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authorIgor Pashev <pashev.igor@gmail.com>2012-06-24 22:28:35 +0000
committerIgor Pashev <pashev.igor@gmail.com>2012-06-24 22:28:35 +0000
commit3950ffe2a485479f6561c27364d3d7df5a21d124 (patch)
tree468c6e14449d1b1e279222ec32f676b0311917d2 /src/lib/libast/include/sfio.h
downloadksh-upstream.tar.gz
Imported Upstream version 93u+upstream
Diffstat (limited to 'src/lib/libast/include/sfio.h')
-rw-r--r--src/lib/libast/include/sfio.h457
1 files changed, 457 insertions, 0 deletions
diff --git a/src/lib/libast/include/sfio.h b/src/lib/libast/include/sfio.h
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+++ b/src/lib/libast/include/sfio.h
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+/***********************************************************************
+* *
+* This software is part of the ast package *
+* Copyright (c) 1985-2011 AT&T Intellectual Property *
+* and is licensed under the *
+* Eclipse Public License, Version 1.0 *
+* by AT&T Intellectual Property *
+* *
+* A copy of the License is available at *
+* http://www.eclipse.org/org/documents/epl-v10.html *
+* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
+* *
+* Information and Software Systems Research *
+* AT&T Research *
+* Florham Park NJ *
+* *
+* Glenn Fowler <gsf@research.att.com> *
+* David Korn <dgk@research.att.com> *
+* Phong Vo <kpv@research.att.com> *
+* *
+***********************************************************************/
+#ifndef _SFIO_H
+#define _SFIO_H 1
+
+#define SFIO_VERSION 20090915L
+
+/* Public header file for the sfio library
+**
+** Written by Kiem-Phong Vo
+*/
+
+typedef struct _sfio_s Sfio_t;
+typedef struct _sfdisc_s Sfdisc_t;
+
+#if defined(_AST_STD_H) || defined(_PACKAGE_ast) && defined(_SFIO_PRIVATE)
+#include <ast_std.h>
+#else
+#include <ast_common.h>
+#endif /* _PACKAGE_ast */
+
+/* Sfoff_t should be large enough for largest file address */
+#define Sfoff_t intmax_t
+#define Sflong_t intmax_t
+#define Sfulong_t uintmax_t
+#define Sfdouble_t _ast_fltmax_t
+
+typedef ssize_t (*Sfread_f)_ARG_((Sfio_t*, Void_t*, size_t, Sfdisc_t*));
+typedef ssize_t (*Sfwrite_f)_ARG_((Sfio_t*, const Void_t*, size_t, Sfdisc_t*));
+typedef Sfoff_t (*Sfseek_f)_ARG_((Sfio_t*, Sfoff_t, int, Sfdisc_t*));
+typedef int (*Sfexcept_f)_ARG_((Sfio_t*, int, Void_t*, Sfdisc_t*));
+typedef int (*Sfwalk_f)_ARG_((Sfio_t*, Void_t*));
+
+/* discipline structure */
+struct _sfdisc_s
+{ Sfread_f readf; /* read function */
+ Sfwrite_f writef; /* write function */
+ Sfseek_f seekf; /* seek function */
+ Sfexcept_f exceptf; /* to handle exceptions */
+ Sfdisc_t* disc; /* the continuing discipline */
+};
+
+#include <sfio_s.h>
+
+/* formatting environment */
+typedef struct _sffmt_s Sffmt_t;
+typedef int (*Sffmtext_f)_ARG_((Sfio_t*, Void_t*, Sffmt_t*));
+typedef int (*Sffmtevent_f)_ARG_((Sfio_t*, int, Void_t*, Sffmt_t*));
+struct _sffmt_s
+{ long version;/* version of this structure */
