capnproto | n Proto serialization/RPC system | Serialization library

by capnproto C++ Version: v0.10.4 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | capnproto Summary

capnproto is a C++ library typically used in Utilities, Serialization applications. capnproto has no bugs and it has medium support. However capnproto has 6 vulnerabilities and it has a Non-SPDX License. You can download it from GitHub.

Cap'n Proto is an insanely fast data interchange format and capability-based RPC system. Think JSON, except binary. Or think Protocol Buffers, except faster. In fact, in benchmarks, Cap'n Proto is INFINITY TIMES faster than Protocol Buffers.

Support

Quality

Security

License

Reuse

Support

capnproto has a medium active ecosystem.

It has 9924 star(s) with 842 fork(s). There are 310 watchers for this library.

It had no major release in the last 6 months.

There are 145 open issues and 465 have been closed. On average issues are closed in 36 days. There are 44 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of capnproto is v0.10.4

Quality

capnproto has 0 bugs and 0 code smells.

Security

capnproto has 6 vulnerability issues reported (2 critical, 3 high, 1 medium, 0 low).

capnproto code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

capnproto has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

capnproto releases are not available. You will need to build from source code and install.

It has 1217 lines of code, 6 functions and 15 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

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capnproto Key Features

No Key Features are available at this moment for capnproto.

capnproto Examples and Code Snippets

No Code Snippets are available at this moment for capnproto.

Community Discussions

Trending Discussions on capnproto

How to handle capn_data in c?

How to access serialized data of Cap'n'Proto?

Call to `thisCap()` segfaults

VS2019: Compiling Cap'nProto Crashes C++ Compiler

Capnp: Move to previous position in BufferedInputStreamWrapper

QUESTION

How to handle capn_data in c?

Asked 2021-Oct-18 at 09:29

I use c-capnproto to serialize my sensor data. Now I need to add a HMAC to it. It needs to be a capn_data blob, but this is not handled in the example code.

When I try to add the data, it does not work. This is my capnp file:

...

ANSWER

Answered 2021-Oct-18 at 09:29

Finally found a hint in this closed issue, that was not visible or overlooked in my research at the beginning...

I used this code to serialize capn_data (this replaces the lower scope in the original question):

Source https://stackoverflow.com/questions/69554870

QUESTION

How to access serialized data of Cap'n'Proto?

Asked 2021-Jun-25 at 14:07

I'm working with Cap'n'Proto and my understanding is there is no need to do serialization as it's already being done. So my question is, how would I access the serialized data and get it's size so that I can pass it in as a byte array to another library.

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ANSWER

Answered 2021-Jun-23 at 20:07

::capnp::MallocMessageBuilder message;

Source https://stackoverflow.com/questions/68106146

QUESTION

Call to `thisCap()` segfaults

Asked 2020-Oct-16 at 02:18

I am playing with the calculator-server.c++ sample, where I try to extract thisCap() to have a capability to the server from outside. Because thisCap() is protected, I wrote my own public getCapability():

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ANSWER

Answered 2020-Oct-16 at 02:18

thisCap() only works after at least one Client object has been created pointing at your server object. To create that initial Client, you can simply declare a variable of the client type and initialize it to your server object, like so:

Source https://stackoverflow.com/questions/64376878

QUESTION

VS2019: Compiling Cap'nProto Crashes C++ Compiler

Asked 2020-Sep-16 at 18:33

So, the situation is that due to some unforeseen consequences I need to build Cap'nProto (https://capnproto.org/) for windows using Visual Studio 2019 (latest release as far as I know, 16.7.3).

As you can see from the screenshot below, the compiler is very unhappy with the code, to the extent that it gives an internal compiler error on the line 2616 where there is a pretty complex macro that expands to an auto template nightmare.

The macro itself is:

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ANSWER

Answered 2020-Sep-16 at 18:33

This is a Work around VS2019 ICE in KJ_CASE_ONEOF() that on code review now and hope soon will be merged into master

Source https://stackoverflow.com/questions/63916528

QUESTION

Capnp: Move to previous position in BufferedInputStreamWrapper

Asked 2020-Apr-20 at 13:54

I have a binary file with multiple Capnp messages which I want to read. Reading sequentially works well, but I have the use-case, that I want to jump to a previously known position. The data sequential images with metadata including there timestamp. I would like to have the possibility to jump back and forth (like in a video player).

This is what I have tried:

...

ANSWER

Answered 2020-Apr-20 at 13:54

BufferedInputStream is not seekable. In order to seek backwards, you will need to destroy bufferedStream and then seek the underlying file descriptor, e.g. with lseek(), then create a new buffered stream.

Note that reading the current position (in order to pass to lseek() later to go back) is also tricky if a buffered stream is present, since the buffered stream will have read past the position in order to fill the buffer. You could calculate it by subtracting off the buffer size, e.g.:

Source https://stackoverflow.com/questions/61244239

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install capnproto

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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