make it work

module/src/main/cpp/logging/include/logging.hpp

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <android/log.h>
+#include <cerrno>
+#include <cstring>
+#include <string>
+
+#ifndef LOG_TAG
+# define LOG_TAG "TrickyStore"
+#endif
+
+#ifndef NDEBUG
+#define LOGD(...)  logging::log(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__)
+#define LOGV(...)  logging::log(ANDROID_LOG_VERBOSE, LOG_TAG, __VA_ARGS__)
+#else
+#define LOGD(...)
+#define LOGV(...)
+#endif
+#define LOGI(...)  logging::log(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
+#define LOGW(...)  logging::log(ANDROID_LOG_WARN, LOG_TAG, __VA_ARGS__)
+#define LOGE(...)  logging::log(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
+#define LOGF(...)  logging::log(ANDROID_LOG_FATAL, LOG_TAG, __VA_ARGS__)
+#define PLOGE(fmt, args...) LOGE(fmt " failed with %d: %s", ##args, errno, strerror(errno))
+
+namespace logging {
+    void setPrintEnabled(bool print);
+
+    [[gnu::format(printf, 3, 4)]]
+    void log(int prio, const char *tag, const char *fmt, ...);
+}

module/src/main/cpp/logging/logging.cpp

@@ -0,0 +1,36 @@
+#include <android/log.h>
+#include <unistd.h>
+#include <cstdio>
+#include <string>
+
+#include "logging.hpp"
+
+namespace logging {
+    static bool use_print = false;
+    static char prio_str[] = {
+            'V', 'D', 'I', 'W', 'E', 'F'
+    };
+
+    void setPrintEnabled(bool print) {
+        use_print = print;
+    }
+
+    void log(int prio, const char *tag, const char *fmt, ...) {
+        {
+            va_list ap;
+            va_start(ap, fmt);
+            __android_log_vprint(prio, tag, fmt, ap);
+            va_end(ap);
+        }
+        if (use_print) {
+            char buf[BUFSIZ];
+            va_list ap;
+            va_start(ap, fmt);
+            vsnprintf(buf, sizeof(buf), fmt, ap);
+            va_end(ap);
+            auto prio_char = (prio > ANDROID_LOG_DEFAULT && prio <= ANDROID_LOG_FATAL) ? prio_str[
+                    prio - ANDROID_LOG_VERBOSE] : '?';
+            printf("[%c][%d:%d][%s]:%s\n", prio_char, getpid(), gettid(), tag, buf);
+        }
+    }
+}