+ Sffmtext_f extf; /* function to process arguments */
+ Sffmtevent_f eventf; /* process events */
+
+ char* form; /* format string to stack */
+ va_list args; /* corresponding arg list */
+
+ int fmt; /* format character */
+ ssize_t size; /* object size */
+ int flags; /* formatting flags */
+ int width; /* width of field */
+ int precis; /* precision required */
+ int base; /* conversion base */
+
+ char* t_str; /* type string */
+ ssize_t n_str; /* length of t_str */
+
+ Void_t* mbs; /* multibyte state for format string */
+
+ Void_t* none; /* unused for now */
+};
+#define sffmtversion(fe,type) \
+ ((type) ? ((fe)->version = SFIO_VERSION) : (fe)->version)
+
+#define SFFMT_SSHORT 000000010 /* 'hh' flag, char */
+#define SFFMT_TFLAG 000000020 /* 't' flag, ptrdiff_t */
+#define SFFMT_ZFLAG 000000040 /* 'z' flag, size_t */
+
+#define SFFMT_LEFT 000000100 /* left-justification */
+#define SFFMT_SIGN 000000200 /* must have a sign */
+#define SFFMT_BLANK 000000400 /* if not signed, prepend a blank */
+#define SFFMT_ZERO 000001000 /* zero-padding on the left */
+#define SFFMT_ALTER 000002000 /* alternate formatting */
+#define SFFMT_THOUSAND 000004000 /* thousand grouping */
+#define SFFMT_SKIP 000010000 /* skip assignment in scanf() */
+#define SFFMT_SHORT 000020000 /* 'h' flag */
+#define SFFMT_LONG 000040000 /* 'l' flag */
+#define SFFMT_LLONG 000100000 /* 'll' flag */
+#define SFFMT_LDOUBLE 000200000 /* 'L' flag */
+#define SFFMT_VALUE 000400000 /* value is returned */
+#define SFFMT_ARGPOS 001000000 /* getting arg for $ patterns */
+#define SFFMT_IFLAG 002000000 /* 'I' flag */
+#define SFFMT_JFLAG 004000000 /* 'j' flag, intmax_t */
+#define SFFMT_CENTER 010000000 /* '=' flag, center justification */
+#define SFFMT_CHOP 020000000 /* chop long string values from left */
+#define SFFMT_SET 037777770 /* flags settable on calling extf */
+
+/* for sfmutex() call */
+#define SFMTX_LOCK 0 /* up mutex count */
+#define SFMTX_TRYLOCK 1 /* try to up mutex count */
+#define SFMTX_UNLOCK 2 /* down mutex count */
+#define SFMTX_CLRLOCK 3 /* clear mutex count */
+
+/* various constants */
+#ifndef NULL
+#define NULL 0
+#endif
+#ifndef EOF
+#define EOF (-1)
+#endif
+#ifndef SEEK_SET
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+#endif
+
+/* bits for various types of files */
+#define SF_READ 0000001 /* open for reading */
+#define SF_WRITE 0000002 /* open for writing */
+#define SF_STRING 0000004 /* a string stream */
+#define SF_APPENDWR 0000010 /* file is in append mode only */
+#define SF_MALLOC 0000020 /* buffer is malloc-ed */
+#define SF_LINE 0000040 /* line buffering */
+#define SF_SHARE 0000100 /* stream with shared file descriptor */
+#define SF_EOF 0000200 /* eof was detected */
+#define SF_ERROR 0000400 /* an error happened */
+#define SF_STATIC 0001000 /* a stream that cannot be freed */
+#define SF_IOCHECK 0002000 /* call exceptf before doing IO */
