From 21cce426d844c64dac5de7985b97857bb3724e88 Mon Sep 17 00:00:00 2001
From: Jonathan <jonathanslew@outlook.com>
Date: Tue, 29 May 2018 10:15:19 -0700
Subject: fixes seg fault on concurrentKernels, speeds up
 concurrent_streams_empty, adds check for null stream case on
 cudaStreamWaitEvent

---
 src/stream_manager.cc | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/stream_manager.cc')

diff --git a/src/stream_manager.cc b/src/stream_manager.cc
index 547e06b..697d6ec 100644
--- a/src/stream_manager.cc
+++ b/src/stream_manager.cc
@@ -375,6 +375,8 @@ void stream_manager::destroy_stream( CUstream_st *stream )
 bool stream_manager::concurrent_streams_empty()
 {
     bool result = true;
+    if (m_streams.empty())
+       return true;
     // called by gpu simulation thread
     std::list<struct CUstream_st *>::iterator s;
     for( s=m_streams.begin(); s!=m_streams.end();++s ) {
@@ -382,6 +384,7 @@ bool stream_manager::concurrent_streams_empty()
         if( !stream->empty() ) {
             //stream->print(stdout);
             result = false;
+            break;
         }
     }
     return result;
-- 
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