Mercurial > hg > orthanc-stone
annotate Resources/Orthanc/Core/SystemToolbox.cpp @ 23:a4a1e4033403
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 23 Nov 2016 15:27:57 +0100 |
| parents | b01d46e5a2b3 |
| children | 9ee7e2f5f1a3 |
| rev | line source |
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| 15 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * | |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU General Public License as | |
| 8 * published by the Free Software Foundation, either version 3 of the | |
| 9 * License, or (at your option) any later version. | |
| 10 * | |
| 11 * In addition, as a special exception, the copyright holders of this | |
| 12 * program give permission to link the code of its release with the | |
| 13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 14 * that use the same license as the "OpenSSL" library), and distribute | |
| 15 * the linked executables. You must obey the GNU General Public License | |
| 16 * in all respects for all of the code used other than "OpenSSL". If you | |
| 17 * modify file(s) with this exception, you may extend this exception to | |
| 18 * your version of the file(s), but you are not obligated to do so. If | |
| 19 * you do not wish to do so, delete this exception statement from your | |
| 20 * version. If you delete this exception statement from all source files | |
| 21 * in the program, then also delete it here. | |
| 22 * | |
| 23 * This program is distributed in the hope that it will be useful, but | |
| 24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 26 * General Public License for more details. | |
| 27 * | |
| 28 * You should have received a copy of the GNU General Public License | |
| 29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 30 **/ | |
| 31 | |
| 32 | |
| 33 #include "PrecompiledHeaders.h" | |
| 34 #include "SystemToolbox.h" | |
| 35 | |
| 36 | |
| 37 #if BOOST_HAS_DATE_TIME == 1 | |
| 23 | 38 # include <boost/date_time/posix_time/posix_time.hpp> |
| 15 | 39 #endif |
| 40 | |
| 41 | |
| 42 #if defined(_WIN32) | |
| 23 | 43 # include <windows.h> |
| 44 # include <process.h> // For "_spawnvp()" and "_getpid()" | |
| 15 | 45 #else |
| 23 | 46 # include <unistd.h> // For "execvp()" |
| 47 # include <sys/wait.h> // For "waitpid()" | |
| 15 | 48 #endif |
| 49 | |
| 23 | 50 |
| 15 | 51 #if defined(__APPLE__) && defined(__MACH__) |
| 23 | 52 # include <mach-o/dyld.h> /* _NSGetExecutablePath */ |
| 53 # include <limits.h> /* PATH_MAX */ | |
| 15 | 54 #endif |
| 55 | |
| 23 | 56 |
| 15 | 57 #if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
| 23 | 58 # include <limits.h> /* PATH_MAX */ |
| 59 # include <signal.h> | |
| 60 # include <unistd.h> | |
| 15 | 61 #endif |
| 62 | |
| 63 | |
|
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64 // Inclusions for UUID |
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65 // http://stackoverflow.com/a/1626302 |
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66 |
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67 extern "C" |
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68 { |
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69 #ifdef WIN32 |
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70 # include <rpc.h> |
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71 #else |
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72 # include <uuid/uuid.h> |
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73 #endif |
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74 } |
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75 |
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76 |
| 15 | 77 #include "Logging.h" |
