Date: Sat, 13 Jun 2009 21:17:45 +0000 (UTC) From: Jilles Tjoelker <jilles@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/bin/sh eval.c eval.h input.c input.h main.c Message-ID: <200906132118.n5DLI81N078727@repoman.freebsd.org>
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jilles 2009-06-13 21:17:45 UTC
FreeBSD src repository
Modified files:
bin/sh eval.c eval.h input.c input.h main.c
Log:
SVN rev 194128 on 2009-06-13 21:17:45Z by jilles
Avoid leaving unnecessary waiting shells in many forms of sh -c COMMAND.
This change only affects strings passed to -c, when the -s
option is not used.
The approach is to check if there may be additional data
in the string after parsing each command. If there is none,
use the EV_EXIT flag so that a fork may be omitted in
specific cases.
If there are empty lines after the command, the check will
not see the end and forks will not be omitted. The same
thing seems to happen in bash.
Example:
sh -c 'ps lT'
No longer shows a shell process waiting for ps to finish.
PR: bin/113860
Reviewed by: stefanf
Approved by: ed (mentor)
Revision Changes Path
1.61 +11 -8 src/bin/sh/eval.c
1.13 +5 -0 src/bin/sh/eval.h
1.24 +17 -0 src/bin/sh/input.c
1.10 +1 -0 src/bin/sh/input.h
1.31 +1 -1 src/bin/sh/main.c
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