From 00cec8039197eafd15667cb991e31f95f4e7c8eb Mon Sep 17 00:00:00 2001
From: Richard Frith-MacDonald <rfm@gnu.org>
Date: Sat, 18 Jun 2016 06:42:12 +0000
Subject: [PATCH] Unchedule I/O events when entering an error state

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@39875 72102866-910b-0410-8b05-ffd578937521
---
 Source/GSStream.h |  2 +-
 Source/GSStream.m | 19 +++++++++++++++++--
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/Source/GSStream.h b/Source/GSStream.h
index d87c4fe51..4f270dd22 100644
--- a/Source/GSStream.h
+++ b/Source/GSStream.h
@@ -75,7 +75,7 @@
 { \
   id		         _delegate;	/* Delegate controls operation.	*/\
   NSMutableDictionary	*_properties;	/* storage for properties	*/\
-  BOOL                   _delegateValid;/* whether the delegate responds*/\
+  BOOL                  _delegateValid; /* whether the delegate responds*/\
   NSError               *_lastError;    /* last error occured           */\
   NSStreamStatus         _currentStatus;/* current status               */\
   NSMapTable		*_loops;	/* Run loops and their modes.	*/\
diff --git a/Source/GSStream.m b/Source/GSStream.m
index 5e2f5b394..bce1954ca 100644
--- a/Source/GSStream.m
+++ b/Source/GSStream.m
@@ -407,7 +407,7 @@ static RunLoopEventType typeForStream(NSStream *aStream)
 {
   NSDebugMLLog(@"NSStream", @"record error: %@ - %@", self, anError);
   ASSIGN(_lastError, anError);
-  _currentStatus = NSStreamStatusError;
+  [self _setStatus: NSStreamStatusError];
 }
 
 - (void) _resetEvents: (NSUInteger)mask
@@ -533,7 +533,22 @@ static RunLoopEventType typeForStream(NSStream *aStream)
 
 - (void) _setStatus: (NSStreamStatus)newStatus
 {
-  _currentStatus = newStatus;
+  if (_currentStatus != newStatus)
+    {
+      if (NSStreamStatusError == newStatus && NSCountMapTable(_loops) > 0)
+        {
+          /* After an error, we are in the run loops only to trigger
+           * errors, not for I/O, sop we must re-schedule in the right mode.
+           */
+          [self _unschedule];
+          _currentStatus = newStatus;
+          [self _schedule];
+        }
+      else
+        {
+          _currentStatus = newStatus;
+        }
+    }
 }
 
 - (BOOL) _unhandledData