git-svn-id: http://root.cern.ch/svn/root/trunk@24490 27541ba8-7e3a-0410-8455-c3a389f83636

    SendStreamerInfos()
    SendProcessIDs()
move the recv streamer info and recv process id code into:
    RecvStreamerInfos()
    RecvProcessIDs()
Add support for schema evolution and process ids also to TPSocket and
TXSocket.


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   Add possibility to allow connections based on the UNIX group.
   Users are accepted if members of the groups specified by

   xpd.allowedgroups group1,group2,...

   or if explicitely authorized via

   xpd.allowedusers usr1,usr2,...

   By default all UNIX groups are authorized. The 'xpd.allowedusers' can now also be used
   to deny access to a user by prefixing the username with '-'.

   For example, if 'usrgrp1' belongs to group 'grp1' and 'usrgrp2' to group 'grp2', the
   following settings

   xpd.allowedgroups grp1
   xpd.allowedusers -usrgrp1,usrgrp2

   will accept connection from any member of 'grp1' but 'usrgrp1', and from 'usrgrp2',
   even though the latter does not belong to group 'grp1'.


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   Make Process() return 0 on success (instead of 1) so that additional requests,
   if present, are processed right-away. Solves rare problem with multiple workers
   using the same physical connection.


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during file moving.


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   From Jan-Fiete:
    - Always read the group config file
    - Enforce GBytes by default for quota definitions
    - Define and use a variable for the product (1024 * 1024 * 1024)


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   Import fixes / new functionality from branches/dev/proof:

   - proof/proofplayer/src/TPacketizerAdaptive.cxx
      Implement the classic strategy of the TPacketizer in TPacketizerAdaptive.
      The strategy can be changed from adaptive (default) to TPacketizer with:
      "PROOF_PacketizerStrategy" parameter to PROOF

   - proof/proofplayer/src/TProofPlayer.cxx
      Fixed error messages for 'MissingFiles' and 'FailedPackets' lists.
      Improve fault detection by creating a list of failed packets upon a mismatch
      in the expected and actual number of processed events; the list is added to
      the output list.

   - proof/proofplayer/src/TVirtualPacketizer.cxx
      Make sure that something has been processed before setting kIsDone.
      Improve fault detection by creating a list of failed packets upon a mismatch
      in the expected and actual number of processed events; the list is added to
      the output list.

   - proof/proofplayer/inc/TVirtualPacketizer.h
      Improve fault detection by creating a list of failed packets upon a mismatch
      in the expected and actual number of processed events; the list is added to
      the output list.

   - proof/proofplayer/inc/TPacketizerAdaptive.h
      Implement the classic strategy of the TPacketizer in TPacketizerAdaptive

   - proof/proof/src/TProofServ.cxx
      Fixes:
       + option string: "stageOnly" --> "stagedOnly".
       + add parenthesis to avoid a warning after the previous patch.
       + remove the objects added to the missingFiles in TDSet::Add from the 'dataset'
         before deleting it
       + fixed an error HandleCheckFile ('kPROOF_WorkDir' instead of 'kPROOF_PackDir').
       + make fCacheDir and fPackageDir controllable via directive
       + in TProofServ::ErrorHandler: do not create the related additional buffer if
         not logging to syslog
      Added functionality:
       - add possibility to flag an "Info" message as service message using
         the prefix "|Svc" in the location field; e.g.

            Info("SetupCommon|Svc", "Test of SvcMsg");

         will produce something like

            09:28:24  6892 Mst-0 | SvcMsg in <TXProofServ::SetupCommon>: Test of SvcMsg

         This is needed to be able in the future to filter-out messages needed
         by some services (e.g. the forthcoming memory checker) which should not be
         displayed by default.

   - proof/proofd/src/XrdProofSched.cxx
      Improve the calculation of the number of workers to assign by using fMinForQuery
      as a minimum.
      Fix the length of method separators.
      Fix signed/unsigned warning.


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if the object corresponding to the current key is deriving from TCollection it means that it was written with kSingleKey option so it has to be written after merging with the same option. Otherwise one gets weird results when merging lists of histograms.


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Corrections for effc++ in root


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- move TFileMerger from proof/proofplayer to io/io.
- move TGeoOverlap from geom/geompainter to geom/geom.
as they are indepedent of the packages they were in.
It will also facilitate upcoming packaging for deb and rpm.


git-svn-id: http://root.cern.ch/svn/root/trunk@23880 27541ba8-7e3a-0410-8455-c3a389f83636

(once by the call to target->SaveSelf in TFileMerger::Mergerecursive and once
by calling fOutputFile->Write)


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this should make the W3C validator happy.


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The objects added to the missingFiles in TDSet::Add have to be removed from
the 'dataset' before deleting it.


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Fixes for gcc4.3


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   Extend support for size definition via suffix (e.g. 50M for 50 MBytes) to
   group quotas. A static function ToBytes has been introduced to avoid code
   duplications. Supported suffix are (case insensitive): k (kilo), m (mega),
   g (giga), t (tera) and  p (peta).


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The heavy version of TQueryResult must be removed after having being saved and the light object is created


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