package eio
Install
Dune Dependency
Authors
Maintainers
Sources
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doc/eio/Eio/Stdenv/index.html
Module Eio.StdenvSource
The standard environment of a process.
All access to the outside world comes from running the event loop, which provides an environment (e.g. an Eio_unix.Stdenv.base).
Example:
let () =
Eio_main.run @@ fun env ->
Eio.Path.with_open_dir env#fs "/srv/www" @@ fun www ->
serve_files www
~net:env#netStandard streams
To use these, see Flow.
File-system access
To use these, see Path.
cwd t is the current working directory of the process (this may change over time if the process does a "chdir" operation, which is not recommended).
fs t is the process's full access to the filesystem.
Paths can be absolute or relative (to the current working directory). Using relative paths with this is similar to using them with cwd, except that this will follow ".." and symlinks to other parts of the filesystem.
fs is useful for handling paths passed in by the user.
Network
To use this, see Net.
Processes
To use this, see Process.
process_mgr t allows you to manage child processes.
Domains (using multiple CPU cores)
To use this, see Domain_manager.
domain_mgr t allows running code on other cores.
Time
To use this, see Time.
clock t is the system clock (used to get the current time and date).
mono_clock t is a monotonic clock (used for measuring intervals).
Randomness
secure_random t is an infinite source of random bytes suitable for cryptographic purposes.
Debugging
debug t provides privileged controls for debugging.
backend_id t provides the name of the backend being used.
The possible values are the same as the possible values of the "EIO_BACKEND" environment variable used by Eio_main.run.