Changes in libcfa/src/fstream.cfa [c8371b5:7e7a076]
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libcfa/src/fstream.cfa
rc8371b5 r7e7a076 10 10 // Created On : Wed May 27 17:56:53 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Sun Oct 10 11:23:05202113 // Update Count : 51212 // Last Modified On : Thu Jul 29 22:34:10 2021 13 // Update Count : 454 14 14 // 15 15 … … 28 28 #define IO_MSG "I/O error: " 29 29 30 // private 31 void ?{}( ofstream & os, void * file ) with( os ) { 32 file$ = file;33 sepDefault$ = true;34 sepOnOff$ = false;35 nlOnOff$ = true;36 prt$ = false;37 sawNL$ = false;30 void ?{}( ofstream & os, void * file ) { 31 os.file$ = file; 32 os.sepDefault$ = true; 33 os.sepOnOff$ = false; 34 os.nlOnOff$ = true; 35 os.prt$ = false; 36 os.sawNL$ = false; 37 os.acquired$ = false; 38 38 sepSetCur$( os, sepGet( os ) ); 39 39 sepSet( os, " " ); … … 41 41 } // ?{} 42 42 43 inline bool sepPrt$( ofstream & os ) { setNL$( os, false ); return os.sepOnOff$; } 44 inline void sepReset$( ofstream & os ) { os.sepOnOff$ = os.sepDefault$; } 45 inline void sepReset$( ofstream & os, bool reset ) { os.sepDefault$ = reset; os.sepOnOff$ = os.sepDefault$; } 46 inline const char * sepGetCur$( ofstream & os ) { return os.sepCur$; } 47 inline void sepSetCur$( ofstream & os, const char sepCur[] ) { os.sepCur$ = sepCur; } 48 inline bool getNL$( ofstream & os ) { return os.sawNL$; } 49 inline void setNL$( ofstream & os, bool state ) { os.sawNL$ = state; } 50 inline bool getANL$( ofstream & os ) { return os.nlOnOff$; } 51 inline bool getPrt$( ofstream & os ) { return os.prt$; } 52 inline void setPrt$( ofstream & os, bool state ) { os.prt$ = state; } 53 54 inline void lock( ofstream & os ) with( os ) { lock( os.lock$ ); } 55 inline void unlock( ofstream & os ) { unlock( os.lock$ ); } 43 // private 44 bool sepPrt$( ofstream & os ) { setNL$( os, false ); return os.sepOnOff$; } 45 void sepReset$( ofstream & os ) { os.sepOnOff$ = os.sepDefault$; } 46 void sepReset$( ofstream & os, bool reset ) { os.sepDefault$ = reset; os.sepOnOff$ = os.sepDefault$; } 47 const char * sepGetCur$( ofstream & os ) { return os.sepCur$; } 48 void sepSetCur$( ofstream & os, const char sepCur[] ) { os.sepCur$ = sepCur; } 49 bool getNL$( ofstream & os ) { return os.sawNL$; } 50 void setNL$( ofstream & os, bool state ) { os.sawNL$ = state; } 51 bool getANL$( ofstream & os ) { return os.nlOnOff$; } 52 bool getPrt$( ofstream & os ) { return os.prt$; } 53 void setPrt$( ofstream & os, bool state ) { os.prt$ = state; } 56 54 57 55 // public 58 56 void ?{}( ofstream & os ) { os.file$ = 0p; } 59 void ?{}( ofstream & os, const char name[], const char mode[] ) { open( os, name, mode ); } 60 void ?{}( ofstream & os, const char name[] ) { open( os, name, "w" ); } 61 void ^?{}( ofstream & os ) { close( os ); } 57 58 void ?{}( ofstream & os, const char name[], const char mode[] ) { 59 open( os, name, mode ); 60 } // ?{} 61 62 void ?{}( ofstream & os, const char name[] ) { 63 open( os, name, "w" ); 64 } // ?{} 65 66 void ^?{}( ofstream & os ) { 67 close( os ); 68 } // ^?