mirror of https://github.com/grpc/grpc.git
Craig Tiller
8 years ago
commit
255dad3630
118 changed files with 2145 additions and 912 deletions
@ -1,15 +1 @@ |
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gRPC Fail Fast Semantics |
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======================== |
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|
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Fail fast requests allow terminating requests (with status UNAVAILABLE) prior |
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to the deadline of the request being met. |
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|
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gRPC implementations of fail fast can terminate requests whenever a channel is |
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in the TRANSIENT_FAILURE or SHUTDOWN states. If the channel is in any other |
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state (CONNECTING, READY, or IDLE) the request should not be terminated. |
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|
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Fail fast SHOULD be the default for gRPC implementations, with an option to |
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switch to non fail fast. |
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|
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The opposite of fail fast is 'ignore connectivity'. |
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|
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Moved to wait-for-ready.md |
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|
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@ -0,0 +1,14 @@ |
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gRPC Wait for Ready Semantics |
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============================= |
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|
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If an RPC is issued but the channel is in `TRANSIENT_FAILURE` or `SHUTDOWN` |
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states, the RPC is unable to be transmited promptly. By default, gRPC |
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implementations SHOULD fail such RPCs immediately. This is known as "fail fast," |
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but usage of the term is historical. RPCs SHOULD NOT fail as a result of the |
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channel being in other states (`CONNECTING`, `READY`, or `IDLE`). |
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|
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gRPC implementations MAY provide a per-RPC option to not fail RPCs as a result |
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of the channel being in `TRANSIENT_FAILURE` state. Instead, the implementation |
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queues the RPCs until the channel is `READY`. This is known as "wait for ready." |
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The RPCs SHOULD still fail before `READY` if there are unrelated reasons, such |
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as the channel is `SHUTDOWN` or the RPC's deadline is reached. |
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@ -0,0 +1,81 @@ |
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/*
|
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
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* 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 |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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/* Automatically generated nanopb constant definitions */ |
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/* Generated by nanopb-0.3.5-dev */ |
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|
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#include "src/core/ext/census/gen/trace_context.pb.h" |
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|
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#if PB_PROTO_HEADER_VERSION != 30 |
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#error Regenerate this file with the current version of nanopb generator. |
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#endif |
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|
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|
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|
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const pb_field_t google_trace_TraceId_fields[3] = { |
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PB_FIELD( 1, FIXED64 , OPTIONAL, STATIC , FIRST, google_trace_TraceId, hi, hi, 0), |
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PB_FIELD( 2, FIXED64 , OPTIONAL, STATIC , OTHER, google_trace_TraceId, lo, hi, 0), |
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PB_LAST_FIELD |
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}; |
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|
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const pb_field_t google_trace_TraceContext_fields[4] = { |
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PB_FIELD( 1, MESSAGE , OPTIONAL, STATIC , FIRST, google_trace_TraceContext, trace_id, trace_id, &google_trace_TraceId_fields), |
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PB_FIELD( 2, FIXED64 , OPTIONAL, STATIC , OTHER, google_trace_TraceContext, span_id, trace_id, 0), |
