| 1 | /* MPW-Unix compatibility library. |
| 2 | Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of the libiberty library. |
| 5 | Libiberty is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Library General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2 of the License, or (at your option) any later version. |
| 9 | |
| 10 | Libiberty is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Library General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Library General Public |
| 16 | License along with libiberty; see the file COPYING.LIB. If |
| 17 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 18 | Boston, MA 02111-1307, USA. */ |
| 19 | |
| 20 | /* This should only be compiled and linked under MPW. */ |
| 21 | |
| 22 | #include "mpw.h" |
| 23 | |
| 24 | #include <stdlib.h> |
| 25 | |
| 26 | #ifndef USE_MW_HEADERS |
| 27 | #include <sys/time.h> |
| 28 | #include <sys/resource.h> |
| 29 | #endif |
| 30 | |
| 31 | #include <Types.h> |
| 32 | #include <Files.h> |
| 33 | |
| 34 | #include <Timer.h> |
| 35 | |
| 36 | /* Initialize to 0 at first, then set to errno_max() later. */ |
| 37 | |
| 38 | int sys_nerr = 0; |
| 39 | |
| 40 | /* Debug flag for pathname hacking. Set this to one and rebuild. */ |
| 41 | |
| 42 | int DebugPI = -1; |
| 43 | |
| 44 | void |
| 45 | mpwify_filename(char *unixname, char *macname) |
| 46 | { |
| 47 | int i, j; |
| 48 | |
| 49 | /* (should truncate 255 chars from end of name, not beginning) */ |
| 50 | if (strlen (unixname) > 255) |
| 51 | { |
| 52 | fprintf (stderr, "Pathname \"%s\" is too long for Macs, truncating\n", |
| 53 | unixname); |
| 54 | } |
| 55 | j = 0; |
| 56 | /* If you're going to end up with one or more colons in the middle of a |
| 57 | path after an all-Unix relative path is translated, you must add a |
| 58 | colon on the front, so that the first component is not thought to be |
| 59 | a disk name. */ |
| 60 | if (unixname[0] != '/' && ! strchr (unixname, ':') && strchr (unixname, '/')) |
| 61 | { |
| 62 | macname[j++] = ':'; |
| 63 | } |
| 64 | for (i = 0; unixname[i] != '\0' && i < 255; ++i) |
| 65 | { |
| 66 | if (i == 0 && unixname[i] == '/') |
| 67 | { |
| 68 | if (strncmp (unixname, "/tmp/", 5) == 0) |
| 69 | { |
| 70 | /* A temporary name, make a more Mac-flavored tmpname. */ |
| 71 | /* A better choice would be {Boot}Trash:foo, but |
| 72 | that would require being able to identify the |
| 73 | boot disk's and trashcan's name. Another option |
| 74 | would be to have an env var, so user can point it |
| 75 | at a ramdisk. */ |
| 76 | macname[j++] = ':'; |
| 77 | macname[j++] = 't'; |
| 78 | macname[j++] = 'm'; |
| 79 | macname[j++] = 'p'; |
| 80 | macname[j++] = '_'; |
| 81 | i += 4; |
| 82 | } |
| 83 | else |
| 84 | { |
| 85 | /* Don't copy the leading slash. */ |
| 86 | } |
| 87 | } |
| 88 | else if (unixname[i] == ':' && unixname[i+1] == '/') |
| 89 | { |
| 90 | macname[j++] = ':'; |
| 91 | i += 1; |
| 92 | } |
| 93 | else if (unixname[i] == '.' && unixname[i+1] == '/') |
| 94 | { |
| 95 | macname[j++] = ':'; |
| 96 | i += 1; |
| 97 | } |
| 98 | else if (unixname[i] == '.' && unixname[i+1] == '.' && unixname[i+2] == '/') |
| 99 | { |
| 100 | macname[j++] = ':'; |
| 101 | macname[j++] = ':'; |
| 102 | i += 2; |
| 103 | } |
| 104 | else if (unixname[i] == '/') |
| 105 | { |
| 106 | macname[j++] = ':'; |
| 107 | } |
| 108 | else |
| 109 | { |
| 110 | macname[j++] = unixname[i]; |
| 111 | } |
| 112 | } |
