From 1b5608282e6c99a8cc0bd83a99614ba424e111c7 Mon Sep 17 00:00:00 2001
From: Chris Hanson <org/chris-hanson/cph>
Date: Wed, 22 Jan 2003 18:42:32 +0000
Subject: [PATCH] Pay attention to POLLERR and POLLHUP values returned by
 poll().

---
 v7/src/microcode/osio.h   | 4 +++-
 v7/src/microcode/prosio.c | 6 ++++--
 v7/src/microcode/uxio.c   | 6 ++++--
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/v7/src/microcode/osio.h b/v7/src/microcode/osio.h
index ce70c2e4c..79e173bf5 100644
--- a/v7/src/microcode/osio.h
+++ b/v7/src/microcode/osio.h
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Id: osio.h,v 1.17 2003/01/22 02:03:59 cph Exp $
+$Id: osio.h,v 1.18 2003/01/22 18:42:20 cph Exp $
 
 Copyright 1990,1991,1993,1994,1995,1997 Massachusetts Institute of Technology
 Copyright 2000,2003 Massachusetts Institute of Technology
@@ -85,6 +85,8 @@ extern CONST int OS_have_select_p;
 typedef PTR select_registry_t;
 #define SELECT_MODE_READ 1
 #define SELECT_MODE_WRITE 2
+#define SELECT_MODE_ERROR 4
+#define SELECT_MODE_HUP 8
 
 #define SELECT_INTERRUPT (-1)
 #define SELECT_PROCESS_STATUS_CHANGE (-2)
diff --git a/v7/src/microcode/prosio.c b/v7/src/microcode/prosio.c
index 646aebec0..4f36a73d6 100644
--- a/v7/src/microcode/prosio.c
+++ b/v7/src/microcode/prosio.c
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Id: prosio.c,v 1.20 2003/01/22 02:04:06 cph Exp $
+$Id: prosio.c,v 1.21 2003/01/22 18:42:26 cph Exp $
 
 Copyright 1987,1990,1991,1992,1993,1994 Massachusetts Institute of Technology
 Copyright 1996,1997,2001,2003 Massachusetts Institute of Technology
@@ -327,7 +327,9 @@ DEFINE_PRIMITIVE ("TEST-SELECT-REGISTRY", Prim_test_selreg, 4, 4, 0)
 	    if (mode > 0)
 	      {
 		SCHEME_OBJECT sfd = (long_to_integer (fd));
-		if ((mode & SELECT_MODE_READ) != 0)
+		if (((mode & SELECT_MODE_READ) != 0)
+		    || ((mode & SELECT_MODE_ERROR) != 0)
+		    || ((mode & SELECT_MODE_HUP) != 0))
 		  {
 		    VECTOR_SET (vr, ir, sfd);
 		    ir += 1;
diff --git a/v7/src/microcode/uxio.c b/v7/src/microcode/uxio.c
index 848579777..1590fc33c 100644
--- a/v7/src/microcode/uxio.c
+++ b/v7/src/microcode/uxio.c
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Id: uxio.c,v 1.48 2003/01/22 02:04:13 cph Exp $
+$Id: uxio.c,v 1.49 2003/01/22 18:42:32 cph Exp $
 
 Copyright 1990,1991,1992,1993,1994,1995 Massachusetts Institute of Technology
 Copyright 1996,1997,1998,2000,2001,2003 Massachusetts Institute of Technology
@@ -374,7 +374,9 @@ struct select_registry_s
 
 #define ENCODE_MODE(revents)						\
 (((((revents) & POLLIN) != 0) ? SELECT_MODE_READ : 0)			\
- | ((((revents) & POLLOUT) != 0) ? SELECT_MODE_WRITE : 0))
+ | ((((revents) & POLLOUT) != 0) ? SELECT_MODE_WRITE : 0)		\
+ | ((((revents) & POLLERR) != 0) ? SELECT_MODE_ERROR : 0)		\
+ | ((((revents) & POLLHUP) != 0) ? SELECT_MODE_HUP : 0))
 
 select_registry_t
 DEFUN_VOID (OS_allocate_select_registry)
-- 
2.25.1