git-svn-id: http://root.cern.ch/svn/root/trunk@23458 27541ba8-7e3a-0410-8455-c3a389f83636

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Slight doc update.


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- The implementation of TFile throughput and info sending was
  just sending 'regular' samples about the activity of the single TFile
  instance that happened to trigger an activity in the right moment.
- Now TMonaLisaWriter keeps internally track of every activity
  and regularly sends summaries valid for all the files which had
  activity in the last time interval.
- Additionally, it's now finalized the infrastructure able to measure
  and keep track of the file Open latency. A packet is sent for each
  successful Open, sending the measures of the latencies for the
  various phases of the open. Currently exploited fully by TAlienFile
  and TXNetFile. Easy to report from other TFiles too.
- Now, the hook for the Close() func triggers sending of a packet
  containing various information about the performance related to that
  file only.
- Added support also for performance monitoring when writing


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castor, chrip, dcache, gfal, io, rfio, sql, xml


git-svn-id: http://root.cern.ch/svn/root/trunk@23122 27541ba8-7e3a-0410-8455-c3a389f83636

Complete the patch for the locality check (some part got lost at some point).


git-svn-id: http://root.cern.ch/svn/root/trunk@23094 27541ba8-7e3a-0410-8455-c3a389f83636

Temporarily unset the kIsReferenced bit before cloning the object in order to avoid the (incorrect/unwanted) registration of the clone


git-svn-id: http://root.cern.ch/svn/root/trunk@23057 27541ba8-7e3a-0410-8455-c3a389f83636

Avoid mistaking a Foreign class for which the StreamerInfo? has not yet been built for a class coming from a ROOT file written by ROOT v2 or less. In particular this could lead to a unwanted call to TStreamerInfo?::BuildEmulated in the case where the object is being read from a TBuffer not attached to a TFile (TMessage for example) and lead to a Fatal error.


git-svn-id: http://root.cern.ch/svn/root/trunk@23046 27541ba8-7e3a-0410-8455-c3a389f83636

class, we now use the highest possible class version as the current
version of the class.  Practically, we update the class version
when reading new (higher versioned) StreamerInfo until the Class
is actually used (i.e. TClass::GetClassVersion is call directly
or indirectly).

In particular, if a file has several StreamerInfos for the same
versioned class, we will use the highest version number as the
'current' class version (as opposed to the lowest until now).


git-svn-id: http://root.cern.ch/svn/root/trunk@23002 27541ba8-7e3a-0410-8455-c3a389f83636

the on-file StreamerInfo not only to the current value of the class checksum
but also to the checksum calculated using the older algorithms.

This patch extends this test to also be done when comparing 2 on-file StreamerInfo.

This is implemented via a new function TStreamerInfo::GetCheckSum(UInt_t) which
re-implement the TClass::GetCheckSum algorithms using the TStreamerElements 
instead of the RealData information.  [Note that due to slight different in 
class naming convention, the 2 methods are not completely interchangeable].

This removes spurrious warning message when loading 2 older files which
were written with 2 different version of the TClass CheckSum algorithm
(and the in-memory class's version is greater than both TStreamerInfos'
class version).


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        TTree, TH1, TEventList, TEntryList, TGraph2D
(and hence their derived classes).

The instances of those classes are now added automatically 
to the current directory only when Constructe'd with arguments or Clone'd
and to the directory they are read from when their are stored
directly in a TKey. [Note: the default constructor never adds
the object to the current directory]

The directory auto add can still be disabled for instance
of TH1 and TGraph2D by setting TH1::AddDirectory.

Additionally one can disable the directory auto add for
a specific class by doing:

    TClass::GetClass("myclass")->SetDirectoryAutoAdd(0)

However you might want to also be able to restore the
behavior in which case you ought to do:

    TClass *cl = TClass::GetClass("myclass");
    ROOT::DirAutoAdd_t func = cl->GetDirectoryAutoAdd();
    cl->SetDirectoryAutoAdd(0);

TROOT::ReadingObject is marked as deprecated.. It is still
set (as it was) but is no longer used by the above mention
classes.

NOTE:  One side effect of this change, is that instnace 
of TTree, TH1, TEventList, TEntryList, TGraph2D that are
retrieved from a TMessage (i.e. from a socket) no longer
auto register themselves to the current ROOT directory.

Add a new optional parameter to TDirectory::Append: 'replace'
If replace is true (the default is false), the Append will
first remove from the directory any existing object and
print the message:

   Replacing existing OldClass: thename (Potential memory leak).

Add a new option parameter to TDirectory::CloneObject: 'autoadd'
If autoadd is true (the default), CloneObject will call the
object 'DirectoryAutoAdd' function (if any)

In TDirectory::CloneObject add support for multiple inheritance
from TObject where TObject is not the left most base class.