| 113 | macname[j] = '\0'; |
| 114 | /* Allow for getting the debug flag from an env var; quite useful. */ |
| 115 | if (DebugPI < 0) |
| 116 | DebugPI = (*(getenv ("DEBUG_PATHNAMES")) == '1' ? 1 : 0); |
| 117 | if (DebugPI) |
| 118 | { |
| 119 | fprintf (stderr, "# Made \"%s\"\n", unixname); |
| 120 | fprintf (stderr, "# into \"%s\"\n", macname); |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | /* MPW-flavored basename finder. */ |
| 125 | |
| 126 | char * |
| 127 | mpw_basename (name) |
| 128 | char *name; |
| 129 | { |
| 130 | char *base = name; |
| 131 | |
| 132 | while (*name) |
| 133 | { |
| 134 | if (*name++ == ':') |
| 135 | { |
| 136 | base = name; |
| 137 | } |
| 138 | } |
| 139 | return base; |
| 140 | } |
| 141 | |
| 142 | /* Mixed MPW/Unix basename finder. This can be led astray by |
| 143 | filenames with slashes in them and come up with a basename that |
| 144 | either corresponds to no file or (worse) to some other file, so |
| 145 | should only be tried if other methods of finding a file via a |
| 146 | basename have failed. */ |
| 147 | |
| 148 | char * |
| 149 | mpw_mixed_basename (name) |
| 150 | char *name; |
| 151 | { |
| 152 | char *base = name; |
| 153 | |
| 154 | while (*name) |
| 155 | { |
| 156 | if (*name == '/' || *name == ':') |
| 157 | { |
| 158 | base = name + 1; |
| 159 | } |
| 160 | ++name; |
| 161 | } |
| 162 | return base; |
| 163 | } |
| 164 | |
| 165 | /* This function is fopen() modified to create files that are type TEXT |
| 166 | or 'BIN ', and always of type 'MPS '. */ |
| 167 | |
| 168 | FILE * |
| 169 | mpw_fopen (char *name, char *mode) |
| 170 | { |
| 171 | #undef fopen |
| 172 | int errnum; |
| 173 | FILE *fp; |
| 174 | char tmpname[256]; |
| 175 | |
| 176 | mpwify_filename (name, tmpname); |
| 177 | PROGRESS (1); |
| 178 | fp = fopen (tmpname, mode); |
| 179 | errnum = errno; |
| 180 | |
| 181 | /* If writing, need to set type and creator usefully. */ |
| 182 | if (strchr (mode, 'w')) |
| 183 | { |
| 184 | char *pname = (char *) malloc (strlen (tmpname) + 2); |
| 185 | OSErr e; |
| 186 | struct FInfo fi; |
| 187 | |
| 188 | pname[0] = strlen (tmpname); |
| 189 | strcpy (pname+1, tmpname); |
| 190 | |
| 191 | e = GetFInfo ((ConstStr255Param) pname, 0, &fi); |
| 192 | /* should do spiffier error handling */ |
| 193 | if (e != 0) |
| 194 | fprintf(stderr, "GetFInfo returns %d\n", e); |
| 195 | if (strchr (mode, 'b')) |
| 196 | { |
| 197 | fi.fdType = (OSType) 'BIN '; |
| 198 | } |
| 199 | else |
| 200 | { |
| 201 | fi.fdType = (OSType) 'TEXT'; |
| 202 | } |
| 203 | fi.fdCreator = (OSType) 'MPS '; |
| 204 | e = SetFInfo ((ConstStr255Param) pname, 0, &fi); |
| 205 | if (e != 0) |
| 206 | fprintf(stderr, "SetFInfo returns %d\n", e); |
| 207 | free (pname); |
| 208 | } |
| 209 | if (fp == NULL) |
| 210 | errno = errnum; |
| 211 | return fp; |
| 212 | } |
| 213 | |
| 214 | /* This is a version of fseek() modified to fill the file with zeros |
| 215 | if seeking past the end of it. */ |
| 216 | |
| 217 | #define ZEROBLKSIZE 4096 |
| 218 | |
| 219 | char zeros[ZEROBLKSIZE]; |
| 220 | |
| 221 | int |
| 222 | mpw_fseek (FILE *fp, int offset, int whence) |
| 223 | { |
| 224 | #undef fseek |
| 225 | int cursize, numleft; |
| 226 | |
| 227 | PROGRESS (1); |
| 228 | if (whence == SEEK_SET) |
| 229 | { |
| 230 | fseek (fp, 0, SEEK_END); |
| 231 | cursize = ftell (fp); |
| 232 | if (offset > cursize) |
| 233 | { |
| 234 | numleft = offset - cursize; |
