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Make hook execution parallel for NonMutableHookDataAccessor impl for Aspect

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This commit is contained in:
Matthias Beyer 2016-03-04 21:34:17 +01:00
parent 7102a57808
commit 5ba260943b
1 changed files with 30 additions and 7 deletions
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31
libimagstore/src/hook/aspect.rs
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@ -89,18 +89,41 @@ impl MutableHookDataAccessor for Aspect {
impl NonMutableHookDataAccessor for Aspect {
fn access(&self, fle: &FileLockEntry) -> HookResult<()> {
use crossbeam;
use std::thread;
use std::thread::JoinHandle;
use hook::error::HookError as HE;
use hook::error::HookErrorKind as HEK;
let accessors : Vec<HDA> = self.hooks.iter().map(|h| h.accessor()).collect();
if !accessors.iter().all(|a| match a { &HDA::NonMutableAccess(_) => true, _ => false }) {
unimplemented!()
}
for accessor in accessors {
let threads : Vec<HookResult<()>> = accessors
.iter()
.map(|accessor| {
crossbeam::scope(|scope| {
scope.spawn(|| {
match accessor {
HDA::NonMutableAccess(accessor) => try!(accessor.access(fle)),
&HDA::NonMutableAccess(accessor) => accessor.access(fle),
_ => unreachable!(),
}
}
Ok(())
.map_err(|e| ()) // TODO: We're losing the error cause here
})
})
})
.map(|i| i.join().map_err(|_| HE::new(HEK::HookExecutionError, None)))
.collect();
threads
.into_iter()
.fold(Ok(()), |acc, elem| {
acc.and_then(|a| {
elem.map(|_| a).map_err(|_| HE::new(HEK::HookExecutionError, None))
})
})
}
}