intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 36 insertions, 0 deletions

diff --git a/library/cpp/terminate_handler/terminate_handler.cpp b/library/cpp/terminate_handler/terminate_handler.cpp
new file mode 100644
index 0000000000..d7e8fbed95
--- /dev/null
+++ b/library/cpp/terminate_handler/terminate_handler.cpp
@@ -0,0 +1,36 @@
+#include <cstdlib>
+#include <exception>
+
+#include <util/stream/output.h>
+#include <util/system/backtrace.h>
+#include <util/generic/yexception.h>
+
+namespace {
+    // Avoid infinite recursion if std::terminate is triggered anew by the
+    // FancyTerminateHandler.
+    thread_local int TerminateCount = 0;
+
+    void FancyTerminateHandler() {
+        switch (++TerminateCount) {
+            case 1:
+                break;
+            case 2:
+                Cerr << "FancyTerminateHandler called recursively" << Endl;
+                [[fallthrough]];
+            default:
+                abort();
+                break;
+        }
+
+        if (std::current_exception()) {
+            Cerr << "Uncaught exception: " << CurrentExceptionMessage() << '\n';
+        } else {
+            Cerr << "Terminate for unknown reason (no current exception)\n";
+        }
+        PrintBackTrace();
+        Cerr.Flush();
+        abort();
+    }
+
+    [[maybe_unused]] auto _ = std::set_terminate(&FancyTerminateHandler);
+}