| 235 | while (numleft > ZEROBLKSIZE) |
| 236 | { |
| 237 | /* This might fail, should check for that. */ |
| 238 | PROGRESS (1); |
| 239 | fwrite (zeros, 1, ZEROBLKSIZE, fp); |
| 240 | numleft -= ZEROBLKSIZE; |
| 241 | } |
| 242 | PROGRESS (1); |
| 243 | fwrite (zeros, 1, numleft, fp); |
| 244 | fflush (fp); |
| 245 | } |
| 246 | } |
| 247 | return fseek (fp, offset, whence); |
| 248 | } |
| 249 | |
| 250 | int |
| 251 | mpw_fread (char *ptr, int size, int nitems, FILE *stream) |
| 252 | { |
| 253 | #undef fread |
| 254 | int rslt; |
| 255 | |
| 256 | PROGRESS (1); |
| 257 | rslt = fread (ptr, size, nitems, stream); |
| 258 | PROGRESS (1); |
| 259 | return rslt; |
| 260 | } |
| 261 | |
| 262 | int |
| 263 | mpw_fwrite (char *ptr, int size, int nitems, FILE *stream) |
| 264 | { |
| 265 | #undef fwrite |
| 266 | int rslt; |
| 267 | |
| 268 | PROGRESS (1); |
| 269 | rslt = fwrite (ptr, size, nitems, stream); |
| 270 | PROGRESS (1); |
| 271 | return rslt; |
| 272 | } |
| 273 | |
| 274 | int |
| 275 | link () |
| 276 | { |
| 277 | fprintf (stderr, "link not available!\n"); |
| 278 | mpw_abort (); |
| 279 | } |
| 280 | |
| 281 | int |
| 282 | fork () |
| 283 | { |
| 284 | fprintf (stderr, "fork not available!\n"); |
| 285 | mpw_abort (); |
| 286 | } |
| 287 | |
| 288 | int |
| 289 | vfork () |
| 290 | { |
| 291 | fprintf (stderr, "vfork not available!\n"); |
| 292 | mpw_abort (); |
| 293 | return (-1); |
| 294 | } |
| 295 | |
| 296 | int |
| 297 | pipe (int *fd) |
| 298 | { |
| 299 | fprintf (stderr, "pipe not available!\n"); |
| 300 | mpw_abort (); |
| 301 | return (-1); |
| 302 | } |
| 303 | |
| 304 | #ifndef USE_MW_HEADERS |
| 305 | int |
| 306 | execvp (char *file, char **argv) |
| 307 | { |
| 308 | fprintf (stderr, "execvp not available!\n"); |
| 309 | mpw_abort (); |
| 310 | return (-1); |
| 311 | } |
| 312 | |
| 313 | int |
| 314 | execv (char *path, char **argv) |
| 315 | { |
| 316 | fprintf (stderr, "execv not available!\n"); |
| 317 | mpw_abort (); |
| 318 | return (-1); |
| 319 | } |
| 320 | #endif |
| 321 | |
| 322 | int |
| 323 | kill (int pid, int sig) |
| 324 | { |
| 325 | fprintf (stderr, "kill not available!\n"); |
| 326 | mpw_abort (); |
| 327 | return (-1); |
| 328 | } |
| 329 | |
| 330 | int |
| 331 | wait (int *status) |
| 332 | { |
| 333 | *status = 0; |
| 334 | return 0; |
| 335 | } |
| 336 | |
| 337 | #ifndef USE_MW_HEADERS |
| 338 | int |
| 339 | sleep (int seconds) |
| 340 | { |
| 341 | unsigned long start_time, now; |
| 342 | |
| 343 | time (&start_time); |
| 344 | |
| 345 | while (1) |
| 346 | { |
| 347 | PROGRESS (1); |
| 348 | time (&now); |
| 349 | if (now > start_time + seconds) |
| 350 | return 0; |
| 351 | } |
| 352 | } |
| 353 | #endif |
| 354 | |
| 355 | void |
| 356 | putenv (char *str) |
| 357 | { |
| 358 | /* The GCC driver calls this to do things for collect2, but we |
| 359 | don't care about collect2. */ |
| 360 | } |
| 361 | |
| 362 | int |
| 363 | chmod (char *path, int mode) |
| 364 | { |
| 365 | /* Pretend it was all OK. */ |
| 366 | return 0; |
| 367 | } |
| 368 | |
| 369 | #ifndef USE_MW_HEADERS |
| 370 | int |
| 371 | getuid () |
| 372 | { |
| 373 | /* One value is as good as another... */ |
| 374 | return 0; |
| 375 | } |
| 376 | |
| 377 | int |
| 378 | getgid () |
| 379 | { |
| 380 | /* One value is as good as another... */ |
| 381 | return 0; |
| 382 | } |
| 383 | #endif |
| 384 | |
| 385 | /* Instead of coredumping, which is not a normal Mac facility, we |
