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Diffstat (limited to 'contrib/libio/libioP.h')
| -rw-r--r-- | contrib/libio/libioP.h | 648 |
1 files changed, 0 insertions, 648 deletions
diff --git a/contrib/libio/libioP.h b/contrib/libio/libioP.h deleted file mode 100644 index be70f526bbe6..000000000000 --- a/contrib/libio/libioP.h +++ /dev/null @@ -1,648 +0,0 @@ -/* Copyright (C) 1993, 1997 Free Software Foundation, Inc. - This file is part of the GNU IO Library. - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2, or (at - your option) any later version. - - This library is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this library; see the file COPYING. If not, write to - the Free Software Foundation, 59 Temple Place - Suite 330, Boston, - MA 02111-1307, USA. - - As a special exception, if you link this library with files - compiled with a GNU compiler to produce an executable, this does - not cause the resulting executable to be covered by the GNU General - Public License. This exception does not however invalidate any - other reasons why the executable file might be covered by the GNU - General Public License. */ - -#ifndef _POSIX_SOURCE -# define _POSIX_SOURCE -#endif - -#include <errno.h> -#ifndef __set_errno -# define __set_errno(Val) errno = (Val) -#endif - -#ifdef _IO_MTSAFE_IO -# if defined __GLIBC__ && __GLIBC__ >= 2 -# if __GLIBC_MINOR__ > 0 -# include <bits/libc-lock.h> -# else -# include <libc-lock.h> -# endif -# else -/*# include <comthread.h>*/ -# endif -#endif - -#include "iolibio.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define _IO_seek_set 0 -#define _IO_seek_cur 1 -#define _IO_seek_end 2 - -/* THE JUMPTABLE FUNCTIONS. - - * The _IO_FILE type is used to implement the FILE type in GNU libc, - * as well as the streambuf class in GNU iostreams for C++. - * These are all the same, just used differently. - * An _IO_FILE (or FILE) object is allows followed by a pointer to - * a jump table (of pointers to functions). The pointer is accessed - * with the _IO_JUMPS macro. The jump table has a eccentric format, - * so as to be compatible with the layout of a C++ virtual function table. - * (as implemented by g++). When a pointer to a streambuf object is - * coerced to an (_IO_FILE*), then _IO_JUMPS on the result just - * happens to point to the virtual function table of the streambuf. - * Thus the _IO_JUMPS function table used for C stdio/libio does - * double duty as the virtual function table for C++ streambuf. - * - * The entries in the _IO_JUMPS function table (and hence also the - * virtual functions of a streambuf) are described below. - * The first parameter of each function entry is the _IO_FILE/streambuf - * object being acted on (i.e. the 'this' parameter). - */ - -#define _IO_JUMPS(THIS) ((struct _IO_FILE_plus *) (THIS))->vtable -#ifdef _G_USING_THUNKS -# define JUMP_FIELD(TYPE, NAME) TYPE NAME -# define JUMP0(FUNC, THIS) _IO_JUMPS(THIS)->FUNC (THIS) -# define JUMP1(FUNC, THIS, X1) _IO_JUMPS(THIS)->FUNC (THIS, X1) -# define JUMP2(FUNC, THIS, X1, X2) _IO_JUMPS(THIS)->FUNC (THIS, X1, X2) -# define JUMP3(FUNC, THIS, X1,X2,X3) _IO_JUMPS(THIS)->FUNC (THIS, X1,X2, X3) -# define