{} 62 69 63 70 void sepOn( ofstream & os ) { os.sepOnOff$ = ! getNL$( os ); } … … 100 107 if ( &os == &exit ) exit( EXIT_FAILURE ); 101 108 if ( &os == &abort ) abort(); 109 if ( os.acquired$ ) { os.acquired$ = false; release( os ); } 102 110 } // ends 103 111 104 bool fail( ofstream & os ) { return os.file$ == 0 || ferror( (FILE *)(os.file$) ); } 105 void clear( ofstream & os ) { clearerr( (FILE *)(os.file$) ); } 106 int flush( ofstream & os ) { return fflush( (FILE *)(os.file$) ); } 112 bool fail( ofstream & os ) { 113 return os.file$ == 0 || ferror( (FILE *)(os.file$) ); 114 } // fail 115 116 void clear( ofstream & os ) { 117 clearerr( (FILE *)(os.file$) ); 118 } // clear 119 120 int flush( ofstream & os ) { 121 return fflush( (FILE *)(os.file$) ); 122 } // flush 107 123 108 124 void open( ofstream & os, const char name[], const char mode[] ) { 109 FILE * file; 110 for ( cnt; 10 ) { 111 errno = 0; 112 file = fopen( name, mode ); 113 if ( file != 0p || errno != EINTR ) break; // timer interrupt ? 114 if ( cnt == 9 ) abort( "ofstream open EINTR spinning exceeded" ); 115 } // for 125 FILE * file = fopen( name, mode ); 126 // #ifdef __CFA_DEBUG__ 116 127 if ( file == 0p ) { 117 128 throw (Open_Failure){ os }; 118 129 // abort | IO_MSG "open output file \"" | name | "\"" | nl | strerror( errno ); 119 130 } // if 120 (os){ file }; // initialize 131 // #endif // __CFA_DEBUG__ 132 (os){ file }; 121 133 } // open 122 134 123 void open( ofstream & os, const char name[] ) { open( os, name, "w" ); } 124 125 void close( ofstream & os ) with( os ) { 126 if ( (FILE *)(file$) == 0p ) return; 127 if ( (FILE *)(file$) == (FILE *)stdout || (FILE *)(file$) == (FILE *)stderr ) return; 128 129 int ret; 130 for ( cnt; 10 ) { 131 errno = 0; 132 ret = fclose( (FILE *)(file$) ); 133 if ( ret != EOF || errno != EINTR ) break; // timer interrupt ? 134 if ( cnt == 9 ) abort( "ofstream open EINTR spinning exceeded" ); 135 } // for 136 if ( ret == EOF ) { 135 void open( ofstream & os, const char name[] ) { 136 open( os, name, "w" ); 137 } // open 138 139 void close( ofstream & os ) { 140 if ( (FILE *)(os.file$) == 0p ) return; 141 if ( (FILE *)(os.file$) == (FILE *)stdout || (FILE *)(os.file$) == (FILE *)stderr ) return; 142 143 if ( fclose( (FILE *)(os.file$) ) == EOF ) { 137 144 throw (Close_Failure){ os }; 138 145 // abort | IO_MSG "close output" | nl | strerror( errno ); 139 146 } // if 140 file$ = 0p; // safety after close147 os.file$ = 0p; 141 148 } // close 142 149 … … 157 164 va_list args; 158 165 va_start( args, format ); 159 160 int len; 161 for ( cnt; 10 ) { 162 errno = 0; 163 len = vfprintf( (FILE *)(os.file$), format, args ); 164 if ( len != EOF || errno != EINTR ) break; // timer interrupt ? 165 if ( cnt == 9 ) abort( "ofstream fmt EINTR spinning exceeded" ); 166 } // for 166 int len = vfprintf( (FILE *)(os.file$), format, args ); 167 167 if ( len == EOF ) { 168 168 if ( ferror( (FILE *)(os.file$) ) ) { … … 177 177 } // fmt 178 178 179 inline void acquire( ofstream & os ) { 180 lock( os.lock$ ); 181 if ( ! os.acquired$ ) os.acquired$ = true; 182 else unlock( os.lock$ ); 183 } // acquire 184 185 inline void release( ofstream & os ) { 186 unlock( os.lock$ ); 187 } // release 188 189 inline void lock( ofstream & os ) { acquire( os ); } 190 inline void unlock( ofstream & os ) { release( os ); } 191 192 void ?{}( osacquire & acq, ofstream & os ) { &acq.os = &os; lock( os.lock$ ); } 193 void ^?{}( osacquire & acq ) { release( acq.os ); } 194 179 195 static ofstream soutFile = { (FILE *)stdout }; 180 196 ofstream & sout = soutFile, & stdout = soutFile; … … 194 210 flush( os ); 195 211 return os; 212 // (ofstream &)(os | '\n'); 213 // setPrt$( os, false ); // turn off 214 // setNL$( os, true ); 215 // flush( os ); 216 // return sepOff( os ); // prepare for next line 196 217 } // nl 197 218 … … 201 222 202 223 // private 203 void ?{}( ifstream & is, void * file ) with( is ) { 204 file$ = file; 205 nlOnOff$ = false; 206 } // ?