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PB_FIELD( 3, BOOL , OPTIONAL, STATIC , OTHER, google_trace_TraceContext, is_sampled, span_id, 0), |
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PB_LAST_FIELD |
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}; |
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|
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|
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/* Check that field information fits in pb_field_t */ |
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#if !defined(PB_FIELD_32BIT) |
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/* If you get an error here, it means that you need to define PB_FIELD_32BIT
|
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* compile-time option. You can do that in pb.h or on compiler command line. |
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*
|
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* The reason you need to do this is that some of your messages contain tag |
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* numbers or field sizes that are larger than what can fit in 8 or 16 bit |
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* field descriptors. |
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*/ |
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PB_STATIC_ASSERT((pb_membersize(google_trace_TraceContext, trace_id) < 65536), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_google_trace_TraceId_google_trace_TraceContext) |
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#endif |
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|
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#if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT) |
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/* If you get an error here, it means that you need to define PB_FIELD_16BIT
|
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* compile-time option. You can do that in pb.h or on compiler command line. |
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*
|
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* The reason you need to do this is that some of your messages contain tag |
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* numbers or field sizes that are larger than what can fit in the default |
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* 8 bit descriptors. |
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*/ |
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PB_STATIC_ASSERT((pb_membersize(google_trace_TraceContext, trace_id) < 256), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_google_trace_TraceId_google_trace_TraceContext) |
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#endif |
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|
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|
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@ -0,0 +1,99 @@ |
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/*
|
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
||||
* modification, are permitted provided that the following conditions are |
||||
* met: |
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* |
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* * 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. |
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* * 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. |
||||
* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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/* Automatically generated nanopb header */ |
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/* Generated by nanopb-0.3.5-dev */ |
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|
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#ifndef GRPC_CORE_EXT_CENSUS_GEN_TRACE_CONTEXT_PB_H |
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#define GRPC_CORE_EXT_CENSUS_GEN_TRACE_CONTEXT_PB_H |
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#include "third_party/nanopb/pb.h" |
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#if PB_PROTO_HEADER_VERSION != 30 |
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#error Regenerate this file with the current version of nanopb generator. |
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#endif |
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|
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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|
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/* Struct definitions */ |
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typedef struct _google_trace_TraceId { |
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bool has_hi; |
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uint64_t hi; |
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bool has_lo; |
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uint64_t lo; |
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} google_trace_TraceId; |
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|
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typedef struct _google_trace_TraceContext { |
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bool has_trace_id; |
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google_trace_TraceId trace_id; |
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bool has_span_id; |
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uint64_t span_id; |
