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remove redundant init calls

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This commit is contained in:
do butterflies cry? 2026-03-29 20:51:51 +10:00
parent f834bcfaa9
commit 53c2d40393
Signed by: cry
GPG key ID: F68745A836CA0412
2 changed files with 69 additions and 60 deletions
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68
nixide/src/init.rs Normal file
View file

@ -0,0 +1,68 @@
use ctor::ctor;
use super::NixideResult;
use super::errors::ErrorContext;
use super::util::wrap;
use super::util::wrappers::AsInnerPtr as _;
pub(crate) static mut LIBNIX_INIT_STATUS: Option<NixideResult<()>> = None;
/// # Warning
///
/// > Rust's philosophy is that nothing happens before or after main and [ctor](https://github.com/mmastrac/rust-ctor)
/// > explicitly subverts that. The code that runs in `ctor` functions
/// > should be careful to limit itself to libc functions and code
/// > that does not rely on Rust's stdlib services.
/// > - Excerpt from the [github:mmastrac/rust-ctor README.md](https://github.com/mmastrac/rust-ctor?tab=readme-ov-file#warnings)
#[ctor]
#[cfg(not(feature = "exprs"))]
fn init_libutil() {
unsafe {
if !matches!(LIBNIX_INIT_STATUS, Some(Err(_))) {
LIBNIX_INIT_STATUS = Some(wrap::nix_fn!(|ctx: &ErrorContext| unsafe {
sys::nix_libutil_init(ctx.as_ptr());
}));
}
}
}
/// # Warning
///
/// > Rust's philosophy is that nothing happens before or after main and [ctor](https://github.com/mmastrac/rust-ctor)
/// > explicitly subverts that. The code that runs in `ctor` functions
/// > should be careful to limit itself to libc functions and code
/// > that does not rely on Rust's stdlib services.
/// > - Excerpt from the [github:mmastrac/rust-ctor README.md](https://github.com/mmastrac/rust-ctor?tab=readme-ov-file#warnings)
#[ctor]
#[cfg(all(feature = "store", not(feature = "exprs")))]
fn init_libstore() {
// XXX: TODO: how do I support `sys::nix_libstore_init_no_load_config(context)`?
unsafe {
if !matches!(LIBNIX_INIT_STATUS, Some(Err(_))) {
LIBNIX_INIT_STATUS = Some(wrap::nix_fn!(|ctx: &ErrorContext| unsafe {
sys::nix_libstore_init(ctx.as_ptr());
}));
}
}
}
/// `sys::nix_libexpr_init` internally runs
///
/// # Warning
///
/// > Rust's philosophy is that nothing happens before or after main and [ctor](https://github.com/mmastrac/rust-ctor)
/// > explicitly subverts that. The code that runs in `ctor` functions
/// > should be careful to limit itself to libc functions and code
/// > that does not rely on Rust's stdlib services.
/// > - Excerpt from the [github:mmastrac/rust-ctor README.md](https://github.com/mmastrac/rust-ctor?tab=readme-ov-file#warnings)
#[ctor]
#[cfg(feature = "exprs")]
fn init_libexpr() {
unsafe {
if !matches!(LIBNIX_INIT_STATUS, Some(Err(_))) {
LIBNIX_INIT_STATUS = Some(wrap::nix_fn!(|ctx: &ErrorContext| unsafe {
sys::nix_libexpr_init(ctx.as_ptr());
}));
}
}
}

61
nixide/src/lib.rs
View file

@ -7,6 +7,7 @@ pub extern crate libc;
pub extern crate nixide_sys as sys;
pub(crate) mod errors;
mod init;
mod stdext;
pub(crate) mod util;
mod verbosity;
@ -29,63 +30,3 @@ pub use expr::{EvalState, EvalStateBuilder, Value};
pub use flake::{FlakeSettings, LockedFlake};
#[cfg(feature = "store")]
pub use store::{Store, StorePath};
use ctor::ctor;
use util::wrappers::AsInnerPtr as _;
pub(crate) static mut INIT_LIBUTIL_STATUS: Option<NixideResult<()>> = None;
#[cfg(feature = "store")]
pub(crate) static mut INIT_LIBSTORE_STATUS: Option<NixideResult<()>> = None;
#[cfg(feature = "exprs")]
pub(crate) static mut INIT_LIBEXPR_STATUS: Option<NixideResult<()>> = None;
/// # Warning
///
/// > Rust's philosophy is that nothing happens before or after main and [ctor](https://github.com/mmastrac/rust-ctor)
/// > explicitly subverts that. The code that runs in `ctor` functions
/// > should be careful to limit itself to libc functions and code
/// > that does not rely on Rust's stdlib services.
/// > - Excerpt from the [github:mmastrac/rust-ctor README.md](https://github.com/mmastrac/rust-ctor?tab=readme-ov-file#warnings)
#[ctor]
fn init_libutil() {
unsafe {
INIT_LIBUTIL_STATUS = Some(util::wrap::nix_fn!(|ctx: &errors::ErrorContext| unsafe {
sys::nix_libutil_init(ctx.as_ptr());
}));
}
}
/// # Warning
///
/// > Rust's philosophy is that nothing happens before or after main and [ctor](https://github.com/mmastrac/rust-ctor)
/// > explicitly subverts that. The code that runs in `ctor` functions
/// > should be careful to limit itself to libc functions and code
/// > that does not rely on Rust's stdlib services.
/// > - Excerpt from the [github:mmastrac/rust-ctor README.md](https://github.com/mmastrac/rust-ctor?tab=readme-ov-file#warnings)
#[ctor]
#[cfg(feature = "store")]
fn init_libstore() {
// XXX: TODO: how do I support `sys::nix_libstore_init_no_load_config(context)`?
unsafe {
INIT_LIBSTORE_STATUS = Some(util::wrap::nix_fn!(|ctx: &errors::ErrorContext| unsafe {
sys::nix_libutil_init(ctx.as_ptr());
}));
}
}
/// # Warning
///
/// > Rust's philosophy is that nothing happens before or after main and [ctor](https://github.com/mmastrac/rust-ctor)
/// > explicitly subverts that. The code that runs in `ctor` functions
/// > should be careful to limit itself to libc functions and code
/// > that does not rely on Rust's stdlib services.
/// > - Excerpt from the [github:mmastrac/rust-ctor README.md](https://github.com/mmastrac/rust-ctor?tab=readme-ov-file#warnings)
#[ctor]
#[cfg(feature = "exprs")]
fn init_libexpr() {
unsafe {
INIT_LIBEXPR_STATUS = Some(util::wrap::nix_fn!(|ctx: &errors::ErrorContext| unsafe {
sys::nix_libexpr_init(ctx.as_ptr());
}));
}
}