+#define SF_PUBLIC 0004000 /* SF_SHARE and follow physical seek */
+#define SF_MTSAFE 0010000 /* need thread safety */
+#define SF_WHOLE 0020000 /* preserve wholeness of sfwrite/sfputr */
+#define SF_IOINTR 0040000 /* return on interrupts */
+#define SF_WCWIDTH 0100000 /* wcwidth display stream */
+
+#define SF_FLAGS 0177177 /* PUBLIC FLAGS PASSABLE TO SFNEW() */
+#define SF_SETS 0177163 /* flags passable to sfset() */
+
+#ifndef _SF_NO_OBSOLETE
+#define SF_BUFCONST 0400000 /* unused flag - for compatibility only */
+#endif
+
+/* for sfgetr/sfreserve to hold a record */
+#define SF_LOCKR 0000010 /* lock record, stop access to stream */
+#define SF_LASTR 0000020 /* get the last incomplete record */
+
+/* exception events: SF_NEW(0), SF_READ(1), SF_WRITE(2) and the below */
+#define SF_SEEK 3 /* seek error */
+#define SF_CLOSING 4 /* when stream is about to be closed */
+#define SF_DPUSH 5 /* when discipline is being pushed */
+#define SF_DPOP 6 /* when discipline is being popped */
+#define SF_DPOLL 7 /* see if stream is ready for I/O */
+#define SF_DBUFFER 8 /* buffer not empty during push or pop */
+#define SF_SYNC 9 /* announcing start/end synchronization */
+#define SF_PURGE 10 /* a sfpurge() call was issued */
+#define SF_FINAL 11 /* closing is done except stream free */
+#define SF_READY 12 /* a polled stream is ready */
+#define SF_LOCKED 13 /* stream is in a locked state */
+#define SF_ATEXIT 14 /* process is exiting */
+#define SF_EVENT 100 /* start of user-defined events */
+
+/* for stack and disciplines */
+#define SF_POPSTACK ((Sfio_t*)0) /* pop the stream stack */
+#define SF_POPDISC ((Sfdisc_t*)0) /* pop the discipline stack */
+
+/* for the notify function and discipline exception */
+#define SF_NEW 0 /* new stream */
+#define SF_SETFD (-1) /* about to set the file descriptor */
+#define SF_MTACCESS (-2) /* starting a multi-threaded stream */
+
+#define SF_BUFSIZE 8192 /* default buffer size */
+#define SF_UNBOUND (-1) /* unbounded buffer size */
+
+/* namespace incursion workarounds -- migrate to the new names */
+#if !_mac_SF_APPEND
+#define SF_APPEND SF_APPENDWR /* BSDI sys/stat.h */
+#endif
+#if !_mac_SF_CLOSE
+#define SF_CLOSE SF_CLOSING /* AIX sys/socket.h */
+#endif
+
+_BEGIN_EXTERNS_
+
+#if _BLD_sfio && defined(__EXPORT__)
+#define extern extern __EXPORT__
+#endif
+#if !_BLD_sfio && defined(__IMPORT__)
+#define extern extern __IMPORT__
+#endif
+
+extern ssize_t _Sfi;
+extern ssize_t _Sfmaxr;
+
+/* standard in/out/err streams */
+extern Sfio_t* sfstdin;
+extern Sfio_t* sfstdout;
+extern Sfio_t* sfstderr;
+
+#if _UWIN
+#undef extern
+#endif
+
+extern Sfio_t _Sfstdin;
+extern Sfio_t _Sfstdout;
+extern Sfio_t _Sfstderr;
+
+#undef extern
+
+#if _BLD_sfio && defined(__EXPORT__)
+#define extern __EXPORT__
+#endif
+
+extern Sfio_t* sfnew _ARG_((Sfio_t*, Void_t*, size_t, int, int));
+extern Sfio_t* sfopen _ARG_((Sfio_t*, const char*, const char*));
