src/cxx/Environment.cxx

   1 /*
   2  * Environment.cxx
   3  *
   4  * Copyright 2006,2007 Martin Quinson, Malek Cherier
   5  * All right reserved.
   6  *
   7  * This program is free software; you can redistribute
   8  * it and/or modify it under the terms of the license
   9  *(GNU LGPL) which comes with this package.
  10  *
  11  */
  12
  13  /* Environment member functions implementation.
  14   */
  15
  16 #include <Environment.hpp>
  17
  18 #include <stdlib.h>
  19
  20 #include <sys/types.h>
  21 #include <sys/stat.h>
  22
  23 #include <msg/msg.h>
  24
  25 #ifndef S_ISREG
  26         #define S_ISREG(__mode) (((__mode) & S_IFMT) == S_IFREG)
  27 #endif
  28
  29 namespace SimGrid
  30 {
  31         namespace Msg
  32         {
  33                 Environment::Environment()
  34                 {
  35                         this->file = NULL;
  36                         this->loaded = false;
  37                 }
  38
  39                 Environment::Environment(const Environment& rEnvironment)
  40                 {
  41                         this->file = rEnvironment.getFile();
  42                         this->loaded = rEnvironment.isLoaded();
  43                 }
  44
  45                 Environment::Environment(const char* file)
  46                 throw(NullPointerException, FileNotFoundException)
  47                 {
  48                         // check parameters
  49
  50                         if(!file)
  51                                 throw NullPointerException("file (must not be NULL");
  52
  53                         struct stat statBuf = {0};
  54
  55                         if(stat(file, &statBuf) < 0 || !S_ISREG(statBuf.st_mode))
  56                                 throw FileNotFoundException("file (file not found)");
  57
  58                         this->file = file;
  59                         this->loaded = false;
  60                 }
  61
  62                 Environment::~Environment()
  63                 {
  64                         // NOTHING TODO
  65                 }
  66
  67                 // Operations.
  68
  69                 void Environment::load(void)
  70                 throw(LogicException)
  71                 {
  72                         // check logic
  73
  74                         if(this->loaded)
  75                                 throw LogicException("environement already loaded");
  76
  77                         // check the parameters
  78                         if(!this->file)
  79                                 throw LogicException("you must specify the xml file which describe the environment to load\nuse Environment::setFile()");
  80
  81                         MSG_create_environment(file);
  82
  83                         this->loaded = true;
  84                 }
  85
  86                 void Environment::load(const char* file)
  87                 throw(NullPointerException, FileNotFoundException, LogicException)
  88                 {
  89                         // check logic
  90
  91                         if(this->loaded)
  92                                 throw LogicException("environment already loaded");
  93
  94                         // check the parameters
  95
  96                         if(!file)
  97                                 throw NullPointerException("file");
  98
  99                         struct stat statBuf = {0};
 100
 101                         if(stat(file, &statBuf) < 0 || !S_ISREG(statBuf.st_mode))
 102                                 throw FileNotFoundException(file);
 103
 104                         MSG_create_environment(file);
 105
 106                         this->file = file;
 107                         this->loaded = true;
 108                 }
 109
 110                 bool Environment::isLoaded(void) const
 111                 {
 112                         return this->loaded;
 113                 }
 114
 115                 // Getters/setters
 116                 void Environment::setFile(const char* file)
 117                 throw(NullPointerException, FileNotFoundException, LogicException)
 118                 {
 119                         // check logic
 120
 121                         if(this->loaded)
 122                                 throw LogicException("your are trying to change the file of an already loaded environment");
 123
 124                         // check parameters
 125
 126                         if(!file)
 127                                 throw NullPointerException("file (must not be NULL");
 128
 129                         struct stat statBuf = {0};
 130
 131                         if(stat(file, &statBuf) < 0 || !S_ISREG(statBuf.st_mode))
 132                                 throw FileNotFoundException("file (file not found)");
 133
 134                         this->file = file;
 135                 }
 136
 137                 const char* Environment::getFile(void) const
 138                 {
 139                         return this->file;
 140                 }
 141
 142
 143                 const Environment& Environment::operator = (const Environment& rEnvironment)
 144                 throw(LogicException)
 145                 {
 146                         // check logic
 147
 148                         if(this->loaded)
 149                                 throw LogicException("environment already loaded");
 150
 151                         this->file = rEnvironment.getFile();
 152                         this->loaded = rEnvironment.isLoaded();
 153
 154                         return *this;
 155                 }
 156
 157         } // namespace Msg
 158 } // namespace SimGrid
 159