*
 * There is one global listener for the life of the build runtime.
 * Listeners must be sure to remove themselves if they want to only listen for a single build.
 *
 * Listeners are notified in registration order.
 * Started and progress notifications are emitted in registration order,
 * while finished notifications are emitted in reverse registration order.
 *

	ValidatePlugin(pluginName string, endpoint string, versions []string) error
	// RegisterPlugin is called so that the plugin can be registered by any
	// plugin consumer
	// Error encountered here can still be Notified to the plugin.
	RegisterPlugin(pluginName, endpoint string, versions []string, pluginClientTimeout *time.Duration) error
	// DeRegisterPlugin is called once the pluginwatcher observes that the socket has
	// been deleted.

    boolean isEnabled(BuildEventSubscriptions subscriptions);

    Class<DETAILS> getDetailsType();

    /**
     * Returns the trackers that are used by this mapper. If this mapper is enabled, then the trackers should be notified of
     * build operation execution. If this mapper is not enabled, the trackers can be ignored.
     */
    default List<? extends BuildOperationTracker> getTrackers() {
        return Collections.emptyList();
    }

 * limitations under the License.
 */

package org.gradle.internal.session;

import org.gradle.internal.service.scopes.EventScope;
import org.gradle.internal.service.scopes.Scope;

/**
 * A listener that is notified when a session is started and completed. No more than one session may be active at any time.
 *

	for range sig {
		// Receive signals until the sender closes sig.
	}
}

func testCancel(t *testing.T, ignore bool) {
	// Ask to be notified on c1 when a SIGWINCH is received.
	c1 := make(chan os.Signal, 1)
	Notify(c1, syscall.SIGWINCH)
	defer Stop(c1)

	// Ask to be notified on c2 when a SIGHUP is received.
	c2 := make(chan os.Signal, 1)
	Notify(c2, syscall.SIGHUP)
	defer Stop(c2)

        return singleRun;
    }

    @Override
    public void notifyOnUnhealthy(final Action<? super String> listener) {
        /*
            The semantics of this method are that the given action should be notified if the
            Daemon is going to be terminated at the end of this build.
            It is not a generic outlet for “expiry events”.

         *
         * <p>If the operation fails, build will fail with the appropriate exception. The handler won't be notified in case of failure.
         *
         * @param buildAction The action to run in the specified build phase.
         * @param handler The handler to supply the result of the given action to.

	lockWithRank(&l.lock, lockRankNotifyList)
	s := l.head
	l.head = nil
	l.tail = nil

	// Update the next ticket to be notified. We can set it to the current
	// value of wait because any previous waiters are already in the list
	// or will notice that they have already been notified when trying to
	// add themselves to the list.
	atomic.Store(&l.notify, l.wait.Load())
	unlock(&l.lock)

     * The action will be invoked at-most once during a build.
     * It will only be invoked for the build in which it was registered (i.e. not subsequent builds).
     * Each action provided to each invocation of this message will be notified.
     * <p>
     * The action receives a free-form, human friendly, string describing why the Daemon needs to be shut down.
     */
    void notifyOnUnhealthy(Action<? super String> listener);

     * thread-safe. Messages are delivered to the handler by a single thread.
     *
     * <p>A handler instance may also implement {@link org.gradle.internal.dispatch.StreamCompletion}, in which case it will be notified when no further messages will be forwarded to it.
     * This may happen because the peer has signalled that it has finished sending messages, or closes the connection, or crashes. It may also happen when