Allow grpc_init to be called multiple times

12 files changed, 306 insertions, 173 deletions

diff --git a/Makefile b/Makefile
index a491c384ee..4ac52200c4 100644
--- a/Makefile
+++ b/Makefile
@@ -451,6 +451,7 @@ lame_client_test: $(BINDIR)/$(CONFIG)/lame_client_test
 low_level_ping_pong_benchmark: $(BINDIR)/$(CONFIG)/low_level_ping_pong_benchmark
 message_compress_test: $(BINDIR)/$(CONFIG)/message_compress_test
 metadata_buffer_test: $(BINDIR)/$(CONFIG)/metadata_buffer_test
+multi_init_test: $(BINDIR)/$(CONFIG)/multi_init_test
 murmur_hash_test: $(BINDIR)/$(CONFIG)/murmur_hash_test
 no_server_test: $(BINDIR)/$(CONFIG)/no_server_test
 poll_kick_posix_test: $(BINDIR)/$(CONFIG)/poll_kick_posix_test
@@ -470,15 +471,15 @@ credentials_test: $(BINDIR)/$(CONFIG)/credentials_test
 end2end_test: $(BINDIR)/$(CONFIG)/end2end_test
 interop_client: $(BINDIR)/$(CONFIG)/interop_client
 interop_server: $(BINDIR)/$(CONFIG)/interop_server
+pubsub_client: $(BINDIR)/$(CONFIG)/pubsub_client
+pubsub_publisher_test: $(BINDIR)/$(CONFIG)/pubsub_publisher_test
+pubsub_subscriber_test: $(BINDIR)/$(CONFIG)/pubsub_subscriber_test
 qps_client: $(BINDIR)/$(CONFIG)/qps_client
 qps_server: $(BINDIR)/$(CONFIG)/qps_server
 ruby_plugin: $(BINDIR)/$(CONFIG)/ruby_plugin
 status_test: $(BINDIR)/$(CONFIG)/status_test
 sync_client_async_server_test: $(BINDIR)/$(CONFIG)/sync_client_async_server_test
 thread_pool_test: $(BINDIR)/$(CONFIG)/thread_pool_test
-pubsub_client: $(BINDIR)/$(CONFIG)/pubsub_client
-pubsub_publisher_test: $(BINDIR)/$(CONFIG)/pubsub_publisher_test
-pubsub_subscriber_test: $(BINDIR)/$(CONFIG)/pubsub_subscriber_test
 chttp2_fake_security_cancel_after_accept_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_test
 chttp2_fake_security_cancel_after_accept_and_writes_closed_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_and_writes_closed_test
 chttp2_fake_security_cancel_after_invoke_test: $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_invoke_test
@@ -878,9 +879,9 @@ privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/
 
