Make Error

Mar 11, 2025 by ADMIN 11 views

**Resolving Compilation Errors in ngtcp2**

Introduction

ngtcp2 is a C library for building QUIC (Quick UDP Internet Connections) applications. It provides a set of APIs for implementing QUIC protocols, including connection establishment, data transmission, and error handling. In this article, we will guide you through the process of resolving compilation errors in ngtcp2.

Error Analysis

The compilation error occurs in the client.cc file of the examples directory. The error message indicates that the nghttp3_callbacks struct has no non-static data member named recv_settings. Additionally, the nghttp3_settings struct has no member named qpack_max_dtable_capacity.

Solution

To resolve this error, you need to update the nghttp3 library to a version that includes the recv_settings member in the nghttp3_callbacks struct and the qpack_max_dtable_capacity member in the nghttp3_settings struct.

Update nghttp3 Library

You can update the nghttp3 library by running the following commands:

git clone https://github.com/ngtcp2/nghttp3.git
cd nghttp3
git checkout v1.8.1
./configure --prefix=/data/app/nghttp3
make
make install

Update ngtcp2 Library

After updating the nghttp3 library, you need to update the ngtcp2 library to use the new version of nghttp3. You can do this by running the following commands:

git clone https://github.com/ngtcp2/ngtcp2.git
cd ngtcp2
./configure --prefix=/usr/local/ngtcp2 --with-nghttp3=/data/app/nghttp3
make
make install

Recompile ngtcp2 Examples

After updating the ngtcp2 library, you need to recompile the ngtcp2 examples. You can do this by running the following commands:

cd examples
make

Conclusion

In this article, we have guided you through the process of resolving compilation errors in ngtcp2. The error was caused by an outdated version of the nghttp3 library, which was updated to include the necessary members. We have provided the necessary commands to update the nghttp3 and ngtcp2 libraries and recompile the ngtcp2 examples.

Additional Tips

Make sure to update the nghttp3 library to a version that includes the necessary members.
Update the ngtcp2 library to use the new version of nghttp3.
Recompile the ngtcp2 examples after updating the ngtcp2 library.

References

License

This article is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Introduction

ngtcp2 is a C library for building QUIC (Quick UDP Internet Connections) applications. It provides a set of APIs for implementing QUIC protocols, including connection establishment, data transmission, and error handling. In this article, we will answer some frequently asked questions about ngtcp2.

Q: What is ngtcp2?

A: ngtcp2 is a C library for building QUIC applications. It provides a set of APIs for implementing QUIC protocols, including connection establishment, data transmission, and error handling.

Q: What is QUIC?

A: QUIC (Quick UDP Internet Connections) is a transport-layer protocol designed to improve the performance and security of the web. It is a connection-oriented protocol that uses UDP as its transport protocol.

Q: What are the benefits of using ngtcp2?

A: The benefits of using ngtcp2 include:

Improved performance: ngtcp2 is designed to improve the performance of QUIC applications by reducing latency and increasing throughput.
Improved security: ngtcp2 provides a set of APIs for implementing QUIC protocols, including connection establishment, data transmission, and error handling, which can help to improve the security of QUIC applications.
Easy to use: ngtcp2 provides a set of APIs that are easy to use and understand, making it a great choice for developers who want to build QUIC applications.

Q: How do I install ngtcp2?

A: To install ngtcp2, you can follow these steps:

Clone the ngtcp2 repository from GitHub: git clone https://github.com/ngtcp2/ngtcp2.git
Navigate to the ngtcp2 directory: cd ngtcp2
Run the configure script: ./configure --prefix=/usr/local/ngtcp2
Run the make command: make
Run the make install command: make install

Q: How do I use ngtcp2?

A: To use ngtcp2, you can follow these steps:

Include the ngtcp2 header file in your code: #include <ngtcp2/ngtcp2.h>
Initialize the ngtcp2 library: ngtcp2_init()
Create a new QUIC connection: ngtcp2_conn_new()
Send data over the QUIC connection: ngtcp2_conn_send()
Receive data over the QUIC connection: ngtcp2_conn_recv()
Close the QUIC connection: ngtcp2_conn_close()

Q: What are the system requirements for ngtcp2?

A: The system requirements for ngtcp2 are:

Operating System: Linux or macOS
Compiler: GCC or Clang
Library: OpenSSL or LibreSSL

Q: How do I troubleshoot ngtcp2 issues?

A: To troubleshoot ngtcp2 issues, you can follow these steps:

Check the ngtcp2 logs: ngtcp2_log_get()
Check the QUIC connection status: ngtcp2_conn_get_status()
Check the QUIC connection error: ngtcp2_conn_get_error()
Check the QUIC connection statistics: ngtcp2_conn_get_stats()

Q: How do I contribute to ngtcp2?

A: To contribute to ngtcp2, you can follow these steps:

Fork the ngtcp2 repository on GitHub: git fork https://github.com/ngtcp2/ngtcp2.git
Clone the forked repository: git clone https://github.com/your-username/ngtcp2.git
Make changes to the ngtcp2 code: git add .
Commit the changes: git commit -m "Your commit message"
Push the changes to the forked repository: git push origin your-branch
Create a pull request to the ngtcp2 repository: git request-pull origin your-branch