From: Martijn Tonies (m.toniesupscene.com)
Date: Tue Apr 07 2009 - 10:17:58 CDT

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Alex,

Please respond to the list instead of my personal address.

Nevertheless, if MYSQL_TYPE_LONG is the datatype for a table field,
it would always -have- to be the same size, cause different clients can
connect (if not being embedded), wouldn't it?

With regards,

Martijn Tonies
Upscene Productions
http://www.upscene.com

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  Hi Martijn,

  I made an embedded mysql server. The API for the clients to my server use the standard mysql client C API. If clients pass bad pointers to the server I don't want the server to crash. So the server knows about all valid mysql connections. If a bad mysql pointer is passed in, it can detect that. So when I save valid pointers when a connection is made I like to save it as a MYSQL_TYPE_LONG. The client and the server has to run on similar type machines. 64bit client with 64bit server and 32bit client with 32bit server, no mismatch. The Long size in a 32bit machine is 4 bytes but in a 64bit machine is 8 bytes. So I wanted to avoid conditionals for building for a 64bit machine.

  On Tue, Apr 7, 2009 at 10:49 AM, Martijn Tonies <m.toniesupscene.com> wrote:

      What is the size of MYSQL_TYPE_LONG in a 64bit machine? I am trying to save
      pointers. If this type is 4 bytes on a 32bit machine and 8 bytes on a 64bit
      machine will make it much easier.

    Ehm, wouldn't that like, totally fail if -saved- by a 64bit machine and -read- by
    a 32bit machine if that were the case?

    Perhaps you should explain in more detail what you're trying to do?

    With regards,

    Martijn Tonies
    Upscene Productions
    http://www.upscene.com

    Download Database Workbench for Oracle, MS SQL Server, Sybase SQL
    Anywhere, MySQL, InterBase, NexusDB and Firebird!

    Database questions? Check the forum:
    http://www.databasedevelopmentforum.com

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