[2015] | 1 | /* ========================================================================
|
---|
| 2 | * (C) 2000 Vienna University of Technology
|
---|
| 3 | * ========================================================================
|
---|
| 4 | * PROJECT: Urban Viz
|
---|
| 5 | * ========================================================================*/
|
---|
| 6 | /** several error checking/log facilities.
|
---|
| 7 | *
|
---|
| 8 | * for char-strings, 'String' is typedef'd for convenience
|
---|
| 9 | * This library can be used with old style iostreams
|
---|
| 10 | * (define \c OLDSTREAM for that)
|
---|
| 11 | *
|
---|
| 12 | * $Header: /usr/local/cvsyare/cvsyamp/src/yareutils/merror.cpp,v 1.1 2002/11/14 15:22:58 wimmer Exp $
|
---|
| 13 | * @author Michael Wimmer
|
---|
| 14 | * @file */
|
---|
| 15 | /* ========================================================================*/
|
---|
| 16 |
|
---|
| 17 | #include "merror.h"
|
---|
| 18 |
|
---|
| 19 | // The following is to allow this to be compiled with new and old style
|
---|
| 20 | // iostreams. Special care has to be taken because in ms iostreams,
|
---|
| 21 | // strstream has a different name and behaves differently!
|
---|
| 22 | #ifndef OLDSTREAM
|
---|
| 23 | # include <fstream>
|
---|
| 24 | # include <strstream>
|
---|
| 25 | # define ERRSTD std
|
---|
| 26 | #else
|
---|
| 27 | # include <fstream.h>
|
---|
| 28 | # if defined(_MSC_VER) && !defined(__SGI_STL)
|
---|
| 29 | # define MS_STRSTREAM
|
---|
| 30 | # include <strstrea.h>
|
---|
| 31 | # else
|
---|
| 32 | # include <strstream.h>
|
---|
| 33 | # endif
|
---|
| 34 | # define ERRSTD
|
---|
| 35 | #endif
|
---|
| 36 |
|
---|
| 37 |
|
---|
| 38 |
|
---|
| 39 |
|
---|
| 40 | // ---------------------------------------------------------------------------
|
---|
| 41 | // PrivateErrHandler class definition
|
---|
| 42 | // ---------------------------------------------------------------------------
|
---|
| 43 |
|
---|
| 44 |
|
---|
| 45 | // a few functions encapsulated in a class so initialization is easier
|
---|
| 46 | class PrivateErrHandler
|
---|
| 47 | {
|
---|
| 48 | public:
|
---|
| 49 | /// constructor
|
---|
| 50 | PrivateErrHandler();
|
---|
| 51 |
|
---|
| 52 | /// will be forwarded to outside macros
|
---|
| 53 | inline ERRSTD::ostream &GetCurrentLogStream();
|
---|
| 54 |
|
---|
| 55 | /// output the current logstream
|
---|
| 56 | inline void PrintLogStream(bool overrideconsole);
|
---|
| 57 |
|
---|
| 58 | /// init the logstream (especially the logfile)
|
---|
| 59 | void InitLogStream(const char *filename, bool _logtoconsole);
|
---|
| 60 |
|
---|
| 61 | /// who handles the console stream
|
---|
| 62 | void SetConsoleStreamHandler(LogStreamToConsoleFunc handler);
|
---|
| 63 |
|
---|
| 64 | /// console only on/off
|
---|
| 65 | bool SetLogStream(bool _logtoconsole);
|
---|
| 66 |
|
---|
| 67 | /// whether to log to file or not
|
---|
| 68 | void SetLogToFile(bool yesno);
|
---|
| 69 |
|
---|
| 70 | private:
|
---|
| 71 | // the logfile
|
---|
| 72 | ERRSTD::ofstream log_ofstream;
|
---|
| 73 |
|
---|
| 74 | // the logstring (i.e., the primary logging target)
|
---|
| 75 | ERRSTD::strstream log_ostrstream;
|
---|
| 76 |
|
---|
| 77 | // log only to console?
