git-svn-id: http://root.cern.ch/svn/root/trunk@39648 27541ba8-7e3a-0410-8455-c3a389f83636

when running with statically linked module on OSX.


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git-svn-id: http://root.cern.ch/svn/root/trunk@39644 27541ba8-7e3a-0410-8455-c3a389f83636

Reduce the memory used by a TTree in half.

Refactor the code reading and writing the TBasket data.
A single transient buffer holding the compressed data is 
now managed by TTree (and could be made thread local)
rather than having one per TBranch.


git-svn-id: http://root.cern.ch/svn/root/trunk@39642 27541ba8-7e3a-0410-8455-c3a389f83636

of the pthread conditions:

      // When using condition variables there is always a Boolean predicate
      // involving shared variables associated with each condition wait that
      // is true if the thread should proceed. **Spurious** wakeups from the
      // pthread_cond_timedwait() or pthread_cond_wait() functions may occur.
      // Since the return from pthread_cond_timedwait() or pthread_cond_wait()
      // does not imply anything about the value of this predicate, the
      // predicate should be re-evaluated upon such return.


git-svn-id: http://root.cern.ch/svn/root/trunk@39640 27541ba8-7e3a-0410-8455-c3a389f83636

git-svn-id: http://root.cern.ch/svn/root/trunk@39629 27541ba8-7e3a-0410-8455-c3a389f83636

Fix for bug https://savannah.cern.ch/bugs/index.php?83066


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Avoid to expand pathes that are urls. For example, don't replace '~' by the $HOME value, or ':' by ';' in urls like root://user@any.where.com:1234//~user/...


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git-svn-id: http://root.cern.ch/svn/root/trunk@39620 27541ba8-7e3a-0410-8455-c3a389f83636

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(see https://savannah.cern.ch/bugs/?83046 )


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git-svn-id: http://root.cern.ch/svn/root/trunk@39612 27541ba8-7e3a-0410-8455-c3a389f83636

Add new tutorials ( net/treeClient.C + net/fastMergeServer.C )
demonstrating how a TMemFile can be used to do parallel merge
from many client. ( TMemFile still needs to be better integrated
with TMessage and TSocket).

The new TMemFile class support the TFile interface but only store
the information in memory.   This version is limited to 32MB.

   TMessage mess;
   ... 
   mess->ReadFastArray(scratch,length);
   transient = new TMemFile("hsimple.memroot",scratch,length);

will copy the content of 'scratch' into the in-memory buffer
created by/for the TMemFile.

   TMemFile *file = new TMemFile("hsimple.memroot","RECREATE");

Will create an empty in-memory of (currently fixed) size 32MB.

   file->ResetAfterMerge(0);

Will reset the objects in the TDirectory list of objects
so that they are ready for more data accumulations (i.e.
returns the data to 0 but keep the customizations).

Introduce the new function TFileMerger::IncrementalMerge will
will Merge the list of file _with_ the content of the output
file (if any).   This allows make several successive Merge
into the same TFile object.

Introduce non-static version of TFile::Cp allows the copy of
an existing TFile object.

Introduce new explicit interface for providing reseting 
capability after a merge.  If a class has a method with 
the name and signature:

   void ResetAfterMerge(TFileMergeInfo*);

it will be used by a TMemFile to reset its objects after
a merge operation has been done.

If this method does not exist, the TClass will use
a method with the name and signature:
  
   void Reset(Optiont_t *);

TClass now provides a quick access to these merging 
function via TClass::GetResetAfterMerge.   The wrapper function
is automatically created by rootcint and can be installed
via TClass::SetResetAfterMerge.   The wrapper function should have
the signature/type ROOT::ResetAfterMergeFunc_t:

   void (*)(void *thisobj, TFileMergeInfo*);

ResetAfterMerge functions were added to the following classes:
TDirectoryFile, TMemFile, TTree, TChain, TBranch, TBranhcElement, 
TBranchClones, TBranchObject and TBranchRef.


git-svn-id: http://root.cern.ch/svn/root/trunk@39611 27541ba8-7e3a-0410-8455-c3a389f83636

Reduce cl.sh failures due to cygwin's spurious exit codes 126 by retrying cl if the first one exited with code 126.


