| Geant4 Cross Reference |
1 // Copyright (C) 2010, Guy Barrand. All rights 1 // Copyright (C) 2010, Guy Barrand. All rights reserved.
2 // See the file tools.license for terms. 2 // See the file tools.license for terms.
3 3
4 #ifndef tools_wroot_file 4 #ifndef tools_wroot_file
5 #define tools_wroot_file 5 #define tools_wroot_file
6 6
7 #include "ifile" 7 #include "ifile"
8 8
9 #include "directory" 9 #include "directory"
10 10
11 #include "infos" 11 #include "infos"
12 #include "free_seg" 12 #include "free_seg"
13 13
14 #include "../platform" 14 #include "../platform"
15 15
16 #include "../path" 16 #include "../path"
17 17
18 #include <map> 18 #include <map>
19 19
20 #include <fcntl.h> 20 #include <fcntl.h>
21 #include <errno.h> 21 #include <errno.h>
22 #include <sys/stat.h> 22 #include <sys/stat.h>
23 23
24 #if defined(_MSC_VER) || defined(__MINGW32__) 24 #if defined(_MSC_VER) || defined(__MINGW32__)
25 #include <direct.h> 25 #include <direct.h>
26 #include <io.h> 26 #include <io.h>
27 #else 27 #else
28 #include <unistd.h> 28 #include <unistd.h>
29 #endif 29 #endif
30 30
31 namespace tools { 31 namespace tools {
32 namespace wroot { 32 namespace wroot {
33 33
34 class file : public virtual ifile { 34 class file : public virtual ifile {
35 file& get_me() {return *this;} //_MSC_VER : 35 file& get_me() {return *this;} //_MSC_VER : to avoid warning about the usage of "this" in the constructor.
36 static int not_open() {return -1;} 36 static int not_open() {return -1;}
37 static uint32 kBegin() {return 64;} 37 static uint32 kBegin() {return 64;}
38 public: 38 public:
39 static const std::string& s_class() { 39 static const std::string& s_class() {
40 static const std::string s_v("tools::wroot 40 static const std::string s_v("tools::wroot::file");
41 return s_v; 41 return s_v;
42 } 42 }
43 virtual const std::string& s_cls() const {re 43 virtual const std::string& s_cls() const {return s_class();}
44 public: //ifile 44 public: //ifile
45 virtual bool verbose() const {return m_verbo 45 virtual bool verbose() const {return m_verbose;}
46 virtual std::ostream& out() const {return m_ 46 virtual std::ostream& out() const {return m_out;}
47 47
48 virtual bool byte_swap() const {return is_li 48 virtual bool byte_swap() const {return is_little_endian();}
49 virtual bool set_pos(seek a_offset = 0,from 49 virtual bool set_pos(seek a_offset = 0,from a_from = begin){
50 int whence = 0; 50 int whence = 0;
51 switch(a_from) { 51 switch(a_from) {
52 case begin: 52 case begin:
53 whence = SEEK_SET; 53 whence = SEEK_SET;
54 break; 54 break;
55 case current: 55 case current:
56 whence = SEEK_CUR; 56 whence = SEEK_CUR;
57 break; 57 break;
58 case end: 58 case end:
59 whence = SEEK_END; 59 whence = SEEK_END;
60 break; 60 break;
61 } 61 }
62 62
63 #if defined(__linux__) && (__GLIBC__ == 2) && 63 #if defined(__linux__) && (__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 2)
64 if (::lseek64(m_file, a_offset, whence) < 64 if (::lseek64(m_file, a_offset, whence) < 0) {
65 #elif defined(_MSC_VER) || defined(__MINGW32__ 65 #elif defined(_MSC_VER) || defined(__MINGW32__)
66 if (::_lseeki64(m_file, a_offset, whence) 66 if (::_lseeki64(m_file, a_offset, whence) < 0) {
67 #else 67 #else
68 if (::lseek(m_file, a_offset, whence) < 0) 68 if (::lseek(m_file, a_offset, whence) < 0) {
69 #endif 69 #endif
70 m_out << "tools::wroot::file::set_pos :" 70 m_out << "tools::wroot::file::set_pos :"
71 << " cannot set position " << a_of 71 << " cannot set position " << a_offset
72 << " in file " << sout(m_path) << 72 << " in file " << sout(m_path) << "."
73 << std::endl; 73 << std::endl;
74 return false; 74 return false;
75 } 75 }
76 return true; 76 return true;
77 } 77 }
78 78
79 virtual seek END() const {return m_END;} 79 virtual seek END() const {return m_END;}
80 virtual void set_END(seek a_end){ 80 virtual void set_END(seek a_end){
81 m_END = a_end; 81 m_END = a_end;
82 82
83 if(m_free_segs.empty()) { 83 if(m_free_segs.empty()) {
84 m_out << "tools::wroot::file::set_END :" 84 m_out << "tools::wroot::file::set_END :"
85 << " free_seg list should not be e 85 << " free_seg list should not be empty here."
86 << std::endl; 86 << std::endl;
87 } else { 87 } else {
88 free_seg* end_seg = m_free_segs.back(); 88 free_seg* end_seg = m_free_segs.back();
89 if(end_seg->last()!=START_BIG_FILE()) { 89 if(end_seg->last()!=START_BIG_FILE()) {
90 m_out << "tools::wroot::file::set_END 90 m_out << "tools::wroot::file::set_END :"
91 << " last free_seg is not the en 91 << " last free_seg is not the ending of file one."
92 << " free_seg list looks corrupt 92 << " free_seg list looks corrupted."
93 << std::endl; 93 << std::endl;
94 } else { 94 } else {
95 m_free_segs.back()->set_first(m_END); 95 m_free_segs.back()->set_first(m_END);
96 } 96 }
97 } 97 }
98 } 98 }
99 99
100 virtual bool write_buffer(const char* a_buff 100 virtual bool write_buffer(const char* a_buffer,uint32 a_length) {
101 // Write a buffer to the file. This is the 101 // Write a buffer to the file. This is the basic low level write operation.
102 #ifdef _MSC_VER 102 #ifdef _MSC_VER
103 typedef int ssize_t; 103 typedef int ssize_t;
104 #endif 104 #endif
105 ssize_t siz; 105 ssize_t siz;
106 while ((siz = ::write(m_file,a_buffer,a_le 106 while ((siz = ::write(m_file,a_buffer,a_length)) < 0 &&
107 error_number() == EINTR) reset_err 107 error_number() == EINTR) reset_error_number();
108 108
109 if(siz < 0) { 109 if(siz < 0) {
110 m_out << "tools::wroot::file::write_buff 110 m_out << "tools::wroot::file::write_buffer :"
111 << " error writing to file " << so 111 << " error writing to file " << sout(m_path) << "."