+extern Sfio_t* sfpopen _ARG_((Sfio_t*, const char*, const char*));
+extern Sfio_t* sfstack _ARG_((Sfio_t*, Sfio_t*));
+extern Sfio_t* sfswap _ARG_((Sfio_t*, Sfio_t*));
+extern Sfio_t* sftmp _ARG_((size_t));
+extern int sfwalk _ARG_((Sfwalk_f, Void_t*, int));
+extern int sfpurge _ARG_((Sfio_t*));
+extern int sfpoll _ARG_((Sfio_t**, int, int));
+extern Void_t* sfreserve _ARG_((Sfio_t*, ssize_t, int));
+extern int sfresize _ARG_((Sfio_t*, Sfoff_t));
+extern int sfsync _ARG_((Sfio_t*));
+extern int sfclrlock _ARG_((Sfio_t*));
+extern Void_t* sfsetbuf _ARG_((Sfio_t*, Void_t*, size_t));
+extern Sfdisc_t* sfdisc _ARG_((Sfio_t*,Sfdisc_t*));
+extern int sfraise _ARG_((Sfio_t*, int, Void_t*));
+extern int sfnotify _ARG_((void(*)(Sfio_t*, int, void*)));
+extern int sfset _ARG_((Sfio_t*, int, int));
+extern int sfsetfd _ARG_((Sfio_t*, int));
+extern Sfio_t* sfpool _ARG_((Sfio_t*, Sfio_t*, int));
+extern ssize_t sfread _ARG_((Sfio_t*, Void_t*, size_t));
+extern ssize_t sfwrite _ARG_((Sfio_t*, const Void_t*, size_t));
+extern Sfoff_t sfmove _ARG_((Sfio_t*, Sfio_t*, Sfoff_t, int));
+extern int sfclose _ARG_((Sfio_t*));
+extern Sfoff_t sftell _ARG_((Sfio_t*));
+extern Sfoff_t sfseek _ARG_((Sfio_t*, Sfoff_t, int));
+extern ssize_t sfputr _ARG_((Sfio_t*, const char*, int));
+extern char* sfgetr _ARG_((Sfio_t*, int, int));
+extern ssize_t sfnputc _ARG_((Sfio_t*, int, size_t));
+extern int sfungetc _ARG_((Sfio_t*, int));
+extern int sfprintf _ARG_((Sfio_t*, const char*, ...));
+extern char* sfprints _ARG_((const char*, ...));
+extern ssize_t sfaprints _ARG_((char**, const char*, ...));
+extern ssize_t sfsprintf _ARG_((char*, size_t, const char*, ...));
+extern ssize_t sfvsprintf _ARG_((char*, size_t, const char*, va_list));
+extern ssize_t sfvasprints _ARG_((char**, const char*, va_list));
+extern int sfvprintf _ARG_((Sfio_t*, const char*, va_list));
+extern int sfscanf _ARG_((Sfio_t*, const char*, ...));
+extern int sfsscanf _ARG_((const char*, const char*, ...));
+extern int sfvsscanf _ARG_((const char*, const char*, va_list));
+extern int sfvscanf _ARG_((Sfio_t*, const char*, va_list));
+
+/* mutex locking for thread-safety */
+extern int sfmutex _ARG_((Sfio_t*, int));
+
+/* io functions with discipline continuation */
+extern ssize_t sfrd _ARG_((Sfio_t*, Void_t*, size_t, Sfdisc_t*));
+extern ssize_t sfwr _ARG_((Sfio_t*, const Void_t*, size_t, Sfdisc_t*));
+extern Sfoff_t sfsk _ARG_((Sfio_t*, Sfoff_t, int, Sfdisc_t*));
+extern ssize_t sfpkrd _ARG_((int, Void_t*, size_t, int, long, int));
+
+/* portable handling of primitive types */
+extern int sfdlen _ARG_((Sfdouble_t));
+extern int sfllen _ARG_((Sflong_t));
+extern int sfulen _ARG_((Sfulong_t));
+
+extern int sfputd _ARG_((Sfio_t*, Sfdouble_t));
+extern int sfputl _ARG_((Sfio_t*, Sflong_t));
+extern int sfputu _ARG_((Sfio_t*, Sfulong_t));
+extern int sfputm _ARG_((Sfio_t*, Sfulong_t, Sfulong_t));
+extern int sfputc _ARG_((Sfio_t*, int));
+
+extern Sfdouble_t sfgetd _ARG_((Sfio_t*));
