rnsrk/wisski-cloud-distillery
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add context

Browse source 
This commit adds and passes context around to (almost) every function.
This allows cancelling (almost) every function call globally.
This commit is contained in:
Tom Wiesing 2022-11-28 13:30:08 +01:00
parent 996ecb9f80
commit 3455f491ca
No known key found for this signature in database
104 changed files with 836 additions and 511 deletions
Download patch file Download diff file Expand all files Collapse all files

26
internal/dis/component/resolver/prefixes.go
View file

@ -9,20 +9,34 @@ import (
)
// updatePrefixes starts updating prefixes
func (resolver *Resolver) updatePrefixes(io stream.IOStream, ctx context.Context) {
func (resolver *Resolver) updatePrefixes(ctx context.Context, io stream.IOStream) {
go func() {
for t := range timex.TickContext(ctx, resolver.RefreshInterval) {
io.Printf("[%s]: reloading prefixes\n", t.Format(time.Stamp))
prefixes, _ := resolver.AllPrefixes()
resolver.prefixes.Set(prefixes)
err := (func() (err error) {
ctx, cancel := context.WithTimeout(ctx, resolver.RefreshInterval)
defer cancel()
prefixes, err := resolver.AllPrefixes(ctx)
if err != nil {
return err
}
resolver.prefixes.Set(prefixes)
return nil
})()
if err != nil {
io.EPrintf("error reloading prefixes: ", err.Error())
}
}
}()
}
// AllPrefixes returns a list of all prefixes from the server.
// Prefixes may be cached on the server
func (resolver *Resolver) AllPrefixes() (map[string]string, error) {
instances, err := resolver.Instances.All()
func (resolver *Resolver) AllPrefixes(ctx context.Context) (map[string]string, error) {
instances, err := resolver.Instances.All(ctx)
if err != nil {
return nil, err
}
@ -37,7 +51,7 @@ func (resolver *Resolver) AllPrefixes() (map[string]string, error) {
// failed to fetch prefixes for this particular instance
// => skip it!
prefixes, err := instance.Prefixes().AllCached()
prefixes, err := instance.Prefixes().AllCached(ctx)
if err != nil {
lastErr = err
continue