1 | #ifndef MARS_fits
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2 | #define MARS_fits
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3 |
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4 | #ifdef __CINT__
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5 | #define int8_t Char_t
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6 | #define int16_t Short_t
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7 | #define int32_t Int_t
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8 | #define int64_t Long64_t
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9 | #define uint8_t UChar_t
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10 | #define uint16_t UShort_t
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11 | #define uint32_t UInt_t
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12 | #define uint64_t ULong64_t
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13 | #else
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14 | #include <stdint.h>
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15 | #endif
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16 |
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17 | #include <map>
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18 | #include <string>
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19 | #include <fstream>
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20 | #include <sstream>
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21 | #include <algorithm>
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22 |
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23 | #ifdef __EXCEPTIONS
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24 | #include <stdexcept>
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25 | #endif
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26 |
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27 | #ifdef __CINT__
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28 | #define off_t size_t
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29 | #endif
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30 |
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31 | #if !defined(__MARS__) && !defined(__CINT__)
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32 | #include <unordered_map>
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33 | #endif
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34 |
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35 | #ifndef __MARS__
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36 | #include <vector>
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37 | #include <iomanip>
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38 | #include <iostream>
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39 | #define gLog cerr
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40 | #define ___err___ ""
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41 | #define ___warn___ ""
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42 | #define ___all___ ""
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43 | #else
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44 | #include "MLog.h"
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45 | #include "MLogManip.h"
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46 | #define ___err___ err
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47 | #define ___warn___ warn
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48 | #define ___all___ all
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49 | #endif
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50 |
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51 | #if defined(HAVE_ZLIB) || defined(__CINT__)
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52 | #include "izstream.h"
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53 | #else
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54 | #include <fstream>
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55 | #define izstream ifstream
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56 | #warning Support for zipped FITS files disabled.
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57 | #endif
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58 |
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59 | #include "checksum.h"
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60 |
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61 | #ifndef __MARS__
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62 | namespace std
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63 | {
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64 | #else
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65 | using namespace std;
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66 | #endif
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67 |
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68 | class fits : public izstream
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69 | {
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70 | public:
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71 | //I know I know, you're going to yiell that this does not belong here.
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72 | //It will belong in the global scope eventually, and it makes the coding of zfits much simpler this way.
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73 | typedef enum
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74 | {
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75 | UNCOMPRESSED,
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76 | SMOOTHMAN
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77 | } FitsCompression;
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78 |
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79 | struct Entry
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80 | {
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81 | char type;
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82 | string value;
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83 | string comment;
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84 | string fitsString;
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85 |
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86 | template<typename T>
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87 | T Get() const
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88 | {
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89 | T t;
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90 |
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91 | istringstream str(value);
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92 | str >> t;
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93 |
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94 | return t;
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95 | }
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96 | };
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97 |
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98 | struct Table
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99 | {
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100 | off_t offset;
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101 |
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102 | bool isCompressed;
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103 |
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104 | string name;
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105 | size_t bytes_per_row;
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106 | size_t num_rows;
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107 | size_t num_cols;
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108 | size_t total_bytes; // NAXIS1*NAXIS2
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109 |
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110 | struct Column
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111 | {
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112 | size_t offset;
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113 | size_t num;
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114 | size_t size;
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115 | size_t bytes; // num*size
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116 | char type;
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117 | string unit;
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118 | FitsCompression comp;
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119 | };
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120 |
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121 | typedef map<string, Entry> Keys;
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122 | typedef map<string, Column> Columns;
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123 | typedef vector<Column> SortedColumns;
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124 |
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125 | Columns cols;
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126 | SortedColumns sortedCols;
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127 | Keys keys;
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128 |
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129 | int64_t datasum;
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130 |
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131 | string Trim(const string &str, char c=' ') const
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132 | {
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133 | // Trim Both leading and trailing spaces
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134 | const size_t pstart = str.find_first_not_of(c); // Find the first character position after excluding leading blank spaces
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135 | const size_t pend = str.find_last_not_of(c); // Find the first character position from reverse af
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136 |
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137 | // if all spaces or empty return an empty string
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138 | if (string::npos==pstart || string::npos==pend)
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139 | return string();
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140 |
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141 | return str.substr(pstart, pend-pstart+1);
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142 | }
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143 |
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144 | bool Check(const string &key, char type, const string &value="") const
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145 | {
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146 | const Keys::const_iterator it = keys.find(key);
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147 | if (it==keys.end())
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148 | {
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149 | ostringstream str;
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150 | str << "Key '" << key << "' not found.";
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151 | #ifdef __EXCEPTIONS
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152 | throw runtime_error(str.str());
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153 | #else
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154 | gLog << ___err___ << "ERROR - " << str.str() << endl;
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155 | return false;
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156 | #endif
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157 | }
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158 |
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159 | if (it->second.type!=type)
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160 | {
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161 | ostringstream str;
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162 | str << "Wrong type for key '" << key << "': expected " << type << ", found " << it->second.type << ".";
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163 | #ifdef __EXCEPTIONS
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164 | throw runtime_error(str.str());
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165 | #else
