It's slightly faster to convert the value to signed value in PHP as
opposed to use pack and unpack.
For 1M get operation the difference is:
getShort in 3.3272678852081 seconds
getInt in 3.8338589668274 seconds
getLong in 5.6381590366364 seconds
getLong (neg) in 5.6149101257324 seconds
vs
getShort in 2.7564418315887 seconds
getInt in 3.1612701416016 seconds
getLong in 3.1369340419769 seconds
getLong (neg) in 3.1478710174561 seconds
And since pack("P") and unpack("q") has been removed now ByteBuffer
works for PHP >= 5.4
I updated idl_gen_general.cpp to add support for generating a Get Bytes
method for a vector to the generated C# source code. Given a byte vector
field named Foo, a method named GetFooBytes() will be generated in the
C# source code that will return an ArraySegment<byte> value referencing
the vector data in the underlying ByteBuffer.
I added a method to Table.cs named __vector_as_arraysegment that is used
by the code generated by the change to the C# generator.
__vector_as_arraysegment will take the offset of the vector and will
return the ArraySegment<byte> value corresponding to the bytes that
store the vector data.
I updated FlatBuffersExampleTests.cs to add tests to validate my
implementation of Table.__vector_as_arraysegment. I added tests to
demonstrate that the bytes for the monster's name can be extracted from
the underlying byte array. I also added tests to show that
Table.__vector_as_arraysegment returns a null value if the vector is not
present in the FlatBuffer.
I used the updated flatc.exe program to regenerate the C# source files
for the MyGame example. The new Monster class includes the GetXXXBytes
methods to return the byte arrays containing data for vectors.
Simply running clang with -stdlib=libc++ requires a manual link against
libc++abi on Linux. This is documented in the libc++ documentation:
http://libcxx.llvm.org/
Tested on Arch Linux, using clang 3.7.0 RELEASE.
Signed-off-by: Perry Hung <iperry@gmail.com>
It used to be such that later schemas could depend on earlier
schemas. This was a convenience from days before include files
were implemented. Nowadays they cause subtle bugs rather than being
useful, so this functionality has been removed.
You now need to explicitly include files you depend upon.
Change-Id: Id8292c3c621fc38fbd796da2d2cbdd63efc230d1
Tested: on Linux.
Besides making the generated code looking a lot more readable,
it also allows you to use these offsets in calls to
Table::CheckField, to see if a field is present in a table.
Change-Id: I1b4cc350c4f27c4e474c31add40c701ef4ae63b2
Tested: On Linux.
Also checks for nesting of objects in vector construction.
This avoids common errors in FlatBuffer construction.
Change-Id: I5507c5d767684e20e94883a92448f05acefba4d6
Tested: on Linux.
Fixes a bug where the logic to determine when to use a C# enum flags
both enums and vectors of enums. This causes the C# generator to
generate code that doesn't compile for tables that contain vectors of
enums.
The fix also consolidates type generation functions a bit and adds
some additional casting functions for clarity.
Also, added missing build scripts for flatc on Windows and fixed
numerous issues in the flatbuffers/android/jni/include.mk makefile.
Tested:
Verified dependent project (motive) can generate flatbuffers headers
with these changes on Android.
Bug: 25780616
Change-Id: I73f0dec8f7a6a7eb4e71951a8f1cd3e0d343a9ff
* codegen for all basic features: WIP (probably implemented all basic feature)
* JSON parsing: NO
* Simple mutation: NO
* Reflection: NO
* Buffer verifier: NO (will be add later)
* Testing: basic: Yes
* Testing: fuzz: Yes
* Performance: Not bad
* Platform: Supported Linux, OS X, Windows (has 32bit integer limitation)
* Engine Unity: No
flatc --php monster_test.fbs
<?php
//include neccessary files.
$fbb = new Google\FlatBuffers\FlatBufferBuilder(1);
$str = $fbb->createString("monster");
\MyGame\Example\Monster::startMonster($fbb);
\MyGame\Example\Monster::addHp($fbb, 80);
\MyGame\Example\Monster::addName($fbb, $str);
$mon = \MyGame\Example\Monster::endMonster($fbb);
$fbb->finish($mon);
echo $fbb->sizedByteArray();
PHP 5.4 higher
Currently, we do not register this library to packagist as still experimental and versioning problem.
If you intended to use flatbuffers with composer. add repostiories section to composer.json like below.
"repositories": [{
"type": "vcs",
"url": "https://github.com/google/flatbuffers"
}],
and just put google/flatbuffers.
"require": {
"google/flatbuffers": "*"
}
* PHP's integer is platform dependant. we strongly recommend use 64bit machine
and don't use uint, ulong types as prevent overflow issue.
ref: http://php.net/manual/en/language.types.integer.php
* php don't support float type. floating point numbers are always parsed as double precision internally.
ref: http://php.net/manual/en/language.types.float.php
* ByteBuffer is little bit slow implemnentation due to many chr/ord function calls. Especially encoding objects.
This is expected performance as PHP5 has parsing arguments overhead. probably we'll add C-extension.
Basically, PHP implementation respects Java and C# implementation.
Note: ByteBuffer and FlatBuffersBuilder class are not intended to use other purposes.
we may change internal API foreseeable future.
PSR-2, PSR-4 standards.
Implemented simple assertion class (respect JavaScript testcase implementation) as we prefer small code base.
this also keeps CI iteration speed.
we'll choose phpunit or something when the test cases grown.
Shuhei Tanuma