static void dns_channel_saw_error(grpc_resolver *resolver, struct sockaddr *sa,
int len) {
dns_resolver *r = (dns_resolver *)resolver;
gpr_mu_lock(&r->mu);
if (!r->resolving) {
dns_start_resolving_locked(r);
}
gpr_mu_unlock(&r->mu);
}
static void dns_channel_saw_error(grpc_exec_ctx *exec_ctx,
grpc_resolver *resolver) {
dns_resolver *r = (dns_resolver *)resolver;
gpr_mu_lock(&r->mu);
if (!r->resolving) {
dns_start_resolving_locked(r);
}
gpr_mu_unlock(&r->mu);
}
static void dns_next(grpc_resolver *resolver,
grpc_client_config **target_config,
grpc_iomgr_closure *on_complete) {
dns_resolver *r = (dns_resolver *)resolver;
gpr_mu_lock(&r->mu);
GPR_ASSERT(!r->next_completion);
r->next_completion = on_complete;
r->target_config = target_config;
if (r->resolved_version == 0 && !r->resolving) {
dns_start_resolving_locked(r);
} else {
dns_maybe_finish_next_locked(r);
}
gpr_mu_unlock(&r->mu);
}
static void dns_on_retry_timer(grpc_exec_ctx *exec_ctx, void *arg,
bool success) {
dns_resolver *r = arg;
gpr_mu_lock(&r->mu);
r->have_retry_timer = false;
if (success) {
if (!r->resolving) {
dns_start_resolving_locked(r);
}
}
gpr_mu_unlock(&r->mu);
GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "retry-timer");
}
static void dns_on_retry_timer(grpc_exec_ctx *exec_ctx, void *arg,
grpc_error *error) {
dns_resolver *r = arg;
gpr_mu_lock(&r->mu);
r->have_retry_timer = false;
if (error == GRPC_ERROR_NONE) {
if (!r->resolving) {
dns_start_resolving_locked(exec_ctx, r);
}
}
gpr_mu_unlock(&r->mu);
GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "retry-timer");
}
static void dns_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
grpc_channel_args **target_result,
grpc_closure *on_complete) {
dns_resolver *r = (dns_resolver *)resolver;
gpr_mu_lock(&r->mu);
GPR_ASSERT(!r->next_completion);
r->next_completion = on_complete;
r->target_result = target_result;
if (r->resolved_version == 0 && !r->resolving) {
gpr_backoff_reset(&r->backoff_state);
dns_start_resolving_locked(exec_ctx, r);
} else {
dns_maybe_finish_next_locked(exec_ctx, r);
}
gpr_mu_unlock(&r->mu);
}