| 78 #include "OrthancException.h" | |
| 79 #include "Toolbox.h" | |
| 80 | |
| 81 #include <boost/filesystem.hpp> | |
| 82 #include <boost/filesystem/fstream.hpp> | |
| 83 | |
| 84 | |
| 85 namespace Orthanc | |
| 86 { | |
| 87 static bool finish_; | |
| 88 static ServerBarrierEvent barrierEvent_; | |
| 89 | |
| 90 #if defined(_WIN32) | |
| 91 static BOOL WINAPI ConsoleControlHandler(DWORD dwCtrlType) | |
| 92 { | |
| 93 // http://msdn.microsoft.com/en-us/library/ms683242(v=vs.85).aspx | |
| 94 finish_ = true; | |
| 95 return true; | |
| 96 } | |
| 97 #else | |
| 98 static void SignalHandler(int signal) | |
| 99 { | |
| 100 if (signal == SIGHUP) | |
| 101 { | |
| 102 barrierEvent_ = ServerBarrierEvent_Reload; | |
| 103 } | |
| 104 | |
| 105 finish_ = true; | |
| 106 } | |
| 107 #endif | |
| 108 | |
| 109 | |
| 110 static ServerBarrierEvent ServerBarrierInternal(const bool* stopFlag) | |
| 111 { | |
| 112 #if defined(_WIN32) | |
| 113 SetConsoleCtrlHandler(ConsoleControlHandler, true); | |
| 114 #else | |
| 115 signal(SIGINT, SignalHandler); | |
| 116 signal(SIGQUIT, SignalHandler); | |
| 117 signal(SIGTERM, SignalHandler); | |
| 118 signal(SIGHUP, SignalHandler); | |
| 119 #endif | |
| 120 | |
| 121 // Active loop that awakens every 100ms | |
| 122 finish_ = false; | |
| 123 barrierEvent_ = ServerBarrierEvent_Stop; | |
| 124 while (!(*stopFlag || finish_)) | |
| 125 { | |
| 126 Toolbox::USleep(100 * 1000); | |
| 127 } | |
| 128 | |
| 129 #if defined(_WIN32) | |
| 130 SetConsoleCtrlHandler(ConsoleControlHandler, false); | |
| 131 #else | |
| 132 signal(SIGINT, NULL); | |
| 133 signal(SIGQUIT, NULL); | |
| 134 signal(SIGTERM, NULL); | |
| 135 signal(SIGHUP, NULL); | |
| 136 #endif | |
| 137 | |
| 138 return barrierEvent_; | |
| 139 } | |
| 140 | |
| 141 | |
| 142 ServerBarrierEvent SystemToolbox::ServerBarrier(const bool& stopFlag) | |
| 143 { | |
| 144 return ServerBarrierInternal(&stopFlag); | |
| 145 } | |
| 146 | |
| 147 | |
| 148 ServerBarrierEvent SystemToolbox::ServerBarrier() | |
| 149 { | |
| 150 const bool stopFlag = false; | |
| 151 return ServerBarrierInternal(&stopFlag); | |
| 152 } | |
| 153 | |
| 154 | |
| 155 static std::streamsize GetStreamSize(std::istream& f) | |
| 156 { | |
| 157 // http://www.cplusplus.com/reference/iostream/istream/tellg/ | |
| 158 f.seekg(0, std::ios::end); | |
| 159 std::streamsize size = f.tellg(); | |
| 160 f.seekg(0, std::ios::beg); | |
| 161 | |
| 162 return size; | |
| 163 } | |
| 164 | |
| 165 | |
| 166 void SystemToolbox::ReadFile(std::string& content, | |
| 167 const std::string& path) | |
| 168 { | |
| 169 if (!IsRegularFile(path)) | |
| 170 { | |
| 171 LOG(ERROR) << std::string("The path does not point to a regular file: ") << path; | |
| 172 throw OrthancException(ErrorCode_RegularFileExpected); | |
| 173 } | |
| 174 | |
| 175 boost::filesystem::ifstream f; | |
| 176 f.open(path, std::ifstream::in | std::ifstream::binary); | |
| 177 if (!f.good()) | |
| 178 { | |
| 179 throw OrthancException(ErrorCode_InexistentFile); | |
| 180 } | |
| 181 | |
| 182 std::streamsize size = GetStreamSize(f); | |
| 183 content.resize(size); | |
| 184 if (size != 0) | |
| 185 { | |
| 186 f.read(reinterpret_cast<char*>(&content[0]), size); | |
| 187 } | |
| 188 | |
| 189 f.close(); | |
| 190 } | |
| 191 | |
| 192 | |
| 193 bool SystemToolbox::ReadHeader(std::string& header, | |
| 194 const std::string& path, | |
| 195 size_t headerSize) | |
| 196 { | |
| 197 if (!IsRegularFile(path)) | |
| 198 { | |
| 199 LOG(ERROR) << std::string("The path does not point to a regular file: ") << path; | |
| 200 throw OrthancException(ErrorCode_RegularFileExpected); | |
| 201 } | |
| 202 | |
