Page 129 - slides.dvi

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Unix
–
–
–
–
⇒
Case
Unix
Four
pid
pid
fork()
reply
Process
Study—
=
=
=
basic
vfork()
Hierarchical
nearly
fork
wait
Processes
Process
exit(status)
()
parent
process
and/or
represented
scheme:
always
primitives:
(status)
by
child
fork
a
process
COW.
Dynamics
parents
execve(pathname,
followed
execve
by
process
argv,
id
create
exec()
(pid)
envp)
children.
program executes
parent process (potentially) continues
exit

wait
zombie
process

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