Teuchos - Trilinos Tools Package Version of the Day
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Teuchos_XMLParameterListHelpers.cpp
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4// Teuchos: Common Tools Package
5// Copyright (2004) Sandia Corporation
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7// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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41
42
46#include "Teuchos_CommHelpers.hpp"
47
48void Teuchos::updateParametersFromXmlFileAndBroadcast(
49 const std::string &xmlFileName,
50 const Ptr<ParameterList> &paramList,
51 const Comm<int> &comm,
52 bool overwrite
53 )
54{
55 if (comm.getSize()==1)
56 updateParametersFromXmlFile(xmlFileName, paramList);
57 else {
58 if (comm.getRank()==0) {
59 XMLParameterListReader xmlPLReader;
60 xmlPLReader.setAllowsDuplicateSublists( false );
61 FileInputSource xmlFile(xmlFileName);
62 XMLObject xmlParams = xmlFile.getObject();
63 std::string xmlString = toString(xmlParams);
64 int strsize = static_cast<int>(xmlString.size());
65 broadcast<int, int>(comm, 0, &strsize);
66 broadcast<int, char>(comm, 0, strsize, &xmlString[0]);
67 updateParametersFromXmlString(xmlString, paramList,overwrite);
68 }
69 else {
70 int strsize;
71 broadcast<int, int>(comm, 0, &strsize);
72 std::string xmlString;
73 xmlString.resize(strsize);
74 broadcast<int, char>(comm, 0, strsize, &xmlString[0]);
75 updateParametersFromXmlString(xmlString, paramList,overwrite);
76 }
77 }
78}
Definition of XMLInputSource derived class for reading XML from a file.
Additional ParameterList XML helper functions including parallel support.
Writes an XML object to a parameter list.