A capability-based API modeled after async_std
.
This corresponds to async_std
.
Capability-based APIs represent access to external resources as values
which can be passed around between different parts of a program.
Two notable features are the Dir
and Pool
types:
Dir
represents an open directory in a filesystem. Instead of
opening files by absolute paths or paths relative to the current
working directory, files are opened via paths relative to a
Dir
. The concepts of a process-wide “current working directory”
and a single global filesystem namespace are de-emphasized.
Pool
represents a set of network addresses. Instead of
allowing applications to request access to any address and then
applying process-wide filtering rules, filtering rules are
built into pools which may be passed through the program.
On WASI, use of this library closely reflects the underlying system
API, so it avoids compatibility layers.