c_src/file_nit.c

   1 /* This file is part of NIT ( http://www.nitlanguage.org ).
   2  *
   3  * Copyright 2004-2008 Jean Privat <jean@pryen.org>
   4  * Copyright 2008 Floréal Morandat <morandat@lirmm.fr>
   5  * Copyright 2008 Jean-Sébastien Gélinas <calestar@gmail.com>
   6  *
   7  * This file is free software, which comes along with NIT.  This software is
   8  * distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
   9  * without  even  the implied warranty of  MERCHANTABILITY or  FITNESS FOR A
  10  * PARTICULAR PURPOSE.  You can modify it is you want,  provided this header
  11  * is kept unaltered, and a notification of the changes is added.
  12  * You  are  allowed  to  redistribute it and sell it, alone or is a part of
  13  * another product.
  14  */
  15
  16 #include <stdlib.h>
  17 #include <stdio.h>
  18 #include <sys/stat.h>
  19 #include <unistd.h>
  20 #include <sys/types.h>
  21 #include <string.h>
  22 #include <dirent.h>
  23
  24 #include "file_nit.h"
  25
  26
  27 /*
  28 C implementation of file::String::files
  29
  30 Imported methods signatures:
  31         HashSet new_HashSet(  ) for hash_collection::HashSet::init
  32         void HashSet_add( HashSet recv, Object item ) for hash_collection::HashSet::(abstract_collection::SimpleCollection::add)
  33         String new_String_from_cstring( char * str ) for string::String::from_cstring
  34         int HashSet_is_a_Set( HashSet value ) to check if a HashSet[String] is a Set[String]
  35         Set HashSet_as_Set( HashSet value ) to cast from HashSet[String] to Set[String]
  36 */
  37 Set String_files___impl( String recv )
  38 {
  39         char *dir_path;
  40         DIR *dir;
  41
  42         dir_path = String_to_cstring( recv );
  43         if ((dir = opendir(dir_path)) == NULL)
  44         {
  45                 perror( dir_path );
  46                 exit( 1 );
  47         }
  48         else
  49         {
  50                 HashSet results;
  51                 String file_name;
  52                 struct dirent *de;
  53
  54                 results = new_HashSet();
  55
  56                 while ( ( de = readdir( dir ) ) != NULL )
  57                         if ( strcmp( de->d_name, ".." ) != 0 &&
  58                                 strcmp( de->d_name, "." ) != 0 )
  59                         {
  60                                 file_name = new_String_from_cstring( strdup( de->d_name ) );
  61                                 HashSet_add( results, String_as_Object( file_name ) );
  62                         }
  63
  64                 closedir( dir );
  65                 return HashSet_as_Set( results );
  66         }
  67 }
  68
  69 int string_NativeString_NativeString_file_exists_0(char *f){
  70         FILE *hdl = fopen(f,"r");
  71         if(hdl != NULL){
  72                 fclose(hdl);
  73         }
  74         return hdl != NULL;
  75 }
  76
  77 void *to_nit_file_stat(struct stat* st){
  78         struct stat* stat_element;
  79         stat_element = malloc(sizeof(struct stat));
  80         return memcpy(stat_element, st, sizeof(struct stat));
  81 }
  82
  83 void *string_NativeString_NativeString_file_stat_0(char *f){
  84         struct stat buff;
  85         if(stat(f, &buff) != -1)
  86                 return to_nit_file_stat(&buff);
  87         return 0;
  88 }
  89
  90 void *file_NativeFile_NativeFile_file_stat_0(FILE *f){
  91         struct stat buff;
  92         if(fstat(fileno(f), &buff) != -1)
  93                 return to_nit_file_stat(&buff);
  94         return 0;
  95 }
  96
  97 extern int string_NativeString_NativeString_file_delete_0(char *f){
  98   return (remove(f) == 0);
  99 }