This is required to make it possible to use a pointer to one of the
buffers with the document data in nodes but keep offset_debug and (more
importantly) XPath document order comparison optimization working.
The change increases memory page alignment to 64 bytes (so requires +32
bytes for every page allocation, which should not be a problem - even with
non-default 4k pages this is <1% extra cost, with default 32k pages the
overhead is 0.1%)
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1031 99668b35-9821-0410-8761-19e4c4f06640
Since xml_node/attribute are pointer wrappers it's cheaper to pass them by
value. This makes XPath evaluation 4% faster and node printing 2% faster.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1029 99668b35-9821-0410-8761-19e4c4f06640
This makes node copying 6% faster, prevents it from ever running out of
stack space and makes the profiling results more actionable for profilers
that can't merge information from recursive calls.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1027 99668b35-9821-0410-8761-19e4c4f06640
Renames write to write_string and write_buffer to make it easier to
distinguish between them in profiling runs and commit messages...
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1025 99668b35-9821-0410-8761-19e4c4f06640
Make it easier for the compiler to generate good code by loading bufsize
into a local once and returning new offset from flush(). This results in
7% performance gain.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1024 99668b35-9821-0410-8761-19e4c4f06640
Instead of computing the length and doing memcpy we now copy the head of
the string into the buffer (like strcpy) and then use memcpy for tail if
necessary. This results in 10-15% speedup for writing typical documents with
a mix of short and long strings.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1023 99668b35-9821-0410-8761-19e4c4f06640
//name means /descendant-or-self::node()/child::name, but we frequently
can replace it with /descendant::name. This means we do not have to build
up a temporary node set with all descendants that can lead to 3x speedups.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1021 99668b35-9821-0410-8761-19e4c4f06640
We now precompute indent length and have a fast path for lengths 0..4 that
avoids calling memcpy in a tight loop. This makes node output 20-30%
faster if indentation is enabled.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1018 99668b35-9821-0410-8761-19e4c4f06640
This makes node output 3% faster, prevents it from ever running out of
stack space and makes the profiling results more actionable for profilers
that can't merge information from recursive calls.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1014 99668b35-9821-0410-8761-19e4c4f06640
- Include GNUInstallDirs which sets up standard install locations including
lib64 for mulilib systems.
- Make BUILD_SHARED_LIBS an option instead of a variable which is better for
use in either the cmake-gui or ccmake gui interfaces.
- Setup a destination for WIN32 runtime DLL's which is also helpful for MinGW
installs.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1012 99668b35-9821-0410-8761-19e4c4f06640
Use a special macro that unrolls the loop body and uses static branch prediction
to improve code generation.
This increases performance across all data sets from benchmark; clang x64 is 10%-40%
faster, clang x86 is 5%-20% faster, msvc is 5%-10% faster.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1008 99668b35-9821-0410-8761-19e4c4f06640
This makes it easier to optimize strconv. For consistency move all definitions of parser-internal macros to one place.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1007 99668b35-9821-0410-8761-19e4c4f06640
The operations itself are O(1) since they just rearrange pointers.
However, the validation step is O(logN) due to a sanity check to prevent recursive trees.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@1002 99668b35-9821-0410-8761-19e4c4f06640
When allocating new pages, make sure that the page has at least 1/4 of the
base page size free. This makes sure that we can do small allocations after
big allocations (i.e. huge node lists) without doing a heap alloc.
This is important because XPath stack code always reclaims extra pages after
evaluating sub-expressions, so allocating a small chunk of memory and then
rolling the state back is a common case (filtering a node list using a
predicate usually does this).
A better solution involves smarter allocation rollback strategy, but the
implemented solution is simple and practical.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@999 99668b35-9821-0410-8761-19e4c4f06640
Exposing true mutable iterators allows the user to violate sorting order
contract. However, some generic algorithms (i.e. Boost ForEach) require
iterator methods to be present.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@998 99668b35-9821-0410-8761-19e4c4f06640
Qmake treats all files that are #include-d as header files, even if the #include is
guarded by an #ifdef. It looks like the only solution that allows for transparent
header-only support based on preprocessor define involves moving the actual source
into a separate header file and including this file in pugixml.cpp.
Let's not do it yet.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@990 99668b35-9821-0410-8761-19e4c4f06640
Temp folder is the root folder on Windows; writing to the folder may require administrator rights.
We can't use current folder for temporaries because tests from different configurations can be running
in parallel, but executable folder is always safe since we only run each executable once.
git-svn-id: https://pugixml.googlecode.com/svn/trunk@984 99668b35-9821-0410-8761-19e4c4f06640