| 386 | drop into Macsbug. If we then "g" from Macsbug, the program will |
| 387 | exit cleanly. */ |
| 388 | |
| 389 | void |
| 390 | mpw_abort () |
| 391 | { |
| 392 | /* Make sure no output still buffered up, then zap into MacsBug. */ |
| 393 | fflush(stdout); |
| 394 | fflush(stderr); |
| 395 | printf("## Abort! ##\n"); |
| 396 | #ifdef MPW_SADE |
| 397 | SysError(8005); |
| 398 | #else |
| 399 | Debugger(); |
| 400 | #endif |
| 401 | /* "g" in MacsBug will then cause a regular error exit. */ |
| 402 | exit (1); |
| 403 | } |
| 404 | |
| 405 | /* Imitation getrusage based on the ANSI clock() function. */ |
| 406 | |
| 407 | int |
| 408 | getrusage (int who, struct rusage *rusage) |
| 409 | { |
| 410 | int clk = clock (); |
| 411 | |
| 412 | #if 0 |
| 413 | rusage->ru_utime.tv_sec = clk / CLOCKS_PER_SEC; |
| 414 | rusage->ru_utime.tv_usec = ((clk * 1000) / CLOCKS_PER_SEC) * 1000; |
| 415 | rusage->ru_stime.tv_sec = 0; |
| 416 | rusage->ru_stime.tv_usec = 0; |
| 417 | #endif |
| 418 | } |
| 419 | |
| 420 | int |
| 421 | sbrk () |
| 422 | { |
| 423 | return 0; |
| 424 | } |
| 425 | |
| 426 | #ifndef USE_MW_HEADERS |
| 427 | int |
| 428 | isatty (int fd) |
| 429 | { |
| 430 | return 0; |
| 431 | } |
| 432 | |
| 433 | /* This is inherited from Timothy Murray's Posix library. */ |
| 434 | |
| 435 | #include "utime.h" |
| 436 | |
| 437 | int |
| 438 | utime (char *filename, struct utimbuf *times) |
| 439 | { |
| 440 | CInfoPBRec cipbr; |
| 441 | HFileInfo *fpb = (HFileInfo *) &cipbr; |
| 442 | DirInfo *dpb = (DirInfo *) &cipbr; |
| 443 | unsigned char pname[256]; |
| 444 | short err; |
| 445 | |
| 446 | strcpy ((char *) pname, filename); |
| 447 | c2pstr (pname); |
| 448 | |
| 449 | dpb->ioDrDirID = 0L; |
| 450 | fpb->ioNamePtr = pname; |
| 451 | fpb->ioVRefNum = 0; |
| 452 | fpb->ioFDirIndex = 0; |
| 453 | fpb->ioFVersNum = 0; |
| 454 | err = PBGetCatInfo (&cipbr, 0); |
| 455 | if (err != noErr) { |
| 456 | errno = ENOENT; |
| 457 | return -1; |
| 458 | } |
| 459 | dpb->ioDrDirID = 0L; |
| 460 | fpb->ioFlMdDat = times->modtime; |
| 461 | fpb->ioFlCrDat = times->actime; |
| 462 | err = PBSetCatInfo (&cipbr, 0); |
| 463 | if (err != noErr) { |
| 464 | errno = EACCES; |
| 465 | return -1; |
| 466 | } |
| 467 | return 0; |
| 468 | } |
| 469 | |
| 470 | int |
| 471 | mkdir (char *path, int mode) |
| 472 | { |
| 473 | errno = ENOSYS; |
| 474 | return -1; |
| 475 | } |
| 476 | |
| 477 | int |
| 478 | rmdir () |
| 479 | { |
| 480 | errno = ENOSYS; |
| 481 | return -1; |
| 482 | } |
| 483 | #endif |
| 484 | |
| 485 | chown () |
| 486 | { |
| 487 | errno = ENOSYS; |
| 488 | return -1; |
| 489 | } |
| 490 | |
| 491 | char *myenviron[] = {NULL}; |
| 492 | |
| 493 | char **environ = myenviron; |
| 494 | |
| 495 | #ifndef USE_MW_HEADERS |
| 496 | |
| 497 | /* Minimal 'stat' emulation: tells directories from files and |
| 498 | gives length and mtime. |
| 499 | |
| 500 | Derived from code written by Guido van Rossum, CWI, Amsterdam |
| 501 | and placed by him in the public domain. */ |
| 502 | |
| 503 | extern int __uid, __gid; |
| 504 | |
| 505 | int __uid = 0; |
| 506 | int __gid = 0; |
| 507 | |
| 508 | /* Bits in ioFlAttrib: */ |
| 509 | #define LOCKBIT (1<<0) /* File locked */ |
| 510 | #define DIRBIT (1<<4) /* It's a directory */ |
| 511 | |
| 512 | /* Macified "stat" in which filename is given relative to a directory, |
| 513 | specified by long DirID. */ |
| 514 | |
| 515 | static int |