 buildtests: buildtests_c buildtests_cxx
 
-buildtests_c: privatelibs_c $(BINDIR)/$(CONFIG)/alarm_heap_test $(BINDIR)/$(CONFIG)/alarm_list_test $(BINDIR)/$(CONFIG)/alarm_test $(BINDIR)/$(CONFIG)/alpn_test $(BINDIR)/$(CONFIG)/bin_encoder_test $(BINDIR)/$(CONFIG)/census_hash_table_test $(BINDIR)/$(CONFIG)/census_statistics_multiple_writers_circular_buffer_test $(BINDIR)/$(CONFIG)/census_statistics_multiple_writers_test $(BINDIR)/$(CONFIG)/census_statistics_performance_test $(BINDIR)/$(CONFIG)/census_statistics_quick_test $(BINDIR)/$(CONFIG)/census_statistics_small_log_test $(BINDIR)/$(CONFIG)/census_stub_test $(BINDIR)/$(CONFIG)/census_window_stats_test $(BINDIR)/$(CONFIG)/chttp2_status_conversion_test $(BINDIR)/$(CONFIG)/chttp2_stream_encoder_test $(BINDIR)/$(CONFIG)/chttp2_stream_map_test $(BINDIR)/$(CONFIG)/chttp2_transport_end2end_test $(BINDIR)/$(CONFIG)/dualstack_socket_test $(BINDIR)/$(CONFIG)/echo_client $(BINDIR)/$(CONFIG)/echo_server $(BINDIR)/$(CONFIG)/echo_test $(BINDIR)/$(CONFIG)/fd_posix_test $(BINDIR)/$(CONFIG)/fling_client $(BINDIR)/$(CONFIG)/fling_server $(BINDIR)/$(CONFIG)/fling_stream_test $(BINDIR)/$(CONFIG)/fling_test $(BINDIR)/$(CONFIG)/gpr_cancellable_test $(BINDIR)/$(CONFIG)/gpr_cmdline_test $(BINDIR)/$(CONFIG)/gpr_env_test $(BINDIR)/$(CONFIG)/gpr_file_test $(BINDIR)/$(CONFIG)/gpr_histogram_test $(BINDIR)/$(CONFIG)/gpr_host_port_test $(BINDIR)/$(CONFIG)/gpr_log_test $(BINDIR)/$(CONFIG)/gpr_slice_buffer_test $(BINDIR)/$(CONFIG)/gpr_slice_test $(BINDIR)/$(CONFIG)/gpr_string_test $(BINDIR)/$(CONFIG)/gpr_sync_test $(BINDIR)/$(CONFIG)/gpr_thd_test $(BINDIR)/$(CONFIG)/gpr_time_test $(BINDIR)/$(CONFIG)/gpr_useful_test $(BINDIR)/$(CONFIG)/grpc_base64_test $(BINDIR)/$(CONFIG)/grpc_byte_buffer_reader_test $(BINDIR)/$(CONFIG)/grpc_channel_stack_test $(BINDIR)/$(CONFIG)/grpc_completion_queue_test $(BINDIR)/$(CONFIG)/grpc_credentials_test $(BINDIR)/$(CONFIG)/grpc_json_token_test $(BINDIR)/$(CONFIG)/grpc_stream_op_test $(BINDIR)/$(CONFIG)/hpack_parser_test $(BINDIR)/$(CONFIG)/hpack_table_test $(BINDIR)/$(CONFIG)/httpcli_format_request_test $(BINDIR)/$(CONFIG)/httpcli_parser_test $(BINDIR)/$(CONFIG)/httpcli_test $(BINDIR)/$(CONFIG)/json_rewrite $(BINDIR)/$(CONFIG)/json_rewrite_test $(BINDIR)/$(CONFIG)/json_test $(BINDIR)/$(CONFIG)/lame_client_test $(BINDIR)/$(CONFIG)/message_compress_test $(BINDIR)/$(CONFIG)/metadata_buffer_test $(BINDIR)/$(CONFIG)/murmur_hash_test $(BINDIR)/$(CONFIG)/no_server_test $(BINDIR)/$(CONFIG)/poll_kick_posix_test $(BINDIR)/$(CONFIG)/resolve_address_test $(BINDIR)/$(CONFIG)/secure_endpoint_test $(BINDIR)/$(CONFIG)/sockaddr_utils_test $(BINDIR)/$(CONFIG)/tcp_client_posix_test $(BINDIR)/$(CONFIG)/tcp_posix_test $(BINDIR)/$(CONFIG)/tcp_server_posix_test $(BINDIR)/$(CONFIG)/time_averaged_stats_test $(BINDIR)/$(CONFIG)/time_test $(BINDIR)/$(CONFIG)/timeout_encoding_test $(BINDIR)/$(CONFIG)/transport_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_no_op_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fake_security_writes_done_hangs_with_pending_read_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_no_op_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_writes_done_hangs_with_pending_read_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_no_op_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_fullstack_uds_writes_done_hangs_with_pending_read_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_and_writes_closed_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_no_op_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_simple_ssl_fullstack_simple_request_legacy_test 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$(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_census_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_disappearing_server_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_inflight_calls_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_empty_batch_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_invoke_large_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_no_op_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_binary_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_metadata_and_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_large_metadata_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_payload_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_delayed_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_request_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_thread_stress_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_writes_done_hangs_with_pending_read_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_accept_and_writes_closed_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_after_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_before_invoke_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_cancel_in_a_vacuum_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_census_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_disappearing_server_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_inflight_calls_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_early_server_shutdown_finishes_tags_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_graceful_server_shutdown_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_invoke_large_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_max_concurrent_streams_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_no_op_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_ping_pong_streaming_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_binary_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_response_with_trailing_metadata_and_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_large_metadata_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_request_with_payload_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_delayed_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_simple_request_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_thread_stress_legacy_test $(BINDIR)/$(CONFIG)/chttp2_socket_pair_one_byte_at_a_time_writes_done_hangs_with_pending_read_legacy_test
 
-buildtests_cxx: privatelibs_cxx $(BINDIR)/$(CONFIG)/channel_arguments_test $(BINDIR)/$(CONFIG)/credentials_test $(BINDIR)/$(CONFIG)/end2end_test $(BINDIR)/$(CONFIG)/interop_client $(BINDIR)/$(CONFIG)/interop_server $(BINDIR)/$(CONFIG)/qps_client $(BINDIR)/$(CONFIG)/qps_server $(BINDIR)/$(CONFIG)/status_test $(BINDIR)/$(CONFIG)/sync_client_async_server_test $(BINDIR)/$(CONFIG)/thread_pool_test $(BINDIR)/$(CONFIG)/pubsub_client $(BINDIR)/$(CONFIG)/pubsub_publisher_test $(BINDIR)/$(CONFIG)/pubsub_subscriber_test
+buildtests_cxx: privatelibs_cxx $(BINDIR)/$(CONFIG)/channel_arguments_test $(BINDIR)/$(CONFIG)/credentials_test $(BINDIR)/$(CONFIG)/end2end_test $(BINDIR)/$(CONFIG)/interop_client $(BINDIR)/$(CONFIG)/interop_server $(BINDIR)/$(CONFIG)/pubsub_client $(BINDIR)/$(CONFIG)/pubsub_publisher_test $(BINDIR)/$(CONFIG)/pubsub_subscriber_test $(BINDIR)/$(CONFIG)/qps_client $(BINDIR)/$(CONFIG)/qps_server $(BINDIR)/$(CONFIG)/status_test $(BINDIR)/$(CONFIG)/sync_client_async_server_test $(BINDIR)/$(CONFIG)/thread_pool_test
 
