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Merge branch 'component_memory' into integration

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J. Nick Koston 2025-07-01 14:11:58 -05:00
commit 7d7769ea5d
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1 changed files with 22 additions and 16 deletions
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38
esphome/core/component.cpp
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@ -26,11 +26,17 @@ static const char *const TAG = "component";
// 1. Components are never destroyed in ESPHome
// 2. Failed components remain failed (no recovery mechanism)
// 3. Memory usage is minimal (only failures with custom messages are stored)
static std::unique_ptr<std::vector<std::pair<const Component *, const char *>>> g_component_error_messages;
static std::unique_ptr<std::vector<std::pair<const Component *, const char *>>> &get_component_error_messages() {
static std::unique_ptr<std::vector<std::pair<const Component *, const char *>>> instance;
return instance;
}
// Setup priority overrides - freed after setup completes
// Typically < 5 entries, lazy allocated
static std::unique_ptr<std::vector<std::pair<const Component *, float>>> g_setup_priority_overrides;
static std::unique_ptr<std::vector<std::pair<const Component *, float>>> &get_setup_priority_overrides() {
static std::unique_ptr<std::vector<std::pair<const Component *, float>>> instance;
return instance;
}
namespace setup_priority {
@ -124,8 +130,8 @@ void Component::call_dump_config() {
if (this->is_failed()) {
// Look up error message from global vector
const char *error_msg = "unspecified";
if (g_component_error_messages) {
for (const auto &pair : *g_component_error_messages) {
if (get_component_error_messages()) {
for (const auto &pair : *get_component_error_messages()) {
if (pair.first == this) {
error_msg = pair.second;
break;
@ -276,18 +282,18 @@ void Component::status_set_error(const char *message) {
ESP_LOGE(TAG, "Component %s set Error flag: %s", this->get_component_source(), message);
if (strcmp(message, "unspecified") != 0) {
// Lazy allocate the error messages vector if needed
if (!g_component_error_messages) {
g_component_error_messages = std::make_unique<std::vector<std::pair<const Component *, const char *>>>();
if (!get_component_error_messages()) {
get_component_error_messages() = std::make_unique<std::vector<std::pair<const Component *, const char *>>>();
}
// Check if this component already has an error message
for (auto &pair : *g_component_error_messages) {
for (auto &pair : *get_component_error_messages()) {
if (pair.first == this) {
pair.second = message;
return;
}
}
// Add new error message
g_component_error_messages->emplace_back(this, message);
get_component_error_messages()->emplace_back(this, message);
}
}
void Component::status_clear_warning() {
@ -313,9 +319,9 @@ void Component::status_momentary_error(const std::string &name, uint32_t length)
void Component::dump_config() {}
float Component::get_actual_setup_priority() const {
// Check if there's an override in the global vector
if (g_setup_priority_overrides) {
if (get_setup_priority_overrides()) {
// Linear search is fine for small n (typically < 5 overrides)
for (const auto &pair : *g_setup_priority_overrides) {
for (const auto &pair : *get_setup_priority_overrides()) {
if (pair.first == this) {
return pair.second;
}
@ -325,14 +331,14 @@ float Component::get_actual_setup_priority() const {
}
void Component::set_setup_priority(float priority) {
// Lazy allocate the vector if needed
if (!g_setup_priority_overrides) {
g_setup_priority_overrides = std::make_unique<std::vector<std::pair<const Component *, float>>>();
if (!get_setup_priority_overrides()) {
get_setup_priority_overrides() = std::make_unique<std::vector<std::pair<const Component *, float>>>();
// Reserve some space to avoid reallocations (most configs have < 10 overrides)
g_setup_priority_overrides->reserve(10);
get_setup_priority_overrides()->reserve(10);
}
// Check if this component already has an override
for (auto &pair : *g_setup_priority_overrides) {
for (auto &pair : *get_setup_priority_overrides()) {
if (pair.first == this) {
pair.second = priority;
return;
@ -340,7 +346,7 @@ void Component::set_setup_priority(float priority) {
}
// Add new override
g_setup_priority_overrides->emplace_back(this, priority);
get_setup_priority_overrides()->emplace_back(this, priority);
}
bool Component::has_overridden_loop() const {
@ -408,7 +414,7 @@ WarnIfComponentBlockingGuard::~WarnIfComponentBlockingGuard() {}
void clear_setup_priority_overrides() {
// Free the setup priority map completely
g_setup_priority_overrides.reset();
get_setup_priority_overrides().reset();
}
} // namespace esphome