/* Serial interface for local (hardwired) serial ports on Un*x like systems
Copyright 1992, 1993, 1994, 1998 Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-This program 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 of the License, or
-(at your option) any later version.
+ This program 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 of the License, or
+ (at your option) any later version.
-This program 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.
+ This program 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 program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "serial.h"
#ifdef HAVE_TERMIOS
struct hardwire_ttystate
-{
- struct termios termios;
-};
+ {
+ struct termios termios;
+ };
#endif /* termios */
#ifdef HAVE_TERMIO
bewildering. So we don't attempt it. */
struct hardwire_ttystate
-{
- struct termio termio;
-};
+ {
+ struct termio termio;
+ };
#endif /* termio */
#ifdef HAVE_SGTTY
#include <sys/time.h>
struct hardwire_ttystate
-{
- struct sgttyb sgttyb;
- struct tchars tc;
- struct ltchars ltc;
- /* Line discipline flags. */
- int lmode;
-};
+ {
+ struct sgttyb sgttyb;
+ struct tchars tc;
+ struct ltchars ltc;
+ /* Line discipline flags. */
+ int lmode;
+ };
#endif /* sgtty */
static int hardwire_open PARAMS ((serial_t scb, const char *name));
static int hardwire_setbaudrate PARAMS ((serial_t scb, int rate));
static int hardwire_write PARAMS ((serial_t scb, const char *str, int len));
static void hardwire_close PARAMS ((serial_t scb));
-static int get_tty_state PARAMS ((serial_t scb, struct hardwire_ttystate *state));
-static int set_tty_state PARAMS ((serial_t scb, struct hardwire_ttystate *state));
+static int get_tty_state PARAMS ((serial_t scb, struct hardwire_ttystate * state));
+static int set_tty_state PARAMS ((serial_t scb, struct hardwire_ttystate * state));
static serial_ttystate hardwire_get_tty_state PARAMS ((serial_t scb));
static int hardwire_set_tty_state PARAMS ((serial_t scb, serial_ttystate state));
static int hardwire_noflush_set_tty_state PARAMS ((serial_t, serial_ttystate,
static int hardwire_send_break PARAMS ((serial_t));
static int hardwire_setstopbits PARAMS ((serial_t, int));
-#ifdef __CYGWIN32__
-extern void ui_loop_hook PARAMS ((int));
-#endif
+void _initialize_ser_hardwire PARAMS ((void));
+
+extern int (*ui_loop_hook) PARAMS ((int));
/* Open up a real live device for serial I/O */
static int
-hardwire_open(scb, name)
+hardwire_open (scb, name)
serial_t scb;
const char *name;
{
}
static int
-get_tty_state(scb, state)
+get_tty_state (scb, state)
serial_t scb;
struct hardwire_ttystate *state;
{
#ifdef HAVE_TERMIOS
- extern int errno;
-
- if (tcgetattr(scb->fd, &state->termios) < 0)
+ if (tcgetattr (scb->fd, &state->termios) < 0)
return -1;
return 0;
}
static int
-set_tty_state(scb, state)
+set_tty_state (scb, state)
serial_t scb;
struct hardwire_ttystate *state;
{
#ifdef HAVE_TERMIOS
- if (tcsetattr(scb->fd, TCSANOW, &state->termios) < 0)
+ if (tcsetattr (scb->fd, TCSANOW, &state->termios) < 0)
return -1;
return 0;
}
static serial_ttystate
-hardwire_get_tty_state(scb)
+hardwire_get_tty_state (scb)
serial_t scb;
{
struct hardwire_ttystate *state;
- state = (struct hardwire_ttystate *)xmalloc(sizeof *state);
+ state = (struct hardwire_ttystate *) xmalloc (sizeof *state);
- if (get_tty_state(scb, state))
+ if (get_tty_state (scb, state))
return NULL;
- return (serial_ttystate)state;
+ return (serial_ttystate) state;
}
static int
-hardwire_set_tty_state(scb, ttystate)
+hardwire_set_tty_state (scb, ttystate)
serial_t scb;
serial_ttystate ttystate;
{
struct hardwire_ttystate *state;
- state = (struct hardwire_ttystate *)ttystate;
+ state = (struct hardwire_ttystate *) ttystate;
- return set_tty_state(scb, state);
+ return set_tty_state (scb, state);
}
static int
struct hardwire_ttystate *state = (struct hardwire_ttystate *) old_ttystate;
#endif
- new_state = *(struct hardwire_ttystate *)new_ttystate;
+ new_state = *(struct hardwire_ttystate *) new_ttystate;
/* Don't change in or out of raw mode; we don't want to flush input.