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bool has_is_sampled; |
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bool is_sampled; |
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} google_trace_TraceContext; |
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|
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/* Default values for struct fields */ |
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|
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/* Initializer values for message structs */ |
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#define google_trace_TraceId_init_default {false, 0, false, 0} |
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#define google_trace_TraceContext_init_default {false, google_trace_TraceId_init_default, false, 0, false, 0} |
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#define google_trace_TraceId_init_zero {false, 0, false, 0} |
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#define google_trace_TraceContext_init_zero {false, google_trace_TraceId_init_zero, false, 0, false, 0} |
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|
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/* Field tags (for use in manual encoding/decoding) */ |
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#define google_trace_TraceId_hi_tag 1 |
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#define google_trace_TraceId_lo_tag 2 |
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#define google_trace_TraceContext_trace_id_tag 1 |
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#define google_trace_TraceContext_span_id_tag 2 |
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#define google_trace_TraceContext_is_sampled_tag 3 |
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|
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/* Struct field encoding specification for nanopb */ |
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extern const pb_field_t google_trace_TraceId_fields[3]; |
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extern const pb_field_t google_trace_TraceContext_fields[4]; |
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|
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/* Maximum encoded size of messages (where known) */ |
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#define google_trace_TraceId_size 18 |
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#define google_trace_TraceContext_size 31 |
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|
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/* Message IDs (where set with "msgid" option) */ |
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#ifdef PB_MSGID |
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|
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#define TRACE_CONTEXT_MESSAGES \ |
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|
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|
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#endif |
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|
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#ifdef __cplusplus |
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} /* extern "C" */ |
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#endif |
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|
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#endif |
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@ -1,296 +0,0 @@ |
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/*
|
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * 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. |
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* * 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. |
||||
* |
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* 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 |
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* 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 |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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|
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#include "src/core/ext/client_config/subchannel_call_holder.h" |
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|
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#include <grpc/support/alloc.h> |
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|
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#include "src/core/lib/profiling/timers.h" |
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|
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#define GET_CALL(holder) \ |
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((grpc_subchannel_call *)(gpr_atm_acq_load(&(holder)->subchannel_call))) |
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|
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#define CANCELLED_CALL ((grpc_subchannel_call *)1) |
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|
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static void subchannel_ready(grpc_exec_ctx *exec_ctx, void *holder, |
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grpc_error *error); |
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static void retry_ops(grpc_exec_ctx *exec_ctx, void *retry_ops_args, |
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grpc_error *error); |
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|
