1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2009 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #ifndef _SFHDR_H 23 #define _SFHDR_H 1 24 #if !defined(_BLD_sfio) && !defined(_BLD_stdio) 25 #define _BLD_sfio 1 26 #endif 27 28 /* Internal definitions for sfio. 29 ** Written by Kiem-Phong Vo 30 */ 31 32 #define _next next 33 #define _endw endw 34 #define _endr endr 35 #define _endb endb 36 #define _push push 37 #define _flags flags 38 #define _file file 39 #define _data data 40 #define _size size 41 #define _val val 42 43 #include "FEATURE/sfio" 44 #include "FEATURE/mmap" 45 46 /* define va_list, etc. before including sfio_t.h (sfio.h) */ 47 #if !_PACKAGE_ast 48 49 /* some systems don't know large files */ 50 #if defined(_NO_LARGEFILE64_SOURCE) || _mips == 2 /* || __hppa */ 51 #undef _NO_LARGEFILE64_SOURCE 52 #define _NO_LARGEFILE64_SOURCE 1 53 #undef _LARGEFILE64_SOURCE 54 #undef _LARGEFILE_SOURCE 55 #endif 56 57 #if !_NO_LARGEFILE64_SOURCE && _typ_off64_t && _lib_lseek64 && _lib_stat64 58 #undef _LARGEFILE64_SOURCE 59 #undef _LARGEFILE_SOURCE 60 #undef _FILE_OFFSET_BITS 61 #define _LARGEFILE64_SOURCE 1 /* enabling the *64 stuff */ 62 #define _LARGEFILE_SOURCE 1 63 #endif 64 65 #if _hdr_stdarg 66 #include <stdarg.h> 67 #else 68 #include <varargs.h> 69 #endif 70 #include "FEATURE/common" 71 #if !__STD_C 72 #define const 73 #endif 74 #endif /* !_PACKAGE_ast */ 75 76 #include "sfio_t.h" 77 78 /* note that the macro vt_threaded has effect on vthread.h */ 79 #include <vthread.h> 80 81 /* file system info */ 82 #if _PACKAGE_ast 83 84 #include <ast.h> 85 #include <ast_time.h> 86 #include <ast_tty.h> 87 #include <ls.h> 88 89 /* ast always provides multibyte handling */ 90 #undef _hdr_wchar 91 #undef _lib_mbrtowc 92 #undef _lib_wcrtomb 93 #define _hdr_wchar 1 94 #define _lib_mbrtowc 1 95 #define _lib_wcrtomb 1 96 97 #if _mem_st_blksize_stat 98 #define _stat_blksize 1 99 #endif 100 101 #if _lib_localeconv && _hdr_locale 102 #define _lib_locale 1 103 #endif 104 105 #define sfoff_t off_t 106 #define sfstat_t struct stat 107 #define sysclosef close 108 #define syscreatf creat 109 #define sysdupf dup 110 #define sysfcntlf fcntl 111 #define sysfstatf fstat 112 #define sysftruncatef ftruncate 113 #define syslseekf lseek 114 #define sysmmapf mmap 115 #define sysmunmapf munmap 116 #define sysopenf open 117 #define syspipef pipe 118 #define sysreadf read 119 #define sysremovef remove 120 #define sysstatf stat 121 #define syswritef write 122 123 #else /*!_PACKAGE_ast*/ 124 125 /* when building the binary compatibility package, a number of header files 126 are not needed and they may get in the way so we remove them here. 127 */ 128 #if _SFBINARY_H 129 #undef _hdr_time 130 #undef _sys_time 131 #undef _sys_stat 132 #undef _hdr_stat 133 #undef _hdr_filio 134 #undef _sys_filio 135 #undef _lib_poll 136 #undef _stream_peek 137 #undef _socket_peek 138 #undef _hdr_vfork 139 #undef _sys_vfork 140 #undef _lib_vfork 141 #undef _hdr_values 142 #undef _hdr_math 143 #undef _sys_mman 144 #undef _hdr_mman 145 #undef _sys_ioctl 146 #endif 147 148 #if _hdr_stdlib 149 #include <stdlib.h> 150 #endif 151 152 #if _hdr_string 153 #include <string.h> 154 #endif 155 156 #if _hdr_time 157 #include <time.h> 158 #endif 159 #if _sys_time 160 #include <sys/time.h> 161 #endif 162 163 #if _sys_stat 164 #include <sys/stat.h> 165 #else 166 #if _hdr_stat 167 #include <stat.h> 168 #ifndef _sys_stat 169 #define _sys_stat 1 170 #endif 171 #endif 172 #endif /*_sys_stat*/ 173 174 #ifndef _sys_stat 175 #define _sys_stat 0 176 #endif 177 178 #include <fcntl.h> 179 180 #ifndef F_SETFD 181 #ifndef FIOCLEX 182 #if _hdr_filio 183 #include <filio.h> 184 #else 185 #if _sys_filio 186 #include <sys/filio.h> 187 #endif /*_sys_filio*/ 188 #endif /*_hdr_filio*/ 189 #endif /*_FIOCLEX*/ 190 #endif /*F_SETFD*/ 191 192 #if _hdr_unistd 193 #include <unistd.h> 194 #endif 195 196 #if !_LARGEFILE64_SOURCE /* turn off the *64 stuff */ 197 #undef _typ_off64_t 198 #undef _typ_struct_stat64 199 #undef _lib_creat64 200 #undef _lib_open64 201 #undef _lib_close64 202 #undef _lib_stat64 203 #undef _lib_fstat64 204 #undef _lib_ftruncate64 205 #undef _lib_lseek64 206 #undef _lib_mmap64 207 #undef _lib_munmap64 208 #endif /*!_LARGEFILE64_SOURCE */ 209 210 /* see if we can use memory mapping for io */ 211 #if _LARGEFILE64_SOURCE && !_lib_mmap64 212 #undef _mmap_worthy 213 #endif 214 #if !