Hi,
Will there be duplication of all threads OR a new process with only one thread be created for a fork call by a thread in a process ?
Thx in advans, Karthik Balaguru
Duplication of all threads or A new process with only one thread
May 02, 2008
6 Replies
I got the below info from
formatting link
" The POSIX 1c standard defines a thread calling fork() to duplicate only the calling thread in the new process; and an execve() from a thread would stop all threads of that process."
Thx, Karthik Balaguru
OOps ?!?!
Hence it would be impossible to spawn a new process from a multithreaded process.
How would you do this ?
-Michael
Usually, the new forked process (inheriting only one thread) is calling execve() and not the multithreaded process that calls fork() in one of its threads.
-- hns
The usual way:
fork (creates a new process with only one thread running) ->
execve (replaces the process image).
Wolfgang Draxinger
E-Mail address works, Jabber: hexarith@jabber.org, ICQ: 134682867
I see: the child created with fork is considered to be a new process and not a thread of the parent process.
That brings up the question: how to create a new thread. But don't bother, I'll be using the pthread library to do that for me :).
Thanks,
-Michael
Thanks. hat is how I had supposed it would be done. I was confused by the cited text.
-Michael
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