* mips-tdep.c (mips_gdbarch_init): Use Tag_GNU_MIPS_ABI_FP to

[deliverable/binutils-gdb.git] / gdb / serial.h

diff --git a/gdb/serial.h b/gdb/serial.h
index 89b66b452cf38052815c62a7dd5621fcefd05272..49ad4d11ad0b4d72c18931acf8dc99c9864e3932 100644 (file)
--- a/gdb/serial.h
+++ b/gdb/serial.h
@@ -1,6 +1,6 @@
 /* Remote serial support interface definitions for GDB, the GNU Debugger.
-   Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000
-   Free Software Foundation, Inc.
+   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2004,
+   2005, 2006, 2007 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -16,12 +16,16 @@
 
    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.  */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
 
 #ifndef SERIAL_H
 #define SERIAL_H
 
+#ifdef USE_WIN32API
+#include <windows.h>
+#endif
+
 struct ui_file;
 
 /* For most routines, if a failure is indicated, then errno should be
@@ -41,6 +45,10 @@ struct serial;
 
 extern struct serial *serial_open (const char *name);
 
+/* Find an already opened serial stream using a file handle.  */
+
+extern struct serial *serial_for_fd (int fd);
+
 /* Open a new serial stream using a file handle.  */
 
 extern struct serial *serial_fdopen (const int fd);
@@ -183,6 +191,11 @@ extern int serial_debug_p (struct serial *scb);
 struct serial
   {
     int fd;                    /* File descriptor */
+    /* File descriptor for a separate error stream that should be
+       immediately forwarded to gdb_stderr.  This may be -1.
+       If != -1, this descriptor should be non-blocking or
+       ops->avail should be non-NULL.  */
+    int error_fd;               
     struct serial_ops *ops;    /* Function vector */
     void *state;                       /* Local context info for open FD */
     serial_ttystate ttystate;  /* Not used (yet) */
@@ -238,6 +251,19 @@ struct serial_ops
     /* Perform a low-level write operation, writing (at most) COUNT
        bytes from BUF.  */
     int (*write_prim)(struct serial *scb, const void *buf, size_t count);
+    /* Return that number of bytes that can be read from FD
+       without blocking.  Return value of -1 means that the
+       the read will not block even if less that requested bytes
+       are available.  */
+    int (*avail)(struct serial *scb, int fd);
+
+#ifdef USE_WIN32API
+    /* Return a handle to wait on, indicating available data from SCB
+       when signaled, in *READ.  Return a handle indicating errors
+       in *EXCEPT.  */
+    void (*wait_handle) (struct serial *scb, HANDLE *read, HANDLE *except);
+    void (*done_wait_handle) (struct serial *scb);
+#endif /* USE_WIN32API */
   };
 
 /* Add a new serial interface to the interface list */
@@ -248,4 +274,15 @@ extern void serial_add_interface (struct serial_ops * optable);
 
 extern void serial_log_command (const char *);
 
+#ifdef USE_WIN32API
+
+/* Windows-only: find or create handles that we can wait on for this
+   serial device.  */
+extern void serial_wait_handle (struct serial *, HANDLE *, HANDLE *);
+
+/* Windows-only: signal that we are done with the wait handles.  */
+extern void serial_done_wait_handle (struct serial *);
+
+#endif /* USE_WIN32API */
+
 #endif /* SERIAL_H */