*
     * @return the process ID
     */
    public int getPid() {
        return this.pid;
    }

    /**
     * Returns the starting byte offset of the lock range.
     *
     * @return the starting byte offset
     */
    public long getByteOffset() {
        return this.byteOffset;
    }

    /**
     * Returns the byte length of the lock range.
     *

I'll tell you more about container images, Docker, Kubernetes, etc. in a future chapter: [FastAPI in Containers - Docker](docker.md).

///

## Previous Steps Before Starting { #previous-steps-before-starting }

There are many cases where you want to perform some steps **before starting** your application.

For example, you might want to run **database migrations**.

But in most cases, you will want to perform these steps only **once**.

`X-`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers).

Но если у вас есть пользовательские заголовки, которые вы хотите показывать клиенту в браузере, вам нужно добавить их в настройки CORS (подробнее см. в [CORS (Cross-Origin Resource Sharing)](../tutorial/cors.md)), используя параметр `expose_headers`, описанный в [документации Starlette по CORS](https://www.starlette.dev/middleware/#corsmiddleware)....

            }

            if (logger.isDebugEnabled()) {
                logger.debug("Starting job: id={}, scriptType={}, script={}", id, scriptType, script);
            } else if (scheduledJob.isLoggingEnabled() && logger.isInfoEnabled()) {
                logger.info("Starting job: id={}", id);
            }

            final Object ret = jobExecutor.execute(Constants.DEFAULT_SCRIPT, script);

     */
    public static int size() {
        return 16; // 8 + 4 + 4
    }

    /**
     * Encode this structure to byte array
     *
     * @param dst destination buffer
     * @param dstIndex starting index
     * @return number of bytes written
     */
    public int encode(byte[] dst, int dstIndex) {
        SMBUtil.writeInt8(offset, dst, dstIndex);
        SMBUtil.writeInt4(token, dst, dstIndex + 8);

    @Override
    public SmbFileInputStream openInputStream(final int sharing) throws SmbException {
        return openInputStream(0, O_RDONLY, sharing);
    }

    @Override
    public SmbFileInputStream openInputStream(final int flags, final int access, final int sharing) throws SmbException {
        return new SmbFileInputStream(this, flags, access, sharing, false);
    }

    @Override

									valid := 0
									for shardIdx, shard := range splitFilled[:k] {
										shardConfig[shardIdx] = shard[offset]
										valid += int(shard[offset])
										if shard[offset] == 0 {
											shards[shardIdx] = shards[shardIdx][:0]
										} else {
											shards[shardIdx] = append(shards[shardIdx][:0], splitData[shardIdx][offset])
										}
									}

     * </pre>
     *
     * @param ps the PrintStream to write the hexdump output to
     * @param src the source byte array containing the data to dump
     * @param srcIndex the starting index in the source array
     * @param length the number of bytes to dump from the source array
     */

    public static void hexdump(final PrintStream ps, final byte[] src, final int srcIndex, final int length) {

These examples run the server program (e.g Uvicorn), starting **a single process**, listening on all the IPs (`0.0.0.0`) on a predefined port (e.g. `80`).

This is the basic idea. But you will probably want to take care of some additional things, like:

* Security - HTTPS
* Running on startup
* Restarts
* Replication (the number of processes running)
* Memory
* Previous steps before starting

For internal purposes, we use binary formats for their brevity.
We use the `Serializer` abstraction to separate the actual implementation of serialization from its uses.

When sharing data with external tools, we use JSON.

## Consequences

* The configuration cache serialization infrastructure should be used for all serialization.