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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for March 6th, 2019

Smart Pointers code that compiles in FPC and Delphi

Posted by jpluimers on 2019/03/06

Delphi and FPC have different language boundaries, so it is always good to read a thread discussing how to get near-the-edge cases work in both.

This case is about Smart Pointers (here called auto pointers, maybe because auto_ptr is what they used to be called in C++): [WayBack] Hi all, I am trying to make a certain piece of code cross compile between Delphi and FPC. On FPC, it compiles fine but on Delphi I get a [dcc32 Error] P… – Ugochukwu Mmaduekwe – Google+

In the end if comes down to that Delphi does not allow forward-declaration of records (it does for interfaces and classes), but that you do not need a __PAutoPtr_T = ^__TAutoPtr_T, because you can use ^__TAutoPtr_T in parameters.

In Spring4D, they are called Shared/IShared/TShared, see my comment:

Note that since these are reference counted, you might want to call them shared_ptr. If you enforce the single-instance behaviour, observe that in C++ they are now called uniqe_ptr.

In Spring4D this rename has already taken place a while ago: https://bitbucket.org/sglienke/spring4d/commits/e252b81fd3788cf5b82588721f68d00c892deb87

–jeroen

Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | 2 Comments »

Installing Let’s Encrypt Free SSL/TLS Certificate in 2 Minutes with Certbot, Spending Hours Making it Work with Cloudflare

Posted by jpluimers on 2019/03/06

If I ever need to get LetsEncrypt to work with CloudFlare, then I need to read [WayBackInstalling Let’s Encrypt Free SSL/TLS Certificate in 2 Minutes with Certbot, Spending Hours Making it Work with Cloudflare

The steps there should save me hours.

Via [WayBcack] Free Let’s Encrypt SSL/TLS certificates are even easier to install than self-signed certificates. I could do so in 2 minutes in my +Linode … – Jean-Luc Aufranc – Google+.

–jeroen

Posted in Encryption, Let's Encrypt (letsencrypt/certbot), Power User, Security | Leave a Comment »

ESXi 6.5: change the host name in the “new” vSphere HTML5 Web Client, or using DHCP option 12

Posted by jpluimers on 2019/03/06

With the removal of the C# based Windows vSphere Client in ESXi 6.5, the vSphere HTML5 Web Client is the way to go.

It doesn’t cover all functionality yet, and some functionality is in different places in the UI, so below the steps to change the hostname.

Since I prefer a central location of name and address management, I’ve also documented on how to do this with DHCP option 12.

Oh: I’m not alone in finding the changed place

Before I begin, some background reading on DHCP Options as I plan to do more with that in the future:

Read the rest of this entry »

Posted in Development, ESXi6.5, Power User, RouterOS, Scripting, Software Development, Virtualization, VMware, VMware ESXi | Leave a Comment »

 
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