dunedaq::oks::OksNameTable Struct Reference

The struct OksNameTable is used to generate unique strings. More...

#include <kernel.hpp>

Public Member Functions
	OksNameTable ()
OksString *	get ()
void	reset ()

Private Attributes
long	count

Static Private Attributes
static const char	symbols []

Detailed Description

The struct OksNameTable is used to generate unique strings.

The generated string contains ASCII characters (allowed characters defined by string 'symbols')

Each generated string is short as possible

Calls of get will give the following sequency: "0", "1", ..., "9", "a", "b", ..., "z", "A", ..., "?", "00", "01", ..., "09", "0a", "0b", ..., "0Z", "0A", ..., "0?", "10", "11", ..., "19", "1a", ... etc.

Definition at line 443 of file kernel.hpp.

Constructor & Destructor Documentation

OksNameTable()

dunedaq::oks::OksNameTable::OksNameTable ( )

inline

Definition at line 446 of file kernel.hpp.

{ reset(); }

Member Function Documentation

get()

OksString * dunedaq::oks::OksNameTable::get

(

)

Definition at line 570 of file kernel.cpp.

{
  static const size_t slen(sizeof(symbols) - 1);
  static const size_t slen2(slen * slen);
 
  char b[16], *buf = b;
 
  count++;
 
  *buf++ = symbols[count % slen];
 
  if ((size_t)count >= slen) {
    *buf++ = symbols[(count / slen) % slen];
 
    if ((size_t)count >= slen2) {
      *buf++ = symbols[(count / slen2) % slen];
    }
  }
 
  *buf = '\0';
 
  return new OksString(b);
}

reset()

void dunedaq::oks::OksNameTable::reset ( )

inline

Definition at line 449 of file kernel.hpp.

{ count = -1; }

Member Data Documentation

count

long dunedaq::oks::OksNameTable::count

private

Definition at line 453 of file kernel.hpp.

symbols

const char dunedaq::oks::OksNameTable::symbols

staticprivate

Initial value:

= "0123456789"
    "abcdefghijklmnoprstuvwxyz"
    "ABCDEFGHIJKLMNOPRSTUVWXYZ"

Definition at line 452 of file kernel.hpp.

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

• /github/workspace/dunedaq/sourcecode/oks/include/oks/kernel.hpp
• /github/workspace/dunedaq/sourcecode/oks/src/kernel.cpp