Merge github.com:grpc/grpc into split-me-baby-one-more-time

27 files changed, 1755 insertions, 19 deletions

diff --git a/Makefile b/Makefile
index 2286abe625..b58f654929 100644
--- a/Makefile
+++ b/Makefile
@@ -944,6 +944,9 @@ httpcli_format_request_test: $(BINDIR)/$(CONFIG)/httpcli_format_request_test
 httpcli_test: $(BINDIR)/$(CONFIG)/httpcli_test
 httpscli_test: $(BINDIR)/$(CONFIG)/httpscli_test
 init_test: $(BINDIR)/$(CONFIG)/init_test
+internal_api_canary_iomgr_test: $(BINDIR)/$(CONFIG)/internal_api_canary_iomgr_test
+internal_api_canary_support_test: $(BINDIR)/$(CONFIG)/internal_api_canary_support_test
+internal_api_canary_transport_test: $(BINDIR)/$(CONFIG)/internal_api_canary_transport_test
 invalid_call_argument_test: $(BINDIR)/$(CONFIG)/invalid_call_argument_test
 json_fuzzer_test: $(BINDIR)/$(CONFIG)/json_fuzzer_test
 json_rewrite: $(BINDIR)/$(CONFIG)/json_rewrite
@@ -1255,6 +1258,9 @@ buildtests_c: privatelibs_c \
   $(BINDIR)/$(CONFIG)/httpcli_test \
   $(BINDIR)/$(CONFIG)/httpscli_test \
   $(BINDIR)/$(CONFIG)/init_test \
+  $(BINDIR)/$(CONFIG)/internal_api_canary_iomgr_test \
+  $(BINDIR)/$(CONFIG)/internal_api_canary_support_test \
+  $(BINDIR)/$(CONFIG)/internal_api_canary_transport_test \
   $(BINDIR)/$(CONFIG)/invalid_call_argument_test \
   $(BINDIR)/$(CONFIG)/json_rewrite \
   $(BINDIR)/$(CONFIG)/json_rewrite_test \
@@ -8088,6 +8094,102 @@ endif
 endif
 
 
+INTERNAL_API_CANARY_IOMGR_TEST_SRC = \
+    test/core/internal_api_canaries/iomgr.c \
+
+INTERNAL_API_CANARY_IOMGR_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(INTERNAL_API_CANARY_IOMGR_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/internal_api_canary_iomgr_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/internal_api_canary_iomgr_test: $(INTERNAL_API_CANARY_IOMGR_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(INTERNAL_API_CANARY_IOMGR_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/internal_api_canary_iomgr_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/internal_api_canaries/iomgr.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_internal_api_canary_iomgr_test: $(INTERNAL_API_CANARY_IOMGR_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(INTERNAL_API_CANARY_IOMGR_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
+INTERNAL_API_CANARY_SUPPORT_TEST_SRC = \
+    test/core/internal_api_canaries/iomgr.c \
+
+INTERNAL_API_CANARY_SUPPORT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(INTERNAL_API_CANARY_SUPPORT_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/internal_api_canary_support_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/internal_api_canary_support_test: $(INTERNAL_API_CANARY_SUPPORT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(INTERNAL_API_CANARY_SUPPORT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/internal_api_canary_support_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/internal_api_canaries/iomgr.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_internal_api_canary_support_test: $(INTERNAL_API_CANARY_SUPPORT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(INTERNAL_API_CANARY_SUPPORT_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
+INTERNAL_API_CANARY_TRANSPORT_TEST_SRC = \
+    test/core/internal_api_canaries/iomgr.c \
+
+INTERNAL_API_CANARY_TRANSPORT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(INTERNAL_API_CANARY_TRANSPORT_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/internal_api_canary_transport_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/internal_api_canary_transport_test: $(INTERNAL_API_CANARY_TRANSPORT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(INTERNAL_API_CANARY_TRANSPORT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/internal_api_canary_transport_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/internal_api_canaries/iomgr.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_internal_api_canary_transport_test: $(INTERNAL_API_CANARY_TRANSPORT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(INTERNAL_API_CANARY_TRANSPORT_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 INVALID_CALL_ARGUMENT_TEST_SRC = \
     test/core/end2end/invalid_call_argument_test.c \
 
diff --git a/PYTHON-MANIFEST.in b/PYTHON-MANIFEST.in
index 25aba87c18..534f4c1251 100644
--- a/PYTHON-MANIFEST.in
+++ b/PYTHON-MANIFEST.in
@@ -2,8 +2,10 @@ recursive-include src/python/grpcio/grpc *.c *.h *.py *.pyx *.pxd *.pxi *.python
 recursive-exclude src/python/grpcio/grpc/_cython *.so *.pyd
 graft src/python/grpcio/tests
 graft src/core
+graft src/boringssl
 graft include/grpc
 graft third_party/boringssl
+graft third_party/nanopb
 graft third_party/zlib
 include src/python/grpcio/commands.py
 include src/python/grpcio/grpc_version.py
diff --git a/build.yaml b/build.yaml
index 43d3c680b8..21218d7b31 100644
--- a/build.yaml
+++ b/build.yaml
@@ -1676,6 +1676,39 @@ targets:
   - grpc
   - gpr_test_util
   - gpr
+- name: internal_api_canary_iomgr_test
+  build: test
+  run: false
+  language: c
+  src:
+  - test/core/internal_api_canaries/iomgr.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
+- name: internal_api_canary_support_test
+  build: test
+  run: false
+  language: c
+  src:
+  - test/core/internal_api_canaries/iomgr.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
+- name: internal_api_canary_transport_test
+  build: test
+  run: false
+  language: c
+  src:
+  - test/core/internal_api_canaries/iomgr.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
 - name: invalid_call_argument_test
   build: test
   language: c
diff --git a/src/python/grpcio/precompiled.py b/src/python/grpcio/precompiled.py
index d34250b02c..aeeb2754ea 100644
--- a/src/python/grpcio/precompiled.py
+++ b/src/python/grpcio/precompiled.py
@@ -91,6 +91,9 @@ class BuildTaggedExt(setuptools.Command):
 