_mmap_worthy 215 #undef _hdr_mman 216 #undef _sys_mman 217 #endif 218 #if _hdr_mman 219 #include <mman.h> 220 #endif 221 #if _sys_mman 222 #include <sys/mman.h> 223 #endif 224 225 /* standardize system calls and types dealing with files */ 226 #if _typ_off64_t 227 #define sfoff_t off64_t 228 #else 229 #define sfoff_t off_t 230 #endif 231 #if _typ_struct_stat64 232 #define sfstat_t struct stat64 233 #else 234 #define sfstat_t struct stat 235 #endif 236 #if _lib_lseek64 237 #define syslseekf lseek64 238 #else 239 #define syslseekf lseek 240 #endif 241 #if _lib_stat64 242 #define sysstatf stat64 243 #else 244 #define sysstatf stat 245 #endif 246 #if _lib_fstat64 247 #define sysfstatf fstat64 248 #else 249 #define sysfstatf fstat 250 #endif 251 #if _lib_mmap64 252 #define sysmmapf mmap64 253 #else 254 #define sysmmapf mmap 255 #endif 256 #if _lib_munmap64 257 #define sysmunmapf munmap64 258 #else 259 #define sysmunmapf munmap 260 #endif 261 #if _lib_open64 262 #define sysopenf open64 263 #else 264 #define sysopenf open 265 #endif 266 #if _lib_creat64 267 #define syscreatf creat64 268 #else 269 #define syscreatf creat 270 #endif 271 #if _lib_close64 272 #define sysclosef close64 273 #else 274 #define sysclosef close 275 #endif 276 #if _lib_ftruncate64 277 #undef _lib_ftruncate 278 #define _lib_ftruncate 1 279 #define sysftruncatef ftruncate64 280 #endif 281 #if !_lib_ftruncate64 && _lib_ftruncate 282 #define sysftruncatef ftruncate 283 #endif 284 #if _lib_remove 285 #define sysremovef remove 286 #else 287 #define sysremovef unlink 288 #endif 289 290 #define sysreadf read 291 #define syswritef write 292 #define syspipef pipe 293 #define sysdupf dup 294 #define sysfcntlf fcntl 295 296 #endif /*_PACKAGE_ast*/ 297 298 #if !_mmap_worthy 299 #undef MAP_TYPE 300 #endif 301 302 #include "FEATURE/float" 303 304 #include <errno.h> 305 #include <ctype.h> 306 307 /* deal with multi-byte character and string conversions */ 308 #if _PACKAGE_ast 309 310 #include <wchar.h> 311 312 #define _has_multibyte 1 313 314 #define SFMBMAX mbmax() 315 #define SFMBCPY(to,fr) memcpy((to), (fr), sizeof(mbstate_t)) 316 #define SFMBCLR(mb) memset((mb), 0, sizeof(mbstate_t)) 317 #define SFMBSET(lhs,v) (lhs = (v)) 318 #define SFMBLEN(s,mb) mbsize(s) 319 #define SFMBDCL(ms) mbstate_t ms; 320 321 #else 322 323 #if _hdr_wchar && _typ_mbstate_t && _lib_wcrtomb && _lib_mbrtowc 324 #define _has_multibyte 1 /* Xopen-compliant */ 325 #include <wchar.h> 326 #define SFMBCPY(to,fr) memcpy((to), (fr), sizeof(mbstate_t)) 327 #define SFMBCLR(mb) memset((mb), 0, sizeof(mbstate_t)) 328 #define SFMBSET(lhs,v) (lhs = (v)) 329 #define SFMBDCL(mb) mbstate_t mb; 330 #define SFMBLEN(s,mb) mbrtowc(NIL(wchar_t*), (s), SFMBMAX, (mb) ) 331 #endif /*_hdr_wchar && _typ_mbstate_t && _lib_wcrtomb && _lib_mbrtowc*/ 332 333 #if !_has_multibyte && _hdr_wchar && _lib_mbtowc && _lib_wctomb 334 #define _has_multibyte 2 /* no shift states */ 335 #include <wchar.h> 336 #undef mbrtowc 337 #define mbrtowc(wp,s,n,mb) mbtowc(wp, s, n) 338 #undef wcrtomb 339 #define wcrtomb(s,wc,mb) wctomb(s, wc) 340 #define SFMBCPY(to,fr) 341 #define SFMBCLR(mb) 342 #define SFMBSET(lhs,v) 343 #define SFMBDCL(mb) 344 #define SFMBLEN(s,mb) mbrtowc(NIL(wchar_t*), (s), SFMBMAX, (mb) ) 345 #endif /*!_has_multibyte && _hdr_wchar && _lib_mbtowc && _lib_wctomb*/ 346 347 #ifdef MB_CUR_MAX 348 #define SFMBMAX MB_CUR_MAX 349 #else 350 #define SFMBMAX sizeof(Sflong_t) 351 #endif 352 353 #endif /* _PACKAGE_ast */ 354 355 #if !_has_multibyte 356 #define _has_multibyte 0 /* no multibyte support */ 357 #define SFMBCPY(to,fr) 358 #define SFMBCLR(mb) 359 #define SFMBSET(lhs,v) 360 #define SFMBLEN(s,mb) (*(s) ? 1 : 0) 361 #define SFMBDCL(mb) 362 #endif /* _has_multibyte */ 363 364 /* dealing with streams that might be accessed concurrently */ 365 #if vt_threaded 366 367 #define SFMTXdecl(ff,_mf_) Sfio_t* _mf_ = (ff) 368 #define SFMTXbegin(ff,_mf_,rv) \ 369 { if((ff)->_flags&SF_MTSAFE) \ 370 { (_mf_) = (ff); \ 371 if(sfmutex((ff), SFMTX_LOCK) != 0) return(rv); \ 372 if(_Sfnotify) \ 373 { (*_Sfnotify)((_mf_), SF_MTACCESS, (Void_t*)(&(ff)) ); \ 374 if(!(ff)) (ff) = (_mf_); \ 375 } \ 376 } \ 377 } 378 #define SFMTXend(ff,_mf_) \ 379 { if((ff)->_flags&SF_MTSAFE) \ 380 { if(_Sfnotify) \ 381 (*_Sfnotify)((_mf_), SF_MTACCESS, NIL(Void_t*) ); \ 382 sfmutex((ff), SFMTX_UNLOCK); \ 383 (ff) = (_mf_); \ 384 } \ 385 } 386 387 #define SFONCE() (_Sfdone ? 0 : vtonce(_Sfonce,_Sfoncef)) 388 389 #define SFMTXLOCK(f) (((f)->flags&SF_MTSAFE) ? sfmutex(f,SFMTX_LOCK) : 0) 390 #define SFMTXUNLOCK(f) (((f)->flags&SF_MTSAFE) ? sfmutex(f,SFMTX_UNLOCK) : 0) 391 392 #define SFMTXDECL(ff) SFMTXdecl((ff), _mtxf1_) 393 #define SFMTXBEGIN(ff,v) { SFMTXbegin((ff), _mtxf1_, (v) ); } 394 #define SFMTXEND(ff) { SFMTXend(ff, _mtxf1_); } 395 #define SFMTXENTER(ff,v) { if(!