| 203 boost::filesystem::ifstream f; | |
| 204 f.open(path, std::ifstream::in | std::ifstream::binary); | |
| 205 if (!f.good()) | |
| 206 { | |
| 207 throw OrthancException(ErrorCode_InexistentFile); | |
| 208 } | |
| 209 | |
| 210 bool full = true; | |
| 211 | |
| 212 { | |
| 213 std::streamsize size = GetStreamSize(f); | |
| 214 if (size <= 0) | |
| 215 { | |
| 216 headerSize = 0; | |
| 217 full = false; | |
| 218 } | |
| 219 else if (static_cast<size_t>(size) < headerSize) | |
| 220 { | |
| 221 headerSize = size; // Truncate to the size of the file | |
| 222 full = false; | |
| 223 } | |
| 224 } | |
| 225 | |
| 226 header.resize(headerSize); | |
| 227 if (headerSize != 0) | |
| 228 { | |
| 229 f.read(reinterpret_cast<char*>(&header[0]), headerSize); | |
| 230 } | |
| 231 | |
| 232 f.close(); | |
| 233 | |
| 234 return full; | |
| 235 } | |
| 236 | |
| 237 | |
| 238 void SystemToolbox::WriteFile(const void* content, | |
| 239 size_t size, | |
| 240 const std::string& path) | |
| 241 { | |
| 242 boost::filesystem::ofstream f; | |
| 243 f.open(path, std::ofstream::out | std::ofstream::binary); | |
| 244 if (!f.good()) | |
| 245 { | |
| 246 throw OrthancException(ErrorCode_CannotWriteFile); | |
| 247 } | |
| 248 | |
| 249 if (size != 0) | |
| 250 { | |
| 251 f.write(reinterpret_cast<const char*>(content), size); | |
| 252 | |
| 253 if (!f.good()) | |
| 254 { | |
| 255 f.close(); | |
| 256 throw OrthancException(ErrorCode_FileStorageCannotWrite); | |
| 257 } | |
| 258 } | |
| 259 | |
| 260 f.close(); | |
| 261 } | |
| 262 | |
| 263 | |
| 264 void SystemToolbox::WriteFile(const std::string& content, | |
| 265 const std::string& path) | |
| 266 { | |
| 267 WriteFile(content.size() > 0 ? content.c_str() : NULL, | |
| 268 content.size(), path); | |
| 269 } | |
| 270 | |
| 271 | |
| 272 void SystemToolbox::RemoveFile(const std::string& path) | |
| 273 { | |
| 274 if (boost::filesystem::exists(path)) | |
| 275 { | |
| 276 if (IsRegularFile(path)) | |
| 277 { | |
| 278 boost::filesystem::remove(path); | |
| 279 } | |
| 280 else | |
| 281 { | |
| 282 throw OrthancException(ErrorCode_RegularFileExpected); | |
| 283 } | |
| 284 } | |
| 285 } | |
| 286 | |
| 287 | |
| 288 uint64_t SystemToolbox::GetFileSize(const std::string& path) | |
| 289 { | |
| 290 try | |
| 291 { | |
| 292 return static_cast<uint64_t>(boost::filesystem::file_size(path)); | |
| 293 } | |
| 294 catch (boost::filesystem::filesystem_error&) | |
| 295 { | |
| 296 throw OrthancException(ErrorCode_InexistentFile); | |
| 297 } | |
| 298 } | |
| 299 | |
| 300 | |
| 301 void SystemToolbox::MakeDirectory(const std::string& path) | |
| 302 { | |
| 303 if (boost::filesystem::exists(path)) | |
| 304 { | |
| 305 if (!boost::filesystem::is_directory(path)) | |
| 306 { | |
| 307 throw OrthancException(ErrorCode_DirectoryOverFile); | |
| 308 } | |
| 309 } | |
| 310 else | |
| 311 { | |
| 312 if (!boost::filesystem::create_directories(path)) | |
| 313 { | |
| 314 throw OrthancException(ErrorCode_MakeDirectory); | |
| 315 } | |
| 316 } | |
| 317 } | |
| 318 | |
| 319 | |
| 320 bool SystemToolbox::IsExistingFile(const std::string& path) | |
| 321 { | |
| 322 return boost::filesystem::exists(path); | |
| 323 } | |
| 324 | |
| 325 | |
| 326 #if defined(_WIN32) | |
| 327 static std::string GetPathToExecutableInternal() | |
| 328 { | |
| 329 // Yes, this is ugly, but there is no simple way to get the | |
| 330 // required buffer size, so we use a big constant | |
| 331 std::vector<char> buffer(32768); | |
| 332 /*int bytes =*/ GetModuleFileNameA(NULL, &buffer[0], static_cast<DWORD>(buffer.size() - 1)); | |
| 333 return std::string(&buffer[0]); | |
| 334 } | |
| 335 | |
