Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | 6169d5f | 2016-03-31 07:46:18 -0700 | [diff] [blame] | 3 | * Copyright 2015, Google Inc. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
Craig Tiller | 8f8e9f9 | 2016-03-29 09:41:28 -0700 | [diff] [blame] | 34 | #include "src/core/ext/census/grpc_filter.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 35 | |
| 36 | #include <stdio.h> |
| 37 | #include <string.h> |
| 38 | |
murgatroid99 | 8685459 | 2015-08-27 10:27:19 -0700 | [diff] [blame] | 39 | #include <grpc/census.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 40 | #include <grpc/support/alloc.h> |
| 41 | #include <grpc/support/log.h> |
| 42 | #include <grpc/support/slice.h> |
| 43 | #include <grpc/support/time.h> |
| 44 | |
Craig Tiller | 8f8e9f9 | 2016-03-29 09:41:28 -0700 | [diff] [blame] | 45 | #include "src/core/ext/census/census_interface.h" |
| 46 | #include "src/core/ext/census/census_rpc_stats.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 47 | #include "src/core/lib/channel/channel_stack.h" |
Craig Tiller | bfc9adc | 2016-06-27 13:16:22 -0700 | [diff] [blame] | 48 | #include "src/core/lib/profiling/timers.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 49 | #include "src/core/lib/transport/static_metadata.h" |
Craig Tiller | ed43f51 | 2015-11-19 08:53:23 -0800 | [diff] [blame] | 50 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 51 | typedef struct call_data { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 52 | census_op_id op_id; |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 53 | census_context *ctxt; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 54 | gpr_timespec start_ts; |
Hongyu Chen | 3c9b873 | 2015-08-13 17:01:02 -0700 | [diff] [blame] | 55 | int error; |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 56 | |
| 57 | /* recv callback */ |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 58 | grpc_metadata_batch *recv_initial_metadata; |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 59 | grpc_closure *on_done_recv; |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 60 | grpc_closure finish_recv; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 61 | } call_data; |
| 62 | |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 63 | typedef struct channel_data { uint8_t unused; } channel_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 64 | |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 65 | static void extract_and_annotate_method_tag(grpc_metadata_batch *md, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 66 | call_data *calld, |
| 67 | channel_data *chand) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 68 | grpc_linked_mdelem *m; |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 69 | for (m = md->list.head; m != NULL; m = m->next) { |
Craig Tiller | ed43f51 | 2015-11-19 08:53:23 -0800 | [diff] [blame] | 70 | if (m->md->key == GRPC_MDSTR_PATH) { |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 71 | gpr_log(GPR_DEBUG, "%s", |
| 72 | (const char *)GPR_SLICE_START_PTR(m->md->value->slice)); |
| 73 | /* Add method tag here */ |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 74 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 75 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 76 | } |
| 77 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 78 | static void client_mutate_op(grpc_call_element *elem, |
| 79 | grpc_transport_stream_op *op) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 80 | call_data *calld = elem->call_data; |
| 81 | channel_data *chand = elem->channel_data; |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 82 | if (op->send_initial_metadata) { |
| 83 | extract_and_annotate_method_tag(op->send_initial_metadata, calld, chand); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 84 | } |
Craig Tiller | 3f2c221 | 2015-04-23 07:56:33 -0700 | [diff] [blame] | 85 | } |
| 86 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 87 | static void client_start_transport_op(grpc_exec_ctx *exec_ctx, |
| 88 | grpc_call_element *elem, |
| 89 | grpc_transport_stream_op *op) { |
| 90 | client_mutate_op(elem, op); |
| 91 | grpc_call_next_op(exec_ctx, elem, op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 92 | } |
