Log of /trunk/tree/tree/src/TLeafObject.cxx
Parent Directory
Revision
18667 -
(
view)
(
download)
(
as text)
(
annotate)
-
[select for diffs]
Modified
Fri May 4 17:32:45 2007 UTC (7 years, 8 months ago) by
pcanal
Original Path:
trunk/tree/src/TLeafObject.cxx
File length: 7872 byte(s)
Diff to
previous 17731
The value of TBasket:;fBasket was incorrect in some cases when using
the TTreeCloner. This is solved (and thread safetly is improved) by
removing the gBranch global variable and using alternative mechanism
to set TBakset::fBasket.
Revision
17731 -
(
view)
(
download)
(
as text)
(
annotate)
-
[select for diffs]
Modified
Tue Feb 6 15:30:25 2007 UTC (7 years, 11 months ago) by
brun
Original Path:
trunk/tree/src/TLeafObject.cxx
File length: 7851 byte(s)
Diff to
previous 17579
In the Streamer functions replace the lines like
TPad::Class()->ReadBuffer(b, this, v, R__s, R__c);
TPad::Class()->WriteBuffer(b,this);
by
b.ReadClassBuffer(TPad::Class(), this, v, R__s, R__c);
b.WriteClassBuffer(TPad::Class(),this);
Revision
7880 -
(
view)
(
download)
(
as text)
(
annotate)
-
[select for diffs]
Modified
Sat Jan 10 10:52:31 2004 UTC (11 years ago) by
brun
Original Path:
trunk/tree/src/TLeafObject.cxx
File length: 7551 byte(s)
Diff to
previous 2597
From Philippe:
This mega patch introduces a new implementation of the STL I/O
which is backward and forward compatible. In addition this is more
exactly a new implementation or an extension of the container I/O.
We are introducing a new abstract interface:
"TVirtualContainerProxy", which can be implemented to present a
proxy to any collection which the I/O (and TTreeFormula) can use
then transparently.
The TVirtualContainerProxy interface allows to the I/O system to
request some information and to execute some essential function of
the container:
what kind of object/data does it contain
does it contain pointers
how to insert data into the container
how to retrieve an array of pointer to the elements inside
how to create a collection object
how to clear the collection
how to resize the collection
how to streamer the collection (if needed)
how to calculate the sizeof the collection
how to calculate the number of elements of the collection.
Using those primitives, the I/O and TTreeFormula should be able to
access any collection. The I/O should also be able to handle the
splitting of collections that can be split (i.e. contains a single
type of object/data).
The current compromise selected between code duplication,
performance of the I/O of TClonesArray and vector of pointers and
the performance of the I/O of other containers, was to have on
function handle all collection as if they were a C-style array of
pointers to data. This implies for example that the I/O of vector
of object current passes via the construction of temporary array
of pointer. The cost of this construction is usually ~Qjust~R the
cost of calculating the addresses of the elements and assigning it
to an array element.
Registering a collection proxy will be similar to
static int dummy = GenerateInitInstance((CollectType*)0x0)-
>AdoptCollectionProxy(new CollectTypeProxy));
Follows a few details on the modifications made to some of the
files and classes.
Bytes.h:
Work around a problem in the MSVC++ 6.0 optimizer. This should
not affect other compilers.
String:
Included the std::string dictionary into G__Base2.cxx, this
insures its presence at all time.
Added a new file string.cxx holding the streamer for
std::string.
RConfig.h
Added proper ansi stream configuration for AIX, KCC
Added template specialization defect for MSVC
TBrowser
Start adding the ability to browser non TObject classes
TBuffer
To handle the reading and writing array of objects, added:
Int_t CheckByteCount(UInt_t startpos, UInt_t bcnt, const
TClass *clss, const char* classname);
Int_t CheckByteCount(UInt_t startpos, UInt_t bcnt, const
char *classname);
void ReadFastArray(void *start , TClass *cl, Int_t n=1,
TMemberStreamer *s=0);
void ReadFastArray(void **startp, TClass *cl, Int_t n=1,
Bool_t isPreAlloc=kFALSE, TMemberStreamer *s=0);
void WriteFastArray(void *start, TClass *cl, Int_t n=1,
TMemberStreamer *s=0);
Int_t WriteFastArray(void **startp, TClass *cl, Int_t n=1,
Bool_t isPreAlloc=kFALSE, TMemberStreamer *s=0);
TROOT
Enhancement to make the access to gROOT not dependent for the
library loading order. In particular we added:
ROOT::GetROOT()
which should be used instead of gROOT.
