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[api] Pass std::function by rvalue reference in state subscriptions (#14261)

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This commit is contained in:
J. Nick Koston
2026-02-25 12:56:43 +13:00
committed by GitHub
parent cca4777f64
commit 4dc6b12ec5
3 changed files with 21 additions and 21 deletions
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esphome/components/api/api_server.h
+10 -10
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@@ -201,20 +201,20 @@ class APIServer : public Component,
};
// New const char* overload (for internal components - zero allocation)
void subscribe_home_assistant_state(const char *entity_id, const char *attribute, std::function<void(StringRef)> f);
void get_home_assistant_state(const char *entity_id, const char *attribute, std::function<void(StringRef)> f);
void subscribe_home_assistant_state(const char *entity_id, const char *attribute, std::function<void(StringRef)> &&f);
void get_home_assistant_state(const char *entity_id, const char *attribute, std::function<void(StringRef)> &&f);
// std::string overload with StringRef callback (for custom_api_device.h with zero-allocation callback)
void subscribe_home_assistant_state(std::string entity_id, optional<std::string> attribute,
std::function<void(StringRef)> f);
std::function<void(StringRef)> &&f);
void get_home_assistant_state(std::string entity_id, optional<std::string> attribute,
std::function<void(StringRef)> f);
std::function<void(StringRef)> &&f);
// Legacy std::string overload (for custom_api_device.h - converts StringRef to std::string for callback)
void subscribe_home_assistant_state(std::string entity_id, optional<std::string> attribute,
std::function<void(const std::string &)> f);
std::function<void(const std::string &)> &&f);
void get_home_assistant_state(std::string entity_id, optional<std::string> attribute,
std::function<void(const std::string &)> f);
std::function<void(const std::string &)> &&f);
const std::vector<HomeAssistantStateSubscription> &get_state_subs() const;
#endif
@@ -241,13 +241,13 @@ class APIServer : public Component,
#endif // USE_API_NOISE
#ifdef USE_API_HOMEASSISTANT_STATES
// Helper methods to reduce code duplication
void add_state_subscription_(const char *entity_id, const char *attribute, std::function<void(StringRef)> f,
bool once);
void add_state_subscription_(std::string entity_id, optional<std::string> attribute, std::function<void(StringRef)> f,
void add_state_subscription_(const char *entity_id, const char *attribute, std::function<void(StringRef)> &&f,
bool once);
void add_state_subscription_(std::string entity_id, optional<std::string> attribute,
std::function<void(StringRef)> &&f, bool once);
// Legacy helper: wraps std::string callback and delegates to StringRef version
void add_state_subscription_(std::string entity_id, optional<std::string> attribute,
std::function<void(const std::string &)> f, bool once);
std::function<void(const std::string &)> &&f, bool once);
#endif // USE_API_HOMEASSISTANT_STATES
// No explicit close() needed — listen sockets have no active connections on
// failure/shutdown. Destructor handles fd cleanup (close or abort per platform).