[Lazarus] thread safe

[Henry Vermaak]

On 27/06/11 23:31, Andrew Brunner wrote:
>
> 2.) Execution Order.  A critical section does not protect or ensure
> that code will be executed in any particular order.  This is where

How do you know this?  Unfortunately I can't read the code for the 
Windows critical sections and the documentation doesn't explicitly state 
anything, but at least pthread mutex guarantees a memory barrier.  So if 
you're using the fpc rtl critical sections on unix (which uses 
pthread_mutex), your statement is false.

You'll have to read the generated assembler for Windows critical 
sections.  My hunch would be that they use memory barriers, too.

Henry