diff options
Diffstat (limited to 'gcc/ada/sysdep.c')
| -rw-r--r-- | gcc/ada/sysdep.c | 214 |
1 files changed, 150 insertions, 64 deletions
diff --git a/gcc/ada/sysdep.c b/gcc/ada/sysdep.c index 2ab58074c02..a2804c66025 100644 --- a/gcc/ada/sysdep.c +++ b/gcc/ada/sysdep.c @@ -6,9 +6,9 @@ * * * C Implementation File * * * - * $Revision: 1.4 $ + * $Revision$ * * - * Copyright (C) 1992-2001 Free Software Foundation, Inc. * + * Copyright (C) 1992-2002 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- * @@ -36,6 +36,8 @@ GNAT Run Time Library */ #ifdef __vxworks +#include "ioLib.h" +#include "selectLib.h" #include "vxWorks.h" #endif #ifdef IN_RTS @@ -142,18 +144,18 @@ */ #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"; +static const char *mode_read_text = "rt"; +static const char *mode_write_text = "wt"; +static const char *mode_append_text = "at"; +static const char *mode_read_binary = "rb"; +static const char *mode_write_binary = "wb"; +static const char *mode_append_binary = "ab"; +static const char *mode_read_text_plus = "r+t"; +static const char *mode_write_text_plus = "w+t"; +static const char *mode_append_text_plus = "a+t"; +static const char *mode_read_binary_plus = "r+b"; +static const char *mode_write_binary_plus = "w+b"; +static const char *mode_append_binary_plus = "a+b"; const char __gnat_text_translation_required = 1; void @@ -247,18 +249,18 @@ static void winflush_nt () #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+"; +static const char *mode_read_text = "r"; +static const char *mode_write_text = "w"; +static const char *mode_append_text = "a"; +static const char *mode_read_binary = "r"; +static const char *mode_write_binary = "w"; +static const char *mode_append_binary = "a"; +static const char *mode_read_text_plus = "r+"; +static const char *mode_write_text_plus = "w+"; +static const char *mode_append_text_plus = "a+"; +static const char *mode_read_binary_plus = "r+"; +static const char *mode_write_binary_plus = "w+"; +static const char *mode_append_binary_plus = "a+"; const char __gnat_text_translation_required = 0; /* These functions do nothing in non-DOS systems. */ @@ -292,7 +294,8 @@ __gnat_ttyname (filedes) #if defined (linux) || defined (sun) || defined (sgi) || defined (__EMX__) \ || (defined (__osf__) && ! defined (__alpha_vxworks)) || defined (WINNT) \ - || defined (__MACHTEN__) + || defined (__MACHTEN__) || defined (hpux) || defined (_AIX) \ + || (defined (__svr4__) && defined (i386)) || defined (__Lynx__) #include <termios.h> #else @@ -347,7 +350,9 @@ getc_immediate_common (stream, ch, end_of_file, avail, waiting) { #if defined (linux) || defined (sun) || defined (sgi) || defined (__EMX__) \ || (defined (__osf__) && ! defined (__alpha_vxworks)) \ - || defined (__CYGWIN32__) || defined (__MACHTEN__) + || defined (__CYGWIN32__) || defined (__MACHTEN__) || defined (hpux) \ + || defined (_AIX) || (defined (__svr4__) && defined (i386)) \ + || defined (__Lynx__) char c; int nread; int good_one = 0; @@ -359,34 +364,37 @@ getc_immediate_common (stream, ch, end_of_file, avail, waiting) { 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. */ + + /* Set RAW mode, with no echo */ + termios_rec.c_lflag = termios_rec.c_lflag & ~ICANON & ~ECHO; + +#if defined(linux) || defined (sun) || defined (sgi) || defined (__EMX__) \ + || defined (__osf__) || defined (__MACHTEN__) || defined (hpux) \ + || defined (_AIX) || (defined (__svr4__) && defined (i386)) \ + || defined (__Lynx__) + 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; + 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; + termios_rec.c_cc[VMIN] = waiting; + termios_rec.c_cc[VTIME] = 0; #endif #endif - tcsetattr (fd, TCSANOW, &termios_rec); + tcsetattr (fd, TCSANOW, &termios_rec); - /* Read() is used here instead of fread(), because fread() doesn't + while (! good_one) + { + /* 