wehub-resource-sync
28 lines
1.3 KiB
Go
28 lines
1.3 KiB
Go
package config
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import "sync"
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// userEditMu serializes in-process read-modify-write cycles on the user config
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// file. LoadForEdit+SaveTo is not atomic: two concurrent editors each load,
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// mutate their own copy, and save — the second save silently drops the first
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// writer's fields (e.g. bot auto-session mappings vs. a settings-page save).
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// Cross-process writers still race. Every runtime in-process editor takes this
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// lock around its load→mutate→save cycle: bot mapping/pairing persistence,
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// desktop settings and MCP writers, serve effort switches, controller skill
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// toggles, the CLI TUI / `reasonix config` write paths, and `reasonix setup`'s
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// commit-time operation replay.
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// Desktop's read-only config loads (tray/view/bot-runtime paths) never write:
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// they apply legacy migrations in memory only, and the migrated form reaches
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// disk through the first locked write path (loadDesktopUserConfigForEdit,
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// called with this lock held).
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var userEditMu sync.Mutex
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// LockUserConfigEdits acquires the process-wide user-config edit lock and
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// returns the unlock. Hold it across the full LoadForEdit→mutate→SaveTo
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// cycle; do not hold it across controller rebuilds or other slow non-config
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// work, and never call another LockUserConfigEdits taker while holding it.
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func LockUserConfigEdits() func() {
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userEditMu.Lock()
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return userEditMu.Unlock
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}
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