| 93 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 94 | static void server_on_done_recv(grpc_exec_ctx *exec_ctx, void *ptr, |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 95 | grpc_error *error) { |
Craig Tiller | bfc9adc | 2016-06-27 13:16:22 -0700 | [diff] [blame] | 96 | GPR_TIMER_BEGIN("census-server:server_on_done_recv", 0); |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 97 | grpc_call_element *elem = ptr; |
| 98 | call_data *calld = elem->call_data; |
| 99 | channel_data *chand = elem->channel_data; |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 100 | if (error == GRPC_ERROR_NONE) { |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 101 | extract_and_annotate_method_tag(calld->recv_initial_metadata, calld, chand); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 102 | } |
Craig Tiller | 804ff71 | 2016-05-05 16:25:40 -0700 | [diff] [blame] | 103 | calld->on_done_recv->cb(exec_ctx, calld->on_done_recv->cb_arg, error); |
Craig Tiller | bfc9adc | 2016-06-27 13:16:22 -0700 | [diff] [blame] | 104 | GPR_TIMER_END("census-server:server_on_done_recv", 0); |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 105 | } |
| 106 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 107 | static void server_mutate_op(grpc_call_element *elem, |
| 108 | grpc_transport_stream_op *op) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 109 | call_data *calld = elem->call_data; |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 110 | if (op->recv_initial_metadata) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 111 | /* substitute our callback for the op callback */ |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 112 | calld->recv_initial_metadata = op->recv_initial_metadata; |
Craig Tiller | a44cbfc | 2016-02-03 16:02:49 -0800 | [diff] [blame] | 113 | calld->on_done_recv = op->recv_initial_metadata_ready; |
| 114 | op->recv_initial_metadata_ready = &calld->finish_recv; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 115 | } |
Craig Tiller | 3f2c221 | 2015-04-23 07:56:33 -0700 | [diff] [blame] | 116 | } |
| 117 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 118 | static void server_start_transport_op(grpc_exec_ctx *exec_ctx, |
| 119 | grpc_call_element *elem, |
| 120 | grpc_transport_stream_op *op) { |
Craig Tiller | 7908f16 | 2015-12-10 11:31:49 -0800 | [diff] [blame] | 121 | /* TODO(ctiller): this code fails. I don't know why. I expect it's |
| 122 | incomplete, and someone should look at it soon. |
| 123 | |
| 124 | call_data *calld = elem->call_data; |
Craig Tiller | 5a95c34 | 2015-12-10 10:59:38 -0800 | [diff] [blame] | 125 | GPR_ASSERT((calld->op_id.upper != 0) || (calld->op_id.lower != 0)); */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 126 | server_mutate_op(elem, op); |
| 127 | grpc_call_next_op(exec_ctx, elem, op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 128 | } |
| 129 | |
Mark D. Roth | 76d2442 | 2016-06-23 13:22:10 -0700 | [diff] [blame] | 130 | static grpc_error *client_init_call_elem(grpc_exec_ctx *exec_ctx, |
Mark D. Roth | 0badbe8 | 2016-06-23 10:15:12 -0700 | [diff] [blame] | 131 | grpc_call_element *elem, |
| 132 | grpc_call_element_args *args) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 133 | call_data *d = elem->call_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 134 | GPR_ASSERT(d != NULL); |
Hongyu Chen | 738e91e | 2015-10-13 15:05:00 -0700 | [diff] [blame] | 135 | memset(d, 0, sizeof(*d)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 136 | d->start_ts = gpr_now(GPR_CLOCK_REALTIME); |
Mark D. Roth | 0badbe8 | 2016-06-23 10:15:12 -0700 | [diff] [blame] | 137 | return GRPC_ERROR_NONE; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 138 | } |
| 139 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 140 | static void client_destroy_call_elem(grpc_exec_ctx *exec_ctx, |
David Garcia Quintas | 9ef0e1c | 2016-04-14 12:44:30 -0700 | [diff] [blame] | 141 | grpc_call_element *elem, |
David Garcia Quintas | 01c4d99 | 2016-07-07 20:11:27 -0700 | [diff] [blame] | 142 | const grpc_call_final_info *final_info, |
David Garcia Quintas | 580987a | 2016-04-29 17:26:33 -0700 | [diff] [blame] | 143 | void *ignored) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 144 | call_data *d = elem->call_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 145 | GPR_ASSERT(d != NULL); |