Improve support for STL. In particular, now STL containers do
have a corresponding TClass object
TRealData
Replace SetStreamer by AdoptStreamer that allow to use not only
a streamer function but also streamer object (allowing streamer
with a state for Foreign classes)
TString:
Improve streamer performance
TSystem:
More consistency of the return value of TSystem::CompileMacro
build/unix/makecintdlls.sh
Stop making the string.dll
config:
enhance sgicc makefiles
cont:
fix TBits::operator=
TClassTable now warns for duplicate only for non stl classes
TClonesArray fix a typo
gpad:
Add a new class TInspectObject to enable inspect non TObject
classes
TRootBrowser : enable inspect non TObject classes
TFormula/TTreeFormula
To enhance performance switch from using one array fOper which
contained the operation code and its arguments to using 2 arrays
fActions and fActionParams to store respectively the operation and
its parameters.
A new function Convert is used to convert old version from the
fOper to fActions. This allows cleaner coding and offer
optimization opportunities.
TTreePlayer
Start adding support in MakeClass for STL containers.
TRint/TProofServ
Insure the loading of the string support
Event.cxx
make sure to avoid memory over-write
stress.cxx
Add new parameters
stress <nevent> <style> <subbench> <portion>
if <subbench> is 1 or higher, print the benchmark results after
each test. This allows understand
which test is affect by a performance change.
portion is a binary field to indicate which test to run. This
allows to focus on a particular test.
TVirtualCollectionProxy
Abstract interface used to access any type of containers from
the I/O system and TTreeFormula. See TVectorProxy and
TEmulatedVectorProxy for examples.
TEmulatedVectorProxy
Implementation of a std::vector proxy to be able to read a
std::vector without any libraries.
TVectorProxy
Implementation of TVirtualCollectionProxy for a std::vector for
which we have the library.
TStreamerInfo.cxx
Split in 3 files: TStreamerInfo.cxx
TStreamerInfoReadBuffer.cxx TStreamerInfoWriteBuffer.cxx
All the ReadBuffer, ReadBufferClones and the new ReadBufferSTL
(similarly for WriteBuffer) have been factorized into one
function and 2 short wrappers. The new main function expect an
array of pointer to the objects (this array is most often of size
one).
TClonesArray objects pass GetObjectRef(0) to the common
ReadBuffer
vector<bla*> v pass &(v[0])
vector<bla> needs to create an intermediary array to hold the
address
This mechanism is sometimes not optimal (vector<blah>) but
allows extremely flexibly and extension. Basically, to add
support for a new container type using the StreamerInfo mechanism
(in particular allows splitting), one 'just' need to implement a
TVirtualCollectionProxy, which, in particular, will return an
array of address to the object it contains. Even std::map can be
handled with this mechanism, since, for I/O purposes, it can be
consider as a container of pairs.
Add a few optimization, including more caching via a new array
of a new struct (fComp).
Fixed a problem (re)introduced while implementing the Foreign
class CheckSum. Doing:
class Event;
f = new TFile("Event.root");
resulted in errors.
TCint
Add proper support for TClass of STL containers. Fix a memory
leak.
Add support for load TClass via a typedef.
Fix a problem with multiple inheritance
TClass
Fixed a problem (re)introduced while implementing the Foreign
class CheckSum. Doing:
class Event;
f = new TFile("Event.root");
resulted in errors.
Add a
TClass/TGenericClassInfo/TDataMember
Add support for a new interface (TVirtualCollectionProxy)
useable for STL containers or any user defined containers.
Add support for streamer with are objects (as opposed to free
standing function or methods). This allows the user a greater
flexibility in writing a streamer.
Add a few optimizations
Add CanSplit to answer the question for a whole Class (for
example some collection can not be splitted).
TClassStreamer
New class to wrap a class wide streamer
ClassStreamerFunc_t
typedef for a class wide streamer function
TMemberStreamer
New class to wrap a specific class member streamer
MemberStreamerFunc_t
typedef for a specific class member streamer function
RootStreamer
Macro to specify a free standing streamer object or function
for a class
For example:
RootStreamer(string,std_string_streamer);
TStreamerElement:
A couple of optimization/simplification.
Add support for the new STL I/O
Extend the useful
TBranchElement:
add a connection to the proper TVirtualCollectionProxy
add support for STL containers (non-split and split mode)
TTree
Make the function TTree::GetMakeClass NON-virtual for better
efficiency
Add support for STL containers
TBasket
Left (in comment) a yet unproved improvement proposed by
Victor. The preliminary tests were inconclusive performance wise
and it had (seemingly) problem with backward and forward
compatibility.