{} 207 208 bool getANL$( ifstream & os ) { return os.nlOnOff$; } 209 210 inline void lock( ifstream & os ) with( os ) { lock( os.lock$ ); } 211 inline void unlock( ifstream & os ) { unlock( os.lock$ ); } 224 void ?{}( ifstream & is, void * file ) { 225 is.file$ = file; 226 is.nlOnOff$ = false; 227 is.acquired$ = false; 228 } // ?{} 212 229 213 230 // public 214 231 void ?{}( ifstream & is ) { is.file$ = 0p; } 215 void ?{}( ifstream & is, const char name[], const char mode[] ) { open( is, name, mode ); } 216 void ?{}( ifstream & is, const char name[] ) { open( is, name, "r" ); } 217 void ^?{}( ifstream & is ) { close( is ); } 218 219 bool fail( ifstream & is ) { return is.file$ == 0p || ferror( (FILE *)(is.file$) ); } 220 void clear( ifstream & is ) { clearerr( (FILE *)(is.file$) ); } 232 233 void ?{}( ifstream & is, const char name[], const char mode[] ) { 234 open( is, name, mode ); 235 } // ?{} 236 237 void ?{}( ifstream & is, const char name[] ) { 238 open( is, name, "r" ); 239 } // ?{} 240 241 void ^?{}( ifstream & is ) { 242 close( is ); 243 } // ^?{} 221 244 222 245 void nlOn( ifstream & os ) { os.nlOnOff$ = true; } 223 246 void nlOff( ifstream & os ) { os.nlOnOff$ = false; } 224 225 void ends( ifstream & is ) {} 226 227 bool eof( ifstream & is ) { return feof( (FILE *)(is.file$) ) != 0; } 247 bool getANL( ifstream & os ) { return os.nlOnOff$; } 248 249 bool fail( ifstream & is ) { 250 return is.file$ == 0p || ferror( (FILE *)(is.file$) ); 251 } // fail 252 253 void clear( ifstream & is ) { 254 clearerr( (FILE *)(is.file$) ); 255 } // clear 256 257 void ends( ifstream & is ) { 258 if ( is.acquired$ ) { is.acquired$ = false; release( is ); } 259 } // ends 260 261 bool eof( ifstream & is ) { 262 return feof( (FILE *)(is.file$) ); 263 } // eof 228 264 229 265 void open( ifstream & is, const char name[], const char mode[] ) { 230 FILE * file; 231 for ( cnt; 10 ) { 232 errno = 0; 233 file = fopen( name, mode ); 234 if ( file != 0p || errno != EINTR ) break; // timer interrupt ? 235 if ( cnt == 9 ) abort( "ifstream open EINTR spinning exceeded" ); 236 } // for 266 FILE * file = fopen( name, mode ); 267 // #ifdef __CFA_DEBUG__ 237 268 if ( file == 0p ) { 238 269 throw (Open_Failure){ is }; 239 270 // abort | IO_MSG "open input file \"" | name | "\"" | nl | strerror( errno ); 240 271 } // if 241 (is){ file }; // initialize 272 // #endif // __CFA_DEBUG__ 273 is.file$ = file; 242 274 } // open 243 275 244 void open( ifstream & is, const char name[] ) { open( is, name, "r" ); } 245 246 void close( ifstream & is ) with( is ) { 247 if ( (FILE *)(file$) == 0p ) return; 248 if ( (FILE *)(file$) == (FILE *)stdin ) return; 249 250 int ret; 251 for ( cnt; 10 ) { 252 errno = 0; 253 ret = fclose( (FILE *)(file$) ); 254 if ( ret != EOF || errno != EINTR ) break; // timer interrupt ? 255 if ( cnt == 9 ) abort( "ifstream close EINTR spinning exceeded" ); 256 } // for 257 if ( ret == EOF ) { 276 void open( ifstream & is, const char name[] ) { 277 open( is, name, "r" ); 278 } // open 279 280 void close( ifstream & is ) { 281 if ( (FILE *)(is.file$) == 0p ) return; 282 if ( (FILE *)(is.file$) == (FILE *)stdin ) return; 283 284 if ( fclose( (FILE *)(is.file$) ) == EOF ) { 258 285 throw (Close_Failure){ is }; 259 286 // abort | IO_MSG "close input" | nl | strerror( errno ); 260 287 } // if 261 file$ = 0p; // safety after close288 is.file$ = 0p; 262 289 } // close 263 290 … … 288 315 int fmt( ifstream & is, const char format[], ... ) { 289 316 va_list args; 317 290 318 va_start( args, format ); 291 292 int len; 293 for () { // no check for EINTR limit waiting for keyboard input 294 errno = 0; 295 len = vfscanf( (FILE *)(is.file$), format, args ); 296 if ( len != EOF || errno != EINTR ) break; // timer interrupt ? 