Hongyu Chen | 58c927c | 2015-08-14 15:19:13 -0700 | [diff] [blame] | 146 | /* TODO(hongyu): record rpc client stats and census_rpc_end_op here */ |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 147 | } |
| 148 | |
Mark D. Roth | 76d2442 | 2016-06-23 13:22:10 -0700 | [diff] [blame] | 149 | static grpc_error *server_init_call_elem(grpc_exec_ctx *exec_ctx, |
Mark D. Roth | 0badbe8 | 2016-06-23 10:15:12 -0700 | [diff] [blame] | 150 | grpc_call_element *elem, |
| 151 | grpc_call_element_args *args) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 152 | call_data *d = elem->call_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 153 | GPR_ASSERT(d != NULL); |
Hongyu Chen | 738e91e | 2015-10-13 15:05:00 -0700 | [diff] [blame] | 154 | memset(d, 0, sizeof(*d)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 155 | d->start_ts = gpr_now(GPR_CLOCK_REALTIME); |
Hongyu Chen | 3c9b873 | 2015-08-13 17:01:02 -0700 | [diff] [blame] | 156 | /* TODO(hongyu): call census_tracing_start_op here. */ |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 157 | grpc_closure_init(&d->finish_recv, server_on_done_recv, elem); |
Mark D. Roth | 0badbe8 | 2016-06-23 10:15:12 -0700 | [diff] [blame] | 158 | return GRPC_ERROR_NONE; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 159 | } |
| 160 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 161 | static void server_destroy_call_elem(grpc_exec_ctx *exec_ctx, |
David Garcia Quintas | 9ef0e1c | 2016-04-14 12:44:30 -0700 | [diff] [blame] | 162 | grpc_call_element *elem, |
David Garcia Quintas | 01c4d99 | 2016-07-07 20:11:27 -0700 | [diff] [blame] | 163 | const grpc_call_final_info *final_info, |
David Garcia Quintas | 580987a | 2016-04-29 17:26:33 -0700 | [diff] [blame] | 164 | void *ignored) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 165 | call_data *d = elem->call_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 166 | GPR_ASSERT(d != NULL); |
Hongyu Chen | 58c927c | 2015-08-14 15:19:13 -0700 | [diff] [blame] | 167 | /* TODO(hongyu): record rpc server stats and census_tracing_end_op here */ |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 168 | } |
| 169 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 170 | static void init_channel_elem(grpc_exec_ctx *exec_ctx, |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 171 | grpc_channel_element *elem, |
| 172 | grpc_channel_element_args *args) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 173 | channel_data *chand = elem->channel_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 174 | GPR_ASSERT(chand != NULL); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 175 | } |
| 176 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 177 | static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, |
| 178 | grpc_channel_element *elem) { |
Craig Tiller | 45724b3 | 2015-09-22 10:42:19 -0700 | [diff] [blame] | 179 | channel_data *chand = elem->channel_data; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 180 | GPR_ASSERT(chand != NULL); |
hongyu | 24200d3 | 2015-01-08 15:13:49 -0800 | [diff] [blame] | 181 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 182 | |
| 183 | const grpc_channel_filter grpc_client_census_filter = { |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 184 | client_start_transport_op, |
| 185 | grpc_channel_next_op, |
| 186 | sizeof(call_data), |
| 187 | client_init_call_elem, |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 188 | grpc_call_stack_ignore_set_pollset_or_pollset_set, |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 189 | client_destroy_call_elem, |
| 190 | sizeof(channel_data), |
| 191 | init_channel_elem, |
| 192 | destroy_channel_elem, |
| 193 | grpc_call_next_get_peer, |
| 194 | "census-client"}; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 195 | |
| 196 | const grpc_channel_filter grpc_server_census_filter = { |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 197 | server_start_transport_op, |
| 198 | grpc_channel_next_op, |
| 199 | sizeof(call_data), |
| 200 | server_init_call_elem, |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 201 | grpc_call_stack_ignore_set_pollset_or_pollset_set, |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 202 | server_destroy_call_elem, |
| 203 | sizeof(channel_data), |
| 204 | init_channel_elem, |
| 205 | destroy_channel_elem, |
| 206 | grpc_call_next_get_peer, |
| 207 | "census-server"}; |