 
 def update_setup_arguments(setup_arguments):
+  if not USE_PRECOMPILED_BINARIES:
+    sys.stderr.write('not using precompiled extension')
+    return
   url = '{}/{}.so'.format(BINARIES_REPOSITORY, _tagged_ext_name('cygrpc'))
   target_path = os.path.join(PYTHON_STEM, 'grpc/_cython/cygrpc.so')
   try:
diff --git a/test/core/internal_api_canaries/iomgr.c b/test/core/internal_api_canaries/iomgr.c
new file mode 100644
index 0000000000..04d66994cd
--- /dev/null
+++ b/test/core/internal_api_canaries/iomgr.c
@@ -0,0 +1,115 @@
+/*
+ *
+ * Copyright 2015-2016, 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.
+ *
+ */
+
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/closure.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/executor.h"
+
+/*******************************************************************************
+ * NOTE: If this test fails to compile, then the api changes are likely to cause
+ *       merge failures downstream. Please pay special attention to reviewing
+ *       these changes, and solicit help as appropriate when merging downstream.
+ *
+ * This test is NOT expected to be run directly.
+ ******************************************************************************/
+
+static void test_code(void) {
+  /* iomgr.h */
+  grpc_iomgr_init();
+  grpc_iomgr_shutdown();
+
+  /* closure.h */
+  grpc_closure closure;
+  closure.cb = NULL;
+  closure.cb_arg = NULL;
+  closure.final_data = 0;
+
+  grpc_closure_list closure_list = GRPC_CLOSURE_LIST_INIT;
+  closure_list.head = NULL;
+  closure_list.tail = NULL;
+
+  grpc_closure_init(&closure, NULL, NULL);
+
+  grpc_closure_create(NULL, NULL);
+
+  grpc_closure_list_move(NULL, NULL);
+  grpc_closure_list_add(NULL, NULL, true);
+  bool x = grpc_closure_list_empty(closure_list);
+  grpc_closure_next(&closure);
+
+  /* exec_ctx.h */
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_exec_ctx_flush(&exec_ctx);
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_exec_ctx_enqueue(&exec_ctx, &closure, x, NULL);
+  grpc_exec_ctx_enqueue_list(&exec_ctx, &closure_list, NULL);
+
+  /* endpoint.h */
+  grpc_endpoint endpoint;
+  grpc_endpoint_vtable vtable = {
+      grpc_endpoint_read,           grpc_endpoint_write,
+      grpc_endpoint_add_to_pollset, grpc_endpoint_add_to_pollset_set,
+      grpc_endpoint_shutdown,       grpc_endpoint_destroy,
+      grpc_endpoint_get_peer};
+  endpoint.vtable = &vtable;
+
+  grpc_endpoint_read(&exec_ctx, &endpoint, NULL, NULL);
+  grpc_endpoint_get_peer(&endpoint);
+  grpc_endpoint_write(&exec_ctx, &endpoint, NULL, NULL);
+  grpc_endpoint_shutdown(&exec_ctx, &endpoint);
+  grpc_endpoint_destroy(&exec_ctx, &endpoint);
+  grpc_endpoint_add_to_pollset(&exec_ctx, &endpoint, NULL);
+  grpc_endpoint_add_to_pollset_set(&exec_ctx, &endpoint, NULL);
+
+  /* executor.h */
+  grpc_executor_init();
+  grpc_executor_enqueue(&closure, x);
+  grpc_executor_shutdown();
+
+  /* pollset.h */
+  grpc_pollset_size();
+  grpc_pollset_init(NULL, NULL);
+  grpc_pollset_shutdown(NULL, NULL, NULL);
+  grpc_pollset_reset(NULL);
+  grpc_pollset_destroy(NULL);
+  grpc_pollset_work(NULL, NULL, NULL, gpr_now(GPR_CLOCK_REALTIME),
+                    gpr_now(GPR_CLOCK_MONOTONIC));
+  grpc_pollset_kick(NULL, NULL);
+}
+
+int main(void) {
+  if (false) test_code();
+  return 0;
+}
diff --git a/test/core/internal_api_canaries/support.c b/test/core/internal_api_canaries/support.c
new file mode 100644
index 0000000000..7e00e0d2ff
--- /dev/null
+++ b/test/core/internal_api_canaries/support.c
@@ -0,0 +1,58 @@
+/*
+ *
+ * Copyright 2015-2016, 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.
+ *
+ */
+
+/*******************************************************************************
+ * NOTE: If this test fails to compile, then the api changes are likely to cause
+ *       merge failures downstream. Please pay special attention to reviewing
+ *       these changes, and solicit help as appropriate when merging downstream.
+ *
+ * This test is NOT expected to be run directly.
+ ******************************************************************************/
+
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/load_file.h"
+#include "src/core/lib/support/tmpfile.h"
+
+static void test_code(void) {
+  /* env.h */
+  gpr_set_env("abc", gpr_getenv("xyz"));
+  /* load_file.h */
+  gpr_load_file("abc", 1, NULL);
+  /* tmpfile.h */
+  fclose(gpr_tmpfile("foo", NULL));
+}
+
+int main(void) {
+  if (false) test_code();
+  return 0;
+}
diff --git a/test/core/internal_api_canaries/transport.c b/test/core/internal_api_canaries/transport.c
new file mode 100644
index 0000000000..01daabaa56
--- /dev/null
+++ b/test/core/internal_api_canaries/transport.c
@@ -0,0 +1,81 @@
+/*
+ *
+ * Copyright 2015-2016, 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.
+ *
+ */
+
+/*******************************************************************************
+ * NOTE: If this test fails to compile, then the api changes are likely to cause
+ *       merge failures downstream. Please pay special attention to reviewing
+ *       these changes, and solicit help as appropriate when merging downstream.
+ *
+ * This test is NOT expected to be run directly.
+ ******************************************************************************/
+
+#include "src/core/lib/transport/transport.h"
+#include "src/core/lib/transport/transport_impl.h"
+
+static void test_code(void) {
+  /* transport_impl.h */
+  grpc_transport transport;
+  grpc_transport_vtable vtable = {12345,
+                                  grpc_transport_init_stream,
+                                  grpc_transport_set_pollset,
+                                  grpc_transport_perform_stream_op,
+                                  grpc_transport_perform_op,
+                                  grpc_transport_destroy_stream,
+                                  grpc_transport_destroy,
+                                  grpc_transport_get_peer};
+  transport.vtable = &vtable;
+
+  /* transport.h */
+  GRPC_STREAM_REF_INIT(NULL, 0, NULL, NULL, "xyz");
+  GPR_ASSERT(0 == grpc_transport_stream_size(NULL));
+  GPR_ASSERT(grpc_transport_init_stream(&transport, NULL, NULL, NULL, NULL));
+  grpc_transport_set_pollset(&transport, NULL, NULL, NULL);
+  grpc_transport_destroy_stream(&transport, NULL, NULL);
+  grpc_transport_stream_op_finish_with_failure(NULL, NULL);
+  grpc_transport_stream_op_add_cancellation(NULL, GRPC_STATUS_UNAVAILABLE);
+  grpc_transport_stream_op_add_close(NULL, GRPC_STATUS_UNAVAILABLE,
+                                     grpc_transport_op_string(NULL));
+  grpc_transport_perform_stream_op(&transport, NULL, NULL, NULL);
+  grpc_transport_perform_op(&transport, NULL, NULL);
+  grpc_transport_ping(&transport, NULL);
+  grpc_transport_goaway(&transport, GRPC_STATUS_UNAVAILABLE,
+                        gpr_slice_malloc(0));
+  grpc_transport_close(&transport);
+  grpc_transport_destroy(&transport, NULL);
+  GPR_ASSERT("xyz" == grpc_transport_get_peer(&transport, NULL));
+}
+
+int main(void) {
+  if (false) test_code();
+  return 0;
+}
diff --git a/tools/gce/create_interop_worker.sh b/tools/gce/create_interop_worker.sh
new file mode 100755
index 0000000000..3c49c6102a
--- /dev/null
+++ b/tools/gce/create_interop_worker.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+# Copyright 2015-2016, 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.
+
+# Creates an interop worker on GCE.
+# IMPORTANT: After this script finishes, there are still some manual
+# steps needed there are hard to automatize.
+# See go/grpc-jenkins-setup for followup instructions.
+
+set -ex
+
+cd $(dirname $0)
+
+CLOUD_PROJECT=grpc-testing
+ZONE=us-east1-a  # canary gateway is reachable from this zone
+
+INSTANCE_NAME="${1:-grpc-canary-interop2}"
+
+gcloud compute instances create $INSTANCE_NAME \
+    --project="$CLOUD_PROJECT" \
+    --zone "$ZONE" \
+    --machine-type n1-standard-16 \
+    --image ubuntu-15-10 \
+    --boot-disk-size 1000 \
+    --scopes https://www.googleapis.com/auth/xapi.zoo
+
+echo 'Created GCE instance, waiting 60 seconds for it to come online.'
+sleep 60
+
+gcloud compute copy-files \
+    --project="$CLOUD_PROJECT" \
+    --zone "$ZONE" \
+    jenkins_master.pub linux_worker_init.sh ${INSTANCE_NAME}:~
+
+gcloud compute ssh \
+    --project="$CLOUD_PROJECT" \
+    --zone "$ZONE" \
+    $INSTANCE_NAME --command "./linux_worker_init.sh"
diff --git a/tools/run_tests/build_python.sh b/tools/run_tests/build_python.sh
index 79a148faf1..fe84300c7b 100755
--- a/tools/run_tests/build_python.sh
+++ b/tools/run_tests/build_python.sh
@@ -40,6 +40,7 @@ export PATH=$ROOT/bins/$CONFIG:$ROOT/bins/$CONFIG/protobuf:$PATH
 export CFLAGS="-I$ROOT/include -std=gnu99"
 export LDFLAGS="-L$ROOT/libs/$CONFIG"
 export GRPC_PYTHON_BUILD_WITH_CYTHON=1
+export GRPC_PYTHON_USE_PRECOMPILED_BINARIES=0
 
