From 430f999f00224a68a967e7122894b469d5ee60bf Mon Sep 17 00:00:00 2001
From: aunsane <aunsane@gmail.com>
Date: Fri, 13 Apr 2018 22:54:05 +0300
Subject: Tox: added logging from toxcore - toxcore updated to 0.2.1 - toxcore
 now bootstraped with random two nodes - version bump

---
 protocols/Tox/libtox/src/toxcore/logger.c | 51 +++++++++++++++++++++++++++++--
 1 file changed, 48 insertions(+), 3 deletions(-)

(limited to 'protocols/Tox/libtox/src/toxcore/logger.c')

diff --git a/protocols/Tox/libtox/src/toxcore/logger.c b/protocols/Tox/libtox/src/toxcore/logger.c
index 18b765a385..ff34f994ea 100644
--- a/protocols/Tox/libtox/src/toxcore/logger.c
+++ b/protocols/Tox/libtox/src/toxcore/logger.c
@@ -27,6 +27,7 @@
 
 #include "logger.h"
 
+#include <assert.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -38,6 +39,42 @@ struct Logger {
     void *userdata;
 };
 
+#ifdef USE_STDERR_LOGGER
+static const char *logger_level_name(LOGGER_LEVEL level)
+{
+    switch (level) {
+        case LOG_TRACE:
+            return "TRACE";
+
+        case LOG_DEBUG:
+            return "DEBUG";
+
+        case LOG_INFO:
+            return "INFO";
+
+        case LOG_WARNING:
+            return "WARNING";
+
+        case LOG_ERROR:
+            return "ERROR";
+    }
+
+    return "<unknown>";
+}
+
+static void logger_stderr_handler(void *context, LOGGER_LEVEL level, const char *file, int line, const char *func,
+                                  const char *message, void *userdata)
+{
+    // GL stands for "global logger".
+    fprintf(stderr, "[GL] %s %s:%d(%s): %s\n", logger_level_name(level), file, line, func, message);
+}
+
+static const Logger logger_stderr = {
+    logger_stderr_handler,
+    nullptr,
+    nullptr,
+};
+#endif
 
 /**
  * Public Functions
@@ -59,10 +96,18 @@ void logger_callback_log(Logger *log, logger_cb *function, void *context, void *
     log->userdata = userdata;
 }
 
-void logger_write(Logger *log, LOGGER_LEVEL level, const char *file, int line, const char *func, const char *format,
-                  ...)
+void logger_write(const Logger *log, LOGGER_LEVEL level, const char *file, int line, const char *func,
+                  const char *format, ...)
 {
-    if (!log || !log->callback) {
+    if (!log) {
+#ifdef USE_STDERR_LOGGER
+        log = &logger_stderr;
+#else
+        assert(!"NULL logger not permitted");
+#endif
+    }
+
+    if (!log->callback) {
         return;
     }
 
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