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Terminal: heap fragmentation stat (#1740)
* debug: heap fragmentation stat * Rework method detection - return check integral type as a result of detection instead of method type - type-tagging instead of enable_if * fix alias * typo * only need one bool_type instance * Move heap debug into HeapStats header - don't show fragmentation stats on the first call - prettify fragmentation display - pack function params into helper struct - naming * pass external flag instead * add missing prototypes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| /* | ||
| Show extended heap stats when EspClass::getHeapStats() is available | ||
| */ | ||
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| #pragma once | ||
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| #include <type_traits> | ||
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| struct heap_stats_t { | ||
| uint32_t available; | ||
| uint16_t usable; | ||
| uint8_t frag_pct; | ||
| }; | ||
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| namespace EspClass_has_getHeapStats { | ||
| struct _detector { | ||
| template<typename T, typename = decltype( | ||
| std::declval<T>().getHeapStats(0,0,0))> | ||
| static std::true_type detect(int); | ||
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| template<typename> | ||
| static std::false_type detect(...); | ||
| }; | ||
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| template <typename T> | ||
| struct detector : public _detector { | ||
| using result = decltype( | ||
| std::declval<detector>().detect<T>(0)); | ||
| }; | ||
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| template <typename T> | ||
| struct typed_check : public detector<T>::result { | ||
| }; | ||
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| typed_check<EspClass> check{}; | ||
| }; | ||
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| template <typename T> | ||
| void _getHeapStats(std::true_type&, T& instance, heap_stats_t& stats) { | ||
| instance.getHeapStats(&stats.available, &stats.usable, &stats.frag_pct); | ||
| } | ||
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| template <typename T> | ||
| void _getHeapStats(std::false_type&, T& instance, heap_stats_t& stats) { | ||
| stats.available = instance.getFreeHeap(); | ||
| stats.usable = 0; | ||
| stats.frag_pct = 0; | ||
| } | ||
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| void getHeapStats(heap_stats_t& stats) { | ||
| _getHeapStats(EspClass_has_getHeapStats::check, ESP, stats); | ||
| } | ||
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| // WTF | ||
| // Calling ESP.getFreeHeap() is making the system crash on a specific | ||
| // AiLight bulb, but anywhere else it should work as expected | ||
| static bool _heap_value_wtf = false; | ||
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| heap_stats_t getHeapStats() { | ||
| heap_stats_t stats; | ||
| if (_heap_value_wtf) { | ||
| stats.available = 9999; | ||
| stats.usable = 9999; | ||
| stats.frag_pct = 0; | ||
| return stats; | ||
| } | ||
| getHeapStats(stats); | ||
| return stats; | ||
| } | ||
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| void wtfHeap(bool value) { | ||
| _heap_value_wtf = value; | ||
| } | ||
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| unsigned int getFreeHeap() { | ||
| return getHeapStats().available; | ||
| } | ||
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| static unsigned int _initial_heap_value = 0; | ||
| void setInitialFreeHeap() { | ||
| _initial_heap_value = getFreeHeap(); | ||
| } | ||
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| unsigned int getInitialFreeHeap() { | ||
| if (0 == _initial_heap_value) { | ||
| setInitialFreeHeap(); | ||
| } | ||
| return _initial_heap_value; | ||
| } | ||
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| void infoMemory(const char* name, const heap_stats_t& stats) { | ||
| infoMemory(name, getInitialFreeHeap(), stats.available); | ||
| } | ||
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| void infoHeapStats(const char* name, const heap_stats_t& stats) { | ||
| DEBUG_MSG_P( | ||
| PSTR("[MAIN] %-6s: %5u bytes available | %5u bytes lost (%2u%%) | %5u bytes free (%2u%%)\n"), | ||
| name, | ||
| stats.available, | ||
| (stats.available - stats.usable), | ||
| stats.frag_pct, | ||
| stats.usable, | ||
| (100 - stats.frag_pct) | ||
| ); | ||
| } | ||
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| void infoHeapStats(bool show_frag_stats = true) { | ||
| infoMemory("Heap", getHeapStats()); | ||
| if (show_frag_stats && EspClass_has_getHeapStats::check) { | ||
| infoHeapStats("Heap", getHeapStats()); | ||
| } | ||
| } |
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