 if [ "$CONFIG" = "gcov" ]
 then
diff --git a/tools/run_tests/jobset.py b/tools/run_tests/jobset.py
index a3b246dc08..d1cfc5952f 100755
--- a/tools/run_tests/jobset.py
+++ b/tools/run_tests/jobset.py
@@ -151,7 +151,8 @@ class JobSpec(object):
 
   def __init__(self, cmdline, shortname=None, environ=None, hash_targets=None,
                cwd=None, shell=False, timeout_seconds=5*60, flake_retries=0,
-               timeout_retries=0, kill_handler=None, cpu_cost=1.0):
+               timeout_retries=0, kill_handler=None, cpu_cost=1.0,
+               verbose_success=False):
     """
     Arguments:
       cmdline: a list of arguments to pass as the command line
@@ -176,6 +177,7 @@ class JobSpec(object):
     self.timeout_retries = timeout_retries
     self.kill_handler = kill_handler
     self.cpu_cost = cpu_cost
+    self.verbose_success = verbose_success
 
   def identity(self):
     return '%r %r %r' % (self.cmdline, self.environ, self.hash_targets)
@@ -287,7 +289,8 @@ class Job(object):
             cores = (user + sys) / real
             measurement = '; cpu_cost=%.01f; estimated=%.01f' % (cores, self._spec.cpu_cost)
         message('PASSED', '%s [time=%.1fsec; retries=%d:%d%s]' % (
-                    self._spec.shortname, elapsed, self._retries, self._timeout_retries, measurement),
+            self._spec.shortname, elapsed, self._retries, self._timeout_retries, measurement),
+            stdout() if self._spec.verbose_success else None,
             do_newline=self._newline_on_success or self._travis)
         self.result.state = 'PASSED'
         if self._bin_hash:
diff --git a/tools/run_tests/performance/build_performance.sh b/tools/run_tests/performance/build_performance.sh
new file mode 100755
index 0000000000..00cc41ec73
--- /dev/null
+++ b/tools/run_tests/performance/build_performance.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+# Copyright 2015-2016, 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.
+
+set -ex
+
+cd $(dirname $0)/../../..
+
+#TODO(jtattermusch): add support for more languages
+
+CONFIG=${CONFIG:-opt}
+
+# build C++ qps worker & driver
+make CONFIG=${CONFIG} qps_worker qps_driver -j8
diff --git a/tools/run_tests/performance/remote_host_build.sh b/tools/run_tests/performance/remote_host_build.sh
new file mode 100755
index 0000000000..f23ea921ce
--- /dev/null
+++ b/tools/run_tests/performance/remote_host_build.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+# Copyright 2015-2016, 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.
+
+set -ex
+
+cd $(dirname $0)/../../..
+
+# execute the build script remotely
+ssh "${USER_AT_HOST}" "CONFIG=${CONFIG} ~/performance_workspace/grpc/tools/run_tests/performance/build_performance.sh"
diff --git a/tools/run_tests/performance/remote_host_prepare.sh b/tools/run_tests/performance/remote_host_prepare.sh
new file mode 100755
index 0000000000..bad2424a6b
--- /dev/null
+++ b/tools/run_tests/performance/remote_host_prepare.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+# Copyright 2015-2016, 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.
+
+set -ex
+
+cd $(dirname $0)/../../..
+
+# cleanup after previous builds
+ssh "${USER_AT_HOST}" "rm -rf ~/performance_workspace && mkdir -p ~/performance_workspace"
+
+# TODO(jtattermusch): To be sure there are not running processes that would
+# mess with the results, be rough and reboot the slave here
+# and wait for it to come back online.
+
+# push the current sources to the slave and unpack it.
+scp ../grpc.tar "${USER_AT_HOST}:~/performance_workspace"
+ssh "${USER_AT_HOST}" "tar -xf ~/performance_workspace/grpc.tar -C ~/performance_workspace"
\ No newline at end of file
diff --git a/tools/run_tests/run_performance_tests.py b/tools/run_tests/run_performance_tests.py
new file mode 100755
index 0000000000..77c0addb42
--- /dev/null
+++ b/tools/run_tests/run_performance_tests.py
@@ -0,0 +1,353 @@
+#!/usr/bin/env python2.7
+# 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.
+
+"""Run performance tests locally or remotely."""
+
+import argparse
+import jobset
+import multiprocessing
+import os
+import subprocess
+import sys
+import tempfile
+import time
+import uuid
+
+
+_ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../..'))
+os.chdir(_ROOT)
+
+
+_REMOTE_HOST_USERNAME = 'jenkins'
+
+
+class CXXLanguage:
+
+  def __init__(self):
+    self.safename = 'cxx'
+
+  def scenarios(self):
+    # TODO(jtattermusch): add more scenarios
+    return {
+            # Scenario 1: generic async streaming ping-pong (contentionless latency)
+            'cpp_async_generic_streaming_ping_pong': [
+                '--rpc_type=STREAMING',
+                '--client_type=ASYNC_CLIENT',
+                '--server_type=ASYNC_GENERIC_SERVER',
+                '--outstanding_rpcs_per_channel=1',
+                '--client_channels=1',
+                '--bbuf_req_size=0',
+                '--bbuf_resp_size=0',
+                '--async_client_threads=1',
+                '--async_server_threads=1',
