//! danos user-space runtime library — a nascent libc. Every user binary (init,
//! and later the VFS server + device drivers) imports this as `@import("runtime")`:
//! system_call wrappers, the C-convention heap, IPC helpers, and the process start
//! shim. It is compiled into each binary (inheriting its `.large` code model and
//! freestanding target), so all user programs share one implementation.
//!
//! A user binary needs three lines:
//!   const runtime = @import("runtime");
//!   pub const panic = runtime.panic;
//!   comptime { _ = &runtime.start._start; }   // pull the entry shim in
//! and a `pub fn main() void`.

pub const system = @import("system.zig");
pub const heap = @import("heap.zig");
pub const ipc = @import("ipc.zig");
pub const start = @import("start.zig");
/// The VFS wire protocol (shared with the VFS server).
pub const vfs_protocol = @import("vfs-protocol");
/// POSIX-style file API: open/read/write/lseek/stat/close.
/// C stdio: fopen/fread/fwrite/fseek/ftell/fclose over unistd.
/// Device access for drivers: enumerate/claim/mmioMap.
pub const device = @import("device.zig");
/// DMA-capable memory for drivers: contiguous, pinned, uncacheable buffers.
pub const dma = @import("dma.zig");

/// Re-exported so a user binary can `pub const panic = runtime.panic;`.
pub const panic = start.panic;

/// The heap as a `std.mem.Allocator`, for Zig `std` containers in user code.
pub const allocator = heap.allocator;