|
---|
| 78 | bool logtoconsole;
|
---|
| 79 |
|
---|
| 80 | // log to file also?
|
---|
| 81 | bool logtofile;
|
---|
| 82 |
|
---|
| 83 | LogStreamToConsoleFunc CurrentLogStreamToConsoleFunc;
|
---|
| 84 |
|
---|
| 85 | /// just goes to cout
|
---|
| 86 | inline static void DefaultLogStreamToConsoleFunc(
|
---|
| 87 | const char *consolestring);
|
---|
| 88 |
|
---|
| 89 | // shoudn't be used
|
---|
| 90 | PrivateErrHandler(const PrivateErrHandler &) {}
|
---|
| 91 | PrivateErrHandler &operator=(const PrivateErrHandler &) { return *this; }
|
---|
| 92 | };
|
---|
| 93 |
|
---|
| 94 | // ---------------------------------------------------------------------------
|
---|
| 95 | // PrivateErrHandler class implementation
|
---|
| 96 | // ---------------------------------------------------------------------------
|
---|
| 97 |
|
---|
| 98 |
|
---|
| 99 | PrivateErrHandler::PrivateErrHandler()
|
---|
| 100 | :CurrentLogStreamToConsoleFunc(DefaultLogStreamToConsoleFunc),
|
---|
| 101 | logtoconsole(false), logtofile(true)
|
---|
| 102 | {
|
---|
| 103 | }
|
---|
| 104 |
|
---|
| 105 |
|
---|
| 106 | void PrivateErrHandler::SetLogToFile(bool yesno)
|
---|
| 107 | {
|
---|
| 108 | logtofile = yesno;
|
---|
| 109 | }
|
---|
| 110 |
|
---|
| 111 |
|
---|
| 112 | inline ERRSTD::ostream &PrivateErrHandler::GetCurrentLogStream()
|
---|
| 113 | {
|
---|
| 114 | return log_ostrstream;
|
---|
| 115 | }
|
---|
| 116 |
|
---|
| 117 | inline void PrivateErrHandler::PrintLogStream(bool overrideconsole)
|
---|
| 118 | {
|
---|
| 119 | // Note: this is only used with the old strstream, not with ostringstream
|
---|
| 120 | log_ostrstream << ERRSTD::ends;
|
---|
| 121 |
|
---|
| 122 | if (log_ofstream && (logtofile || !logtoconsole))
|
---|
| 123 | log_ofstream << log_ostrstream.str() << ERRSTD::flush;
|
---|
| 124 |
|
---|
| 125 | if (logtoconsole || overrideconsole || !log_ofstream)
|
---|
| 126 | CurrentLogStreamToConsoleFunc(log_ostrstream.str());
|
---|
| 127 |
|
---|
| 128 | // Note: this was used with ostringstream, but not compatible
|
---|
| 129 | // with old iostreams
|
---|
| 130 | //log_ostringstream.str("");
|
---|
| 131 |
|
---|
| 132 | log_ostrstream.rdbuf()->freeze(false);
|
---|
| 133 | log_ostrstream.seekp(0);
|
---|
| 134 | }
|
---|
| 135 |
|
---|
| 136 |
|
---|
| 137 | void PrivateErrHandler::InitLogStream(const char *filename,
|
---|
| 138 | bool _logtoconsole)
|
---|
| 139 | {
|
---|
| 140 | // Note: only works on new iostreams!
|
---|
| 141 | #ifdef MS_STRSTREAM
|
---|
| 142 | log_ofstream.rdbuf()->setbuf(NULL, 0);
|
---|
| 143 | #else
|
---|
| 144 | log_ofstream.rdbuf()->pubsetbuf(NULL, 0);
|
---|
| 145 | #endif
|
---|
| 146 |
|
---|
| 147 | // SGI bug: ios::in assumed!