| 516 | _stat (char *name, long dirid, struct stat *buf) |
| 517 | { |
| 518 | CInfoPBRec cipbr; |
| 519 | HFileInfo *fpb = (HFileInfo*) &cipbr; |
| 520 | DirInfo *dpb = (DirInfo*) &cipbr; |
| 521 | Str255 pname; |
| 522 | short err; |
| 523 | |
| 524 | /* Make a temp copy of the name and pascalize. */ |
| 525 | strcpy ((char *) pname, name); |
| 526 | c2pstr (pname); |
| 527 | |
| 528 | cipbr.dirInfo.ioDrDirID = dirid; |
| 529 | cipbr.hFileInfo.ioNamePtr = pname; |
| 530 | cipbr.hFileInfo.ioVRefNum = 0; |
| 531 | cipbr.hFileInfo.ioFDirIndex = 0; |
| 532 | cipbr.hFileInfo.ioFVersNum = 0; |
| 533 | err = PBGetCatInfo (&cipbr, 0); |
| 534 | if (err != noErr) |
| 535 | { |
| 536 | errno = ENOENT; |
| 537 | return -1; |
| 538 | } |
| 539 | /* Mac files are readable if they can be accessed at all. */ |
| 540 | buf->st_mode = 0444; |
| 541 | /* Mark unlocked files as writeable. */ |
| 542 | if (!(fpb->ioFlAttrib & LOCKBIT)) |
| 543 | buf->st_mode |= 0222; |
| 544 | if (fpb->ioFlAttrib & DIRBIT) |
| 545 | { |
| 546 | /* Mark directories as "executable". */ |
| 547 | buf->st_mode |= 0111 | S_IFDIR; |
| 548 | buf->st_size = dpb->ioDrNmFls; |
| 549 | buf->st_rsize = 0; |
| 550 | } |
| 551 | else |
| 552 | { |
| 553 | buf->st_mode |= S_IFREG; |
| 554 | /* Mark apps as "executable". */ |
| 555 | if (fpb->ioFlFndrInfo.fdType == 'APPL') |
| 556 | buf->st_mode |= 0111; |
| 557 | /* Fill in the sizes of data and resource forks. */ |
| 558 | buf->st_size = fpb->ioFlLgLen; |
| 559 | buf->st_rsize = fpb->ioFlRLgLen; |
| 560 | } |
| 561 | /* Fill in various times. */ |
| 562 | buf->st_atime = fpb->ioFlCrDat; |
| 563 | buf->st_mtime = fpb->ioFlMdDat; |
| 564 | buf->st_ctime = fpb->ioFlCrDat; |
| 565 | /* Set up an imitation inode number. */ |
| 566 | buf->st_ino = (unsigned short) fpb->ioDirID; |
| 567 | /* Set up an imitation device. */ |
| 568 | GetVRefNum (buf->st_ino, &buf->st_dev); |
| 569 | buf->st_uid = __uid; |
| 570 | buf->st_gid = __gid; |
| 571 | /* buf->st_FlFndrInfo = fpb->ioFlFndrInfo; */ |
| 572 | return 0; |
| 573 | } |
| 574 | |
| 575 | /* stat() sets up an empty dirid. */ |
| 576 | |
| 577 | int |
| 578 | stat (char *path, struct stat *buf) |
| 579 | { |
| 580 | long rslt, errnum; |
| 581 | char tmpname[256]; |
| 582 | |
| 583 | mpwify_filename (path, tmpname); |
| 584 | if (DebugPI) |
| 585 | fprintf (stderr, "# stat (%s, %x)", tmpname, buf); |
| 586 | PROGRESS (1); |
| 587 | rslt = _stat (tmpname, 0L, buf); |
| 588 | errnum = errno; |
| 589 | if (DebugPI) |
| 590 | { |
| 591 | fprintf (stderr, " -> %d", rslt); |
| 592 | if (rslt != 0) |
| 593 | fprintf (stderr, " (errno is %d)", errnum); |
| 594 | fprintf (stderr, "\n"); |
| 595 | fflush (stderr); |
| 596 | } |
| 597 | if (rslt != 0) |
| 598 | errno = errnum; |
| 599 | return rslt; |
| 600 | } |
| 601 | |
| 602 | int |
| 603 | fstat (int fd, struct stat *buf) |
| 604 | { |
| 605 | FCBPBRec fcb; |
| 606 | FILE *fp; |
| 607 | Str255 pathname; |
| 608 | long dirid = 0L, temp; |
| 609 | long rslt, errnum; |
| 610 | short err; |
| 611 | |
| 612 | if (DebugPI < 0) |
| 613 | DebugPI = (*(getenv ("DEBUG_PATHNAMES")) == '1' ? 1 : 0); |
| 614 | if (DebugPI) |
| 615 | fprintf (stderr, "# fstat (%d, %x)", fd, buf); |
| 616 | PROGRESS (1); |
| 617 | pathname[0] = 0; |
| 618 | #ifdef FIOFNAME |
| 619 | /* Use an MPW-specific ioctl to get the pathname associated with |
| 620 | the file descriptor. */ |
| 621 | ioctl (fd, FIOFNAME, (long *) pathname); |
| 622 | #else |