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static void add_waiting_locked(grpc_subchannel_call_holder *holder, |
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grpc_transport_stream_op *op); |
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static void fail_locked(grpc_exec_ctx *exec_ctx, |
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grpc_subchannel_call_holder *holder, grpc_error *error); |
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static void retry_waiting_locked(grpc_exec_ctx *exec_ctx, |
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grpc_subchannel_call_holder *holder); |
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|
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void grpc_subchannel_call_holder_init( |
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grpc_subchannel_call_holder *holder, |
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grpc_subchannel_call_holder_pick_subchannel pick_subchannel, |
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void *pick_subchannel_arg, grpc_call_stack *owning_call) { |
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gpr_atm_rel_store(&holder->subchannel_call, 0); |
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holder->pick_subchannel = pick_subchannel; |
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holder->pick_subchannel_arg = pick_subchannel_arg; |
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gpr_mu_init(&holder->mu); |
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holder->connected_subchannel = NULL; |
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holder->waiting_ops = NULL; |
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holder->waiting_ops_count = 0; |
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holder->waiting_ops_capacity = 0; |
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holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING; |
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holder->owning_call = owning_call; |
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holder->pollent = NULL; |
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} |
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|
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void grpc_subchannel_call_holder_destroy(grpc_exec_ctx *exec_ctx, |
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grpc_subchannel_call_holder *holder) { |
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grpc_subchannel_call *call = GET_CALL(holder); |
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if (call != NULL && call != CANCELLED_CALL) { |
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GRPC_SUBCHANNEL_CALL_UNREF(exec_ctx, call, "holder"); |
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} |
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GPR_ASSERT(holder->creation_phase == |
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GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING); |
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gpr_mu_destroy(&holder->mu); |
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GPR_ASSERT(holder->waiting_ops_count == 0); |
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gpr_free(holder->waiting_ops); |
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} |
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|
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// The logic here is fairly complicated, due to (a) the fact that we
|
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// need to handle the case where we receive the send op before the
|
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// initial metadata op, and (b) the need for efficiency, especially in
|
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// the streaming case.
|
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// TODO(ctiller): Explain this more thoroughly.
|
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void grpc_subchannel_call_holder_perform_op(grpc_exec_ctx *exec_ctx, |
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grpc_subchannel_call_holder *holder, |
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grpc_transport_stream_op *op) { |
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/* try to (atomically) get the call */ |
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grpc_subchannel_call *call = GET_CALL(holder); |
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GPR_TIMER_BEGIN("grpc_subchannel_call_holder_perform_op", 0); |
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if (call == CANCELLED_CALL) { |
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grpc_transport_stream_op_finish_with_failure(exec_ctx, op, |
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GRPC_ERROR_CANCELLED); |
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GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); |
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return; |
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} |
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if (call != NULL) { |
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grpc_subchannel_call_process_op(exec_ctx, call, op); |
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GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); |
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return; |
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} |
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/* we failed; lock and figure out what to do */ |