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166 | gLog << ___err___ << "ERROR - " << str.str() << endl;
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167 | return false;
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168 | #endif
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169 | }
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170 |
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171 | if (!value.empty() && it->second.value!=value)
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172 | {
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173 | ostringstream str;
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174 | str << "Wrong value for key '" << key << "': expected " << value << ", found " << it->second.value << ".";
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175 | #ifdef __EXCEPTIONS
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176 | throw runtime_error(str.str());
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177 | #else
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178 | gLog << ___err___ << "ERROR - " << str.str() << endl;
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179 | return false;
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180 | #endif
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181 | }
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182 |
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183 | return true;
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184 | }
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185 |
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186 | Keys ParseBlock(const vector<string> &vec) const
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187 | {
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188 | map<string,Entry> rc;
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189 |
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190 | for (unsigned int i=0; i<vec.size(); i++)
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191 | {
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192 | const string key = Trim(vec[i].substr(0,8));
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193 | // Keywords without a value, like COMMENT / HISTORY
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194 | if (vec[i].substr(8,2)!="= ")
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195 | continue;
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196 |
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197 | char type = 0;
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198 |
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199 | string com;
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200 | string val = Trim(vec[i].substr(10));
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201 | if (val[0]=='\'')
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202 | {
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203 | // First skip all '' in the string
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204 | size_t p = 1;
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205 | while (1)
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206 | {
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207 | const size_t pp = val.find_first_of('\'', p);
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208 | if (pp==string::npos)
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209 | break;
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210 |
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211 | p = val[pp+1]=='\'' ? pp+2 : pp+1;
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212 | }
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213 |
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214 | // Now find the comment
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215 | const size_t ppp = val.find_first_of('/', p);
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216 |
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217 | // Set value, comment and type
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218 | if (ppp==string::npos)
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219 | com = "";
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220 | else
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221 | {// comments could be just spaces. take care of this.
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222 | if (val.size() == ppp+1)
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223 | com = "";
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224 | else
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225 | com = Trim(val.substr(ppp+1));
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226 | }
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227 | // com = ppp==string::npos ? "" : Trim(val.substr(ppp+1));
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228 | val = Trim(val.substr(1, p-2));
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229 | type = 'T';
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230 | }
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231 | else
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232 | {
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233 | const size_t p = val.find_first_of('/');
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234 |
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235 | if (val.size() == p+1)
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236 | com = "";
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237 | else
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238 | com = Trim(val.substr(p+2));
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239 | val = Trim(val.substr(0, p));
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240 |
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241 | if (val.empty() || val.find_first_of('T')!=string::npos || val.find_first_of('F')!=string::npos)
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242 | type = 'B';
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243 | else
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244 | type = val.find_last_of('.')==string::npos ? 'I' : 'F';
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245 | }
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246 |
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247 | const Entry e = { type, val, com, vec[i] };
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248 | rc[key] = e;
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249 | }
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250 |
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251 | return rc;
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252 | }
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253 |
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254 | Table() : offset(0) { }
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255 | Table(const vector<string> &vec, off_t off) :
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256 | offset(off), isCompressed(false), keys(ParseBlock(vec))
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257 | {
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258 | if (HasKey("ZTABLE") && Check("ZTABLE", 'B', "T"))
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259 | isCompressed = true;
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260 |
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261 | if (!Check("XTENSION", 'T', "BINTABLE") ||
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262 | !Check("NAXIS", 'I', "2") ||
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263 | !Check("BITPIX", 'I', "8") ||
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264 | !Check("GCOUNT", 'I', "1") ||
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265 | !Check("EXTNAME", 'T') ||
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266 | !Check("NAXIS1", 'I') ||
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267 | !Check("NAXIS2", 'I') ||
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268 | !Check("TFIELDS", 'I'))
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269 | return;
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270 |
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271 | if (isCompressed)
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272 | {
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273 | if (!Check("ZNAXIS1", 'I') ||
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274 | !Check("ZNAXIS2", 'I') ||
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275 | !Check("ZPCOUNT", 'I', "0"))
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276 | return;
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277 | }
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278 | else
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279 | {
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280 | if (!Check("PCOUNT", 'I', "0"))
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281 | return;
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282 | }
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283 |
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284 | total_bytes = Get<size_t>("NAXIS1")*Get<size_t>("NAXIS2");
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285 | bytes_per_row = isCompressed ? Get<size_t>("ZNAXIS1") : Get<size_t>("NAXIS1");
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286 | num_rows = isCompressed ? Get<size_t>("ZNAXIS2") : Get<size_t>("NAXIS2");
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287 | num_cols = Get<size_t>("TFIELDS");
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288 | datasum = isCompressed ? Get<int64_t>("ZDATASUM", -1) : Get<int64_t>("DATASUM", -1);
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289 |
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290 | size_t bytes = 0;
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291 | string tFormName = isCompressed ? "ZFORM" : "TFORM";
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292 | for (size_t i=1; i<=num_cols; i++)
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293 | {
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294 | ostringstream num;
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295 | num << i;
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296 |
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297 | if (!Check("TTYPE"+num.str(), 'T') ||
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298 | !Check(tFormName+num.str(), 'T'))
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299 | return;
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300 |
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301 | const string id = Get<string>("TTYPE"+num.str());
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302 | const string fmt = Get<string>(tFormName+num.str());
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303 | const string unit = Get<string>("TUNIT"+num.str(), "");
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304 | const string comp = Get<string>("ZCTYP"+num.str(), "");
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305 |
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306 | FitsCompression compress = UNCOMPRESSED;
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307 | if (comp == "SMOO")
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308 | compress = SMOOTHMAN;
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309 |
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310 | istringstream sin(fmt);
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311 | int n = 0;
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312 | sin >> n;
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313 | if (!sin)
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314 | n = 1;
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315 |
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316 | const char type = fmt[fmt.length()-1];
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317 |
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318 | size_t size = 0;
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319 | switch (type)
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320 | {
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321 | // We could use negative values to mark floats
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322 | // otheriwse we could just cast them to int64_t?
