PStartupHandler.cpp File Reference

#include <sys/types.h>
#include <sys/stat.h>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <TObjArray.h>
#include <TObjString.h>
#include <TColor.h>
#include <TList.h>
#include <TXMLAttr.h>
#include "PStartupHandler.h"

Include dependency graph for PStartupHandler.cpp:

Go to the source code of this file.

Functions
	ClassImpQ (PStartupHandler) int parseXmlFile(TSAXParser *saxParser
	Replacement for TSAXParser::ParseFile() that uses buffer-based parsing.
xmlFile	open (startup_path_name, std::ios::in|std::ios::ate)
	if (xmlFile.is_open())
	if (!xmlBuffer)

Variables
const char *	startup_path_name
std::fstream	xmlFile
unsigned int	xmlSize = 0
char *	xmlBuffer = nullptr
	else
return	status

Function Documentation

ClassImpQ()

ClassImpQ

(

PStartupHandler

)

Replacement for TSAXParser::ParseFile() that uses buffer-based parsing.

This function provides a workaround for environments where the standard TSAXParser::ParseFile() method fails but ParseBuffer() works correctly. It reads the entire XML file into memory and then parses it as a buffer.

Algorithm:

1. Open XML file in binary mode, positioned at end to determine size
2. Allocate buffer for entire file content
3. Read file into buffer
4. Close file
5. Call saxParser->ParseBuffer() with buffer contents
6. Free buffer memory

Memory Management: The function allocates a buffer equal to the file size, which is freed after parsing completes. For very large XML files, this may consume significant memory temporarily.

Parameters

saxParser	Pointer to an initialized TSAXParser object. The parser should have its signal slots connected to a handler object (e.g., PStartupHandler) before calling this function.
startup_path_name	Full filesystem path to the XML file to be parsed.

Returns

Parse status code:

• 0: Success (file parsed without errors)
• 1: File could not be opened or read
• Other: XML parse error code from TSAXParser::ParseBuffer()

See also

PStartupHandler for the XML content handler implementation

if() [1/2]

if

(

!

xmlBuffer

)

Definition at line 98 of file PStartupHandler.cpp.

References if(), status, and xmlBuffer.

if() [2/2]

if

(

xmlFile.

is_open()

)

Examples

/workspace/LMU/musrfit/src/external/nexus/PNeXus.cpp.

Definition at line 91 of file PStartupHandler.cpp.

References xmlFile.

Referenced by if(), PMusrT0::PMusrT0(), PRunAsymmetry::PRunAsymmetry(), PRunAsymmetryBNMR::PRunAsymmetryBNMR(), PRunAsymmetryRRF::PRunAsymmetryRRF(), PRunBase::PRunBase(), PRunNonMusr::PRunNonMusr(), and PRunSingleHistoRRF::PRunSingleHistoRRF().

open()

xmlFile open	(	startup_path_name	,
		std::ios::in|std::ios::ate	)

References startup_path_name, and xmlFile.

Variable Documentation

else

else

Initial value:

{
    status = saxParser->ParseBuffer(xmlBuffer, xmlSize)

Definition at line 100 of file PStartupHandler.cpp.

startup_path_name

const char* startup_path_name

Initial value:

{
  int status

Definition at line 83 of file PStartupHandler.cpp.

Referenced by main(), main(), open(), PMsr2Data::ParseXmlStartupFile(), PStartupHandler::PStartupHandler(), and PStartupHandler::WriteDefaultStartupFile().

status

return status

Examples

/workspace/LMU/musrfit/src/external/nexus/PNeXus.cpp.

Definition at line 106 of file PStartupHandler.cpp.

Referenced by addRun_filter_t0(), addRun_readInputFiles(), ClassImp(), PFitter::DoFit(), PFourierCanvas::Done(), PMusrCanvas::Done(), PMusrT0::Done(), dump_header_psi_bin(), PMsrHandler::GetNoOfFitParameters(), PMsr2Data::GetSingleRunMsrFile(), PMsrHandler::HandleStatisticEntry(), if(), main(), main(), msr2msr_statistic(), PMsr2Data::ParseXmlStartupFile(), PFourierCanvas::PFourierCanvas(), nxH5::PNeXus::PNeXus(), nxH5::PNeXus::PNeXus(), PRunAsymmetry::PrepareData(), PRunAsymmetryBNMR::PrepareData(), PRunAsymmetryRRF::PrepareData(), PMsr2Data::PrepareGlobalInputFile(), PMsr2Data::PrepareNewSortedInputFile(), PTheory::PTheory(), PMsr2Data::ReadMsrFile(), PRunDataHandler::ReadPsiBinFile(), PRunDataHandler::ToDouble(), PRunDataHandler::ToInt(), MuSR_td_PSI_bin::Write(), and PRunDataHandler::WritePsiBinFile().

xmlBuffer

xmlBuffer = nullptr

Definition at line 88 of file PStartupHandler.cpp.

Referenced by if().

xmlFile

std::fstream xmlFile

Definition at line 86 of file PStartupHandler.cpp.

Referenced by if(), and open().

xmlSize

unsigned int xmlSize = 0

Definition at line 87 of file PStartupHandler.cpp.