+++ /dev/null
-/****************************************************************************
- * *
- * GNAT COMPILER COMPONENTS *
- * *
- * S Y S D E P *
- * *
- * C Implementation File *
- * *
- * $Revision: 1.5.10.1.4.1 $
- * *
- * Copyright (C) 1992-2001 Free Software Foundation, Inc. *
- * *
- * GNAT is free software; you can redistribute it and/or modify it under *
- * terms of the GNU General Public License as published by the Free Soft- *
- * ware Foundation; either version 2, or (at your option) any later ver- *
- * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
- * OUT 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 distributed with GNAT; see 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 file with other files to *
- * produce an executable, this file does not by itself cause the resulting *
- * executable to be covered by the GNU General Public License. This except- *
- * ion does not however invalidate any other reasons why the executable *
- * file might be covered by the GNU Public License. *
- * *
- * GNAT was originally developed by the GNAT team at New York University. *
- * Extensive contributions were provided by Ada Core Technologies Inc. *
- * *
- ****************************************************************************/
-
-/* This file contains system dependent symbols that are referenced in the
- GNAT Run Time Library */
-
-#ifdef __vxworks
-#include "vxWorks.h"
-#endif
-#ifdef IN_RTS
-#define POSIX
-#include "tconfig.h"
-#include "tsystem.h"
-#include <fcntl.h>
-#include <sys/stat.h>
-#include "time.h"
-#else
-#include "config.h"
-#include "system.h"
-#endif
-
-#include "adaint.h"
-
-/*
- mode_read_text
- open text file for reading
- rt for DOS and Windows NT, r for Unix
-
- mode_write_text
- truncate to zero length or create text file for writing
- wt for DOS and Windows NT, w for Unix
-
- mode_append_text
- append; open or create text file for writing at end-of-file
- at for DOS and Windows NT, a for Unix
-
- mode_read_binary
- open binary file for reading
- rb for DOS and Windows NT, r for Unix
-
- mode_write_binary
- truncate to zero length or create binary file for writing
- wb for DOS and Windows NT, w for Unix
-
- mode_append_binary
- append; open or create binary file for writing at end-of-file
- ab for DOS and Windows NT, a for Unix
-
- mode_read_text_plus
- open text file for update (reading and writing)
- r+t for DOS and Windows NT, r+ for Unix
-
- mode_write_text_plus
- truncate to zero length or create text file for update
- w+t for DOS and Windows NT, w+ for Unix
-
- mode_append_text_plus
- append; open or create text file for update, writing at end-of-file
- a+t for DOS and Windows NT, a+ for Unix
-
- mode_read_binary_plus
- open binary file for update (reading and writing)
- r+b for DOS and Windows NT, r+ for Unix
-
- mode_write_binary_plus
- truncate to zero length or create binary file for update
- w+b for DOS and Windows NT, w+ for Unix
-
- mode_append_binary_plus
- append; open or create binary file for update, writing at end-of-file
- a+b for DOS and Windows NT, a+ for Unix
-
- Notes:
-
- (1) Opening a file with read mode fails if the file does not exist or
- cannot be read.
-
- (2) Opening a file with append mode causes all subsequent writes to the
- file to be forced to the then current end-of-file, regardless of
- intervening calls to the fseek function.
-
- (3) When a file is opened with update mode, both input and output may be
- performed on the associated stream. However, output may not be directly
- followed by input without an intervening call to the fflush function or
- to a file positioning function (fseek, fsetpos, or rewind), and input
- may not be directly followed by output without an intervening call to a
- file positioning function, unless the input operation encounters
- end-of-file.
-
- The other target dependent declarations here are for the two functions
- __gnat_set_binary_mode and __gnat_set_text_mode:
-
- void __gnat_set_binary_mode (int handle);
- void __gnat_set_text_mode (int handle);
-
- These functions have no effect in Unix (or similar systems where there is
- no distinction between binary and text files), but in DOS (and similar
- systems where text mode does CR/LF translation), these functions allow
- the mode of the stream with the given handle (fileno can be used to get
- the handle of a stream) to be changed dynamically. The returned result
- is 0 if no error occurs and -1 if an error occurs.
-
- Finally there is a boolean (character) variable
-
- char __gnat_text_translation_required;
-
- which is zero (false) in Unix mode, and one (true) in DOS mode, with a
- true value indicating that text translation is required on text files
- and that fopen supports the trailing t and b modifiers.