112 << std::endl; 112 << std::endl;
113 return false; 113 return false;
114 } 114 }
115 if(siz!=(ssize_t)a_length) { 115 if(siz!=(ssize_t)a_length) {
116 m_out << "tools::wroot::file::write_buff 116 m_out << "tools::wroot::file::write_buffer :"
117 << "error writing all requested byt 117 << "error writing all requested bytes to file " << sout(m_path)
118 << ", wrote " << long_out(siz) << " 118 << ", wrote " << long_out(siz) << " of " << a_length
119 << std::endl; 119 << std::endl;
120 return false; 120 return false;
121 } 121 }
122 //m_bytes_write += siz; 122 //m_bytes_write += siz;
123 return true; 123 return true;
124 } 124 }
125 125
126 virtual uint32 version() const { 126 virtual uint32 version() const {
127 // Return version id as an integer, i.e. " 127 // Return version id as an integer, i.e. "2.22/04" -> 22204.
128 static const uint32 ROOT_MAJOR_VERSION = 4 128 static const uint32 ROOT_MAJOR_VERSION = 4;
129 static const uint32 ROOT_MINOR_VERSION = 0 129 static const uint32 ROOT_MINOR_VERSION = 0;
130 static const uint32 ROOT_PATCH_VERSION = 0 130 static const uint32 ROOT_PATCH_VERSION = 0;
131 return 131 return
132 10000 * ROOT_MAJOR_VERSION + 132 10000 * ROOT_MAJOR_VERSION +
133 100 * ROOT_MINOR_VERSION + 133 100 * ROOT_MINOR_VERSION +
134 ROOT_PATCH_VERSION; 134 ROOT_PATCH_VERSION;
135 } 135 }
136 136
137 virtual bool synchronize(){ 137 virtual bool synchronize(){
138 // Synchornize a file's in-core and on-dis 138 // Synchornize a file's in-core and on-disk states.
139 #ifdef _MSC_VER 139 #ifdef _MSC_VER
140 if(::_commit(m_file)) { 140 if(::_commit(m_file)) {
141 m_out << "tools::wroot::file::synchroniz 141 m_out << "tools::wroot::file::synchronize :"
142 << " in _commit() for file " << so 142 << " in _commit() for file " << sout(m_path) << "."
143 << std::endl; 143 << std::endl;
144 return false; 144 return false;
145 } 145 }
146 #elif defined(__MINGW32__) 146 #elif defined(__MINGW32__)
147 return true; 147 return true;
148 #else 148 #else
149 if (::fsync(m_file) < 0) { 149 if (::fsync(m_file) < 0) {
150 m_out << "tools::wroot::file::synchroniz 150 m_out << "tools::wroot::file::synchronize :"
151 << " error in fsync() for file " < 151 << " error in fsync() for file " << sout(m_path) << "."
152 << std::endl; 152 << std::endl;
153 return false; 153 return false;
154 } 154 }
155 #endif 155 #endif
156 return true; 156 return true;
157 } 157 }
158 158
159 virtual bool ziper(char a_key,compress_func& 159 virtual bool ziper(char a_key,compress_func& a_func) const {
160 std::map<char,compress_func>::const_iterat 160 std::map<char,compress_func>::const_iterator it = m_zipers.find(a_key);
161 if(it==m_zipers.end()) { 161 if(it==m_zipers.end()) {
162 a_func = 0; 162 a_func = 0;
163 return false; 163 return false;
164 } 164 }
165 a_func = (*it).second; 165 a_func = (*it).second;
166 return true; 166 return true;
167 } 167 }
168 virtual uint32 compression() const {return m 168 virtual uint32 compression() const {return m_compress;}
169 virtual void compress_buffer(const buffer& a 169 virtual void compress_buffer(const buffer& a_buffer,char*& a_kbuf,uint32& a_klen,bool& a_kdel) {
170 //NOTE: if(kdelete) delete [] kbuf; << 170 //NOTE : if(kdelete) delete [] kbuf;
171 171
172 a_kbuf = 0; 172 a_kbuf = 0;
173 a_klen = 0; 173 a_klen = 0;
174 a_kdel = false; 174 a_kdel = false;
175 175
176 uint32 nbytes = a_buffer.length(); 176 uint32 nbytes = a_buffer.length();
177 uint32 cxlevel = m_compress; 177 uint32 cxlevel = m_compress;
178 if(cxlevel && (nbytes>256)) { 178 if(cxlevel && (nbytes>256)) {
179 compress_func func; 179 compress_func func;
180 if(!ziper('Z',func)) { 180 if(!ziper('Z',func)) {
181 //m_out << "tools::wroot::file::compre << 181 //m_out << "tools::wroot::directory::write_object :"
182 // << " zlib ziper not found." 182 // << " zlib ziper not found."
183 // << std::endl; 183 // << std::endl;
184 a_kbuf = (char*)a_buffer.buf(); 184 a_kbuf = (char*)a_buffer.buf();
185 a_klen = a_buffer.length(); 185 a_klen = a_buffer.length();
186 a_kdel = false; 186 a_kdel = false;
187 } else { 187 } else {
188 const uint32 kMAXBUF = 0xffffff; 188 const uint32 kMAXBUF = 0xffffff;
189 const uint32 HDRSIZE = 9; 189 const uint32 HDRSIZE = 9;
190 uint32 nbuffers = nbytes/kMAXBUF; 190 uint32 nbuffers = nbytes/kMAXBUF;
191 uint32 buf_out_size = kMAXBUF+HDRSIZE+ << 191 uint32 buflen = nbytes+HDRSIZE*(nbuffers+1);
192 uint32 buflen = (nbuffers+1)*buf_out_s <<
193 a_kbuf = new char[buflen]; 192 a_kbuf = new char[buflen];
194 a_kdel = true; 193 a_kdel = true;
195 char* src = (char*)a_buffer.buf(); 194 char* src = (char*)a_buffer.buf();
196 char* tgt = a_kbuf; 195 char* tgt = a_kbuf;
197 uint32 nzip = 0; 196 uint32 nzip = 0;
198 for(uint32 i=0;i<=nbuffers;i++) { 197 for(uint32 i=0;i<=nbuffers;i++) {
199 uint32 bufmax = ((i == nbuffers) ? n 198 uint32 bufmax = ((i == nbuffers) ? nbytes - nzip : kMAXBUF);
200 uint32 nout; 199 uint32 nout;
201 if(!zip(m_out,func,cxlevel,bufmax,sr << 200 if(!zip(m_out,func,cxlevel,bufmax,src,bufmax,tgt,nout)) {
202 delete [] a_kbuf; 201 delete [] a_kbuf;
203 a_kbuf = (char*)a_buffer.buf(); 202 a_kbuf = (char*)a_buffer.buf();
204 a_klen = a_buffer.length(); 203 a_klen = a_buffer.length();
205 a_kdel = false; 204 a_kdel = false;
206 return; << 205 break;
207 } 206 }
208 tgt += nout; //nout includes HDRSIZE 207 tgt += nout; //nout includes HDRSIZE
209 a_klen += nout; 208 a_klen += nout;
210 src += kMAXBUF; 209 src += kMAXBUF;
211 nzip += kMAXBUF; 210 nzip += kMAXBUF;
212 } 211 }
213 if(a_klen>=a_buffer.length()) { << 212 //::printf("debug : compress : end : %u %u\n",nbytes,klen);
214 //NOTE: It is in the ROOT/IO specifi <<
215 // are detected at read time by <<
216 // the overall output size (fNb <<
217 // By using the zlib-ng compres <<
218 // output size (a_klen here at <<