TBranch
Performance improvements
metautils
This is a new package for C++ files shared between rootcint and
meta.
It contains TClassEdit a class to help determine some property
of a class given its class name (stl, template, etc).
utils
Introduced a new file RStl.cxx to start separating rootcint in
modules.
Modified rootcint to support the new STL I/O methods.
In particular a new class RStl is in charge of doing the
generating of code for STL containers.
Revision
2597 -
(
view)
(
download)
(
as text)
(
annotate)
-
[select for diffs]
Modified
Thu Jul 19 16:42:37 2001 UTC (13 years, 6 months ago) by
brun
Original Path:
trunk/tree/src/TLeafObject.cxx
File length: 7408 byte(s)
Diff to
previous 2439
Fix a problem found by Philippe when reading branches for which the pointer
is virtual. In this case, we had already the logic (via fVirtual) to save the real name
of the class, but this name was not used to call the default constructor.
Revision
2113 -
(
view)
(
download)
(
as text)
(
annotate)
-
[select for diffs]
Modified
Wed May 2 20:44:34 2001 UTC (13 years, 8 months ago) by
brun
Original Path:
trunk/tree/src/TLeafObject.cxx
File length: 7161 byte(s)
Diff to
previous 2087
Add new code from Philippe to support, eg
T.Draw("event.GetHistogram()->GetMean()")
T.Draw("event.fH.fNcells").
The modification in TClass in needed to allow for TClass::GetMethod to properly
return method that allocated more than 1 parent class removed (i.e a function
in TObject for TTree).
Also, eventhough the result is correct, the modifications is not optimal
for speed
of execution of the GetMethod method.
Revision
47 -
(
view)
(
download)
(
as text)
(
annotate)
-
[select for diffs]
Modified
Mon May 29 06:19:21 2000 UTC (14 years, 7 months ago) by
brun
Original Path:
trunk/tree/src/TLeafObject.cxx
File length: 5866 byte(s)
Diff to
previous 3
// 29 May
- Add the following note in the TPave, TPaveLabel and TPaveText constructors:
IMPORTANT NOTE:
Because TPave objects (and objects deriving from TPave) have their
master coordinate system in NDC, one cannot use the TBox functions
SetX1,SetY1,SetX2,SetY2 to change the corner coordinates. One should use
instead SetX1NDC, SetY1NDC, SetX2NDC, SetY2NDC.
28 May
- Modify THistPainter::PaintStat and PaintStat2 to use the TLatex character #pm
instead of +-
// 27 May
- Add new member functions:
Int_t TVirtualTreePlayer::GetDimension()
Int_t TTreePlayer::GetDimension()
GetDimension returns the number of dimensions in the TTree::Draw expression.
- Add new function in TTree;
void TTree::UnbinnedFit(const char *funcname ,const char *varexp, const char *selection="",Option_t *option=""
,Int_t nentries=1000000000, Int_t firstentry=0);
This function (origin Stephen Bailey) performs an unbinned fit to the
variable(s) given in varexp.
- Remove unused data member fDimension from class TTree.
- Introduce support for "Virtuality" in TLeafObject.
New data member fVirtual added and corresponding IsVirtual/SetVirtual functions.
By default, fVirtual is kTRUE.
This change allows new interesting possibilities in split mode. For example
if a member is TShape *fShape, a real object may be now of any type
derived from TShape (eg, TTUBE, TBRIK, etc).
With the previous version, the fShape object had to be of the declared
type TShape only.
When writing a TLeafObject, the class name of the object is now written in
the branch buffer by TLeafObject::FillBasket. When TLeafObject::ReadBasket
is called, an instance of the real class is built and its Streamer function
called.
This change is backward compatible. Old files can still be processed.
It is possible to set the virtuality for the branch to kFALSE via
TLeafObject::SetVirtual. Setting the virtuality to kFALSE makes
writing and reading faster and the file slightly smaller. In this case,
a TLeafObject must be of the type declared only.
- New minor changes in TGaxis (Damir Buskulic) for date/time format
in case the start time is not an integer value.
- Modify tutorial psexam.C to set the TPaveText TextFont to 61 instead of 62.
Font precision 1 bypass the TLatex logic.
- Mods in TLatex to remove the special treatment for characters ' and ".
Strings like l'#acute{e}toile are now correctly processed.
- Fix a bug in TGraph::GetFunction. (thanks Damon Spayde). The test
if (fFunctions) return 0; replaced by
if (!fFunctions) return 0;
This form allows you to request diffs between any two revisions of this file.
For each of the two "sides" of the diff,
enter a numeric revision.