termio and termios have no such restriction; for them flushing input
printf_filtered ("sgttyb.sg_flags = 0x%x.\n", state->sgttyb.sg_flags);
printf_filtered ("tchars: ");
- for (i = 0; i < (int)sizeof (struct tchars); i++)
- printf_filtered ("0x%x ", ((unsigned char *)&state->tc)[i]);
+ for (i = 0; i < (int) sizeof (struct tchars); i++)
+ printf_filtered ("0x%x ", ((unsigned char *) &state->tc)[i]);
printf_filtered ("\n");
printf_filtered ("ltchars: ");
- for (i = 0; i < (int)sizeof (struct ltchars); i++)
- printf_filtered ("0x%x ", ((unsigned char *)&state->ltc)[i]);
+ for (i = 0; i < (int) sizeof (struct ltchars); i++)
+ printf_filtered ("0x%x ", ((unsigned char *) &state->ltc)[i]);
printf_filtered ("\n");
printf_filtered ("lmode: 0x%x\n", state->lmode);
return (ioctl (scb->fd, TIOCSETP, &state.sgttyb));
}
}
-#endif
+#endif
}
static int
#ifdef HAVE_SGTTY
/* This flushes both input and output, but we can't do better. */
return ioctl (scb->fd, TIOCFLUSH, 0);
-#endif
+#endif
}
static int
#ifdef HAVE_SGTTY
/* This flushes both input and output, but we can't do better. */
return ioctl (scb->fd, TIOCFLUSH, 0);
-#endif
+#endif
}
static int
status = ioctl (scb->fd, TIOCCBRK, 0);
return status;
}
-#endif
+#endif
}
static void
-hardwire_raw(scb)
+hardwire_raw (scb)
serial_t scb;
{
struct hardwire_ttystate state;
- if (get_tty_state(scb, &state))
- fprintf_unfiltered(gdb_stderr, "get_tty_state failed: %s\n", safe_strerror(errno));
+ if (get_tty_state (scb, &state))
+ fprintf_unfiltered (gdb_stderr, "get_tty_state failed: %s\n", safe_strerror (errno));
#ifdef HAVE_TERMIOS
state.termios.c_iflag = 0;
state.termios.c_oflag = 0;
state.termios.c_lflag = 0;
- state.termios.c_cflag &= ~(CSIZE|PARENB);
+ state.termios.c_cflag &= ~(CSIZE | PARENB);
state.termios.c_cflag |= CLOCAL | CS8;
state.termios.c_cc[VMIN] = 0;
state.termios.c_cc[VTIME] = 0;
state.termio.c_iflag = 0;
state.termio.c_oflag = 0;
state.termio.c_lflag = 0;
- state.termio.c_cflag &= ~(CSIZE|PARENB);
+ state.termio.c_cflag &= ~(CSIZE | PARENB);
state.termio.c_cflag |= CLOCAL | CS8;
state.termio.c_cc[VMIN] = 0;
state.termio.c_cc[VTIME] = 0;
scb->current_timeout = 0;
if (set_tty_state (scb, &state))
- fprintf_unfiltered(gdb_stderr, "set_tty_state failed: %s\n", safe_strerror(errno));
+ fprintf_unfiltered (gdb_stderr, "set_tty_state failed: %s\n", safe_strerror (errno));
}
/* Wait for input on scb, with timeout seconds. Returns 0 on success,
*/
static int
-wait_for(scb, timeout)
+wait_for (scb, timeout)
serial_t scb;
int timeout;
{
-#ifndef __CYGWIN32__
- scb->timeout_remaining = 0;
-#endif
-
#ifdef HAVE_SGTTY
{
struct timeval tv;
tv.tv_sec = timeout;
tv.tv_usec = 0;
- FD_SET(scb->fd, &readfds);
+ FD_SET (scb->fd, &readfds);
while (1)
{
int numfds;