 test: test_c test_cxx
 
@@ -989,6 +990,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/message_compress_test || ( echo test message_compress_test failed ; exit 1 )
 	$(E) "[RUN]     Testing metadata_buffer_test"
 	$(Q) $(BINDIR)/$(CONFIG)/metadata_buffer_test || ( echo test metadata_buffer_test failed ; exit 1 )
+	$(E) "[RUN]     Testing multi_init_test"
+	$(Q) $(BINDIR)/$(CONFIG)/multi_init_test || ( echo test multi_init_test failed ; exit 1 )
 	$(E) "[RUN]     Testing murmur_hash_test"
 	$(Q) $(BINDIR)/$(CONFIG)/murmur_hash_test || ( echo test murmur_hash_test failed ; exit 1 )
 	$(E) "[RUN]     Testing no_server_test"
@@ -1696,16 +1699,16 @@ test_cxx: buildtests_cxx
 	$(Q) $(BINDIR)/$(CONFIG)/credentials_test || ( echo test credentials_test failed ; exit 1 )
 	$(E) "[RUN]     Testing end2end_test"
 	$(Q) $(BINDIR)/$(CONFIG)/end2end_test || ( echo test end2end_test failed ; exit 1 )
+	$(E) "[RUN]     Testing pubsub_publisher_test"
+	$(Q) $(BINDIR)/$(CONFIG)/pubsub_publisher_test || ( echo test pubsub_publisher_test failed ; exit 1 )
+	$(E) "[RUN]     Testing pubsub_subscriber_test"
+	$(Q) $(BINDIR)/$(CONFIG)/pubsub_subscriber_test || ( echo test pubsub_subscriber_test failed ; exit 1 )
 	$(E) "[RUN]     Testing status_test"
 	$(Q) $(BINDIR)/$(CONFIG)/status_test || ( echo test status_test failed ; exit 1 )
 	$(E) "[RUN]     Testing sync_client_async_server_test"
 	$(Q) $(BINDIR)/$(CONFIG)/sync_client_async_server_test || ( echo test sync_client_async_server_test failed ; exit 1 )
 	$(E) "[RUN]     Testing thread_pool_test"
 	$(Q) $(BINDIR)/$(CONFIG)/thread_pool_test || ( echo test thread_pool_test failed ; exit 1 )
-	$(E) "[RUN]     Testing pubsub_publisher_test"
-	$(Q) $(BINDIR)/$(CONFIG)/pubsub_publisher_test || ( echo test pubsub_publisher_test failed ; exit 1 )
-	$(E) "[RUN]     Testing pubsub_subscriber_test"
-	$(Q) $(BINDIR)/$(CONFIG)/pubsub_subscriber_test || ( echo test pubsub_subscriber_test failed ; exit 1 )
 
 
 tools: privatelibs $(BINDIR)/$(CONFIG)/gen_hpack_tables $(BINDIR)/$(CONFIG)/grpc_fetch_oauth2
@@ -2198,8 +2201,8 @@ LIBGRPC_SRC = \
     src/core/iomgr/iomgr_posix.c \
     src/core/iomgr/iomgr_windows.c \
     src/core/iomgr/pollset_kick.c \
-    src/core/iomgr/pollset_multipoller_with_poll_posix.c \
     src/core/iomgr/pollset_multipoller_with_epoll.c \
+    src/core/iomgr/pollset_multipoller_with_poll_posix.c \
     src/core/iomgr/pollset_posix.c \
     src/core/iomgr/pollset_windows.c \
     src/core/iomgr/resolve_address.c \
@@ -2338,8 +2341,8 @@ src/core/iomgr/iomgr.c: $(OPENSSL_DEP)
 src/core/iomgr/iomgr_posix.c: $(OPENSSL_DEP)
 src/core/iomgr/iomgr_windows.c: $(OPENSSL_DEP)
 src/core/iomgr/pollset_kick.c: $(OPENSSL_DEP)
-src/core/iomgr/pollset_multipoller_with_poll_posix.c: $(OPENSSL_DEP)
 src/core/iomgr/pollset_multipoller_with_epoll.c: $(OPENSSL_DEP)
+src/core/iomgr/pollset_multipoller_with_poll_posix.c: $(OPENSSL_DEP)
 src/core/iomgr/pollset_posix.c: $(OPENSSL_DEP)
 src/core/iomgr/pollset_windows.c: $(OPENSSL_DEP)
 src/core/iomgr/resolve_address.c: $(OPENSSL_DEP)
@@ -2495,8 +2498,8 @@ $(OBJDIR)/$(CONFIG)/src/core/iomgr/iomgr.o:
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/iomgr_posix.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/iomgr_windows.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_kick.o: 
-$(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_multipoller_with_poll_posix.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_multipoller_with_epoll.o: 
+$(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_multipoller_with_poll_posix.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_posix.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_windows.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/resolve_address.o: 
@@ -2743,8 +2746,8 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/iomgr/iomgr_posix.c \
     src/core/iomgr/iomgr_windows.c \
     src/core/iomgr/pollset_kick.c \
-    src/core/iomgr/pollset_multipoller_with_poll_posix.c \
     src/core/iomgr/pollset_multipoller_with_epoll.c \
+    src/core/iomgr/pollset_multipoller_with_poll_posix.c \
     src/core/iomgr/pollset_posix.c \
     src/core/iomgr/pollset_windows.c \
     src/core/iomgr/resolve_address.c \
@@ -2883,8 +2886,8 @@ $(OBJDIR)/$(CONFIG)/src/core/iomgr/iomgr.o:
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/iomgr_posix.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/iomgr_windows.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_kick.o: 
-$(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_multipoller_with_poll_posix.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_multipoller_with_epoll.o: 
+$(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_multipoller_with_poll_posix.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_posix.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/pollset_windows.o: 
 $(OBJDIR)/$(CONFIG)/src/core/iomgr/resolve_address.o: 
@@ -6815,6 +6818,37 @@ endif
 endif
 