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323 | case 'L': // logical
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324 | case 'A': // char
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325 | case 'B': size = 1; break; // byte
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326 | case 'I': size = 2; break; // short
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327 | case 'J': size = 4; break; // int
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328 | case 'K': size = 8; break; // long long
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329 | case 'E': size = 4; break; // float
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330 | case 'D': size = 8; break; // double
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331 | // case 'X': size = n; break; // bits (n=number of bytes needed to contain all bits)
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332 | // case 'C': size = 8; break; // complex float
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333 | // case 'M': size = 16; break; // complex double
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334 | // case 'P': size = 8; break; // array descriptor (32bit)
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335 | // case 'Q': size = 16; break; // array descriptor (64bit)
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336 | default:
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337 | {
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338 | ostringstream str;
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339 | str << "FITS format TFORM='" << fmt << "' not yet supported.";
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340 | #ifdef __EXCEPTIONS
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341 | throw runtime_error(str.str());
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342 | #else
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343 | gLog << ___err___ << "ERROR - " << str.str() << endl;
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344 | return;
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345 | #endif
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346 | }
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347 | }
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348 |
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349 | const Table::Column col = { bytes, n, size, n*size, type, unit, compress};
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350 |
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351 | cols[id] = col;
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352 | sortedCols.push_back(col);
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353 | bytes += n*size;
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354 | }
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355 |
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356 | if (bytes!=bytes_per_row)
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357 | {
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358 | #ifdef __EXCEPTIONS
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359 | throw runtime_error("Column size mismatch");
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360 | #else
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361 | gLog << ___err___ << "ERROR - Column size mismatch" << endl;
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362 | return;
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363 | #endif
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364 | }
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365 |
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366 | name = Get<string>("EXTNAME");
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367 | }
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368 |
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369 | void PrintKeys(bool display_all=false) const
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370 | {
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371 | for (Keys::const_iterator it=keys.begin(); it!=keys.end(); it++)
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372 | {
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373 | if (!display_all &&
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374 | (it->first.substr(0, 6)=="TTYPE" ||
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375 | it->first.substr(0, 6)=="TFORM" ||
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376 | it->first.substr(0, 6)=="TUNIT" ||
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377 | it->first=="TFIELDS" ||
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378 | it->first=="XTENSION" ||
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379 | it->first=="NAXIS" ||
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380 | it->first=="BITPIX" ||
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381 | it->first=="PCOUNT" ||
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382 | it->first=="GCOUNT")
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383 | )
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384 | continue;
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385 |
