Jason Zaman 055cc407fc run_init: Use a ring buffer in open_init_pty ... open_init_pty uses select() to handle all the file descriptors. There is a very high CPU usage due to select() always returning immediately with the fd is available for write. This uses a ring buffer and only calls select on the read/write fds that have data that needs to be read/written which eliminates the high CPU usage. This also correctly returns the exit code from the child process. This was originally from debian where they have been carrying it as a patch for a long time. Then we got a bug report in gentoo which this also happens to fix. The original debian patch had the ring buffer written in C++ so I modified the class into a struct and some static methods so it is C-only at the request of Steve Lawrence. Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=474956 Gentoo bug: https://bugs.gentoo.org/show_bug.cgi?id=532616 Signed-off-by: Jason Zaman <jason@perfinion.com> Tested-by: Laurent Bigonville <bigon@bigon.be>		2015-03-30 10:53:41 -04:00
..
Makefile	policycoreutils: Create correct man directory for run_init manpages	2013-10-16 15:02:57 -04:00
open_init_pty.8
open_init_pty.c	run_init: Use a ring buffer in open_init_pty	2015-03-30 10:53:41 -04:00
run_init.8
run_init.c	run_init: fix open_init_pty avaibility check	2015-03-30 10:51:58 -04:00
run_init.pamd	Give people who use run_init or newrole an indicator to make it not ask for passwords	2013-10-24 13:58:39 -04:00