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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/rust/hyper/src/ffi/mod.rs
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
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Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+// We have a lot of c-types in here, stop warning about their names!
+#![allow(non_camel_case_types)]
+// fmt::Debug isn't helpful on FFI types
+#![allow(missing_debug_implementations)]
+// unreachable_pub warns `#[no_mangle] pub extern fn` in private mod.
+#![allow(unreachable_pub)]
+
+//! # hyper C API
+//!
+//! This part of the documentation describes the C API for hyper. That is, how
+//! to *use* the hyper library in C code. This is **not** a regular Rust
+//! module, and thus it is not accessible in Rust.
+//!
+//! ## Unstable
+//!
+//! The C API of hyper is currently **unstable**, which means it's not part of
+//! the semver contract as the rest of the Rust API is. Because of that, it's
+//! only accessible if `--cfg hyper_unstable_ffi` is passed to `rustc` when
+//! compiling. The easiest way to do that is setting the `RUSTFLAGS`
+//! environment variable.
+//!
+//! ## Building
+//!
+//! The C API is part of the Rust library, but isn't compiled by default. Using
+//! `cargo`, it can be compiled with the following command:
+//!
+//! ```notrust
+//! RUSTFLAGS="--cfg hyper_unstable_ffi" cargo build --features client,http1,http2,ffi
+//! ```
+
+// We may eventually allow the FFI to be enabled without `client` or `http1`,
+// that is why we don't auto enable them as `ffi = ["client", "http1"]` in
+// the `Cargo.toml`.
+//
+// But for now, give a clear message that this compile error is expected.
+#[cfg(not(all(feature = "client", feature = "http1")))]
+compile_error!("The `ffi` feature currently requires the `client` and `http1` features.");
+
+#[cfg(not(hyper_unstable_ffi))]
+compile_error!(
+ "\
+ The `ffi` feature is unstable, and requires the \
+ `RUSTFLAGS='--cfg hyper_unstable_ffi'` environment variable to be set.\
+"
+);
+
+#[macro_use]
+mod macros;
+
+mod body;
+mod client;
+mod error;
+mod http_types;
+mod io;
+mod task;
+
+pub use self::body::*;
+pub use self::client::*;
+pub use self::error::*;
+pub use self::http_types::*;
+pub use self::io::*;
+pub use self::task::*;
+
+/// Return in iter functions to continue iterating.
+pub const HYPER_ITER_CONTINUE: libc::c_int = 0;
+/// Return in iter functions to stop iterating.
+#[allow(unused)]
+pub const HYPER_ITER_BREAK: libc::c_int = 1;
+
+/// An HTTP Version that is unspecified.
+pub const HYPER_HTTP_VERSION_NONE: libc::c_int = 0;
+/// The HTTP/1.0 version.
+pub const HYPER_HTTP_VERSION_1_0: libc::c_int = 10;
+/// The HTTP/1.1 version.
+pub const HYPER_HTTP_VERSION_1_1: libc::c_int = 11;
+/// The HTTP/2 version.
+pub const HYPER_HTTP_VERSION_2: libc::c_int = 20;
+
+struct UserDataPointer(*mut std::ffi::c_void);
+
+// We don't actually know anything about this pointer, it's up to the user
+// to do the right thing.
+unsafe impl Send for UserDataPointer {}
+unsafe impl Sync for UserDataPointer {}
+
+/// cbindgen:ignore
+static VERSION_CSTR: &str = concat!(env!("CARGO_PKG_VERSION"), "\0");
+
+ffi_fn! {
+ /// Returns a static ASCII (null terminated) string of the hyper version.
+ fn hyper_version() -> *const libc::c_char {
+ VERSION_CSTR.as_ptr() as _
+ } ?= std::ptr::null()
+}