219 // induces problem when reading <<
220 delete [] a_kbuf; <<
221 a_kbuf = (char*)a_buffer.buf(); <<
222 a_klen = a_buffer.length(); <<
223 a_kdel = false; <<
224 } <<
225 } 213 }
226 } else { 214 } else {
227 a_kbuf = (char*)a_buffer.buf(); 215 a_kbuf = (char*)a_buffer.buf();
228 a_klen = a_buffer.length(); 216 a_klen = a_buffer.length();
229 a_kdel = false; 217 a_kdel = false;
230 } 218 }
231 } 219 }
232 public: 220 public:
233 file(std::ostream& a_out,const std::string& 221 file(std::ostream& a_out,const std::string& a_path,bool a_verbose = false)
234 :m_out(a_out) 222 :m_out(a_out)
235 ,m_path(a_path) 223 ,m_path(a_path)
236 ,m_verbose(a_verbose) 224 ,m_verbose(a_verbose)
237 ,m_file(not_open()) 225 ,m_file(not_open())
238 //,m_bytes_write(0) 226 //,m_bytes_write(0)
239 ,m_root_directory(get_me(),nosuffix(a_path), 227 ,m_root_directory(get_me(),nosuffix(a_path),m_title)
240 // begin of record : 228 // begin of record :
241 ,m_version(0) 229 ,m_version(0)
242 ,m_BEGIN(0) 230 ,m_BEGIN(0)
243 ,m_END(0) 231 ,m_END(0)
244 ,m_seek_free(0) 232 ,m_seek_free(0)
245 ,m_nbytes_free(0) 233 ,m_nbytes_free(0)
246 ,m_nbytes_name(0) 234 ,m_nbytes_name(0)
247 ,m_units(4) 235 ,m_units(4)
248 ,m_compress(1) 236 ,m_compress(1)
249 ,m_seek_info(0) 237 ,m_seek_info(0)
250 ,m_nbytes_info(0) 238 ,m_nbytes_info(0)
251 { 239 {
252 #ifdef TOOLS_MEM 240 #ifdef TOOLS_MEM
253 mem::increment(s_class().c_str()); 241 mem::increment(s_class().c_str());
254 #endif 242 #endif
255 243
256 m_version = version(); 244 m_version = version();
257 245
258 if(access_path(m_path,kFileExists)) unlink 246 if(access_path(m_path,kFileExists)) unlink(m_path);
259 247
260 if(!m_root_directory.is_valid()) { 248 if(!m_root_directory.is_valid()) {
261 m_out << "tools::wroot::file::file :" 249 m_out << "tools::wroot::file::file :"
262 << " " << sout(m_path) << " root d 250 << " " << sout(m_path) << " root directory badly created."
263 << std::endl; 251 << std::endl;
264 return; 252 return;
265 } 253 }
266 254
267 m_file = _open(a_path.c_str(), 255 m_file = _open(a_path.c_str(),
268 #if defined(_MSC_VER) || defined(__MINGW32__) 256 #if defined(_MSC_VER) || defined(__MINGW32__)
269 O_RDWR | O_CREA 257 O_RDWR | O_CREAT | O_BINARY,S_IREAD | S_IWRITE
270 #else 258 #else
271 O_RDWR | O_CREA 259 O_RDWR | O_CREAT,0644
272 #endif 260 #endif
273 ); 261 );
274 if(m_file==not_open()) { 262 if(m_file==not_open()) {
275 m_out << "tools::wroot::file::file :" 263 m_out << "tools::wroot::file::file :"
276 << " can't open " << sout(a_path) 264 << " can't open " << sout(a_path) << "."
277 << std::endl; 265 << std::endl;
278 return; 266 return;
279 } 267 }
280 268
281 //initialize : 269 //initialize :
282 270
283 m_BEGIN = kBegin(); // First used word in 271 m_BEGIN = kBegin(); // First used word in file following the file header.
284 m_END = m_BEGIN; // Pointer to end of fi 272 m_END = m_BEGIN; // Pointer to end of file.
285 273
286 m_free_segs.push_back(new free_seg(m_out,m 274 m_free_segs.push_back(new free_seg(m_out,m_BEGIN,START_BIG_FILE()));
287 275
288 // Write Directory info : 276 // Write Directory info :
289 uint32 namelen = 277 uint32 namelen =
290 key::std_string_record_size(m_path) + 278 key::std_string_record_size(m_path) +
291 key::std_string_record_size(m_title); 279 key::std_string_record_size(m_title);
292 uint32 nbytes = namelen + m_root_directory 280 uint32 nbytes = namelen + m_root_directory.record_size();
293 <<
294 //TUUID version 1: <<
295 nbytes += sizeof(unsigned int); <<
296 nbytes += 2*sizeof(unsigned short); <<
297 nbytes += 8*sizeof(unsigned char); <<
298 <<
299 wroot::key key(m_out,*this,0,m_path,m_titl 281 wroot::key key(m_out,*this,0,m_path,m_title,"TFile",nbytes); // It does a (*this).set_END().
300 282
301 // m_nbytes_name = start point of director 283 // m_nbytes_name = start point of directory info from key head.
302 m_nbytes_name = key.key_length() + namelen 284 m_nbytes_name = key.key_length() + namelen;
303 m_root_directory.set_nbytes_name(m_nbytes_ 285 m_root_directory.set_nbytes_name(m_nbytes_name);
304 m_root_directory.set_seek_directory(key.se 286 m_root_directory.set_seek_directory(key.seek_key()); //at EOF.
305 287
306 //the below write 45 bytes at BOF (Begin O 288 //the below write 45 bytes at BOF (Begin Of File).
307 if(!write_header()) { //need m_nbytes_name 289 if(!write_header()) { //need m_nbytes_name, m_END after key written.
308 m_out << "tools::wroot::file::file :" 290 m_out << "tools::wroot::file::file :"
309 << " can't write file header." 291 << " can't write file header."
310 << std::endl; 292 << std::endl;
311 return; 293 return;
312 } 294 }
313 295
314 {char* pos = key.data_buffer(); 296 {char* pos = key.data_buffer();
315 wbuf wb(m_out,byte_swap(),key.eob(),pos); 297 wbuf wb(m_out,byte_swap(),key.eob(),pos);
316 if(!wb.write(m_path)) return; 298 if(!wb.write(m_path)) return;
317 if(!wb.write(m_title)) return; 299 if(!wb.write(m_title)) return;
318 if(!m_root_directory.to_buffer(wb)) return << 300 if(!m_root_directory.to_buffer(wb)) return;}
319 //TUUID version 1: <<
320 if(!wb.write((unsigned int)0)) return; <<
321 if(!wb.write((unsigned short)0)) return; <<
322 if(!wb.write((unsigned short)0)) return; <<
323 {for(size_t count=0;count<8;count++) if(!wb <<
324 301
325 if(m_verbose) { 302 if(m_verbose) {
326 m_out << "tools::wroot::file::file :" 303 m_out << "tools::wroot::file::file :"
327 << " write key (" 304 << " write key ("
328 << namelen 305 << namelen
329 << ", " 306 << ", "
330 << m_root_directory.record_size() 307 << m_root_directory.record_size()
331 << ", " 308 << ", "
332 << nbytes 309 << nbytes
333 << ", " 310 << ", "
334 << m_nbytes_name 311 << m_nbytes_name
335 << ", " 312 << ", "
336 << key.seek_key() 313 << key.seek_key()
337 << ")." 314 << ")."