| 336 #elif defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) | |
| 337 static std::string GetPathToExecutableInternal() | |
| 338 { | |
| 339 std::vector<char> buffer(PATH_MAX + 1); | |
| 340 ssize_t bytes = readlink("/proc/self/exe", &buffer[0], buffer.size() - 1); | |
| 341 if (bytes == 0) | |
| 342 { | |
| 343 throw OrthancException(ErrorCode_PathToExecutable); | |
| 344 } | |
| 345 | |
| 346 return std::string(&buffer[0]); | |
| 347 } | |
| 348 | |
| 349 #elif defined(__APPLE__) && defined(__MACH__) | |
| 350 static std::string GetPathToExecutableInternal() | |
| 351 { | |
| 352 char pathbuf[PATH_MAX + 1]; | |
| 353 unsigned int bufsize = static_cast<int>(sizeof(pathbuf)); | |
| 354 | |
| 355 _NSGetExecutablePath( pathbuf, &bufsize); | |
| 356 | |
| 357 return std::string(pathbuf); | |
| 358 } | |
| 359 | |
| 360 #else | |
| 361 #error Support your platform here | |
| 362 #endif | |
| 363 | |
| 364 | |
| 365 std::string SystemToolbox::GetPathToExecutable() | |
| 366 { | |
| 367 boost::filesystem::path p(GetPathToExecutableInternal()); | |
| 368 return boost::filesystem::absolute(p).string(); | |
| 369 } | |
| 370 | |
| 371 | |
| 372 std::string SystemToolbox::GetDirectoryOfExecutable() | |
| 373 { | |
| 374 boost::filesystem::path p(GetPathToExecutableInternal()); | |
| 375 return boost::filesystem::absolute(p.parent_path()).string(); | |
| 376 } | |
| 377 | |
| 378 | |
| 379 void SystemToolbox::ExecuteSystemCommand(const std::string& command, | |
| 380 const std::vector<std::string>& arguments) | |
| 381 { | |
| 382 // Convert the arguments as a C array | |
| 383 std::vector<char*> args(arguments.size() + 2); | |
| 384 | |
| 385 args.front() = const_cast<char*>(command.c_str()); | |
| 386 | |
| 387 for (size_t i = 0; i < arguments.size(); i++) | |
| 388 { | |
| 389 args[i + 1] = const_cast<char*>(arguments[i].c_str()); | |
| 390 } | |
| 391 | |
| 392 args.back() = NULL; | |
| 393 | |
| 394 int status; | |
| 395 | |
| 396 #if defined(_WIN32) | |
| 397 // http://msdn.microsoft.com/en-us/library/275khfab.aspx | |
| 398 status = static_cast<int>(_spawnvp(_P_OVERLAY, command.c_str(), &args[0])); | |
| 399 | |
| 400 #else | |
| 401 int pid = fork(); | |
| 402 | |
| 403 if (pid == -1) | |
| 404 { | |
| 405 // Error in fork() | |
| 406 #if ORTHANC_ENABLE_LOGGING == 1 | |
| 407 LOG(ERROR) << "Cannot fork a child process"; | |
| 408 #endif | |
| 409 | |
| 410 throw OrthancException(ErrorCode_SystemCommand); | |
| 411 } | |
| 412 else if (pid == 0) | |
| 413 { | |
| 414 // Execute the system command in the child process | |
| 415 execvp(command.c_str(), &args[0]); | |
| 416 | |
| 417 // We should never get here | |
| 418 _exit(1); | |
| 419 } | |
| 420 else | |
| 421 { | |
| 422 // Wait for the system command to exit | |
| 423 waitpid(pid, &status, 0); | |
| 424 } | |
| 425 #endif | |
| 426 | |
| 427 if (status != 0) | |
| 428 { | |
| 429 #if ORTHANC_ENABLE_LOGGING == 1 | |
| 430 LOG(ERROR) << "System command failed with status code " << status; | |
| 431 #endif | |
| 432 | |
| 433 throw OrthancException(ErrorCode_SystemCommand); | |
| 434 } | |
| 435 } | |
| 436 | |
| 437 | |
| 438 int SystemToolbox::GetProcessId() | |
| 439 { | |
| 440 #if defined(_WIN32) | |
| 441 return static_cast<int>(_getpid()); | |
| 442 #else | |
| 443 return static_cast<int>(getpid()); | |
| 444 #endif | |
| 445 } | |
| 446 | |
| 447 | |
| 448 bool SystemToolbox::IsRegularFile(const std::string& path) | |
| 449 { | |
| 450 namespace fs = boost::filesystem; | |
| 451 | |
| 452 try | |
| 453 { | |
| 454 if (fs::exists(path)) | |
| 455 { | |
| 456 fs::file_status status = fs::status(path); | |
| 457 return (status.type() == boost::filesystem::regular_file || | |