 
+MULTI_INIT_TEST_SRC = \
+    test/core/surface/multi_init_test.c \
+
+MULTI_INIT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(MULTI_INIT_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/multi_init_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/multi_init_test: $(MULTI_INIT_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) $(MULTI_INIT_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)/multi_init_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/surface/multi_init_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_multi_init_test: $(MULTI_INIT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(MULTI_INIT_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 MURMUR_HASH_TEST_SRC = \
     test/core/support/murmur_hash_test.c \
 
@@ -7417,6 +7451,99 @@ endif
 endif
 
 
+PUBSUB_CLIENT_SRC = \
+    examples/pubsub/main.cc \
+
+PUBSUB_CLIENT_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PUBSUB_CLIENT_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/pubsub_client: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/pubsub_client: $(PUBSUB_CLIENT_OBJS) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LDXX) $(LDFLAGS) $(PUBSUB_CLIENT_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/pubsub_client
+
+endif
+
+$(OBJDIR)/$(CONFIG)/examples/pubsub/main.o:  $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_pubsub_client: $(PUBSUB_CLIENT_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(PUBSUB_CLIENT_OBJS:.o=.dep)
+endif
+endif
+
+
+PUBSUB_PUBLISHER_TEST_SRC = \
+    examples/pubsub/publisher_test.cc \
+
+PUBSUB_PUBLISHER_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PUBSUB_PUBLISHER_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/pubsub_publisher_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/pubsub_publisher_test: $(PUBSUB_PUBLISHER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LDXX) $(LDFLAGS) $(PUBSUB_PUBLISHER_TEST_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/pubsub_publisher_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/examples/pubsub/publisher_test.o:  $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_pubsub_publisher_test: $(PUBSUB_PUBLISHER_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(PUBSUB_PUBLISHER_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
+PUBSUB_SUBSCRIBER_TEST_SRC = \
+    examples/pubsub/subscriber_test.cc \
+
+PUBSUB_SUBSCRIBER_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PUBSUB_SUBSCRIBER_TEST_SRC))))
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL with ALPN.
+
+$(BINDIR)/$(CONFIG)/pubsub_subscriber_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/pubsub_subscriber_test: $(PUBSUB_SUBSCRIBER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LDXX) $(LDFLAGS) $(PUBSUB_SUBSCRIBER_TEST_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/pubsub_subscriber_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/examples/pubsub/subscriber_test.o:  $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_pubsub_subscriber_test: $(PUBSUB_SUBSCRIBER_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(PUBSUB_SUBSCRIBER_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 QPS_CLIENT_SRC = \
     $(GENDIR)/test/cpp/qps/qpstest.pb.cc \
     test/cpp/qps/client.cc \
@@ -7608,99 +7735,6 @@ endif
 endif
 
 
-PUBSUB_CLIENT_SRC = \
-    examples/pubsub/main.cc \
-
-PUBSUB_CLIENT_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PUBSUB_CLIENT_SRC))))
-
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL with ALPN.
-
-$(BINDIR)/$(CONFIG)/pubsub_client: openssl_dep_error
-
-else
-
-$(BINDIR)/$(CONFIG)/pubsub_client: $(PUBSUB_CLIENT_OBJS) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LDXX) $(LDFLAGS) $(PUBSUB_CLIENT_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/pubsub_client
-
-endif
-
-$(OBJDIR)/$(CONFIG)/examples/pubsub/main.o:  $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_pubsub_client: $(PUBSUB_CLIENT_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(PUBSUB_CLIENT_OBJS:.o=.dep)
-endif
-endif
-
-
-PUBSUB_PUBLISHER_TEST_SRC = \
-    examples/pubsub/publisher_test.cc \
-
-PUBSUB_PUBLISHER_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PUBSUB_PUBLISHER_TEST_SRC))))
-
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL with ALPN.
-
-$(BINDIR)/$(CONFIG)/pubsub_publisher_test: openssl_dep_error
-
-else
-
-$(BINDIR)/$(CONFIG)/pubsub_publisher_test: $(PUBSUB_PUBLISHER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LDXX) $(LDFLAGS) $(PUBSUB_PUBLISHER_TEST_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/pubsub_publisher_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/examples/pubsub/publisher_test.o:  $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_pubsub_publisher_test: $(PUBSUB_PUBLISHER_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(PUBSUB_PUBLISHER_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
-PUBSUB_SUBSCRIBER_TEST_SRC = \
-    examples/pubsub/subscriber_test.cc \
-
-PUBSUB_SUBSCRIBER_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(PUBSUB_SUBSCRIBER_TEST_SRC))))
-
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL with ALPN.
-
-$(BINDIR)/$(CONFIG)/pubsub_subscriber_test: openssl_dep_error
-
-else
-
-$(BINDIR)/$(CONFIG)/pubsub_subscriber_test: $(PUBSUB_SUBSCRIBER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LDXX) $(LDFLAGS) $(PUBSUB_SUBSCRIBER_TEST_OBJS) $(GTEST_LIB) $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/pubsub_subscriber_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/examples/pubsub/subscriber_test.o:  $(LIBDIR)/$(CONFIG)/libpubsub_client_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_pubsub_subscriber_test: $(PUBSUB_SUBSCRIBER_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(PUBSUB_SUBSCRIBER_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
 CHTTP2_FAKE_SECURITY_CANCEL_AFTER_ACCEPT_TEST_SRC = \
 
