efe7f37542
This commit deletes the old `snapshot_0` implementation of wasi-common, along with the `wig` crate that was used to generate bindings for it. This then reimplements `snapshot_0` in terms of `wasi_snapshot_preview1`. There were very few changes between the two snapshots: * The `nlink` field of `FileStat` was increased from 32 to 64 bits. * The `set` field of `whence` was reordered. * Clock subscriptions in polling dropped their redundant userdata field. This makes all of the syscalls relatively straightforward to simply delegate to the next snapshot's implementation. Some trickery happens to avoid extra cost when dealing with iovecs, but since the memory layout of iovecs remained the same this should still work. Now that `snapshot_0` is using wiggle we simply have a trait to implement, and that's implemented for the same `WasiCtx` that has the `wasi_snapshot_preview1` trait implemented for it as well. While this theoretically means that you could share the file descriptor table between the two snapshots that's not supported in the generated bindings just yet. A separate `WasiCtx` will be created for each WASI module.
46 lines
1.0 KiB
Rust
46 lines
1.0 KiB
Rust
#![deny(
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// missing_docs,
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trivial_numeric_casts,
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unused_extern_crates,
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unstable_features,
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clippy::use_self
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)]
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#![warn(unused_import_braces)]
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#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../clippy.toml")))]
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#![cfg_attr(feature = "cargo-clippy", allow(clippy::new_without_default))]
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#![cfg_attr(
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feature = "cargo-clippy",
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warn(
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clippy::float_arithmetic,
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clippy::mut_mut,
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clippy::nonminimal_bool,
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clippy::map_unwrap_or,
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clippy::clippy::unicode_not_nfc,
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clippy::use_self
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)
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)]
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mod ctx;
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mod entry;
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mod error;
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mod fdpool;
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pub mod fs;
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mod handle;
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mod path;
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mod sandboxed_tty_writer;
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pub(crate) mod sched;
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pub mod snapshots;
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mod string_array;
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mod sys;
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pub mod virtfs;
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pub mod wasi;
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pub use ctx::{WasiCtx, WasiCtxBuilder, WasiCtxBuilderError};
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pub use error::{Error, Result};
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pub use handle::{Handle, HandleRights};
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pub use sys::osdir::OsDir;
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pub use sys::osfile::OsFile;
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pub use sys::osother::OsOther;
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pub use sys::preopen_dir;
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pub use virtfs::{FileContents, VirtualDirEntry};
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