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Make defer FIFO

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This commit is contained in:
J. Nick Koston 2025-07-04 07:35:24 -05:00
parent 068594be5e
commit ba4c268956
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2 changed files with 3 additions and 50 deletions
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42
esphome/components/web_server/web_server.cpp
View File

@ -244,11 +244,7 @@ void DeferredUpdateEventSourceList::on_client_disconnect_(DeferredUpdateEventSou
}
#endif
WebServer::WebServer(web_server_base::WebServerBase *base) : base_(base) {
#ifdef USE_ESP32
to_schedule_lock_ = xSemaphoreCreateMutex();
#endif
}
WebServer::WebServer(web_server_base::WebServerBase *base) : base_(base) {}
#ifdef USE_WEBSERVER_CSS_INCLUDE
void WebServer::set_css_include(const char *css_include) { this->css_include_ = css_include; }
@ -297,30 +293,7 @@ void WebServer::setup() {
// getting a lot of events
this->set_interval(10000, [this]() { this->events_.try_send_nodefer("", "ping", millis(), 30000); });
}
void WebServer::loop() {
#ifdef USE_ESP32
// Check atomic flag first to avoid taking semaphore when queue is empty
if (this->to_schedule_has_items_.load(std::memory_order_relaxed) && xSemaphoreTake(this->to_schedule_lock_, 0L)) {
std::function<void()> fn;
if (!to_schedule_.empty()) {
// scheduler execute things out of order which may lead to incorrect state
// this->defer(std::move(to_schedule_.front()));
// let's execute it directly from the loop
fn = std::move(to_schedule_.front());
to_schedule_.pop_front();
if (to_schedule_.empty()) {
this->to_schedule_has_items_.store(false, std::memory_order_relaxed);
}
}
xSemaphoreGive(this->to_schedule_lock_);
if (fn) {
fn();
}
}
#endif
this->events_.loop();
}
void WebServer::loop() { this->events_.loop(); }
void WebServer::dump_config() {
ESP_LOGCONFIG(TAG,
"Web Server:\n"
@ -2061,16 +2034,7 @@ void WebServer::add_sorting_group(uint64_t group_id, const std::string &group_na
}
#endif
void WebServer::schedule_(std::function<void()> &&f) {
#ifdef USE_ESP32
xSemaphoreTake(this->to_schedule_lock_, portMAX_DELAY);
to_schedule_.push_back(std::move(f));
this->to_schedule_has_items_.store(true, std::memory_order_relaxed);
xSemaphoreGive(this->to_schedule_lock_);
#else
this->defer(std::move(f));
#endif
}
void WebServer::schedule_(std::function<void()> &&f) { this->defer(std::move(f)); }
} // namespace web_server
} // namespace esphome

11
esphome/components/web_server/web_server.h
View File

@ -14,12 +14,6 @@
#include <string>
#include <utility>
#include <vector>
#ifdef USE_ESP32
#include <freertos/FreeRTOS.h>
#include <freertos/semphr.h>
#include <deque>
#include <atomic>
#endif
#if USE_WEBSERVER_VERSION >= 2
extern const uint8_t ESPHOME_WEBSERVER_INDEX_HTML[] PROGMEM;
@ -522,11 +516,6 @@ class WebServer : public Controller, public Component, public AsyncWebHandler {
const char *js_include_{nullptr};
#endif
bool expose_log_{true};
#ifdef USE_ESP32
std::deque<std::function<void()>> to_schedule_;
SemaphoreHandle_t to_schedule_lock_;
std::atomic<bool> to_schedule_has_items_{false};
#endif
};
} // namespace web_server