1 files changed, 71 insertions, 0 deletions
diff --git a/test/core/util/debugger_macros.c b/test/core/util/debugger_macros.c
new file mode 100644
index 0000000000..de6a2f38a7
--- /dev/null
+++ b/test/core/util/debugger_macros.c
@@ -0,0 +1,71 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/*
+ * A collection of 'macros' that help navigating the grpc object hierarchy
+ * Not intended to be robust for main-line code, often cuts across abstraction
+ * boundaries.
+ */
+
+#include <stdio.h>
+
+#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/transport/chttp2/transport/internal.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/surface/call.h"
+
+void grpc_summon_debugger_macros() {}
+
+grpc_stream *grpc_transport_stream_from_call(grpc_call *call) {
+  grpc_call_stack *cs = grpc_call_get_call_stack(call);
+  for (;;) {
+    grpc_call_element *el = grpc_call_stack_element(cs, cs->count - 1);
+    if (el->filter == &grpc_client_channel_filter) {
+      grpc_subchannel_call *scc = grpc_client_channel_get_subchannel_call(el);
+      if (scc == NULL) {
+        fprintf(stderr, "No subchannel-call");
+        return NULL;
+      }
+      cs = grpc_subchannel_call_get_call_stack(scc);
+    } else if (el->filter == &grpc_connected_filter) {
+      return grpc_connected_channel_get_stream(el);
+    } else {
+      fprintf(stderr, "Unrecognized filter: %s", el->filter->name);
+      return NULL;
+    }
+  }
+}
+
+grpc_chttp2_stream *grpc_chttp2_stream_from_call(grpc_call *call) {
+  return (grpc_chttp2_stream *)grpc_transport_stream_from_call(call);
+}