/* Generic serial interface routines
- Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include <ctype.h>
static char *serial_logfile = NULL;
static struct ui_file *serial_logfp = NULL;
-static struct serial_ops *serial_interface_lookup (char *);
+static struct serial_ops *serial_interface_lookup (const char *);
static void serial_logchar (struct ui_file *stream, int ch_type, int ch, int timeout);
static const char logbase_hex[] = "hex";
static const char logbase_octal[] = "octal";
\f
static struct serial_ops *
-serial_interface_lookup (char *name)
+serial_interface_lookup (const char *name)
{
struct serial_ops *ops;
else if (strncmp (name, "|", 1) == 0)
{
ops = serial_interface_lookup ("pipe");
- open_name = name + 1; /* discard ``|'' */
+ /* Discard ``|'' and any space before the command itself. */
+ ++open_name;
+ while (isspace (*open_name))
+ ++open_name;
}
/* Check for a colon, suggesting an IP address/port pair.
Do this *after* checking for all the interesting prefixes. We
scb->bufcnt = 0;
scb->bufp = scb->buf;
+ scb->error_fd = -1;
- if (scb->ops->open (scb, open_name))
+ /* `...->open (...)' would get expanded by an the open(2) syscall macro. */
+ if ((*scb->ops->open) (scb, open_name))
{
xfree (scb);
return NULL;
serial_for_fd (int fd)
{
struct serial *scb;
- struct serial_ops *ops;
for (scb = scb_base; scb; scb = scb->next)
if (scb->fd == fd)
return NULL;
}
-struct serial *
-serial_fdopen (const int fd)
+/* Open a new serial stream using a file handle, using serial
+ interface ops OPS. */
+
+static struct serial *
+serial_fdopen_ops (const int fd, struct serial_ops *ops)
{
struct serial *scb;
- struct serial_ops *ops;
- for (scb = scb_base; scb; scb = scb->next)
- if (scb->fd == fd)
- {
- scb->refcnt++;
- return scb;
- }
+ scb = serial_for_fd (fd);
+ if (scb)
+ {
+ scb->refcnt++;
+ return scb;
+ }
- ops = serial_interface_lookup ("terminal");
if (!ops)
- ops = serial_interface_lookup ("hardwire");
+ {
+ ops = serial_interface_lookup ("terminal");
+ if (!ops)
+ ops = serial_interface_lookup ("hardwire");
+ }
if (!ops)
return NULL;
scb->bufcnt = 0;
scb->bufp = scb->buf;
-
- scb->fd = fd;
+ scb->error_fd = -1;
scb->name = NULL;
scb->next = scb_base;
scb->async_context = NULL;
scb_base = scb;
+ if ((ops->fdopen) != NULL)
+ (*ops->fdopen) (scb, fd);
+ else
+ scb->fd = fd;
+
last_serial_opened = scb;
return scb;
}
+struct serial *
+serial_fdopen (const int fd)
+{
+ return serial_fdopen_ops (fd, NULL);
+}
+
static void
do_serial_close (struct serial *scb, int really_close)
{
in case we are getting ready to dump core or something. */
gdb_flush (serial_logfp);
}
+ if (serial_debug_p (scb))
+ {
+ int count;
+
+ for (count = 0; count < len; count++)
+ {
+ fprintf_unfiltered (gdb_stdlog, "[");
+ serial_logchar (gdb_stdlog, 'w', str[count] & 0xff, 0);
+ fprintf_unfiltered (gdb_stdlog, "]");
+ }
+ gdb_flush (gdb_stdlog);
+ }
return (scb->ops->write (scb, str, len));
}
serial_event_ftype *handler,
void *context)
{
- /* Only change mode if there is a need. */
- if ((scb->async_handler == NULL)
- != (handler == NULL))
- scb->ops->async (scb, handler != NULL);
+ int changed = ((scb->async_handler == NULL) != (handler == NULL));
+
scb->async_handler = handler;
scb->async_context = context;
+ /* Only change mode if there is a need. */
+ if (changed)
+ scb->ops->async (scb, handler != NULL);
}
int
*except = NULL;
}
}
+
+void
+serial_done_wait_handle (struct serial *scb)
+{
+ if (scb->ops->done_wait_handle)
+ scb->ops->done_wait_handle (scb);
+}
#endif
+int
+serial_pipe (struct serial *scbs[2])
+{
+ struct serial_ops *ops;
+ int fildes[2];
+
+ ops = serial_interface_lookup ("pipe");
+ if (!ops)
+ {
+ errno = ENOSYS;
+ return -1;
+ }
+
+ if (gdb_pipe (fildes) == -1)
+ return -1;
+
+ scbs[0] = serial_fdopen_ops (fildes[0], ops);
+ scbs[1] = serial_fdopen_ops (fildes[1], ops);
+ return 0;
+}
+
#if 0
/* The connect command is #if 0 because I hadn't thought of an elegant
way to wait for I/O on two `struct serial *'s simultaneously. Two