JUMP_INIT(NAME, VALUE) VALUE -# define JUMP_INIT_DUMMY JUMP_INIT(dummy, 0), JUMP_INIT (dummy2, 0) -#else -/* These macros will change when we re-implement vtables to use "thunks"! */ -# define JUMP_FIELD(TYPE, NAME) struct { short delta1, delta2; TYPE pfn; } NAME -# define JUMP0(FUNC, THIS) _IO_JUMPS(THIS)->FUNC.pfn (THIS) -# define JUMP1(FUNC, THIS, X1) _IO_JUMPS(THIS)->FUNC.pfn (THIS, X1) -# define JUMP2(FUNC, THIS, X1, X2) _IO_JUMPS(THIS)->FUNC.pfn (THIS, X1, X2) -# define JUMP3(FUNC, THIS, X1,X2,X3) _IO_JUMPS(THIS)->FUNC.pfn (THIS, X1,X2,X3) -# define JUMP_INIT(NAME, VALUE) {0, 0, VALUE} -# define JUMP_INIT_DUMMY JUMP_INIT(dummy, 0) -#endif - -/* The 'finish' function does any final cleaning up of an _IO_FILE object. - It does not delete (free) it, but does everything else to finalize it/ - It matches the streambuf::~streambuf virtual destructor. */ -typedef void (*_IO_finish_t) __PMT ((_IO_FILE *, int)); /* finalize */ -#define _IO_FINISH(FP) JUMP1 (__finish, FP, 0) - -/* The 'overflow' hook flushes the buffer. - The second argument is a character, or EOF. - It matches the streambuf::overflow virtual function. */ -typedef int (*_IO_overflow_t) __PMT ((_IO_FILE *, int)); -#define _IO_OVERFLOW(FP, CH) JUMP1 (__overflow, FP, CH) - -/* The 'underflow' hook tries to fills the get buffer. - It returns the next character (as an unsigned char) or EOF. The next - character remains in the get buffer, and the get position is not changed. - It matches the streambuf::underflow virtual function. */ -typedef int (*_IO_underflow_t) __PMT ((_IO_FILE *)); -#define _IO_UNDERFLOW(FP) JUMP0 (__underflow, FP) - -/* The 'uflow' hook returns the next character in the input stream - (cast to unsigned char), and increments the read position; - EOF is returned on failure. - It matches the streambuf::uflow virtual function, which is not in the - cfront implementation, but was added to C++ by the ANSI/ISO committee. */ -#define _IO_UFLOW(FP) JUMP0 (__uflow, FP) - -/* The 'pbackfail' hook handles backing up. - It matches the streambuf::pbackfail virtual function. */ -typedef int (*_IO_pbackfail_t) __PMT ((_IO_FILE *, int)); -#define _IO_PBACKFAIL(FP, CH) JUMP1 (__pbackfail, FP, CH) - -/* The 'xsputn' hook writes upto N characters from buffer DATA. - Returns the number of character actually written. - It matches the streambuf::xsputn virtual function. */ -typedef _IO_size_t (*_IO_xsputn_t) __PMT ((_IO_FILE *FP, const void *DATA, - _IO_size_t N)); -#define _IO_XSPUTN(FP, DATA, N) JUMP2 (__xsputn, FP, DATA, N) - -/* The 'xsgetn' hook reads upto N characters into buffer DATA. - Returns the number of character actually read. - It matches the streambuf::xsgetn virtual function. */ -typedef _IO_size_t (*_IO_xsgetn_t) __PMT ((_IO_FILE *FP, void *DATA, - _IO_size_t N)); -#define _IO_XSGETN(FP, DATA, N) JUMP2 (__xsgetn, FP, DATA, N) - -/* The 'seekoff' hook moves the stream position to a new position - relative to the start of the file (if DIR==0), the current position - (MODE==1), or the end of the file (MODE==2). - It matches the streambuf::seekoff virtual function. - It is also used for the ANSI fseek function. */ -#if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -typedef _IO_off64_t (*_IO_seekoff_t) __PMT ((_IO_FILE *FP, _IO_off64_t OFF, - int DIR, int MODE)); -#else -typedef _IO_off_t (*_IO_seekoff_t) __PMT ((_IO_FILE *FP, _IO_off_t OFF, - int DIR, int MODE)); -#endif -#define _IO_SEEKOFF(FP, OFF, DIR, MODE) JUMP3 (__seekoff, FP, OFF, DIR, MODE) - -/* The 'seekpos' hook also moves the stream position, - but to an absolute position given by a fpos_t (seekpos). - It matches the streambuf::seekpos virtual function. - It is also used for the ANSI fgetpos and fsetpos functions. */ -/* The _IO_seek_cur and _IO_seek_end options are not allowed. */ -#if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -typedef _IO_off64_t (*_IO_seekpos_t) __PMT ((_IO_FILE *, _IO_off64_t, int)); -#else -typedef _IO_off_t (*_IO_seekpos_t) __PMT ((_IO_FILE *, _IO_off_t, int)); -#endif -#define _IO_SEEKPOS(FP, POS, FLAGS) JUMP2 (__seekpos, FP, POS, FLAGS) - -/* The 'setbuf' hook gives a buffer to the file. - It matches the streambuf::setbuf virtual function. */ -typedef _IO_FILE* (*_IO_setbuf_t) __PMT ((_IO_FILE *, char *, _IO_ssize_t)); -#define _IO_SETBUF(FP, BUFFER, LENGTH) JUMP2 (__setbuf, FP, BUFFER, LENGTH) - -/* The 'sync' hook attempts to synchronize the internal data structures - of the file with the external state. - It matches the streambuf::sync virtual function. */ -typedef int (*_IO_sync_t) __PMT ((_IO_FILE *)); -#define _IO_SYNC(FP) JUMP0 (__sync, FP) - -/* The 'doallocate' hook is used to tell the file to allocate a buffer. - It matches the streambuf::doallocate virtual function, which is not - in the ANSI/ISO C++ standard, but is part traditional implementations. */ -typedef int (*_IO_doallocate_t) __PMT ((_IO_FILE *)); -#define _IO_DOALLOCATE(FP) JUMP0 (__doallocate, FP) - -/* The following four hooks (sysread, syswrite, sysclose, sysseek, and - sysstat) are low-level hooks specific to this implementation. - There is no correspondence in the ANSI/ISO C++ standard library. - The hooks basically correspond to the Unix system functions - (read, write, close, lseek, and stat) except that a _IO_FILE* - parameter is used instead of a integer file descriptor; the default - implementation used for normal files just calls those functions. - The advantage of overriding these functions instead of the higher-level - ones (underflow, overflow etc) is that you can leave all the buffering - higher-level functions. */ - -/* The 'sysread' hook is used to read data from the external file into - an existing buffer. It generalizes the Unix read(2) function. - It matches the streambuf::sys_read virtual function, which is - specific to this implementation. */ -typedef _IO_ssize_t (*_IO_read_t) __PMT ((_IO_FILE *, void *, _IO_ssize_t)); -#define _IO_SYSREAD(FP, DATA, LEN) JUMP2 (__read, FP, DATA, LEN) - -/* The 'syswrite' hook is used to write data from an existing buffer - to an external file. It generalizes the Unix write(2) function. - It matches the streambuf::sys_write virtual function, which is - specific to this implementation. */ -typedef _IO_ssize_t (*_IO_write_t) __PMT ((_IO_FILE *,const void *,_IO_ssize_t)); -#define _IO_SYSWRITE(FP, DATA, LEN) JUMP2 (__write, FP, DATA, LEN) - -/* The 'sysseek' hook is used to re-position an external file. - It generalizes the Unix lseek(2) function. - It matches the streambuf::sys_seek virtual function, which is - specific to this implementation. */ -#if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -typedef _IO_off64_t (*_IO_seek_t) __PMT ((_IO_FILE *, _IO_off64_t, int)); -#else -typedef _IO_off_t (*_IO_seek_t) __PMT ((_IO_FILE *, _IO_off_t, int)); -#endif -#define _IO_SYSSEEK(FP, OFFSET, MODE) JUMP2 (__seek, FP, OFFSET, MODE) - -/* The 'sysclose' hook is used to finalize (close, finish up) an - external file. It generalizes the Unix close(2) function. - It matches the streambuf::sys_close virtual function, which is - specific to this implementation. */ -typedef int (*_IO_close_t) __PMT ((_IO_FILE *)); /* finalize */ -#define _IO_SYSCLOSE(FP) JUMP0 (__close, FP) - -/* The 'sysstat' hook is used to get information about an external file - into a struct stat buffer. It generalizes the Unix fstat(2) call. - It matches the streambuf::sys_stat virtual function, which is - specific to this implementation. */ -typedef int (*_IO_stat_t) __PMT ((_IO_FILE *, void *)); -#define _IO_SYSSTAT(FP, BUF) JUMP1 (__stat, FP, BUF) - -#if _G_IO_IO_FILE_VERSION == 0x20001 -/* The 'showmany' hook can be used to get an image how much input is - available. In many cases the answer will be 0 which means unknown - but some cases one can provide real information. */ -typedef int (*_IO_showmanyc_t) __PMT ((_IO_FILE *)); -#define _IO_SHOWMANYC(FP) JUMP0 (__showmanyc, FP) - -/* The 'imbue' hook is used to get information about the currently - installed locales. */ -typedef void (*_IO_imbue_t) __PMT ((_IO_FILE *, void *)); -#define _IO_IMBUE(FP, LOCALE) JUMP1 (__imbue, FP, LOCALE) -#endif - - -#define _IO_CHAR_TYPE char /* unsigned char ? */ -#define _IO_INT_TYPE int - -struct _IO_jump_t -{ - JUMP_FIELD(_G_size_t, __dummy); -#ifdef _G_USING_THUNKS - JUMP_FIELD(_G_size_t, __dummy2); -#endif - JUMP_FIELD(_IO_finish_t, __finish); - JUMP_FIELD(_IO_overflow_t, __overflow); - JUMP_FIELD(_IO_underflow_t, __underflow); - JUMP_FIELD(_IO_underflow_t, __uflow); - JUMP_FIELD(_IO_pbackfail_t, __pbackfail); - /* showmany */ - JUMP_FIELD(_IO_xsputn_t, __xsputn); - JUMP_FIELD(_IO_xsgetn_t, __xsgetn); - JUMP_FIELD(_IO_seekoff_t, __seekoff); - JUMP_FIELD(_IO_seekpos_t, __seekpos); - JUMP_FIELD(_IO_setbuf_t, __setbuf); - JUMP_FIELD(_IO_sync_t, __sync); - JUMP_FIELD(_IO_doallocate_t, __doallocate); - JUMP_FIELD(_IO_read_t, __read); - JUMP_FIELD(_IO_write_t, __write); - JUMP_FIELD(_IO_seek_t, __seek); - JUMP_FIELD(_IO_close_t, __close); - JUMP_FIELD(_IO_stat_t, __stat); -#if _G_IO_IO_FILE_VERSION == 0x20001 - JUMP_FIELD(_IO_showmanyc_t, __showmanyc); - JUMP_FIELD(_IO_imbue_t, __imbue); -#endif -#if 0 - get_column; - set_column; -#endif -}; - -/* We always allocate an extra word following an _IO_FILE. - This contains a pointer to the function jump table used. - This is for compatibility with C++ streambuf; the word can - be used to smash to a pointer to a virtual function table. */ - -struct _IO_FILE_plus -{ - _IO_FILE file; - const struct _IO_jump_t *vtable; -}; - -/* Generic functions */ - -#if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -extern _IO_off64_t _IO_seekoff __P ((_IO_FILE *, _IO_off64_t, int, int)); -extern _IO_off64_t _IO_seekpos __P ((_IO_FILE *, _IO_off64_t, int)); -#else -extern _IO_off_t _IO_seekoff __P ((_IO_FILE *, _IO_off_t, int, int)); -extern _IO_off_t _IO_seekpos __P ((_IO_FILE *, _IO_off_t, int)); -#endif - -extern void _IO_switch_to_main_get_area __P ((_IO_FILE *)); -extern void _IO_switch_to_backup_area __P ((_IO_FILE *)); -extern int _IO_switch_to_get_mode __P ((_IO_FILE *)); -extern void _IO_init __P ((_IO_FILE *, int)); -extern int _IO_sputbackc __P ((_IO_FILE *, int)); -extern int _IO_sungetc __P ((_IO_FILE *)); -extern void _IO_un_link __P ((_IO_FILE *)); -extern void _IO_link_in __P ((_IO_FILE *)); -extern void _IO_doallocbuf __P ((_IO_FILE *)); -extern void _IO_unsave_markers __P ((_IO_FILE *)); -extern void _IO_setb __P ((_IO_FILE *, char *, char *, int)); -extern unsigned _IO_adjust_column __P ((unsigned, const char *, int)); -#define _IO_sputn(__fp, __s, __n) _IO_XSPUTN (__fp, __s, __n) - -/* Marker-related function. */ - -extern void _IO_init_marker __P ((struct _IO_marker *, _IO_FILE *)); -extern void _IO_remove_marker __P ((struct _IO_marker *)); -extern int _IO_marker_difference __P ((struct _IO_marker *, - struct _IO_marker *)); -extern int _IO_marker_delta __P ((struct _IO_marker *)); -extern int _IO_seekmark __P ((_IO_FILE *, struct _IO_marker *, int)); - -/* Default jumptable functions. */ - -extern int _IO_default_underflow __P ((_IO_FILE *)); -extern int _IO_default_uflow __P ((_IO_FILE *)); -extern int _IO_default_doallocate __P ((_IO_FILE *)); -extern void _IO_default_finish __P ((_IO_FILE *, int)); -extern int _IO_default_pbackfail __P ((_IO_FILE *, int)); -extern _IO_FILE* _IO_default_setbuf __P ((_IO_FILE *, char *, _IO_ssize_t)); -extern _IO_size_t _IO_default_xsputn __P ((_IO_FILE *, const void *, - _IO_size_t)); -extern _IO_size_t _IO_default_xsgetn __P ((_IO_FILE *, void *, _IO_size_t)); -#if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -extern _IO_off64_t _IO_default_seekoff __P ((_IO_FILE *, - _IO_off64_t, int, int)); -extern _IO_off64_t _IO_default_seekpos __P ((_IO_FILE *, - _IO_off64_t, int)); -#else -extern _IO_off_t _IO_default_seekoff __P ((_IO_FILE *, _IO_off_t, int, int)); -extern _IO_off_t _IO_default_seekpos __P ((_IO_FILE *, _IO_off_t, int)); -#endif -extern _IO_ssize_t _IO_default_write __P ((_IO_FILE *, const void *, - _IO_ssize_t)); -extern _IO_ssize_t _IO_default_read __P ((_IO_FILE *, void *, _IO_ssize_t)); -extern int _IO_default_stat __P ((_IO_FILE *, void *)); -#if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -extern _IO_off64_t _IO_default_seek __P ((_IO_FILE *, _IO_off64_t, int)); -#else -extern _IO_off_t _IO_default_seek __P ((_IO_FILE *, _IO_off_t, int)); -#endif -extern int _IO_default_sync __P ((_IO_FILE *)); -#define _IO_default_close ((_IO_close_t) _IO_default_sync) - -extern struct _IO_jump_t _IO_file_jumps; -extern struct _IO_jump_t _IO_streambuf_jumps; -extern struct _IO_jump_t _IO_proc_jumps; -extern struct _IO_jump_t _IO_str_jumps; -extern int _IO_do_write __P ((_IO_FILE *, const char *, _IO_size_t)); -extern int _IO_flush_all __P ((void)); -extern void _IO_cleanup __P ((void)); -extern void _IO_flush_all_linebuffered __P ((void)); - -#define _IO_do_flush(_f) \ - _IO_do_write(_f, (_f)->_IO_write_base, \ - (_f)->_IO_write_ptr-(_f)->_IO_write_base) -#define _IO_in_put_mode(_fp) ((_fp)->_flags & _IO_CURRENTLY_PUTTING) -#define _IO_mask_flags(fp, f, mask) \ - ((fp)->_flags = ((fp)->_flags & ~(mask)) | ((f) & (mask))) -#define _IO_setg(fp, eb, g, eg) ((fp)->_IO_read_base = (eb),\ - (fp)->_IO_read_ptr = (g), (fp)->_IO_read_end = (eg)) -#define _IO_setp(__fp, __p, __ep) \ - ((__fp)->_IO_write_base = (__fp)->_IO_write_ptr = __p, (__fp)->_IO_write_end = (__ep)) -#define _IO_have_backup(fp) ((fp)->_IO_save_base != NULL) -#define _IO_in_backup(fp) ((fp)->_flags & _IO_IN_BACKUP) -#define _IO_have_markers(fp) ((fp)->_markers != NULL) -#define _IO_blen(fp) ((fp)->_IO_buf_end - (fp)->_IO_buf_base) - -/* Jumptable functions for files. */ - -extern int _IO_file_doallocate __P ((_IO_FILE *)); -extern _IO_FILE* _IO_file_setbuf __P ((_IO_FILE *, char *, _IO_ssize_t)); -#if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -extern _IO_off64_t _IO_file_seekoff __P ((_IO_FILE *, _IO_off64_t, int, int)); -extern _IO_off64_t _IO_file_seek __P ((_IO_FILE *, _IO_off64_t, int)); -#else -extern _IO_off_t _IO_file_seekoff __P ((_IO_FILE *, _IO_off_t, int, int)); -extern _IO_off_t _IO_file_seek __P ((_IO_FILE *, _IO_off_t, int)); -#endif -extern _IO_size_t _IO_file_xsputn __P ((_IO_FILE *, const void *, _IO_size_t)); -extern int _IO_file_stat __P ((_IO_FILE *, void *)); -extern int _IO_file_close __P ((_IO_FILE *)); -extern int _IO_file_underflow __P ((_IO_FILE *)); -extern int _IO_file_overflow __P ((_IO_FILE *, int)); -#define _IO_file_is_open(__fp) ((__fp)->_fileno >= 0) -extern void _IO_file_init __P ((_IO_FILE *)); -extern _IO_FILE* _IO_file_attach __P ((_IO_FILE *, int)); -extern _IO_FILE* _IO_file_open __P ((_IO_FILE *, const char *, int, int, - int, int)); -#if _G_IO_IO_FILE_VERSION == 0x20001 -extern _IO_FILE* _IO_file_fopen __P ((_IO_FILE *, const char *, const char *, - int)); -#else -extern _IO_FILE* _IO_file_fopen __P ((_IO_FILE *, const char *, const char *)); -#endif -extern _IO_ssize_t _IO_file_write __P ((_IO_FILE *, const void *, - _IO_ssize_t)); -extern _IO_ssize_t _IO_file_read __P ((_IO_FILE *, void *, _IO_ssize_t)); -extern int _IO_file_sync __P ((_IO_FILE *)); -extern int _IO_file_close_it __P ((_IO_FILE *)); -extern void _IO_file_finish __P ((_IO_FILE *, int)); - -/* Jumptable functions for proc_files. */ -extern _IO_FILE* _IO_proc_open __P ((_IO_FILE *, const char *, const char *)); -extern int _IO_proc_close __P ((_IO_FILE *)); - -/* Jumptable functions for strfiles. */ -extern int _IO_str_underflow __P ((_IO_FILE *)); -extern int _IO_str_overflow __P ((_IO_FILE *, int)); -extern int _IO_str_pbackfail __P ((_IO_FILE *, int)); -#if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -extern _IO_off64_t _IO_str_seekoff __P ((_IO_FILE *, _IO_off64_t, int, int)); -#else -extern _IO_off_t _IO_str_seekoff __P ((_IO_FILE *, _IO_off_t, int, int)); -#endif -extern void _IO_str_finish __P ((_IO_FILE *, int)); - -/* Other