|
---|
| 148 | log_ofstream.open(filename,ERRSTD::ios::out|ERRSTD::ios::trunc);
|
---|
| 149 |
|
---|
| 150 | if (!log_ofstream)
|
---|
| 151 | {
|
---|
| 152 | EOUT("Could not open logfile!");
|
---|
| 153 | }
|
---|
| 154 |
|
---|
| 155 | SetLogStream(_logtoconsole);
|
---|
| 156 |
|
---|
| 157 | OUT0("Logfile opened\n");
|
---|
| 158 | }
|
---|
| 159 |
|
---|
| 160 | void PrivateErrHandler::SetConsoleStreamHandler(
|
---|
| 161 | LogStreamToConsoleFunc handler)
|
---|
| 162 | {
|
---|
| 163 | if (handler == NULL)
|
---|
| 164 | CurrentLogStreamToConsoleFunc = DefaultLogStreamToConsoleFunc;
|
---|
| 165 | else
|
---|
| 166 | CurrentLogStreamToConsoleFunc = handler;
|
---|
| 167 | }
|
---|
| 168 |
|
---|
| 169 | bool PrivateErrHandler::SetLogStream(bool _logtoconsole)
|
---|
| 170 | {
|
---|
| 171 | bool x = logtoconsole;
|
---|
| 172 | logtoconsole = _logtoconsole;
|
---|
| 173 | return x;
|
---|
| 174 | }
|
---|
| 175 |
|
---|
| 176 | void PrivateErrHandler::DefaultLogStreamToConsoleFunc(
|
---|
| 177 | const char *consolestring)
|
---|
| 178 | {
|
---|
| 179 | ERRSTD::cout << consolestring;
|
---|
| 180 | }
|
---|
| 181 |
|
---|
| 182 |
|
---|
| 183 | // ---------------------------------------------------------------------------
|
---|
| 184 | // Private C-access functions
|
---|
| 185 | // ---------------------------------------------------------------------------
|
---|
| 186 |
|
---|
| 187 | static PrivateErrHandler *theErrHandler = NULL;
|
---|
| 188 |
|
---|
| 189 | inline static void _ErrInitDefault()
|
---|
| 190 | {
|
---|
| 191 | static bool initialized = false;
|
---|
| 192 | if (!initialized)
|
---|
| 193 | {
|
---|
| 194 | theErrHandler = new PrivateErrHandler;
|
---|
| 195 | initialized = true;
|
---|
| 196 | }
|
---|
| 197 | }
|
---|
| 198 |
|
---|
| 199 | // ---------------------------------------------------------------------------
|
---|
| 200 | // Public interface - exposed to macros
|
---|
| 201 | // ---------------------------------------------------------------------------
|
---|
| 202 |
|
---|
| 203 | // logstream used by macros - this is necessary so that logstreams don't
|
---|
| 204 | // give an error if used in global constructors (which are constructed
|
---|
| 205 | // prior to the logfile)
|
---|
| 206 | ERRSTD::ostream &_GetLogStream()
|
---|
| 207 | {
|
---|
| 208 | _ErrInitDefault();
|
---|
| 209 |
|
---|
| 210 | return theErrHandler->GetCurrentLogStream();
|
---|
| 211 | }
|
---|
| 212 |
|
---|
| 213 | ERRSTD::ostream &_LogStreamDone(ERRSTD::ostream &os, bool overrideconsole)
|
---|
| 214 | {
|
---|
| 215 | _ErrInitDefault();
|
---|
| 216 | theErrHandler->PrintLogStream(overrideconsole);
|
---|
| 217 |
|
---|
| 218 | return os;
|
---|
| 219 | }
|
---|
| 220 |
|
---|
| 221 |
|
---|
| 222 | // ---------------------------------------------------------------------------
|
---|
| 223 | // Public interface - exposed directly to application