-
-*/
-
-#if defined(WINNT) || defined (MSDOS) || defined (__EMX__)
-const char *mode_read_text = "rt";
-const char *mode_write_text = "wt";
-const char *mode_append_text = "at";
-const char *mode_read_binary = "rb";
-const char *mode_write_binary = "wb";
-const char *mode_append_binary = "ab";
-const char *mode_read_text_plus = "r+t";
-const char *mode_write_text_plus = "w+t";
-const char *mode_append_text_plus = "a+t";
-const char *mode_read_binary_plus = "r+b";
-const char *mode_write_binary_plus = "w+b";
-const char *mode_append_binary_plus = "a+b";
-const char __gnat_text_translation_required = 1;
-
-void
-__gnat_set_binary_mode (handle)
- int handle;
-{
- _setmode (handle, O_BINARY);
-}
-
-void
-__gnat_set_text_mode (handle)
- int handle;
-{
- _setmode (handle, O_TEXT);
-}
-
-#ifdef __MINGW32__
-#include <windows.h>
-
-/* Return the name of the tty. Under windows there is no name for
- the tty, so this function, if connected to a tty, returns the generic name
- "console". */
-
-char *
-__gnat_ttyname (filedes)
- int filedes;
-{
- if (isatty (filedes))
- return "console";
- else
- return NULL;
-}
-
-/* This function is needed to fix a bug under Win95/98. Under these plateforms
- doing :
- ch1 = getch();
- ch2 = fgetc (stdin);
-
- will put the same character into ch1 and ch2. It seem that the character
- read by getch() is not correctly removed from the buffer. Even a
- fflush(stdin) does not fix the bug. This bug does not appear under Window
- NT. So we have two version of this routine below one for 95/98 and one for
- NT/2000 version of Windows. There is also a special routine (winflushinit)
- that will be called only the first time to check which version of Windows
- we are running running on to set the right routine to use.
-
- This problem occurs when using Text_IO.Get_Line after Text_IO.Get_Immediate
- for example.
-
- Calling FlushConsoleInputBuffer just after getch() fix the bug under
- 95/98. */
-
-static void winflush_init PARAMS ((void));
-
-static void winflush_95 PARAMS ((void));
-
-static void winflush_nt PARAMS ((void));
-
-/* winflusfunction is set first to the winflushinit function which will check
- the OS version 95/98 or NT/2000 */
-
-static void (*winflush_function) PARAMS ((void)) = winflush_init;
-
-/* This function does the runtime check of the OS version and then sets
- winflush_function to the appropriate function and then call it. */
-
-static void
-winflush_init ()
-{
- DWORD dwVersion = GetVersion();
-
- if (dwVersion < 0x80000000) /* Windows NT/2000 */
- winflush_function = winflush_nt;
- else /* Windows 95/98 */
- winflush_function = winflush_95;
-
- (*winflush_function)(); /* Perform the 'flush' */
-
-}
-
-static void winflush_95 ()
-{
- FlushConsoleInputBuffer (GetStdHandle (STD_INPUT_HANDLE));
-}
-
-static void winflush_nt ()
-{
- /* Does nothing as there is no problem under NT. */
-}
-#endif
-
-#else
-
-const char *mode_read_text = "r";
-const char *mode_write_text = "w";
-const char *mode_append_text = "a";
-const char *mode_read_binary = "r";
-const char *mode_write_binary = "w";
-const char *mode_append_binary = "a";
-const char *mode_read_text_plus = "r+";
-const char *mode_write_text_plus = "w+";
-const char *mode_append_text_plus = "a+";
-const char *mode_read_binary_plus = "r+";
-const char *mode_write_binary_plus = "w+";
-const char *mode_append_binary_plus = "a+";
-const char __gnat_text_translation_required = 0;
-
-/* These functions do nothing in non-DOS systems. */
-
-void
-__gnat_set_binary_mode (handle)
- int handle ATTRIBUTE_UNUSED;
-{
-}
-
-void
-__gnat_set_text_mode (handle)
- int handle ATTRIBUTE_UNUSED;
-{
-}
-char *
-__gnat_ttyname (filedes)
- int filedes;
-{
-#ifndef __vxworks
- extern char *ttyname PARAMS ((int));
-
- return ttyname (filedes);
-
-#else
- return "";
-
-#endif
-}
-#endif
-\f
-#if defined (linux) || defined (sun) || defined (sgi) || defined (__EMX__) \
- || (defined (__osf__) && ! defined (__alpha_vxworks)) || defined (WINNT) \
- || defined (__MACHTEN__) || defined (__CYGWIN__)
-#include <termios.h>
-
-#else
-#if defined (VMS)