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gpr_mu_lock(&holder->mu); |
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retry: |
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/* need to recheck that another thread hasn't set the call */ |
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call = GET_CALL(holder); |
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if (call == CANCELLED_CALL) { |
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gpr_mu_unlock(&holder->mu); |
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grpc_transport_stream_op_finish_with_failure(exec_ctx, op, |
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GRPC_ERROR_CANCELLED); |
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GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); |
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return; |
||||
} |
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if (call != NULL) { |
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gpr_mu_unlock(&holder->mu); |
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grpc_subchannel_call_process_op(exec_ctx, call, op); |
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GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); |
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return; |
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} |
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/* if this is a cancellation, then we can raise our cancelled flag */ |
||||
if (op->cancel_error != GRPC_ERROR_NONE) { |
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if (!gpr_atm_rel_cas(&holder->subchannel_call, 0, |
||||
(gpr_atm)(uintptr_t)CANCELLED_CALL)) { |
||||
goto retry; |
||||
} else { |
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switch (holder->creation_phase) { |
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case GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING: |
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fail_locked(exec_ctx, holder, GRPC_ERROR_REF(op->cancel_error)); |
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break; |
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case GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL: |
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holder->pick_subchannel(exec_ctx, holder->pick_subchannel_arg, NULL, |
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0, &holder->connected_subchannel, NULL); |
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break; |
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} |
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gpr_mu_unlock(&holder->mu); |
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grpc_transport_stream_op_finish_with_failure(exec_ctx, op, |
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GRPC_ERROR_CANCELLED); |
||||
GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); |
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return; |
||||
} |
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} |
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/* if we don't have a subchannel, try to get one */ |
||||
if (holder->creation_phase == GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING && |
||||
holder->connected_subchannel == NULL && |
||||
op->send_initial_metadata != NULL) { |
||||
holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL; |
||||
grpc_closure_init(&holder->next_step, subchannel_ready, holder); |
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GRPC_CALL_STACK_REF(holder->owning_call, "pick_subchannel"); |
||||
if (holder->pick_subchannel( |
||||
exec_ctx, holder->pick_subchannel_arg, op->send_initial_metadata, |
||||
op->send_initial_metadata_flags, &holder->connected_subchannel, |
||||
&holder->next_step)) { |
||||
holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING; |
||||
GRPC_CALL_STACK_UNREF(exec_ctx, holder->owning_call, "pick_subchannel"); |
||||
} |
||||
} |
||||
/* if we've got a subchannel, then let's ask it to create a call */ |
||||
if (holder->creation_phase == GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING && |
||||
holder->connected_subchannel != NULL) { |
||||
grpc_subchannel_call *subchannel_call = NULL; |
||||
grpc_error *error = grpc_connected_subchannel_create_call( |
||||
exec_ctx, holder->connected_subchannel, holder->pollent, |
||||
&subchannel_call); |
||||
if (error != GRPC_ERROR_NONE) { |
||||
subchannel_call = CANCELLED_CALL; |
||||
fail_locked(exec_ctx, holder, GRPC_ERROR_REF(error)); |
||||
grpc_transport_stream_op_finish_with_failure(exec_ctx, op, error); |
||||
} |
||||
gpr_atm_rel_store(&holder->subchannel_call, |
||||
(gpr_atm)(uintptr_t)subchannel_call); |
||||
retry_waiting_locked(exec_ctx, holder); |
||||
goto retry; |
||||
} |
||||
/* nothing to be done but wait */ |
||||
add_waiting_locked(holder, op); |
||||
gpr_mu_unlock(&holder->mu); |
||||
GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); |
||||
} |
||||
|
||||
static void subchannel_ready(grpc_exec_ctx *exec_ctx, void *arg, |
||||
grpc_error *error) { |
||||
grpc_subchannel_call_holder *holder = arg; |
||||
gpr_mu_lock(&holder->mu); |
||||
GPR_ASSERT(holder->creation_phase == |
||||
GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL); |
||||
holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING; |
||||
if (holder->connected_subchannel == NULL) { |
||||
gpr_atm_no_barrier_store(&holder->subchannel_call, 1); |
