/proc & xml data

/proc & xml data

[Joe]

I remember hearing about various debates about the /proc structure.  I
was wondering if anyone had ever considered storing some of the data in
xml format rather than its current format?  Things like /proc/meminfo
and cpuinfo may work good in this format as then it would be easy to
write a generic xml parser that could then be used to parse any of the
data. "MemTotal:  %8lu kB\n"

In the case of the meminfo it would be a matter of changing the lines in
fs/proc/array.c  function get_meminfo(char * buffer) from

"MemTotal:  %8lu kB\n"

to something like

"<memtotal>%8lu kB</memtotal>\n"



Joe

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Re: /proc & xml data

[Eric W. Biederman]

Joe <joeja@mindspring.com> writes:

> I remember hearing about various debates about the /proc structure.  I
> was wondering if anyone had ever considered storing some of the data in
> xml format rather than its current format?  Things like /proc/meminfo
> and cpuinfo may work good in this format as then it would be easy to
> write a generic xml parser that could then be used to parse any of the
> data. "MemTotal:  %8lu kB\n"
> 
> In the case of the meminfo it would be a matter of changing the lines in
> fs/proc/array.c  function get_meminfo(char * buffer) from
> 
> "MemTotal:  %8lu kB\n"
> 
> to something like
> 
> "<memtotal>%8lu kB</memtotal>\n"

The general consensus is that if we have a major reorganization, in proc
the rule will be one value per file.  And let directories do the grouping.

Eric
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Re: /proc & xml data

[Moritz Schulte]

ebiederm@xmission.com (Eric W. Biederman) writes:

> The general consensus is that if we have a major reorganization, in proc
> the rule will be one value per file.  And let directories do the grouping.

IIRC some time ago somebody suggested to rename 'proc' to something
like 'sys' or 'system', because it contains so many sytem information,
not only about processes; or extract all non-process-information from
proc to sys. Will this, or something like that, eventually be done
while the reorganization?

	moritz
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Re: /proc & xml data

[Olaf Titz]

> "MemTotal:  %8lu kB\n"
> to something like
> "<memtotal>%8lu kB</memtotal>\n"

The latter form offers no significant advantage over the former at
all - there is nothing that can be expressed as
 <name>value</name>
which can't also be expressed as
 name: value
or
 name=value
and the latter format is significantly easier to parse.

The only situation where XML really would be useful would be
some need of grouping, and this is done in /proc using directories.
(Which are also much easier to parse using existing standard tools.)

Olaf

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