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386 | gLog << ___all___ << setw(2) << it->second.type << '|' << it->first << '=' << it->second.value << '/' << it->second.comment << '|' << endl;
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387 | }}
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388 |
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389 | void PrintColumns() const
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390 | {
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391 | typedef map<pair<size_t, string>, Column> Sorted;
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392 |
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393 | Sorted sorted;
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394 |
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395 | for (Columns::const_iterator it=cols.begin(); it!=cols.end(); it++)
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396 | sorted[make_pair(it->second.offset, it->first)] = it->second;
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397 |
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398 | for (Sorted::const_iterator it=sorted.begin(); it!=sorted.end(); it++)
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399 | {
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400 | gLog << ___all___ << setw(6) << it->second.offset << "| ";
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401 | gLog << it->second.num << 'x';
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402 | switch (it->second.type)
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403 | {
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404 | case 'A': gLog << "char(8)"; break;
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405 | case 'L': gLog << "bool(8)"; break;
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406 | case 'B': gLog << "byte(8)"; break;
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407 | case 'I': gLog << "short(16)"; break;
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408 | case 'J': gLog << "int(32)"; break;
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409 | case 'K': gLog << "int(64)"; break;
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410 | case 'E': gLog << "float(32)"; break;
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411 | case 'D': gLog << "double(64)"; break;
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412 | }
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413 | gLog << ": " << it->first.second << " [" << it->second.unit << "]" << endl;
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414 | }
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415 | }
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416 |
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417 | operator bool() const { return !name.empty(); }
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418 |
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419 | bool HasKey(const string &key) const
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420 | {
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421 | return keys.find(key)!=keys.end();
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422 | }
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423 |
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424 | bool HasColumn(const string& col) const
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425 | {
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426 | return cols.find(col)!=cols.end();
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427 | }
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428 |
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429 | const Columns &GetColumns() const
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430 | {
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431 | return cols;
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432 | }
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433 |
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434 | const Keys &GetKeys() const
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435 | {
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436 | return keys;
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437 | }
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438 |
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439 | // Values of keys are always signed
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440 | template<typename T>
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441 | T Get(const string &key) const
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442 | {
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443 | const map<string,Entry>::const_iterator it = keys.find(key);
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444 | if (it==keys.end())
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445 | {
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446 | ostringstream str;
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447 | str << "Key '" << key << "' not found." << endl;
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448 | #ifdef __EXCEPTIONS
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449 | throw runtime_error(str.str());
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450 | #else
