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Diffstat (limited to 'mit-pthreads/include/stdio.h')
| -rw-r--r-- | mit-pthreads/include/stdio.h | 371 |
1 files changed, 371 insertions, 0 deletions
diff --git a/mit-pthreads/include/stdio.h b/mit-pthreads/include/stdio.h new file mode 100644 index 00000000000..538d4685f3f --- /dev/null +++ b/mit-pthreads/include/stdio.h @@ -0,0 +1,371 @@ +/* ==== stdio.h ============================================================ + * Copyright (c) 1990 The Regents of the University of California. + * Copyright (c) 1993 by Chris Provenzano, proven@mit.edu + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: @(#)stdio.h 5.17 (Berkeley) 6/3/91 + * $Id$ + */ + +#ifndef _STDIO_H_ +#define _STDIO_H_ + +#include <sys/cdefs.h> +#include <pthread/types.h> +#include <pthread/posix.h> +#include <sys/__stdio.h> + +#ifndef NULL +#define NULL 0 +#endif + +#define _FSTDIO /* Define for new stdio with functions. */ + +/* + * NB: to fit things in six character monocase externals, the stdio + * code uses the prefix `__s' for stdio objects, typically followed + * by a three-character attempt at a mnemonic. + */ + +/* stdio buffers */ +struct __sbuf { + unsigned char *_base; + int _size; +}; + +/* + * stdio state variables. + * + * The following always hold: + * + * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR), + * _lbfsize is -_bf._size, else _lbfsize is 0 + * if _flags&__SRD, _w is 0 + * if _flags&__SWR, _r is 0 + * + * This ensures that the getc and putc macros (or inline functions) never + * try to write or read from a file that is in `read' or `write' mode. + * (Moreover, they can, and do, automatically switch from read mode to + * write mode, and back, on "r+" and "w+" files.) + * + * _lbfsize is used only to make the inline line-buffered output stream + * code as compact as possible. + * + * _ub, _up, and _ur are used when ungetc() pushes back more characters + * than fit in the current _bf, or when ungetc() pushes back a character + * that does not match the previous one in _bf. When this happens, + * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff + * _ub._base!=NULL) and _up and _ur save the current values of _p and _r. + */ +typedef struct __sFILE { + unsigned char *_p; /* current position in (some) buffer */ + int _r; /* read space left for getc() */ + int _w; /* write space left for putc() */ + short _flags; /* flags, below; this FILE is free if 0 */ + short _file; /* fileno, if Unix descriptor, else -1 */ + struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ + int _lbfsize; /* 0 or -_bf._size, for inline putc */ + + /* separate buffer for long sequences of ungetc() */ + struct __sbuf _ub; /* ungetc buffer */ + unsigned char *_up; /* saved _p when _p is doing ungetc data */ + int _ur; /* saved _r when _r is counting ungetc data */ + + /* tricks to meet minimum requirements even when malloc() fails */ + unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ + unsigned char _nbuf[1]; /* guarantee a getc() buffer */ + + /* separate buffer for fgetline() when line crosses buffer boundary */ + struct __sbuf _lb; /* buffer for fgetline() */ + + /* Unix stdio files get aligned to block boundaries on fseek() */ + int _blksize; /* stat.st_blksize (may be != _bf._size) */ + int _offset; /* current lseek offset */ +} FILE; + +__BEGIN_DECLS +extern FILE __sF[]; +__END_DECLS + +#define __SLBF 0x0001 /* line buffered */ +#define __SNBF 0x0002 /* unbuffered */ +#define __SRD 0x0004 /* OK to read */ +#define __SWR 0x0008 /* OK to write */ + /* RD and WR are never simultaneously asserted */ +#define __SRW 0x0010 /* open for reading & writing */ +#define __SEOF 0x0020 /* found EOF */ +#define __SERR 0x0040 /* found error */ +#define __SMBF 0x0080 /* _buf is from malloc */ +#define __SAPP 0x0100 /* fdopen()ed in append mode */ +#define __SSTR 0x0200 /* this is an sprintf/snprintf string */ +#define __SOPT 0x0400 /* do fseek() optimisation */ +#define __SNPT 0x0800 /* do not do fseek() optimisation */ +#define __SOFF 0x1000 /* set iff _offset is in fact correct */ +#define __SMOD 0x2000 /* true => fgetline modified _p text */ + +/* + * The following three definitions are for ANSI C, which took them + * from System V, which brilliantly took internal interface macros and + * made them official arguments to setvbuf(), without renaming them. + * Hence, these ugly _IOxxx names are *supposed* to appear in user code. + * + * Although numbered as their counterparts above, the implementation + * does not rely on this. + */ +#define _IOFBF 0 /* setvbuf should set fully buffered */ +#define _IOLBF 1 /* setvbuf should set line buffered */ +#define _IONBF 2 /* setvbuf should set unbuffered */ + +#define BUFSIZ 1024 /* size of buffer used by setbuf */ +#define EOF (-1) + +/* + * FOPEN_MAX is a minimum maximum, and should be the number of descriptors + * that the kernel can provide without allocation of a resource that can + * fail without the process sleeping. Do not use this for anything. + */ +#define FOPEN_MAX 20 /* must be <= OPEN_MAX <sys/syslimits.h> */ +#define FILENAME_MAX 1024 /* must be <= PATH_MAX <sys/syslimits.h> */ + +/* System V/ANSI C; this is the wrong way to do this, do *not* use these. */ +#ifndef _ANSI_SOURCE +#define P_tmpdir "/var/tmp/" +#endif +#define L_tmpnam 1024 /* XXX must be == PATH_MAX */ +#ifndef TMP_MAX +#define TMP_MAX 308915776 +#endif + +#ifndef SEEK_SET +#define SEEK_SET 0 /* set file offset to offset */ +#endif +#ifndef SEEK_CUR +#define SEEK_CUR 1 /* set file offset to current plus offset */ +#endif +#ifndef SEEK_END +#define SEEK_END 2 /* set file offset to EOF plus offset */ +#endif + +#define stdin (&__sF[0]) +#define stdout (&__sF[1]) +#define stderr (&__sF[2]) + +/* + * Functions defined in ANSI C standard. + */ +__BEGIN_DECLS +void clearerr __P_((FILE *)); +int fclose __P_((FILE *)); +int feof __P_((FILE *)); +int ferror __P_((FILE *)); +int fflush __P_((FILE *)); +int fgetc __P_((FILE *)); +int fgetpos __P_((FILE *, fpos_t *)); +char * fgets __P_((char *, size_t, FILE *)); +FILE * fopen __P_((const char *, const char *)); +int fprintf __P_((FILE *, const char *, ...)); +int fputc __P_((int, FILE *)); +int fputs __P_((const char *, FILE *)); +size_t fread __P_((void *, size_t, size_t, FILE *)); +FILE * freopen __P_((const char *, const char *, FILE *)); +int fscanf __P_((FILE *, const char *, ...)); +int fseek __P_((FILE *, long, int)); +int fsetpos __P_((FILE *, const fpos_t *)); +long ftell __P_((const FILE *)); +size_t fwrite __P_((const void *, size_t, size_t, FILE *)); +int getc __P_((FILE *)); +int getchar __P_((void)); +char * gets __P_((char *)); + +#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) +extern int sys_nerr; /* perror(3) external variables */ +/* Under NetBSD and BSD 4.4, at least, this is expected to be a const + array of pointers to const. If you take `const' back out of this + declaration, please make it conditional on __NetBSD__ and bsd4_4. */ +#ifdef HAVE_SYS_ERRLIST_WITHOUT_CONST +extern char *sys_errlist[]; +#else +extern const char *const sys_errlist[]; +#endif +#endif + +void perror __P_((const char *)); +int printf __P_((const char *, ...)); +int putc __P_((int, FILE *)); +int putchar __P_((int)); +int puts __P_((const char *)); +int remove __P_((const char *)); +int rename __P_((const char *, const char *)); +void rewind __P_((FILE *)); +int scanf __P_((const char *, ...)); +void setbuf __P_((FILE *, char *)); +int setvbuf __P_((FILE *, char *, int, size_t)); +int sprintf __P_((char *, const char *, ...)); +int sscanf __P_((const char *, const char *, ...)); +FILE * tmpfile __P_((void)); +char * tmpnam __P_((char *)); +int ungetc __P_((int, FILE *)); +int vfprintf __P_((FILE *, const char *, pthread_va_list)); +int vprintf __P_((const char *, pthread_va_list)); +int vsprintf __P_((char *, const char *, pthread_va_list)); +char *mprintf __P_((const char *, ...)); +char *vmprintf __P_((const char *, pthread_va_list)); +__END_DECLS + +/* + * Functions defined in POSIX 1003.1. + */ +#ifndef _ANSI_SOURCE +#define L_ctermid 1024 /* size for ctermid(); PATH_MAX */ +#define L_cuserid 9 /* size for cuserid(); UT_NAMESIZE + 1 */ + +__BEGIN_DECLS +char * ctermid __P_((char *)); +char * cuserid __P_((char *)); +FILE * fdopen __P_((int, const char *)); +int fileno __P_((FILE *)); +__END_DECLS +#endif /* not ANSI */ + +/* + * Functions defined in POSIX 1003.4a. (1c) + */ +#ifndef _ANSI_SOURCE +__BEGIN_DECLS +void flockfile __P_((FILE *)); +void funlockfile __P_((FILE *)); +int ftrylockfile __P_((FILE *)); +__END_DECLS +#endif /* not ANSI */ + +/* + * Routines that are purely local. + */ +#if !defined (_ANSI_SOURCE) && !defined(_POSIX_SOURCE) +__BEGIN_DECLS +char *fgetline __P_((FILE *, size_t *)); +int fpurge __P_((FILE *)); +int getw __P_((FILE *)); +int pclose __P_((FILE *)); +FILE *popen __P_((const char *, const char *)); +int putw __P_((int, FILE *)); +void setbuffer __P_((FILE *, char *, int)); +int setlinebuf __P_((FILE *)); +char *tempnam __P_((const char *, const char *)); +int snprintf __P_((char *, size_t, const char *, ...)); +int vsnprintf __P_((char *, size_t, const char *, pthread_va_list)); +int vscanf __P_((const char *, pthread_va_list)); +int vsscanf __P_((const char *, const char *, pthread_va_list)); +__END_DECLS + +/* + * This is a #define because the function is used internally and + * (unlike vfscanf) the name __svfscanf is guaranteed not to collide + * with a user function when _ANSI_SOURCE or _POSIX_SOURCE is defined. + */ +#define vfscanf __svfscanf + +/* + * Stdio function-access interface. + */ +__BEGIN_DECLS +FILE *funopen __P_((const void *, + int (*)(void *, char *, int), + int (*)(void *, const char *, int), + fpos_t (*)(void *, fpos_t, int), + int (*)(void *))); +__END_DECLS +#define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0) +#define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0) +#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */ + +/* + * Functions internal to the implementation. + */ +__BEGIN_DECLS +int __srget __P_((FILE *)); +int __svfscanf __P_((FILE *, const char *, pthread_va_list)); +int __swbuf __P_((int, FILE *)); +__END_DECLS + +/* + * The __sfoo macros are here so that we can + * define function versions in the C library. + */ +#define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++)) + +__BEGIN_DECLS +int __getc __P_((FILE *)); +__END_DECLS + +#define getc(fp) __getc(fp) +#define getchar() getc(stdin) +#define getc_unlocked(fp) __sgetc(fp) +#define getchar_unlocked() getc_unlocked(stdin) + +#ifdef __CAN_DO_EXTERN_INLINE +__INLINE int __sputc(int _c, FILE *_p) +{ + if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n')) + return (*_p->_p++ = _c); + else + return (__swbuf(_c, _p)); +} +#else +__BEGIN_DECLS +int __sputc __P_((int, FILE *)); +__END_DECLS +#endif + +__BEGIN_DECLS +int __putc __P_((int, FILE *)); +__END_DECLS + +#define putc(x, fp) __putc(x, fp) +#define putchar(x) putc(x, stdout) +#define putc_unlocked(x, fp) __sputc(x, fp) +#define putchar_unlocked(x) putc_unlocked(x, stdout) + +#define __sfeof(p) (((p)->_flags & __SEOF) != 0) +#define __sferror(p) (((p)->_flags & __SERR) != 0) +#define __sfileno(p) ((p)->_file) + +#define feof(p) __sfeof(p) +#define ferror(p) __sferror(p) + +#ifndef _ANSI_SOURCE +#define fileno(p) __sfileno(p) +#endif + +#endif |