diff options
Diffstat (limited to 'src/core/ext/client_config/client_channel.c')
| -rw-r--r-- | src/core/ext/client_config/client_channel.c | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/src/core/ext/client_config/client_channel.c b/src/core/ext/client_config/client_channel.c index 93d54fdcfe..8a98a6bcbe 100644 --- a/src/core/ext/client_config/client_channel.c +++ b/src/core/ext/client_config/client_channel.c @@ -205,7 +205,11 @@ static void cc_on_config_changed(grpc_exec_ctx *exec_ctx, void *arg, gpr_mu_lock(&chand->mu_config); old_lb_policy = chand->lb_policy; chand->lb_policy = lb_policy; - if (lb_policy != NULL || chand->resolver == NULL /* disconnected */) { + if (lb_policy != NULL) { + grpc_exec_ctx_enqueue_list(exec_ctx, &chand->waiting_for_config_closures, + NULL); + } else if (chand->resolver == NULL /* disconnected */) { + grpc_closure_list_fail_all(&chand->waiting_for_config_closures); grpc_exec_ctx_enqueue_list(exec_ctx, &chand->waiting_for_config_closures, NULL); } @@ -293,6 +297,11 @@ static void cc_start_transport_op(grpc_exec_ctx *exec_ctx, grpc_resolver_shutdown(exec_ctx, chand->resolver); GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel"); chand->resolver = NULL; + if (!chand->started_resolving) { + grpc_closure_list_fail_all(&chand->waiting_for_config_closures); + grpc_exec_ctx_enqueue_list(exec_ctx, &chand->waiting_for_config_closures, + NULL); + } if (chand->lb_policy != NULL) { grpc_pollset_set_del_pollset_set(exec_ctx, chand->lb_policy->interested_parties, @@ -321,10 +330,10 @@ static int cc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *arg, static void continue_picking(grpc_exec_ctx *exec_ctx, void *arg, bool success) { continue_picking_args *cpa = arg; - if (!success) { - grpc_exec_ctx_enqueue(exec_ctx, cpa->on_ready, false, NULL); - } else if (cpa->connected_subchannel == NULL) { + if (cpa->connected_subchannel == NULL) { /* cancelled, do nothing */ + } else if (!success) { + grpc_exec_ctx_enqueue(exec_ctx, cpa->on_ready, false, NULL); } else if (cc_pick_subchannel(exec_ctx, cpa->elem, cpa->initial_metadata, cpa->initial_metadata_flags, cpa->connected_subchannel, cpa->on_ready)) { @@ -381,14 +390,19 @@ static int cc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *elemp, &chand->incoming_configuration, &chand->on_config_changed); } - cpa = gpr_malloc(sizeof(*cpa)); - cpa->initial_metadata = initial_metadata; - cpa->initial_metadata_flags = initial_metadata_flags; - cpa->connected_subchannel = connected_subchannel; - cpa->on_ready = on_ready; - cpa->elem = elem; - grpc_closure_init(&cpa->closure, continue_picking, cpa); - grpc_closure_list_add(&chand->waiting_for_config_closures, &cpa->closure, 1); + if (chand->resolver != NULL) { + cpa = gpr_malloc(sizeof(*cpa)); + cpa->initial_metadata = initial_metadata; + cpa->initial_metadata_flags = initial_metadata_flags; + cpa->connected_subchannel = connected_subchannel; + cpa->on_ready = on_ready; + cpa->elem = elem; + grpc_closure_init(&cpa->closure, continue_picking, cpa); + grpc_closure_list_add(&chand->waiting_for_config_closures, &cpa->closure, + 1); + } else { + grpc_exec_ctx_enqueue(exec_ctx, on_ready, false, NULL); + } gpr_mu_unlock(&chand->mu_config); return 0; } |