-extern char *decc$ga_stdscr;
-static int initted = 0;
-#endif
-#endif
-
-/* Implements the common processing for getc_immediate and
- getc_immediate_nowait. */
-
-extern void getc_immediate PARAMS ((FILE *, int *, int *));
-extern void getc_immediate_nowait PARAMS ((FILE *, int *, int *, int *));
-extern void getc_immediate_common PARAMS ((FILE *, int *, int *,
- int *, int));
-
-/* Called by Get_Immediate (Foo); */
-
-void
-getc_immediate (stream, ch, end_of_file)
- FILE *stream;
- int *ch;
- int *end_of_file;
-{
- int avail;
-
- getc_immediate_common (stream, ch, end_of_file, &avail, 1);
-}
-
-/* Called by Get_Immediate (Foo, Available); */
-
-void
-getc_immediate_nowait (stream, ch, end_of_file, avail)
- FILE *stream;
- int *ch;
- int *end_of_file;
- int *avail;
-{
- getc_immediate_common (stream, ch, end_of_file, avail, 0);
-}
-
-/* Called by getc_immediate () and getc_immediate_nowait () */
-
-void
-getc_immediate_common (stream, ch, end_of_file, avail, waiting)
- FILE *stream;
- int *ch;
- int *end_of_file;
- int *avail;
- int waiting;
-{
-#if defined (linux) || defined (sun) || defined (sgi) || defined (__EMX__) \
- || (defined (__osf__) && ! defined (__alpha_vxworks)) \
- || defined (__CYGWIN__) || defined (__MACHTEN__)
- char c;
- int nread;
- int good_one = 0;
- int eof_ch = 4; /* Ctrl-D */
- int fd = fileno (stream);
- struct termios otermios_rec, termios_rec;
-
- if (isatty (fd))
- {
- tcgetattr (fd, &termios_rec);
- memcpy (&otermios_rec, &termios_rec, sizeof (struct termios));
- while (! good_one)
- {
- /* Set RAW mode */
- termios_rec.c_lflag = termios_rec.c_lflag & ~ICANON;
-#if defined(sgi) || defined (sun) || defined (__EMX__) || defined (__osf__) \
- || defined (linux) || defined (__MACHTEN__)
- eof_ch = termios_rec.c_cc[VEOF];
-
- /* If waiting (i.e. Get_Immediate (Char)), set MIN = 1 and wait for
- a character forever. This doesn't seem to effect Ctrl-Z or
- Ctrl-C processing except on OS/2 where Ctrl-C won't work right
- unless we do a read loop. Luckily we can delay a bit between
- iterations. If not waiting (i.e. Get_Immediate (Char, Available)),
- don't wait for anything but timeout immediately. */
-#ifdef __EMX__
- termios_rec.c_cc[VMIN] = 0;
- termios_rec.c_cc[VTIME] = waiting;
-#else
- termios_rec.c_cc[VMIN] = waiting;
- termios_rec.c_cc[VTIME] = 0;
-#endif
-#endif
- tcsetattr (fd, TCSANOW, &termios_rec);
-
- /* Read() is used here instead of fread(), because fread() doesn't
- work on Solaris5 and Sunos4 in this situation. Maybe because we
- are mixing calls that use file descriptors and streams. */
-
- nread = read (fd, &c, 1);
- if (nread > 0)
- {
- /* On Unix terminals, Ctrl-D (EOT) is an End of File. */
- if (c == eof_ch)
- {
- *avail = 0;
- *end_of_file = 1;
- good_one = 1;
- }
-
- /* Everything else is ok */
- else if (c != eof_ch)
- {
- *avail = 1;
- *end_of_file = 0;
- good_one = 1;
- }
- }
-
- else if (! waiting)
- {
- *avail = 0;
- *end_of_file = 0;
- good_one = 1;
- }
- else
- {
- good_one = 0;
- }
- }
-
- tcsetattr (fd, TCSANOW, &otermios_rec);
- *ch = c;
- }
-
- else
-#else
-#if defined (VMS)
- int fd = fileno (stream);
-
- if (isatty (fd))
- {
- if (initted == 0)
- {
- decc$bsd_initscr ();
- initted = 1;
- }
- decc$bsd_cbreak ();
- *ch = decc$bsd_wgetch (decc$ga_stdscr);
-
- if (*ch == 4)
- *end_of_file = 1;
- else
- *end_of_file = 0;
-
- *avail = 1;
- decc$bsd_nocbreak ();
- }
- else
-#else
-#if defined (__MINGW32__)
- int fd = fileno (stream);
- int char_waiting;
- int eot_ch = 4; /* Ctrl-D */
-
- if (isatty (fd))
- {
- if (waiting)
- {
- *ch = getch();
- (*winflush_function)();
-
- if (*ch == eot_ch)
- *end_of_file = 1;
- else
- *end_of_file = 0;
-
- *avail = 1;
- }
- else /* ! waiting */
- {
- char_waiting = kbhit();
-
- if (char_waiting == 1)
- {
- *avail = 1;
- *ch = getch();
- (*winflush_function)();
-
- if (*ch == eot_ch)
- *end_of_file = 1;
- else
- *end_of_file = 0;
- }
- else
- {
- *avail = 0;
- *end_of_file = 0;
- }
- }
- }
- else
-#endif
-#endif
-#endif
- {
- /* If we're not on a terminal, then we don't need any fancy processing.
