positions

private

Definition at line 52 of file MultiFileBlob.h.

Referenced by rawBlob(), and read().