diff options
Diffstat (limited to 'src/core/ext/lb_policy')
| -rw-r--r-- | src/core/ext/lb_policy/grpclb/load_balancer_api.c | 14 | ||||
| -rw-r--r-- | src/core/ext/lb_policy/grpclb/load_balancer_api.h | 10 | ||||
| -rw-r--r-- | src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h | 182 | ||||
| -rw-r--r-- | src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c (renamed from src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c) | 59 | ||||
| -rw-r--r-- | src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h | 178 | ||||
| -rw-r--r-- | src/core/ext/lb_policy/pick_first/pick_first.c | 110 | ||||
| -rw-r--r-- | src/core/ext/lb_policy/round_robin/round_robin.c | 127 |
7 files changed, 368 insertions, 312 deletions
diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.c b/src/core/ext/lb_policy/grpclb/load_balancer_api.c index 459d6d9954..59b89997dd 100644 --- a/src/core/ext/lb_policy/grpclb/load_balancer_api.c +++ b/src/core/ext/lb_policy/grpclb/load_balancer_api.c @@ -50,7 +50,7 @@ static bool decode_serverlist(pb_istream_t *stream, const pb_field_t *field, decode_serverlist_arg *dec_arg = *arg; if (dec_arg->first_pass != 0) { /* first pass */ grpc_grpclb_server server; - if (!pb_decode(stream, grpc_lb_v0_Server_fields, &server)) { + if (!pb_decode(stream, grpc_lb_v1_Server_fields, &server)) { return false; } dec_arg->num_servers++; @@ -61,7 +61,7 @@ static bool decode_serverlist(pb_istream_t *stream, const pb_field_t *field, dec_arg->servers = gpr_malloc(sizeof(grpc_grpclb_server *) * dec_arg->num_servers); } - if (!pb_decode(stream, grpc_lb_v0_Server_fields, server)) { + if (!pb_decode(stream, grpc_lb_v1_Server_fields, server)) { return false; } dec_arg->servers[dec_arg->i++] = server; @@ -87,13 +87,13 @@ gpr_slice grpc_grpclb_request_encode(const grpc_grpclb_request *request) { pb_ostream_t outputstream; gpr_slice slice; memset(&sizestream, 0, sizeof(pb_ostream_t)); - pb_encode(&sizestream, grpc_lb_v0_LoadBalanceRequest_fields, request); + pb_encode(&sizestream, grpc_lb_v1_LoadBalanceRequest_fields, request); encoded_length = sizestream.bytes_written; slice = gpr_slice_malloc(encoded_length); outputstream = pb_ostream_from_buffer(GPR_SLICE_START_PTR(slice), encoded_length); - GPR_ASSERT(pb_encode(&outputstream, grpc_lb_v0_LoadBalanceRequest_fields, + GPR_ASSERT(pb_encode(&outputstream, grpc_lb_v1_LoadBalanceRequest_fields, request) != 0); return slice; } @@ -109,7 +109,7 @@ grpc_grpclb_response *grpc_grpclb_response_parse(gpr_slice encoded_response) { GPR_SLICE_LENGTH(encoded_response)); grpc_grpclb_response *res = gpr_malloc(sizeof(grpc_grpclb_response)); memset(res, 0, sizeof(*res)); - status = pb_decode(&stream, grpc_lb_v0_LoadBalanceResponse_fields, res); + status = pb_decode(&stream, grpc_lb_v1_LoadBalanceResponse_fields, res); if (!status) { grpc_grpclb_response_destroy(res); return NULL; @@ -132,7 +132,7 @@ grpc_grpclb_serverlist *grpc_grpclb_response_parse_serverlist( res->server_list.servers.funcs.decode = decode_serverlist; res->server_list.servers.arg = &arg; arg.first_pass = 1; - status = pb_decode(&stream, grpc_lb_v0_LoadBalanceResponse_fields, res); + status = pb_decode(&stream, grpc_lb_v1_LoadBalanceResponse_fields, res); if (!status) { grpc_grpclb_response_destroy(res); return NULL; @@ -140,7 +140,7 @@ grpc_grpclb_serverlist *grpc_grpclb_response_parse_serverlist( arg.first_pass = 0; status = - pb_decode(&stream_at_start, grpc_lb_v0_LoadBalanceResponse_fields, res); + pb_decode(&stream_at_start, grpc_lb_v1_LoadBalanceResponse_fields, res); if (!status) { grpc_grpclb_response_destroy(res); return NULL; diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.h b/src/core/ext/lb_policy/grpclb/load_balancer_api.h index 968f7d278a..71b5616d0c 100644 --- a/src/core/ext/lb_policy/grpclb/load_balancer_api.h +++ b/src/core/ext/lb_policy/grpclb/load_balancer_api.h @@ -37,7 +37,7 @@ #include <grpc/support/slice_buffer.h> #include "src/core/ext/client_config/lb_policy_factory.h" -#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h" +#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h" #ifdef __cplusplus extern "C" { @@ -45,10 +45,10 @@ extern "C" { #define GRPC_GRPCLB_SERVICE_NAME_MAX_LENGTH 128 -typedef grpc_lb_v0_LoadBalanceRequest grpc_grpclb_request; -typedef grpc_lb_v0_LoadBalanceResponse grpc_grpclb_response; -typedef grpc_lb_v0_Server grpc_grpclb_server; -typedef grpc_lb_v0_Duration grpc_grpclb_duration; +typedef grpc_lb_v1_LoadBalanceRequest grpc_grpclb_request; +typedef grpc_lb_v1_LoadBalanceResponse grpc_grpclb_response; +typedef grpc_lb_v1_Server grpc_grpclb_server; +typedef grpc_lb_v1_Duration grpc_grpclb_duration; typedef struct grpc_grpclb_serverlist { grpc_grpclb_server **servers; size_t num_servers; diff --git a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h b/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h deleted file mode 100644 index 3599f881bb..0000000000 --- a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h +++ /dev/null @@ -1,182 +0,0 @@ -/* - * - * 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_LOAD_BALANCER_PB_H_INCLUDED -#define PB_LOAD_BALANCER_PB_H_INCLUDED -#include "third_party/nanopb/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 - -/* Struct definitions */ -typedef struct _grpc_lb_v0_ClientStats { - bool has_total_requests; - int64_t total_requests; - bool has_client_rpc_errors; - int64_t client_rpc_errors; - bool has_dropped_requests; - int64_t dropped_requests; -} grpc_lb_v0_ClientStats; - -typedef struct _grpc_lb_v0_Duration { - bool has_seconds; - int64_t seconds; - bool has_nanos; - int32_t nanos; -} grpc_lb_v0_Duration; - -typedef struct _grpc_lb_v0_InitialLoadBalanceRequest { - bool has_name; - char name[128]; -} grpc_lb_v0_InitialLoadBalanceRequest; - -typedef PB_BYTES_ARRAY_T(64) grpc_lb_v0_Server_load_balance_token_t; -typedef struct _grpc_lb_v0_Server { - bool has_ip_address; - char ip_address[46]; - bool has_port; - int32_t port; - bool has_load_balance_token; - grpc_lb_v0_Server_load_balance_token_t