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[nextion] Add optional max_queue_size limit to prevent queue overflows (#8976)

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This commit is contained in:
Edward Firmo
2025-06-04 13:13:35 +02:00
committed by GitHub
parent 1dd3c6de90
commit 80fd827f8b
5 changed files with 61 additions and 2 deletions
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17
esphome/components/nextion/nextion.h
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@@ -75,6 +75,20 @@ class NextionCommandPacer {
class Nextion : public NextionBase, public PollingComponent, public uart::UARTDevice {
public:
#ifdef USE_NEXTION_MAX_QUEUE_SIZE
/**
* @brief Set the maximum allowed queue size
* @param size Max number of entries allowed in nextion_queue_
*/
inline void set_max_queue_size(size_t size) { this->max_queue_size_ = size; }
/**
* @brief Get the maximum allowed queue size
* @return Current limit (0 = unlimited)
*/
inline size_t get_max_queue_size() const { return this->max_queue_size_; }
#endif // USE_NEXTION_MAX_QUEUE_SIZE
#ifdef USE_NEXTION_COMMAND_SPACING
/**
* @brief Set the command spacing for the display
@@ -1273,6 +1287,9 @@ class Nextion : public NextionBase, public PollingComponent, public uart::UARTDe
bool is_connected() { return this->is_connected_; }
protected:
#ifdef USE_NEXTION_MAX_QUEUE_SIZE
size_t max_queue_size_{0};
#endif // USE_NEXTION_MAX_QUEUE_SIZE
#ifdef USE_NEXTION_COMMAND_SPACING
NextionCommandPacer command_pacer_{0};
#endif // USE_NEXTION_COMMAND_SPACING