if (timeout >= 0)
- numfds = select(scb->fd+1, &readfds, 0, 0, &tv);
+ numfds = select (scb->fd + 1, &readfds, 0, 0, &tv);
else
- numfds = select(scb->fd+1, &readfds, 0, 0, 0);
+ numfds = select (scb->fd + 1, &readfds, 0, 0, 0);
if (numfds <= 0)
if (numfds == 0)
return 0;
}
}
-#endif /* HAVE_SGTTY */
+#endif /* HAVE_SGTTY */
#if defined HAVE_TERMIO || defined HAVE_TERMIOS
if (timeout == scb->current_timeout)
{
struct hardwire_ttystate state;
- if (get_tty_state(scb, &state))
- fprintf_unfiltered(gdb_stderr, "get_tty_state failed: %s\n", safe_strerror(errno));
+ if (get_tty_state (scb, &state))
+ fprintf_unfiltered (gdb_stderr, "get_tty_state failed: %s\n", safe_strerror (errno));
#ifdef HAVE_TERMIOS
if (timeout < 0)
#endif
if (set_tty_state (scb, &state))
- fprintf_unfiltered(gdb_stderr, "set_tty_state failed: %s\n", safe_strerror(errno));
+ fprintf_unfiltered (gdb_stderr, "set_tty_state failed: %s\n", safe_strerror (errno));
return 0;
}
-#endif /* HAVE_TERMIO || HAVE_TERMIOS */
+#endif /* HAVE_TERMIO || HAVE_TERMIOS */
}
/* Read a character with user-specified timeout. TIMEOUT is number of seconds
char if successful. Returns SERIAL_TIMEOUT if timeout expired, EOF if line
dropped dead, or SERIAL_ERROR for any other error (see errno in that case). */
static int
-hardwire_readchar(scb, timeout)
+hardwire_readchar (scb, timeout)
serial_t scb;
int timeout;
{
- int status, t;
+ int status, delta;
+ int detach = 0;
if (scb->bufcnt-- > 0)
return *scb->bufp++;
-#ifdef __CYGWIN32__
if (timeout > 0)
timeout++;
-#endif
+ /* We have to be able to keep the GUI alive here, so we break the original
+ timeout into steps of 1 second, running the "keep the GUI alive" hook
+ each time through the loop.
+ Also, timeout = 0 means to poll, so we just set the delta to 0, so we
+ will only go through the loop once. */
+
+ delta = (timeout == 0 ? 0 : 1);
while (1)
{
-#ifdef __CYGWIN32__
- t = timeout == 0 ? 0 : 1;
- scb->timeout_remaining = timeout < 0 ? timeout : timeout - t;
- status = wait_for (scb, t);
- /* -2 means disable timer */
+ /* N.B. The UI may destroy our world (for instance by calling
+ remote_stop,) in which case we want to get out of here as
+ quickly as possible. It is not safe to touch scb, since
+ someone else might have freed it. The ui_loop_hook signals that
+ we should exit by returning 1. */
+
if (ui_loop_hook)
- ui_loop_hook (-2);
-#else
- status = wait_for (scb, timeout);
-#endif
+ detach = ui_loop_hook (0);
+
+ if (detach)
+ return SERIAL_TIMEOUT;
+
+ scb->timeout_remaining = (timeout < 0 ? timeout : timeout - delta);
+ status = wait_for (scb, delta);
+
if (status < 0)
return status;
if (scb->bufcnt == 0)
{
/* Zero characters means timeout (it could also be EOF, but