+                '--secure_test=true',
+                '--num_servers=1',
+                '--num_clients=1',
+                '--server_core_limit=0',
+                '--client_core_limit=0'],
+            # Scenario 5: Sync unary ping-pong with protobufs
+            'cpp_sync_unary_ping_pong_protobuf': [
+                '--rpc_type=UNARY',
+                '--client_type=SYNC_CLIENT',
+                '--server_type=SYNC_SERVER',
+                '--outstanding_rpcs_per_channel=1',
+                '--client_channels=1',
+                '--simple_req_size=0',
+                '--simple_resp_size=0',
+                '--secure_test=true',
+                '--num_servers=1',
+                '--num_clients=1',
+                '--server_core_limit=0',
+                '--client_core_limit=0']}
+
+  def __str__(self):
+    return 'c++'
+
+
+class CSharpLanguage:
+
+  def __init__(self):
+    self.safename = str(self)
+
+  def __str__(self):
+    return 'csharp'
+
+
+class NodeLanguage:
+
+  def __init__(self):
+    pass
+    self.safename = str(self)
+
+  def __str__(self):
+    return 'node'
+
+
+_LANGUAGES = {
+    'c++' : CXXLanguage(),
+    'csharp' : CSharpLanguage(),
+    'node' : NodeLanguage(),
+}
+
+
+class QpsWorkerJob:
+  """Encapsulates a qps worker server job."""
+
+  def __init__(self, spec, host_and_port):
+    self._spec = spec
+    self.host_and_port = host_and_port
+    self._job = jobset.Job(spec, bin_hash=None, newline_on_success=True, travis=True, add_env={})
+
+  def is_running(self):
+    """Polls a job and returns True if given job is still running."""
+    return self._job.state(jobset.NoCache()) == jobset._RUNNING
+
+  def kill(self):
+    return self._job.kill()
+
+
+def create_qpsworker_job(language, port=10000, remote_host=None):
+  # TODO: support more languages
+  cmd = 'bins/opt/qps_worker --driver_port=%s' % port
+  if remote_host:
+    user_at_host = '%s@%s' % (_REMOTE_HOST_USERNAME, remote_host)
+    cmd = 'ssh %s "cd ~/performance_workspace/grpc/ && %s"' % (user_at_host, cmd)
+    host_and_port='%s:%s' % (remote_host, port)
+  else:
+    host_and_port='localhost:%s' % port
+
+  jobspec = jobset.JobSpec(
+      cmdline=[cmd],
+      shortname='qps_worker',
+      timeout_seconds=15*60,
+      shell=True)
+  return QpsWorkerJob(jobspec, host_and_port)
+
+
+def create_scenario_jobspec(scenario_name, driver_args, workers, remote_host=None):
+  """Runs one scenario using QPS driver."""
+  # setting QPS_WORKERS env variable here makes sure it works with SSH too.
+  cmd = 'QPS_WORKERS="%s" bins/opt/qps_driver ' % ','.join(workers)
+  cmd += ' '.join(driver_args)
+  if remote_host:
+    user_at_host = '%s@%s' % (_REMOTE_HOST_USERNAME, remote_host)
+    cmd = 'ssh %s "cd ~/performance_workspace/grpc/ && %s"' % (user_at_host, cmd)
+
+  return jobset.JobSpec(
+      cmdline=[cmd],
+      shortname='qps_driver.%s' % scenario_name,
+      timeout_seconds=3*60,
+      shell=True,
+      verbose_success=True)
+
+
+def archive_repo():
+  """Archives local version of repo including submodules."""
+  # TODO: also archive grpc-go and grpc-java repos
+  archive_job = jobset.JobSpec(
+      cmdline=['tar', '-cf', '../grpc.tar', '../grpc/'],
+      shortname='archive_repo',
+      timeout_seconds=3*60)
+
+  jobset.message('START', 'Archiving local repository.', do_newline=True)
+  num_failures, _ = jobset.run(
+      [archive_job], newline_on_success=True, maxjobs=1)
+  if num_failures == 0:
+    jobset.message('SUCCESS',
+                   'Archive with local repository create successfully.',
+                   do_newline=True)
+  else:
+    jobset.message('FAILED', 'Failed to archive local repository.',
+                   do_newline=True)
+    sys.exit(1)
+
+
+def prepare_remote_hosts(hosts):
+  """Prepares remote hosts."""
+  prepare_jobs = []
+  for host in hosts:
+    user_at_host = '%s@%s' % (_REMOTE_HOST_USERNAME, host)
+    prepare_jobs.append(
+        jobset.JobSpec(
+            cmdline=['tools/run_tests/performance/remote_host_prepare.sh'],
+            shortname='remote_host_prepare.%s' % host,
+            environ = {'USER_AT_HOST': user_at_host},
+            timeout_seconds=3*60))
+  jobset.message('START', 'Preparing remote hosts.', do_newline=True)
+  num_failures, _ = jobset.run(
+      prepare_jobs, newline_on_success=True, maxjobs=10)
+  if num_failures == 0:
+    jobset.message('SUCCESS',
+                   'Remote hosts ready to start build.',
+                   do_newline=True)
+  else:
+    jobset.message('FAILED', 'Failed to prepare remote hosts.',
+                   do_newline=True)
+    sys.exit(1)
+
+
+def build_on_remote_hosts(hosts, build_local=False):
+  """Builds performance worker on remote hosts."""
+  build_timeout = 15*60
+  build_jobs = []
+  for host in hosts:
+    user_at_host = '%s@%s' % (_REMOTE_HOST_USERNAME, host)
+    build_jobs.append(
+        jobset.JobSpec(
+            cmdline=['tools/run_tests/performance/remote_host_build.sh'],
+            shortname='remote_host_build.%s' % host,
