Module sys 

Platform-specific I/O primitives.

Provides a thin, cross-platform surface over OS I/O handles, interest flags, and event types. Unix uses libc raw file descriptors; Windows stubs use windows-sys HANDLE types.

Structs

Event

A single I/O readiness event returned from a poll call.

Interest

Bitmask describing which I/O events a source is interested in.

Functions

close_fd

Close a file descriptor.

create_pipe

Create an OS pipe and return (read_fd, write_fd).

events_with_capacity

Create a fresh Events buffer with the given capacity pre-allocated.

set_nonblocking

Set a file descriptor to non-blocking mode.

Type Aliases

Events

Collection of events returned from a single poll call. Pre-allocated with a reasonable default capacity to avoid realloc on the hot path.

RawSource

Raw I/O handle type.