Files
coder/agent/checkpoint.go
Spike Curtis 49b34a716a fix: fix slog to always use array of Fields (#21426)
Upgrades to slog v3 which includes a small, but backward incompatible API change to the acceptible call arguments when logging. This change allows us to verify via compile time type checking that arguments are correct and won't cause a panic, as was possible in slog v1, which this replaces (v2 was tagged but never used in coder/coder).

It also updates dependencies that also use slog and were updated.

I've left the `aibridge` dependency as a commit SHA, under the assumption that the team there (cc @pawbana @dannykopping ) will tag and update the dependency soon and on their own schedule.

Other dependencies, I pushed new tags.
2026-01-08 10:29:41 +04:00

52 lines
1.0 KiB
Go

package agent
import (
"context"
"runtime"
"sync"
"cdr.dev/slog/v3"
)
// checkpoint allows a goroutine to communicate when it is OK to proceed beyond some async condition
// to other dependent goroutines.
type checkpoint struct {
logger slog.Logger
mu sync.Mutex
called bool
done chan struct{}
err error
}
// complete the checkpoint. Pass nil to indicate the checkpoint was ok. It is an error to call this
// more than once.
func (c *checkpoint) complete(err error) {
c.mu.Lock()
defer c.mu.Unlock()
if c.called {
b := make([]byte, 2048)
n := runtime.Stack(b, false)
c.logger.Critical(context.Background(), "checkpoint complete called more than once", slog.F("stacktrace", b[:n]))
return
}
c.called = true
c.err = err
close(c.done)
}
func (c *checkpoint) wait(ctx context.Context) error {
select {
case <-ctx.Done():
return ctx.Err()
case <-c.done:
return c.err
}
}
func newCheckpoint(logger slog.Logger) *checkpoint {
return &checkpoint{
logger: logger,
done: make(chan struct{}),
}
}