flatcc | FlatBuffers Compiler and Library in C for C | JSON Processing library

by dvidelabs C Version: v0.6.1 License: Apache-2.0

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kandi X-RAY | flatcc Summary

flatcc is a C library typically used in Utilities, JSON Processing applications. flatcc has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This project builds flatcc, a compiler that generates FlatBuffers code for C given a FlatBuffer schema file. This introduction also creates a separate test project with the traditional monster example, here in a C version. For now assume a Unix like system although that is not a general requirement - see also [Building] #building). You will need git, cmake, bash, a C compiler, and either the ninja build system, or make. scripts/initbuild.sh is optional and chooses the build backend, which defaults to ninja. The setup script builds flatcc using CMake, then creates a test project directory with the monster example, and a build script which is just a small shell script. The headers and libraries are symbolically linked into the test project. You do not need CMake to build your own projects once flatcc is compiled. To create another test project named foobar, call scripts/setup.sh -s -x ../foobar. This will avoid rebuilding the flatcc project from scratch.

Support

Quality

Security

License

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Support

flatcc has a low active ecosystem.

It has 553 star(s) with 163 fork(s). There are 35 watchers for this library.

It had no major release in the last 12 months.

There are 19 open issues and 133 have been closed. On average issues are closed in 6 days. There are 9 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of flatcc is v0.6.1

Quality

flatcc has 0 bugs and 0 code smells.

Security

flatcc has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

flatcc code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

flatcc is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

flatcc releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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flatcc Examples and Code Snippets

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Community Discussions

Trending Discussions on flatcc

Vector of tables, flatbuffers C

QUESTION

Vector of tables, flatbuffers C

Asked 2021-Mar-17 at 21:47

I'm experimenting with flatbuffers, in C, just getting a feel for it. I'm having a weird issue. Well, a couple more than likely.

I think I'm building the flatbuffers and adding all the correct components in the correct manner. However, when I try to read a vector of tables, _vec_len(T) is returning size 0, even though when I hexdump the buffer I can clearly see the said tables being added to/removed from the buffer.

I've used more methods of getting the vector of tables to be readable than I can count. Most have ended with type mismatch compile errors. None of the ones that have actually compiled have resulted in _vec_len(T) returning anything other than 0.

I've also tried using _vec_at(0), but this causes an assertion to fail stating that the given index is out of range.

At this point, I'm either: a) missing something really simple, b) building the flatbuffer completely wrong, or c) making assumptions about how flatbuffers are built that are just plain incorrect.

I have attached my schema and source code, as well as debugging output from the program.

(I realized after posting that the code blocks dont include line numbers.) The line that seems to be failing is size_t hops_vec_len = TransitHop_vec_len(hopsTable); in the C code, near the bottom. Either that, or the entire block starting at // test_root routing near the top is wrong.

By my understanding, using _start(B) and _end(B), everything that gets added to said component of the schema should be added to the buffer and placed into the v-tables for access automatically.

So, I'm not sure where to go. Can anyone point to what I'm doing wrong/misunderstanding? Any help is greatly appreciated.

flatbuffers_test.fbs

...

ANSWER

Answered 2021-Mar-17 at 21:47

I received a response from the flatcc author.

See https://groups.google.com/g/flatbuffers/c/mjkyhbA6vS8 for the complete response.

Source https://stackoverflow.com/questions/66678903

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

Vulnerabilities

No vulnerabilities reported

Install flatcc

After [building](https://github.com/dvidelabs/flatcc#building) the flatcc tool, binaries are located in the bin and lib directories under the flatcc source tree.
To initialize and run the build (see required build tools below):. The bin and lib folders will be created with debug and release build products. The build depends on CMake. By default the Ninja build tool is also required, but alternatively make can be used.
Install CMake, MSVC, and git (tested with MSVC 14 2015).

Support

If possible, please provide a short reproducible schema and source file with a main program the returns 1 on error and 0 on success and a small build script. Preferably generate a hexdump and call the buffer verifier to ensure the input is valid and link with the debug library flatccrt_d. See also [Debugging a Buffer](#debugging-a-buffer), and [readfile.h] useful for reading an existing buffer for verification.

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