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) { @@ -414,9 +422,7 @@ getc_immediate_common (stream, ch, end_of_file, avail, waiting) good_one = 1; } else - { - good_one = 0; - } + good_one = 0; } tcsetattr (fd, TCSANOW, &otermios_rec); @@ -424,8 +430,7 @@ getc_immediate_common (stream, ch, end_of_file, avail, waiting) } else -#else -#if defined (VMS) +#elif defined (VMS) int fd = fileno (stream); if (isatty (fd)) @@ -435,6 +440,7 @@ getc_immediate_common (stream, ch, end_of_file, avail, waiting) decc$bsd_initscr (); initted = 1; } + decc$bsd_cbreak (); *ch = decc$bsd_wgetch (decc$ga_stdscr); @@ -447,8 +453,7 @@ getc_immediate_common (stream, ch, end_of_file, avail, waiting) decc$bsd_nocbreak (); } else -#else -#if defined (__MINGW32__) +#elif defined (__MINGW32__) int fd = fileno (stream); int char_waiting; int eot_ch = 4; /* Ctrl-D */ @@ -457,8 +462,8 @@ getc_immediate_common (stream, ch, end_of_file, avail, waiting) { if (waiting) { - *ch = getch(); - (*winflush_function)(); + *ch = getch (); + (*winflush_function) (); if (*ch == eot_ch) *end_of_file = 1; @@ -474,8 +479,8 @@ getc_immediate_common (stream, ch, end_of_file, avail, waiting) if (char_waiting == 1) { *avail = 1; - *ch = getch(); - (*winflush_function)(); + *ch = getch (); + (*winflush_function) (); if (*ch == eot_ch) *end_of_file = 1; @@ -490,13 +495,94 @@ getc_immediate_common (stream, ch, end_of_file, avail, waiting) } } else -#endif -#endif +#elif defined (__vxworks) + /* Bit masks of file descriptors to read from. */ + struct fd_set readFds; + /* Timeout before select returns if nothing can be read. */ + struct timeval timeOut; + char c; + int fd = fileno (stream); + int nread; + int option; + int readable; + int status; + int width; + + if (isatty (fd)) + { + /* If we do not want to wait, we have to set up fd in RAW mode. This + should be done outside this function as setting fd in RAW mode under + vxWorks flushes the buffer of fd. If the RAW mode was set here, the + buffer would be empty and we would always return that no character + is available */ + if (! waiting) + { + /* Initialization of timeOut for its use with select. */ + timeOut.tv_sec = 0; + timeOut.tv_usec = 0; + + /* Initialization of readFds for its use with select; + FD is the only file descriptor to be monitored */ + FD_ZERO (&readFds); + FD_SET (fd, &readFds); + width = 2; + + /* We do all this processing to emulate a non blocking read. */ + readable = select (width, &readFds, NULL, NULL, &timeOut); + if (readable == ERROR) + *avail = -1, *end_of_file = -1; + /* No character available in input. */ + else if (readable == 0) + *avail = 0, *end_of_file = 0; + else + { + nread = read (fd, &c, 1); + if (nread > 0) + *avail = 1, *end_of_file = 0; + /* End Of File. */ + else if (nread == 0) + *avail = 0, *end_of_file = 1; + /* Error. */ + else + *avail = -1, *end_of_file = -1; + } + } + + /* We have to wait until we get a character */ + else + { + *avail = -1; + *end_of_file = -1; + + /* Save the current mode of FD. */ + option = ioctl (fd, FIOGETOPTIONS, 0); + + /* Set FD in RAW mode. */ + status = ioctl (fd, FIOSETOPTIONS, OPT_RAW); + if (status != -1) + { + nread = read (fd, &c, 1); + if (nread > 0) + *avail = 1, *end_of_file = 0; + /* End of file. */ + else if (nread == 0) + *avail = 0, *end_of_file = 1; + /* Else there is an ERROR. */ + } + + /* Revert FD to its previous mode. */ + status = ioctl (fd, FIOSETOPTIONS, option); + } + + *ch = c; + } + else #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. */ + supported systems; which means that for non supported systems, + get_immediate may wait for a carriage return on terminals. */ *ch = fgetc (stream); if (feof (stream)) { @@ -584,7 +670,7 @@ extern void (*Unlock_Task) PARAMS ((void)); 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 *, +extern void struct tm *__gnat_localtime_r PARAMS ((const time_t *, struct tm *)); struct tm * |
