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de-global services

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Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk 2024-07-27 07:17:07 +00:00
parent 7e50db4193
commit 2f85a5c1ac
36 changed files with 327 additions and 336 deletions
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53
src/service/mod.rs
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@ -1,4 +1,4 @@
#![recursion_limit = "160"]
#![recursion_limit = "192"]
#![allow(refining_impl_trait)]
mod manager;
@ -26,11 +26,7 @@ pub mod users;
extern crate conduit_core as conduit;
extern crate conduit_database as database;
use std::sync::{Arc, RwLock};
pub use conduit::{pdu, PduBuilder, PduCount, PduEvent};
use conduit::{Result, Server};
use database::Database;
pub(crate) use service::{Args, Dep, Service};
pub use crate::services::Services;
@ -38,50 +34,3 @@ pub use crate::services::Services;
conduit::mod_ctor! {}
conduit::mod_dtor! {}
conduit::rustc_flags_capture! {}
static SERVICES: RwLock<Option<&Services>> = RwLock::new(None);
pub async fn start(server: &Arc<Server>) -> Result<()> {
let d = Arc::new(Database::open(server).await?);
let s = Box::new(Services::build(server.clone(), d)?);
_ = SERVICES.write().expect("write locked").insert(Box::leak(s));
services().start().await
}
pub async fn stop() {
services().stop().await;
// Deactivate services(). Any further use will panic the caller.
let s = SERVICES
.write()
.expect("write locked")
.take()
.expect("services initialized");
let s: *mut Services = std::ptr::from_ref(s).cast_mut();
//SAFETY: Services was instantiated in init() and leaked into the SERVICES
// global perusing as 'static for the duration of service. Now we reclaim
// it to drop it before unloading the module. If this is not done there wil
// be multiple instances after module reload.
let s = unsafe { Box::from_raw(s) };
// Drop it so we encounter any trouble before the infolog message
drop(s);
}
#[must_use]
pub fn services() -> &'static Services {
SERVICES
.read()
.expect("SERVICES locked for reading")
.expect("SERVICES initialized with Services instance")
}
#[inline]
pub fn available() -> bool {
SERVICES
.read()
.expect("SERVICES locked for reading")
.is_some()
}