News for hackers. Stuff that matters.

A comment on This shouldn't have happened: A vulnerability postmortem. Parent comment

Re:This shouldn't have happened: A vulnerability postmortem by alophawen on Thursday December 02, 2021 @02:36AM (#29413506)
This is true, but for performance's sake, you should not alloc/free in a busy loop, especially not on a real time system.

Allocate in advance, reuse allocated memory.

[ Parent | on HN ]
Re:This shouldn't have happened: A vulnerability postmortem by titzer on Monday December 06, 2021 @08:54AM (#29459733)
> Allocate in advance, reuse allocated memory.

In practice, almost all real-time systems use this strategy, even going so far as to allocate all memory at compile time. The first versions of Virgil (I and II) used this strategy and compiled to C.

When doing this, the whole debate of memory safe (automatic) vs unsafe (manual) is completely orthogonal.

[ Parent | on HN ]