(ff)) return(v); SFMTXBEGIN((ff), (v)); } 396 #define SFMTXRETURN(ff,v) { SFMTXEND(ff); return(v); } 397 398 #define SFMTXDECL2(ff) SFMTXdecl((ff), _mtxf2_) 399 #define SFMTXBEGIN2(ff,v) { SFMTXbegin((ff), _mtxf2_, (v) ); } 400 #define SFMTXEND2(ff) { SFMTXend((ff), _mtxf2_); } 401 402 #define POOLMTXLOCK(p) ( vtmtxlock(&(p)->mutex) ) 403 #define POOLMTXUNLOCK(p) ( vtmtxunlock(&(p)->mutex) ) 404 #define POOLMTXENTER(p) { POOLMTXLOCK(p); } 405 #define POOLMTXRETURN(p,rv) { POOLMTXUNLOCK(p); return(rv); } 406 407 #else /*!vt_threaded*/ 408 409 #undef SF_MTSAFE /* no need to worry about thread-safety */ 410 #define SF_MTSAFE 0 411 412 #define SFONCE() /*(0)*/ 413 414 #define SFMTXLOCK(f) /*(0)*/ 415 #define SFMTXUNLOCK(f) /*(0)*/ 416 417 #define SFMTXDECL(ff) /*(0)*/ 418 #define SFMTXBEGIN(ff,v) /*(0)*/ 419 #define SFMTXEND(ff) /*(0)*/ 420 #define SFMTXENTER(ff,v) { if(!(ff)) return(v); } 421 #define SFMTXRETURN(ff,v) { return(v); } 422 423 #define SFMTXDECL2(ff) /*(0)*/ 424 #define SFMTXBEGIN2(ff,v) /*(0)*/ 425 #define SFMTXEND2(ff) /*(0)*/ 426 427 #define POOLMTXLOCK(p) 428 #define POOLMTXUNLOCK(p) 429 #define POOLMTXENTER(p) 430 #define POOLMTXRETURN(p,v) { return(v); } 431 432 #endif /*vt_threaded*/ 433 434 435 /* functions for polling readiness of streams */ 436 #if _lib_select 437 #undef _lib_poll 438 #else 439 #if _lib_poll_fd_1 || _lib_poll_fd_2 440 #define _lib_poll 1 441 #endif 442 #endif /*_lib_select_*/ 443 444 #if _lib_poll 445 #include <poll.h> 446 447 #if _lib_poll_fd_1 448 #define SFPOLL(pfd,n,tm) poll((pfd),(ulong)(n),(tm)) 449 #else 450 #define SFPOLL(pfd,n,tm) poll((ulong)(n),(pfd),(tm)) 451 #endif 452 #endif /*_lib_poll*/ 453 454 #if _stream_peek 455 #include <stropts.h> 456 #endif 457 458 #if _socket_peek 459 #include <sys/socket.h> 460 #endif 461 462 /* to test for executable access mode of a file */ 463 #ifndef X_OK 464 #define X_OK 01 465 #endif 466 467 /* alternative process forking */ 468 #if _lib_vfork && !defined(fork) && !defined(sparc) && !defined(__sparc) 469 #if _hdr_vfork 470 #include <vfork.h> 471 #endif 472 #if _sys_vfork 473 #include <sys/vfork.h> 474 #endif 475 #define fork vfork 476 #endif 477 478 /* to get rid of pesky compiler warnings */ 479 #if __STD_C 480 #define NOTUSED(x) (void)(x) 481 #else 482 #define NOTUSED(x) (&x,1) 483 #endif 484 485 /* Private flags in the "bits" field */ 486 #define SF_MMAP 00000001 /* in memory mapping mode */ 487 #define SF_BOTH 00000002 /* both read/write */ 488 #define SF_HOLE 00000004 /* a hole of zero's was created */ 489 #define SF_NULL 00000010 /* stream is /dev/null */ 490 #define SF_SEQUENTIAL 00000020 /* sequential access */ 491 #define SF_JUSTSEEK 00000040 /* just did a sfseek */ 492 #define SF_PRIVATE 00000100 /* private stream to Sfio, no mutex */ 493 #define SF_ENDING 00000200 /* no re-io on interrupts at closing */ 494 #define SF_WIDE 00000400 /* in wide mode - stdio only */ 495 496 /* "bits" flags that must be cleared in sfclrlock */ 497 #define SF_TMPBITS 00170000 498 #define SF_DCDOWN 00010000 /* recurse down the discipline stack */ 499 500 #define SF_WCFORMAT 00020000 /* wchar_t formatting - stdio only */ 501 #if _has_multibyte 502 #define SFWCSET(f) ((f)->bits |= SF_WCFORMAT) 503 #define SFWCGET(f,v) (((v) = (f)->bits & SF_WCFORMAT), ((f)->bits &= ~SF_WCFORMAT) ) 504 #else 505 #define SFWCSET(f) 506 #define SFWCGET(f,v) 507 #endif 508 509 #define SF_MVSIZE 00040000 /* f->size was reset in sfmove() */ 510 #define SFMVSET(f) (((f)->size *= SF_NMAP), ((f)->bits |= SF_MVSIZE) ) 511 #define SFMVUNSET(f) (!((f)->bits&SF_MVSIZE) ? 0 : \ 512 (((f)->bits &= ~SF_MVSIZE), ((f)->size /= SF_NMAP)) ) 513 514 #define SFCLRBITS(f) (SFMVUNSET(f), ((f)->bits &= ~SF_TMPBITS) ) 515 516 517 /* bits for the mode field, SF_INIT defined in sfio_t.h */ 518 #define SF_RC 00000010 /* peeking for a record */ 519 #define SF_RV 00000020 /* reserve without read or most write */ 520 #define SF_LOCK 00000040 /* stream is locked for io op */ 521 #define SF_PUSH 00000100 /* stream has been pushed */ 522 #define SF_POOL 00000200 /* stream is in a pool but not current */ 523 #define SF_PEEK 00000400 /* there is a pending peek */ 524 #define SF_PKRD 00001000 /* did a peek read */ 525 #define SF_GETR 00002000 /* did a getr on this stream */ 526 #define SF_SYNCED 00004000 /* stream was synced */ 527 #define SF_STDIO 00010000 /* given up the buffer to stdio */ 528 #define SF_AVAIL 00020000 /* was closed, available for reuse */ 529 #define SF_LOCAL 00100000 /* sentinel for a local call */ 530 531 #ifdef DEBUG 532 #define ASSERT(p) ((p) ? 