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451 | gLog << ___err___ << "ERROR - " << str.str() << endl;
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452 | return T();
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453 | #endif
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454 | }
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455 | return it->second.Get<T>();
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456 | }
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457 |
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458 | // Values of keys are always signed
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459 | template<typename T>
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460 | T Get(const string &key, const T &deflt) const
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461 | {
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462 | const map<string,Entry>::const_iterator it = keys.find(key);
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463 | return it==keys.end() ? deflt :it->second.Get<T>();
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464 | }
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465 |
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466 | size_t GetN(const string &key) const
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467 | {
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468 | const Columns::const_iterator it = cols.find(key);
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469 | return it==cols.end() ? 0 : it->second.num;
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470 | }
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471 |
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472 | // There may be a gap between the main table and the start of the heap:
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473 | // this computes the offset
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474 | streamoff GetHeapShift() const
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475 | {
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476 | if (!HasKey("THEAP"))
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477 | return 0;
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478 |
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479 | const size_t shift = Get<size_t>("THEAP");
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480 | return shift <= total_bytes ? 0 : shift - total_bytes;
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---|
481 | }
|
---|
482 |
|
---|
483 | // return total number of bytes 'all inclusive'
|
---|
484 | streamoff GetTotalBytes() const
|
---|
485 | {
|
---|
486 | //get offset of special data area from start of main table
|
---|
487 | const streamoff shift = GetHeapShift();
|
---|
488 |
|
---|
489 | //and special data area size
|
---|
490 | const streamoff size = HasKey("PCOUNT") ? Get<streamoff>("PCOUNT") : 0;
|
---|
491 |
|
---|
492 | // Get the total size
|
---|
493 | const streamoff total = total_bytes + size + shift;
|
---|
494 |
|
---|
495 | // check for padding
|
---|
496 | if (total%2880==0)
|
---|
497 | return total;
|
---|
498 |
|
---|
499 | // padding necessary
|
---|
500 | return total + (2880 - (total%2880));
|
---|
501 | }
|
---|
502 | };
|
---|
503 |
|
---|
504 | protected:
|
---|
505 | ofstream fCopy;
|
---|
506 |
|
---|
507 | Table fTable;
|
---|
508 |
|
---|
509 | typedef pair<void*, Table::Column> Address;
|
---|
510 | typedef vector<Address> Addresses;
|
---|
511 | //map<void*, Table::Column> fAddresses;
|
---|
512 | Addresses fAddresses;
|
---|
513 |
|
---|
514 | #if defined(__MARS__) || defined(__CINT__)
|
---|
515 | typedef map<string, void*> Pointers;
|
---|
516 | #else
|
---|
517 | typedef unordered_map<string, void*> Pointers;
|
---|
518 | #endif
|
---|
519 | Pointers fPointers;
|
---|
520 |
|
---|
521 | vector<vector<char>> fGarbage;
|
---|
522 |
|
---|
523 | vector<char> fBufferRow;
|
---|
524 | vector<char> fBufferDat;
|
---|
525 |
|
---|
526 | size_t fRow;
|
---|
527 |
|
---|
528 | Checksum fChkHeader;
|
---|
529 | Checksum fChkData;
|
---|
530 |
|
---|
531 | bool ReadBlock(vector<string> &vec)
|
---|
532 | {
|
---|
533 | int endtag = 0;
|
---|
534 | for (int i=0; i<36; i++)
|
---|
535 | {
|
---|
536 | char c[81];
|
---|
537 | c[80] = 0;
|
---|
538 | read(c, 80);
|
---|
539 | if (!good())
|
---|
540 | break;
|
---|
541 |
|
---|
542 | fChkHeader.add(c, 80);
|
---|
543 |
|
---|
544 | // if (c[0]==0)
|
---|
545 | // return vector<string>();
|
---|
546 |
|
---|
547 | string str(c);
|
---|
548 |
|
---|
549 | // if (!str.empty())
|
---|
550 | // cout << setw(2) << i << "|" << str << "|" << (endtag?'-':'+') << endl;
|
---|
551 |
|
---|
552 | if (endtag==2 || str=="END ")
|
---|
553 | {
|
---|
554 | endtag = 2; // valid END tag found
|
---|
555 | continue;
|
---|
556 | }
|
---|
557 |
|
---|
558 | if (endtag==1 || str==" ")
|
---|
559 | {
|
---|
560 | endtag = 1; // end tag not found, but expected to be there
|
---|
561 | continue;
|
---|
562 | }
|
---|
563 |
|
---|
564 | vec.push_back(str);
|
---|
565 | }
|
---|
566 |
|
---|
567 | // Make sure that no empty vector is returned
|
---|
568 | if (endtag && vec.size()%36==0)
|
---|
569 | vec.emplace_back("END = '' / ");
|
---|
570 |