load_balance_token; - bool has_drop_request; - bool drop_request; -} grpc_lb_v0_Server; - -typedef struct _grpc_lb_v0_InitialLoadBalanceResponse { - bool has_client_config; - char client_config[64]; - bool has_load_balancer_delegate; - char load_balancer_delegate[64]; - bool has_client_stats_report_interval; - grpc_lb_v0_Duration client_stats_report_interval; -} grpc_lb_v0_InitialLoadBalanceResponse; - -typedef struct _grpc_lb_v0_LoadBalanceRequest { - bool has_initial_request; - grpc_lb_v0_InitialLoadBalanceRequest initial_request; - bool has_client_stats; - grpc_lb_v0_ClientStats client_stats; -} grpc_lb_v0_LoadBalanceRequest; - -typedef struct _grpc_lb_v0_ServerList { - pb_callback_t servers; - bool has_expiration_interval; - grpc_lb_v0_Duration expiration_interval; -} grpc_lb_v0_ServerList; - -typedef struct _grpc_lb_v0_LoadBalanceResponse { - bool has_initial_response; - grpc_lb_v0_InitialLoadBalanceResponse initial_response; - bool has_server_list; - grpc_lb_v0_ServerList server_list; -} grpc_lb_v0_LoadBalanceResponse; - -/* Default values for struct fields */ - -/* Initializer values for message structs */ -#define grpc_lb_v0_Duration_init_default {false, 0, false, 0} -#define grpc_lb_v0_LoadBalanceRequest_init_default {false, grpc_lb_v0_InitialLoadBalanceRequest_init_default, false, grpc_lb_v0_ClientStats_init_default} -#define grpc_lb_v0_InitialLoadBalanceRequest_init_default {false, ""} -#define grpc_lb_v0_ClientStats_init_default {false, 0, false, 0, false, 0} -#define grpc_lb_v0_LoadBalanceResponse_init_default {false, grpc_lb_v0_InitialLoadBalanceResponse_init_default, false, grpc_lb_v0_ServerList_init_default} -#define grpc_lb_v0_InitialLoadBalanceResponse_init_default {false, "", false, "", false, grpc_lb_v0_Duration_init_default} -#define grpc_lb_v0_ServerList_init_default {{{NULL}, NULL}, false, grpc_lb_v0_Duration_init_default} -#define grpc_lb_v0_Server_init_default {false, "", false, 0, false, {0, {0}}, false, 0} -#define grpc_lb_v0_Duration_init_zero {false, 0, false, 0} -#define grpc_lb_v0_LoadBalanceRequest_init_zero {false, grpc_lb_v0_InitialLoadBalanceRequest_init_zero, false, grpc_lb_v0_ClientStats_init_zero} -#define grpc_lb_v0_InitialLoadBalanceRequest_init_zero {false, ""} -#define grpc_lb_v0_ClientStats_init_zero {false, 0, false, 0, false, 0} -#define grpc_lb_v0_LoadBalanceResponse_init_zero {false, grpc_lb_v0_InitialLoadBalanceResponse_init_zero, false, grpc_lb_v0_ServerList_init_zero} -#define grpc_lb_v0_InitialLoadBalanceResponse_init_zero {false, "", false, "", false, grpc_lb_v0_Duration_init_zero} -#define grpc_lb_v0_ServerList_init_zero {{{NULL}, NULL}, false, grpc_lb_v0_Duration_init_zero} -#define grpc_lb_v0_Server_init_zero {false, "", false, 0, false, {0, {0}}, false, 0} - -/* Field tags (for use in manual encoding/decoding) */ -#define grpc_lb_v0_ClientStats_total_requests_tag 1 -#define grpc_lb_v0_ClientStats_client_rpc_errors_tag 2 -#define grpc_lb_v0_ClientStats_dropped_requests_tag 3 -#define grpc_lb_v0_Duration_seconds_tag 1 -#define grpc_lb_v0_Duration_nanos_tag 2 -#define grpc_lb_v0_InitialLoadBalanceRequest_name_tag 1 -#define grpc_lb_v0_Server_ip_address_tag 1 -#define grpc_lb_v0_Server_port_tag 2 -#define grpc_lb_v0_Server_load_balance_token_tag 3 -#define grpc_lb_v0_Server_drop_request_tag 4 -#define grpc_lb_v0_InitialLoadBalanceResponse_client_config_tag 1 -#define grpc_lb_v0_InitialLoadBalanceResponse_load_balancer_delegate_tag 2 -#define grpc_lb_v0_InitialLoadBalanceResponse_client_stats_report_interval_tag 3 -#define grpc_lb_v0_LoadBalanceRequest_initial_request_tag 1 -#define grpc_lb_v0_LoadBalanceRequest_client_stats_tag 2 -#define grpc_lb_v0_ServerList_servers_tag 1 -#define grpc_lb_v0_ServerList_expiration_interval_tag 3 -#define grpc_lb_v0_LoadBalanceResponse_initial_response_tag 1 -#define grpc_lb_v0_LoadBalanceResponse_server_list_tag 2 - -/* Struct field encoding specification for nanopb */ -extern const pb_field_t grpc_lb_v0_Duration_fields[3]; -extern const pb_field_t grpc_lb_v0_LoadBalanceRequest_fields[3]; -extern const pb_field_t grpc_lb_v0_InitialLoadBalanceRequest_fields[2]; -extern const pb_field_t grpc_lb_v0_ClientStats_fields[4]; -extern const pb_field_t grpc_lb_v0_LoadBalanceResponse_fields[3]; -extern const pb_field_t grpc_lb_v0_InitialLoadBalanceResponse_fields[4]; -extern const pb_field_t grpc_lb_v0_ServerList_fields[3]; -extern const pb_field_t grpc_lb_v0_Server_fields[5]; - -/* Maximum encoded size of messages (where known) */ -#define grpc_lb_v0_Duration_size 22 -#define grpc_lb_v0_LoadBalanceRequest_size 169 -#define grpc_lb_v0_InitialLoadBalanceRequest_size 131 -#define grpc_lb_v0_ClientStats_size 33 -#define grpc_lb_v0_LoadBalanceResponse_size (165 + grpc_lb_v0_ServerList_size) -#define grpc_lb_v0_InitialLoadBalanceResponse_size 156 -#define grpc_lb_v0_Server_size 127 - -/* Message IDs (where set with "msgid" option) */ -#ifdef PB_MSGID - -#define LOAD_BALANCER_MESSAGES \ - - -#endif - -#ifdef __cplusplus -} /* extern "C" */ -#endif - -#endif diff --git a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c b/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c index 9719673181..52e11c40bb 100644 --- a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c +++ b/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c @@ -33,7 +33,7 @@ /* Automatically generated nanopb constant definitions */ /* Generated by nanopb-0.3.5-dev */ -#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h" +#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h" #if PB_PROTO_HEADER_VERSION != 30 #error Regenerate this file with the current version of nanopb generator. @@ -41,54 +41,53 @@ -const pb_field_t grpc_lb_v0_Duration_fields[3] = { - PB_FIELD( 1, INT64 , OPTIONAL, STATIC , FIRST, grpc_lb_v0_Duration, seconds, seconds, 0), - PB_FIELD( 2, INT32 , OPTIONAL, STATIC , OTHER, grpc_lb_v0_Duration, nanos, seconds, 0), +const pb_field_t grpc_lb_v1_Duration_fields[3] = { + PB_FIELD( 1, INT64 , OPTIONAL, STATIC , FIRST, grpc_lb_v1_Duration, seconds, seconds, 0), + PB_FIELD( 2, INT32 , OPTIONAL, STATIC , OTHER, grpc_lb_v1_Duration, nanos, seconds, 0), PB_LAST_FIELD }; -const pb_field_t grpc_lb_v0_LoadBalanceRequest_fields[3] = { - PB_FIELD( 1, MESSAGE , OPTIONAL, STATIC , FIRST, grpc_lb_v0_LoadBalanceRequest, initial_request, initial_request, &grpc_lb_v0_InitialLoadBalanceRequest_fields), - PB_FIELD( 2, MESSAGE , OPTIONAL, STATIC , OTHER, grpc_lb_v0_LoadBalanceRequest, client_stats, initial_request, &grpc_lb_v0_ClientStats_fields), +const pb_field_t grpc_lb_v1_LoadBalanceRequest_fields[3] = { + PB_FIELD( 1, MESSAGE , OPTIONAL, STATIC , FIRST, grpc_lb_v1_LoadBalanceRequest, initial_request, initial_request, &grpc_lb_v1_InitialLoadBalanceRequest_fields), + PB_FIELD( 2, MESSAGE , OPTIONAL, STATIC , OTHER, grpc_lb_v1_LoadBalanceRequest, client_stats, initial_request, &grpc_lb_v1_ClientStats_fields), PB_LAST_FIELD }; -const pb_field_t grpc_lb_v0_InitialLoadBalanceRequest_fields[2] = { - PB_FIELD( 1, STRING , OPTIONAL, STATIC , FIRST, grpc_lb_v0_InitialLoadBalanceRequest, name, name, 0), +const pb_field_t grpc_lb_v1_InitialLoadBalanceRequest_fields[2] = { + PB_FIELD( 1, STRING , OPTIONAL, STATIC , FIRST, grpc_lb_v1_InitialLoadBalanceRequest, name, name, 0), PB_LAST_FIELD }; -const pb_field_t grpc_lb_v0_ClientStats_fields[4] = { - PB_FIELD( 1, INT64 , OPTIONAL, STATIC , FIRST, grpc_lb_v0_ClientStats, total_requests, total_requests, 0), - PB_FIELD( 2, INT64 , OPTIONAL, STATIC , OTHER, grpc_lb_v0_ClientStats, client_rpc_errors, total_requests, 0), - PB_FIELD( 3, INT64 , OPTIONAL, STATIC , OTHER, grpc_lb_v0_ClientStats, dropped_requests, client_rpc_errors, 0), +const pb_field_t grpc_lb_v1_ClientStats_fields[4] = { + PB_FIELD( 1, INT64 , OPTIONAL, STATIC , FIRST, grpc_lb_v1_ClientStats, total_requests, total_requests, 0), + PB_FIELD( 2, INT64 , OPTIONAL, STATIC , OTHER, grpc_lb_v1_ClientStats, client_rpc_errors, total_requests, 0), + PB_FIELD( 3, INT64 , OPTIONAL, STATIC , OTHER, grpc_lb_v1_ClientStats, dropped_requests, client_rpc_errors, 0), PB_LAST_FIELD }; -const pb_field_t grpc_lb_v0_LoadBalanceResponse_fields[3] = { - PB_FIELD( 1, MESSAGE , OPTIONAL, STATIC , FIRST, grpc_lb_v0_LoadBalanceResponse, initial_response, initial_response, &grpc_lb_v0_InitialLoadBalanceResponse_fields), - PB_FIELD( 2, MESSAGE , OPTIONAL, STATIC , OTHER, grpc_lb_v0_LoadBalanceResponse, server_list, initial_response, &grpc_lb_v0_ServerList_fields), +const pb_field_t grpc_lb_v1_LoadBalanceResponse_fields[3] = { + PB_FIELD( 1, MESSAGE , OPTIONAL, STATIC , FIRST, grpc_lb_v1_LoadBalanceResponse, initial_response, initial_response, &grpc_lb_v1_InitialLoadBalanceResponse_fields), + PB_FIELD( 2, MESSAGE , OPTIONAL, STATIC , OTHER, grpc_lb_v1_LoadBalanceResponse, server_list, initial_response, &grpc_lb_v1_ServerList_fields), PB_LAST_FIELD }; -const pb_field_t grpc_lb_v0_InitialLoadBalanceResponse_fields[4] = { - PB_FIELD( 1, STRING , OPTIONAL, STATIC , FIRST, grpc_lb_v0_InitialLoadBalanceResponse, client_config, client_config, 0), - PB_FIELD( 2, STRING , OPTIONAL, STATIC , OTHER, grpc_lb_v0_InitialLoadBalanceResponse, load_balancer_delegate, client_config, 0), - PB_FIELD( 3, MESSAGE , OPTIONAL, STATIC , OTHER, grpc_lb_v0_InitialLoadBalanceResponse, client_stats_report_interval, load_balancer_delegate, &grpc_lb_v0_Duration_fields), +const pb_field_t grpc_lb_v1_InitialLoadBalanceResponse_fields[3] = { + PB_FIELD( 2, STRING , OPTIONAL, STATIC , FIRST, grpc_lb_v1_InitialLoadBalanceResponse, load_balancer_delegate, load_balancer_delegate, 0), + PB_FIELD( 3, MESSAGE , OPTIONAL, STATIC , OTHER, grpc_lb_v1_InitialLoadBalanceResponse, client_stats_report_interval, load_balancer_delegate, &grpc_lb_v1_Duration_fields), PB_LAST_FIELD }; -const pb_field_t grpc_lb_v0_ServerList_fields[3] = { - PB_FIELD( 1, MESSAGE , REPEATED, CALLBACK, FIRST, grpc_lb_v0_ServerList, servers, servers, &grpc_lb_v0_Server_fields), - PB_FIELD( 3, MESSAGE , OPTIONAL, STATIC , OTHER, grpc_lb_v0_ServerList, expiration_interval, servers, &grpc_lb_v0_Duration_fields), +const pb_field_t grpc_lb_v1_ServerList_fields[3] = { + PB_FIELD( 1, MESSAGE , REPEATED, CALLBACK, FIRST, grpc_lb_v1_ServerList, servers, servers, &grpc_lb_v1_Server_fields), + PB_FIELD( 3, MESSAGE , OPTIONAL, STATIC , OTHER, grpc_lb_v1_ServerList, expiration_interval, servers, &grpc_lb_v1_Duration_fields), PB_LAST_FIELD }; -const pb_field_t grpc_lb_v0_Server_fields[5] = { - PB_FIELD( 1, STRING , OPTIONAL, STATIC , FIRST, grpc_lb_v0_Server, ip_address, ip_address, 0), - PB_FIELD( 2, INT32 , OPTIONAL, STATIC , OTHER, grpc_lb_v0_Server, port, ip_address, 0), - PB_FIELD( 3, BYTES , OPTIONAL, STATIC , OTHER, grpc_lb_v0_Server, load_balance_token, port, 0), - PB_FIELD( 4, BOOL , OPTIONAL, STATIC , OTHER, grpc_lb_v0_Server, drop_request, load_balance_token, 0), +const pb_field_t grpc_lb_v1_Server_fields[5] = { + PB_FIELD( 1, STRING , OPTIONAL, STATIC , FIRST, grpc_lb_v1_Server, ip_address, ip_address, 0), + PB_FIELD( 2, INT32 , OPTIONAL, STATIC , OTHER, grpc_lb_v1_Server, port, ip_address, 0), + PB_FIELD( 3, STRING , OPTIONAL, STATIC , OTHER, grpc_lb_v1_Server, load_balance_token, port, 0), + PB_FIELD( 4, BOOL , OPTIONAL, STATIC , OTHER, grpc_lb_v1_Server, drop_request, load_balance_token, 0), PB_LAST_FIELD }; @@ -102,7 +101,7 @@ const pb_field_t grpc_lb_v0_Server_fields[5] = { * numbers or field sizes that are larger than what can fit in 8 or 16 bit * field descriptors. */ -PB_STATIC_ASSERT((pb_membersize(grpc_lb_v0_LoadBalanceRequest, initial_request) < 65536 && pb_membersize(grpc_lb_v0_LoadBalanceRequest, client_stats) < 65536 && pb_membersize(grpc_lb_v0_LoadBalanceResponse, initial_response) < 65536 && pb_membersize(grpc_lb_v0_LoadBalanceResponse, server_list) < 65536 && pb_membersize(grpc_lb_v0_InitialLoadBalanceResponse, client_stats_report_interval) < 65536 && pb_membersize(grpc_lb_v0_ServerList, servers) < 65536 && pb_membersize(grpc_lb_v0_ServerList, expiration_interval) < 