 CHTTP2_FAKE_SECURITY_CANCEL_AFTER_ACCEPT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CHTTP2_FAKE_SECURITY_CANCEL_AFTER_ACCEPT_TEST_SRC))))
diff --git a/build.json b/build.json
index 2a072094b8..610fa03a08 100644
--- a/build.json
+++ b/build.json
@@ -138,8 +138,8 @@
         "src/core/iomgr/iomgr_posix.c",
         "src/core/iomgr/iomgr_windows.c",
         "src/core/iomgr/pollset_kick.c",
-        "src/core/iomgr/pollset_multipoller_with_poll_posix.c",
         "src/core/iomgr/pollset_multipoller_with_epoll.c",
+        "src/core/iomgr/pollset_multipoller_with_poll_posix.c",
         "src/core/iomgr/pollset_posix.c",
         "src/core/iomgr/pollset_windows.c",
         "src/core/iomgr/resolve_address.c",
@@ -1357,6 +1357,20 @@
       ]
     },
     {
+      "name": "multi_init_test",
+      "build": "test",
+      "language": "c",
+      "src": [
+        "test/core/surface/multi_init_test.c"
+      ],
+      "deps": [
+        "grpc_test_util",
+        "grpc",
+        "gpr_test_util",
+        "gpr"
+      ]
+    },
+    {
       "name": "murmur_hash_test",
       "build": "test",
       "language": "c",
@@ -1634,15 +1648,15 @@
       ]
     },
     {
-      "name": "qps_client",
+      "name": "pubsub_client",
       "build": "test",
       "run": false,
       "language": "c++",
       "src": [
-        "test/cpp/qps/qpstest.proto",
-        "test/cpp/qps/client.cc"
+        "examples/pubsub/main.cc"
       ],
       "deps": [
+        "pubsub_client_lib",
         "grpc++_test_util",
         "grpc_test_util",
         "grpc++",
@@ -1652,15 +1666,14 @@
       ]
     },
     {
-      "name": "qps_server",
+      "name": "pubsub_publisher_test",
       "build": "test",
-      "run": false,
       "language": "c++",
       "src": [
-        "test/cpp/qps/qpstest.proto",
-        "test/cpp/qps/server.cc"
+        "examples/pubsub/publisher_test.cc"
       ],
       "deps": [
+        "pubsub_client_lib",
         "grpc++_test_util",
         "grpc_test_util",
         "grpc++",
@@ -1670,30 +1683,15 @@
       ]
     },
     {
-      "name": "ruby_plugin",
-      "build": "protoc",
-      "language": "c++",
-      "headers": [
-        "src/compiler/cpp_generator.h",
-        "src/compiler/cpp_generator_helpers-inl.h",
-        "src/compiler/cpp_generator_map-inl.h",
-        "src/compiler/cpp_generator_string-inl.h"
-      ],
-      "src": [
-        "src/compiler/ruby_generator.cc",
-        "src/compiler/ruby_plugin.cc"
-      ],
-      "deps": [],
-      "secure": false
-    },
-    {
-      "name": "status_test",
+      "name": "pubsub_subscriber_test",
       "build": "test",
       "language": "c++",
       "src": [
-        "test/cpp/util/status_test.cc"
+        "examples/pubsub/subscriber_test.cc"
       ],
       "deps": [
+        "pubsub_client_lib",
+        "grpc++_test_util",
         "grpc_test_util",
         "grpc++",
         "grpc",
@@ -1702,11 +1700,13 @@
       ]
     },
     {
-      "name": "sync_client_async_server_test",
+      "name": "qps_client",
       "build": "test",
+      "run": false,
       "language": "c++",
       "src": [
-        "test/cpp/end2end/sync_client_async_server_test.cc"
+        "test/cpp/qps/qpstest.proto",
+        "test/cpp/qps/client.cc"
       ],
       "deps": [
         "grpc++_test_util",
@@ -1718,13 +1718,16 @@
       ]
     },
     {
-      "name": "thread_pool_test",
+      "name": "qps_server",
       "build": "test",
+      "run": false,
       "language": "c++",
       "src": [
-        "test/cpp/server/thread_pool_test.cc"
+        "test/cpp/qps/qpstest.proto",
+        "test/cpp/qps/server.cc"
       ],
       "deps": [
+        "grpc++_test_util",
         "grpc_test_util",
         "grpc++",
         "grpc",
@@ -1733,16 +1736,30 @@
       ]
     },
     {
-      "name": "pubsub_client",
+      "name": "ruby_plugin",
+      "build": "protoc",
+      "language": "c++",
+      "headers": [
+        "src/compiler/cpp_generator.h",
+        "src/compiler/cpp_generator_helpers-inl.h",
+        "src/compiler/cpp_generator_map-inl.h",
+        "src/compiler/cpp_generator_string-inl.h"
+      ],
+      "src": [
+        "src/compiler/ruby_generator.cc",
+        "src/compiler/ruby_plugin.cc"
+      ],
+      "deps": [],
+      "secure": false
+    },
+    {
+      "name": "status_test",
       "build": "test",
-      "run": false,
       "language": "c++",
       "src": [
-        "examples/pubsub/main.cc"
+        "test/cpp/util/status_test.cc"
       ],
       "deps": [
-        "pubsub_client_lib",
-        "grpc++_test_util",
         "grpc_test_util",
         "grpc++",
         "grpc",
@@ -1751,14 +1768,13 @@
       ]
     },
     {
-      "name": "pubsub_publisher_test",
+      "name": "sync_client_async_server_test",
       "build": "test",
       "language": "c++",
       "src": [
-        "examples/pubsub/publisher_test.cc"
+        "test/cpp/end2end/sync_client_async_server_test.cc"
       ],
       "deps": [
-        "pubsub_client_lib",
         "grpc++_test_util",
         "grpc_test_util",
         "grpc++",
@@ -1768,15 +1784,13 @@
       ]
     },
     {
-      "name": "pubsub_subscriber_test",
+      "name": "thread_pool_test",
       "build": "test",
       "language": "c++",
       "src": [
-        "examples/pubsub/subscriber_test.cc"
+        "test/cpp/server/thread_pool_test.cc"
       ],
       "deps": [
-        "pubsub_client_lib",
-        "grpc++_test_util",
         "grpc_test_util",
         "grpc++",
         "grpc",
diff --git a/src/core/surface/init.c b/src/core/surface/init.c
index b5019eb03f..4d639fcbce 100644
--- a/src/core/surface/init.c
+++ b/src/core/surface/init.c
@@ -35,12 +35,32 @@
 #include "src/core/statistics/census_interface.h"
 #include "src/core/iomgr/iomgr.h"
 