|
---|
571 | return endtag==2;
|
---|
572 | }
|
---|
573 |
|
---|
574 | string Compile(const string &key, int16_t i=-1) const
|
---|
575 | {
|
---|
576 | if (i<0)
|
---|
577 | return key;
|
---|
578 |
|
---|
579 | ostringstream str;
|
---|
580 | str << key << i;
|
---|
581 | return str.str();
|
---|
582 | }
|
---|
583 |
|
---|
584 | void Constructor(const string &fname, string fout, const string& tableName, bool force)
|
---|
585 | {
|
---|
586 | char simple[10];
|
---|
587 | read(simple, 10);
|
---|
588 | if (!good())
|
---|
589 | return;
|
---|
590 |
|
---|
591 | if (memcmp(simple, "SIMPLE = ", 10))
|
---|
592 | {
|
---|
593 | clear(rdstate()|ios::badbit);
|
---|
594 | #ifdef __EXCEPTIONS
|
---|
595 | throw runtime_error("File is not a FITS file.");
|
---|
596 | #else
|
---|
597 | gLog << ___err___ << "ERROR - File is not a FITS file." << endl;
|
---|
598 | return;
|
---|
599 | #endif
|
---|
600 | }
|
---|
601 |
|
---|
602 | seekg(0);
|
---|
603 |
|
---|
604 | while (good())
|
---|
605 | {
|
---|
606 | vector<string> block;
|
---|
607 | while (1)
|
---|
608 | {
|
---|
609 | // If we search for a table, we implicitly assume that
|
---|
610 | // not finding the table is not an error. The user
|
---|
611 | // can easily check that by eof() && !bad()
|
---|
612 | peek();
|
---|
613 | if (eof() && !bad() && !tableName.empty())
|
---|
614 | {
|
---|
615 | cout << "END OF FILE !" << endl;
|
---|
616 | break;
|
---|
617 | }
|
---|
618 | // FIXME: Set limit on memory consumption
|
---|
619 | const int rc = ReadBlock(block);
|
---|
620 | if (!good())
|
---|
621 | {
|
---|
622 | clear(rdstate()|ios::badbit);
|
---|
623 | #ifdef __EXCEPTIONS
|
---|
624 | throw runtime_error("FITS file corrupted.");
|
---|
625 | #else
|
---|
626 | gLog << ___err___ << "ERROR - FITS file corrupted." << endl;
|
---|
627 | return;
|
---|
628 | #endif
|
---|
629 | }
|
---|
630 |
|
---|
631 | if (block.size()%36)
|
---|
632 | {
|
---|
633 | if (!rc && !force)
|
---|
634 | {
|
---|
635 | clear(rdstate()|ios::badbit);
|
---|
636 | #ifdef __EXCEPTIONS
|
---|
637 | throw runtime_error("END keyword missing in FITS header.");
|
---|
638 | #else
|
---|
639 | gLog << ___err___ << "ERROR - END keyword missing in FITS file... file might be corrupted." << endl;
|
---|
640 | return;
|
---|
641 | #endif
|
---|
642 | }
|
---|
643 | break;
|
---|
644 | }
|
---|
645 | }
|
---|
646 |
|
---|
647 | if (block.empty())
|
---|
648 | break;
|
---|
649 |
|
---|
650 | if (block[0].substr(0, 9)=="SIMPLE =")
|
---|
651 | {
|
---|
652 | fChkHeader.reset();
|
---|
653 | continue;
|
---|
654 | }
|
---|
655 |
|
---|
656 | if (block[0].substr(0, 9)=="XTENSION=")
|
---|
657 | {
|
---|
658 | fTable = Table(block, tellg());
|
---|
659 | fRow = (size_t)-1;
|
---|
660 |
|
---|
661 | if (!fTable)
|
---|
662 | {
|
---|
663 | clear(rdstate()|ios::badbit);
|
---|
664 | return;
|
---|
665 | }
|
---|
666 |
|
---|
667 | //Check for table name. Skip until eof or requested table are found.
|
---|
668 | // skip the current table?
|
---|
669 | if (!tableName.empty() && tableName!=fTable.Get<string>("EXTNAME"))
|
---|
670 | {
|
---|
671 | const streamoff skip = fTable.GetTotalBytes();
|
---|
672 | seekg(skip, ios_base::cur);
|
---|
673 |
|
---|
674 | fChkHeader.reset();
|
---|
675 |
|
---|
676 | continue;
|
---|
677 | }
|
---|
678 |
|
---|
679 | //fTable.PrintKeys();
|
---|
680 |
|
---|
681 | fBufferRow.resize(fTable.bytes_per_row + 8-fTable.bytes_per_row%4);
|
---|
682 | fBufferDat.resize(fTable.bytes_per_row);
|
---|
683 |
|
---|
684 | break;
|
---|
685 | }
|
---|
686 | }
|
---|
687 |
|
---|
688 | if (fout.empty())
|
---|
689 | return;
|
---|
690 |
|
---|
691 | if (*fout.rbegin()=='/')
|
---|
692 | {
|
---|
693 | const size_t p = fname.find_last_of('/');
|
---|
694 | fout.append(fname.substr(p+1));
|
---|
695 | }
|
---|
696 |
|
---|
697 | fCopy.open(fout);
|
---|
698 | if (!fCopy)
|
---|
699 | {
|
---|
700 | clear(rdstate()|ios::badbit);
|
---|
701 | #ifdef __EXCEPTIONS
|
---|
702 | throw runtime_error("Could not open output file.");
|
---|
703 | #else
|
---|
704 | gLog << ___err___ << "ERROR - Failed to open output file." << endl;
|
---|
705 | #endif
|
---|
706 | }
|
---|
707 |
|
---|
708 | const streampos p = tellg();
|
---|
709 | seekg(0);
|
---|
710 |
|
---|
711 | vector<char> buf(p);
|
---|
712 | read(buf.data(), p);
|
---|
713 |
|
---|
714 | fCopy.write(buf.data(), p);
|
---|
715 | if (!fCopy)
|
---|
716 | clear(rdstate()|ios::badbit);
|
---|
717 | }
|
---|
718 |
|
---|
719 | public:
|
---|
720 | fits(const string &fname, const string& tableName="", bool force=false) : izstream(fname.c_str())
|
---|
721 | {
|
---|
722 | Constructor(fname, "", tableName, force);
|
---|
723 | }
|
---|
724 |
|
---|
725 | fits(const string &fname, const string &fout, const string& tableName, bool force=false) : izstream(fname.c_str())
|
---|
726 | {
|
---|
727 | Constructor(fname, fout, tableName, force);
|
---|
728 | }
|
---|
729 |
|
---|
730 | ~fits()
|
---|
731 | {
|
---|
732 | copy(istreambuf_iterator<char>(*this),
|
---|
733 | istreambuf_iterator<char>(),
|
---|
734 | ostreambuf_iterator<char>(fCopy));
|
---|
735 | }
|
---|
736 |
|
---|
737 | virtual void StageRow(size_t row, char* dest)
|
---|
738 | {
|
---|
739 | // if (row!=fRow+1) // Fast seeking is ensured by izstream
|
---|