0 : (abort(),0) ) 533 #else 534 #define ASSERT(p) 535 #endif 536 537 /* short-hands */ 538 #define NIL(t) ((t)0) 539 #define reg register 540 #ifndef uchar 541 #define uchar unsigned char 542 #endif 543 #ifndef ulong 544 #define ulong unsigned long 545 #endif 546 #ifndef uint 547 #define uint unsigned int 548 #endif 549 #ifndef ushort 550 #define ushort unsigned short 551 #endif 552 553 #define SECOND 1000 /* millisecond units */ 554 555 /* macros do determine stream types from sfstat_t data */ 556 #ifndef S_IFMT 557 #define S_IFMT 0 558 #endif 559 #ifndef S_IFDIR 560 #define S_IFDIR 0 561 #endif 562 #ifndef S_IFREG 563 #define S_IFREG 0 564 #endif 565 #ifndef S_IFCHR 566 #define S_IFCHR 0 567 #endif 568 #ifndef S_IFIFO 569 #define S_IFIFO 0 570 #endif 571 572 #ifndef S_ISDIR 573 #define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR) 574 #endif 575 #ifndef S_ISREG 576 #define S_ISREG(m) (((m)&S_IFMT) == S_IFREG) 577 #endif 578 #ifndef S_ISCHR 579 #define S_ISCHR(m) (((m)&S_IFMT) == S_IFCHR) 580 #endif 581 582 #ifndef S_ISFIFO 583 # ifdef S_IFIFO 584 # define S_ISFIFO(m) (((m)&S_IFMT) == S_IFIFO) 585 # else 586 # define S_ISFIFO(m) (0) 587 # endif 588 #endif 589 590 #ifdef S_IRUSR 591 #define SF_CREATMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) 592 #else 593 #define SF_CREATMODE 0666 594 #endif 595 596 /* set close-on-exec */ 597 #ifdef F_SETFD 598 # ifndef FD_CLOEXEC 599 # define FD_CLOEXEC 1 600 # endif /*FD_CLOEXEC*/ 601 # define SETCLOEXEC(fd) ((void)fcntl((fd),F_SETFD,FD_CLOEXEC)) 602 #else 603 # ifdef FIOCLEX 604 # define SETCLOEXEC(fd) ((void)ioctl((fd),FIOCLEX,0)) 605 # else 606 # define SETCLOEXEC(fd) 607 # endif /*FIOCLEX*/ 608 #endif /*F_SETFD*/ 609 610 /* a couple of error number that we use, default values are like Linux */ 611 #ifndef EINTR 612 #define EINTR 4 613 #endif 614 #ifndef EBADF 615 #define EBADF 9 616 #endif 617 #ifndef EAGAIN 618 #define EAGAIN 11 619 #endif 620 #ifndef ENOMEM 621 #define ENOMEM 12 622 #endif 623 #ifndef EINVAL 624 #define EINVAL 22 625 #endif 626 #ifndef ESPIPE 627 #define ESPIPE 29 628 #endif 629 630 /* function to get the decimal point for local environment */ 631 #if !defined(SFSETLOCALE) && _PACKAGE_ast 632 #include "lclib.h" 633 #define SFSETLOCALE(dp,tp) \ 634 do if (*(dp) == 0) { \ 635 Lc_numeric_t* lv = (Lc_numeric_t*)LCINFO(AST_LC_NUMERIC)->data; \ 636 *(dp) = lv->decimal; \ 637 if (tp) *(tp) = lv->thousand; \ 638 } while (0) 639 #endif /*!defined(SFSETLOCALE) && _PACKAGE_ast*/ 640 641 #if !defined(SFSETLOCALE) && _lib_locale 642 #include <locale.h> 643 #define SFSETLOCALE(decimal,thousand) \ 644 do { struct lconv* lv; \ 645 if(*(decimal) == 0) \ 646 { *(decimal) = '.'; \ 647 if (thousand) *(thousand) = -1; \ 648 if((lv = localeconv())) \ 649 { if(lv->decimal_point && *lv->decimal_point) \ 650 *(decimal) = *(unsigned char*)lv->decimal_point; \ 651 if(thousand && lv->thousands_sep && *lv->thousands_sep) \ 652 *(thousand) = *(unsigned char*)lv->thousands_sep; \ 653 } \ 654 } \ 655 } while (0) 656 #endif /*!defined(SFSETLOCALE) && _lib_locale*/ 657 658 #if !defined(SFSETLOCALE) 659 #define SFSETLOCALE(decimal,thousand) (*(decimal)='.') 660 #endif 661 662 /* stream pool structure. */ 663 typedef struct _sfpool_s Sfpool_t; 664 struct _sfpool_s 665 { Sfpool_t* next; 666 int mode; /* type of pool */ 667 int s_sf; /* size of pool array */ 668 int n_sf; /* number currently in pool */ 669 Sfio_t** sf; /* array of streams */ 670 Sfio_t* array[3]; /* start with 3 */ 671 Vtmutex_t mutex; /* mutex lock object */ 672 }; 673 674 /* reserve buffer structure */ 675 typedef struct _sfrsrv_s Sfrsrv_t; 676 struct _sfrsrv_s 677 { ssize_t slen; /* last string length */ 678 ssize_t size; /* buffer size */ 679 uchar data[1]; /* data buffer */ 680 }; 681 682 /* co-process structure */ 683 typedef struct _sfproc_s Sfproc_t; 684 struct _sfproc_s 685 { int pid; /* process id */ 686 uchar* rdata; /* read data being cached */ 687 int ndata; /* size of cached data */ 688 int size; /* buffer size */ 689 int file; /* saved file descriptor */ 690 int sigp; /* sigpipe protection needed */ 691 }; 692 693 /* extensions to sfvprintf/sfvscanf */ 694 #define FP_SET(fp,fn) (fp < 0 ? (fn += 1) : (fn = fp) ) 695 #define FP_WIDTH 0 696 #define FP_PRECIS 1 697 #define FP_BASE 2 698 #define FP_STR 3 699 #define FP_SIZE 4 700 #define FP_INDEX 5 /* index size */ 701 702 typedef struct _fmt_s Fmt_t; 703 typedef struct _fmtpos_s Fmtpos_t; 704 typedef union 705 { int i, *ip; 706 long l, *lp; 707 short h, *hp; 708 uint ui; 709 ulong ul; 710 ushort uh; 711 Sflong_t ll, *llp; 712 Sfulong_t lu; 713 Sfdouble_t ld; 714 double d; 715 float f; 716 #if _has_multibyte 717 wchar_t wc; 718 wchar_t *ws, **wsp; 719 #endif 720 char c, *s, **sp; 721 uchar uc, *us, **usp; 722 Void_t *vp; 723 Sffmt_t *ft; 724 } Argv_t; 725 726 struct _fmt_s 727 { char* form; /* format string */ 728 va_list args; /* corresponding arglist */ 729 SFMBDCL(mbs) /* multibyte parsing state */ 730 731 char* oform; /* original format string */ 732 va_list oargs; /* original arg list */ 733 int argn; /* number of args already used */ 734 Fmtpos_t* fp; /* position list */ 735 736 Sffmt_t* ft; /* formatting environment */ 737 Sffmtevent_f eventf; /* event function */ 738 Fmt_t* next; /* stack frame pointer */ 739 }; 740 741 struct _fmtpos_s 742 { Sffmt_t ft; /* environment */ 743 Argv_t argv; /* argument value */ 744 int fmt; /* original format */ 745 int need[FP_INDEX]; /* positions depending on */ 746 }; 747 748 #define LEFTP '(' 749 #define RIGHTP ')' 750 #define QUOTE '\'' 751 752 #ifndef CHAR_BIT 753 #define CHAR_BIT 8 754 #endif 755 756 #define FMTSET(ft, frm,ags, fv, sz, flgs, wid,pr,bs, ts,ns) \ 757 ((ft->form = (char*)frm), va_copy(ft->args,ags), \ 758 (ft->fmt = fv), (ft->size = sz), \ 759 (ft->flags = (flgs&SFFMT_SET)), \ 760 (ft->width = wid), (ft->precis = pr), (ft->base = bs), \ 761 (ft->t_str = ts), (ft->n_str = ns) ) 762 #define FMTGET(ft, frm,ags, fv, sz, flgs, wid,pr,bs) \ 763 ((frm = ft->form), va_copy(ags,ft->args), \ 764 (fv = ft->fmt), (sz = ft->size), \ 765 (flgs = (flgs&~(SFFMT_SET))|(ft->flags&SFFMT_SET)), \ 766 (wid = ft->width), (pr = ft->precis), (bs = ft->base) ) 767 768 /* format flags&types, must coexist with those in sfio.h */ 769 #define SFFMT_FORBIDDEN 000077777777 /* for sfio.h only */ 770 #define SFFMT_EFORMAT 001000000000 /* sfcvt converting %e */ 771 #define SFFMT_MINUS 002000000000 /* minus sign */ 772 #define SFFMT_AFORMAT 004000000000 /* sfcvt converting %a */ 773 #define SFFMT_UPPER 010000000000 /* sfcvt converting upper */ 774 775 #define SFFMT_TYPES (SFFMT_SHORT|SFFMT_SSHORT | SFFMT_LONG|SFFMT_LLONG|\ 776 SFFMT_LDOUBLE | SFFMT_IFLAG|SFFMT_JFLAG| \ 777 SFFMT_TFLAG | SFFMT_ZFLAG ) 778 779 /* type of elements to be converted */ 780 #define SFFMT_INT 001 /* %d,%i */ 781 #define SFFMT_UINT 002 /* %u,o,x etc. */ 782 #define SFFMT_FLOAT 004 /* %f,e,g etc. */ 783 #define SFFMT_CHAR 010 /* %c,C */ 784 #define SFFMT_POINTER 020 /* %p,n,s,S */ 785 #define SFFMT_CLASS 040 /* %[ */ 786 787 /* local variables used across sf-functions */ 788 #define _Sfpage (_Sfextern.sf_page) 789 #define _Sfpool (_Sfextern.sf_pool) 790 #define _Sfpmove (_Sfextern.sf_pmove) 791 #define _Sfstack (_Sfextern.sf_stack) 792 #define _Sfnotify (_Sfextern.sf_notify) 793 #define _Sfstdsync (_Sfextern.sf_stdsync) 794 #define _Sfudisc (&(_Sfextern.sf_udisc)) 795 #define _Sfcleanup (_Sfextern.sf_cleanup) 796 #define _Sfexiting (_Sfextern.sf_exiting) 797 #define _Sfdone (_Sfextern.sf_done) 798 #define _Sfonce (_Sfextern.sf_once) 799 #define _Sfoncef (_Sfextern.sf_oncef) 800 #define _Sfmutex (_Sfextern.sf_mutex) 801 typedef struct _sfextern_s 802 { ssize_t sf_page; 803 struct _sfpool_s sf_pool; 804 int (*sf_pmove)_ARG_((Sfio_t*, int)); 805 Sfio_t* (*sf_stack)_ARG_((Sfio_t*, Sfio_t*)); 806 void (*sf_notify)_ARG_((Sfio_t*, int, void*)); 807 int (*sf_stdsync)_ARG_((Sfio_t*)); 808 struct _sfdisc_s sf_udisc; 809 void (*sf_cleanup)_ARG_((void)); 810 int sf_exiting; 811 int sf_done; 812 Vtonce_t* sf_once; 813 void (*sf_oncef)_ARG_((void)); 814 Vtmutex_t* sf_mutex; 815 } Sfextern_t; 816 817 /* get the real value of a byte in a coded long or ulong */ 818 #define SFUVALUE(v) (((ulong)(v))&(SF_MORE-1)) 819 #define SFSVALUE(v) ((( long)(v))&(SF_SIGN-1)) 820 #define SFBVALUE(v) (((ulong)(v))&(SF_BYTE-1)) 821 822 /* pick this many bits in each iteration of double encoding */ 823 #define SF_PRECIS 7 824 825 /* grain size for buffer increment */ 826 #define SF_GRAIN 1024 827 #define SF_PAGE ((ssize_t)(SF_GRAIN*sizeof(int)*2)) 828 829 /* when the buffer is empty, certain io requests may be better done directly 830 on the given application buffers. The below condition determines when. 831 */ 832 #define SFDIRECT(f,n) (((ssize_t)(n) >= (f)->size) || \ 833 ((n) >= SF_GRAIN && (ssize_t)(n) >= (f)->size/16 ) ) 834 835 /* number of pages to memory map at a time */ 836 #define SF_NMAP 4 837 838 #ifndef MAP_VARIABLE 839 #define MAP_VARIABLE 0 840 #endif 841 #ifndef _mmap_fixed 842 #define _mmap_fixed 0 843 #endif 844 845 /* set/unset sequential states for mmap */ 846 #if _lib_madvise && defined(MADV_SEQUENTIAL) && defined(MADV_NORMAL) 847 #define SFMMSEQON(f,a,s) \ 848 do { int oerrno = errno; \ 849 (void)madvise((caddr_t)(a),(size_t)(s),MADV_SEQUENTIAL); \ 850 errno = oerrno; \ 851 } while(0) 852 #define SFMMSEQOFF(f,a,s) \ 853 do { int oerrno = errno; \ 854 (void)madvise((caddr_t)(a),(size_t)(s),MADV_NORMAL); \ 855 errno = oerrno; \ 856 } while(0) 857 #else 858 #define SFMMSEQON(f,a,s) 859 #define SFMMSEQOFF(f,a,s) 860 #endif 861 862 #define SFMUNMAP(f,a,s) (sysmunmapf((caddr_t)(a),(size_t)(s)), \ 863 ((f)->endb = (f)->endr = (f)->endw = (f)->next = \ 864 (f)->data = NIL(uchar*)) ) 865 866 /* safe closing function */ 867 #define CLOSE(f) { while(sysclosef(f) < 0 && errno == EINTR) errno = 0; } 868 869 /* the bottomless bit bucket */ 870 #define DEVNULL "/dev/null" 871 #define SFSETNULL(f) ((f)->extent = (Sfoff_t)(-1), (f)->bits |= SF_NULL) 872 #define SFISNULL(f) ((f)->extent < 0 && ((f)->bits&SF_NULL) ) 873 874 #define SFKILL(f) ((f)->mode = (SF_AVAIL|SF_LOCK) ) 875 #define SFKILLED(f) (((f)->mode&(SF_AVAIL|SF_LOCK)) == (SF_AVAIL|SF_LOCK) ) 876 877 /* exception types */ 