+static gpr_once g_init = GPR_ONCE_INIT;
+static gpr_mu g_init_mu;
+static int g_initializations;
+
+static void do_init() {
+  gpr_mu_init(&g_init_mu);
+  g_initializations = 0;
+}
+
 void grpc_init(void) {
-  grpc_iomgr_init();
-  census_init();
+  gpr_once_init(&g_init, do_init);
+
+  gpr_mu_lock(&g_init_mu);
+  if (++g_initializations == 1) {
+    grpc_iomgr_init();
+    census_init();
+  }
+  gpr_mu_unlock(&g_init_mu);
 }
 
 void grpc_shutdown(void) {
-  grpc_iomgr_shutdown();
-  census_shutdown();
+  gpr_mu_lock(&g_init_mu);
+  if (--g_initializations == 0) {
+    grpc_iomgr_shutdown();
+    census_shutdown();
+  }
+  gpr_mu_unlock(&g_init_mu);
 }
+
diff --git a/test/core/surface/multi_init_test.c b/test/core/surface/multi_init_test.c
new file mode 100644
index 0000000000..3607c42453
--- /dev/null
+++ b/test/core/surface/multi_init_test.c
@@ -0,0 +1,53 @@
+/*
+ *
+ * Copyright 2014, 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 <grpc/grpc.h>
+#include "test/core/util/test_config.h"
+
+static void test(int rounds) {
+  int i;
+  for (i = 0; i < rounds; i++) {
+    grpc_init();
+  }
+  for (i = 0; i < rounds; i++) {
+    grpc_shutdown();
+  }
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+  test(1);
+  test(2);
+  test(3);
+  return 0;
+}
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index 30b0da4a1d..2b3e6702c5 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -215,6 +215,10 @@
   }, 
   {
     "language": "c", 
+    "name": "multi_init_test"
+  }, 
+  {
+    "language": "c", 
     "name": "murmur_hash_test"
   }, 
   {
@@ -279,23 +283,23 @@
   }, 
   {
     "language": "c++", 
-    "name": "status_test"
+    "name": "pubsub_publisher_test"
   }, 
   {
     "language": "c++", 
-    "name": "sync_client_async_server_test"
+    "name": "pubsub_subscriber_test"
   }, 
   {
     "language": "c++", 
-    "name": "thread_pool_test"
+    "name": "status_test"
   }, 
   {
     "language": "c++", 
-    "name": "pubsub_publisher_test"
+    "name": "sync_client_async_server_test"
   }, 
   {
     "language": "c++", 
-    "name": "pubsub_subscriber_test"
+    "name": "thread_pool_test"
   }, 
   {
     "language": "c", 
diff --git a/vsprojects/vs2013/Grpc.mak b/vsprojects/vs2013/Grpc.mak
index ae57791a54..f4e9f46b68 100644
--- a/vsprojects/vs2013/Grpc.mak
+++ b/vsprojects/vs2013/Grpc.mak
@@ -25,10 +25,10 @@ grpc_test_util:
 $(OUT_DIR):
 	mkdir $(OUT_DIR)
 