338 << std::endl; 315 << std::endl;
339 } 316 }
340 317
341 key.set_cycle(1); 318 key.set_cycle(1);
342 if(!key.write_self(*this)) { 319 if(!key.write_self(*this)) {
343 m_out << "tools::wroot::file::file :" 320 m_out << "tools::wroot::file::file :"
344 << " key.write_self() failed." 321 << " key.write_self() failed."
345 << std::endl; 322 << std::endl;
346 return; 323 return;
347 } 324 }
348 325
349 //the below write at kBegin + nbytes. 326 //the below write at kBegin + nbytes.
350 //64+52 327 //64+52
351 uint32 n; 328 uint32 n;
352 if(!key.write_file(*this,n)) { 329 if(!key.write_file(*this,n)) {
353 m_out << "tools::wroot::file::file :" 330 m_out << "tools::wroot::file::file :"
354 << " can't write key in file." 331 << " can't write key in file."
355 << std::endl; 332 << std::endl;
356 return; 333 return;
357 } 334 }
358 //::printf("debug : file::file : write key 335 //::printf("debug : file::file : write key : %d\n",n);
359 336
360 } 337 }
361 virtual ~file() { 338 virtual ~file() {
362 close(); 339 close();
363 #ifdef TOOLS_MEM 340 #ifdef TOOLS_MEM
364 mem::decrement(s_class().c_str()); 341 mem::decrement(s_class().c_str());
365 #endif 342 #endif
366 } 343 }
367 protected: 344 protected:
368 file(const file& a_from) 345 file(const file& a_from)
369 :ifile(a_from) 346 :ifile(a_from)
370 ,m_out(a_from.m_out) 347 ,m_out(a_from.m_out)
371 ,m_root_directory(get_me()) 348 ,m_root_directory(get_me())
372 { 349 {
373 #ifdef TOOLS_MEM 350 #ifdef TOOLS_MEM
374 mem::increment(s_class().c_str()); 351 mem::increment(s_class().c_str());
375 #endif 352 #endif
376 } 353 }
377 file& operator=(const file&){return *this;} 354 file& operator=(const file&){return *this;}
378 public: 355 public:
379 const std::string& path() const {return m_pa 356 const std::string& path() const {return m_path;}
380 357
381 void set_compression(uint32 a_level) { 358 void set_compression(uint32 a_level) {
382 // level = 0 objects written to this file 359 // level = 0 objects written to this file will not be compressed.
383 // level = 1 minimal compression level but 360 // level = 1 minimal compression level but fast.
384 // .... 361 // ....
385 // level = 9 maximal compression level but 362 // level = 9 maximal compression level but slow.
386 m_compress = a_level; 363 m_compress = a_level;
387 if(m_compress>9) m_compress = 9; 364 if(m_compress>9) m_compress = 9;
388 } 365 }
389 366
390 bool is_open() const {return (m_file==not_op 367 bool is_open() const {return (m_file==not_open()?false:true);}
391 368
392 void close() { 369 void close() {
393 if(m_file==not_open()) return; 370 if(m_file==not_open()) return;
394 m_root_directory.close(); 371 m_root_directory.close();
395 372
396 if(m_free_segs.size()) { 373 if(m_free_segs.size()) {
397 if(!write_free_segments()) { 374 if(!write_free_segments()) {
398 m_out << "tools::wroot::file::close :" 375 m_out << "tools::wroot::file::close :"
399 << " can't write free segments." 376 << " can't write free segments."
400 << std::endl; 377 << std::endl;
401 } 378 }
402 if(!write_header()) { // Now write file 379 if(!write_header()) { // Now write file header
403 m_out << "tools::wroot::file::close :" 380 m_out << "tools::wroot::file::close :"
404 << " can't write file header." 381 << " can't write file header."
405 << std::endl; 382 << std::endl;
406 } 383 }
407 } 384 }
408 385
409 {std::list<free_seg*>::iterator it; 386 {std::list<free_seg*>::iterator it;
410 for(it=m_free_segs.begin(); 387 for(it=m_free_segs.begin();
411 it!=m_free_segs.end(); 388 it!=m_free_segs.end();
412 it = m_free_segs.erase(it)) { 389 it = m_free_segs.erase(it)) {
413 delete (*it); 390 delete (*it);
414 }} 391 }}
415 392
416 ::close(m_file); 393 ::close(m_file);
417 m_file = not_open(); 394 m_file = not_open();
418 } 395 }
419 396
420 directory& dir() {return m_root_directory;} 397 directory& dir() {return m_root_directory;}
421 const directory& dir() const {return m_root_ 398 const directory& dir() const {return m_root_directory;}
422 399
423 bool write(uint32& a_nbytes){ 400 bool write(uint32& a_nbytes){
424 // Write memory objects to this file : 401 // Write memory objects to this file :
425 // Loop on all objects in m_root_director 402 // Loop on all objects in m_root_directory (including subdirectories).
426 // A new key is created in the directorie 403 // A new key is created in the directories m_keys linked list
427 // for each object. 404 // for each object.
428 // The list of keys is then saved on the 405 // The list of keys is then saved on the file (via write_keys)
429 // as a single data record. 406 // as a single data record.
430 // The directory header info is rewritten 407 // The directory header info is rewritten on the directory header record.
431 // //The linked list of FREE segments is 408 // //The linked list of FREE segments is written.
432 // The file header is written (bytes 1->m 409 // The file header is written (bytes 1->m_BEGIN).
433 a_nbytes = 0; 410 a_nbytes = 0;
434 411
435 if(m_verbose) { 412 if(m_verbose) {
436 m_out << "tools::wroot::file::write :" 413 m_out << "tools::wroot::file::write :"
437 << " writing Name=" << sout(m_path 414 << " writing Name=" << sout(m_path)
438 << " Title=" << sout(m_title) << " 415 << " Title=" << sout(m_title) << "."
439 << std::endl; 416 << std::endl;
440 } 417 }
441 418
442 uint32 nbytes; 419 uint32 nbytes;
443 if(!m_root_directory.write(nbytes)) return 420 if(!m_root_directory.write(nbytes)) return false; // Write directory tree
444 421
445 if(!write_streamer_infos()) { 422 if(!write_streamer_infos()) {
446 m_out << "tools::wroot::file::write :" 423 m_out << "tools::wroot::file::write :"
447 << " write_streamer_infos failed." 424 << " write_streamer_infos failed."