||||
fail_locked(exec_ctx, holder, |
||||
GRPC_ERROR_CREATE_REFERENCING("Failed to create subchannel", |
||||
&error, 1)); |
||||
} else if (1 == gpr_atm_acq_load(&holder->subchannel_call)) { |
||||
/* already cancelled before subchannel became ready */ |
||||
fail_locked(exec_ctx, holder, |
||||
GRPC_ERROR_CREATE_REFERENCING( |
||||
"Cancelled before creating subchannel", &error, 1)); |
||||
} else { |
||||
grpc_subchannel_call *subchannel_call = NULL; |
||||
grpc_error *new_error = grpc_connected_subchannel_create_call( |
||||
exec_ctx, holder->connected_subchannel, holder->pollent, |
||||
&subchannel_call); |
||||
if (new_error != GRPC_ERROR_NONE) { |
||||
new_error = grpc_error_add_child(new_error, error); |
||||
subchannel_call = CANCELLED_CALL; |
||||
fail_locked(exec_ctx, holder, new_error); |
||||
} |
||||
gpr_atm_rel_store(&holder->subchannel_call, |
||||
(gpr_atm)(uintptr_t)subchannel_call); |
||||
retry_waiting_locked(exec_ctx, holder); |
||||
} |
||||
gpr_mu_unlock(&holder->mu); |
||||
GRPC_CALL_STACK_UNREF(exec_ctx, holder->owning_call, "pick_subchannel"); |
||||
} |
||||
|
||||
typedef struct { |
||||
grpc_transport_stream_op **ops; |
||||
size_t nops; |
||||
grpc_subchannel_call *call; |
||||
} retry_ops_args; |
||||
|
||||
static void retry_waiting_locked(grpc_exec_ctx *exec_ctx, |
||||
grpc_subchannel_call_holder *holder) { |
||||
if (holder->waiting_ops_count == 0) { |
||||
return; |
||||
} |
||||
|
||||
retry_ops_args *a = gpr_malloc(sizeof(*a)); |
||||
a->ops = holder->waiting_ops; |
||||
a->nops = holder->waiting_ops_count; |
||||
a->call = GET_CALL(holder); |
||||
if (a->call == CANCELLED_CALL) { |
||||
gpr_free(a); |
||||
fail_locked(exec_ctx, holder, GRPC_ERROR_CANCELLED); |
||||
return; |
||||
} |
||||
holder->waiting_ops = NULL; |
||||
holder->waiting_ops_count = 0; |
||||
holder->waiting_ops_capacity = 0; |
||||
GRPC_SUBCHANNEL_CALL_REF(a->call, "retry_ops"); |
||||
grpc_exec_ctx_sched(exec_ctx, grpc_closure_create(retry_ops, a), |
||||
GRPC_ERROR_NONE, NULL); |
||||
} |
||||
|
||||
static void retry_ops(grpc_exec_ctx *exec_ctx, void *args, grpc_error *error) { |
||||
retry_ops_args *a = args; |
||||
size_t i; |
||||
for (i = 0; i < a->nops; i++) { |
||||
grpc_subchannel_call_process_op(exec_ctx, a->call, a->ops[i]); |
||||
} |
||||
GRPC_SUBCHANNEL_CALL_UNREF(exec_ctx, a->call, "retry_ops"); |
||||
gpr_free(a->ops); |
||||
gpr_free(a); |
||||
} |
||||
|
||||
static void add_waiting_locked(grpc_subchannel_call_holder *holder, |
||||
grpc_transport_stream_op *op) { |
||||
GPR_TIMER_BEGIN("add_waiting_locked", 0); |
||||
if (holder->waiting_ops_count == holder->waiting_ops_capacity) { |
||||
holder->waiting_ops_capacity = GPR_MAX(3, 2 * holder->waiting_ops_capacity); |
||||
holder->waiting_ops = |
||||
gpr_realloc(holder->waiting_ops, holder->waiting_ops_capacity * |
||||
sizeof(*holder->waiting_ops)); |
||||
} |
||||
holder->waiting_ops[holder->waiting_ops_count++] = op; |
||||
GPR_TIMER_END("add_waiting_locked", 0); |
||||
} |
||||
|
||||
static void fail_locked(grpc_exec_ctx *exec_ctx, |
||||
grpc_subchannel_call_holder *holder, |
||||
grpc_error *error) { |
||||
size_t i; |
||||
for (i = 0; i < holder->waiting_ops_count; i++) { |
||||
grpc_transport_stream_op_finish_with_failure( |
||||
exec_ctx, holder->waiting_ops[i], GRPC_ERROR_REF(error)); |
||||
} |
||||
holder->waiting_ops_count = 0; |
||||
GRPC_ERROR_UNREF(error); |
||||
} |
||||
|
||||
char *grpc_subchannel_call_holder_get_peer( |
||||
grpc_exec_ctx *exec_ctx, grpc_subchannel_call_holder *holder) { |
||||
grpc_subchannel_call *subchannel_call = GET_CALL(holder); |
||||
|
||||
if (subchannel_call == NULL || subchannel_call == CANCELLED_CALL) { |
||||
return NULL; |
||||
} else { |
||||
return grpc_subchannel_call_get_peer(exec_ctx, subchannel_call); |
||||
} |
||||
} |
||||
@ -1,99 +0,0 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015, 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. |
||||
* |
||||
*/ |
||||
|
||||
#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_CALL_HOLDER_H |
||||
#define GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_CALL_HOLDER_H |
||||
|
||||
#include "src/core/ext/client_config/subchannel.h" |
||||
#include "src/core/lib/iomgr/polling_entity.h" |
||||
|
||||
/** Pick a subchannel for grpc_subchannel_call_holder;
|
||||
Return 1 if subchannel is available immediately (in which case on_ready |
||||
should not be called), or 0 otherwise (in which case on_ready should be |
||||
called when the subchannel is available) */ |
||||
typedef int (*grpc_subchannel_call_holder_pick_subchannel)( |
||||
grpc_exec_ctx *exec_ctx, void *arg, grpc_metadata_batch *initial_metadata, |
||||
uint32_t initial_metadata_flags, |
||||
grpc_connected_subchannel **connected_subchannel, grpc_closure *on_ready); |
||||
|
||||
typedef enum { |
||||
GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING, |
||||
GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL |
||||
} grpc_subchannel_call_holder_creation_phase; |
||||
|
||||
/** Wrapper for holding a pointer to grpc_subchannel_call, and the
|
||||
associated machinery to create such a pointer. |
||||
Handles queueing of stream ops until a call object is ready, waiting |
||||
for initial metadata before trying to create a call object, |
||||
and handling cancellation gracefully. |
||||
|
||||
The channel filter uses this as their call_data. */ |
||||
typedef struct grpc_subchannel_call_holder { |
||||
/** either 0 for no call, 1 for cancelled, or a pointer to a