740 | seekg(fTable.offset+row*fTable.bytes_per_row);
|
---|
741 | read(dest, fTable.bytes_per_row);
|
---|
742 | //fin.clear(fin.rdstate()&~ios::eofbit);
|
---|
743 | }
|
---|
744 |
|
---|
745 | virtual void WriteRowToCopyFile(size_t row)
|
---|
746 | {
|
---|
747 | if (row==fRow+1 && !fTable.isCompressed)
|
---|
748 | {
|
---|
749 | const uint8_t offset = (row*fTable.bytes_per_row)%4;
|
---|
750 |
|
---|
751 | fChkData.add(fBufferRow);
|
---|
752 | if (fCopy.is_open() && fCopy.good())
|
---|
753 | fCopy.write(fBufferRow.data()+offset, fTable.bytes_per_row);
|
---|
754 | if (!fCopy)
|
---|
755 | clear(rdstate()|ios::badbit);
|
---|
756 | }
|
---|
757 | else
|
---|
758 | if (fCopy.is_open())
|
---|
759 | clear(rdstate()|ios::badbit);
|
---|
760 | }
|
---|
761 | uint8_t ReadRow(size_t row)
|
---|
762 | {
|
---|
763 | // For the checksum we need everything to be correctly aligned
|
---|
764 | const uint8_t offset = (row*fTable.bytes_per_row)%4;
|
---|
765 |
|
---|
766 | auto ib = fBufferRow.begin();
|
---|
767 | auto ie = fBufferRow.end();
|
---|
768 | *ib++ = 0;
|
---|
769 | *ib++ = 0;
|
---|
770 | *ib++ = 0;
|
---|
771 | *ib = 0;
|
---|
772 |
|
---|
773 | *--ie = 0;
|
---|
774 | *--ie = 0;
|
---|
775 | *--ie = 0;
|
---|
776 | *--ie = 0;
|
---|
777 | *--ie = 0;
|
---|
778 | *--ie = 0;
|
---|
779 | *--ie = 0;
|
---|
780 | *--ie = 0;
|
---|
781 |
|
---|
782 | StageRow(row, fBufferRow.data()+offset);
|
---|
783 |
|
---|
784 | WriteRowToCopyFile(row);
|
---|
785 |
|
---|
786 | fRow = row;
|
---|
787 |
|
---|
788 | return offset;
|
---|
789 | }
|
---|
790 |
|
---|
791 | template<size_t N>
|
---|
792 | void revcpy(char *dest, const char *src, const int &num)
|
---|
793 | {
|
---|
794 | const char *pend = src + num*N;
|
---|
795 | for (const char *ptr = src; ptr<pend; ptr+=N, dest+=N)
|
---|
796 | reverse_copy(ptr, ptr+N, dest);
|
---|
797 | }
|
---|
798 |
|
---|
799 | virtual void MoveColumnDataToUserSpace(char *dest, const char *src, const Table::Column& c)
|
---|
800 | {
|
---|
801 | // Let the compiler do some optimization by
|
---|
802 | // knowing that we only have 1, 2, 4 and 8
|
---|
803 | switch (c.size)
|
---|
804 | {
|
---|
805 | case 1: memcpy (dest, src, c.bytes); break;
|
---|
806 | case 2: revcpy<2>(dest, src, c.num); break;
|
---|
807 | case 4: revcpy<4>(dest, src, c.num); break;
|
---|
808 | case 8: revcpy<8>(dest, src, c.num); break;
|
---|
809 | }
|
---|
810 | }
|
---|
811 |
|
---|
812 | #if !defined(__MARS__) && !defined(__CINT__)
|
---|
813 | virtual bool GetRow(size_t row, bool check=true)
|
---|
814 | #else
|
---|
815 | virtual bool GetRowNum(size_t row, bool check=true)
|
---|
816 | #endif
|
---|
817 | {
|
---|
818 | if (check && row>=fTable.num_rows)
|
---|
819 | return false;
|
---|
820 |
|
---|
821 | const uint8_t offset = ReadRow(row);
|
---|
822 | if (!good())
|
---|
823 | return good();
|
---|
824 |
|
---|
825 | const char *ptr = fBufferRow.data() + offset;
|
---|
826 |
|
---|
827 | for (Addresses::const_iterator it=fAddresses.begin(); it!=fAddresses.end(); it++)
|
---|
828 | {
|
---|
829 | const Table::Column &c = it->second;
|
---|
830 |
|
---|
831 | const char *src = ptr + c.offset;
|
---|
832 | char *dest = reinterpret_cast<char*>(it->first);
|
---|
833 |
|
---|
834 | MoveColumnDataToUserSpace(dest, src, c);
|
---|
835 | }
|
---|
836 |
|
---|
837 | return good();
|
---|
838 | }
|
---|
839 |
|
---|
840 | bool GetNextRow(bool check=true)
|
---|
841 | {
|
---|
842 | #if !defined(__MARS__) && !defined(__CINT__)
|
---|
843 | return GetRow(fRow+1, check);
|
---|
844 | #else
|
---|
845 | return GetRowNum(fRow+1, check);
|
---|
846 | #endif
|
---|
847 | }
|
---|
848 |
|
---|
849 | virtual bool SkipNextRow()
|
---|
850 | {
|
---|
851 | seekg(fTable.offset+(++fRow)*fTable.bytes_per_row);
|
---|
852 | return good();
|
---|
853 | }
|
---|
854 |
|
---|
855 | static bool Compare(const Address &p1, const Address &p2)
|
---|
856 | {
|
---|
857 | return p1.first>p2.first;
|
---|
858 | }
|
---|
859 |
|
---|
860 | template<class T, class S>
|
---|
861 | const T &GetAs(const string &name)
|
---|
862 | {
|
---|
863 | return *reinterpret_cast<S*>(fPointers[name]);
|
---|
864 | }
|
---|
865 |
|
---|
866 | void *SetPtrAddress(const string &name)
|
---|
867 | {
|
---|
868 | if (fTable.cols.count(name)==0)
|
---|
869 | {
|
---|
870 | ostringstream str;
|
---|
871 | str << "SetPtrAddress('" << name << "') - Column not found." << endl;
|
---|
872 | #ifdef __EXCEPTIONS
|
---|
873 | throw runtime_error(str.str());
|
---|
874 | #else
|
---|
875 | gLog << ___err___ << "ERROR - " << str.str() << endl;
|
---|
876 | return NULL;
|
---|
877 | #endif
|
---|
878 | }
|
---|
879 |
|
---|
880 | Pointers::const_iterator it = fPointers.find(name);
|
---|
881 | if (it!=fPointers.end())
|
---|
882 | return it->second;
|
---|
883 |
|
---|
884 | fGarbage.emplace_back(fTable.cols[name].bytes);
|
---|
885 |
|
---|
886 | void *ptr = fGarbage.back().data();
|
---|
887 |
|
---|
888 | fPointers[name] = ptr;
|
---|
889 | fAddresses.emplace_back(ptr, fTable.cols[name]);
|
---|
890 | sort(fAddresses.begin(), fAddresses.end(), Compare);
|
---|
891 | return ptr;
|
---|
892 | }
|
---|
893 |
|
---|
894 | template<typename T>
|
---|
895 | bool SetPtrAddress(const string &name, T *ptr, size_t cnt)
|
---|
896 | {
|
---|
