From: Alexander Alekhin <alexander.a.alekhin@gmail.com>
Date: Sat, 28 Jul 2018 10:29:26 +0000 (+0000)
Subject: core(ocl): don't expose exceptions from OpenCL callback
X-Git-Tag: accepted/tizen/6.0/unified/20201030.111113~1^2~597^2~9^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=89528d7c3a9f2b5ea365f2ae4988390ab2ca71ab;p=platform%2Fupstream%2Fopencv.git

core(ocl): don't expose exceptions from OpenCL callback

to avoid silent crashes of OpenCL worker threads.
---

diff --git a/modules/core/src/ocl.cpp b/modules/core/src/ocl.cpp
index cc6feac..05f128b 100644
--- a/modules/core/src/ocl.cpp
+++ b/modules/core/src/ocl.cpp
@@ -2834,7 +2834,22 @@ extern "C" {
 
 static void CL_CALLBACK oclCleanupCallback(cl_event e, cl_int, void *p)
 {
-    ((cv::ocl::Kernel::Impl*)p)->finit(e);
+    try
+    {
+        ((cv::ocl::Kernel::Impl*)p)->finit(e);
+    }
+    catch (const cv::Exception& exc)
+    {
+        CV_LOG_ERROR(NULL, "OCL: Unexpected OpenCV exception in OpenCL callback: " << exc.what());
+    }
+    catch (const std::exception& exc)
+    {
+        CV_LOG_ERROR(NULL, "OCL: Unexpected C++ exception in OpenCL callback: " << exc.what());
+    }
+    catch (...)
+    {
+        CV_LOG_ERROR(NULL, "OCL: Unexpected unknown C++ exception in OpenCL callback");
+    }
 }
 
 }