448 << std::endl; 425 << std::endl;
449 return false; 426 return false;
450 } 427 }
451 428
452 if(!write_free_segments()) { 429 if(!write_free_segments()) {
453 m_out << "tools::wroot::file::write :" 430 m_out << "tools::wroot::file::write :"
454 << " can't write free segments." 431 << " can't write free segments."
455 << std::endl; 432 << std::endl;
456 return false; 433 return false;
457 } 434 }
458 435
459 if(!write_header()) { //write 45 bytes at 436 if(!write_header()) { //write 45 bytes at BOF.
460 m_out << "tools::wroot::file::write :" 437 m_out << "tools::wroot::file::write :"
461 << " can't write file header." 438 << " can't write file header."
462 << std::endl; 439 << std::endl;
463 return false; 440 return false;
464 } 441 }
465 442
466 a_nbytes = nbytes; 443 a_nbytes = nbytes;
467 return true; 444 return true;
468 } 445 }
469 446
470 bool add_ziper(char a_key,compress_func a_fu 447 bool add_ziper(char a_key,compress_func a_func){
471 std::map<char,compress_func>::const_iterat 448 std::map<char,compress_func>::const_iterator it = m_zipers.find(a_key);
472 if(it!=m_zipers.end()) { 449 if(it!=m_zipers.end()) {
473 //(*it).second = a_func; //override ? 450 //(*it).second = a_func; //override ?
474 return false; 451 return false;
475 } else { 452 } else {
476 m_zipers[a_key] = a_func; 453 m_zipers[a_key] = a_func;
477 return true; 454 return true;
478 } 455 }
479 } 456 }
480 protected: 457 protected:
481 enum EAccessMode { 458 enum EAccessMode {
482 kFileExists = 0, 459 kFileExists = 0,
483 kExecutePermission = 1, 460 kExecutePermission = 1,
484 kWritePermission = 2, 461 kWritePermission = 2,
485 kReadPermission = 4 462 kReadPermission = 4
486 }; 463 };
487 static bool access_path(const std::string& a 464 static bool access_path(const std::string& a_path,EAccessMode a_mode){
488 // Returns true if one can access a file u 465 // Returns true if one can access a file using the specified access mode.
489 // Mode is the same as for the WinNT acces 466 // Mode is the same as for the WinNT access(2) function.
490 #ifdef _MSC_VER 467 #ifdef _MSC_VER
491 return (::_access(a_path.c_str(),a_mode) = 468 return (::_access(a_path.c_str(),a_mode) == 0) ? true : false;
492 #else 469 #else
493 return (::access(a_path.c_str(),a_mode) == 470 return (::access(a_path.c_str(),a_mode) == 0) ? true : false;
494 #endif 471 #endif
495 } 472 }
496 static bool unlink(const std::string& a_path 473 static bool unlink(const std::string& a_path){
497 // Unlink, i.e. remove, a file or director 474 // Unlink, i.e. remove, a file or directory. Returns true when succesfull,
498 // false in case of failure. 475 // false in case of failure.
499 struct stat finfo; 476 struct stat finfo;
500 if (::stat(a_path.c_str(),&finfo) < 0) ret 477 if (::stat(a_path.c_str(),&finfo) < 0) return false;
501 #ifdef _MSC_VER 478 #ifdef _MSC_VER
502 if (finfo.st_mode & S_IFDIR) 479 if (finfo.st_mode & S_IFDIR)
503 return (::_rmdir(a_path.c_str())==-1 ? f 480 return (::_rmdir(a_path.c_str())==-1 ? false : true);
504 else 481 else
505 return (::unlink(a_path.c_str())==-1 ? f 482 return (::unlink(a_path.c_str())==-1 ? false : true);
506 #else 483 #else
507 if (S_ISDIR(finfo.st_mode)) 484 if (S_ISDIR(finfo.st_mode))
508 return (::rmdir(a_path.c_str())==-1 ? fa 485 return (::rmdir(a_path.c_str())==-1 ? false : true);
509 else 486 else
510 return (::unlink(a_path.c_str())==-1 ? f 487 return (::unlink(a_path.c_str())==-1 ? false : true);
511 #endif 488 #endif
512 } 489 }
513 490
514 static int _open(const char* a_name,int a_fl 491 static int _open(const char* a_name,int a_flags,unsigned int a_mode) {
515 #if defined(__linux__) && (__GLIBC__ == 2) && 492 #if defined(__linux__) && (__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 2)
516 return ::open64(a_name,a_flags,a_mode); 493 return ::open64(a_name,a_flags,a_mode);
517 #else 494 #else
518 return ::open(a_name,a_flags,a_mode); 495 return ::open(a_name,a_flags,a_mode);
519 #endif 496 #endif
520 } 497 }
521 bool write_header() { 498 bool write_header() {
522 const char root[] = "root"; 499 const char root[] = "root";
523 //char psave[kBegin()]; 500 //char psave[kBegin()];
524 char psave[128]; 501 char psave[128];
525 const char* eob = psave + kBegin(); 502 const char* eob = psave + kBegin();
526 char* pos = psave; 503 char* pos = psave;
527 ::memcpy(pos,root,4); pos += 4; 504 ::memcpy(pos,root,4); pos += 4;
528 uint32 vers = m_version; 505 uint32 vers = m_version;
529 if((m_END>START_BIG_FILE()) || 506 if((m_END>START_BIG_FILE()) ||
530 (m_seek_free>START_BIG_FILE()) || 507 (m_seek_free>START_BIG_FILE()) ||
531 (m_seek_info>START_BIG_FILE()) ){ 508 (m_seek_info>START_BIG_FILE()) ){
532 vers += 1000000; 509 vers += 1000000;
533 m_units = 8; 510 m_units = 8;
534 } 511 }
535 wbuf wb(m_out,byte_swap(),eob,pos); 512 wbuf wb(m_out,byte_swap(),eob,pos);
536 if(!wb.write(vers)) return false; 513 if(!wb.write(vers)) return false;
537 if(!wb.write((seek32)m_BEGIN)) return fals 514 if(!wb.write((seek32)m_BEGIN)) return false;
538 if(vers>1000000) { 515 if(vers>1000000) {
539 if(!wb.write(m_END)) return false; 516 if(!wb.write(m_END)) return false;
540 if(!wb.write(m_seek_free)) return false; 517 if(!wb.write(m_seek_free)) return false;
541 } else { 518 } else {
542 if(!wb.write((seek32)m_END)) return fals 519 if(!wb.write((seek32)m_END)) return false;
543 if(!wb.write((seek32)m_seek_free)) retur 520 if(!wb.write((seek32)m_seek_free)) return false;
544 } 521 }
545 if(!wb.write(m_nbytes_free)) return false; 522 if(!wb.write(m_nbytes_free)) return false;
546 //int nfree = fFreeSegments.size(); 523 //int nfree = fFreeSegments.size();
547 uint32 nfree = 0; //FIXME 524 uint32 nfree = 0; //FIXME
548 if(!wb.write(nfree)) return false; 525 if(!wb.write(nfree)) return false;
549 if(!wb.write(m_nbytes_name)) return false; 526 if(!wb.write(m_nbytes_name)) return false;
550 if(!wb.write(m_units)) return false; 527 if(!wb.write(m_units)) return false;
551 if(!wb.write(m_compress)) return false; 528 if(!wb.write(m_compress)) return false;
552 if(vers>1000000) { 529 if(vers>1000000) {
