senders-io

An adaption of Senders/Receivers for async networking and I/O

This repository is still very experimental and in development. It's goal is to create abstractions for file and networking i/o using stdexec as a model for asynchronous operations.

The basic principles are:

• We use an async_resource concept to asynchronously create and asynchronously release a resource
  • such a resource is usable via some copyable, non-owning token such as a file_handle or socket_handle
  • examples are files, sockets, schedulers, memory ...
• We use sequence-senders for operations that could potentially complete multiple times
  • completion are either sequential or in parallel
  • examples are read and write operations, resolving hostnames or accepting new connections

How to build this project

This repository builds ontop of a specific branch of stdexec, namely the member-only-customization-points. (see NVIDIA/stdexec#788)

Therefore you have to checkout the correct branch and install it such that CMake can find it.

To install stdexec in some <prefix> folder do something along the lines

$ git clone git@github.com:villevoutilainen/wg21_p2300_std_execution.git stdexec
$ git -w stdexec checkout member-only-customization-points
$ cmake -S stdexec -B stdexec-build -DCMAKE_INSTALL_PREFIX="<prefix>"
$ cmake --install stdexec-build

After having installed stdexec, you can specify the <prefix> folder to CMake via the stdexec_DIR variable as in

$ cmake -S senders-io -B senders-io-build -Dstdexec_DIR=<prefix>/lib/cmake/stdexec

This project has been tested with gcc-11 and clang-16.

Documentation

Sequence Senders

async_resource

byte_stream / seekable_byte_stream

file_handle

io_scheduler

socket_handle

net_scheduler