strfile functions */ -extern void _IO_str_init_static __P ((_IO_FILE *, char *, int, char *)); -extern void _IO_str_init_readonly __P ((_IO_FILE *, const char *, int)); -extern _IO_ssize_t _IO_str_count __P ((_IO_FILE *)); - -extern int _IO_vasprintf __P ((char **result_ptr, __const char *format, - _IO_va_list args)); -extern int _IO_vdprintf __P ((int d, __const char *format, _IO_va_list arg)); -extern int _IO_vsnprintf __P ((char *string, _IO_size_t maxlen, - __const char *format, _IO_va_list args)); - - -extern _IO_size_t _IO_getline __P ((_IO_FILE *,char *, _IO_size_t, int, int)); -extern _IO_size_t _IO_getline_info __P ((_IO_FILE *,char *, _IO_size_t, - int, int, int *)); -extern _IO_ssize_t _IO_getdelim __P ((char **, _IO_size_t *, int, _IO_FILE *)); -extern double _IO_strtod __P ((const char *, char **)); -extern char *_IO_dtoa __P ((double __d, int __mode, int __ndigits, - int *__decpt, int *__sign, char **__rve)); -extern int _IO_outfloat __P ((double __value, _IO_FILE *__sb, int __type, - int __width, int __precision, int __flags, - int __sign_mode, int __fill)); - -extern _IO_FILE *_IO_list_all; -extern void (*_IO_cleanup_registration_needed) __PMT ((void)); - -#ifndef EOF -# define EOF (-1) -#endif -#ifndef NULL -# if defined __GNUG__ && \ - (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)) -# define NULL (__null) -# else -# if !defined(__cplusplus) -# define NULL ((void*)0) -# else -# define NULL (0) -# endif -# endif -#endif - -#if _G_HAVE_MMAP - -# include <unistd.h> -# include <fcntl.h> -# include <sys/mman.h> -# include <sys/param.h> - -# if !defined(MAP_ANONYMOUS) && defined(MAP_ANON) -# define MAP_ANONYMOUS MAP_ANON -# endif - -# if !defined(MAP_ANONYMOUS) || !defined(EXEC_PAGESIZE) -# undef _G_HAVE_MMAP -# define _G_HAVE_MMAP 0 -# endif - -#endif /* _G_HAVE_MMAP */ - -#if _G_HAVE_MMAP - -# ifdef _LIBC -/* When using this code in the GNU libc we must not pollute the name space. */ -# define mmap __mmap -# define munmap __munmap -# endif - -# define ROUND_TO_PAGE(_S) \ - (((_S) + EXEC_PAGESIZE - 1) & ~(EXEC_PAGESIZE - 1)) - -# define FREE_BUF(_B, _S) \ - munmap ((_B), ROUND_TO_PAGE (_S)) -# define ALLOC_BUF(_B, _S, _R) \ - do { \ - (_B) = (char *) mmap (0, ROUND_TO_PAGE (_S), \ - PROT_READ | PROT_WRITE, \ - MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \ - if ((_B) == (char *) -1) \ - return (_R); \ - } while (0) - -#else /* _G_HAVE_MMAP */ - -# define FREE_BUF(_B, _S) \ - free(_B) -# define ALLOC_BUF(_B, _S, _R) \ - do { \ - (_B) = (char*)malloc(_S); \ - if ((_B) == NULL) \ - return (_R); \ - } while (0) - -#endif /* _G_HAVE_MMAP */ - -#ifndef OS_FSTAT -# define OS_FSTAT fstat -#endif -struct stat; -extern _IO_ssize_t _IO_read __P ((int, void *, _IO_size_t)); -extern _IO_ssize_t _IO_write __P ((int, const void *, _IO_size_t)); -extern _IO_off_t _IO_lseek __P ((int, _IO_off_t, int)); -extern int _IO_close __P ((int)); -extern int _IO_fstat __P ((int, struct stat *)); -extern int _IO_vscanf __P ((const char *, _IO_va_list)); - -/* Operations on _IO_fpos_t. - Normally, these are trivial, but we provide hooks for configurations - where an _IO_fpos_t is a struct. - Note that _IO_off_t must be an integral type. */ - -/* _IO_pos_BAD is an _IO_off_t value indicating error, unknown, or EOF. */ -#ifndef _IO_pos_BAD -# if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -# define _IO_pos_BAD ((_IO_off64_t) -1) -# else -# define _IO_pos_BAD ((_IO_off_t) -1) -# endif -#endif -/* _IO_pos_as_off converts an _IO_fpos_t value to an _IO_off_t value. */ -#ifndef _IO_pos_as_off -# if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -# define _IO_pos_as_off(__pos) ((_IO_off64_t) (__pos)) -# else -# define _IO_pos_as_off(__pos) ((_IO_off_t) (__pos)) -# endif -#endif -/* _IO_pos_adjust adjust an _IO_fpos_t by some number of bytes. */ -#ifndef _IO_pos_adjust -# define _IO_pos_adjust(__pos, __delta) ((__pos) += (__delta)) -#endif -/* _IO_pos_0 is an _IO_fpos_t value indicating beginning of file. */ -#ifndef _IO_pos_0 -# if defined(_G_IO_IO_FILE_VERSION) && _G_IO_IO_FILE_VERSION == 0x20001 -# define _IO_pos_0 ((_IO_fpos64_t) 0) -# else -# define _IO_pos_0 ((_IO_fpos_t) 0) -# endif -#endif - -#ifdef __cplusplus -} -#endif - -#ifdef _IO_MTSAFE_IO -/* check following! */ -# define FILEBUF_LITERAL(CHAIN, FLAGS, FD) \ - { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, FD, \ - 0, 0, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock } -#else -/* check following! */ -# define FILEBUF_LITERAL(CHAIN, FLAGS, FD) \ - { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, FD } -#endif - -/* VTABLE_LABEL defines NAME as of the CLASS class. - CNLENGTH is strlen(#CLASS). */ -#ifdef __GNUC__ -# if _G_VTABLE_LABEL_HAS_LENGTH -# define VTABLE_LABEL(NAME, CLASS, CNLENGTH) \ - extern char NAME[] asm (_G_VTABLE_LABEL_PREFIX #CNLENGTH #CLASS); -# else -# define VTABLE_LABEL(NAME, CLASS, CNLENGTH) \ - extern char NAME[] asm (_G_VTABLE_LABEL_PREFIX #CLASS); -# endif -#endif /* __GNUC__ */ - -#if !defined(builtinbuf_vtable) && defined(__cplusplus) -# ifdef __GNUC__ -VTABLE_LABEL(builtinbuf_vtable, builtinbuf, 10) -# else -# if _G_VTABLE_LABEL_HAS_LENGTH -# define builtinbuf_vtable _G_VTABLE_LABEL_PREFIX_ID##10builtinbuf -# else -# define builtinbuf_vtable _G_VTABLE_LABEL_PREFIX_ID##builtinbuf -# endif -# endif -#endif /* !defined(builtinbuf_vtable) && defined(__cplusplus) */ - -#if defined(__STDC__) || defined(__cplusplus) -# define _IO_va_start(args, last) va_start(args, last) -#else -# define _IO_va_start(args, last) va_start(args) -#endif - -extern struct _IO_fake_stdiobuf _IO_stdin_buf, _IO_stdout_buf, _IO_stderr_buf; - -#if 1 -# define COERCE_FILE(FILE) /* Nothing */ -#else -/* This is part of the kludge for binary compatibility with old stdio. */ -# define COERCE_FILE(FILE) \ - (((FILE)->_IO_file_flags & _IO_MAGIC_MASK) == _OLD_MAGIC_MASK \ - && (FILE) = *(FILE**)&((int*)fp)[1]) -#endif - -#ifdef EINVAL -# define MAYBE_SET_EINVAL __set_errno (EINVAL) -#else -# define MAYBE_SET_EINVAL /* nothing */ -#endif - -#ifdef IO_DEBUG -# define CHECK_FILE(FILE, RET) \ - if ((FILE) == NULL) { MAYBE_SET_EINVAL; return RET; } \ - else { COERCE_FILE(FILE); \ - if (((FILE)->_IO_file_flags & _IO_MAGIC_MASK) != _IO_MAGIC) \ - { MAYBE_SET_EINVAL; return RET; }} -#else -# define CHECK_FILE(FILE, RET) COERCE_FILE (FILE) -#endif |