C++ conversion (#80)

Converted project to C++

TactilityCore/Source/Log.cpp

@@ -0,0 +1,92 @@
+#ifndef ESP_PLATFORM
+
+#include "Log.h"
+
+#ifdef ESP_PLATFORM
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#else
+#include <cstdint>
+#include <sys/time.h>
+#endif
+
+namespace tt {
+
+static char loglevel_to_prefix(LogLevel level) {
+    switch (level) {
+        case LogLevelError:
+            return 'E';
+        case LogLevelWarning:
+            return 'W';
+        case LogLevelInfo:
+            return 'I';
+        case LogLevelDebug:
+            return 'D';
+        case LogLevelTrace:
+            return 'T';
+        default:
+            return '?';
+    }
+}
+
+static const char* loglevel_to_colour(LogLevel level) {
+    switch (level) {
+        case LogLevelError:
+            return "\033[1;31m";
+        case LogLevelWarning:
+            return "\033[33m";
+        case LogLevelInfo:
+            return "\033[32m";
+        case LogLevelDebug:
+            return "\033[1;37m";
+        case LogLevelTrace:
+            return "\033[37m";
+        default:
+            return "";
+    }
+}
+
+uint64_t log_timestamp() {
+#ifdef ESP_PLATFORM
+    if (xTaskGetSchedulerState() == taskSCHEDULER_NOT_STARTED) {
+        return clock() / CLOCKS_PER_SEC * 1000;
+    }
+    static uint32_t base = 0;
+    if (base == 0 && xPortGetCoreID() == 0) {
+        base = clock() / CLOCKS_PER_SEC * 1000;
+    }
+    TickType_t tick_count = xPortInIsrContext() ? xTaskGetTickCountFromISR() : xTaskGetTickCount();
+    return base + tick_count * (1000 / configTICK_RATE_HZ);
+#else
+    static uint64_t base = 0;
+
+    struct timeval time {};
+    gettimeofday(&time, nullptr);
+    uint64_t now = ((uint64_t)time.tv_sec * 1000) + (time.tv_usec / 1000);
+    if (base == 0) {
+        base = now;
+    }
+    return now - base;
+#endif
+}
+
+void log(LogLevel level, const char* tag, const char* format, ...) {
+    printf(
+        "%s%c (%lu) %s: ",
+        loglevel_to_colour(level),
+        loglevel_to_prefix(level),
+        log_timestamp(),
+        tag
+    );
+
+    va_list args;
+    va_start(args, format);
+    vprintf(format, args);
+    va_end(args);
+
+    printf("\033[0m\n");
+}
+
+} // namespace
+
+#endif