553 if(!wb.write(m_seek_info)) return false; 530 if(!wb.write(m_seek_info)) return false;
554 } else { 531 } else {
555 if(!wb.write((seek32)m_seek_info)) retur 532 if(!wb.write((seek32)m_seek_info)) return false;
556 } 533 }
557 if(!wb.write(m_nbytes_info)) return false; 534 if(!wb.write(m_nbytes_info)) return false;
558 if(!set_pos()) return false; //BOF 535 if(!set_pos()) return false; //BOF
559 uint32 nbytes = uint32(pos - psave); 536 uint32 nbytes = uint32(pos - psave);
560 //::printf("debug : write_header : %d\n",n 537 //::printf("debug : write_header : %d\n",nbytes);
561 if(!write_buffer(psave,nbytes)) return fal 538 if(!write_buffer(psave,nbytes)) return false;
562 if(!synchronize()) return false; 539 if(!synchronize()) return false;
563 return true; 540 return true;
564 } 541 }
565 542
566 bool write_streamer_infos() { 543 bool write_streamer_infos() {
567 obj_list<streamer_info> sinfos; 544 obj_list<streamer_info> sinfos;
568 fill_infos(sinfos,m_out); 545 fill_infos(sinfos,m_out);
569 546
570 if(sinfos.empty()) return false; 547 if(sinfos.empty()) return false;
571 548
572 buffer bref(m_out,byte_swap(),256); 549 buffer bref(m_out,byte_swap(),256);
573 550
574 if(!sinfos.stream(bref)) { 551 if(!sinfos.stream(bref)) {
575 m_out << "tools::wroot::file::write_stre 552 m_out << "tools::wroot::file::write_streamer_infos :"
576 << " cannot stream obj_list<stream 553 << " cannot stream obj_list<streamer_info>."
577 << std::endl; 554 << std::endl;
578 return false; 555 return false;
579 } 556 }
580 uint32 nbytes = bref.length(); 557 uint32 nbytes = bref.length();
581 558
582 wroot::key key(m_out,*this, 559 wroot::key key(m_out,*this,
583 m_root_directory.seek_direc 560 m_root_directory.seek_directory(),
584 "StreamerInfo","", 561 "StreamerInfo","",
585 sinfos.store_cls(), 562 sinfos.store_cls(),
586 nbytes); // It does a (*thi 563 nbytes); // It does a (*this).set_END().
587 if(!key.seek_key()) return false; 564 if(!key.seek_key()) return false;
588 565
589 if(!bref.displace_mapped(key.key_length()) 566 if(!bref.displace_mapped(key.key_length())) return false;
590 567
591 ::memcpy(key.data_buffer(),bref.buf(),nbyt 568 ::memcpy(key.data_buffer(),bref.buf(),nbytes);
592 569
593 //key.set_cycle(1); 570 //key.set_cycle(1);
594 if(!key.write_self(*this)) { 571 if(!key.write_self(*this)) {
595 m_out << "tools::wroot::file::write_stre 572 m_out << "tools::wroot::file::write_streamer_infos :"
596 << " key.write_self() failed." 573 << " key.write_self() failed."
597 << std::endl; 574 << std::endl;
598 return false; 575 return false;
599 } 576 }
600 577
601 m_seek_info = key.seek_key(); 578 m_seek_info = key.seek_key();
602 m_nbytes_info = key.number_of_bytes(); 579 m_nbytes_info = key.number_of_bytes();
603 //FIXME sumBuffer(key.objectSize()); 580 //FIXME sumBuffer(key.objectSize());
604 581
605 uint32 n; 582 uint32 n;
606 if(!key.write_file(*this,n)) return false; 583 if(!key.write_file(*this,n)) return false;
607 if(!n) return false; 584 if(!n) return false;
608 585
609 return true; 586 return true;
610 } 587 }
611 588
612 bool make_free_seg(seek a_first,seek a_last) 589 bool make_free_seg(seek a_first,seek a_last) {
613 // Mark unused bytes on the file : 590 // Mark unused bytes on the file :
614 // The list of free segments is in the m_ 591 // The list of free segments is in the m_free_segs list
615 // When an object is deleted from the fil 592 // When an object is deleted from the file, the freed space is added
616 // into the FREE linked list (m_free_segs 593 // into the FREE linked list (m_free_segs). The FREE list consists
617 // of a chain of consecutive free segmen 594 // of a chain of consecutive free segments on the file. At the same
618 // time, the first 4 bytes of the freed r 595 // time, the first 4 bytes of the freed record on the file
619 // are overwritten by GAPSIZE where 596 // are overwritten by GAPSIZE where
620 // GAPSIZE = -(Number of bytes occupied 597 // GAPSIZE = -(Number of bytes occupied by the record).
621 598
622 if(m_free_segs.empty()) { 599 if(m_free_segs.empty()) {
623 m_out << "tools::wroot::file::make_free_ 600 m_out << "tools::wroot::file::make_free_seg :"
624 << " free_seg list should not be e 601 << " free_seg list should not be empty here."
625 << std::endl; 602 << std::endl;
626 return false; 603 return false;
627 } 604 }
628 605
629 free_seg* newfree = add_free(m_free_segs,a 606 free_seg* newfree = add_free(m_free_segs,a_first,a_last);
630 if(!newfree) { 607 if(!newfree) {
631 m_out << "tools::wroot::file::make_free_ 608 m_out << "tools::wroot::file::make_free_seg :"
632 << " add_free failed." 609 << " add_free failed."
633 << std::endl; 610 << std::endl;
634 return false; 611 return false;
635 } 612 }
636 613
637 seek nfirst = newfree->first(); 614 seek nfirst = newfree->first();
638 seek nlast = newfree->last(); 615 seek nlast = newfree->last();
639 616
640 seek _nbytes = nlast-nfirst+1; 617 seek _nbytes = nlast-nfirst+1;
641 if(_nbytes>START_BIG_FILE()) _nbytes = STA 618 if(_nbytes>START_BIG_FILE()) _nbytes = START_BIG_FILE();
642 int nbytes = -int(_nbytes); 619 int nbytes = -int(_nbytes);
643 620
644 int nb = sizeof(int); 621 int nb = sizeof(int);
645 622
646 char psave[128]; 623 char psave[128];
647 const char* eob = psave + nb; 624 const char* eob = psave + nb;
648 char* pos = psave; 625 char* pos = psave;
649 626
650 wbuf wb(m_out,byte_swap(),eob,pos); 627 wbuf wb(m_out,byte_swap(),eob,pos);
651 if(!wb.write(nbytes)) return false; 628 if(!wb.write(nbytes)) return false;
652 629
653 if(nlast == (m_END-1)) m_END = nfirst; 630 if(nlast == (m_END-1)) m_END = nfirst;
654 if(!set_pos(nfirst)) return false; 631 if(!set_pos(nfirst)) return false;
655 if(!write_buffer(psave,nb)) return false; 632 if(!write_buffer(psave,nb)) return false;
656 if(!synchronize()) return false; 633 if(!synchronize()) return false;
657 return true; 634 return true;
658 } 635 }
659 636
660 bool write_free_segments(){ 637 bool write_free_segments(){
661 // The linked list of FREE segments (fFre 638 // The linked list of FREE segments (fFree) is written as a single data record.