| 458 status.type() == boost::filesystem::reparse_file); // Fix BitBucket issue #11 | |
| 459 } | |
| 460 } | |
| 461 catch (fs::filesystem_error&) | |
| 462 { | |
| 463 } | |
| 464 | |
| 465 return false; | |
| 466 } | |
| 467 | |
| 468 | |
| 469 FILE* SystemToolbox::OpenFile(const std::string& path, | |
| 470 FileMode mode) | |
| 471 { | |
| 472 #if defined(_WIN32) | |
| 473 // TODO Deal with special characters by converting to the current locale | |
| 474 #endif | |
| 475 | |
| 476 const char* m; | |
| 477 switch (mode) | |
| 478 { | |
| 479 case FileMode_ReadBinary: | |
| 480 m = "rb"; | |
| 481 break; | |
| 482 | |
| 483 case FileMode_WriteBinary: | |
| 484 m = "wb"; | |
| 485 break; | |
| 486 | |
| 487 default: | |
| 488 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
| 489 } | |
| 490 | |
| 491 return fopen(path.c_str(), m); | |
| 492 } | |
| 493 | |
| 494 | |
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495 std::string SystemToolbox::GenerateUuid() |
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496 { |
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497 #ifdef WIN32 |
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498 UUID uuid; |
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499 UuidCreate ( &uuid ); |
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500 |
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501 unsigned char * str; |
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502 UuidToStringA ( &uuid, &str ); |
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503 |
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504 std::string s( ( char* ) str ); |
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505 |
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506 RpcStringFreeA ( &str ); |
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507 #else |
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508 uuid_t uuid; |
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509 uuid_generate_random ( uuid ); |
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510 char s[37]; |
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511 uuid_unparse ( uuid, s ); |
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512 #endif |
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513 return s; |
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b01d46e5a2b3
support for sandboxed environments
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
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514 } |
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b01d46e5a2b3
support for sandboxed environments
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
|
515 |
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b01d46e5a2b3
support for sandboxed environments
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
|
516 |
| 15 | 517 #if BOOST_HAS_DATE_TIME == 1 |
| 518 std::string SystemToolbox::GetNowIsoString() | |
| 519 { | |
| 520 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); | |
| 521 return boost::posix_time::to_iso_string(now); | |
| 522 } | |
| 523 | |
| 524 void SystemToolbox::GetNowDicom(std::string& date, | |
| 525 std::string& time) | |
| 526 { | |
| 527 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); | |
| 528 tm tm = boost::posix_time::to_tm(now); | |
| 529 | |
| 530 char s[32]; | |
| 531 sprintf(s, "%04d%02d%02d", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday); | |
| 532 date.assign(s); | |
| 533 | |
| 534 // TODO milliseconds | |
| 535 sprintf(s, "%02d%02d%02d.%06d", tm.tm_hour, tm.tm_min, tm.tm_sec, 0); | |
| 536 time.assign(s); | |
| 537 } | |
| 538 #endif | |
| 539 } |