|
||||
grpc_subchannel_call */ |
||||
gpr_atm subchannel_call; |
||||
/** Helper function to choose the subchannel on which to create
|
||||
the call object. Channel filter delegates to the load |
||||
balancing policy (once it's ready). */ |
||||
grpc_subchannel_call_holder_pick_subchannel pick_subchannel; |
||||
void *pick_subchannel_arg; |
||||
|
||||
gpr_mu mu; |
||||
|
||||
grpc_subchannel_call_holder_creation_phase creation_phase; |
||||
grpc_connected_subchannel *connected_subchannel; |
||||
grpc_polling_entity *pollent; |
||||
|
||||
grpc_transport_stream_op **waiting_ops; |
||||
size_t waiting_ops_count; |
||||
size_t waiting_ops_capacity; |
||||
|
||||
grpc_closure next_step; |
||||
|
||||
grpc_call_stack *owning_call; |
||||
} grpc_subchannel_call_holder; |
||||
|
||||
void grpc_subchannel_call_holder_init( |
||||
grpc_subchannel_call_holder *holder, |
||||
grpc_subchannel_call_holder_pick_subchannel pick_subchannel, |
||||
void *pick_subchannel_arg, grpc_call_stack *owning_call); |
||||
void grpc_subchannel_call_holder_destroy(grpc_exec_ctx *exec_ctx, |
||||
grpc_subchannel_call_holder *holder); |
||||
|
||||
void grpc_subchannel_call_holder_perform_op(grpc_exec_ctx *exec_ctx, |
||||
grpc_subchannel_call_holder *holder, |
||||
grpc_transport_stream_op *op); |
||||
char *grpc_subchannel_call_holder_get_peer(grpc_exec_ctx *exec_ctx, |
||||
grpc_subchannel_call_holder *holder); |
||||
|
||||
#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_CALL_HOLDER_H */ |
||||
@ -0,0 +1,48 @@ |
||||
// 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. |
||||
|
||||
syntax = "proto3"; |
||||
|
||||
package google.trace; |
||||
|
||||
// A TraceId uniquely represents a single Trace. It is a 128-bit nonce. |
||||
message TraceId { |
||||
fixed64 hi = 1; |
||||
fixed64 lo = 2; |
||||
} |
||||
|
||||
// Tracing information that is propagated with RPC's. |
||||
message TraceContext { |
||||
// Trace identifer. Must be present. |
||||
TraceId trace_id = 1; |
||||
// ID of parent (client) span. Must be present. |
||||
fixed64 span_id = 2; |
||||
// true if this trace is sampled. |
||||
bool is_sampled = 3; |
||||
} |
||||
@ -0,0 +1,293 @@ |
||||
/*
|
||||
* |
||||
* 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. |
||||
* |
||||
*/ |
||||
|
||||
#include "test/core/end2end/end2end_tests.h" |
||||
|
||||
#include <stdio.h> |
||||
#include <string.h> |
||||
|
||||
#include <grpc/byte_buffer.h> |
||||
#include <grpc/grpc.h> |
||||
#include <grpc/support/alloc.h> |
||||
#include <grpc/support/log.h> |
||||
#include <grpc/support/string_util.h> |
||||
#include <grpc/support/time.h> |
||||
#include <grpc/support/useful.h> |
||||
#include "src/core/lib/iomgr/error.h" |
||||
#include "src/core/lib/support/string.h" |
||||
#include "test/core/end2end/cq_verifier.h" |
||||
|
||||
enum { TIMEOUT = 200000 }; |
||||
|
||||
static void *tag(intptr_t t) { return (void *)t; } |
||||
|
||||
extern void gpr_default_log(gpr_log_func_args *args); |
||||
|
||||
static void test_no_log(gpr_log_func_args *args) { |
||||
char *message = NULL; |
||||
gpr_asprintf(&message, "Unwanted log: %s", args->message); |
||||
args->message = message; |
||||
gpr_default_log(args); |
||||
gpr_free(message); |
||||
abort(); |
||||
} |
||||
|
||||
static void test_no_error_log(gpr_log_func_args *args) { |
||||
if (args->severity == GPR_LOG_SEVERITY_ERROR) { |
||||
test_no_log(args); |
||||
} |
||||
} |
||||
|
||||
static grpc_end2end_test_fixture begin_test(grpc_end2end_test_config config, |
||||
const char *test_name, |
||||
grpc_channel_args *client_args, |
||||
grpc_channel_args *server_args) { |
||||
grpc_end2end_test_fixture f; |
||||
gpr_log(GPR_INFO, "%s/%s", test_name, config.name); |
||||
f = config.create_fixture(client_args, server_args); |
||||
config.init_server(&f, server_args); |
||||
config.init_client(&f, client_args); |
||||
return f; |
||||
} |
||||
|
||||
static gpr_timespec n_seconds_time(int n) { |
||||
return GRPC_TIMEOUT_SECONDS_TO_DEADLINE(n); |
||||
} |
||||
|
||||
static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); } |
||||
|
||||
static void drain_cq(grpc_completion_queue *cq) { |
||||
grpc_event ev; |
||||
do { |
||||
ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL); |
||||
} while (ev.type != GRPC_QUEUE_SHUTDOWN); |
||||
} |
||||
|
||||
static void shutdown_server(grpc_end2end_test_fixture *f) { |
||||
if (!f->server) return; |
||||
grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000)); |
||||
GPR_ASSERT(grpc_completion_queue_pluck( |
||||
f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL) |
||||
.type == GRPC_OP_COMPLETE); |
||||
grpc_server_destroy(f->server); |
||||
f->server = NULL; |
||||
} |
||||
|
||||
static void shutdown_client(grpc_end2end_test_fixture *f) { |
||||
if (!f->client) return; |
||||
grpc_channel_destroy(f->client); |
||||
f->client = NULL; |
||||
} |
||||
|
||||
static void end_test(grpc_end2end_test_fixture *f) { |
||||
shutdown_server(f); |
||||
shutdown_client(f); |
||||
|
||||
grpc_completion_queue_shutdown(f->cq); |
||||
drain_cq(f->cq); |
||||
grpc_completion_queue_destroy(f->cq); |
||||
} |
||||
|
||||
static void simple_request_body(grpc_end2end_test_fixture f) { |
||||
grpc_call *c; |
||||
grpc_call *s; |
||||
gpr_timespec deadline = five_seconds_time(); |
||||
cq_verifier *cqv = cq_verifier_create(f.cq); |
||||
grpc_op ops[6]; |
||||
grpc_op *op; |
||||
grpc_metadata_array initial_metadata_recv; |
||||
grpc_metadata_array trailing_metadata_recv; |
