checkpoint
diff --git a/src/core/ext/census/gen/census.pb.h b/src/core/ext/census/gen/census.pb.h
new file mode 100644
index 0000000..315c93f
--- /dev/null
+++ b/src/core/ext/census/gen/census.pb.h
@@ -0,0 +1,275 @@
+/*
+ *
+ * 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.
+ *
+ */
+/* Automatically generated nanopb header */
+/* Generated by nanopb-0.3.5-dev */
+
+#ifndef PB_CENSUS_PB_H_INCLUDED
+#define PB_CENSUS_PB_H_INCLUDED
+#include "third_party/nanopb/pb.h"
+#include "google/protobuf/duration.pb.h"
+
+#include "google/protobuf/timestamp.pb.h"
+
+#if PB_PROTO_HEADER_VERSION != 30
+#error Regenerate this file with the current version of nanopb generator.
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Enum definitions */
+typedef enum _google_census_Metric_BasicUnit_Measure {
+ google_census_Metric_BasicUnit_Measure_UNKNOWN = 0,
+ google_census_Metric_BasicUnit_Measure_BITS = 1,
+ google_census_Metric_BasicUnit_Measure_BYTES = 2,
+ google_census_Metric_BasicUnit_Measure_SECS = 3,
+ google_census_Metric_BasicUnit_Measure_CORES = 4,
+ google_census_Metric_BasicUnit_Measure_MAX_UNITS = 5
+} google_census_Metric_BasicUnit_Measure;
+
+/* Struct definitions */
+typedef struct _google_census_AggregationDescriptor_BucketBoundaries {
+ pb_callback_t bounds;
+} google_census_AggregationDescriptor_BucketBoundaries;
+
+typedef struct _google_census_AggregationDescriptor_IntervalBoundaries {
+ pb_callback_t window_size;
+} google_census_AggregationDescriptor_IntervalBoundaries;
+
+typedef struct _google_census_IntervalStats {
+ pb_callback_t window;
+} google_census_IntervalStats;
+
+typedef struct _google_census_AggregationDescriptor {
+ pb_size_t which_options;
+ union {
+ google_census_AggregationDescriptor_BucketBoundaries bucket_boundaries;
+ google_census_AggregationDescriptor_IntervalBoundaries interval_boundaries;
+ } options;
+} google_census_AggregationDescriptor;
+
+typedef struct _google_census_Distribution_Range {
+ bool has_min;
+ double min;
+ bool has_max;
+ double max;
+} google_census_Distribution_Range;
+
+typedef struct _google_census_IntervalStats_Window {
+ bool has_window_size;
+ google_protobuf_Duration window_size;
+ bool has_count;
+ int64_t count;
+ bool has_mean;
+ double mean;
+} google_census_IntervalStats_Window;
+
+typedef struct _google_census_Metric_BasicUnit {
+ bool has_type;
+ google_census_Metric_BasicUnit_Measure type;
+} google_census_Metric_BasicUnit;
+
+typedef struct _google_census_Metric_MeasurementUnit {
+ bool has_prefix;
+ int32_t prefix;
+ pb_callback_t numerator;
+ pb_callback_t denominator;
+} google_census_Metric_MeasurementUnit;
+
+typedef struct _google_census_Tag {
+ bool has_key;
+ char key[255];
+ bool has_value;
+ char value[255];
+} google_census_Tag;
+
+typedef struct _google_census_ViewAggregations {
+ pb_callback_t aggregation;
+ bool has_start;
+ google_protobuf_Timestamp start;
+ bool has_end;
+ google_protobuf_Timestamp end;
+} google_census_ViewAggregations;
+
+typedef struct _google_census_Distribution {
+ bool has_count;
+ int64_t count;
+ bool has_mean;
+ double mean;
+ bool has_sum_of_squared_deviation;
+ double sum_of_squared_deviation;
+ bool has_range;
+ google_census_Distribution_Range range;
+ pb_callback_t bucket_count;
+} google_census_Distribution;
+
+typedef struct _google_census_Metric {
+ pb_callback_t name;
+ pb_callback_t description;
+ bool has_unit;
+ google_census_Metric_MeasurementUnit unit;
+ bool has_id;
+ int32_t id;
+} google_census_Metric;
+
+typedef struct _google_census_View {
+ pb_callback_t name;
+ pb_callback_t description;
