João Salavisa
96 lines
2.9 KiB
Go
96 lines
2.9 KiB
Go
package lifecycle
|
|
|
|
// AgentExecution.metadata is written and read from unrelated goroutines: the
|
|
// launch path caches resolved profile env and MCP artifacts on it, the prompt
|
|
// path stores model overrides, and the stop path (RemoveExecution ->
|
|
// cleanupPassthroughMCPConfig) deletes the passthrough keys. Those overlap in
|
|
// practice — a scheduled stop can land while a relaunch is still writing — and
|
|
// an unsynchronized Go map crashes the process with "concurrent map writes"
|
|
// rather than corrupting quietly.
|
|
//
|
|
// The field is therefore unexported and every access goes through the helpers
|
|
// below, all of which hold metadataMu. Never hand the live map to a caller or
|
|
// store it on another struct: use MetadataSnapshot, which returns a copy.
|
|
|
|
func (e *AgentExecution) setMetadataValue(key string, value interface{}) {
|
|
if e == nil {
|
|
return
|
|
}
|
|
e.metadataMu.Lock()
|
|
defer e.metadataMu.Unlock()
|
|
if e.metadata == nil {
|
|
e.metadata = make(map[string]interface{})
|
|
}
|
|
e.metadata[key] = value
|
|
}
|
|
|
|
// deleteMetadataValues removes keys from the execution's metadata. Deleting an
|
|
// absent key is a no-op, so callers need not check first.
|
|
func (e *AgentExecution) deleteMetadataValues(keys ...string) {
|
|
if e == nil {
|
|
return
|
|
}
|
|
e.metadataMu.Lock()
|
|
defer e.metadataMu.Unlock()
|
|
if e.metadata == nil {
|
|
return
|
|
}
|
|
for _, key := range keys {
|
|
delete(e.metadata, key)
|
|
}
|
|
}
|
|
|
|
func (e *AgentExecution) metadataValue(key string) (interface{}, bool) {
|
|
if e == nil {
|
|
return nil, false
|
|
}
|
|
e.metadataMu.RLock()
|
|
defer e.metadataMu.RUnlock()
|
|
value, ok := e.metadata[key]
|
|
return value, ok
|
|
}
|
|
|
|
// metadataString returns the value at key when it is a string, and "" otherwise.
|
|
func (e *AgentExecution) metadataString(key string) string {
|
|
value, _ := e.metadataValue(key)
|
|
s, _ := value.(string)
|
|
return s
|
|
}
|
|
|
|
// metadataBool returns the value at key when it is a bool, and false otherwise.
|
|
func (e *AgentExecution) metadataBool(key string) bool {
|
|
value, _ := e.metadataValue(key)
|
|
b, _ := value.(bool)
|
|
return b
|
|
}
|
|
|
|
// metadataInt returns the value at key coerced to an int, and 0 otherwise. It
|
|
// accepts the numeric shapes metadata arrives in after a JSON round-trip.
|
|
func (e *AgentExecution) metadataInt(key string) int {
|
|
value, ok := e.metadataValue(key)
|
|
if !ok {
|
|
return 0
|
|
}
|
|
return metadataInt(map[string]interface{}{key: value}, key)
|
|
}
|
|
|
|
// MetadataSnapshot returns a shallow copy of the execution's metadata. This is
|
|
// what every caller that needs the whole map must use — passing the live map to
|
|
// an executor backend, an MCP resolver, or a persistence shape leaves it being
|
|
// read after this function returns, outside the lock.
|
|
func (e *AgentExecution) MetadataSnapshot() map[string]interface{} {
|
|
if e == nil {
|
|
return nil
|
|
}
|
|
e.metadataMu.RLock()
|
|
defer e.metadataMu.RUnlock()
|
|
if len(e.metadata) == 0 {
|
|
return nil
|
|
}
|
|
snapshot := make(map[string]interface{}, len(e.metadata))
|
|
for key, value := range e.metadata {
|
|
snapshot[key] = value
|
|
}
|
|
return snapshot
|
|
}
|