* serial.h (gdb_pipe, serial_pipe): Declare.

	* serial.c (serial_interface_lookup): Take a const char pointer.
	(serial_fdopen): Rename to ...
	(serial_fdopen_ops): ... this.  Add an OPS parameter and use it.
	Call the OPS' fdopen function if there is one.
	(serial_fdopen): Rewrite as wrapper to serial_fdopen_ops.
	(serial_pipe): New.
	(struct serial_ops) <fdopen>: New field.

	* ser-mingw.c (free_pipe_state):
	(free_pipe_state): Close output on non-pex pipes.
	(pipe_windows_fdopen): New.
	(gdb_pipe): New.
	(_initialize_ser_windows): Register pipe_windows_fdopen.
	* ser-go32.c (gdb_pipe): New.
	* ser-pipe.c (pipe_close): Close file descriptor even if there's
	no state pointer.
	(pipe_ops): Delete.
	(gdb_pipe): New.

1 files changed, 14 insertions, 0 deletions

diff --git a/gdb/serial.h b/gdb/serial.h
index 7690501..d9ef684 100644
--- a/gdb/serial.h
+++ b/gdb/serial.h
@@ -56,6 +56,19 @@ extern struct serial *serial_fdopen (const int fd);
 
 extern void serial_close (struct serial *scb);
 
+/* Create a pipe, and put the read end in files[0], and the write end
+   in filde[1].  Returns 0 for success, negative value for error (in
+   which case errno contains the error).  */
+
+extern int gdb_pipe (int fildes[2]);
+
+/* Create a pipe with each end wrapped in a `struct serial' interface.
+   Put the read end in scbs[0], and the write end in scbs[1].  Returns
+   0 for success, negative value for error (in which case errno
+   contains the error).  */
+
+extern int serial_pipe (struct serial *scbs[2]);
+
 /* Push out all buffers and destroy SCB without closing the device.  */
 
 extern void serial_un_fdopen (struct serial *scb);
@@ -222,6 +235,7 @@ struct serial_ops
     struct serial_ops *next;
     int (*open) (struct serial *, const char *name);
     void (*close) (struct serial *);
+    int (*fdopen) (struct serial *, int fd);
     int (*readchar) (struct serial *, int timeout);
     int (*write) (struct serial *, const char *str, int len);
     /* Discard pending output */