+extern Sflong_t sfgetl _ARG_((Sfio_t*));
+extern Sfulong_t sfgetu _ARG_((Sfio_t*));
+extern Sfulong_t sfgetm _ARG_((Sfio_t*, Sfulong_t));
+extern int sfgetc _ARG_((Sfio_t*));
+
+extern int _sfputd _ARG_((Sfio_t*, Sfdouble_t));
+extern int _sfputl _ARG_((Sfio_t*, Sflong_t));
+extern int _sfputu _ARG_((Sfio_t*, Sfulong_t));
+extern int _sfputm _ARG_((Sfio_t*, Sfulong_t, Sfulong_t));
+extern int _sfflsbuf _ARG_((Sfio_t*, int));
+
+extern int _sffilbuf _ARG_((Sfio_t*, int));
+
+extern int _sfdlen _ARG_((Sfdouble_t));
+extern int _sfllen _ARG_((Sflong_t));
+extern int _sfulen _ARG_((Sfulong_t));
+
+/* miscellaneous function analogues of fast in-line functions */
+extern Sfoff_t sfsize _ARG_((Sfio_t*));
+extern int sfclrerr _ARG_((Sfio_t*));
+extern int sfeof _ARG_((Sfio_t*));
+extern int sferror _ARG_((Sfio_t*));
+extern int sffileno _ARG_((Sfio_t*));
+extern int sfstacked _ARG_((Sfio_t*));
+extern ssize_t sfvalue _ARG_((Sfio_t*));
+extern ssize_t sfslen _ARG_((void));
+extern ssize_t sfmaxr _ARG_((ssize_t, int));
+
+#undef extern
+_END_EXTERNS_
+
+/* coding long integers in a portable and compact fashion */
+#define SF_SBITS 6
+#define SF_UBITS 7
+#define SF_BBITS 8
+#define SF_SIGN (1 << SF_SBITS)
+#define SF_MORE (1 << SF_UBITS)
+#define SF_BYTE (1 << SF_BBITS)
+#define SF_U1 SF_MORE
+#define SF_U2 (SF_U1*SF_U1)
+#define SF_U3 (SF_U2*SF_U1)
+#define SF_U4 (SF_U3*SF_U1)
+
+#if __cplusplus
+#define _SF_(f) (f)
+#else
+#define _SF_(f) ((Sfio_t*)(f))
+#endif
+
+#define __sf_putd(f,v) (_sfputd(_SF_(f),(Sfdouble_t)(v)))
+#define __sf_putl(f,v) (_sfputl(_SF_(f),(Sflong_t)(v)))
+#define __sf_putu(f,v) (_sfputu(_SF_(f),(Sfulong_t)(v)))
+#define __sf_putm(f,v,m) (_sfputm(_SF_(f),(Sfulong_t)(v),(Sfulong_t)(m)))
+
+#define __sf_putc(f,c) (_SF_(f)->_next >= _SF_(f)->_endw ? \
+ _sfflsbuf(_SF_(f),(int)((unsigned char)(c))) : \
+ (int)(*_SF_(f)->_next++ = (unsigned char)(c)) )
+#define __sf_getc(f) (_SF_(f)->_next >= _SF_(f)->_endr ? _sffilbuf(_SF_(f),0) : \
+ (int)(*_SF_(f)->_next++) )
+
+#define __sf_dlen(v) (_sfdlen((Sfdouble_t)(v)) )
+#define __sf_llen(v) (_sfllen((Sflong_t)(v)) )
+#define __sf_ulen(v) ((Sfulong_t)(v) < SF_U1 ? 1 : (Sfulong_t)(v) < SF_U2 ? 2 : \
+ (Sfulong_t)(v) < SF_U3 ? 3 : (Sfulong_t)(v) < SF_U4 ? 4 : 5)
+
+#define __sf_fileno(f) (_SF_(f)->_file)
+#define __sf_eof(f) (_SF_(f)->_flags&SF_EOF)
+#define __sf_error(f) (_SF_(f)->_flags&SF_ERROR)
+#define __sf_clrerr(f) (_SF_(f)->_flags &= ~(SF_ERROR|SF_EOF))
+#define __sf_stacked(f) (_SF_(f)->_push != (Sfio_t*)0)
+#define __sf_value(f) (_SF_(f)->_val)
+#define __sf_slen() (_Sfi)
+#define __sf_maxr(n,s) ((s)?((_Sfi=_Sfmaxr),(_Sfmaxr=(n)),_Sfi):_Sfmaxr)
+
+#if defined(__INLINE__) && !_BLD_sfio
+
+__INLINE__ int sfputd(Sfio_t* f, Sfdouble_t v) { return __sf_putd(f,v); }
+__INLINE__ int sfputl(Sfio_t* f, Sflong_t v) { return __sf_putl(f,v); }
+__INLINE__ int sfputu(Sfio_t* f, Sfulong_t v) { return __sf_putu(f,v); }