- Also this is the only thing that's left if we're not on one of the
- supported systems. */
- *ch = fgetc (stream);
- if (feof (stream))
- {
- *end_of_file = 1;
- *avail = 0;
- }
- else
- {
- *end_of_file = 0;
- *avail = 1;
- }
- }
-}
-
-/* The following definitions are provided in NT to support Windows based
- Ada programs. */
-
-#ifdef WINNT
-#include <windows.h>
-
-/* Provide functions to echo the values passed to WinMain (windows bindings
- will want to import these). We use the same names as the routines used
- by AdaMagic for compatibility. */
-
-char *rts_get_hInstance PARAMS ((void));
-char *rts_get_hPrevInstance PARAMS ((void));
-char *rts_get_lpCommandLine PARAMS ((void));
-int rts_get_nShowCmd PARAMS ((void));
-
-char *
-rts_get_hInstance ()
-{
- return GetModuleHandleA (0);
-}
-
-char *
-rts_get_hPrevInstance ()
-{
- return 0;
-}
-
-char *
-rts_get_lpCommandLine ()
-{
- return GetCommandLineA ();
-}
-
-int
-rts_get_nShowCmd ()
-{
- return 1;
-}
-
-#endif /* WINNT */
-#ifdef VMS
-
-/* This gets around a problem with using the old threads library on VMS 7.0. */
-
-#include <time.h>
-
-extern long get_gmtoff PARAMS ((void));
-
-long
-get_gmtoff ()
-{
- time_t t;
- struct tm *ts;
-
- t = time ((time_t) 0);
- ts = localtime (&t);
- return ts->tm_gmtoff;
-}
-#endif
-
-/* Definition of __gnat_locatime_r used by a-calend.adb */
-
-#if defined (_AIX) || defined (__EMX__)
-#define Lock_Task system__soft_links__lock_task
-extern void (*Lock_Task) PARAMS ((void));
-
-#define Unlock_Task system__soft_links__unlock_task
-extern void (*Unlock_Task) PARAMS ((void));
-
-/* Provide reentrant version of localtime on Aix and OS/2. Note that AiX does
- provide localtime_r, but in the library libc_r which doesn't get included
- systematically, so we can't use it. */
-
-exrern void struct tm *__gnat_localtime_r PARAMS ((const time_t *,
- struct tm *));
-
-struct tm *
-__gnat_localtime_r (timer, tp)
- const time_t *timer;
- struct tm *tp;
-{
- struct tm *tmp;
-
- (*Lock_Task) ();
- tmp = localtime (timer);
- memcpy (tp, tmp, sizeof (struct tm));
- (*Unlock_Task) ();
- return tp;
-}
-
-#else
-#if defined (__Lynx__) && defined (___THREADS_POSIX4ad4__)
-
-/* As of LynxOS 3.1.0a patch level 040, LynuxWorks changes the
- prototype to the C library function localtime_r from the POSIX.4
- Draft 9 to the POSIX 1.c version. Before this change the following
- spec is required. Only use when ___THREADS_POSIX4ad4__ is defined,
- the Lynx convention when building against the legacy API. */
-
-extern struct tm *__gnat_localtime_r PARAMS ((const time_t *, struct tm *));
-
-struct tm *
-__gnat_localtime_r (timer, tp)
- const time_t *timer;
- struct tm *tp;
-{
- localtime_r (tp, timer);
- return NULL;
-}
-
-#else
-#if defined (VMS) || defined (__MINGW32__)
-
-/* __gnat_localtime_r is not needed on NT and VMS */
-
-#else
-
-/* All other targets provide a standard localtime_r */
-
-extern struct tm *__gnat_localtime_r PARAMS ((const time_t *, struct tm *));
-
-struct tm *
-__gnat_localtime_r (timer, tp)
- const time_t *timer;
- struct tm *tp;
-{
- return (struct tm *) localtime_r (timer, tp);
-}
-#endif
-#endif
-#endif
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