On 30/10/2009 12:50 AM, Mark.Bravington at csiro.au
wrote:> I'm encountering problems when making lazy-loadable databases of the
output from 'parse_Rd'. The lazy-load database is of seemingly limitless
size when I try to reload it... Admittedly I am using functions that I'm not
really supposed to use, which is why this isn't a bug report, but there does
seem to be something strange going on; my code is very similar to code that
lives inside 'tools:::.install_package_Rd_objects'. The problems occur
with just-released R2.10.0 on Windows.
object.size() has problems when working on Rd objects, because it counts
every environment separately, even though they may all be references to
the same one. I haven't looked at your code, but that could be a problem.
Duncan Murdoch
>
> The examples below use files which can be found at
ftp://ftp.csiro.au/MarkBravington, but you'll obviously need to modify the
paths. The file "scrunge.Rd" is just "Rdiff.Rd" from the
'tools' package. The file "fakepack.7z" should unzip to create
a fake package with a DESCRIPTION file and a "man" directory that
contains two Rd files.
>
> Transcript of first example:
> eglist <- list( scrunge=tools:::prepare_Rd(
'd:/temp/scrunge.Rd',
> defines=.Platform$OS.type, stages='install',
warningCalls=FALSE))
> tools:::makeLazyLoadDB( eglist, 'd:/temp/ll', compress=FALSE)
> tools:::fetchRdDB( 'd:/temp/ll')
> # Error: cannot allocate vector of size 1.4 Gb
>
> The second example triggers an error with
'tools:::.install_package_Rd_objects' itself. It doesn't happen the
first time, but frequently does after the Rd files have been changed.
Transcript:
>
> # Make sure d:/temp/help/ is empty, then
> test> tools:::.install_package_Rd_objects( 'd:/temp/fakepack',
'd:/temp')
> test> tools:::fetchRdDB( 'd:/temp/help/temp')
> # All good. Next, I *removed* one of the two Rd files in
"d:/temp/fakepack/man", ...
> # ...deleted "d:/temp/help/temp*", and tried again
> test> tools:::.install_package_Rd_objects( 'd:/temp/fakepack',
'd:/temp')
> test> tools:::fetchRdDB( 'd:/temp/help/temp')
> Warning: Reached total allocation of 1535Mb: see help(memory.size)
> Warning: Reached total allocation of 1535Mb: see help(memory.size)
> Warning: Reached total allocation of 1535Mb: see help(memory.size)
> Warning: Reached total allocation of 1535Mb: see help(memory.size)
> Error: cannot allocate vector of size 1.9 Gb
> # Or on other occasions I get
> Error: internal error -3 in R_decompress1
>
> Mark Bravington
> CSIRO CMIS
> Hobart
> Australia
>
> --please do not edit the information below--
> Version:
> platform = i386-pc-mingw32
> arch = i386
> os = mingw32
> system = i386, mingw32
> status =
> major = 2
> minor = 10.0
> year = 2009
> month = 10
> day = 26
> svn rev = 50208
> language = R
> version.string = R version 2.10.0 (2009-10-26)
> Windows XP (build 2600) Service Pack 2
> Locale:
>
LC_COLLATE=English_Australia.1252;LC_CTYPE=English_Australia.1252;LC_MONETARY=English_Australia.1252;LC_NUMERIC=C;LC_TIME=English_Australia.1252
> Search Path:
> .GlobalEnv, ROOT, package:grDevices, package:ad, package:chstuff,
package:handy2, package:tweedie, package:statmod, package:handy, package:debug,
package:mvbutils, mvb.session.info, package:tools, package:tcltk, package:stats,
package:graphics, package:utils, package:methods, Autoloads, package:base
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