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- From Timur:
Attempt to fix coverity's warning about mixed enums. I hope, coverity will not infer, that fSelectionBase (now it's int) is
initialized from enum and compared with another integer, which later comparent with another enum in a different file :)


git-svn-id: http://root.cern.ch/svn/root/trunk@39602 27541ba8-7e3a-0410-8455-c3a389f83636

Update the cursor position and redraw if there was (someone else's, e.g. ROOT's) output on the console.


git-svn-id: http://root.cern.ch/svn/root/trunk@39601 27541ba8-7e3a-0410-8455-c3a389f83636

re-impelment GetSeed in derived class to return first element of the seed table. Before always a fixed value was returned independent of the state


git-svn-id: http://root.cern.ch/svn/root/trunk@39600 27541ba8-7e3a-0410-8455-c3a389f83636

Reset the modifier before reading new input.
Fixes problem in cling where backspace would disable further input.


git-svn-id: http://root.cern.ch/svn/root/trunk@39596 27541ba8-7e3a-0410-8455-c3a389f83636

When drawing scatter plot for TH2 or TH2Poly do not use gRandom, but an independent random generator instance,
to avoid interfering with gRandom 
This fixes the  bug <a href="https://savannah.cern.ch/bugs/?83021" >83021</a>.
Now the same sequence is also used for the same histograms, giving therefore the same scatter plot for the same
histogram.


git-svn-id: http://root.cern.ch/svn/root/trunk@39592 27541ba8-7e3a-0410-8455-c3a389f83636

Add check for terminal foreground process group to know whether we can write (istty() is not enough), see r32454.
Fixes root -l -b script.C &


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  In TProofPlayer, make sure that TVirtualPAcketizer::HandleTimer is not called concurrently
  during 'STOP', because this can deadlock the master. Fixes an issue with 'STOP' reported by
  ALICE.


git-svn-id: http://root.cern.ch/svn/root/trunk@39585 27541ba8-7e3a-0410-8455-c3a389f83636

  Refine the part patch #37942 mapping 'localhost' to gSystem->HostName(): this is only needed
  for master-to-worker. Doing it for client-to-master breaks the use of SSH tunnels.


git-svn-id: http://root.cern.ch/svn/root/trunk@39580 27541ba8-7e3a-0410-8455-c3a389f83636

- Added the following packages: oracle, mysql, odbc, gviz, fftw, pythia6,
  pythia8, unuran, table
- Changed the default values for the build options depending on platform
  such that they display correctly with cmake-gui or ccmake
- Fixed mathmore build on Windows
- Make histfactory depending on xml option


git-svn-id: http://root.cern.ch/svn/root/trunk@39577 27541ba8-7e3a-0410-8455-c3a389f83636

Support the case where the default size for the Cache is 0 and hence no cache is created. This can happen whenever the AutoFlush mechanism is explicitly disabled when create the TTree


git-svn-id: http://root.cern.ch/svn/root/trunk@39576 27541ba8-7e3a-0410-8455-c3a389f83636

Explicitly set the default cache size to 0 when the AutoFlush is disabled (this is _not_ a behavior change)


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Include w32pragma.h from $(ROOT_SRCDIR)/build/win instead of using $(PWD) (solve problem with out of source build)
Thanks to Axel who found the issue.


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- The removal of editline option and its conditional code.
- A fix concerning the name of a couple of dictionary files detected by Bertrand.
- I have tested [git HEAD of CMake] with VS10, which by the way generated a number of warnings


git-svn-id: http://root.cern.ch/svn/root/trunk@39553 27541ba8-7e3a-0410-8455-c3a389f83636

want the existing data to be copy forward (the old behavior and the
new default is to copy the data forward).
Use this feature is TBasket::Reset to avoid a useless memcpy.


git-svn-id: http://root.cern.ch/svn/root/trunk@39551 27541ba8-7e3a-0410-8455-c3a389f83636

buffer extension policy.  This enable the ability to tweak it later
(for example instead of always doubling the size, increasing by
only at most 2Mb or take hints from the number of entries already
in a TBasket).


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