- we don't (yet at least) distinguish). */
+ we don't (yet at least) distinguish). */
if (scb->timeout_remaining > 0)
{
timeout = scb->timeout_remaining;
continue;
}
-#ifdef __CYGWIN32__
- else if (scb->timeout_remaining < 0)
- continue;
-#endif
+ else if (scb->timeout_remaining < 0)
+ continue;
else
return SERIAL_TIMEOUT;
}
}
baudtab[] =
{
- {50, B50},
- {75, B75},
- {110, B110},
- {134, B134},
- {150, B150},
- {200, B200},
- {300, B300},
- {600, B600},
- {1200, B1200},
- {1800, B1800},
- {2400, B2400},
- {4800, B4800},
- {9600, B9600},
- {19200, B19200},
- {38400, B38400},
+ {
+ 50, B50
+ }
+ ,
+ {
+ 75, B75
+ }
+ ,
+ {
+ 110, B110
+ }
+ ,
+ {
+ 134, B134
+ }
+ ,
+ {
+ 150, B150
+ }
+ ,
+ {
+ 200, B200
+ }
+ ,
+ {
+ 300, B300
+ }
+ ,
+ {
+ 600, B600
+ }
+ ,
+ {
+ 1200, B1200
+ }
+ ,
+ {
+ 1800, B1800
+ }
+ ,
+ {
+ 2400, B2400
+ }
+ ,
+ {
+ 4800, B4800
+ }
+ ,
+ {
+ 9600, B9600
+ }
+ ,
+ {
+ 19200, B19200
+ }
+ ,
+ {
+ 38400, B38400
+ }
+ ,
#ifdef B57600
- {57600, B57600},
+ {
+ 57600, B57600
+ }
+ ,
#endif
#ifdef B115200
- {115200, B115200},
+ {
+ 115200, B115200
+ }
+ ,
#endif
#ifdef B230400
- {230400, B230400},
+ {
+ 230400, B230400
+ }
+ ,
#endif
#ifdef B460800
- {460800, B460800},
+ {
+ 460800, B460800
+ }
+ ,
#endif
- {-1, -1},
+ {
+ -1, -1
+ }
+ ,
};
-static int
-rate_to_code(rate)
+static int
+rate_to_code (rate)
int rate;
{
int i;
for (i = 0; baudtab[i].rate != -1; i++)
- if (rate == baudtab[i].rate)
+ if (rate == baudtab[i].rate)
return baudtab[i].code;
return -1;
}
static int
-hardwire_setbaudrate(scb, rate)
+hardwire_setbaudrate (scb, rate)
serial_t scb;
int rate;
{
struct hardwire_ttystate state;
- if (get_tty_state(scb, &state))
+ if (get_tty_state (scb, &state))
return -1;
#ifdef HAVE_TERMIOS
}
static int
-hardwire_setstopbits(scb, num)
+hardwire_setstopbits (scb, num)
serial_t scb;
int num;
{
struct hardwire_ttystate state;
int newbit;
- if (get_tty_state(scb, &state))
+ if (get_tty_state (scb, &state))
return -1;
switch (num)
if (!newbit)
state.termios.c_cflag &= ~CSTOPB;
else
- state.termios.c_cflag |= CSTOPB; /* two bits */
+ state.termios.c_cflag |= CSTOPB; /* two bits */
#endif
#ifdef HAVE_TERMIO
if (!newbit)
state.termio.c_cflag &= ~CSTOPB;
else
- state.termio.c_cflag |= CSTOPB; /* two bits */
+ state.termio.c_cflag |= CSTOPB; /* two bits */
#endif
#ifdef HAVE_SGTTY
}
static int
-hardwire_write(scb, str, len)
+hardwire_write (scb, str, len)
serial_t scb;
const char *str;
int len;
while (len > 0)
{
- cc = write(scb->fd, str, len);
+ cc = write (scb->fd, str, len);
if (cc < 0)
return 1;
}
static void
-hardwire_close(scb)
+hardwire_close (scb)
serial_t scb;
{
if (scb->fd < 0)
return;
- close(scb->fd);
+ close (scb->fd);
scb->fd = -1;
}
projects / deliverable / binutils-gdb.git / blobdiff