0cf54ffeba
This commit fully implements `__wasi_fd_fdstat_get` on Windows so that the descriptor flags can be determined. It does this by calling into `NtQueryInformationFile` (safe to call from user mode) to get the open mode and access of the underlying OS handle. `NtQueryInformationFile` isn't included in the `winapi` crate, so it is manually being linked against. This commit also fixes several bugs on Windows: * Ignore `__WASI_FDFLAG_NONBLOCK` by not setting `FILE_FLAG_OVERLAPPED` on file handles (the POSIX behavior for `O_NONBLOCK` on files). * Use `FILE_FLAG_WRITE_THROUGH` for the `__WASI_FDFLAG_?SYNC` flags. * `__WASI_FDFLAG_APPEND` should disallow `FILE_WRITE_DATA` access to force append-only on write operations. * Use `GENERIC_READ` and `GENERIC_WRITE` access flags. The latter is required when opening a file for truncation.
32 lines
742 B
Rust
32 lines
742 B
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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)]
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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::option_map_unwrap_or,
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clippy::option_map_unwrap_or_else,
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clippy::unicode_not_nfc,
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clippy::use_self
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)
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)]
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#![cfg(windows)]
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pub mod file;
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mod ntdll;
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pub mod time;
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pub mod winerror;
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use winerror::WinError;
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pub type Result<T> = std::result::Result<T, WinError>;
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