[pbs-devel] applied: [PATCH proxmox-backup] fix: proxmox-backup-manager network reload wait on worker
Gabriel Goller
g.goller at proxmox.com
Fri Aug 30 10:18:22 CEST 2024
On 29.08.2024 14:17, Wolfgang Bumiller wrote:
>applied, thanks
>
>On Wed, Aug 21, 2024 at 12:22:36PM GMT, Gabriel Goller wrote:
>> Make the `network reload` command in proxmox-backup-manager wait on the
>> api handler's workertask. Otherwise the task would be killed when the
>> client exits.
>>
>> Signed-off-by: Gabriel Goller <g.goller at proxmox.com>
>> ---
>> src/bin/proxmox_backup_manager/network.rs | 21 +++++++++++++++++++--
>> 1 file changed, 19 insertions(+), 2 deletions(-)
>>
>> diff --git a/src/bin/proxmox_backup_manager/network.rs b/src/bin/proxmox_backup_manager/network.rs
>> index deac5b1b2960..0f0a50a8932a 100644
>> --- a/src/bin/proxmox_backup_manager/network.rs
>> +++ b/src/bin/proxmox_backup_manager/network.rs
>> @@ -129,6 +129,24 @@ fn pending_network_changes(
>> Ok(Value::Null)
>> }
>>
>> +#[api()]
>> +/// Reload network changes
>> +async fn reload_network_changes(
>> + mut param: Value,
>> + rpcenv: &mut dyn RpcEnvironment,
>> +) -> Result<Value, Error> {
>> + param["node"] = "localhost".into();
>> +
>> + let info = &api2::node::network::API_METHOD_RELOAD_NETWORK_CONFIG;
>> + let result = match info.handler {
>> + ApiHandler::Async(handler) => (handler)(param, info, rpcenv).await?,
>> + _ => unreachable!(),
>> + };
>
>Note: we have the above pattern a lot. For `Schema` we already have a
>bunch of `const fn unwrap_<type>_schema()`.
>We can now also use `const {}` expressions, so maybe we should have
>something like this for `ApiHandler` as well, with all these handler
>functions then using something like:
>
> let handler = const { info.handler.unwrap_async_handler() };
> let result = (handler)(param, info, rpcenv).await?
>
Hmm on a second glance, I don't think we can do this currently.
I tried this:
pub const fn unwrap_async_handler(&self) -> &ApiAsyncHandlerFn {
match self {
ApiHandler::Async(a) => a,
_ => panic!("unwrap_async_handler called on wrong apihandler"),
}
}
But it doesn't compile because we have a &mut reference in
`ApiAsyncHandlerFn` and mutable references in `const fn`'s currently
don't work [0].
Obviously we can make everything non-const and still improve the
readability.
[0]: https://github.com/rust-lang/rust/issues/57349.
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