* **Asynchronous Code**
* **`async` and `await`**
* **Coroutines**

## Asynchronous Code { #asynchronous-code }

Asynchronous code just means that the language 💬 has a way to tell the computer / program 🤖 that at some point in the code, it 🤖 will have to wait for *something else* to finish somewhere else. Let's say that *something else* is called "slow-file" 📝.

      for (int direction : new int[] {1, -1}) {
        double d = Double.longBitsToDouble(Double.doubleToLongBits(Math.scalb(1.0, i)) + direction);
        // Math.nextUp/nextDown
        if (d != Math.rint(d)) {
          fractionalBuilder.add(d);
        }
      }
    }
    for (double d :
        Doubles.asList(
            0,
            1,
            2,
            7,
            51,

		}
		for set, files := range distrib {
			fmt.Println("Set:", set+1, "Objects:", len(files))
			if !verbose {
				continue
			}
			for _, s := range files {
				fmt.Printf("\t%s\n", s)
			}
		}
		os.Exit(0)
	}

	if object == "" {
		log.Fatalln("object name is mandatory")
	}

	if shards != 0 {

## Open & import the project

In your IDEA, `File` - `Open`, select `.teamcity/pom.xml`, `import as project`, and you'll have a Maven project.

## Project structure

Mostly a standard Maven project structure. The entry point `settings.kts` defines the TeamCity project.

There are 3 subprojects in the TeamCity project hierarchy: `Check` for Gradle builds, `Promotion` for releasing Gradle versions, `Util` for miscellaneous utilities.

 *           // Services have been initialized and are healthy, start accepting requests...
 *         }
 *         public void failure(Service service) {
 *           // Something failed, at this point we could log it, notify a load balancer, or take
 *           // some other action.  For now we will just exit.
 *           System.exit(1);
 *         }
 *       },
 *       MoreExecutors.directExecutor());
 *

a bucket `bucket1` created on current MinIO instance will be accessible as `bucket1.domain.com`, and the DNS entry for
`bucket1.domain.com` will point to IP address set in `MINIO_PUBLIC_IPS`.

- This field is mandatory for standalone and erasure code MinIO server deployments, to enable federated mode.

## Code size { #code-size }

This example might seem verbose. Keep in mind that we are mixing security, data models, utility functions and *path operations* in the same file.

But here's the key point.

The security and dependency injection stuff is written once.

And you can make it as complex as you want. And still, have it written only once, in a single place. With all the flexibility.

				for _, t := range convertibleTypes {
					if rv.Type().ConvertibleTo(t) {
						convertParams(rv.Convert(t).Interface(), idx)
						return
					}
				}
				vars[idx] = escaper + strings.ReplaceAll(fmt.Sprint(v), escaper, escaper+escaper) + escaper
			}
		}
	}

	for idx, v := range avars {
		convertParams(v, idx)
	}

	if numericPlaceholder == nil {
		var idx int
		var newSQL strings.Builder

RUN groupadd -g 1001 buildslave && useradd -m -u 1001 -g buildslave buildslave
RUN mkdir -p /tf/venv
RUN chown -R buildslave:buildslave /tf

# All lines past this point are reset when $CACHEBUSTER is set. We need this
# for Python specifically because we install some nightly packages which are
# likely to change daily.
ARG CACHEBUSTER=0
RUN echo $CACHEBUSTER

# Setup build and environment

```

## Canceling a decommission

Stop an on-going decommission in progress, mainly used in situations when the load may be too high and you may want to schedule the decommission at a later point in time.

`mc admin decommission cancel` without an argument, lists out any on-going decommission in progress.

```
λ mc admin decommission cancel alias/