878 #define SF_EDONE 0 /* stop this operation and return */ 879 #define SF_EDISC 1 /* discipline says it's ok */ 880 #define SF_ESTACK 2 /* stack was popped */ 881 #define SF_ECONT 3 /* can continue normally */ 882 883 #define SETLOCAL(f) ((f)->mode |= SF_LOCAL) 884 #define GETLOCAL(f,v) ((v) = ((f)->mode&SF_LOCAL), (f)->mode &= ~SF_LOCAL, (v)) 885 #define SFWRALL(f) ((f)->mode |= SF_RV) 886 #define SFISALL(f,v) ((((v) = (f)->mode&SF_RV) ? ((f)->mode &= ~SF_RV) : 0), \ 887 ((v) || ((f)->flags&(SF_SHARE|SF_APPENDWR|SF_WHOLE)) ) ) 888 #define SFSK(f,a,o,d) (SETLOCAL(f),sfsk(f,(Sfoff_t)a,o,d)) 889 #define SFRD(f,b,n,d) (SETLOCAL(f),sfrd(f,(Void_t*)b,n,d)) 890 #define SFWR(f,b,n,d) (SETLOCAL(f),sfwr(f,(Void_t*)b,n,d)) 891 #define SFSYNC(f) (SETLOCAL(f),sfsync(f)) 892 #define SFCLOSE(f) (SETLOCAL(f),sfclose(f)) 893 #define SFFLSBUF(f,n) (SETLOCAL(f),_sfflsbuf(f,n)) 894 #define SFFILBUF(f,n) (SETLOCAL(f),_sffilbuf(f,n)) 895 #define SFSETBUF(f,s,n) (SETLOCAL(f),sfsetbuf(f,s,n)) 896 #define SFWRITE(f,s,n) (SETLOCAL(f),sfwrite(f,s,n)) 897 #define SFREAD(f,s,n) (SETLOCAL(f),sfread(f,s,n)) 898 #define SFSEEK(f,p,t) (SETLOCAL(f),sfseek(f,p,t)) 899 #define SFNPUTC(f,c,n) (SETLOCAL(f),sfnputc(f,c,n)) 900 #define SFRAISE(f,e,d) (SETLOCAL(f),sfraise(f,e,d)) 901 902 /* lock/open a stream */ 903 #define SFMODE(f,l) ((f)->mode & ~(SF_RV|SF_RC|((l) ? SF_LOCK : 0)) ) 904 #define SFLOCK(f,l) (void)((f)->mode |= SF_LOCK, (f)->endr = (f)->endw = (f)->data) 905 #define _SFOPENRD(f) ((f)->endr = ((f)->flags&SF_MTSAFE) ? (f)->data : (f)->endb) 906 #define _SFOPENWR(f) ((f)->endw = ((f)->flags&(SF_MTSAFE|SF_LINE)) ? (f)->data : (f)->endb) 907 #define _SFOPEN(f) ((f)->mode == SF_READ ? _SFOPENRD(f) : \ 908 (f)->mode == SF_WRITE ? _SFOPENWR(f) : \ 909 ((f)->endw = (f)->endr = (f)->data) ) 910 #define SFOPEN(f,l) (void)((l) ? 0 : \ 911 ((f)->mode &= ~(SF_LOCK|SF_RC|SF_RV), _SFOPEN(f), 0) ) 912 913 /* check to see if the stream can be accessed */ 914 #define SFFROZEN(f) (((f)->mode&(SF_PUSH|SF_LOCK|SF_PEEK)) ? 1 : \ 915 !((f)->mode&SF_STDIO) ? 0 : \ 916 _Sfstdsync ? (*_Sfstdsync)(f) : (((f)->mode &= ~SF_STDIO),0) ) 917 918 919 /* set discipline code */ 920 #define SFDISC(f,dc,iof) \ 921 { Sfdisc_t* d; \ 922 if(!(dc)) \ 923 d = (dc) = (f)->disc; \ 924 else d = (f->bits&SF_DCDOWN) ? ((dc) = (dc)->disc) : (dc); \ 925 while(d && !(d->iof)) d = d->disc; \ 926 if(d) (dc) = d; \ 927 } 928 #define SFDCRD(f,buf,n,dc,rv) \ 929 { int dcdown = f->bits&SF_DCDOWN; f->bits |= SF_DCDOWN; \ 930 rv = (*dc->readf)(f,buf,n,dc); \ 931 if(!dcdown) f->bits &= ~SF_DCDOWN; \ 932 } 933 #define SFDCWR(f,buf,n,dc,rv) \ 934 { int dcdown = f->bits&SF_DCDOWN; f->bits |= SF_DCDOWN; \ 935 rv = (*dc->writef)(f,buf,n,dc); \ 936 if(!dcdown) f->bits &= ~SF_DCDOWN; \ 937 } 938 #define SFDCSK(f,addr,type,dc,rv) \ 939 { int dcdown = f->bits&SF_DCDOWN; f->bits |= SF_DCDOWN; \ 940 rv = (*dc->seekf)(f,addr,type,dc); \ 941 if(!dcdown) f->bits &= ~SF_DCDOWN; \ 942 } 943 944 /* fast peek of a stream */ 945 #define _SFAVAIL(f,s,n) ((n) = (f)->endb - ((s) = (f)->next) ) 946 #define SFRPEEK(f,s,n) (_SFAVAIL(f,s,n) > 0 ? (n) : \ 947 ((n) = SFFILBUF(f,-1), (s) = (f)->next, (n)) ) 948 #define SFWPEEK(f,s,n) (_SFAVAIL(f,s,n) > 0 ? (n) : \ 949 ((n) = SFFLSBUF(f,-1), (s) = (f)->next, (n)) ) 950 951 /* more than this for a line buffer, we might as well flush */ 952 #define HIFORLINE 128 953 954 /* string stream extent */ 955 #define SFSTRSIZE(f) { Sfoff_t s = (f)->next - (f)->data; \ 956 if(s > (f)->here) \ 957 { (f)->here = s; if(s > (f)->extent) (f)->extent = s; } \ 958 } 959 960 /* control flags for open() */ 961 #ifdef O_CREAT 962 #define _has_oflags 1 963 #else /* for example, research UNIX */ 964 #define _has_oflags 0 965 #define O_CREAT 004 966 #define O_TRUNC 010 967 #define O_APPEND 020 968 #define O_EXCL 040 969 970 #ifndef O_RDONLY 971 #define O_RDONLY 000 972 #endif 973 #ifndef O_WRONLY 974 #define O_WRONLY 001 975 #endif 976 #ifndef O_RDWR 977 #define O_RDWR 002 978 #endif 979 #endif /*O_CREAT*/ 980 981 #ifndef O_BINARY 982 #define O_BINARY 000 983 #endif 984 #ifndef O_TEXT 985 #define O_TEXT 000 986 #endif 987 #ifndef O_TEMPORARY 988 #define O_TEMPORARY 000 989 #endif 990 991 #define SF_RADIX 64 /* maximum integer conversion base */ 992 993 #if _PACKAGE_ast 994 #define SF_MAXINT INT_MAX 995 #define SF_MAXLONG LONG_MAX 996 #else 997 #define SF_MAXINT ((int)(((uint)~0) >> 1)) 998 #define SF_MAXLONG ((long)(((ulong)~0L) >> 1)) 999 #endif 1000 1001 #define SF_MAXCHAR ((uchar)(~0)) 1002 1003 /* floating point to ascii conversion */ 1004 #define SF_MAXEXP10 6 1005 #define SF_MAXPOW10 (1 << SF_MAXEXP10) 1006 #if !