Initial import of Brookhaven site

tapdown/lib/python3.11/site-packages/eventlet/zipkin/http.py

@@ -0,0 +1,29 @@
+import warnings
+
+from eventlet.green import httplib
+from eventlet.zipkin import api
+
+
+# see https://twitter.github.io/zipkin/Instrumenting.html
+HDR_TRACE_ID = 'X-B3-TraceId'
+HDR_SPAN_ID = 'X-B3-SpanId'
+HDR_PARENT_SPAN_ID = 'X-B3-ParentSpanId'
+HDR_SAMPLED = 'X-B3-Sampled'
+
+
+def patch():
+    warnings.warn("Since current Python thrift release \
+        doesn't support Python 3, eventlet.zipkin.http \
+        doesn't also support Python 3 (http.client)")
+
+
+def unpatch():
+    pass
+
+
+def hex_str(n):
+    """
+    Thrift uses a binary representation of trace and span ids
+    HTTP headers use a hexadecimal representation of the same
+    """
+    return '%0.16x' % (n,)