51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
#include "Tactility/Mutex.h"
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#include <cstring>
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#include <sstream>
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namespace tt {
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static std::array<LogEntry, TT_LOG_ENTRY_COUNT> logEntries;
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static size_t nextLogEntryIndex;
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/**
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* This used to be a simple static value, but that crashes on device boot where early logging happens.
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* For some unknown reason, the static Mutex instance wouldn't have their constructor called before
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* the mutex is used.
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*/
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Mutex& getLogMutex() {
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static Mutex* logMutex = nullptr;
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if (logMutex == nullptr) {
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logMutex = new Mutex();
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}
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return *logMutex;
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}
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void storeLog(LogLevel level, const char* format, va_list args) {
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if (getLogMutex().lock(5 / portTICK_PERIOD_MS)) {
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logEntries[nextLogEntryIndex].level = level;
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vsnprintf(logEntries[nextLogEntryIndex].message, TT_LOG_MESSAGE_SIZE, format, args);
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nextLogEntryIndex++;
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if (nextLogEntryIndex == TT_LOG_ENTRY_COUNT) {
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nextLogEntryIndex = 0;
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}
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getLogMutex().unlock();
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}
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}
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std::unique_ptr<std::array<LogEntry, TT_LOG_ENTRY_COUNT>> copyLogEntries(std::size_t& outIndex) {
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if (getLogMutex().lock(5 / portTICK_PERIOD_MS)) {
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auto copy = std::make_unique<std::array<LogEntry, TT_LOG_ENTRY_COUNT>>(logEntries);
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getLogMutex().unlock();
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outIndex = nextLogEntryIndex;
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return copy;
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} else {
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return nullptr;
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}
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}
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} // namespace tt
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