662 639
663 // Delete old record if it exists : 640 // Delete old record if it exists :
664 if(m_seek_free){ 641 if(m_seek_free){
665 if(!make_free_seg(m_seek_free, m_seek_fr 642 if(!make_free_seg(m_seek_free, m_seek_free + m_nbytes_free -1)) {
666 m_out << "tools::wroot::file::write_fr 643 m_out << "tools::wroot::file::write_free_segments :"
667 << " key.write_self() failed." 644 << " key.write_self() failed."
668 << std::endl; 645 << std::endl;
669 return false; 646 return false;
670 } 647 }
671 } 648 }
672 649
673 //::printf("debug : write_free_segments : 650 //::printf("debug : write_free_segments : seg list :\n");
674 651
675 uint32 nbytes = 0; 652 uint32 nbytes = 0;
676 {tools_lforcit(free_seg*,m_free_segs,it) { 653 {tools_lforcit(free_seg*,m_free_segs,it) {
677 nbytes += (*it)->record_size(); 654 nbytes += (*it)->record_size();
678 //::printf("debug : write_free_segments 655 //::printf("debug : write_free_segments : %lu %lu\n",
679 // (*it)->first(),(*it)->last()) 656 // (*it)->first(),(*it)->last());
680 }} 657 }}
681 if(!nbytes) return true; 658 if(!nbytes) return true;
682 659
683 wroot::key key(m_out,*this, 660 wroot::key key(m_out,*this,
684 m_root_directory.seek_direc 661 m_root_directory.seek_directory(),
685 m_path,m_title,"TFile", 662 m_path,m_title,"TFile",
686 nbytes); // It does a (*thi 663 nbytes); // It does a (*this).set_END().
687 if(!key.seek_key()) return false; 664 if(!key.seek_key()) return false;
688 665
689 {char* pos = key.data_buffer(); 666 {char* pos = key.data_buffer();
690 wbuf wb(m_out,byte_swap(),key.eob(),pos); 667 wbuf wb(m_out,byte_swap(),key.eob(),pos);
691 tools_lforcit(free_seg*,m_free_segs,it) { 668 tools_lforcit(free_seg*,m_free_segs,it) {
692 if(!(*it)->fill_buffer(wb)) return false 669 if(!(*it)->fill_buffer(wb)) return false;
693 }} 670 }}
694 671
695 //key.set_cycle(1); 672 //key.set_cycle(1);
696 if(!key.write_self(*this)) { 673 if(!key.write_self(*this)) {
697 m_out << "tools::wroot::file::write_free 674 m_out << "tools::wroot::file::write_free_segments :"
698 << " key.write_self() failed." 675 << " key.write_self() failed."
699 << std::endl; 676 << std::endl;
700 return false; 677 return false;
701 } 678 }
702 679
703 m_seek_free = key.seek_key(); 680 m_seek_free = key.seek_key();
704 m_nbytes_free = key.number_of_bytes(); 681 m_nbytes_free = key.number_of_bytes();
705 if(m_verbose) { 682 if(m_verbose) {
706 m_out << "tools::wroot::file::write_free 683 m_out << "tools::wroot::file::write_free_segments :"
707 << " write key." << std::endl; 684 << " write key." << std::endl;
708 } 685 }
709 686
710 uint32 n; 687 uint32 n;
711 if(!key.write_file(*this,n)) return false; 688 if(!key.write_file(*this,n)) return false;
712 if(!n) return false; 689 if(!n) return false;
713 690
714 return true; 691 return true;
715 } 692 }
716 693
717 static bool zip(std::ostream& a_out, 694 static bool zip(std::ostream& a_out,
718 compress_func a_func, 695 compress_func a_func,
719 int a_level, 696 int a_level,
720 uint32 a_srcsize,char* a_src 697 uint32 a_srcsize,char* a_src,
721 uint32 a_tgtsize,char* a_tgt 698 uint32 a_tgtsize,char* a_tgt,
722 uint32& a_irep){ 699 uint32& a_irep){
723 700
724 // from Rio/Bits/R__zip using zlib. 701 // from Rio/Bits/R__zip using zlib.
725 702
726 const uint32 HDRSIZE = 9; 703 const uint32 HDRSIZE = 9;
727 704
728 if(a_tgtsize<HDRSIZE) { 705 if(a_tgtsize<HDRSIZE) {
729 a_out << "tools::wroot::file::zip :" << 706 a_out << "tools::wroot::directory::zip :"
730 << " target buffer too small." 707 << " target buffer too small."
731 << std::endl; 708 << std::endl;
732 a_irep = 0; 709 a_irep = 0;
733 return false; 710 return false;
734 } 711 }
735 if(a_srcsize>0xffffff) { 712 if(a_srcsize>0xffffff) {
736 a_out << "tools::wroot::file::zip :" << 713 a_out << "tools::wroot::directory::zip :"
737 << " source buffer too big." 714 << " source buffer too big."
738 << std::endl; 715 << std::endl;
739 a_irep = 0; 716 a_irep = 0;
740 return false; 717 return false;
741 } 718 }
742 719
743 uint32 out_size; 720 uint32 out_size;
744 if(!a_func(a_out,a_level, 721 if(!a_func(a_out,a_level,
745 a_srcsize,a_src, 722 a_srcsize,a_src,
746 a_tgtsize,a_tgt+HDRSIZE, 723 a_tgtsize,a_tgt+HDRSIZE,
747 out_size)) { 724 out_size)) {
748 a_out << "tools::wroot::file::zip :" << 725 a_out << "tools::wroot::directory::zip :"
749 << " zipper failed." 726 << " zipper failed."
750 << std::endl; 727 << std::endl;
751 a_irep = 0; 728 a_irep = 0;
752 return false; 729 return false;
753 } 730 }
754 <<
755 if((HDRSIZE+out_size)>a_tgtsize) { 731 if((HDRSIZE+out_size)>a_tgtsize) {
756 a_out << "tools::wroot::file::zip :" << 732 a_out << "tools::wroot::directory::zip :"
757 << " target buffer overflow." 733 << " target buffer overflow."