297 } // for 319 int len = vfscanf( (FILE *)(is.file$), format, args ); 298 320 if ( len == EOF ) { 299 321 if ( ferror( (FILE *)(is.file$) ) ) { … … 305 327 } // fmt 306 328 329 inline void acquire( ifstream & is ) { 330 lock( is.lock$ ); 331 if ( ! is.acquired$ ) is.acquired$ = true; 332 else unlock( is.lock$ ); 333 } // acquire 334 335 inline void release( ifstream & is ) { 336 unlock( is.lock$ ); 337 } // release 338 339 void ?{}( isacquire & acq, ifstream & is ) { &acq.is = &is; lock( is.lock$ ); } 340 void ^?{}( isacquire & acq ) { release( acq.is ); } 341 307 342 static ifstream sinFile = { (FILE *)stdin }; 308 343 ifstream & sin = sinFile, & stdin = sinFile; … … 315 350 316 351 // exception I/O constructors 317 void ?{}( Open_Failure & ex, ofstream & ostream ) with(ex) {318 virtual_table = &Open_Failure_vt;319 ostream = &ostream;320 t ag = 1;321 } // ?{} 322 323 void ?{}( Open_Failure & ex, ifstream & istream ) with(ex) {324 virtual_table = &Open_Failure_vt;325 istream = &istream;326 t ag = 0;352 void ?{}( Open_Failure & this, ofstream & ostream ) { 353 this.virtual_table = &Open_Failure_vt; 354 this.ostream = &ostream; 355 this.tag = 1; 356 } // ?{} 357 358 void ?{}( Open_Failure & this, ifstream & istream ) { 359 this.virtual_table = &Open_Failure_vt; 360 this.istream = &istream; 361 this.tag = 0; 327 362 } // ?{} 328 363 … … 331 366 332 367 // exception I/O constructors 333 void ?{}( Close_Failure & ex, ofstream & ostream ) with(ex) {334 virtual_table = &Close_Failure_vt;335 ostream = &ostream;336 t ag = 1;337 } // ?{} 338 339 void ?{}( Close_Failure & ex, ifstream & istream ) with(ex) {340 virtual_table = &Close_Failure_vt;341 istream = &istream;342 t ag = 0;368 void ?{}( Close_Failure & this, ofstream & ostream ) { 369 this.virtual_table = &Close_Failure_vt; 370 this.ostream = &ostream; 371 this.tag = 1; 372 } // ?{} 373 374 void ?{}( Close_Failure & this, ifstream & istream ) { 375 this.virtual_table = &Close_Failure_vt; 376 this.istream = &istream; 377 this.tag = 0; 343 378 } // ?{} 344 379 … … 347 382 348 383 // exception I/O constructors 349 void ?{}( Write_Failure & ex, ofstream & ostream ) with(ex) {350 virtual_table = &Write_Failure_vt;351 ostream = &ostream;352 t ag = 1;353 } // ?{} 354 355 void ?{}( Write_Failure & ex, ifstream & istream ) with(ex) {356 virtual_table = &Write_Failure_vt;357 istream = &istream;358 t ag = 0;384 void ?{}( Write_Failure & this, ofstream & ostream ) { 385 this.virtual_table = &Write_Failure_vt; 386 this.ostream = &ostream; 387 this.tag = 1; 388 } // ?{} 389 390 void ?{}( Write_Failure & this, ifstream & istream ) { 391 this.virtual_table = &Write_Failure_vt; 392 this.istream = &istream; 393 this.tag = 0; 359 394 } // ?{} 360 395 … … 363 398 364 399 // exception I/O constructors 365 void ?{}( Read_Failure & ex, ofstream & ostream ) with(ex) {366 virtual_table = &Read_Failure_vt;367 ostream = &ostream;368 t ag = 1;369 } // ?{} 370 371 void ?{}( Read_Failure & ex, ifstream & istream ) with(ex) {372 virtual_table = &Read_Failure_vt;373 istream = &istream;374 t ag = 0;400 void ?{}( Read_Failure & this, ofstream & ostream ) { 401 this.virtual_table = &Read_Failure_vt; 402 this.ostream = &ostream; 403 this.tag = 1; 404 } // ?{} 405 406 void ?{}( Read_Failure & this, ifstream & istream ) { 407 this.virtual_table = &Read_Failure_vt; 408 this.istream = &istream; 409 this.tag = 0; 375 410 } // ?{} 376 411
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