+            environ = {'USER_AT_HOST': user_at_host, 'CONFIG': 'opt'},
+            timeout_seconds=build_timeout))
+  if build_local:
+    # Build locally as well
+    build_jobs.append(
+        jobset.JobSpec(
+            cmdline=['tools/run_tests/performance/build_performance.sh'],
+            shortname='local_build',
+            environ = {'CONFIG': 'opt'},
+            timeout_seconds=build_timeout))
+  jobset.message('START', 'Building on remote hosts.', do_newline=True)
+  num_failures, _ = jobset.run(
+      build_jobs, newline_on_success=True, maxjobs=10)
+  if num_failures == 0:
+    jobset.message('SUCCESS',
+                   'Build on remote hosts was successful.',
+                   do_newline=True)
+  else:
+    jobset.message('FAILED', 'Failed to build on remote hosts.',
+                   do_newline=True)
+    sys.exit(1)
+
+
+def start_qpsworkers(worker_hosts):
+  """Starts QPS workers as background jobs."""
+  if not worker_hosts:
+    # run two workers locally
+    workers=[(None, 10000), (None, 10010)]
+  elif len(worker_hosts) == 1:
+    # run two workers on the remote host
+    workers=[(worker_hosts[0], 10000), (worker_hosts[0], 10010)]
+  else:
+    # run one worker per each remote host
+    workers=[(worker_host, 10000) for worker_host in worker_hosts]
+
+  return [create_qpsworker_job(CXXLanguage(),
+                               port=worker[1],
+                               remote_host=worker[0])
+          for worker in workers]
+
+
+def create_scenarios(languages, workers, remote_host=None):
+  """Create jobspecs for scenarios to run."""
+  scenarios = []
+  for language in languages:
+    for scenario_name, driver_args in language.scenarios().iteritems():
+      scenario = create_scenario_jobspec(scenario_name,
+                                         driver_args,
+                                         workers,
+                                         remote_host=remote_host)
+      scenarios.append(scenario)
+
+  # the very last scenario requests shutting down the workers.
+  scenarios.append(create_scenario_jobspec('quit_workers',
+                                           ['--quit=true'],
+                                           workers,
+                                           remote_host=remote_host))
+  return scenarios
+
+
+def finish_qps_workers(jobs):
+  """Waits for given jobs to finish and eventually kills them."""
+  retries = 0
+  while any(job.is_running() for job in jobs):
+    for job in qpsworker_jobs:
+      if job.is_running():
+        print 'QPS worker "%s" is still running.' % job.host_and_port
+    if retries > 10:
+      print 'Killing all QPS workers.'
+      for job in jobs:
+        job.kill()
+    retries += 1
+    time.sleep(3)
+  print 'All QPS workers finished.'
+
+
+argp = argparse.ArgumentParser(description='Run performance tests.')
+argp.add_argument('--remote_driver_host',
+                  default=None,
+                  help='Run QPS driver on given host. By default, QPS driver is run locally.')
+argp.add_argument('--remote_worker_host',
+                  nargs='+',
+                  default=[],
+                  help='Worker hosts where to start QPS workers.')
+
+args = argp.parse_args()
+
+# Put together set of remote hosts where to run and build
+remote_hosts = set()
+if args.remote_worker_host:
+  for host in args.remote_worker_host:
+    remote_hosts.add(host)
+if args.remote_driver_host:
+  remote_hosts.add(args.remote_driver_host)
+
+if remote_hosts:
+  archive_repo()
+  prepare_remote_hosts(remote_hosts)
+
+build_local = False
+if not args.remote_driver_host:
+  build_local = True
+build_on_remote_hosts(remote_hosts, build_local=build_local)
+
+qpsworker_jobs = start_qpsworkers(args.remote_worker_host)
+
+worker_addresses = [job.host_and_port for job in qpsworker_jobs]
+
+try:
+  scenarios = create_scenarios(languages=[CXXLanguage()],
+                               workers=worker_addresses,
+                               remote_host=args.remote_driver_host)
+  if not scenarios:
+    raise Exception('No scenarios to run')
+
+  jobset.message('START', 'Running scenarios.', do_newline=True)
+  num_failures, _ = jobset.run(
+      scenarios, newline_on_success=True, maxjobs=1)
+  if num_failures == 0:
+    jobset.message('SUCCESS',
+                   'All scenarios finished successfully.',
+                   do_newline=True)
+  else:
+    jobset.message('FAILED', 'Some of the scenarios failed.',
+                   do_newline=True)
+    sys.exit(1)
+finally:
+  finish_qps_workers(qpsworker_jobs)
diff --git a/tools/run_tests/run_python.sh b/tools/run_tests/run_python.sh
index d4b7250cbb..e3be14e7c7 100755
--- a/tools/run_tests/run_python.sh
+++ b/tools/run_tests/run_python.sh
@@ -40,6 +40,7 @@ export PATH=$ROOT/bins/$CONFIG:$ROOT/bins/$CONFIG/protobuf:$PATH
 export CFLAGS="-I$ROOT/include -std=c89"
 export LDFLAGS="-L$ROOT/libs/$CONFIG"
 export GRPC_PYTHON_BUILD_WITH_CYTHON=1
+export GRPC_PYTHON_USE_PRECOMPILED_BINARIES=0
 