-buildtests: alarm_heap_test.exe alarm_list_test.exe alarm_test.exe alpn_test.exe bin_encoder_test.exe census_hash_table_test.exe census_statistics_multiple_writers_circular_buffer_test.exe census_statistics_multiple_writers_test.exe census_statistics_performance_test.exe census_statistics_quick_test.exe census_statistics_small_log_test.exe census_stats_store_test.exe census_stub_test.exe census_trace_store_test.exe census_window_stats_test.exe chttp2_status_conversion_test.exe chttp2_stream_encoder_test.exe chttp2_stream_map_test.exe chttp2_transport_end2end_test.exe dualstack_socket_test.exe echo_test.exe fd_posix_test.exe fling_stream_test.exe fling_test.exe gpr_cancellable_test.exe gpr_cmdline_test.exe gpr_env_test.exe gpr_file_test.exe gpr_histogram_test.exe gpr_host_port_test.exe gpr_log_test.exe gpr_slice_buffer_test.exe gpr_slice_test.exe gpr_string_test.exe gpr_sync_test.exe gpr_thd_test.exe gpr_time_test.exe gpr_useful_test.exe grpc_base64_test.exe grpc_byte_buffer_reader_test.exe grpc_channel_stack_test.exe grpc_completion_queue_test.exe grpc_credentials_test.exe grpc_json_token_test.exe grpc_stream_op_test.exe hpack_parser_test.exe hpack_table_test.exe httpcli_format_request_test.exe httpcli_parser_test.exe httpcli_test.exe json_rewrite_test.exe json_test.exe lame_client_test.exe message_compress_test.exe metadata_buffer_test.exe murmur_hash_test.exe no_server_test.exe poll_kick_posix_test.exe resolve_address_test.exe secure_endpoint_test.exe sockaddr_utils_test.exe tcp_client_posix_test.exe tcp_posix_test.exe tcp_server_posix_test.exe time_averaged_stats_test.exe time_test.exe timeout_encoding_test.exe transport_metadata_test.exe 
+buildtests: alarm_heap_test.exe alarm_list_test.exe alarm_test.exe alpn_test.exe bin_encoder_test.exe census_hash_table_test.exe census_statistics_multiple_writers_circular_buffer_test.exe census_statistics_multiple_writers_test.exe census_statistics_performance_test.exe census_statistics_quick_test.exe census_statistics_small_log_test.exe census_stats_store_test.exe census_stub_test.exe census_trace_store_test.exe census_window_stats_test.exe chttp2_status_conversion_test.exe chttp2_stream_encoder_test.exe chttp2_stream_map_test.exe chttp2_transport_end2end_test.exe dualstack_socket_test.exe echo_test.exe fd_posix_test.exe fling_stream_test.exe fling_test.exe gpr_cancellable_test.exe gpr_cmdline_test.exe gpr_env_test.exe gpr_file_test.exe gpr_histogram_test.exe gpr_host_port_test.exe gpr_log_test.exe gpr_slice_buffer_test.exe gpr_slice_test.exe gpr_string_test.exe gpr_sync_test.exe gpr_thd_test.exe gpr_time_test.exe gpr_useful_test.exe grpc_base64_test.exe grpc_byte_buffer_reader_test.exe grpc_channel_stack_test.exe grpc_completion_queue_test.exe grpc_credentials_test.exe grpc_json_token_test.exe grpc_stream_op_test.exe hpack_parser_test.exe hpack_table_test.exe httpcli_format_request_test.exe httpcli_parser_test.exe httpcli_test.exe json_rewrite_test.exe json_test.exe lame_client_test.exe message_compress_test.exe metadata_buffer_test.exe multi_init_test.exe murmur_hash_test.exe no_server_test.exe poll_kick_posix_test.exe resolve_address_test.exe secure_endpoint_test.exe sockaddr_utils_test.exe tcp_client_posix_test.exe tcp_posix_test.exe tcp_server_posix_test.exe time_averaged_stats_test.exe time_test.exe timeout_encoding_test.exe transport_metadata_test.exe 
 	echo All tests built.
 
-test: alarm_heap_test alarm_list_test alarm_test alpn_test bin_encoder_test census_hash_table_test census_statistics_multiple_writers_circular_buffer_test census_statistics_multiple_writers_test census_statistics_performance_test census_statistics_quick_test census_statistics_small_log_test census_stats_store_test census_stub_test census_trace_store_test census_window_stats_test chttp2_status_conversion_test chttp2_stream_encoder_test chttp2_stream_map_test chttp2_transport_end2end_test dualstack_socket_test echo_test fd_posix_test fling_stream_test fling_test gpr_cancellable_test gpr_cmdline_test gpr_env_test gpr_file_test gpr_histogram_test gpr_host_port_test gpr_log_test gpr_slice_buffer_test gpr_slice_test gpr_string_test gpr_sync_test gpr_thd_test gpr_time_test gpr_useful_test grpc_base64_test grpc_byte_buffer_reader_test grpc_channel_stack_test grpc_completion_queue_test grpc_credentials_test grpc_json_token_test grpc_stream_op_test hpack_parser_test hpack_table_test httpcli_format_request_test httpcli_parser_test httpcli_test json_rewrite_test json_test lame_client_test message_compress_test metadata_buffer_test murmur_hash_test no_server_test poll_kick_posix_test resolve_address_test secure_endpoint_test sockaddr_utils_test tcp_client_posix_test tcp_posix_test tcp_server_posix_test time_averaged_stats_test time_test timeout_encoding_test transport_metadata_test 
+test: alarm_heap_test alarm_list_test alarm_test alpn_test bin_encoder_test census_hash_table_test census_statistics_multiple_writers_circular_buffer_test census_statistics_multiple_writers_test census_statistics_performance_test census_statistics_quick_test census_statistics_small_log_test census_stats_store_test census_stub_test census_trace_store_test census_window_stats_test chttp2_status_conversion_test chttp2_stream_encoder_test chttp2_stream_map_test chttp2_transport_end2end_test dualstack_socket_test echo_test fd_posix_test fling_stream_test fling_test gpr_cancellable_test gpr_cmdline_test gpr_env_test gpr_file_test gpr_histogram_test gpr_host_port_test gpr_log_test gpr_slice_buffer_test gpr_slice_test gpr_string_test gpr_sync_test gpr_thd_test gpr_time_test gpr_useful_test grpc_base64_test grpc_byte_buffer_reader_test grpc_channel_stack_test grpc_completion_queue_test grpc_credentials_test grpc_json_token_test grpc_stream_op_test hpack_parser_test hpack_table_test httpcli_format_request_test httpcli_parser_test httpcli_test json_rewrite_test json_test lame_client_test message_compress_test metadata_buffer_test multi_init_test murmur_hash_test no_server_test poll_kick_posix_test resolve_address_test secure_endpoint_test sockaddr_utils_test tcp_client_posix_test tcp_posix_test tcp_server_posix_test time_averaged_stats_test time_test timeout_encoding_test transport_metadata_test 
 	echo All tests ran.
 