||||
grpc_metadata_array request_metadata_recv; |
||||
grpc_call_details call_details; |
||||
grpc_status_code status; |
||||
grpc_call_error error; |
||||
char *details = NULL; |
||||
size_t details_capacity = 0; |
||||
int was_cancelled = 2; |
||||
char *peer; |
||||
|
||||
c = grpc_channel_create_call(f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq, |
||||
"/foo", "foo.test.google.fr:1234", deadline, |
||||
NULL); |
||||
GPR_ASSERT(c); |
||||
|
||||
peer = grpc_call_get_peer(c); |
||||
GPR_ASSERT(peer != NULL); |
||||
gpr_free(peer); |
||||
|
||||
grpc_metadata_array_init(&initial_metadata_recv); |
||||
grpc_metadata_array_init(&trailing_metadata_recv); |
||||
grpc_metadata_array_init(&request_metadata_recv); |
||||
grpc_call_details_init(&call_details); |
||||
|
||||
memset(ops, 0, sizeof(ops)); |
||||
op = ops; |
||||
op->op = GRPC_OP_SEND_INITIAL_METADATA; |
||||
op->data.send_initial_metadata.count = 0; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
op->op = GRPC_OP_RECV_INITIAL_METADATA; |
||||
op->data.recv_initial_metadata = &initial_metadata_recv; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
op->op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
||||
op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv; |
||||
op->data.recv_status_on_client.status = &status; |
||||
op->data.recv_status_on_client.status_details = &details; |
||||
op->data.recv_status_on_client.status_details_capacity = &details_capacity; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL); |
||||
GPR_ASSERT(GRPC_CALL_OK == error); |
||||
|
||||
error = |
||||
grpc_server_request_call(f.server, &s, &call_details, |
||||
&request_metadata_recv, f.cq, f.cq, tag(101)); |
||||
GPR_ASSERT(GRPC_CALL_OK == error); |
||||
CQ_EXPECT_COMPLETION(cqv, tag(101), 1); |
||||
cq_verify(cqv); |
||||
|
||||
peer = grpc_call_get_peer(s); |
||||
GPR_ASSERT(peer != NULL); |
||||
gpr_free(peer); |
||||
peer = grpc_call_get_peer(c); |
||||
GPR_ASSERT(peer != NULL); |
||||
gpr_free(peer); |
||||
|
||||
memset(ops, 0, sizeof(ops)); |
||||
op = ops; |
||||
op->op = GRPC_OP_SEND_INITIAL_METADATA; |
||||
op->data.send_initial_metadata.count = 0; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
op->op = GRPC_OP_SEND_STATUS_FROM_SERVER; |
||||
op->data.send_status_from_server.trailing_metadata_count = 0; |
||||
op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED; |
||||
op->data.send_status_from_server.status_details = "xyz"; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
op->op = GRPC_OP_RECV_CLOSE_ON_SERVER; |
||||
op->data.recv_close_on_server.cancelled = &was_cancelled; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(102), NULL); |
||||
GPR_ASSERT(GRPC_CALL_OK == error); |
||||
|
||||
CQ_EXPECT_COMPLETION(cqv, tag(102), 1); |
||||
CQ_EXPECT_COMPLETION(cqv, tag(1), 1); |
||||
cq_verify(cqv); |
||||
|
||||
GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED); |
||||
GPR_ASSERT(0 == strcmp(details, "xyz")); |
||||
GPR_ASSERT(0 == strcmp(call_details.method, "/foo")); |
||||
GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr:1234")); |
||||
GPR_ASSERT(0 == call_details.flags); |
||||
GPR_ASSERT(was_cancelled == 1); |
||||
|
||||
gpr_free(details); |
||||
grpc_metadata_array_destroy(&initial_metadata_recv); |
||||
grpc_metadata_array_destroy(&trailing_metadata_recv); |
||||
grpc_metadata_array_destroy(&request_metadata_recv); |
||||
grpc_call_details_destroy(&call_details); |
||||
|
||||
grpc_call_destroy(c); |
||||
grpc_call_destroy(s); |
||||
|
||||
cq_verifier_destroy(cqv); |
||||
} |
||||
|
||||
static void test_invoke_simple_request(grpc_end2end_test_config config) { |
||||
grpc_end2end_test_fixture f; |
||||
|
||||
f = begin_test(config, "test_invoke_simple_request_with_no_error_logging", |
||||
NULL, NULL); |
||||
simple_request_body(f); |
||||
end_test(&f); |
||||
config.tear_down_data(&f); |
||||
} |
||||
|
||||
static void test_invoke_10_simple_requests(grpc_end2end_test_config config) { |
||||
int i; |
||||
grpc_end2end_test_fixture f = |
||||
begin_test(config, "test_invoke_10_simple_requests_with_no_error_logging", |
||||
NULL, NULL); |
||||
for (i = 0; i < 10; i++) { |
||||
simple_request_body(f); |
||||
gpr_log(GPR_INFO, "Passed simple request %d", i); |
||||
} |
||||
simple_request_body(f); |
||||
end_test(&f); |
||||
config.tear_down_data(&f); |
||||
} |
||||
|
||||
static void test_no_error_logging_in_entire_process( |
||||
grpc_end2end_test_config config) { |
||||
int i; |
||||
gpr_set_log_function(test_no_error_log); |
||||
for (i = 0; i < 10; i++) { |
||||
test_invoke_simple_request(config); |
||||
} |
||||
test_invoke_10_simple_requests(config); |
||||
gpr_set_log_function(gpr_default_log); |
||||
} |
||||
|
||||
static void test_no_logging_in_one_request(grpc_end2end_test_config config) { |
||||
int i; |
||||
grpc_end2end_test_fixture f = |
||||
begin_test(config, "test_no_logging_in_last_request", NULL, NULL); |
||||
for (i = 0; i < 10; i++) { |
||||
simple_request_body(f); |
||||
} |
||||
gpr_set_log_function(test_no_log); |
||||
simple_request_body(f); |
||||
gpr_set_log_function(gpr_default_log); |
||||
end_test(&f); |
||||
config.tear_down_data(&f); |
||||
} |
||||
|
||||
void no_logging(grpc_end2end_test_config config) { |
||||
test_no_logging_in_one_request(config); |
||||
test_no_error_logging_in_entire_process(config); |
||||
} |
||||
|
||||
void no_logging_pre_init(void) {} |
||||
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Reference in new issue