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runit/chpst: "change process state" utility

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It's "nice" on steroids - can set uid/gid, mem/cpu limits etc. +3.5k
This commit is contained in:
Denis Vlasenko
2006-10-03 15:57:40 +00:00
parent 7c1ed2e922
commit fe54458e46
8 changed files with 107 additions and 34 deletions
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64
include/usage.h
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@@ -215,6 +215,70 @@
"ls -l /tmp/foo\n" \
"-r--r--r-- 1 root root 0 Apr 12 18:25 /tmp/foo\n"
#define chpst_trivial_usage \
"[-vP012] [-u user[:group]] [-U user[:group]] [-e dir] " \
"[-/ dir] [-n nice] [-m bytes] [-d bytes] [-o files] " \
"[-p processes] [-f bytes] [-c bytes] prog args"
#define chpst_full_usage \
"Change the process state and run specified program.\n\n" \
"-u user[:grp] set uid and gid\n" \
"-U user[:grp] set environment variables UID and GID\n" \
"-e dir set environment variables as specified by files\n" \
" in the directory: file=1st_line_of_file\n" \
"-/ dir chroot to dir\n" \
"-n inc add inc to nice value\n" \
"-m bytes limit data segment, stack segment, locked physical pages,\n" \
" and total of all segment per process to bytes bytes each\n" \
"-d bytes limit data segment\n" \
"-o n limit the number of open file descriptors per process to n\n" \
"-p n limit number of processes per uid to n\n" \
"-f bytes limit output file size to bytes bytes\n" \
"-c bytes limit core file size to bytes bytes\n" \
"-v verbose\n" \
"-P run prog in a new process group\n" \
"-0 close standard input\n" \
"-1 close standard output\n" \
"-2 close standard error"
#define setuidgid_trivial_usage \
"account prog args"
#define setuidgid_full_usage \
"Sets uid and gid to account's uid and gid, removing all supplementary\n" \
"groups, then runs prog"
#define envuidgid_trivial_usage \
"account prog args"
#define envuidgid_full_usage \
"Sets $UID to account's uid and $GID to account's gid, then runs prog"
#define envdir_trivial_usage \
"dir prog args"
#define envdir_full_usage \
"Sets various environment variables as specified by files\n" \
"in the directory dir, then runs prog"
#define softlimit_trivial_usage \
"[-a allbytes] [-c corebytes] [-d databytes] [-f filebytes] " \
"[-l lockbytes] [-m membytes] [-o openfiles] [-p processes] " \
"[-r residentbytes] [-s stackbytes] [-t cpusecs] prog args"
#define softlimit_full_usage \
"Sets soft resource limits as specified by options, then runs prog\n" \
"\n" \
"-m n Same as -d n -s n -l n -a n\n" \
"-d n Limit the data segment per process to n bytes\n" \
"-s n Limit the stack segment per process to n bytes\n" \
"-l n Limit the locked physical pages per process to n bytes\n" \
"-a n Limit the total of all segments per process to n bytes\n" \
"-o n Limit the number of open file descriptors per process to n\n" \
"-p n Limit the number of processes per uid to n\n" \
"Options controlling file sizes:\n" \
"-f n Limit output file sizes to n bytes\n" \
"-c n Limit core file sizes to n bytes\n" \
"Efficiency opts:\n" \
"-r n Limit the resident set size to n bytes. This limit is not\n" \
" enforced unless physical memory is full\n" \
"-t n Limit the CPU time to n seconds. This limit is not enforced\n" \
" except that the process receives a SIGXCPU signal after n seconds\n" \
"\n" \
"Some options may have no effect on some operating systems\n" \
"n may be =, indicating that soft limit should be set equal to hard limit"
#define chroot_trivial_usage \
"NEWROOT [COMMAND...]"
#define chroot_full_usage \