| stdio.h (178287) | stdio.h (178721) |
|---|---|
| 1/*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Chris Torek. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 20 unchanged lines hidden (view full) --- 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)stdio.h 8.5 (Berkeley) 4/29/95 | 1/*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Chris Torek. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 20 unchanged lines hidden (view full) --- 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)stdio.h 8.5 (Berkeley) 4/29/95 |
| 37 * $FreeBSD: head/include/stdio.h 178287 2008-04-17 22:17:54Z jhb $ | 37 * $FreeBSD: head/include/stdio.h 178721 2008-05-02 15:25:07Z jhb $ |
| 38 */ 39 40#ifndef _STDIO_H_ 41#define _STDIO_H_ 42 43#include <sys/cdefs.h> 44#include <sys/_null.h> 45#include <sys/_types.h> --- 9 unchanged lines hidden (view full) --- 55#ifndef _VA_LIST_DECLARED 56typedef __va_list va_list; 57#define _VA_LIST_DECLARED 58#endif 59#endif 60 61#define _FSTDIO /* Define for new stdio with functions. */ 62 | 38 */ 39 40#ifndef _STDIO_H_ 41#define _STDIO_H_ 42 43#include <sys/cdefs.h> 44#include <sys/_null.h> 45#include <sys/_types.h> --- 9 unchanged lines hidden (view full) --- 55#ifndef _VA_LIST_DECLARED 56typedef __va_list va_list; 57#define _VA_LIST_DECLARED 58#endif 59#endif 60 61#define _FSTDIO /* Define for new stdio with functions. */ 62 |
| 63/* 64 * NB: to fit things in six character monocase externals, the stdio 65 * code uses the prefix `__s' for stdio objects, typically followed 66 * by a three-character attempt at a mnemonic. 67 */ | 63struct __sFILE; 64typedef struct __sFILE FILE; |
| 68 | 65 |
| 69/* stdio buffers */ 70struct __sbuf { 71 unsigned char *_base; 72 int _size; 73}; 74 75/* 76 * stdio state variables. 77 * 78 * The following always hold: 79 * 80 * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR), 81 * _lbfsize is -_bf._size, else _lbfsize is 0 82 * if _flags&__SRD, _w is 0 83 * if _flags&__SWR, _r is 0 84 * 85 * This ensures that the getc and putc macros (or inline functions) never 86 * try to write or read from a file that is in `read' or `write' mode. 87 * (Moreover, they can, and do, automatically switch from read mode to 88 * write mode, and back, on "r+" and "w+" files.) 89 * 90 * _lbfsize is used only to make the inline line-buffered output stream 91 * code as compact as possible. 92 * 93 * _ub, _up, and _ur are used when ungetc() pushes back more characters 94 * than fit in the current _bf, or when ungetc() pushes back a character 95 * that does not match the previous one in _bf. When this happens, 96 * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff 97 * _ub._base!=NULL) and _up and _ur save the current values of _p and _r. 98 * 99 * Certain members of __sFILE are accessed directly via macros or 100 * inline functions. To preserve ABI compat, these members must not 101 * be disturbed. These members are marked below with (*). 102 */ 103typedef struct __sFILE { 104 unsigned char *_p; /* (*) current position in (some) buffer */ 105 int _r; /* (*) read space left for getc() */ 106 int _w; /* (*) write space left for putc() */ 107 short _flags; /* (*) flags, below; this FILE is free if 0 */ 108 short _file; /* (*) fileno, if Unix descriptor, else -1 */ 109 struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ 110 int _lbfsize; /* (*) 0 or -_bf._size, for inline putc */ 111 112 /* operations */ 113 void *_cookie; /* cookie passed to io functions */ 114 int (*_close)(void *); 115 int (*_read)(void *, char *, int); 116 fpos_t (*_seek)(void *, fpos_t, int); 117 int (*_write)(void *, const char *, int); 118 119 /* separate buffer for long sequences of ungetc() */ 120 struct __sbuf _ub; /* ungetc buffer */ 121 unsigned char *_up; /* saved _p when _p is doing ungetc data */ 122 int _ur; /* saved _r when _r is counting ungetc data */ 123 124 /* tricks to meet minimum requirements even when malloc() fails */ 125 unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ 126 unsigned char _nbuf[1]; /* guarantee a getc() buffer */ 127 128 /* separate buffer for fgetln() when line crosses buffer boundary */ 129 struct __sbuf _lb; /* buffer for fgetln() */ 130 131 /* Unix stdio files get aligned to block boundaries on fseek() */ 132 int _blksize; /* stat.st_blksize (may be != _bf._size) */ 133 fpos_t _offset; /* current lseek offset */ 134 135 struct pthread_mutex *_fl_mutex; /* used for MT-safety */ 136 struct pthread *_fl_owner; /* current owner */ 137 int _fl_count; /* recursive lock count */ 138 int _orientation; /* orientation for fwide() */ 139 __mbstate_t _mbstate; /* multibyte conversion state */ 140} FILE; 141 | |
| 142#ifndef _STDSTREAM_DECLARED 143__BEGIN_DECLS 144extern FILE *__stdinp; 145extern FILE *__stdoutp; 146extern FILE *__stderrp; 147__END_DECLS 148#define _STDSTREAM_DECLARED 149#endif 150 | 66#ifndef _STDSTREAM_DECLARED 67__BEGIN_DECLS 68extern FILE *__stdinp; 69extern FILE *__stdoutp; 70extern FILE *__stderrp; 71__END_DECLS 72#define _STDSTREAM_DECLARED 73#endif 74 |
| 151#define __SLBF 0x0001 /* line buffered */ 152#define __SNBF 0x0002 /* unbuffered */ 153#define __SRD 0x0004 /* OK to read */ 154#define __SWR 0x0008 /* OK to write */ 155 /* RD and WR are never simultaneously asserted */ 156#define __SRW 0x0010 /* open for reading & writing */ 157#define __SEOF 0x0020 /* found EOF */ 158#define __SERR 0x0040 /* found error */ 159#define __SMBF 0x0080 /* _buf is from malloc */ 160#define __SAPP 0x0100 /* fdopen()ed in append mode */ 161#define __SSTR 0x0200 /* this is an sprintf/snprintf string */ 162#define __SOPT 0x0400 /* do fseek() optimization */ 163#define __SNPT 0x0800 /* do not do fseek() optimization */ 164#define __SOFF 0x1000 /* set iff _offset is in fact correct */ 165#define __SMOD 0x2000 /* true => fgetln modified _p text */ 166#define __SALC 0x4000 /* allocate string space dynamically */ 167#define __SIGN 0x8000 /* ignore this file in _fwalk */ 168 | |
| 169/* 170 * The following three definitions are for ANSI C, which took them 171 * from System V, which brilliantly took internal interface macros and 172 * made them official arguments to setvbuf(), without renaming them. 173 * Hence, these ugly _IOxxx names are *supposed* to appear in user code. | 75/* 76 * The following three definitions are for ANSI C, which took them 77 * from System V, which brilliantly took internal interface macros and 78 * made them official arguments to setvbuf(), without renaming them. 79 * Hence, these ugly _IOxxx names are *supposed* to appear in user code. |
| 174 * 175 * Although numbered as their counterparts above, the implementation 176 * does not rely on this. | |
| 177 */ 178#define _IOFBF 0 /* setvbuf should set fully buffered */ 179#define _IOLBF 1 /* setvbuf should set line buffered */ 180#define _IONBF 2 /* setvbuf should set unbuffered */ 181 182#define BUFSIZ 1024 /* size of buffer used by setbuf */ 183#define EOF (-1) 184 --- 111 unchanged lines hidden (view full) --- 296#endif 297 298#if __POSIX_VISIBLE >= 199506 299int ftrylockfile(FILE *); 300void flockfile(FILE *); 301void funlockfile(FILE *); 302 303/* | 80 */ 81#define _IOFBF 0 /* setvbuf should set fully buffered */ 82#define _IOLBF 1 /* setvbuf should set line buffered */ 83#define _IONBF 2 /* setvbuf should set unbuffered */ 84 85#define BUFSIZ 1024 /* size of buffer used by setbuf */ 86#define EOF (-1) 87 --- 111 unchanged lines hidden (view full) --- 199#endif 200 201#if __POSIX_VISIBLE >= 199506 202int ftrylockfile(FILE *); 203void flockfile(FILE *); 204void funlockfile(FILE *); 205 206/* |