65536), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_grpc_lb_v0_Duration_grpc_lb_v0_LoadBalanceRequest_grpc_lb_v0_InitialLoadBalanceRequest_grpc_lb_v0_ClientStats_grpc_lb_v0_LoadBalanceResponse_grpc_lb_v0_InitialLoadBalanceResponse_grpc_lb_v0_ServerList_grpc_lb_v0_Server) +PB_STATIC_ASSERT((pb_membersize(grpc_lb_v1_LoadBalanceRequest, initial_request) < 65536 && pb_membersize(grpc_lb_v1_LoadBalanceRequest, client_stats) < 65536 && pb_membersize(grpc_lb_v1_LoadBalanceResponse, initial_response) < 65536 && pb_membersize(grpc_lb_v1_LoadBalanceResponse, server_list) < 65536 && pb_membersize(grpc_lb_v1_InitialLoadBalanceResponse, client_stats_report_interval) < 65536 && pb_membersize(grpc_lb_v1_ServerList, servers) < 65536 && pb_membersize(grpc_lb_v1_ServerList, expiration_interval) < 65536), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_grpc_lb_v1_Duration_grpc_lb_v1_LoadBalanceRequest_grpc_lb_v1_InitialLoadBalanceRequest_grpc_lb_v1_ClientStats_grpc_lb_v1_LoadBalanceResponse_grpc_lb_v1_InitialLoadBalanceResponse_grpc_lb_v1_ServerList_grpc_lb_v1_Server) #endif #if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT) @@ -113,7 +112,7 @@ PB_STATIC_ASSERT((pb_membersize(grpc_lb_v0_LoadBalanceRequest, initial_request) * numbers or field sizes that are larger than what can fit in the default * 8 bit descriptors. */ -PB_STATIC_ASSERT((pb_membersize(grpc_lb_v0_LoadBalanceRequest, initial_request) < 256 && pb_membersize(grpc_lb_v0_LoadBalanceRequest, client_stats) < 256 && pb_membersize(grpc_lb_v0_LoadBalanceResponse, initial_response) < 256 && pb_membersize(grpc_lb_v0_LoadBalanceResponse, server_list) < 256 && pb_membersize(grpc_lb_v0_InitialLoadBalanceResponse, client_stats_report_interval) < 256 && pb_membersize(grpc_lb_v0_ServerList, servers) < 256 && pb_membersize(grpc_lb_v0_ServerList, expiration_interval) < 256), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_grpc_lb_v0_Duration_grpc_lb_v0_LoadBalanceRequest_grpc_lb_v0_InitialLoadBalanceRequest_grpc_lb_v0_ClientStats_grpc_lb_v0_LoadBalanceResponse_grpc_lb_v0_InitialLoadBalanceResponse_grpc_lb_v0_ServerList_grpc_lb_v0_Server) +PB_STATIC_ASSERT((pb_membersize(grpc_lb_v1_LoadBalanceRequest, initial_request) < 256 && pb_membersize(grpc_lb_v1_LoadBalanceRequest, client_stats) < 256 && pb_membersize(grpc_lb_v1_LoadBalanceResponse, initial_response) < 256 && pb_membersize(grpc_lb_v1_LoadBalanceResponse, server_list) < 256 && pb_membersize(grpc_lb_v1_InitialLoadBalanceResponse, client_stats_report_interval) < 256 && pb_membersize(grpc_lb_v1_ServerList, servers) < 256 && pb_membersize(grpc_lb_v1_ServerList, expiration_interval) < 256), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_grpc_lb_v1_Duration_grpc_lb_v1_LoadBalanceRequest_grpc_lb_v1_InitialLoadBalanceRequest_grpc_lb_v1_ClientStats_grpc_lb_v1_LoadBalanceResponse_grpc_lb_v1_InitialLoadBalanceResponse_grpc_lb_v1_ServerList_grpc_lb_v1_Server) #endif diff --git a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h b/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h new file mode 100644 index 0000000000..46fe588f72 --- /dev/null +++ b/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h @@ -0,0 +1,178 @@ +/* + * + * 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 GRPC_CORE_EXT_LB_POLICY_GRPCLB_PROTO_GRPC_LB_V1_LOAD_BALANCER_PB_H +#define GRPC_CORE_EXT_LB_POLICY_GRPCLB_PROTO_GRPC_LB_V1_LOAD_BALANCER_PB_H +#include "third_party/nanopb/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 + +/* Struct definitions */ +typedef struct _grpc_lb_v1_ClientStats { + bool has_total_requests; + int64_t total_requests; + bool has_client_rpc_errors; + int64_t client_rpc_errors; + bool has_dropped_requests; + int64_t dropped_requests; +} grpc_lb_v1_ClientStats; + +typedef struct _grpc_lb_v1_Duration { + bool has_seconds; + int64_t seconds; + bool has_nanos; + int32_t nanos; +} grpc_lb_v1_Duration; + +typedef struct _grpc_lb_v1_InitialLoadBalanceRequest { + bool has_name; + char name[128]; +} grpc_lb_v1_InitialLoadBalanceRequest; + +typedef struct _grpc_lb_v1_Server { + bool has_ip_address; + char ip_address[46]; + bool has_port; + int32_t port; + bool has_load_balance_token; + char load_balance_token[64]; + bool has_drop_request; + bool drop_request; +} grpc_lb_v1_Server; + +typedef struct _grpc_lb_v1_InitialLoadBalanceResponse { + bool has_load_balancer_delegate; + char load_balancer_delegate[64]; + bool has_client_stats_report_interval; + grpc_lb_v1_Duration client_stats_report_interval; +} grpc_lb_v1_InitialLoadBalanceResponse; + +typedef struct _grpc_lb_v1_LoadBalanceRequest { + bool has_initial_request; + grpc_lb_v1_InitialLoadBalanceRequest initial_request; + bool has_client_stats; + grpc_lb_v1_ClientStats client_stats; +} grpc_lb_v1_LoadBalanceRequest; + +typedef struct _grpc_lb_v1_ServerList { + pb_callback_t servers; + bool has_expiration_interval; + grpc_lb_v1_Duration expiration_interval; +} grpc_lb_v1_ServerList; + +typedef struct _grpc_lb_v1_LoadBalanceResponse { + bool has_initial_response; + grpc_lb_v1_InitialLoadBalanceResponse initial_response; + bool has_server_list; + grpc_lb_v1_ServerList server_list; +} grpc_lb_v1_LoadBalanceResponse; + +/* Default values for struct fields */ + +/* Initializer values for message structs */ +#define grpc_lb_v1_Duration_init_default {false, 0, false, 0} +#define grpc_lb_v1_LoadBalanceRequest_init_default {false, grpc_lb_v1_InitialLoadBalanceRequest_init_default, false, grpc_lb_v1_ClientStats_init_default} +#define grpc_lb_v1_InitialLoadBalanceRequest_init_default {false, ""} +#define grpc_lb_v1_ClientStats_init_default {false, 0, false, 0, false, 0} +#define grpc_lb_v1_LoadBalanceResponse_init_default {false, grpc_lb_v1_InitialLoadBalanceResponse_init_default, false, grpc_lb_v1_ServerList_init_default} +#define grpc_lb_v1_InitialLoadBalanceResponse_init_default {false, "", false, grpc_lb_v1_Duration_init_default} +#define grpc_lb_v1_ServerList_init_default {{{NULL}, NULL}, false, grpc_lb_v1_Duration_init_default} +#define grpc_lb_v1_Server_init_default {false, "", false, 0, false, "", false, 0} +#define grpc_lb_v1_Duration_init_zero {false, 0, false, 0} +#define grpc_lb_v1_LoadBalanceRequest_init_zero {false, grpc_lb_v1_InitialLoadBalanceRequest_init_zero, false, grpc_lb_v1_ClientStats_init_zero} +#define grpc_lb_v1_InitialLoadBalanceRequest_init_zero {false, ""} +#define grpc_lb_v1_ClientStats_init_zero {false, 0, false, 0, false, 0} +#define grpc_lb_v1_LoadBalanceResponse_init_zero {false, grpc_lb_v1_InitialLoadBalanceResponse_init_zero, false, grpc_lb_v1_ServerList_init_zero} +#define grpc_lb_v1_InitialLoadBalanceResponse_init_zero {false, "", false, grpc_lb_v1_Duration_init_zero} +#define grpc_lb_v1_ServerList_init_zero {{{NULL}, NULL}, false, grpc_lb_v1_Duration_init_zero} +#define grpc_lb_v1_Server_init_zero {false, "", false, 0, false, "", false, 0} + +/* Field tags (for use in manual encoding/decoding) */ +#define grpc_lb_v1_ClientStats_total_requests_tag 1 +#define grpc_lb_v1_ClientStats_client_rpc_errors_tag 2 +#define grpc_lb_v1_ClientStats_dropped_requests_tag 3 +#define grpc_lb_v1_Duration_seconds_tag 1 +#define grpc_lb_v1_Duration_nanos_tag 2 +#define grpc_lb_v1_InitialLoadBalanceRequest_name_tag 1 +#define grpc_lb_v1_Server_ip_address_tag 1 +#define grpc_lb_v1_Server_port_tag 2 +#define grpc_lb_v1_Server_load_balance_token_tag 3 +#define grpc_lb_v1_Server_drop_request_tag 4 +#define grpc_lb_v1_InitialLoadBalanceResponse_load_balancer_delegate_tag 2 +#define grpc_lb_v1_InitialLoadBalanceResponse_client_stats_report_interval_tag 3 +#define grpc_lb_v1_LoadBalanceRequest_initial_request_tag 1 +#define grpc_lb_v1_LoadBalanceRequest_client_stats_tag 2 +#define grpc_lb_v1_ServerList_servers_tag 1 +#define grpc_lb_v1_ServerList_expiration_interval_tag 3 +#define grpc_lb_v1_LoadBalanceResponse_initial_response_tag 1 +#define grpc_lb_v1_LoadBalanceResponse_server_list_tag 2 + +/* Struct field encoding specification for nanopb */ +extern const pb_field_t grpc_lb_v1_Duration_fields[3]; +extern const pb_field_t grpc_lb_v1_LoadBalanceRequest_fields[3]; +extern const pb_field_t grpc_lb_v1_InitialLoadBalanceRequest_fields[2]; +extern const pb_field_t grpc_lb_v1_ClientStats_fields[4]; +extern const pb_field_t grpc_lb_v1_LoadBalanceResponse_fields[3]; +extern const pb_field_t grpc_lb_v1_InitialLoadBalanceResponse_fields[3]; +extern const pb_field_t grpc_lb_v1_ServerList_fields[3]; +extern const pb_field_t grpc_lb_v1_Server_fields[5]; + +/* Maximum encoded size of messages (where known) */ +#define grpc_lb_v1_Duration_size 22 +#define grpc_lb_v1_LoadBalanceRequest_size 169 +#define grpc_lb_v1_InitialLoadBalanceRequest_size 131 +#define grpc_lb_v1_ClientStats_size 33 +#define grpc_lb_v1_LoadBalanceResponse_size (98 + grpc_lb_v1_ServerList_size) +#define grpc_lb_v1_InitialLoadBalanceResponse_size 90 +#define grpc_lb_v1_Server_size 127 + +/* Message IDs (where set with "msgid" option) */ +#ifdef PB_MSGID + +#define LOAD_BALANCER_MESSAGES \ + + +#endif + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif diff --git a/src/core/ext/lb_policy/pick_first/pick_first.c b/src/core/ext/lb_policy/pick_first/pick_first.c index 0d215cd196..9decf70692 100644 --- a/src/core/ext/lb_policy/pick_first/pick_first.c +++ b/src/core/ext/lb_policy/pick_first/pick_first.c @@ -39,7 +39,7 @@ typedef struct pending_pick { struct pending_pick *next; - grpc_pollset *pollset; + grpc_polling_entity *pollent; uint32_t initial_metadata_flags; grpc_connected_subchannel **target; grpc_closure *on_complete; @@ -103,8 +103,9 @@ static void pf_shutdown(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { p->shutdown = 1; pp = p->pending_picks; p->pending_picks = NULL; - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_FATAL_FAILURE, "shutdown"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN, + GRPC_ERROR_CREATE("Channel shutdown"), "shutdown"); /* cancel subscription */ if (selected != NULL) { grpc_connected_subchannel_notify_on_state_change( @@ -118,9 +119,9 @@ static void pf_shutdown(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { while (pp != NULL) { pending_pick *next = pp->next; *pp->target = NULL; - grpc_pollset_set_del_pollset(exec_ctx, p->base.interested_parties, - pp->pollset); - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL); + grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent, + p->base.interested_parties); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_NONE, NULL); gpr_free(pp); pp = next; } @@ -136,10 +137,11 @@ static void pf_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, while (pp != NULL) { pending_pick *next = pp->next; if (pp->target == target) { - grpc_pollset_set_del_pollset(exec_ctx, p->base.interested_parties, - pp->pollset); + grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent, + p->base.interested_parties); *target = NULL; - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, + GRPC_ERROR_CREATE("Pick Cancelled"), NULL); gpr_free(pp); } else { pp->next = p->pending_picks; @@ -162,9 +164,10 @@ static void pf_cancel_picks(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, pending_pick *next = pp->next; if ((pp->initial_metadata_flags & initial_metadata_flags_mask) == initial_metadata_flags_eq) { - grpc_pollset_set_del_pollset(exec_ctx, p->base.interested_parties, - pp->pollset); - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL); + grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent, + p->base.interested_parties); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, + GRPC_ERROR_CREATE("Pick Cancelled"), NULL); gpr_free(pp); } else { pp->next = p->pending_picks; @@ -196,7 +199,8 @@ static void pf_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { } static int pf_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - grpc_pollset *pollset, grpc_metadata_batch *initial_metadata, + grpc_polling_entity *pollent, + grpc_metadata_batch *initial_metadata, uint32_t initial_metadata_flags, grpc_connected_subchannel **target, grpc_closure *on_complete) { @@ -221,10 +225,11 @@ static