113 lines
3.5 KiB
Groff
113 lines
3.5 KiB
Groff
.\" Copyright (c) 2007-2008 Roy Marples
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.Dd Mar 16, 2008
|
|
.Dt RC_DEPTREE 3 SMM
|
|
.Os OpenRC
|
|
.Sh NAME
|
|
.Nm rc_deptree_update , rc_deptree_update_needed , rc_deptree_load ,
|
|
.Nm rc_deptree_depend , rc_deptree_depends , rc_deptree_order ,
|
|
.Nm rc_deptree_free
|
|
.Nd RC dependency tree functions
|
|
.Sh LIBRARY
|
|
Run Command library (librc, -lrc)
|
|
.Sh SYNOPSIS
|
|
.In rc.h
|
|
.Ft bool Fn rc_deptree_update void
|
|
.Ft bool Fn rc_deptree_update_needed void
|
|
.Ft RC_DEPTREE Fn rc_deptree_load void
|
|
.Ft "RC_STRINGLIST *" Fo rc_deptree_depend
|
|
.Fa "const RC_DEPTREE *deptree"
|
|
.Fa "const char *type"
|
|
.Fa "const char *service"
|
|
.Fc
|
|
.Ft bool Fo rc_deptree_depends
|
|
.Fa "const RC_DEPTREE *deptree"
|
|
.Fa "const char *const *types"
|
|
.Fa "const char *const *services"
|
|
.Fa "const char *runlevel"
|
|
.Fa "int options"
|
|
.Fc
|
|
.Ft "RC_STRINGLIST *" Fo rc_deptree_order
|
|
.Fa "const RC_DEPTREE *deptree"
|
|
.Fa "const char *runlevel"
|
|
.Fa "int options"
|
|
.Fc
|
|
.Ft void Fn rc_deptree_free "RC_DEPTREE *deptree"
|
|
.Sh DESCRIPTION
|
|
These functions provide a means of querying the dependencies of OpenRC
|
|
services.
|
|
.Pp
|
|
.Fn rc_deptree_update
|
|
updates the service dependency tree, normally
|
|
.Pa /lib/rc/init.d/deptree .
|
|
.Fn rc_deptree_update_needed
|
|
checks to see if the dependency tree needs updated based on the mtime of it
|
|
compared to
|
|
.Pa /etc/init.d ,
|
|
.Pa /etc/conf.d ,
|
|
.Pa /usr/local/etc/init.d ,
|
|
.Pa /usr/local/etc/conf.d ,
|
|
.Pa /etc/rc.conf
|
|
and any files specified by a service.
|
|
.Pp
|
|
.Fn rc_deptree_load
|
|
loads the deptree and returns a pointer to it which needs to be freed by
|
|
.Fn rc_deptree_free
|
|
when done.
|
|
.Pp
|
|
.Fn rc_deptree_depend ,
|
|
.Fn rc_deptree_depends
|
|
and
|
|
.Fn rc_deptree_order
|
|
return a list of services from the
|
|
.Fa deptree
|
|
based on the
|
|
.Fa type
|
|
or
|
|
.Fa types
|
|
of dependency.
|
|
.Fa options
|
|
can be a bitmask of
|
|
.Va RC_DEP_TRACE
|
|
and
|
|
.Va RC_DEP_STRICT .
|
|
.Va RC_DEP_TRACE
|
|
follows each services dependencies right down to the first service needed and
|
|
.Va RC_DEP_STRICT
|
|
only lists services actually needed or in the
|
|
.Va runlevel .
|
|
.Sh IMPLEMENTATION NOTES
|
|
Each function that returns
|
|
.Fr "RC_STRINGLIST *"
|
|
should be freed by calling
|
|
.Fn rc_stringlist_free
|
|
when done.
|
|
.Sh SEE ALSO
|
|
.Xr malloc 3 ,
|
|
.Xr free 3 ,
|
|
.Xr rc_stringlist_free 3 ,
|
|
.Xr runscript 8
|
|
.Sh AUTHORS
|
|
.An Roy Marples <roy@marples.name>
|