_ast_fltmax_double 1007 #define SF_FDIGITS 1024 /* max allowed fractional digits */ 1008 #define SF_IDIGITS (8*1024) /* max number of digits in int part */ 1009 #else 1010 #define SF_FDIGITS 256 /* max allowed fractional digits */ 1011 #define SF_IDIGITS 1024 /* max number of digits in int part */ 1012 #endif 1013 #define SF_MAXDIGITS (((SF_FDIGITS+SF_IDIGITS)/sizeof(int) + 1)*sizeof(int)) 1014 1015 /* tables for numerical translation */ 1016 #define _Sfpos10 (_Sftable.sf_pos10) 1017 #define _Sfneg10 (_Sftable.sf_neg10) 1018 #define _Sfdec (_Sftable.sf_dec) 1019 #define _Sfdigits (_Sftable.sf_digits) 1020 #define _Sfcvinitf (_Sftable.sf_cvinitf) 1021 #define _Sfcvinit (_Sftable.sf_cvinit) 1022 #define _Sffmtposf (_Sftable.sf_fmtposf) 1023 #define _Sffmtintf (_Sftable.sf_fmtintf) 1024 #define _Sfcv36 (_Sftable.sf_cv36) 1025 #define _Sfcv64 (_Sftable.sf_cv64) 1026 #define _Sftype (_Sftable.sf_type) 1027 #define _Sfieee (&_Sftable.sf_ieee) 1028 #define _Sffinf (_Sftable.sf_ieee.fltinf) 1029 #define _Sfdinf (_Sftable.sf_ieee.dblinf) 1030 #define _Sflinf (_Sftable.sf_ieee.ldblinf) 1031 #define _Sffnan (_Sftable.sf_ieee.fltnan) 1032 #define _Sfdnan (_Sftable.sf_ieee.dblnan) 1033 #define _Sflnan (_Sftable.sf_ieee.ldblnan) 1034 #define _Sffpow10 (_Sftable.sf_flt_pow10) 1035 #define _Sfdpow10 (_Sftable.sf_dbl_pow10) 1036 #define _Sflpow10 (_Sftable.sf_ldbl_pow10) 1037 typedef struct _sfieee_s Sfieee_t; 1038 struct _sfieee_s 1039 { float fltnan; /* float NAN */ 1040 float fltinf; /* float INF */ 1041 double dblnan; /* double NAN */ 1042 double dblinf; /* double INF */ 1043 Sfdouble_t ldblnan; /* Sfdouble_t NAN */ 1044 Sfdouble_t ldblinf; /* Sfdouble_t INF */ 1045 }; 1046 typedef struct _sftab_ 1047 { Sfdouble_t sf_pos10[SF_MAXEXP10]; /* positive powers of 10 */ 1048 Sfdouble_t sf_neg10[SF_MAXEXP10]; /* negative powers of 10 */ 1049 uchar sf_dec[200]; /* ascii reps of values < 100 */ 1050 char* sf_digits; /* digits for general bases */ 1051 int (*sf_cvinitf)(); /* initialization function */ 1052 int sf_cvinit; /* initialization state */ 1053 Fmtpos_t* (*sf_fmtposf)_ARG_((Sfio_t*,const char*,va_list,Sffmt_t*,int)); 1054 char* (*sf_fmtintf)_ARG_((const char*,int*)); 1055 float* sf_flt_pow10; /* float powers of 10 */ 1056 double* sf_dbl_pow10; /* double powers of 10 */ 1057 Sfdouble_t* sf_ldbl_pow10; /* Sfdouble_t powers of 10 */ 1058 uchar sf_cv36[SF_MAXCHAR+1]; /* conversion for base [2-36] */ 1059 uchar sf_cv64[SF_MAXCHAR+1]; /* conversion for base [37-64] */ 1060 uchar sf_type[SF_MAXCHAR+1]; /* conversion formats&types */ 1061 Sfieee_t sf_ieee; /* IEEE floating point constants*/ 1062 } Sftab_t; 1063 1064 /* thread-safe macro/function to initialize _Sfcv* conversion tables */ 1065 #define SFCVINIT() (_Sfcvinit ? 1 : (_Sfcvinit = (*_Sfcvinitf)()) ) 1066 1067 /* sfucvt() converts decimal integers to ASCII */ 1068 #define SFDIGIT(v,scale,digit) \ 1069 { if(v < 5*scale) \ 1070 if(v < 2*scale) \ 1071 if(v < 1*scale) \ 1072 { digit = '0'; } \ 1073 else { digit = '1'; v -= 1*scale; } \ 1074 else if(v < 3*scale) \ 1075 { digit = '2'; v -= 2*scale; } \ 1076 else if(v < 4*scale) \ 1077 { digit = '3'; v -= 3*scale; } \ 1078 else { digit = '4'; v -= 4*scale; } \ 1079 else if(v < 7*scale) \ 1080 if(v < 6*scale) \ 1081 { digit = '5'; v -= 5*scale; } \ 1082 else { digit = '6'; v -= 6*scale; } \ 1083 else if(v < 8*scale) \ 1084 { digit = '7'; v -= 7*scale; } \ 1085 else if(v < 9*scale) \ 1086 { digit = '8'; v -= 8*scale; } \ 1087 else { digit = '9'; v -= 9*scale; } \ 1088 } 1089 #define sfucvt(v,s,n,list,type,utype) \ 1090 { while((utype)v >= 10000) \ 1091 { n = v; v = (type)(((utype)v)/10000); \ 1092 n = (type)((utype)n - ((utype)v)*10000); \ 1093 s -= 4; SFDIGIT(n,1000,s[0]); SFDIGIT(n,100,s[1]); \ 1094 s[2] = *(list = (char*)_Sfdec + (n <<= 1)); s[3] = *(list+1); \ 1095 } \ 1096 if(v < 100) \ 1097 { if(v < 10) \ 1098 { s -= 1; s[0] = (char)('0'+v); \ 1099 } else \ 1100 { s -= 2; s[0] = *(list = (char*)_Sfdec + (v <<= 1)); s[1] = *(list+1); \ 1101 } \ 1102 } else \ 1103 { if(v < 1000) \ 1104 { s -= 3; SFDIGIT(v,100,s[0]); \ 1105 s[1] = *(list = (char*)_Sfdec + (v <<= 1)); s[2] = *(list+1); \ 1106 } else \ 1107 { s -= 4; SFDIGIT(v,1000,s[0]); SFDIGIT(v,100,s[1]); \ 1108 s[2] = *(list = (char*)_Sfdec + (v <<= 1)); s[3] = *(list+1); \ 1109 } \ 1110 } \ 1111 } 1112 1113 /* handy functions */ 1114 #undef min 1115 #undef max 1116 #define min(x,y) ((x) < (y) ? (x) : (y)) 1117 #define max(x,y) ((x) > (y) ? (x) : (y)) 1118 1119 /* fast functions for memory copy and memory clear */ 1120 #if _PACKAGE_ast 1121 #define memclear(s,n) memzero(s,n) 1122 #else 1123 #if _lib_bcopy && !_lib_memcpy 1124 #define memcpy(to,fr,n) bcopy((fr),(to),(n)) 1125 #endif 1126 #if _lib_bzero && !