897 | if (fTable.cols.count(name)==0)
|
---|
898 | {
|
---|
899 | ostringstream str;
|
---|
900 | str << "SetPtrAddress('" << name << "') - Column not found." << endl;
|
---|
901 | #ifdef __EXCEPTIONS
|
---|
902 | throw runtime_error(str.str());
|
---|
903 | #else
|
---|
904 | gLog << ___err___ << "ERROR - " << str.str() << endl;
|
---|
905 | return false;
|
---|
906 | #endif
|
---|
907 | }
|
---|
908 |
|
---|
909 | if (sizeof(T)!=fTable.cols[name].size)
|
---|
910 | {
|
---|
911 | ostringstream str;
|
---|
912 | str << "SetPtrAddress('" << name << "') - Element size mismatch: expected "
|
---|
913 | << fTable.cols[name].size << " from header, got " << sizeof(T) << endl;
|
---|
914 | #ifdef __EXCEPTIONS
|
---|
915 | throw runtime_error(str.str());
|
---|
916 | #else
|
---|
917 | gLog << ___err___ << "ERROR - " << str.str() << endl;
|
---|
918 | return false;
|
---|
919 | #endif
|
---|
920 | }
|
---|
921 |
|
---|
922 | if (cnt!=fTable.cols[name].num)
|
---|
923 | {
|
---|
924 | ostringstream str;
|
---|
925 | str << "SetPtrAddress('" << name << "') - Element count mismatch: expected "
|
---|
926 | << fTable.cols[name].num << " from header, got " << cnt << endl;
|
---|
927 | #ifdef __EXCEPTIONS
|
---|
928 | throw runtime_error(str.str());
|
---|
929 | #else
|
---|
930 | gLog << ___err___ << "ERROR - " << str.str() << endl;
|
---|
931 | return false;
|
---|
932 | #endif
|
---|
933 | }
|
---|
934 |
|
---|
935 | // if (fAddresses.count(ptr)>0)
|
---|
936 | // gLog << warn << "SetPtrAddress('" << name << "') - Pointer " << ptr << " already assigned." << endl;
|
---|
937 |
|
---|
938 | //fAddresses[ptr] = fTable.cols[name];
|
---|
939 | fPointers[name] = ptr;
|
---|
940 | fAddresses.emplace_back(ptr, fTable.cols[name]);
|
---|
941 | sort(fAddresses.begin(), fAddresses.end(), Compare);
|
---|
942 | return true;
|
---|
943 | }
|
---|
944 |
|
---|
945 | template<class T>
|
---|
946 | bool SetRefAddress(const string &name, T &ptr)
|
---|
947 | {
|
---|
948 | return SetPtrAddress(name, &ptr, sizeof(ptr)/sizeof(T));
|
---|
949 | }
|
---|
950 |
|
---|
951 | template<typename T>
|
---|
952 | bool SetVecAddress(const string &name, vector<T> &vec)
|
---|
953 | {
|
---|
954 | return SetPtrAddress(name, vec.data(), vec.size());
|
---|
955 | }
|
---|
956 |
|
---|
957 | template<typename T>
|
---|
958 | T Get(const string &key) const
|
---|
959 | {
|
---|
960 | return fTable.Get<T>(key);
|
---|
961 | }
|
---|
962 |
|
---|
963 | template<typename T>
|
---|
964 | T Get(const string &key, const string &deflt) const
|
---|
965 | {
|
---|
966 | return fTable.Get<T>(key, deflt);
|
---|
967 | }
|
---|
968 |
|
---|
969 | bool SetPtrAddress(const string &name, void *ptr)
|
---|
970 | {
|
---|
971 | if (fTable.cols.count(name)==0)
|
---|
972 | {
|
---|
973 | ostringstream str;
|
---|
974 | str <<"SetPtrAddress('" << name << "') - Column not found." << endl;
|
---|
975 | #ifdef __EXCEPTIONS
|
---|
976 | throw runtime_error(str.str());
|
---|
977 | #else
|
---|
978 | gLog << ___err___ << "ERROR - " << str.str() << endl;
|
---|
979 | return false;
|
---|
980 | #endif
|
---|
981 | }
|
---|
982 |
|
---|
983 | // if (fAddresses.count(ptr)>0)
|
---|
984 | // gLog << warn << "SetPtrAddress('" << name << "') - Pointer " << ptr << " already assigned." << endl;
|
---|
985 |
|
---|
986 | //fAddresses[ptr] = fTable.cols[name];
|
---|
987 | fPointers[name] = ptr;
|
---|
988 | fAddresses.emplace_back(ptr, fTable.cols[name]);
|
---|
989 | sort(fAddresses.begin(), fAddresses.end(), Compare);
|
---|
990 | return true;
|
---|
991 | }
|
---|
992 |
|
---|
993 | bool HasKey(const string &key) const { return fTable.HasKey(key); }
|
---|
994 | bool HasColumn(const string& col) const { return fTable.HasColumn(col);}
|
---|
995 | const Table::Columns &GetColumns() const { return fTable.GetColumns();}
|
---|
996 | const Table::SortedColumns& GetSortedColumns() const { return fTable.sortedCols;}
|
---|
997 | const Table::Keys &GetKeys() const { return fTable.GetKeys();}
|
---|
998 |
|
---|
999 | int64_t GetInt(const string &key) const { return fTable.Get<int64_t>(key); }
|
---|
1000 | uint64_t GetUInt(const string &key) const { return fTable.Get<uint64_t>(key); }
|
---|
1001 | double GetFloat(const string &key) const { return fTable.Get<double>(key); }
|
---|
1002 | string GetStr(const string &key) const { return fTable.Get<string>(key); }
|
---|
1003 |
|
---|
1004 | size_t GetN(const string &key) const
|
---|
1005 | {
|
---|
1006 | return fTable.GetN(key);
|
---|
1007 | }
|
---|
1008 |
|
---|
1009 | size_t GetNumRows() const { return fTable.num_rows; }
|
---|
1010 | size_t GetRow() const { return fRow==(size_t)-1 ? 0 : fRow; }
|
---|
1011 |
|
---|
1012 | operator bool() const { return fTable && fTable.offset!=0; }
|
---|
1013 |
|
---|
1014 | void PrintKeys() const { fTable.PrintKeys(); }
|
---|
1015 | void PrintColumns() const { fTable.PrintColumns(); }
|
---|
1016 |
|
---|
1017 | bool IsHeaderOk() const { return fTable.datasum<0?false:(fChkHeader+Checksum(fTable.datasum)).valid(); }
|
---|
1018 | bool IsFileOk() const { return (fChkHeader+fChkData).valid(); }
|
---|
1019 |
|
---|
1020 | bool IsCompressedFITS() const { return fTable.isCompressed;}
|
---|
1021 | };
|
---|
1022 |
|
---|
1023 | #ifndef __MARS__
|
---|
1024 | };
|
---|
1025 | #endif
|
---|
1026 | #endif
|
---|