| 623 | you lose |
| 624 | #endif |
| 625 | if (DebugPI) |
| 626 | fprintf (stderr, " (name is %s)", pathname); |
| 627 | dirid = 0L /* fcb.ioFCBParID */ ; |
| 628 | rslt = _stat ((char *) pathname, dirid, buf); |
| 629 | errnum = errno; |
| 630 | if (DebugPI) |
| 631 | { |
| 632 | fprintf (stderr, " -> %d", rslt); |
| 633 | if (rslt != 0) |
| 634 | fprintf (stderr, " (errno is %d)", errnum); |
| 635 | fprintf (stderr, "\n"); |
| 636 | fflush (stderr); |
| 637 | } |
| 638 | if (rslt != 0) |
| 639 | errno = errnum; |
| 640 | return rslt; |
| 641 | } |
| 642 | |
| 643 | #endif /* n USE_MW_HEADERS */ |
| 644 | |
| 645 | chdir () |
| 646 | { |
| 647 | errno = ENOSYS; |
| 648 | return (-1); |
| 649 | } |
| 650 | |
| 651 | char * |
| 652 | getcwd (char *buf, int size) |
| 653 | { |
| 654 | if (buf == NULL) |
| 655 | buf = (char *) malloc (size); |
| 656 | strcpy(buf, ":"); |
| 657 | return buf; |
| 658 | } |
| 659 | |
| 660 | /* This should probably be more elaborate for MPW. */ |
| 661 | |
| 662 | char * |
| 663 | getpwd () |
| 664 | { |
| 665 | return ":"; |
| 666 | } |
| 667 | |
| 668 | int |
| 669 | mpw_open (char *filename, int arg2, int arg3) |
| 670 | { |
| 671 | #undef open |
| 672 | int fd, errnum = 0; |
| 673 | char tmpname[256]; |
| 674 | |
| 675 | mpwify_filename (filename, tmpname); |
| 676 | fd = open (tmpname, arg2); |
| 677 | errnum = errno; |
| 678 | |
| 679 | if (DebugPI) |
| 680 | { |
| 681 | fprintf (stderr, "# open (%s, %d, %d)", tmpname, arg2, arg3); |
| 682 | fprintf (stderr, " -> %d", fd); |
| 683 | if (fd == -1) |
| 684 | fprintf (stderr, " (errno is %d)", errnum); |
| 685 | fprintf (stderr, "\n"); |
| 686 | } |
| 687 | if (fd == -1) |
| 688 | errno = errnum; |
| 689 | return fd; |
| 690 | } |
| 691 | |
| 692 | int |
| 693 | mpw_access (char *filename, unsigned int cmd) |
| 694 | { |
| 695 | #undef access |
| 696 | |
| 697 | int rslt, errnum = 0; |
| 698 | struct stat st; |
| 699 | char tmpname[256]; |
| 700 | |
| 701 | mpwify_filename (filename, tmpname); |
| 702 | if (cmd & R_OK || cmd & X_OK) |
| 703 | { |
| 704 | rslt = stat (tmpname, &st); |
| 705 | errnum = errno; |
| 706 | if (rslt >= 0) |
| 707 | { |
| 708 | if ((((st.st_mode & 004) == 0) && (cmd & R_OK)) |
| 709 | || (((st.st_mode & 002) == 0) && (cmd & W_OK)) |
| 710 | || (((st.st_mode & 001) == 0) && (cmd & X_OK))) |
| 711 | { |
| 712 | rslt = -1; |
| 713 | errnum = EACCES; |
| 714 | } |
| 715 | } |
| 716 | } |
| 717 | if (DebugPI) |
| 718 | { |
| 719 | fprintf (stderr, "# mpw_access (%s, %d)", tmpname, cmd); |
| 720 | fprintf (stderr, " -> %d", rslt); |
| 721 | if (rslt != 0) |
| 722 | fprintf (stderr, " (errno is %d)", errnum); |
| 723 | fprintf (stderr, "\n"); |
| 724 | } |
| 725 | if (rslt != 0) |
| 726 | errno = errnum; |
| 727 | return rslt; |
| 728 | } |
| 729 | |
| 730 | /* The MPW library creat() has no mode argument. */ |
| 731 | |
| 732 | int |
| 733 | mpw_creat (char *path, /* mode_t */ int mode) |
| 734 | { |
| 735 | #undef creat |
| 736 | |
| 737 | #ifdef USE_MW_HEADERS |
| 738 | return creat (path, mode); |
| 739 | #else |
| 740 | return creat (path); |
| 741 | #endif |
| 742 | } |
| 743 | |
| 744 | /* This is a hack to get control in an MPW tool before it crashes the |
| 745 | machine. */ |
| 746 | |
| 747 | mpw_special_init (name) |
| 748 | char *name; |
| 749 | { |
| 750 | if (strstr (name, "DEBUG")) |
| 751 | DebugStr("\pat beginning of program"); |
| 752 | } |
| 753 | |
| 754 | static int current_umask; |
