From 4d3cf68a21a55e5d2825b0ad4b82ee7747b7a82b Mon Sep 17 00:00:00 2001
From: Jeff Hill <johill@lanl.gov>
Date: Mon, 16 Jul 2001 15:36:19 +0000
Subject: [PATCH] moved odd ball delay == 0.0 is wait forever behavior into
 legacy ca_pend_io interface.

---
 src/ca/access.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/ca/access.cpp b/src/ca/access.cpp
index 433e227d2..a9bca73df 100644
--- a/src/ca/access.cpp
+++ b/src/ca/access.cpp
@@ -631,9 +631,9 @@ extern "C" int epicsShareAPI ca_pend_event (ca_real timeout)
         return status;
     }
 
+    // preserve past odd ball behavior of waiting forever when
+    // the delay is zero
     if ( timeout == 0.0 ) {
-        // preserve past odd ball behavior of waiting forever when
-        // the delay is zero
         while ( true ) {
             pcac->pendEvent ( 60.0 );
         }
@@ -653,6 +653,12 @@ extern "C" int epicsShareAPI ca_pend_io (ca_real timeout)
         return status;
     }
 
+    // preserve past odd ball behavior of waiting forever when
+    // the delay is zero
+    if ( timeout == 0.0 ) {
+        return pcac->pendIO ( DBL_MAX );
+    }
+
     return pcac->pendIO ( timeout );
 }