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This commit is contained in:
J. Nick Koston
2025-08-01 21:05:28 -10:00
parent f1650fc647
commit 015bb6f602
1 changed files with 43 additions and 41 deletions
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84
esphome/core/application.h
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@@ -454,12 +454,7 @@ class Application {
const char *comment_{nullptr};
const char *compilation_time_{nullptr};
// size_t members
size_t dump_config_at_{SIZE_MAX};
// Vectors (largest members)
StaticVector<Component *, ESPHOME_COMPONENT_COUNT> components_{};
// std::vector (3 pointers each: begin, end, capacity)
// Partitioned vector design for looping components
// =================================================
// Components are partitioned into [active | inactive] sections:
@@ -477,6 +472,48 @@ class Application {
// and active_end_ is incremented
// - This eliminates branch mispredictions from flag checking in the hot loop
std::vector<Component *> looping_components_{};
#ifdef USE_SOCKET_SELECT_SUPPORT
std::vector<int> socket_fds_; // Vector of all monitored socket file descriptors
#endif
// std::string members (typically 24-32 bytes each)
std::string name_;
std::string friendly_name_;
// size_t members
size_t dump_config_at_{SIZE_MAX};
// 4-byte members
uint32_t last_loop_{0};
uint32_t loop_component_start_time_{0};
#ifdef USE_SOCKET_SELECT_SUPPORT
int max_fd_{-1}; // Highest file descriptor number for select()
#endif
// 2-byte members (grouped together for alignment)
uint16_t loop_interval_{16}; // Loop interval in ms (max 65535ms = 65.5 seconds)
uint16_t looping_components_active_end_{0}; // Index marking end of active components in looping_components_
uint16_t current_loop_index_{0}; // For safe reentrant modifications during iteration
// 1-byte members (grouped together to minimize padding)
uint8_t app_state_{0};
bool name_add_mac_suffix_;
bool in_loop_{false};
volatile bool has_pending_enable_loop_requests_{false};
#ifdef USE_SOCKET_SELECT_SUPPORT
bool socket_fds_changed_{false}; // Flag to rebuild base_read_fds_ when socket_fds_ changes
#endif
#ifdef USE_SOCKET_SELECT_SUPPORT
// Variable-sized members
fd_set base_read_fds_{}; // Cached fd_set rebuilt only when socket_fds_ changes
fd_set read_fds_{}; // Working fd_set for select(), copied from base_read_fds_
#endif
// StaticVectors (largest members - contain actual array data inline)
StaticVector<Component *, ESPHOME_COMPONENT_COUNT> components_{};
#ifdef USE_DEVICES
StaticVector<Device *, ESPHOME_DEVICE_COUNT> devices_{};
@@ -548,41 +585,6 @@ class Application {
#ifdef USE_UPDATE
StaticVector<update::UpdateEntity *, ESPHOME_ENTITY_UPDATE_COUNT> updates_{};
#endif
#ifdef USE_SOCKET_SELECT_SUPPORT
std::vector<int> socket_fds_; // Vector of all monitored socket file descriptors
#endif
// String members
std::string name_;
std::string friendly_name_;
// 4-byte members
uint32_t last_loop_{0};
uint32_t loop_component_start_time_{0};
#ifdef USE_SOCKET_SELECT_SUPPORT
int max_fd_{-1}; // Highest file descriptor number for select()
#endif
// 2-byte members (grouped together for alignment)
uint16_t loop_interval_{16}; // Loop interval in ms (max 65535ms = 65.5 seconds)
uint16_t looping_components_active_end_{0};
uint16_t current_loop_index_{0}; // For safe reentrant modifications during iteration
// 1-byte members (grouped together to minimize padding)
uint8_t app_state_{0};
bool name_add_mac_suffix_;
bool in_loop_{false};
volatile bool has_pending_enable_loop_requests_{false};
#ifdef USE_SOCKET_SELECT_SUPPORT
bool socket_fds_changed_{false}; // Flag to rebuild base_read_fds_ when socket_fds_ changes
// Variable-sized members at end
fd_set base_read_fds_{}; // Cached fd_set rebuilt only when socket_fds_ changes
fd_set read_fds_{}; // Working fd_set for select(), copied from base_read_fds_
#endif
};
/// Global storage of Application pointer - only one Application can exist.