 if [ "$CONFIG" = "gcov" ]
 then
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index a9438045aa..71bb7b12db 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -120,7 +120,12 @@ def get_c_tests(travis, test_lang) :
 
 def _check_compiler(compiler, supported_compilers):
   if compiler not in supported_compilers:
-    raise Exception('Compiler %s not supported.' % compiler)
+    raise Exception('Compiler %s not supported (on this platform).' % compiler)
+
+
+def _check_arch(arch, supported_archs):
+  if arch not in supported_archs:
+    raise Exception('Architecture %s not supported.' % arch)
 
 
 def _is_use_docker_child():
@@ -464,7 +469,20 @@ class CSharpLanguage(object):
   def configure(self, config, args):
     self.config = config
     self.args = args
-    _check_compiler(self.args.compiler, ['default'])
+    if self.platform == 'windows':
+      # Explicitly choosing between x86 and x64 arch doesn't work yet
+      _check_arch(self.args.arch, ['default'])
+      self._make_options = [_windows_toolset_option(self.args.compiler),
+                            _windows_arch_option(self.args.arch)]
+    else:
+      _check_compiler(self.args.compiler, ['default'])
+      if self.platform == 'mac':
+        # On Mac, official distribution of mono is 32bit.
+        # TODO(jtattermusch): EMBED_ZLIB=true currently breaks the mac build
+        self._make_options = ['EMBED_OPENSSL=true',
+                              'CFLAGS=-m32', 'LDFLAGS=-m32']
+      else:
+        self._make_options = ['EMBED_OPENSSL=true', 'EMBED_ZLIB=true']
 
   def test_specs(self):
     with open('src/csharp/tests.json') as f:
@@ -511,23 +529,16 @@ class CSharpLanguage(object):
       return [['tools/run_tests/pre_build_csharp.sh']]
 
   def make_targets(self):
-    # For Windows, this target doesn't really build anything,
-    # everything is build by buildall script later.
-    if self.platform == 'windows':
-      return []
-    else:
-      return ['grpc_csharp_ext']
+    return ['grpc_csharp_ext']
 
   def make_options(self):
-    if self.platform == 'mac':
-      # On Mac, official distribution of mono is 32bit.
-      return ['CFLAGS=-arch i386', 'LDFLAGS=-arch i386']
-    else:
-      return []
+    return self._make_options;
 
   def build_steps(self):
     if self.platform == 'windows':
-      return [['src\\csharp\\buildall.bat']]
+      return [[_windows_build_bat(self.args.compiler),
+               'src/csharp/Grpc.sln',
+               '/p:Configuration=%s' % _MSBUILD_CONFIG[self.config.build_config]]]
     else:
       return [['tools/run_tests/build_csharp.sh']]
 