 test_gpr: gpr_cancellable_test gpr_cmdline_test gpr_env_test gpr_file_test gpr_histogram_test gpr_host_port_test gpr_log_test gpr_slice_buffer_test gpr_slice_test gpr_string_test gpr_sync_test gpr_thd_test gpr_time_test gpr_useful_test 
@@ -546,6 +546,14 @@ metadata_buffer_test: metadata_buffer_test.exe
 	echo Running metadata_buffer_test
 	$(OUT_DIR)\metadata_buffer_test.exe
 
+multi_init_test.exe: grpc_test_util
+	echo Building multi_init_test
+	$(CC) $(CFLAGS) /Fo:$(OUT_DIR)\ ..\..\test\core\surface\multi_init_test.c 
+	$(LINK) $(LFLAGS) /OUT:"$(OUT_DIR)\multi_init_test.exe" Debug\grpc_test_util.lib Debug\grpc.lib Debug\gpr_test_util.lib Debug\gpr.lib $(LIBS) $(OUT_DIR)\multi_init_test.obj 
+multi_init_test: multi_init_test.exe
+	echo Running multi_init_test
+	$(OUT_DIR)\multi_init_test.exe
+
 murmur_hash_test.exe: grpc_test_util
 	echo Building murmur_hash_test
 	$(CC) $(CFLAGS) /Fo:$(OUT_DIR)\ ..\..\test\core\support\murmur_hash_test.c 
diff --git a/vsprojects/vs2013/grpc.vcxproj b/vsprojects/vs2013/grpc.vcxproj
index fc740fec92..dab819c51b 100644
--- a/vsprojects/vs2013/grpc.vcxproj
+++ b/vsprojects/vs2013/grpc.vcxproj
@@ -271,10 +271,10 @@
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_kick.c">
     </ClCompile>
-    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
-    </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_epoll.c">
     </ClCompile>
+    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
+    </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_posix.c">
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_windows.c">
diff --git a/vsprojects/vs2013/grpc.vcxproj.filters b/vsprojects/vs2013/grpc.vcxproj.filters
index 75ecc7a822..8c174d9159 100644
--- a/vsprojects/vs2013/grpc.vcxproj.filters
+++ b/vsprojects/vs2013/grpc.vcxproj.filters
@@ -127,10 +127,10 @@
     <ClCompile Include="..\..\src\core\iomgr\pollset_kick.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
+    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_epoll.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_epoll.c">
+    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_posix.c">
diff --git a/vsprojects/vs2013/grpc_shared.vcxproj b/vsprojects/vs2013/grpc_shared.vcxproj
index 71b4a0cbab..7ef520b7b6 100644
--- a/vsprojects/vs2013/grpc_shared.vcxproj
+++ b/vsprojects/vs2013/grpc_shared.vcxproj
@@ -275,10 +275,10 @@
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_kick.c">
     </ClCompile>
-    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
-    </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_epoll.c">
     </ClCompile>
+    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
+    </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_posix.c">
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_windows.c">
diff --git a/vsprojects/vs2013/grpc_shared.vcxproj.filters b/vsprojects/vs2013/grpc_shared.vcxproj.filters
index 75ecc7a822..8c174d9159 100644
--- a/vsprojects/vs2013/grpc_shared.vcxproj.filters
+++ b/vsprojects/vs2013/grpc_shared.vcxproj.filters
@@ -127,10 +127,10 @@
     <ClCompile Include="..\..\src\core\iomgr\pollset_kick.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
+    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_epoll.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_epoll.c">
+    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_posix.c">
diff --git a/vsprojects/vs2013/grpc_unsecure.vcxproj b/vsprojects/vs2013/grpc_unsecure.vcxproj
index c5130eee5e..8b3b853cce 100644
--- a/vsprojects/vs2013/grpc_unsecure.vcxproj
+++ b/vsprojects/vs2013/grpc_unsecure.vcxproj
@@ -233,10 +233,10 @@
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_kick.c">
     </ClCompile>
-    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
-    </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_epoll.c">
     </ClCompile>
+    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
+    </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_posix.c">
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_windows.c">
diff --git a/vsprojects/vs2013/grpc_unsecure.vcxproj.filters b/vsprojects/vs2013/grpc_unsecure.vcxproj.filters
index 50f319066f..6fac846422 100644
--- a/vsprojects/vs2013/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vs2013/grpc_unsecure.vcxproj.filters
@@ -88,10 +88,10 @@
     <ClCompile Include="..\..\src\core\iomgr\pollset_kick.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
+    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_epoll.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_epoll.c">
+    <ClCompile Include="..\..\src\core\iomgr\pollset_multipoller_with_poll_posix.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\pollset_posix.c">