+ bool has_metric_id;
+ int32_t metric_id;
+ bool has_aggregation;
+ google_census_AggregationDescriptor aggregation;
+ pb_callback_t tag_key;
+} google_census_View;
+
+typedef struct _google_census_Aggregation {
+ pb_callback_t name;
+ pb_callback_t description;
+ pb_size_t which_data;
+ union {
+ google_census_Distribution distribution;
+ google_census_IntervalStats interval_stats;
+ } data;
+ pb_callback_t tag;
+} google_census_Aggregation;
+
+/* Default values for struct fields */
+
+/* Initializer values for message structs */
+#define google_census_Metric_init_default {{{NULL}, NULL}, {{NULL}, NULL}, false, google_census_Metric_MeasurementUnit_init_default, false, 0}
+#define google_census_Metric_BasicUnit_init_default {false, (google_census_Metric_BasicUnit_Measure)0}
+#define google_census_Metric_MeasurementUnit_init_default {false, 0, {{NULL}, NULL}, {{NULL}, NULL}}
+#define google_census_AggregationDescriptor_init_default {0, {google_census_AggregationDescriptor_BucketBoundaries_init_default}}
+#define google_census_AggregationDescriptor_BucketBoundaries_init_default {{{NULL}, NULL}}
+#define google_census_AggregationDescriptor_IntervalBoundaries_init_default {{{NULL}, NULL}}
+#define google_census_Distribution_init_default {false, 0, false, 0, false, 0, false, google_census_Distribution_Range_init_default, {{NULL}, NULL}}
+#define google_census_Distribution_Range_init_default {false, 0, false, 0}
+#define google_census_IntervalStats_init_default {{{NULL}, NULL}}
+#define google_census_IntervalStats_Window_init_default {false, google_protobuf_Duration_init_default, false, 0, false, 0}
+#define google_census_Tag_init_default {false, "", false, ""}
+#define google_census_View_init_default {{{NULL}, NULL}, {{NULL}, NULL}, false, 0, false, google_census_AggregationDescriptor_init_default, {{NULL}, NULL}}
+#define google_census_Aggregation_init_default {{{NULL}, NULL}, {{NULL}, NULL}, 0, {google_census_Distribution_init_default}, {{NULL}, NULL}}
+#define google_census_ViewAggregations_init_default {{{NULL}, NULL}, false, google_protobuf_Timestamp_init_default, false, google_protobuf_Timestamp_init_default}
+#define google_census_Metric_init_zero {{{NULL}, NULL}, {{NULL}, NULL}, false, google_census_Metric_MeasurementUnit_init_zero, false, 0}
+#define google_census_Metric_BasicUnit_init_zero {false, (google_census_Metric_BasicUnit_Measure)0}
+#define google_census_Metric_MeasurementUnit_init_zero {false, 0, {{NULL}, NULL}, {{NULL}, NULL}}
+#define google_census_AggregationDescriptor_init_zero {0, {google_census_AggregationDescriptor_BucketBoundaries_init_zero}}
+#define google_census_AggregationDescriptor_BucketBoundaries_init_zero {{{NULL}, NULL}}
+#define google_census_AggregationDescriptor_IntervalBoundaries_init_zero {{{NULL}, NULL}}
+#define google_census_Distribution_init_zero {false, 0, false, 0, false, 0, false, google_census_Distribution_Range_init_zero, {{NULL}, NULL}}
+#define google_census_Distribution_Range_init_zero {false, 0, false, 0}
+#define google_census_IntervalStats_init_zero {{{NULL}, NULL}}
+#define google_census_IntervalStats_Window_init_zero {false, google_protobuf_Duration_init_zero, false, 0, false, 0}
+#define google_census_Tag_init_zero {false, "", false, ""}
+#define google_census_View_init_zero {{{NULL}, NULL}, {{NULL}, NULL}, false, 0, false, google_census_AggregationDescriptor_init_zero, {{NULL}, NULL}}
+#define google_census_Aggregation_init_zero {{{NULL}, NULL}, {{NULL}, NULL}, 0, {google_census_Distribution_init_zero}, {{NULL}, NULL}}
