1 // Copyright (C) 2023 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include "Monitoring.hxx"
22 #include "baseutilities.h"
43 #include <sys/types.h>
47 static std::string _out_filename;
49 static pid_t pid_of_subprocess = 0;
53 static void LaunchMonitoringLinux(const std::string& pyScriptToEvaluate, const std::string& outFileName)
55 constexpr char PYTHON_EXEC[] = "python3";
59 throw std::runtime_error("LaunchMonitoring : Error at creation of sub process !");
63 execlp(PYTHON_EXEC,PYTHON_EXEC,pyScriptToEvaluate.c_str(),nullptr);
65 std::ostringstream oss; oss << "LaunchMonitoring : Error during exe : " << strerror_r(errno, buff, sizeof(buff));
66 throw std::runtime_error( oss.str() );
70 pid_of_subprocess = pid;
75 void SALOME::LaunchMonitoring(const std::string& pyScriptToEvaluate, const std::string& outFileName)
77 _out_filename = outFileName;
79 LaunchMonitoringLinux(pyScriptToEvaluate,outFileName);
81 throw std::runtime_error("LaunchMonitoring not implemented for Windows !");
85 std::vector<double> SALOME::ReadFloatsInFile(const std::string& fileName)
87 std::ifstream inputFile( fileName );
89 if(!inputFile.is_open())
91 std::ostringstream oss; oss << "Impossible to open file \"" << _out_filename<< "\" !";
92 throw std::runtime_error( oss.str() );
94 std::vector<double> ret;
98 while (std::getline(inputFile, line))
100 std::istringstream iss(line);
102 if( !(iss >> floatValue) )
103 throw std::invalid_argument("Conversion into FP failed !");
105 throw std::invalid_argument("Conversion into FP failed !");
106 ret.push_back(floatValue);
110 catch (const std::exception& e)
117 static std::vector<double> StopMonitoringLinux()
119 kill( pid_of_subprocess, SIGTERM );
120 std::vector<double> ret;
123 ret = SALOME::ReadFloatsInFile( _out_filename );
125 catch(std::exception& e) { }
126 pid_of_subprocess = 0;
127 _out_filename.clear();
132 std::vector<double> SALOME::StopMonitoring()
135 return StopMonitoringLinux();
137 throw std::runtime_error("StopMonitoring not implemented for Windows !");