| 304 * These are normally used through macros as defined below, but POSIX 305 * requires functions as well. | 207 * See ISO/IEC 9945-1 ANSI/IEEE Std 1003.1 Second Edition 1996-07-12 208 * B.8.2.7 for the rationale behind the *_unlocked() functions. |
| 306 */ 307int getc_unlocked(FILE *); 308int getchar_unlocked(void); 309int putc_unlocked(int, FILE *); 310int putchar_unlocked(int); 311#endif 312#if __BSD_VISIBLE 313void clearerr_unlocked(FILE *); --- 66 unchanged lines hidden (view full) --- 380void *mmap(void *, size_t, int, int, int, __off_t); 381#endif 382#ifndef _TRUNCATE_DECLARED 383#define _TRUNCATE_DECLARED 384int truncate(const char *, __off_t); 385#endif 386#endif /* __BSD_VISIBLE */ 387 | 209 */ 210int getc_unlocked(FILE *); 211int getchar_unlocked(void); 212int putc_unlocked(int, FILE *); 213int putchar_unlocked(int); 214#endif 215#if __BSD_VISIBLE 216void clearerr_unlocked(FILE *); --- 66 unchanged lines hidden (view full) --- 283void *mmap(void *, size_t, int, int, int, __off_t); 284#endif 285#ifndef _TRUNCATE_DECLARED 286#define _TRUNCATE_DECLARED 287int truncate(const char *, __off_t); 288#endif 289#endif /* __BSD_VISIBLE */ 290 |
| 388/* 389 * Functions internal to the implementation. 390 */ 391int __srget(FILE *); 392int __swbuf(int, FILE *); 393 394/* 395 * The __sfoo macros are here so that we can 396 * define function versions in the C library. 397 */ 398#define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++)) 399#if defined(__GNUC__) && defined(__STDC__) 400static __inline int __sputc(int _c, FILE *_p) { 401 if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n')) 402 return (*_p->_p++ = _c); 403 else 404 return (__swbuf(_c, _p)); 405} 406#else 407/* 408 * This has been tuned to generate reasonable code on the vax using pcc. 409 */ 410#define __sputc(c, p) \ 411 (--(p)->_w < 0 ? \ 412 (p)->_w >= (p)->_lbfsize ? \ 413 (*(p)->_p = (c)), *(p)->_p != '\n' ? \ 414 (int)*(p)->_p++ : \ 415 __swbuf('\n', p) : \ 416 __swbuf((int)(c), p) : \ 417 (*(p)->_p = (c), (int)*(p)->_p++)) 418#endif 419 420#define __sfeof(p) (((p)->_flags & __SEOF) != 0) 421#define __sferror(p) (((p)->_flags & __SERR) != 0) 422#define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF))) 423#define __sfileno(p) ((p)->_file) 424 425extern int __isthreaded; 426 427#define feof(p) (!__isthreaded ? __sfeof(p) : (feof)(p)) 428#define ferror(p) (!__isthreaded ? __sferror(p) : (ferror)(p)) 429#define clearerr(p) (!__isthreaded ? __sclearerr(p) : (clearerr)(p)) 430 431#if __POSIX_VISIBLE 432#define fileno(p) (!__isthreaded ? __sfileno(p) : (fileno)(p)) 433#endif 434 435#define getc(fp) (!__isthreaded ? __sgetc(fp) : (getc)(fp)) 436#define putc(x, fp) (!__isthreaded ? __sputc(x, fp) : (putc)(x, fp)) 437 438#define getchar() getc(stdin) 439#define putchar(x) putc(x, stdout) 440 | |
| 441#if __BSD_VISIBLE | 291#if __BSD_VISIBLE |
| 442/* 443 * See ISO/IEC 9945-1 ANSI/IEEE Std 1003.1 Second Edition 1996-07-12 444 * B.8.2.7 for the rationale behind the *_unlocked() macros. 445 */ 446#define feof_unlocked(p) __sfeof(p) 447#define ferror_unlocked(p) __sferror(p) 448#define clearerr_unlocked(p) __sclearerr(p) 449#define fileno_unlocked(p) __sfileno(p) 450#endif 451#if __POSIX_VISIBLE >= 199506 452#define getc_unlocked(fp) __sgetc(fp) 453#define putc_unlocked(x, fp) __sputc(x, fp) 454 455#define getchar_unlocked() getc_unlocked(stdin) 456#define putchar_unlocked(x) putc_unlocked(x, stdout) 457#endif 458 459#if __BSD_VISIBLE | |
| 460int renameat(int, const char *, int, const char *); 461#endif 462__END_DECLS 463#endif /* !_STDIO_H_ */ | 292int renameat(int, const char *, int, const char *); 293#endif 294__END_DECLS 295#endif /* !_STDIO_H_ */ |