Displaying 13 results from an estimated 13 matches for "bytebuff".
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2008 Jan 24
0
JRuby, JNA, Windows
...I I thought I''d share:
require ''java''
# LoadLibrary()
Kernel32 = com.sun.jna.NativeLibrary.getInstance("kernel32")
# GetProcAddress()
GetCurrentDirectoryA = Kernel32.getFunction(''GetCurrentDirectoryA'')
# You can also do -> buf = java.nio.ByteBuffer.allocate(256)
buf = Array.new(256).to_java(:byte)
GetCurrentDirectoryA.invokeInt([256, buf].to_java)
buf = java.lang.String.new(buf)
p buf.to_s.strip
It''s a little clunkier than MRI at the moment, because Java strings are
immutable. We''re passing by reference, so we have to p...
2014 Mar 10
0
Mongoid : bson namespace error
Hello All,
I had been trying to work on Rails 4 and Mongoid gem.
The following are the versions I had installed:
bson-2.2.1
mongoid-3.1.6
After installing and trying to run "rails generate" command. It is failing
with NameSpace error for BSON::ByteBuffer.
It is trying to connect to mongodb server initially and getting successful.
Post that it is failing with the following error
>rails generate
C:/Ruby193/lib/ruby/gems/1.9.1/gems/mongo-1.9.2/lib/mongo/cursor.rb:585:in
`construct_query_message': uninitialized constant BSON::ByteBuffer
(Na...
2016 Jul 19
5
A "Java Backend"
My idea was to create a complete backend treating Java as a normal platform, to enable LLVM to compile programs to Java Bytecode (.class) and Java Archive files (.jar). This could be useful in situations where we need to compile a program for a platform still not natively supported by LLVM.
I don't know if it exists already, I've heard about this "LLJVM" but I don't think it
2008 Jan 26
0
JRuby version of win32-api - initial try
...h a "\0" to be a byte buffer
# and convert it automatically. This is necessary because Java
# strings are immutable.
args.each_with_index do |arg, i|
if arg.is_a?(String) && arg[0,1] == "\0"
args[i, 1] = java.nio.ByteBuffer.allocate(arg.length)
end
end
args = [*args].to_java
# Call the proper JNA invocation based on the return type
case @return_type
when ''P''
rv = @func.invokePointer(args)
when ''...
2012 May 05
2
looking for adice on bigmemory framework with C++ and java interoperability
I work with problems that have rather large data requirements -- typically
a bunch of multigig arrays. Given how generous R is with using memory, the
only way for me to work with R has been to use bigmatrices from bigmemory
package. One thing that is missing a bit is interoperability of bigmatrices
with C++ and possibly java. What i mean by that is API that would allow
read and write filebacked
2016 Jul 19
3
A "Java Backend"
...is not. There is no
equivalent of inttoptr or ptrtoint in Java bytecode and the closest
equivalent of a GEP is to retrieve a field from an object (though that’s
only really for GEP + load/store).
>
> You could potentially do something a bit ugly and treat all of LLVM
memory as one big ByteBuffer object, and make pointers indexes into
this, but then you’d make it very hard for your LLVM-originating code to
interoperate with Java-originating code and so you’d have to write a lot
of code to take the place of the system call layer.
The caveat here is that Java has this "private&quo...
2013 Nov 21
2
[LLVMdev] vmkit2 core dump after building mmtk
...lass file 'java/lang/RuntimeException' requires Java version
1.7. This JVM only supports Java versions up to 1.6.
WARNING: Class file 'java/lang/IllegalAccessException' requires Java
version 1.7. This JVM only supports Java versions up to 1.6.
WARNING: Class file 'java/nio/DirectByteBuffer' requires Java version
1.7. This JVM only supports Java versions up to 1.6.
WARNING: Class file 'java/nio/MappedByteBuffer' requires Java version
1.7. This JVM only supports Java versions up to 1.6.
WARNING: Class file 'java/nio/ByteBuffer' requires Java version 1.7.
This JVM...
2013 Nov 21
2
[LLVMdev] vmkit2 core dump after building mmtk
...ption' requires Java version
>> 1.7. This JVM only supports Java versions up to 1.6.
>> WARNING: Class file 'java/lang/IllegalAccessException' requires Java
>> version 1.7. This JVM only supports Java versions up to 1.6.
>> WARNING: Class file 'java/nio/DirectByteBuffer' requires Java version
>> 1.7. This JVM only supports Java versions up to 1.6.
>> WARNING: Class file 'java/nio/MappedByteBuffer' requires Java version
>> 1.7. This JVM only supports Java versions up to 1.6.
>> WARNING: Class file 'java/nio/ByteBuffer'...
2013 Nov 21
0
[LLVMdev] vmkit2 core dump after building mmtk
...lang/RuntimeException' requires Java version
> 1.7. This JVM only supports Java versions up to 1.6.
> WARNING: Class file 'java/lang/IllegalAccessException' requires Java
> version 1.7. This JVM only supports Java versions up to 1.6.
> WARNING: Class file 'java/nio/DirectByteBuffer' requires Java version
> 1.7. This JVM only supports Java versions up to 1.6.
> WARNING: Class file 'java/nio/MappedByteBuffer' requires Java version
> 1.7. This JVM only supports Java versions up to 1.6.
> WARNING: Class file 'java/nio/ByteBuffer' requires Java ve...
2013 Nov 22
0
[LLVMdev] vmkit2 core dump after building mmtk
...res Java version
>>> 1.7. This JVM only supports Java versions up to 1.6.
>>> WARNING: Class file 'java/lang/IllegalAccessException' requires Java
>>> version 1.7. This JVM only supports Java versions up to 1.6.
>>> WARNING: Class file 'java/nio/DirectByteBuffer' requires Java version
>>> 1.7. This JVM only supports Java versions up to 1.6.
>>> WARNING: Class file 'java/nio/MappedByteBuffer' requires Java version
>>> 1.7. This JVM only supports Java versions up to 1.6.
>>> WARNING: Class file 'java/nio/...
2013 Nov 21
0
[LLVMdev] vmkit2 core dump after building mmtk
I also misunderstood :) So, in this case, the problem is that your
version of openjdk is probably not supported. In fact, we only support
the version 7u23 of openjdk :) You can find this version here:
http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html#jdk-7u25-oth-JPR
Currently, I'm modifying the internal design of vmkit and I'm not
working
2008 Feb 05
31
ZFS Performance Issue
This may not be a ZFS issue, so please bear with me!
I have 4 internal drives that I have striped/mirrored with ZFS and have an application server which is reading/writing to hundreds of thousands of files on it, thousands of files @ a time.
If 1 client uses the app server, the transaction (reading/writing to ~80 files) takes about 200 ms. If I have about 80 clients attempting it @ once, it can
2013 Nov 21
2
[LLVMdev] vmkit2 core dump after building mmtk
I guess I mispoke, I checked out the source from
http://llvm.org/svn/llvm-project/vmkit/trunk. I thought this was
vmkit2. I guess I was just referring to vmkit then.
On Thu, Nov 21, 2013 at 12:10 PM, Gaël Thomas <gael.thomas00 at gmail.com> wrote:
> Hi Adam,
>
> I don't know which repo you have used? Because only the llvm repo is
> maintained (not the gforge one), and