Module host 

Core’s side of the protocol: spawn a plugin, negotiate a version, send requests.

Frames are read on a background thread so core can time out a silent plugin during the handshake and never blocks forever on a plugin that has died. stderr is drained on another thread, forwarded to a log sink and kept (last lines) for error messages.

Structs

PluginInfo

PluginProcess

Enums

Execution

The outcome of a source execute.

HostError

Incoming

A message from the plugin.

Constants

DEFAULT_HANDSHAKE_TIMEOUT

INTERACTIVE_ENV

Set to 1 in a plugin’s environment when a person is at core’s terminal, else 0.

Functions

set_core_version

Set the DRE version sent to plugins in the handshake (core_version). This crate is versioned on its own, so the host names the version of DRE it’s part of; unset, it’s “unreleased”.

stderr_log

A log sink that prefixes each plugin line with the plugin’s file name, on core’s stderr.

Type Aliases

LogSink

Receives each stderr line a plugin writes.

Result