| 755 | |
| 756 | int |
| 757 | umask(int mask) |
| 758 | { |
| 759 | int oldmask = current_umask; |
| 760 | |
| 761 | current_umask = mask; |
| 762 | return oldmask; |
| 763 | } |
| 764 | |
| 765 | /* Cursor-spinning stuff that includes metering of spin rate and delays. */ |
| 766 | |
| 767 | /* Nonzero when cursor spinning has been set up properly. */ |
| 768 | |
| 769 | int cursor_inited; |
| 770 | |
| 771 | /* Nonzero if spin should be measured and excessive delays reported. */ |
| 772 | |
| 773 | int measure_spin; |
| 774 | |
| 775 | /* Nonzero if spin histogram and rate data should be written out. */ |
| 776 | |
| 777 | int dump_spin_data; |
| 778 | |
| 779 | long warning_threshold = 400000; |
| 780 | |
| 781 | long bucket_size = 1024; |
| 782 | |
| 783 | long bucket_power = 10; |
| 784 | |
| 785 | long numbuckets = 300; |
| 786 | |
| 787 | int *delay_counts; |
| 788 | |
| 789 | int overflow_count; |
| 790 | |
| 791 | char *current_progress; |
| 792 | |
| 793 | static UnsignedWide last_microseconds; |
| 794 | |
| 795 | static char *last_spin_file = ""; |
| 796 | |
| 797 | static int last_spin_line; |
| 798 | |
| 799 | void |
| 800 | warn_if_spin_delay (char *file, int line) |
| 801 | { |
| 802 | long diff, ix; |
| 803 | UnsignedWide now; |
| 804 | |
| 805 | Microseconds(&now); |
| 806 | |
| 807 | diff = now.lo - last_microseconds.lo; |
| 808 | |
| 809 | if (diff > warning_threshold) |
| 810 | fprintf (stderr, "# %s: %ld.%06ld sec delay getting from %s:%d to %s:%d\n", |
| 811 | (current_progress ? current_progress : ""), |
| 812 | diff / 1000000, diff % 1000000, |
| 813 | last_spin_file, last_spin_line, file, line); |
| 814 | if (dump_spin_data) |
| 815 | { |
| 816 | if (diff >= 0) |
| 817 | { |
| 818 | ix = diff >> bucket_power; |
| 819 | if (ix >= 0 && ix < numbuckets && delay_counts != NULL) |
| 820 | ++delay_counts[ix]; |
| 821 | else |
| 822 | ++overflow_count; |
| 823 | } |
| 824 | else |
| 825 | fprintf (stderr, "raw diff is %ld (?)\n", diff); |
| 826 | } |
| 827 | } |
| 828 | |
| 829 | void |
| 830 | record_for_spin_delay (char *file, int line) |
| 831 | { |
| 832 | Microseconds (&last_microseconds); |
| 833 | last_spin_file = file; |
| 834 | last_spin_line = line; |
| 835 | } |
| 836 | |
| 837 | void |
| 838 | mpw_start_progress (char *str, int n, char *file, int line) |
| 839 | { |
| 840 | int i; |
| 841 | char *measure, *threshold; |
| 842 | |
| 843 | if (!cursor_inited) |
| 844 | { |
| 845 | InitCursorCtl (nil); |
| 846 | cursor_inited = 1; |
| 847 | record_for_spin_delay (file, line); |
| 848 | measure = getenv ("MEASURE_SPIN"); |
| 849 | if (measure != NULL && measure[0] != '\0') |
| 850 | { |
| 851 | measure_spin = 1; |
| 852 | if (strcmp (measure, "all") == 0) |
| 853 | dump_spin_data = 1; |
| 854 | } |
| 855 | threshold = getenv ("SPIN_WARN_THRESHOLD"); |
| 856 | if (threshold != NULL && threshold[0] != '\0') |
| 857 | warning_threshold = atol (threshold); |
| 858 | if (dump_spin_data) |
| 859 | { |
| 860 | if (delay_counts == NULL) |
| 861 | delay_counts = (int *) malloc (numbuckets * sizeof (int)); |
| 862 | for (i = 0; i < numbuckets; ++i) |
| 863 | delay_counts[i] = 0; |
| 864 | overflow_count = 0; |
| 865 | } |
| 866 | } |
| 867 | current_progress = str; |
| 868 | |
| 869 | sys_nerr = errno_max (); |
| 870 | |
| 871 | mpw_special_init (str); |
| 872 | } |
| 873 | |
| 874 | void |
| 875 | mpw_progress (int n) |
| 876 | { |
| 877 | SpinCursor (32); |
| 878 | } |