int pf_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, if (!p->started_picking) { start_picking(exec_ctx, p); } - grpc_pollset_set_add_pollset(exec_ctx, p->base.interested_parties, pollset); + grpc_polling_entity_add_to_pollset_set(exec_ctx, pollent, + p->base.interested_parties); pp = gpr_malloc(sizeof(*pp)); pp->next = p->pending_picks; - pp->pollset = pollset; + pp->pollent = pollent; pp->target = target; pp->initial_metadata_flags = initial_metadata_flags; pp->on_complete = on_complete; @@ -235,7 +240,7 @@ static int pf_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, } static void destroy_subchannels(grpc_exec_ctx *exec_ctx, void *arg, - bool iomgr_success) { + grpc_error *error) { pick_first_lb_policy *p = arg; size_t i; size_t num_subchannels = p->num_subchannels; @@ -256,12 +261,14 @@ static void destroy_subchannels(grpc_exec_ctx *exec_ctx, void *arg, } static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, - bool iomgr_success) { + grpc_error *error) { pick_first_lb_policy *p = arg; grpc_subchannel *selected_subchannel; pending_pick *pp; grpc_connected_subchannel *selected; + GRPC_ERROR_REF(error); + gpr_mu_lock(&p->mu); selected = GET_SELECTED(p); @@ -269,15 +276,17 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, if (p->shutdown) { gpr_mu_unlock(&p->mu); GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, "pick_first_connectivity"); + GRPC_ERROR_UNREF(error); return; } else if (selected != NULL) { if (p->checking_connectivity == GRPC_CHANNEL_TRANSIENT_FAILURE) { /* if the selected channel goes bad, we're done */ - p->checking_connectivity = GRPC_CHANNEL_FATAL_FAILURE; + p->checking_connectivity = GRPC_CHANNEL_SHUTDOWN; } grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - p->checking_connectivity, "selected_changed"); - if (p->checking_connectivity != GRPC_CHANNEL_FATAL_FAILURE) { + p->checking_connectivity, GRPC_ERROR_REF(error), + "selected_changed"); + if (p->checking_connectivity != GRPC_CHANNEL_SHUTDOWN) { grpc_connected_subchannel_notify_on_state_change( exec_ctx, selected, p->base.interested_parties, &p->checking_connectivity, &p->connectivity_changed); @@ -289,7 +298,8 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, switch (p->checking_connectivity) { case GRPC_CHANNEL_READY: grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_READY, "connecting_ready"); + GRPC_CHANNEL_READY, GRPC_ERROR_NONE, + "connecting_ready"); selected_subchannel = p->subchannels[p->checking_subchannel]; selected = grpc_subchannel_get_connected_subchannel(selected_subchannel); @@ -298,15 +308,16 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, /* drop the pick list: we are connected now */ GRPC_LB_POLICY_WEAK_REF(&p->base, "destroy_subchannels"); gpr_atm_rel_store(&p->selected, (gpr_atm)selected); - grpc_exec_ctx_enqueue( - exec_ctx, grpc_closure_create(destroy_subchannels, p), true, NULL); + grpc_exec_ctx_sched(exec_ctx, + grpc_closure_create(destroy_subchannels, p), + GRPC_ERROR_NONE, NULL); /* update any calls that were waiting for a pick */ while ((pp = p->pending_picks)) { p->pending_picks = pp->next; *pp->target = selected; - grpc_pollset_set_del_pollset(exec_ctx, p->base.interested_parties, - pp->pollset); - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL); + grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent, + p->base.interested_parties); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_NONE, NULL); gpr_free(pp); } grpc_connected_subchannel_notify_on_state_change( @@ -318,12 +329,13 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, (p->checking_subchannel + 1) % p->num_subchannels; if (p->checking_subchannel == 0) { /* only trigger transient failure when we've tried all alternatives */ - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_TRANSIENT_FAILURE, - "connecting_transient_failure"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, + GRPC_ERROR_REF(error), "connecting_transient_failure"); } + GRPC_ERROR_UNREF(error); p->checking_connectivity = grpc_subchannel_check_connectivity( - p->subchannels[p->checking_subchannel]); + p->subchannels[p->checking_subchannel], &error); if (p->checking_connectivity == GRPC_CHANNEL_TRANSIENT_FAILURE) { grpc_subchannel_notify_on_state_change( exec_ctx, p->subchannels[p->checking_subchannel], @@ -335,53 +347,60 @@ static void pf_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, break; case GRPC_CHANNEL_CONNECTING: case GRPC_CHANNEL_IDLE: - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_CONNECTING, - "connecting_changed"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_CONNECTING, + GRPC_ERROR_REF(error), "connecting_changed"); grpc_subchannel_notify_on_state_change( exec_ctx, p->subchannels[p->checking_subchannel], p->base.interested_parties, &p->checking_connectivity, &p->connectivity_changed); break; - case GRPC_CHANNEL_FATAL_FAILURE: + case GRPC_CHANNEL_SHUTDOWN: p->num_subchannels--; GPR_SWAP(grpc_subchannel *, p->subchannels[p->checking_subchannel], p->subchannels[p->num_subchannels]); GRPC_SUBCHANNEL_UNREF(exec_ctx, p->subchannels[p->num_subchannels], "pick_first"); if (p->num_subchannels == 0) { - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_FATAL_FAILURE, - "no_more_channels"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN, + GRPC_ERROR_CREATE_REFERENCING("Pick first exhausted channels", + &error, 1), + "no_more_channels"); while ((pp = p->pending_picks)) { p->pending_picks = pp->next; *pp->target = NULL; - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_NONE, + NULL); gpr_free(pp); } GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, "pick_first_connectivity"); } else { - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_TRANSIENT_FAILURE, - "subchannel_failed"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, + GRPC_ERROR_REF(error), "subchannel_failed"); p->checking_subchannel %= p->num_subchannels; + GRPC_ERROR_UNREF(error); p->checking_connectivity = grpc_subchannel_check_connectivity( - p->subchannels[p->checking_subchannel]); + p->subchannels[p->checking_subchannel], &error); goto loop; } } } gpr_mu_unlock(&p->mu); + + GRPC_ERROR_UNREF(error); } static grpc_connectivity_state pf_check_connectivity(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *pol) { + grpc_lb_policy *pol, + grpc_error **error) { pick_first_lb_policy *p = (pick_first_lb_policy *)pol; grpc_connectivity_state st; gpr_mu_lock(&p->mu); - st = grpc_connectivity_state_check(&p->state_tracker); + st = grpc_connectivity_state_check(&p->state_tracker, error); gpr_mu_unlock(&p->mu); return st; } @@ -404,7 +423,8 @@ static void pf_ping_one(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, if (selected) { grpc_connected_subchannel_ping(exec_ctx, selected, closure); } else { - grpc_exec_ctx_enqueue(exec_ctx, closure, false, NULL); + grpc_exec_ctx_sched(exec_ctx, closure, GRPC_ERROR_CREATE("Not connected"), + NULL); } } diff --git a/src/core/ext/lb_policy/round_robin/round_robin.c b/src/core/ext/lb_policy/round_robin/round_robin.c index dcdc0c6285..7bcf608ab9 100644 --- a/src/core/ext/lb_policy/round_robin/round_robin.c +++ b/src/core/ext/lb_policy/round_robin/round_robin.c @@ -31,6 +31,34 @@ * */ +/** Round Robin Policy. + * + * This policy keeps: + * - A circular list of ready (connected) subchannels, the *readylist*. An empty + * readylist consists solely of its root (dummy) node. + * - A pointer to the last element picked from the readylist, the *lastpick*. + * Initially set to point to the readylist's root. + * + * Behavior: + * - When a subchannel connects, it's *prepended* to the readylist's root node. + * Ie, if readylist = A <-> B <-> ROOT <-> C + * ^ ^ + * |____________________| + * and subchannel D becomes connected, the addition of D to the readylist + * results in readylist = A <-> B <-> D <-> ROOT <-> C + * ^ ^ + * |__________________________| + * - When a subchannel disconnects, it's removed from the readylist. If the + * subchannel being removed was the most recently picked, the *lastpick* + * pointer moves to the removed node's previous element. Note that if the + * readylist only had one element, this is still legal, as the lastpick would + * point to the dummy root node, for an empty readylist. + * - Upon picking, *lastpick* is updated to point to the returned (connected) + * subchannel. Note that it's possible that the selected subchannel becomes + * disconnected in the interim between the selection and the actual usage of + * the subchannel by the caller. + */ + #include <string.h> #include <grpc/support/alloc.h> @@ -48,7 +76,7 @@ int grpc_lb_round_robin_trace = 0; * Once a pick is available, \a target is updated and \a on_complete called. */ typedef struct pending_pick { struct pending_pick *next; - grpc_pollset *pollset; + grpc_polling_entity *pollent; uint32_t initial_metadata_flags; grpc_connected_subchannel **target; grpc_closure *on_complete; @@ -173,9 +201,7 @@ static void remove_disconnected_sc_locked(round_robin_lb_policy *p, return; } if (node == p->ready_list_last_pick) { - /* If removing the lastly picked node, reset the last pick pointer to the - * dummy root of the list */ - p->ready_list_last_pick = &p->ready_list; + p->ready_list_last_pick = p->ready_list_last_pick->prev; } /* removing last item */ @@ -239,11 +265,13 @@ static void rr_shutdown(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { while ((pp = p->pending_picks)) { p->pending_picks = pp->next; *pp->target = NULL; - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, + GRPC_ERROR_CREATE("Channel Shutdown"), NULL); gpr_free(pp); } - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_FATAL_FAILURE, "shutdown"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN, + GRPC_ERROR_CREATE("Channel Shutdown"), "shutdown"); for (i = 0; i < p->num_subchannels; i++) { subchannel_data *sd = p->subchannels[i]; grpc_subchannel_notify_on_state_change(exec_ctx, sd->subchannel, NULL, NULL, @@ -262,10 +290,11 @@ static void rr_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, while (pp != NULL) { pending_pick *next = pp->next; if (pp->target == target) { - grpc_pollset_set_del_pollset(exec_ctx, p->base.interested_parties, - pp->pollset); + grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent, + p->base.interested_parties); *target = NULL; - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_CANCELLED, + NULL); gpr_free(pp); } else { pp->next = p->pending_picks; @@ -288,10 +317,11 @@ static void rr_cancel_picks(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, pending_pick *next = pp->next; if ((pp->initial_metadata_flags & initial_metadata_flags_mask) == initial_metadata_flags_eq) { - grpc_pollset_set_del_pollset(exec_ctx, p->base.interested_parties, - pp->pollset); + grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent, + p->base.interested_parties); *pp->target = NULL; - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, false, NULL); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_CANCELLED, + NULL); gpr_free(pp); } else { pp->next = p->pending_picks; @@ -307,7 +337,7 @@ static void start_picking(grpc_exec_ctx *exec_ctx, round_robin_lb_policy *p) { p->started_picking = 1; if (grpc_lb_round_robin_trace) { - gpr_log(GPR_DEBUG, "LB_POLICY: p=%p num_subchannels=%d", p, + gpr_log(GPR_DEBUG, "LB_POLICY: p=%p num_subchannels=%" PRIuPTR, p, p->num_subchannels); } @@ -331,7 +361,8 @@ static void rr_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { } static int rr_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - grpc_pollset *pollset, grpc_metadata_batch *initial_metadata, + grpc_polling_entity *pollent, + grpc_metadata_batch *initial_metadata, uint32_t initial_metadata_flags, grpc_connected_subchannel **target, grpc_closure *on_complete) { @@ -344,8 +375,8 @@ static int rr_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, *target = grpc_subchannel_get_connected_subchannel(selected->subchannel); if (grpc_lb_round_robin_trace) { gpr_log(GPR_DEBUG, - "[RR PICK] TARGET <-- CONNECTED SUBCHANNEL %p (NODE %p)", - selected->subchannel, selected); + "[RR PICK] TARGET <-- CONNECTED SUBCHANNEL %p (NODE %p)", *target, + selected); } /* only advance the last picked pointer if the selection was used */ advance_last_picked_locked(p); @@ -354,10 +385,11 @@ static int rr_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, if (!p->started_picking) { start_picking(exec_ctx, p); } - grpc_pollset_set_add_pollset(exec_ctx, p->base.interested_parties, pollset); + grpc_polling_entity_add_to_pollset_set(exec_ctx, pollent, + p->base.interested_parties); pp = gpr_malloc(sizeof(*pp)); pp->next = p->pending_picks; - pp->pollset = pollset; + pp->pollent = pollent; pp->target = target; pp->on_complete = on_complete; pp->initial_metadata_flags = initial_metadata_flags; @@ -368,7 +400,7 @@ static int rr_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, } static void rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, - bool iomgr_success) { + grpc_error *error) { subchannel_data *sd = arg; round_robin_lb_policy *p = sd->policy; pending_pick *pp; @@ -376,6 +408,7 @@ static void rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, int unref = 0; + GRPC_ERROR_REF(error); gpr_mu_lock(&p->mu); if (p->shutdown) { @@ -384,7 +417,8 @@ static void rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, switch (sd->connectivity_state) { case GRPC_CHANNEL_READY: grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_READY, "connecting_ready"); + GRPC_CHANNEL_READY, GRPC_ERROR_REF(error), + "connecting_ready"); /* add the newly connected subchannel to the list of connected ones. * Note that it goes to the "end of the line". */ sd->ready_list_node = add_connected_sc_locked(p, sd->subchannel); @@ -406,9 +440,9 @@ static void rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, "[RR CONN CHANGED] TARGET <-- SUBCHANNEL %p (NODE %p)", selected->subchannel, selected); } - grpc_pollset_set_del_pollset(exec_ctx, p->base.interested_parties, - pp->pollset); - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL); + grpc_polling_entity_del_from_pollset_set(exec_ctx, pp->pollent, + p->base.interested_parties); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_NONE, NULL); gpr_free(pp); } grpc_subchannel_notify_on_state_change( @@ -417,9 +451,9 @@ static void rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, break; case GRPC_CHANNEL_CONNECTING: case GRPC_CHANNEL_IDLE: - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - sd->connectivity_state, - "connecting_changed"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, sd->connectivity_state, + GRPC_ERROR_REF(error), "connecting_changed"); grpc_subchannel_notify_on_state_change( exec_ctx, sd->subchannel, p->base.interested_parties, &sd->connectivity_state, &sd->connectivity_changed_closure); @@ -435,11 +469,11 @@ static void rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, remove_disconnected_sc_locked(p, sd->ready_list_node); sd->ready_list_node = NULL; } - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_TRANSIENT_FAILURE, - "connecting_transient_failure"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, + GRPC_ERROR_REF(error), "connecting_transient_failure"); break; - case GRPC_CHANNEL_FATAL_FAILURE: + case GRPC_CHANNEL_SHUTDOWN: if (sd->ready_list_node != NULL) { remove_disconnected_sc_locked(p, sd->ready_list_node); sd->ready_list_node = NULL; @@ -454,19 +488,22 @@ static void rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, unref = 1; if (p->num_subchannels == 0) { - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_FATAL_FAILURE, - "no_more_channels"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN, + GRPC_ERROR_CREATE_REFERENCING("Round Robin Channels Exhausted", + &error, 1), + "no_more_channels"); while ((pp = p->pending_picks)) { p->pending_picks = pp->next; *pp->target = NULL; - grpc_exec_ctx_enqueue(exec_ctx, pp->on_complete, true, NULL); + grpc_exec_ctx_sched(exec_ctx, pp->on_complete, GRPC_ERROR_NONE, + NULL); gpr_free(pp); } } else { - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_TRANSIENT_FAILURE, - "subchannel_failed"); + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, + GRPC_ERROR_REF(error), "subchannel_failed"); } } /* switch */ } /* !unref */ @@ -476,14 +513,17 @@ static void rr_connectivity_changed(grpc_exec_ctx *exec_ctx, void *arg, if (unref) { GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, "round_robin_connectivity"); } + + GRPC_ERROR_UNREF(error); } static grpc_connectivity_state rr_check_connectivity(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *pol) { + grpc_lb_policy *pol, + grpc_error **error) { round_robin_lb_policy *p = (round_robin_lb_policy *)pol; grpc_connectivity_state st; gpr_mu_lock(&p->mu); - st = grpc_connectivity_state_check(&p->state_tracker); + st = grpc_connectivity_state_check(&p->state_tracker, error); gpr_mu_unlock(&p->mu); return st; } @@ -511,7 +551,8 @@ static void rr_ping_one(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, grpc_connected_subchannel_ping(exec_ctx, target, closure); } else { gpr_mu_unlock(&p->mu); - grpc_exec_ctx_enqueue(exec_ctx, closure, false, NULL); + grpc_exec_ctx_sched(exec_ctx, closure, + GRPC_ERROR_CREATE("Round Robin not connected"), NULL); } } @@ -524,7 +565,7 @@ static void round_robin_factory_ref(grpc_lb_policy_factory *factory) {} static void round_robin_factory_unref(grpc_lb_policy_factory *factory) {} -static grpc_lb_policy *create_round_robin(grpc_exec_ctx *exec_ctx, +static grpc_lb_policy *round_robin_create(grpc_exec_ctx *exec_ctx, grpc_lb_policy_factory *factory, grpc_lb_policy_args *args) { GPR_ASSERT(args->addresses != NULL); @@ -580,7 +621,7 @@ static grpc_lb_policy *create_round_robin(grpc_exec_ctx *exec_ctx, } static const grpc_lb_policy_factory_vtable round_robin_factory_vtable = { - round_robin_factory_ref, round_robin_factory_unref, create_round_robin, + round_robin_factory_ref, round_robin_factory_unref, round_robin_create, "round_robin"}; static grpc_lb_policy_factory round_robin_lb_policy_factory = { |