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1 /* |
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2 |
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3 Copyright (C) 2003 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_ls_hdf5_h) |
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24 #define octave_ls_hdf5_h 1 |
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25 |
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26 // first, we need to define our own dummy stream subclass, since |
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27 // HDF5 needs to do its own file i/o |
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28 |
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29 // hdf5_fstreambase is used for both input and output streams, modeled |
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30 // on the fstreambase class in <fstream.h> |
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31 |
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32 class hdf5_fstreambase : virtual public std::ios |
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33 { |
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34 public: |
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35 |
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36 // HDF5 uses an "id" to refer to an open file |
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37 hid_t file_id; |
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38 |
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39 // keep track of current item index in the file |
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40 int current_item; |
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41 |
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42 hdf5_fstreambase () { file_id = -1; } |
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43 |
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44 hdf5_fstreambase (const char *name, int mode, int /* prot */ = 0) |
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45 { |
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46 if (mode == std::ios::in) |
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47 file_id = H5Fopen (name, H5F_ACC_RDONLY, H5P_DEFAULT); |
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48 else if (mode == std::ios::out) |
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49 file_id = H5Fcreate (name, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); |
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50 |
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51 if (file_id < 0) |
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52 std::ios::setstate (std::ios::badbit); |
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53 |
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54 current_item = 0; |
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55 } |
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56 |
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57 void close () |
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58 { |
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59 if (file_id >= 0) |
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60 { |
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61 if (H5Fclose (file_id) < 0) |
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62 std::ios::setstate (std::ios::badbit); |
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63 file_id = -1; |
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64 } |
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65 } |
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66 |
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67 void open (const char *name, int mode, int prot = 0) |
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68 { |
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69 clear (); |
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70 |
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71 if (mode == std::ios::in) |
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72 file_id = H5Fopen (name, H5F_ACC_RDONLY, H5P_DEFAULT); |
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73 else if (mode == std::ios::out) |
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74 file_id = H5Fcreate (name, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); |
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75 |
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76 if (file_id < 0) |
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77 std::ios::setstate (std::ios::badbit); |
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78 |
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79 current_item = 0; |
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80 } |
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81 }; |
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82 |
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83 // input and output streams, subclassing istream and ostream |
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84 // so that we can pass them for stream parameters in the functions below. |
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85 |
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86 class hdf5_ifstream : public hdf5_fstreambase, public std::istream |
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87 { |
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88 public: |
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89 |
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90 hdf5_ifstream () : hdf5_fstreambase (), std::istream (0) { } |
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91 |
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92 hdf5_ifstream (const char *name, int mode = std::ios::in, int prot = 0) |
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93 : hdf5_fstreambase (name, mode, prot), std::istream (0) { } |
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94 |
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95 void open (const char *name, int mode = std::ios::in, int prot = 0) |
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96 { hdf5_fstreambase::open (name, mode, prot); } |
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97 }; |
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98 |
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99 class hdf5_ofstream : public hdf5_fstreambase, public std::ostream |
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100 { |
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101 public: |
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102 |
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103 hdf5_ofstream () : hdf5_fstreambase (), std::ostream (0) { } |
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104 |
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105 hdf5_ofstream (const char *name, int mode = std::ios::out, int prot = 0) |
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106 : hdf5_fstreambase (name, mode, prot), std::ostream (0) { } |
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107 |
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108 void open (const char *name, int mode = std::ios::out, int prot = 0) |
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109 { hdf5_fstreambase::open (name, mode, prot); } |
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110 }; |
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111 |
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112 extern std::string |
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113 read_hdf5_data (std::istream& is, |
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114 const std::string& filename, bool& global, |
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115 octave_value& tc, std::string& doc, bool import); |
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116 |
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117 extern bool |
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118 save_hdf5_data (std::ostream& os, const octave_value& tc, |
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119 const std::string& name, const std::string& doc, |
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120 bool mark_as_global, bool save_as_floats); |
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121 |
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122 #endif |
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123 |
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124 /* |
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125 ;;; Local Variables: *** |
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126 ;;; mode: C++ *** |
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127 ;;; End: *** |
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128 */ |