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index d7c9839d5a..bb682e1dc0 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -1035,6 +1035,54 @@
     ], 
     "headers": [], 
     "language": "c", 
+    "name": "internal_api_canary_iomgr_test", 
+    "src": [
+      "test/core/internal_api_canaries/iomgr.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "internal_api_canary_support_test", 
+    "src": [
+      "test/core/internal_api_canaries/iomgr.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "internal_api_canary_transport_test", 
+    "src": [
+      "test/core/internal_api_canaries/iomgr.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
     "name": "invalid_call_argument_test", 
     "src": [
       "test/core/end2end/invalid_call_argument_test.c"
diff --git a/vsprojects/build_vs2010.bat b/vsprojects/build_vs2010.bat
index 64b0ed5d3f..1bc3c86a92 100644
--- a/vsprojects/build_vs2010.bat
+++ b/vsprojects/build_vs2010.bat
@@ -1,5 +1,5 @@
 @rem Convenience wrapper that runs specified gRPC target using msbuild
-@rem Usage: build.bat TARGET_NAME
+@rem Usage: build_vs2010.bat TARGET_NAME
 
 setlocal
 @rem Set VS variables (uses Visual Studio 2010)
diff --git a/vsprojects/build_vs2013.bat b/vsprojects/build_vs2013.bat
index be3caa9298..82c0a3ad82 100644
--- a/vsprojects/build_vs2013.bat
+++ b/vsprojects/build_vs2013.bat
@@ -1,5 +1,5 @@
 @rem Convenience wrapper that runs specified gRPC target using msbuild
-@rem Usage: build.bat TARGET_NAME
+@rem Usage: build_vs2013.bat TARGET_NAME
 
 setlocal
 @rem Set VS variables (uses Visual Studio 2013)
diff --git a/vsprojects/build_vs2015.bat b/vsprojects/build_vs2015.bat
index 50485a30f3..c6e1b433a3 100644
--- a/vsprojects/build_vs2015.bat
+++ b/vsprojects/build_vs2015.bat
@@ -1,5 +1,5 @@
 @rem Convenience wrapper that runs specified gRPC target using msbuild
-@rem Usage: build.bat TARGET_NAME
+@rem Usage: build_vs2015.bat TARGET_NAME
 