+__INLINE__ int sfputm(Sfio_t* f, Sfulong_t v, Sfulong_t m)
+ { return __sf_putm(f,v,m); }
+
+__INLINE__ int sfputc(Sfio_t* f, int c) { return __sf_putc(f,c); }
+__INLINE__ int sfgetc(Sfio_t* f) { return __sf_getc(f); }
+
+__INLINE__ int sfdlen(Sfdouble_t v) { return __sf_dlen(v); }
+__INLINE__ int sfllen(Sflong_t v) { return __sf_llen(v); }
+__INLINE__ int sfulen(Sfulong_t v) { return __sf_ulen(v); }
+
+__INLINE__ int sffileno(Sfio_t* f) { return __sf_fileno(f); }
+__INLINE__ int sfeof(Sfio_t* f) { return __sf_eof(f); }
+__INLINE__ int sferror(Sfio_t* f) { return __sf_error(f); }
+__INLINE__ int sfclrerr(Sfio_t* f) { return __sf_clrerr(f); }
+__INLINE__ int sfstacked(Sfio_t* f) { return __sf_stacked(f); }
+__INLINE__ ssize_t sfvalue(Sfio_t* f) { return __sf_value(f); }
+__INLINE__ ssize_t sfslen() { return __sf_slen(); }
+__INLINE__ ssize_t sfmaxr(ssize_t n, int s) { return __sf_maxr(n,s); }
+
+#else
+
+#define sfputd(f,v) ( __sf_putd((f),(v)) )
+#define sfputl(f,v) ( __sf_putl((f),(v)) )
+#define sfputu(f,v) ( __sf_putu((f),(v)) )
+#define sfputm(f,v,m) ( __sf_putm((f),(v),(m)) )
+
+#define sfputc(f,c) ( __sf_putc((f),(c)) )
+#define sfgetc(f) ( __sf_getc(f) )
+
+#define sfdlen(v) ( __sf_dlen(v) )
+#define sfllen(v) ( __sf_llen(v) )
+#define sfulen(v) ( __sf_ulen(v) )
+
+#define sffileno(f) ( __sf_fileno(f) )
+#define sfeof(f) ( __sf_eof(f) )
+#define sferror(f) ( __sf_error(f) )
+#define sfclrerr(f) ( __sf_clrerr(f) )
+#define sfstacked(f) ( __sf_stacked(f) )
+#define sfvalue(f) ( __sf_value(f) )
+#define sfslen() ( __sf_slen() )
+#define sfmaxr(n,s) ( __sf_maxr(n,s) )
+
+#endif /*__INLINE__*/
+
+#ifndef _SFSTR_H /* GSF's string manipulation stuff */
+#define _SFSTR_H 1
+
+#define sfstropen() sfnew(0, 0, -1, -1, SF_READ|SF_WRITE|SF_STRING)
+#define sfstrclose(f) sfclose(f)
+
+#define sfstrseek(f,p,m) \
+ ( (m) == SEEK_SET ? \
+ (((p) < 0 || (p) > (f)->_size) ? (char*)0 : \
+ (char*)((f)->_next = (f)->_data+(p)) ) \
+ : (m) == SEEK_CUR ? \
+ ((f)->_next += (p), \
+ (((f)->_next < (f)->_data || (f)->_next > (f)->_data+(f)->_size) ? \
+ ((f)->_next -= (p), (char*)0) : (char*)(f)->_next ) ) \
+ : (m) == SEEK_END ? \
+ ( ((p) > 0 || (f)->_size+(p) < 0) ? (char*)0 : \
+ (char*)((f)->_next = (f)->_data+(f)->_size+(p)) ) \
+ : (char*)0 \
+ )
+
+#define sfstrsize(f) ((f)->_size)
+#define sfstrtell(f) ((f)->_next - (f)->_data)
+#define sfstrpend(f) ((f)->_size - sfstrtell())
+#define sfstrbase(f) ((char*)(f)->_data)
+
+#define sfstruse(f) \
+ (sfputc((f),0) < 0 ? (char*)0 : (char*)((f)->_next = (f)->_data) \
+ )
+
+#define sfstrrsrv(f,n) \
+ (sfreserve((f),(n),SF_WRITE|SF_LOCKR), sfwrite((f),(f)->_next,0), \
+ ((f)->_next+(n) <= (f)->_data+(f)->_size ? (char*)(f)->_next : (char*)0) \
+ )
+
+#define sfstrbuf(f,b,n,m) \
+ (sfsetbuf((f),(b),(n)), ((f)->_flags |= (m) ? SF_MALLOC : 0), \
+ ((f)->_data == (unsigned char*)(b) ? 0 : -1) \
+ )
+
+#endif /* _SFSTR_H */
+
+#endif /* _SFIO_H */