Fix memory leak in TGraph2D::operator= (and add TGraph2D::Clear)

Cleanup some documentation


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In MakeProject properly test whether a StreamerElement describe a base class (stl container were not handled correctly


git-svn-id: http://root.cern.ch/svn/root/trunk@22953 27541ba8-7e3a-0410-8455-c3a389f83636

is _not_ optimized.

Repair a few place where TStreamerInfo was wasting some space when the 
streamed collection was empty.  Increase TStreamerInfo version to 7 to 
distinguish the old and new cases.

Rename TCollectionProxyInfo::Environ::delete_temp to use_temp to clarify code/semantic
and fix its use to properly manage the life time of the temporary used (necessary in
the case of memberwise streaming (in non-split mode)).


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and reduce the span of those that are still compulsory
(hence aiding threadsafety)


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Call ./MAKEP (rather than MAKEP) to lift the requirement to have . in PATH for MakeProject


git-svn-id: http://root.cern.ch/svn/root/trunk@22648 27541ba8-7e3a-0410-8455-c3a389f83636

just call TFile::Open() recursively on the path GetFileAndOptions()
(instead of the TFile constructor) in the case no dedicated plug-in is found.
This fixes a problem with opening "srm://srm.cern.ch//castor/..." and
"/castor/..." as reported by Atlas.


git-svn-id: http://root.cern.ch/svn/root/trunk@22591 27541ba8-7e3a-0410-8455-c3a389f83636

detailed monitoring of file open stages in TXNetFile and TAlienFile.
Requested by ALICE to track where the time is spent waiting for a file to
open (in xrootd, in Castor, in Alien, etc.).


git-svn-id: http://root.cern.ch/svn/root/trunk@22556 27541ba8-7e3a-0410-8455-c3a389f83636

and xrootd.


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ROOT can not be compiled with gcc-4.3.
Some ROOT source files doesn't contain required #include directives,
for example, they use strlen(), but #include <string.h> is missed or
malloc() is used and #include <stdlib.h> is missed. 

Earlier versions of gcc allowed some headers to be included implicitly,
but issued a warning (-Wimplicit-function-declaration). Newer one,
gcc-4.3 denies such silly behaviour: all required headers must be explicitly
included. 

Attached patch fixes this. Also it fixes another issue, which disallows
ROOT to compile under gcc-4.3: C functions don't belong to namespace std,
so expressions like std::memcpy() are no longer valid and plain memcpy()
should be used instead.


git-svn-id: http://root.cern.ch/svn/root/trunk@22419 27541ba8-7e3a-0410-8455-c3a389f83636

Correct the logic that is avoiding the storing of TStreamerInfo for std::string
and the STL collection in ForceWriteInfo.  Now ForceWriteInfo always ignore the
request when the TStreamerInfo itself is for string or STL container.
The previous implementation was only ignoring the request for the TStreamerElement
that were string or STL container.
In addition, the previous implementation was overzealous and was inadvertently 
ignoring the request for TStreamerElement pointing at any class containing the
STL container names AND any class which had :: in them.  In particular this
meant that slow CloneTree was (fataly) missing the copy of the TStreamerInfo
for class that are part of the TTree but had only a base and no member or in 
some cases where it had only object data members.


git-svn-id: http://root.cern.ch/svn/root/trunk@22358 27541ba8-7e3a-0410-8455-c3a389f83636

add optimizations in TFile::Cp() for netx and add extra error handling to
make the routine more robust.


git-svn-id: http://root.cern.ch/svn/root/trunk@22278 27541ba8-7e3a-0410-8455-c3a389f83636

Extend support of TStreamerInfo::ReadValueAux to 'converted' numerical types, hence solving TTree::Draw's schema evolution problem (see http://root.cern.ch/phpBB2/viewtopic.php?t=6225)


git-svn-id: http://root.cern.ch/svn/root/trunk@22276 27541ba8-7e3a-0410-8455-c3a389f83636

patch, which avoids an infinite loop under certain error conditions
during the file open procedure via a local cache read.


git-svn-id: http://root.cern.ch/svn/root/trunk@22270 27541ba8-7e3a-0410-8455-c3a389f83636

Fix compilation on platform where R__BROKEN_FUNCTION_TEMPLATE is defined (includes at least older Macs)


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   * TStreamerInfo: TPointerCollection adapter class and access methods
     added to enable handling collections of pointers with existing
     Read|WriteBuffer code

   * TCollectionProxy: check if the proxy was initialized when
     calling HasPointers


git-svn-id: http://root.cern.ch/svn/root/trunk@21862 27541ba8-7e3a-0410-8455-c3a389f83636

this patch prevents all dictionaries from being rebuild when non dict related
changes are made in CINT. When the dictionaries change the new
cint/inc/cintdictversion.h must be updated which triggers a dictionary
rebuild. For example:
touch cint/src/v6_var.cxx && make: rebuild no dictionaries
touch cint/inc/cintdictversion.h && make: rebuild all dictionaries
touch utils/src/rootcint.cxx && make: rebuild all dictionaries


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