[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: posix_spawn (or vfork) support?
|
From: |
Chet Ramey |
|
Subject: |
Re: posix_spawn (or vfork) support? |
|
Date: |
Fri, 16 Jun 2023 16:34:43 -0400 |
|
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.12.0 |
On 6/15/23 8:32 PM, Sam James wrote:
Hi,
Sorry if this has come up before - I did take a look and couldn't find
anything.
Could bash use posix_spawn/vfork instead of the rather heavyweight
fork?
I haven't looked at them. Bash does more work between fork and exec than
the posix_spawn implementations I've looked at can manage, so it's not a
real win. I've never looked at vfork because there are a lot of assumptions
baked into the code that the child has its own copies of variables and
other data.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/