Linux Socket Programming by example-the 18th chapter combat

The 18th chapter mainly introduces a software practice project.

Architecture: C/S

Function: Implement a stock information broadcasting platform.

This code itself is of no reference value to those over 2 years of work.

The main is the software itself caused by some divergent thinking.

Recently, smart home appliances IoT Big Data digital healthcare is hot.

These devices are related to 2 networks, one based on WiFi, Ethernet LAN

One is the internet based on ISP services.

Specific structure:

Internet (remote server), ISP, Wi-Fi, smart router, WiFi, home Smart Device

If you expand your smart router into an on-premises data center with a database, the overall architecture is as follows:

Internet (remote server), ISP, Local data center, WiFi, home-Smart Device

Issues related to:

1> how smart devices communicate with on-premises data centers

The multimedia field currently has DLNA Airplay

2> how the on-premises data center synchronizes with a remote server

At present, everyone's thinking is Baidu and Jinshan each provide their own cloud client.

Frankly speaking, the user experience is not so cool.

3> How to provide a common protocol for seamless and secure sharing of data across devices

How to securely interact with the local data center via the internet after the 4> device has left the LAN.

Solve these islands of information, we can truly usher in a new era of smart cities.

At present, in the field of multimedia, talk about some of their own views.

At the moment, I've got a bunch of software on my cell phone and tablet, and frankly, it makes me uncomfortable.

I am looking for the following features:

I want to see the movie xxx---a app to send a request to the local data center via mobile phone

Local center After receiving my instructions, search for the local multimedia data warehouse and some words directly to me to push the data, and record my current behavior

Put down your phone, turn on the TV, go through the Local data center, know I'm watching a movie now, provide the resume function

If the local data center does not have the movie, the local data center through my configuration (Telecom IPTV, Thunderbolt account, Sohu account, Baidu and other free film platform)

Search and download movies--format conversion--push movie to phone--turn on your TV or player and continue playing.

This is really looking forward to the intelligent era, rather than open a thunderbolt, first give you a spam page, and so you find half a day, and then put a piece of spam ads,

Finally, put down your phone, turn on the TV, and make a round again.

Frankly speaking, I can't see where the intelligence is!