From 0566febf9da32f7cd1b4b21058241afe4cf22e57 Mon Sep 17 00:00:00 2001
From: Chris Hanson <org/chris-hanson/cph>
Date: Fri, 10 Aug 1990 02:13:44 +0000
Subject: [PATCH] Move non-blocking I/O definitions to "ux.h".

---
 v7/src/microcode/ux.h   | 18 +++++++++++++-----
 v7/src/microcode/uxio.c | 24 +-----------------------
 2 files changed, 14 insertions(+), 28 deletions(-)

diff --git a/v7/src/microcode/ux.h b/v7/src/microcode/ux.h
index 4f990b017..e2f5c652b 100644
--- a/v7/src/microcode/ux.h
+++ b/v7/src/microcode/ux.h
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/ux.h,v 1.7 1990/07/30 23:16:25 jinx Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/ux.h,v 1.8 1990/08/10 02:13:28 cph Exp $
 
 Copyright (c) 1988, 1989, 1990 Massachusetts Institute of Technology
 
@@ -91,6 +91,9 @@ extern void EXFUN (error_system_call, (int code, CONST char * name));
 #define HAVE_WAITPID
 #define VOID_SIGNAL_HANDLERS
 
+#define ERRNO_NONBLOCK EAGAIN
+#define FCNTL_NONBLOCK O_NONBLOCK
+
 #else /* not _POSIX */
 #ifdef _BSD
 
@@ -106,12 +109,11 @@ extern void EXFUN (error_system_call, (int code, CONST char * name));
 #define HAVE_DIR
 #define HAVE_DUP2
 #define HAVE_FCNTL
-#define HAVE_FNDELAY
 #define HAVE_GETWD
 #define HAVE_MKDIR
 #define HAVE_RENAME
 #define HAVE_RMDIR
-#define HAVE_SELECT		/* does POSIX allow this */
+#define HAVE_SELECT
 #define HAVE_TIMES
 #define HAVE_WAIT3
 /* MORE/BSD has this -- do all 4.3 implementations? */
@@ -122,6 +124,9 @@ extern void EXFUN (error_system_call, (int code, CONST char * name));
 #define VOID_SIGNAL_HANDLERS
 #endif
 
+#define ERRNO_NONBLOCK EWOULDBLOCK
+#define FCNTL_NONBLOCK FNDELAY
+
 #else /* not _BSD */
 #ifdef _SYSV
 
@@ -131,11 +136,14 @@ extern void EXFUN (error_system_call, (int code, CONST char * name));
 
 #define HAVE_APPEND
 #define HAVE_FCNTL
-#define HAVE_ONDELAY
 #define HAVE_GETCWD
 #define HAVE_TERMIO
 #define HAVE_TIMES
 
+#define AMBIGUOUS_NONBLOCK
+#define ERRNO_NONBLOCK EAGAIN
+#define FCNTL_NONBLOCK O_NDELAY
+
 #ifdef _SYSV3
 
 #include <dirent.h>
@@ -157,7 +165,7 @@ extern void EXFUN (error_system_call, (int code, CONST char * name));
 #define HAVE_MKDIR
 #define HAVE_RENAME
 #define HAVE_RMDIR
-#define HAVE_SELECT		/* does POSIX allow this */
+#define HAVE_SELECT
 #define HAVE_WAIT3
 
 #if (_HPUX_VERSION < 65)
diff --git a/v7/src/microcode/uxio.c b/v7/src/microcode/uxio.c
index b07d9eaa2..4186437c0 100644
--- a/v7/src/microcode/uxio.c
+++ b/v7/src/microcode/uxio.c
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/uxio.c,v 1.3 1990/07/28 18:56:56 jinx Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/uxio.c,v 1.4 1990/08/10 02:13:44 cph Exp $
 
 Copyright (c) 1990 Massachusetts Institute of Technology
 
@@ -117,28 +117,6 @@ DEFUN (OS_channel_type, (channel), Tchannel channel)
   return (CHANNEL_TYPE (channel));
 }
 
-#ifdef _POSIX
-
-#define ERRNO_NONBLOCK EAGAIN
-#define FCNTL_NONBLOCK O_NONBLOCK
-
-#else /* not _POSIX */
-#ifdef HAVE_ONDELAY
-
-#define AMBIGUOUS_NONBLOCK
-#define ERRNO_NONBLOCK EAGAIN
-#define FCNTL_NONBLOCK O_NDELAY
-
-#else /* not HAVE_ONDELAY */
-#ifdef HAVE_FNDELAY
-
-#define ERRNO_NONBLOCK EWOULDBLOCK
-#define FCNTL_NONBLOCK FNDELAY
-
-#endif /* HAVE_FNDELAY */
-#endif /* HAVE_ONDELAY */
-#endif /* not _POSIX */
-
 long
 DEFUN (OS_channel_read, (channel, buffer, nbytes),
        Tchannel channel AND
-- 
2.25.1