| 879 | |
| 880 | void |
| 881 | mpw_progress_measured (int n, char *file, int line) |
| 882 | { |
| 883 | if (measure_spin) |
| 884 | warn_if_spin_delay (file, line); |
| 885 | SpinCursor (32); |
| 886 | if (measure_spin) |
| 887 | record_for_spin_delay (file, line); |
| 888 | } |
| 889 | |
| 890 | void |
| 891 | mpw_end_progress (char *str, char *file, int line) |
| 892 | { |
| 893 | long i, delay, count = 0, sum = 0, avgdelay, spinrate; |
| 894 | long curpower = 0, curgroup = 0; |
| 895 | |
| 896 | /* Warn if it's been a while since the last spin. */ |
| 897 | if (measure_spin) |
| 898 | warn_if_spin_delay (file, line); |
| 899 | |
| 900 | /* Dump all the nonzero delay counts and an approximation of the delay. */ |
| 901 | if (dump_spin_data && delay_counts != NULL) |
| 902 | { |
| 903 | for (i = 0; i < numbuckets; ++i) |
| 904 | { |
| 905 | delay = (i + 1) * bucket_size; |
| 906 | sum += delay_counts[i] * (i + 1); |
| 907 | count += delay_counts[i]; |
| 908 | if (delay <= (1 << curpower)) |
| 909 | { |
| 910 | curgroup += delay_counts[i]; |
| 911 | } |
| 912 | else |
| 913 | { |
| 914 | if (curgroup > 0) |
| 915 | fprintf (stderr, |
| 916 | "# %s: %d delays between %ld.%06ld and %ld.%06ld sec\n", |
| 917 | (str ? str : ""), |
| 918 | curgroup, |
| 919 | (1 << curpower) / 1000000, |
| 920 | (1 << curpower) % 1000000, |
| 921 | (1 << (curpower + 1)) / 1000000, |
| 922 | (1 << (curpower + 1)) % 1000000); |
| 923 | ++curpower; |
| 924 | curgroup = 0; |
| 925 | } |
| 926 | } |
| 927 | if (count > 0) |
| 928 | { |
| 929 | avgdelay = (sum * bucket_size) / count; |
| 930 | spinrate = 1000000 / avgdelay; |
| 931 | fprintf (stderr, "# %s: Average spin rate is %d times/sec\n", |
| 932 | (str ? str : ""), spinrate); |
| 933 | } |
| 934 | } |
| 935 | } |
| 936 | |
| 937 | #ifdef PROGRESS_TEST |
| 938 | |
| 939 | /* Test program. */ |
| 940 | |
| 941 | main () |
| 942 | { |
| 943 | int i, j; |
| 944 | double x = 1.0, y = 2.4; |
| 945 | long start = Microseconds (), tm; FIXME |
| 946 | |
| 947 | START_PROGRESS ("hi", 0); |
| 948 | |
| 949 | for (i = 0; i < 1000; ++i) |
| 950 | { |
| 951 | PROGRESS (1); |
| 952 | |
| 953 | for (j = 0; j < (i * 100); ++j) |
| 954 | { |
| 955 | x += (x * y) / j; |
| 956 | } |
| 957 | } |
| 958 | |
| 959 | END_PROGRESS ("hi"); |
| 960 | |
| 961 | tm = Microseconds () - start; |
| 962 | |
| 963 | printf ("Total time is %d.%d secs\n", tm / 1000000, tm % 1000000); |
| 964 | } |
| 965 | |
| 966 | #endif |
| 967 | |
| 968 | #ifdef USE_MW_HEADERS |
| 969 | /* Empty definitions for Metrowerks' SIOUX console library. */ |
| 970 | |
| 971 | #ifndef __CONSOLE__ |
| 972 | #include <console.h> |
| 973 | #endif |
| 974 | |
| 975 | short |
| 976 | InstallConsole(short fd) |
| 977 | { |
| 978 | #pragma unused (fd) |
| 979 | return 0; |
| 980 | } |
| 981 | |
| 982 | void |
| 983 | RemoveConsole(void) |
| 984 | { |
| 985 | } |
| 986 | |
| 987 | long |
| 988 | WriteCharsToConsole(char *buf, long n) |
| 989 | { |
| 990 | #pragma unused (buf, n) |
| 991 | return 0; |
| 992 | } |
| 993 | |
| 994 | long ReadCharsFromConsole(char *buf, long n) |
| 995 | { |
| 996 | #pragma unused (buf, n) |
| 997 | return 0; |
| 998 | } |
| 999 | |
| 1000 | extern char * |
| 1001 | __ttyname(long fd) |
| 1002 | { |
| 1003 | static char *__devicename = "null device"; |
| 1004 | |
| 1005 | if (fd >= 0 && fd <= 2) |
| 1006 | return (__devicename); |
| 1007 | return NULL; |
| 1008 | } |
| 1009 | |
| 1010 | #endif |