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Diffstat (limited to 'src/core/lib/census/grpc_filter.c')
-rw-r--r--src/core/lib/census/grpc_filter.c198
1 files changed, 0 insertions, 198 deletions
diff --git a/src/core/lib/census/grpc_filter.c b/src/core/lib/census/grpc_filter.c
deleted file mode 100644
index d27d789aa1..0000000000
--- a/src/core/lib/census/grpc_filter.c
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- *
- * 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/census/grpc_filter.h"
-
-#include <stdio.h>
-#include <string.h>
-
-#include <grpc/census.h>
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-#include <grpc/support/slice.h>
-#include <grpc/support/time.h>
-
-#include "src/core/lib/channel/channel_stack.h"
-#include "src/core/lib/statistics/census_interface.h"
-#include "src/core/lib/statistics/census_rpc_stats.h"
-#include "src/core/lib/transport/static_metadata.h"
-
-typedef struct call_data {
- census_op_id op_id;
- census_context *ctxt;
- gpr_timespec start_ts;
- int error;
-
- /* recv callback */
- grpc_metadata_batch *recv_initial_metadata;
- grpc_closure *on_done_recv;
- grpc_closure finish_recv;
-} call_data;
-
-typedef struct channel_data { uint8_t unused; } channel_data;
-
-static void extract_and_annotate_method_tag(grpc_metadata_batch *md,
- call_data *calld,
- channel_data *chand) {
- grpc_linked_mdelem *m;
- for (m = md->list.head; m != NULL; m = m->next) {
- if (m->md->key == GRPC_MDSTR_PATH) {
- gpr_log(GPR_DEBUG, "%s",
- (const char *)GPR_SLICE_START_PTR(m->md->value->slice));
- /* Add method tag here */
- }
- }
-}
-
-static void client_mutate_op(grpc_call_element *elem,
- grpc_transport_stream_op *op) {
- call_data *calld = elem->call_data;
- channel_data *chand = elem->channel_data;
- if (op->send_initial_metadata) {
- extract_and_annotate_method_tag(op->send_initial_metadata, calld, chand);
- }
-}
-
-static void client_start_transport_op(grpc_exec_ctx *exec_ctx,
- grpc_call_element *elem,
- grpc_transport_stream_op *op) {
- client_mutate_op(elem, op);
- grpc_call_next_op(exec_ctx, elem, op);
-}
-
-static void server_on_done_recv(grpc_exec_ctx *exec_ctx, void *ptr,
- bool success) {
- grpc_call_element *elem = ptr;
- call_data *calld = elem->call_data;
- channel_data *chand = elem->channel_data;
- if (success) {
- extract_and_annotate_method_tag(calld->recv_initial_metadata, calld, chand);
- }
- calld->on_done_recv->cb(exec_ctx, calld->on_done_recv->cb_arg, success);
-}
-
-static void server_mutate_op(grpc_call_element *elem,
- grpc_transport_stream_op *op) {
- call_data *calld = elem->call_data;
- if (op->recv_initial_metadata) {
- /* substitute our callback for the op callback */
- calld->recv_initial_metadata = op->recv_initial_metadata;
- calld->on_done_recv = op->recv_initial_metadata_ready;
- op->recv_initial_metadata_ready = &calld->finish_recv;
- }
-}
-
-static void server_start_transport_op(grpc_exec_ctx *exec_ctx,
- grpc_call_element *elem,
- grpc_transport_stream_op *op) {
- /* TODO(ctiller): this code fails. I don't know why. I expect it's
- incomplete, and someone should look at it soon.
-
- call_data *calld = elem->call_data;
- GPR_ASSERT((calld->op_id.upper != 0) || (calld->op_id.lower != 0)); */
- server_mutate_op(elem, op);
- grpc_call_next_op(exec_ctx, elem, op);
-}
-
-static void client_init_call_elem(grpc_exec_ctx *exec_ctx,
- grpc_call_element *elem,
- grpc_call_element_args *args) {
- call_data *d = elem->call_data;
- GPR_ASSERT(d != NULL);
- memset(d, 0, sizeof(*d));
- d->start_ts = gpr_now(GPR_CLOCK_REALTIME);
-}
-
-static void client_destroy_call_elem(grpc_exec_ctx *exec_ctx,
- grpc_call_element *elem) {
- call_data *d = elem->call_data;
- GPR_ASSERT(d != NULL);
- /* TODO(hongyu): record rpc client stats and census_rpc_end_op here */
-}
-
-static void server_init_call_elem(grpc_exec_ctx *exec_ctx,
- grpc_call_element *elem,
- grpc_call_element_args *args) {
- call_data *d = elem->call_data;
- GPR_ASSERT(d != NULL);
- memset(d, 0, sizeof(*d));
- d->start_ts = gpr_now(GPR_CLOCK_REALTIME);
- /* TODO(hongyu): call census_tracing_start_op here. */
- grpc_closure_init(&d->finish_recv, server_on_done_recv, elem);
-}
-
-static void server_destroy_call_elem(grpc_exec_ctx *exec_ctx,
- grpc_call_element *elem) {
- call_data *d = elem->call_data;
- GPR_ASSERT(d != NULL);
- /* TODO(hongyu): record rpc server stats and census_tracing_end_op here */
-}
-
-static void init_channel_elem(grpc_exec_ctx *exec_ctx,
- grpc_channel_element *elem,
- grpc_channel_element_args *args) {
- channel_data *chand = elem->channel_data;
- GPR_ASSERT(chand != NULL);
-}
-
-static void destroy_channel_elem(grpc_exec_ctx *exec_ctx,
- grpc_channel_element *elem) {
- channel_data *chand = elem->channel_data;
- GPR_ASSERT(chand != NULL);
-}
-
-const grpc_channel_filter grpc_client_census_filter = {
- client_start_transport_op,
- grpc_channel_next_op,
- sizeof(call_data),
- client_init_call_elem,
- grpc_call_stack_ignore_set_pollset,
- client_destroy_call_elem,
- sizeof(channel_data),
- init_channel_elem,
- destroy_channel_elem,
- grpc_call_next_get_peer,
- "census-client"};
-
-const grpc_channel_filter grpc_server_census_filter = {
- server_start_transport_op,
- grpc_channel_next_op,
- sizeof(call_data),
- server_init_call_elem,
- grpc_call_stack_ignore_set_pollset,
- server_destroy_call_elem,
- sizeof(channel_data),
- init_channel_elem,
- destroy_channel_elem,
- grpc_call_next_get_peer,
- "census-server"};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-06 15:04:44 +0000