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#include "src/core/ext/client_config/resolver_result.h"

#include <string.h>

#include <grpc/support/alloc.h>

struct grpc_resolver_result {
  gpr_refcount refs;
  grpc_lb_policy* lb_policy;
};

grpc_resolver_result* grpc_resolver_result_create() {
  grpc_resolver_result* c = gpr_malloc(sizeof(*c));
  memset(c, 0, sizeof(*c));
  gpr_ref_init(&c->refs, 1);
  return c;
}

void grpc_resolver_result_ref(grpc_resolver_result* c) { gpr_ref(&c->refs); }

void grpc_resolver_result_unref(grpc_exec_ctx* exec_ctx,
                                grpc_resolver_result* c) {
  if (gpr_unref(&c->refs)) {
    if (c->lb_policy != NULL) {
      GRPC_LB_POLICY_UNREF(exec_ctx, c->lb_policy, "resolver_result");
    }
    gpr_free(c);
  }
}

void grpc_resolver_result_set_lb_policy(grpc_resolver_result* c,
                                        grpc_lb_policy* lb_policy) {
  GPR_ASSERT(c->lb_policy == NULL);
  if (lb_policy) {
    GRPC_LB_POLICY_REF(lb_policy, "resolver_result");
  }
  c->lb_policy = lb_policy;
}

grpc_lb_policy* grpc_resolver_result_get_lb_policy(grpc_resolver_result* c) {
  return c->lb_policy;
}