 setlocal
 @rem Set VS variables (uses Visual Studio 2015)
diff --git a/vsprojects/buildtests_c.sln b/vsprojects/buildtests_c.sln
index 96dc4eb107..f736c86739 100644
--- a/vsprojects/buildtests_c.sln
+++ b/vsprojects/buildtests_c.sln
@@ -696,6 +696,39 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "init_test", "vcxproj\test\i
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "internal_api_canary_iomgr_test", "vcxproj\test\internal_api_canary_iomgr_test\internal_api_canary_iomgr_test.vcxproj", "{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "internal_api_canary_support_test", "vcxproj\test\internal_api_canary_support_test\internal_api_canary_support_test.vcxproj", "{D53575C6-713C-E6E3-FD74-E65F20916498}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "internal_api_canary_transport_test", "vcxproj\test\internal_api_canary_transport_test\internal_api_canary_transport_test.vcxproj", "{ED24E700-964E-B426-6A6A-1944E2EF7BCB}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "invalid_call_argument_test", "vcxproj\test\invalid_call_argument_test\invalid_call_argument_test.vcxproj", "{C32CA8A3-58E6-8EB9-B72F-C295547D36A6}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -2453,6 +2486,54 @@ Global
 		{117CA7AD-C42B-9217-6C95-42A801777BC5}.Release-DLL|Win32.Build.0 = Release|Win32
 		{117CA7AD-C42B-9217-6C95-42A801777BC5}.Release-DLL|x64.ActiveCfg = Release|x64
 		{117CA7AD-C42B-9217-6C95-42A801777BC5}.Release-DLL|x64.Build.0 = Release|x64
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Debug|Win32.ActiveCfg = Debug|Win32
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Debug|x64.ActiveCfg = Debug|x64
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Release|Win32.ActiveCfg = Release|Win32
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Release|x64.ActiveCfg = Release|x64
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Debug|Win32.Build.0 = Debug|Win32
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Debug|x64.Build.0 = Debug|x64
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Release|Win32.Build.0 = Release|Win32
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Release|x64.Build.0 = Release|x64
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Debug-DLL|x64.Build.0 = Debug|x64
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Release-DLL|Win32.Build.0 = Release|Win32
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Release-DLL|x64.ActiveCfg = Release|x64
+		{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}.Release-DLL|x64.Build.0 = Release|x64
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Debug|Win32.ActiveCfg = Debug|Win32
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Debug|x64.ActiveCfg = Debug|x64
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Release|Win32.ActiveCfg = Release|Win32
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Release|x64.ActiveCfg = Release|x64
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Debug|Win32.Build.0 = Debug|Win32
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Debug|x64.Build.0 = Debug|x64
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Release|Win32.Build.0 = Release|Win32
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Release|x64.Build.0 = Release|x64
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Debug-DLL|x64.Build.0 = Debug|x64
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Release-DLL|Win32.Build.0 = Release|Win32
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Release-DLL|x64.ActiveCfg = Release|x64
+		{D53575C6-713C-E6E3-FD74-E65F20916498}.Release-DLL|x64.Build.0 = Release|x64
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Debug|Win32.ActiveCfg = Debug|Win32
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Debug|x64.ActiveCfg = Debug|x64
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Release|Win32.ActiveCfg = Release|Win32
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Release|x64.ActiveCfg = Release|x64
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Debug|Win32.Build.0 = Debug|Win32
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Debug|x64.Build.0 = Debug|x64
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Release|Win32.Build.0 = Release|Win32
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Release|x64.Build.0 = Release|x64
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Debug-DLL|x64.Build.0 = Debug|x64
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Release-DLL|Win32.Build.0 = Release|Win32
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Release-DLL|x64.ActiveCfg = Release|x64
+		{ED24E700-964E-B426-6A6A-1944E2EF7BCB}.Release-DLL|x64.Build.0 = Release|x64
 		{C32CA8A3-58E6-8EB9-B72F-C295547D36A6}.Debug|Win32.ActiveCfg = Debug|Win32
 		{C32CA8A3-58E6-8EB9-B72F-C295547D36A6}.Debug|x64.ActiveCfg = Debug|x64
 		{C32CA8A3-58E6-8EB9-B72F-C295547D36A6}.Release|Win32.ActiveCfg = Release|Win32
diff --git a/vsprojects/vcxproj/test/internal_api_canary_iomgr_test/internal_api_canary_iomgr_test.vcxproj b/vsprojects/vcxproj/test/internal_api_canary_iomgr_test/internal_api_canary_iomgr_test.vcxproj
new file mode 100644
index 0000000000..11d89a01c1
--- /dev/null
+++ b/vsprojects/vcxproj/test/internal_api_canary_iomgr_test/internal_api_canary_iomgr_test.vcxproj
@@ -0,0 +1,199 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\1.0.204.1.props')" />
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{28AE726B-1BFB-202B-48D2-41AF9D09B9EA}</ProjectGuid>
+    <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
+    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+    <PlatformToolset>v100</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+    <PlatformToolset>v120</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\openssl.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+    <TargetName>internal_api_canary_iomgr_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'">
+    <TargetName>internal_api_canary_iomgr_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Release</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\internal_api_canaries\iomgr.c">
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
+      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
+      <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr\gpr.vcxproj">
+      <Project>{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" />
+  </Target>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/internal_api_canary_iomgr_test/internal_api_canary_iomgr_test.vcxproj.filters b/vsprojects/vcxproj/test/internal_api_canary_iomgr_test/internal_api_canary_iomgr_test.vcxproj.filters
new file mode 100644
index 0000000000..f1ee82d1f4
--- /dev/null
+++ b/vsprojects/vcxproj/test/internal_api_canary_iomgr_test/internal_api_canary_iomgr_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\internal_api_canaries\iomgr.c">
+      <Filter>test\core\internal_api_canaries</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{881986d1-d1fe-b377-cf26-b3377af95009}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{4f9a544e-5680-18ee-30d7-38179bf82cee}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\internal_api_canaries">
+      <UniqueIdentifier>{6ab29f78-ec9d-d63a-8e8f-0d7552b3edd4}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/internal_api_canary_support_test/internal_api_canary_support_test.vcxproj b/vsprojects/vcxproj/test/internal_api_canary_support_test/internal_api_canary_support_test.vcxproj
new file mode 100644
index 0000000000..59092dc2b3
--- /dev/null
+++ b/vsprojects/vcxproj/test/internal_api_canary_support_test/internal_api_canary_support_test.vcxproj
@@ -0,0 +1,199 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\1.0.204.1.props')" />
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{D53575C6-713C-E6E3-FD74-E65F20916498}</ProjectGuid>
+    <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
+    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+    <PlatformToolset>v100</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+    <PlatformToolset>v120</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\openssl.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+    <TargetName>internal_api_canary_support_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'">
+    <TargetName>internal_api_canary_support_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Release</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\internal_api_canaries\iomgr.c">
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
+      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
+      <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr\gpr.vcxproj">
+      <Project>{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" />
+  </Target>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/internal_api_canary_support_test/internal_api_canary_support_test.vcxproj.filters b/vsprojects/vcxproj/test/internal_api_canary_support_test/internal_api_canary_support_test.vcxproj.filters
new file mode 100644
index 0000000000..f7f4e3200e
--- /dev/null
+++ b/vsprojects/vcxproj/test/internal_api_canary_support_test/internal_api_canary_support_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\internal_api_canaries\iomgr.c">
+      <Filter>test\core\internal_api_canaries</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{a6c31cba-af9d-78ea-8980-8b77c9fc4485}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{d84283b8-4529-6c09-18bf-20a69f14f7ab}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\internal_api_canaries">
+      <UniqueIdentifier>{ea379f93-9285-7180-0d69-24a56da2b201}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/internal_api_canary_transport_test/internal_api_canary_transport_test.vcxproj b/vsprojects/vcxproj/test/internal_api_canary_transport_test/internal_api_canary_transport_test.vcxproj
new file mode 100644
index 0000000000..110f7e3b04
--- /dev/null
+++ b/vsprojects/vcxproj/test/internal_api_canary_transport_test/internal_api_canary_transport_test.vcxproj
@@ -0,0 +1,199 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\1.0.204.1.props')" />
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{ED24E700-964E-B426-6A6A-1944E2EF7BCB}</ProjectGuid>
+    <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
+    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+    <PlatformToolset>v100</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+    <PlatformToolset>v120</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\openssl.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+    <TargetName>internal_api_canary_transport_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'">
+    <TargetName>internal_api_canary_transport_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
+    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
+    <Configuration-grpc_dependencies_openssl>Release</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\internal_api_canaries\iomgr.c">
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
+      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
+      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
+      <Project>{EAB0A629-17A9-44DB-B5FF-E91A721FE037}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr\gpr.vcxproj">
+      <Project>{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  <Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\native\grpc.dependencies.zlib.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.zlib.1.2.8.10\build\native\grpc.dependencies.zlib.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\native\grpc.dependencies.openssl.redist.targets')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props')" />
+    <Error Condition="!Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.targets')" />
+  </Target>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/internal_api_canary_transport_test/internal_api_canary_transport_test.vcxproj.filters b/vsprojects/vcxproj/test/internal_api_canary_transport_test/internal_api_canary_transport_test.vcxproj.filters
new file mode 100644
index 0000000000..1e0b4c5557
--- /dev/null
+++ b/vsprojects/vcxproj/test/internal_api_canary_transport_test/internal_api_canary_transport_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\internal_api_canaries\iomgr.c">
+      <Filter>test\core\internal_api_canaries</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{38e59e26-aad9-60fd-a1a7-c8fd9b606e2f}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{79aad60f-59b8-09e2-2cad-5b5e083ac008}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\internal_api_canaries">
+      <UniqueIdentifier>{e4f0214e-e3ec-b5b8-c00b-2932b5ec2422}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+