C++ (Cpp) grpc_lb_policy_ping_one Examples

Example #1

File: client_channel.c Project: gnirodi/grpc

static void cc_start_transport_op(grpc_exec_ctx *exec_ctx,
                                  grpc_channel_element *elem,
                                  grpc_transport_op *op) {
  channel_data *chand = elem->channel_data;

  grpc_exec_ctx_sched(exec_ctx, op->on_consumed, GRPC_ERROR_NONE, NULL);

  GPR_ASSERT(op->set_accept_stream == false);
  if (op->bind_pollset != NULL) {
    grpc_pollset_set_add_pollset(exec_ctx, chand->interested_parties,
                                 op->bind_pollset);
  }

  gpr_mu_lock(&chand->mu);
  if (op->on_connectivity_state_change != NULL) {
    grpc_connectivity_state_notify_on_state_change(
        exec_ctx, &chand->state_tracker, op->connectivity_state,
        op->on_connectivity_state_change);
    op->on_connectivity_state_change = NULL;
    op->connectivity_state = NULL;
  }

  if (op->send_ping != NULL) {
    if (chand->lb_policy == NULL) {
      grpc_exec_ctx_sched(exec_ctx, op->send_ping,
                          GRPC_ERROR_CREATE("Ping with no load balancing"),
                          NULL);
    } else {
      grpc_lb_policy_ping_one(exec_ctx, chand->lb_policy, op->send_ping);
      op->bind_pollset = NULL;
    }
    op->send_ping = NULL;
  }

  if (op->disconnect_with_error != GRPC_ERROR_NONE) {
    if (chand->resolver != NULL) {
      set_channel_connectivity_state_locked(
          exec_ctx, chand, GRPC_CHANNEL_SHUTDOWN,
          GRPC_ERROR_REF(op->disconnect_with_error), "disconnect");
      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_ERROR_REF(op->disconnect_with_error));
        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,
                                         chand->interested_parties);
        GRPC_LB_POLICY_UNREF(exec_ctx, chand->lb_policy, "channel");
        chand->lb_policy = NULL;
      }
    }
    GRPC_ERROR_UNREF(op->disconnect_with_error);
  }
  gpr_mu_unlock(&chand->mu);
}

Example #2

File: client_channel.c Project: AlexTalks/bazel

static void cc_start_transport_op(grpc_exec_ctx *exec_ctx,
                                  grpc_channel_element *elem,
                                  grpc_transport_op *op) {
  channel_data *chand = elem->channel_data;
  grpc_resolver *destroy_resolver = NULL;

  grpc_exec_ctx_enqueue(exec_ctx, op->on_consumed, true, NULL);

  GPR_ASSERT(op->set_accept_stream == NULL);
  if (op->bind_pollset != NULL) {
    grpc_pollset_set_add_pollset(exec_ctx, &chand->interested_parties,
                                 op->bind_pollset);
  }

  gpr_mu_lock(&chand->mu_config);
  if (op->on_connectivity_state_change != NULL) {
    grpc_connectivity_state_notify_on_state_change(
        exec_ctx, &chand->state_tracker, op->connectivity_state,
        op->on_connectivity_state_change);
    op->on_connectivity_state_change = NULL;
    op->connectivity_state = NULL;
  }

  if (op->send_ping != NULL) {
    if (chand->lb_policy == NULL) {
      grpc_exec_ctx_enqueue(exec_ctx, op->send_ping, false, NULL);
    } else {
      grpc_lb_policy_ping_one(exec_ctx, chand->lb_policy, op->send_ping);
      op->bind_pollset = NULL;
    }
    op->send_ping = NULL;
  }

  if (op->disconnect && chand->resolver != NULL) {
    grpc_connectivity_state_set(exec_ctx, &chand->state_tracker,
                                GRPC_CHANNEL_FATAL_FAILURE, "disconnect");
    destroy_resolver = chand->resolver;
    chand->resolver = NULL;
    if (chand->lb_policy != NULL) {
      grpc_pollset_set_del_pollset_set(exec_ctx,
                                       &chand->lb_policy->interested_parties,
                                       &chand->interested_parties);
      GRPC_LB_POLICY_UNREF(exec_ctx, chand->lb_policy, "channel");
      chand->lb_policy = NULL;
    }
  }
  gpr_mu_unlock(&chand->mu_config);

  if (destroy_resolver) {
    grpc_resolver_shutdown(exec_ctx, destroy_resolver);
    GRPC_RESOLVER_UNREF(exec_ctx, destroy_resolver, "channel");
  }
}