+#define google_census_ViewAggregations_init_zero {{{NULL}, NULL}, false, google_protobuf_Timestamp_init_zero, false, google_protobuf_Timestamp_init_zero}
+
+/* Field tags (for use in manual encoding/decoding) */
+#define google_census_AggregationDescriptor_BucketBoundaries_bounds_tag 1
+#define google_census_AggregationDescriptor_IntervalBoundaries_window_size_tag 1
+#define google_census_IntervalStats_window_tag 1
+#define google_census_AggregationDescriptor_bucket_boundaries_tag 1
+
+#define google_census_AggregationDescriptor_interval_boundaries_tag 2
+#define google_census_Distribution_Range_min_tag 1
+#define google_census_Distribution_Range_max_tag 2
+#define google_census_IntervalStats_Window_window_size_tag 1
+#define google_census_IntervalStats_Window_count_tag 2
+#define google_census_IntervalStats_Window_mean_tag 3
+#define google_census_Metric_BasicUnit_type_tag 1
+#define google_census_Metric_MeasurementUnit_prefix_tag 1
+#define google_census_Metric_MeasurementUnit_numerator_tag 2
+#define google_census_Metric_MeasurementUnit_denominator_tag 3
+#define google_census_Tag_key_tag 1
+#define google_census_Tag_value_tag 2
+#define google_census_ViewAggregations_aggregation_tag 1
+#define google_census_ViewAggregations_start_tag 2
+#define google_census_ViewAggregations_end_tag 3
+#define google_census_Distribution_count_tag 1
+#define google_census_Distribution_mean_tag 2
+#define google_census_Distribution_sum_of_squared_deviation_tag 3
+#define google_census_Distribution_range_tag 4
+#define google_census_Distribution_bucket_count_tag 5
+#define google_census_Metric_name_tag 1
+#define google_census_Metric_description_tag 2
+#define google_census_Metric_unit_tag 3
+#define google_census_Metric_id_tag 4
+#define google_census_View_name_tag 1
+#define google_census_View_description_tag 2
+#define google_census_View_metric_id_tag 3
+#define google_census_View_aggregation_tag 4
+#define google_census_View_tag_key_tag 5
+#define google_census_Aggregation_distribution_tag 3
+
+#define google_census_Aggregation_interval_stats_tag 4
+#define google_census_Aggregation_name_tag 1
+#define google_census_Aggregation_description_tag 2
+#define google_census_Aggregation_tag_tag 5
+
+/* Struct field encoding specification for nanopb */
+extern const pb_field_t google_census_Metric_fields[5];
+extern const pb_field_t google_census_Metric_BasicUnit_fields[2];
+extern const pb_field_t google_census_Metric_MeasurementUnit_fields[4];
+extern const pb_field_t google_census_AggregationDescriptor_fields[3];
+extern const pb_field_t google_census_AggregationDescriptor_BucketBoundaries_fields[2];
+extern const pb_field_t google_census_AggregationDescriptor_IntervalBoundaries_fields[2];
+extern const pb_field_t google_census_Distribution_fields[6];
+extern const pb_field_t google_census_Distribution_Range_fields[3];
+extern const pb_field_t google_census_IntervalStats_fields[2];
+extern const pb_field_t google_census_IntervalStats_Window_fields[4];
+extern const pb_field_t google_census_Tag_fields[3];
+extern const pb_field_t google_census_View_fields[6];
+extern const pb_field_t google_census_Aggregation_fields[6];
+extern const pb_field_t google_census_ViewAggregations_fields[4];
+
+/* Maximum encoded size of messages (where known) */
+#define google_census_Metric_BasicUnit_size 2
+#define google_census_Distribution_Range_size 18
+#define google_census_IntervalStats_Window_size 44
+#define google_census_Tag_size 516
+
+/* Message IDs (where set with "msgid" option) */
+#ifdef PB_MSGID
+
+#define CENSUS_MESSAGES \
+
+
+#endif
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif