Re: Warnings compiling MessageLite.java in protobuf-2.2.0
I should have been more specific about what compiler I'm using: open- jdk-6 version 6b14-1.4.1, on a linux (ubuntu) development environment from within netbeans. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/protobuf?hl=en -~--~~~~--~~--~--~---
open jdk
I have been having a lot of problems getting things to compile - the java protobuf library, to begin with; and even after getting that to compile, I couldn't get MyProtos.java (generated code) to compile. Come to find out, if I switch to sun-jdk-6 everything builds. Is this a known issue, or is it something with my particular compiler setup? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/protobuf?hl=en -~--~~~~--~~--~--~---
Re: deserialized fixed length message into a contiguous memory buffer?
On Thu, Sep 24, 2009 at 8:38 AM, am aamir...@gmail.com wrote: Hello, I am working with scalar values and fixed-length arrays. I need to deserialize the entire message into a contiguous raw buffer in memory such that all members of the data structure can be accessed by using offsets against a pointer to the raw buffer. This is due to the need for certain devices to have having DMA access to the deserialized message contents in system memory. If I use Protocol Buffers can I make sure that the entire deserialized message (including arrays of known size) is in a contiguous buffer in memory? Sorry, the C++ implementation does not support this, and I don't think we can reasonably make it support this since it would mean replacing every new with a call to a custom allocator, a pointer to which would have to be maintained somewhere, etc. You may need to write a custom implementation to achieve this. You could probably reuse a lot of code from the official implementation, though, such as CodedInputStream / CodedOutputStream. You might also look to see if protobuf-c comes closer to what you want. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/protobuf?hl=en -~--~~~~--~~--~--~---
Re: Warnings compiling MessageLite.java in protobuf-2.2.0
I'm told that a new version of the JDK enforces some things more strictly than slightly older versions did, which may be leading to these errors. The solution presented to me was to cast the value returned by internalGetResult() to ExtendableMessage. Note that through generics, we *already know* that the type returned is a subclass of ExtendableMessage, but due to some sort of obscure quirk of the Java language spec, you apparently aren't supposed to be able to access private members of the class if the type is a generics type parameter. Or something. So the work-around is to insert casts. The next release will include this fix. I think there's three places in the file where you need to add the cast. On Thu, Sep 24, 2009 at 7:40 AM, Christopher Piggott cpigg...@gmail.comwrote: I should have been more specific about what compiler I'm using: open- jdk-6 version 6b14-1.4.1, on a linux (ubuntu) development environment from within netbeans. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/protobuf?hl=en -~--~~~~--~~--~--~---
