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This commit is contained in:
Gabriele Cosmo
2025-12-05 08:54:02 +01:00
parent a499fb82e9
commit b4a16de652
6484 changed files with 232674 additions and 221097 deletions
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source/externals/g4tools/include/tools/wroot/key
Vendored
+29 -47
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@@ -10,15 +10,40 @@
#include "wbuf"
#include "../sout"
#ifdef TOOLS_MEM
#include "../mem"
#endif
#include <ostream>
namespace tools {
namespace wroot {
//doc :
//////////////////////////////////////////////////////////////////////////
// //
// The Key class includes functions to book space on a file, //
// to create I/O buffers, to fill these buffers //
// to compress/uncompress data buffers. //
// //
// Before saving (making persistent) an object on a file, a key must //
// be created. The key structure contains all the information to //
// uniquely identify a persistent object on a file. //
// fNbytes = number of bytes for the compressed object+key //
// version of the Key class //
// fObjlen = Length of uncompressed object //
// fDatime = Date/Time when the object was written //
// fKeylen = number of bytes for the key structure //
// fCycle = cycle number of the object //
// fSeekKey = Address of the object on file (points to fNbytes) //
// This is a redundant information used to cross-check //
// the data base integrity. //
// fSeekPdir = Pointer to the directory supporting this object //
// fClassName = Object class name //
// fName = name of the object //
// fTitle = title of the object //
// //
// The Key class is used by ROOT to: //
// - to write an object in the Current Directory //
// - to write a new ntuple buffer //
// //
//////////////////////////////////////////////////////////////////////////
class key {
static uint32 class_version() {return 2;}
static const std::string& s_class() {
@@ -55,10 +80,6 @@ public:
,m_object_name(a_object_name)
,m_object_title(a_object_title)
{
#ifdef TOOLS_MEM
mem::increment(s_class().c_str());
#endif
if(a_seek_directory>START_BIG_FILE()) m_version += big_file_version_tag();
m_key_length = record_size(m_version);
@@ -91,10 +112,6 @@ public:
,m_object_name(a_object_name)
,m_object_title(a_object_title)
{
#ifdef TOOLS_MEM
mem::increment(s_class().c_str());
#endif
if(a_object_size) {
if(a_file.END()>START_BIG_FILE()) m_version += big_file_version_tag();
}
@@ -111,15 +128,9 @@ public:
}
virtual ~key(){
delete [] m_buffer;
#ifdef TOOLS_MEM
mem::decrement(s_class().c_str());
#endif
}
protected:
key(const key& a_from):m_out(a_from.m_out){
#ifdef TOOLS_MEM
mem::increment(s_class().c_str());
#endif
}
key& operator=(const key &){return *this;}
public:
@@ -298,32 +309,3 @@ protected:
#endif
//doc :
//////////////////////////////////////////////////////////////////////////
// //
// The Key class includes functions to book space on a file, //
// to create I/O buffers, to fill these buffers //
// to compress/uncompress data buffers. //
// //
// Before saving (making persistent) an object on a file, a key must //
// be created. The key structure contains all the information to //
// uniquely identify a persistent object on a file. //
// fNbytes = number of bytes for the compressed object+key //
// version of the Key class //
// fObjlen = Length of uncompressed object //
// fDatime = Date/Time when the object was written //
// fKeylen = number of bytes for the key structure //
// fCycle = cycle number of the object //
// fSeekKey = Address of the object on file (points to fNbytes) //
// This is a redundant information used to cross-check //
// the data base integrity. //
// fSeekPdir = Pointer to the directory supporting this object //
// fClassName = Object class name //
// fName = name of the object //
// fTitle = title of the object //
// //
// The Key class is used by ROOT to: //
// - to write an object in the Current Directory //
// - to write a new ntuple buffer //
// //
//////////////////////////////////////////////////////////////////////////