The global daemon registry (~/.beads/registry.json) could be corrupted when multiple daemons from different workspaces wrote simultaneously. Changes: - Add file locking (flock) for cross-process synchronization - Use atomic writes (temp file + rename) to prevent partial writes - Keep entire read-modify-write cycle under single lock - Add FlockExclusiveBlocking and FlockUnlock to lockfile package This prevents race conditions that caused JSON corruption like `]]`. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
29 lines
643 B
Go
29 lines
643 B
Go
//go:build js && wasm
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package lockfile
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import (
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"errors"
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"os"
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)
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var errDaemonLocked = errors.New("daemon lock already held by another process")
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func flockExclusive(f *os.File) error {
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// WASM doesn't support file locking
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// In a WASM environment, we're typically single-process anyway
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return nil // No-op in WASM
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}
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// FlockExclusiveBlocking acquires an exclusive blocking lock on the file.
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// In WASM, this is a no-op since we're single-process.
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func FlockExclusiveBlocking(f *os.File) error {
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return nil
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}
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// FlockUnlock releases a lock on the file.
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// In WASM, this is a no-op.
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func FlockUnlock(f *os.File) error {
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return nil
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}
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