_lib_memset 1127 #define memclear(s,n) bzero((s),(n)) 1128 #else 1129 #define memclear(s,n) memset((s),'\0',(n)) 1130 #endif 1131 #endif /*_PACKAGE_ast*/ 1132 1133 /* note that MEMCPY advances the associated pointers */ 1134 #define MEMCPY(to,fr,n) \ 1135 switch(n) \ 1136 { default : memcpy((Void_t*)to,(Void_t*)fr,n); to += n; fr += n; break; \ 1137 case 7 : *to++ = *fr++; \ 1138 case 6 : *to++ = *fr++; \ 1139 case 5 : *to++ = *fr++; \ 1140 case 4 : *to++ = *fr++; \ 1141 case 3 : *to++ = *fr++; \ 1142 case 2 : *to++ = *fr++; \ 1143 case 1 : *to++ = *fr++; \ 1144 } 1145 #define MEMSET(s,c,n) \ 1146 switch(n) \ 1147 { default : memset((Void_t*)s,(int)c,n); s += n; break; \ 1148 case 7 : *s++ = c; \ 1149 case 6 : *s++ = c; \ 1150 case 5 : *s++ = c; \ 1151 case 4 : *s++ = c; \ 1152 case 3 : *s++ = c; \ 1153 case 2 : *s++ = c; \ 1154 case 1 : *s++ = c; \ 1155 } 1156 1157 _BEGIN_EXTERNS_ 1158 1159 extern Sftab_t _Sftable; 1160 1161 extern int _sfpopen _ARG_((Sfio_t*, int, int, int)); 1162 extern int _sfpclose _ARG_((Sfio_t*)); 1163 extern int _sfexcept _ARG_((Sfio_t*, int, ssize_t, Sfdisc_t*)); 1164 extern Sfrsrv_t* _sfrsrv _ARG_((Sfio_t*, ssize_t)); 1165 extern int _sfsetpool _ARG_((Sfio_t*)); 1166 extern char* _sfcvt _ARG_((Void_t*,char*,size_t,int,int*,int*,int*,int)); 1167 extern char** _sfgetpath _ARG_((char*)); 1168 1169 #if _BLD_sfio && defined(__EXPORT__) 1170 #define extern __EXPORT__ 1171 #endif 1172 #if !_BLD_sfio && defined(__IMPORT__) 1173 #define extern extern __IMPORT__ 1174 #endif 1175 1176 extern Sfextern_t _Sfextern; 1177 1178 extern int _sfmode _ARG_((Sfio_t*, int, int)); 1179 extern int _sftype _ARG_((const char*, int*, int*)); 1180 1181 #undef extern 1182 1183 #ifndef errno 1184 extern int errno; 1185 #endif 1186 1187 /* for portable encoding of double values */ 1188 #ifndef frexpl 1189 #if _ast_fltmax_double 1190 #define frexpl frexp 1191 #endif 1192 #if !__STDC__ 1193 extern Sfdouble_t frexpl _ARG_((Sfdouble_t, int*)); 1194 #endif 1195 #endif 1196 #ifndef ldexpl 1197 #if _ast_fltmax_double 1198 #define ldexpl ldexp 1199 #endif 1200 #if !__STDC__ 1201 extern Sfdouble_t ldexpl _ARG_((Sfdouble_t, int)); 1202 #endif 1203 #endif 1204 1205 #if !_PACKAGE_ast 1206 1207 #if !__STDC__ && !_hdr_stdlib 1208 extern void abort _ARG_((void)); 1209 extern int atexit _ARG_((void(*)(void))); 1210 extern char* getenv _ARG_((const char*)); 1211 extern void* malloc _ARG_((size_t)); 1212 extern void* realloc _ARG_((void*, size_t)); 1213 extern void free _ARG_((void*)); 1214 extern size_t strlen _ARG_((const char*)); 1215 extern char* strcpy _ARG_((char*, const char*)); 1216 1217 extern Void_t* memset _ARG_((void*, int, size_t)); 1218 extern Void_t* memchr _ARG_((const void*, int, size_t)); 1219 extern Void_t* memccpy _ARG_((void*, const void*, int, size_t)); 1220 #ifndef memcpy 1221 extern Void_t* memcpy _ARG_((void*, const void*, size_t)); 1222 #endif 1223 #if !defined(strtod) 1224 extern double strtod _ARG_((const char*, char**)); 1225 #endif 1226 #if !defined(remove) 1227 extern int sysremovef _ARG_((const char*)); 1228 #endif 1229 #endif /* !__STDC__ && !_hdr_stdlib */ 1230 1231 #if !_hdr_unistd 1232 #if _proto_open && __cplusplus 1233 extern int sysopenf _ARG_((const char*, int, ...)); 1234 #endif 1235 extern int sysclosef _ARG_((int)); 1236 extern ssize_t sysreadf _ARG_((int, void*, size_t)); 1237 extern ssize_t syswritef _ARG_((int, const void*, size_t)); 1238 extern sfoff_t syslseekf _ARG_((int, sfoff_t, int)); 1239 extern int sysdupf _ARG_((int)); 1240 extern int syspipef _ARG_((int*)); 1241 extern int sysaccessf _ARG_((const char*, int)); 1242 extern int sysremovef _ARG_((const char*)); 1243 extern int sysfstatf _ARG_((int, sfstat_t*)); 1244 extern int sysstatf _ARG_((const char*, sfstat_t*)); 1245 1246 extern int isatty _ARG_((int)); 1247 1248 extern int wait _ARG_((int*)); 1249 extern uint sleep _ARG_((uint)); 1250 extern int execl _ARG_((const char*, const char*,...)); 1251 extern int execv _ARG_((const char*, char**)); 1252 #if !defined(fork) 1253 extern int fork _ARG_((void)); 1254 #endif 1255 #if _lib_unlink 1256 extern int unlink _ARG_((const char*)); 1257 #endif 1258 1259 #endif /*_hdr_unistd*/ 1260 1261 #if _lib_bcopy && !_proto_bcopy 1262 extern void bcopy _ARG_((const void*, void*, size_t)); 1263 #endif 1264 #if _lib_bzero && !_proto_bzero 1265 extern void bzero _ARG_((void*, size_t)); 1266 #endif 1267 1268 extern time_t time _ARG_((time_t*)); 1269 extern int waitpid _ARG_((int,int*,int)); 1270 extern void _exit _ARG_((int)); 1271 typedef int(* Onexit_f)_ARG_((void)); 1272 extern Onexit_f onexit _ARG_((Onexit_f)); 1273 1274 #if _lib_vfork && !_hdr_vfork && !_sys_vfork 1275 extern pid_t vfork _ARG_((void)); 1276 #endif /*_lib_vfork*/ 1277 1278 #if _lib_poll 1279 #if _lib_poll_fd_1 1280 extern int poll _ARG_((struct pollfd*, ulong, int)); 1281 #else 1282 extern int poll _ARG_((ulong, struct pollfd*, int)); 1283 #endif 1284 #endif /*_lib_poll*/ 1285 1286 #endif /* _PACKAGE_ast */ 1287 1288 _END_EXTERNS_ 1289 1290 #endif /*_SFHDR_H*/ 1291