|
---|
| 224 | // ---------------------------------------------------------------------------
|
---|
| 225 |
|
---|
| 226 | void SetConsoleStreamHandler(LogStreamToConsoleFunc handler)
|
---|
| 227 | {
|
---|
| 228 | _ErrInitDefault();
|
---|
| 229 |
|
---|
| 230 | theErrHandler->SetConsoleStreamHandler(handler);
|
---|
| 231 | }
|
---|
| 232 |
|
---|
| 233 | void InitLogStream(const char *filename, bool logtofile)
|
---|
| 234 | {
|
---|
| 235 | _ErrInitDefault();
|
---|
| 236 |
|
---|
| 237 | theErrHandler->InitLogStream(filename, !logtofile);
|
---|
| 238 | }
|
---|
| 239 |
|
---|
| 240 | bool SetLogStream(bool logtofile)
|
---|
| 241 | {
|
---|
| 242 | _ErrInitDefault();
|
---|
| 243 |
|
---|
| 244 | return !theErrHandler->SetLogStream(!logtofile);
|
---|
| 245 | }
|
---|
| 246 |
|
---|
| 247 | void SetLogToFile(bool yesno)
|
---|
| 248 | {
|
---|
| 249 | _ErrInitDefault();
|
---|
| 250 |
|
---|
| 251 | theErrHandler->SetLogToFile(yesno);
|
---|
| 252 | }
|
---|
| 253 |
|
---|
| 254 |
|
---|
| 255 | // ---------------------------------------------------------------------------
|
---|
| 256 | // Win32-stuff
|
---|
| 257 | // ---------------------------------------------------------------------------
|
---|
| 258 |
|
---|
| 259 | #ifdef WIN32
|
---|
| 260 |
|
---|
| 261 | #define WIN32_LEAN_AND_MEAN
|
---|
| 262 | #define NOMINMAX
|
---|
| 263 | #include <windows.h> // for MessageBox and stuff
|
---|
| 264 |
|
---|
| 265 | void Msg(const char *msg, const char *title)
|
---|
| 266 | {
|
---|
| 267 | // MessageBox(NULL, msg, title, MB_OK);
|
---|
| 268 | }
|
---|
| 269 |
|
---|
| 270 | /// gets WIN32 API error message (used by CHKMS-macros)
|
---|
| 271 | char *GetErrorStringMS(DWORD errorValue)
|
---|
| 272 | {
|
---|
| 273 | LPVOID lpMsgBuf;
|
---|
| 274 |
|
---|
| 275 | FormatMessage(
|
---|
| 276 | FORMAT_MESSAGE_ALLOCATE_BUFFER |
|
---|
| 277 | FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_MAX_WIDTH_MASK,
|
---|
| 278 | NULL,
|
---|
| 279 | errorValue,
|
---|
| 280 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
|
---|
| 281 | (LPTSTR) &lpMsgBuf,
|
---|
| 282 | 0,
|
---|
| 283 | NULL
|
---|
| 284 | );
|
---|
| 285 |
|
---|
| 286 | //String message;
|
---|
| 287 | char *message;
|
---|
| 288 | if (lpMsgBuf)
|
---|
| 289 | {
|
---|
| 290 | message = (char *)lpMsgBuf;
|
---|
| 291 |
|
---|
| 292 | // Free the buffer.
|
---|
| 293 | LocalFree( lpMsgBuf );
|
---|
| 294 | }
|
---|
| 295 | else
|
---|
| 296 | {
|
---|
| 297 | message = "No error message returned";
|
---|
| 298 | }
|
---|
| 299 |
|
---|
| 300 | return message;
|
---|
| 301 | }
|
---|
| 302 |
|
---|
| 303 | #else
|
---|
| 304 | // nop functions for non-Win32 systems
|
---|
| 305 | void Msg(const char *msg, const char *title) {}
|
---|
| 306 | char *GetErrorStringMS(unsigned long errorValue) { return ""; }
|
---|
| 307 | #endif
|
---|