758 << std::endl; 734 << std::endl;
759 a_irep = 0; 735 a_irep = 0;
760 return false; 736 return false;
761 } 737 }
762 738
763 // HEADER : 739 // HEADER :
764 a_tgt[0] = 'Z'; // Signature ZLib 740 a_tgt[0] = 'Z'; // Signature ZLib
765 a_tgt[1] = 'L'; 741 a_tgt[1] = 'L';
766 a_tgt[2] = 8; //DEFLATE 742 a_tgt[2] = 8; //DEFLATE
767 743
768 a_tgt[3] = (char)(out_size & 0xff); 744 a_tgt[3] = (char)(out_size & 0xff);
769 a_tgt[4] = (char)((out_size >> 8) & 0xff); 745 a_tgt[4] = (char)((out_size >> 8) & 0xff);
770 a_tgt[5] = (char)((out_size >> 16) & 0xff) 746 a_tgt[5] = (char)((out_size >> 16) & 0xff);
771 747
772 a_tgt[6] = (char)(a_srcsize & 0xff); 748 a_tgt[6] = (char)(a_srcsize & 0xff);
773 a_tgt[7] = (char)((a_srcsize >> 8) & 0xff) 749 a_tgt[7] = (char)((a_srcsize >> 8) & 0xff);
774 a_tgt[8] = (char)((a_srcsize >> 16) & 0xff 750 a_tgt[8] = (char)((a_srcsize >> 16) & 0xff);
775 751
776 a_irep = HDRSIZE+out_size; 752 a_irep = HDRSIZE+out_size;
777 753
778 return true; 754 return true;
779 } 755 }
780 756
781 #if defined(__sun) && !defined(__linux__) && ( 757 #if defined(__sun) && !defined(__linux__) && (__SUNPRO_CC > 0x420)
782 int error_number() {return ::errno;} 758 int error_number() {return ::errno;}
783 void reset_error_number() {::errno = 0;} 759 void reset_error_number() {::errno = 0;}
784 #else 760 #else
785 int error_number() {return errno;} 761 int error_number() {return errno;}
786 void reset_error_number() {errno = 0;} 762 void reset_error_number() {errno = 0;}
787 #endif 763 #endif
788 764
789 protected: 765 protected:
790 std::ostream& m_out; 766 std::ostream& m_out;
791 std::string m_path; 767 std::string m_path;
792 bool m_verbose; 768 bool m_verbose;
793 int m_file; 769 int m_file;
794 //uint64 m_bytes_write; //Number of bytes wr 770 //uint64 m_bytes_write; //Number of bytes write in this file
795 std::string m_title; //must be before the be 771 std::string m_title; //must be before the below.
796 directory m_root_directory; 772 directory m_root_directory;
797 std::map<char,compress_func> m_zipers; 773 std::map<char,compress_func> m_zipers;
798 std::list<free_seg*> m_free_segs; //Free seg 774 std::list<free_seg*> m_free_segs; //Free segments linked list table
799 // begin of record : 775 // begin of record :
800 // "root" 776 // "root"
801 uint32 m_version; //File format versio 777 uint32 m_version; //File format version
802 seek m_BEGIN; //First used byte in 778 seek m_BEGIN; //First used byte in file
803 seek m_END; //Last used byte in 779 seek m_END; //Last used byte in file
804 seek m_seek_free; //Location on disk o 780 seek m_seek_free; //Location on disk of free segments structure
805 uint32 m_nbytes_free; //Number of bytes fo 781 uint32 m_nbytes_free; //Number of bytes for free segments structure
806 //int nfree 782 //int nfree
807 uint32 m_nbytes_name; //Number of bytes in 783 uint32 m_nbytes_name; //Number of bytes in TNamed at creation time
808 char m_units; //Number of bytes fo 784 char m_units; //Number of bytes for file pointers
809 uint32 m_compress; //(=1 file is compre 785 uint32 m_compress; //(=1 file is compressed, 0 otherwise)
810 seek m_seek_info; //Location on disk o 786 seek m_seek_info; //Location on disk of StreamerInfo record
811 uint32 m_nbytes_info; //Number of bytes fo 787 uint32 m_nbytes_info; //Number of bytes for StreamerInfo record
812 }; 788 };
813 789
814 790
815 }} 791 }}
816 792
817 #endif 793 #endif
818 794
819 //doc 795 //doc
820 // 796 //
821 // A ROOT file is a suite of consecutive data 797 // A ROOT file is a suite of consecutive data records with the following
822 // format (see also the TKey class); 798 // format (see also the TKey class);
823 // TKey --------------------- 799 // TKey ---------------------
824 // byte 1->4 Nbytes = Length of compr 800 // byte 1->4 Nbytes = Length of compressed object (in bytes)
825 // 5->6 Version = TKey version id 801 // 5->6 Version = TKey version identifier
826 // 7->10 ObjLen = Length of uncom 802 // 7->10 ObjLen = Length of uncompressed object
827 // 11->14 Datime = Date and time w 803 // 11->14 Datime = Date and time when object was written to file
828 // 15->16 KeyLen = Length of the k 804 // 15->16 KeyLen = Length of the key structure (in bytes)
829 // 17->18 Cycle = Cycle of key 805 // 17->18 Cycle = Cycle of key
830 // 19->22 SeekKey = Pointer to reco 806 // 19->22 SeekKey = Pointer to record itself (consistency check)
831 // 23->26 SeekPdir = Pointer to dire 807 // 23->26 SeekPdir = Pointer to directory header
832 // 27->27 lname = Number of bytes 808 // 27->27 lname = Number of bytes in the class name
833 // 28->.. ClassName = Object Class Na 809 // 28->.. ClassName = Object Class Name
834 // ..->.. lname = Number of bytes 810 // ..->.. lname = Number of bytes in the object name
835 // ..->.. Name = lName bytes wit 811 // ..->.. Name = lName bytes with the name of the object
836 // ..->.. lTitle = Number of bytes 812 // ..->.. lTitle = Number of bytes in the object title
837 // ..->.. Title = Title of the ob 813 // ..->.. Title = Title of the object
838 // -----> DATA = Data bytes asso 814 // -----> DATA = Data bytes associated to the object
839 // 815 //
840 // The first data record starts at byte fBEGI 816 // The first data record starts at byte fBEGIN (currently set to kBegin)
841 // Bytes 1->kBegin contain the file descripti 817 // Bytes 1->kBegin contain the file description:
842 // byte 1->4 "root" = Root file i 818 // byte 1->4 "root" = Root file identifier
843 // 5->8 fVersion = File format 819 // 5->8 fVersion = File format version
844 // 9->12 fBEGIN = Pointer to 820 // 9->12 fBEGIN = Pointer to first data record
845 // 13->16 fEND = Pointer to 821 // 13->16 fEND = Pointer to first free word at the EOF
846 // 17->20 fSeekFree = Pointer to 822 // 17->20 fSeekFree = Pointer to FREE data record
847 // 21->24 fNbytesFree = Number of b 823 // 21->24 fNbytesFree = Number of bytes in FREE data record
848 // 25->28 nfree = Number of f 824 // 25->28 nfree = Number of free data records
849 // 29->32 fNbytesName = Number of b 825 // 29->32 fNbytesName = Number of bytes in TNamed at creation time
850 // 33->33 fUnits = Number of b 826 // 33->33 fUnits = Number of bytes for file pointers
851 // 34->37 fCompress = Zip compres 827 // 34->37 fCompress = Zip compression level
852 // 828 //