Added debug output convenience macros

include/ZeroTierDebug.h

@@ -0,0 +1,114 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2018  ZeroTier, Inc.  https://www.zerotier.com/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * You can be released from the requirements of the license by purchasing
+ * a commercial license. Buying such a license is mandatory as soon as you
+ * develop commercial closed-source software that incorporates or links
+ * directly against ZeroTier software without disclosing the source code
+ * of your own application.
+ */
+
+/**
+ * @file
+ *
+ * Debug macros
+ */
+
+#ifndef ZT_DEBUG_H
+#define ZT_DEBUG_H
+
+#if defined(__linux__) || defined(__APPLE__)
+#include <sys/syscall.h>
+#include <pthread.h>
+#include <unistd.h>
+#endif
+
+#include <string.h>
+
+#define ZT_MSG_INFO        true
+#define ZT_COLOR           true
+
+// Debug output colors
+#if defined(__APPLE__)
+		#include "TargetConditionals.h"
+#endif
+#if defined(ZT_COLOR) && !defined(_WIN32) && !defined(__ANDROID__) && !defined(TARGET_OS_IPHONE) && !defined(TARGET_IPHONE_SIMULATOR) && !defined(__APP_FRAMEWORK__)
+	#define ZT_RED   "\x1B[31m"
+	#define ZT_GRN   "\x1B[32m"
+	#define ZT_YEL   "\x1B[33m"
+	#define ZT_BLU   "\x1B[34m"
+	#define ZT_MAG   "\x1B[35m"
+	#define ZT_CYN   "\x1B[36m"
+	#define ZT_WHT   "\x1B[37m"
+	#define ZT_RESET "\x1B[0m"
+#else
+	#define ZT_RED
+	#define ZT_GRN
+	#define ZT_YEL
+	#define ZT_BLU
+	#define ZT_MAG
+	#define ZT_CYN
+	#define ZT_WHT
+	#define ZT_RESET
+#endif
+
+#define ZT_FILENAME (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__) // short
+
+#ifdef __linux__
+  #define ZT_THREAD_ID (long)0 // syscall(SYS_gettid)
+#endif
+#ifdef __APPLE__
+  #define ZT_THREAD_ID (long)0 // (long)gettid()
+#endif
+#ifdef _WIN32
+  #define ZT_THREAD_ID (long)0 // 
+#endif
+#if defined(__JNI_LIB__)
+		#include <jni.h>
+#endif
+#if defined(__ANDROID__)
+		#include <android/log.h>
+		#define ZT_LOG_TAG "ZTSDK"
+#endif
+#if defined(ZT_TRACE)
+	#if ZT_MSG_INFO == true
+		#if defined(__ANDROID__)
+			#define DEBUG_INFO(fmt, args...) ((void)__android_log_print(ANDROID_LOG_VERBOSE, ZT_LOG_TAG, \
+				"INFO : %17s:%5d:%20s: " fmt "\n", ZT_FILENAME, __LINE__, __FUNCTION__, ##args))
+		#endif
+		#if defined(_WIN32)
+			#define DEBUG_INFO(fmt, ...) fprintf(stderr, ZT_GRN "INFO [%ld]: %17s:%5d:%25s: " fmt "\n" \
+					ZT_RESET, ZT_THREAD_ID, ZT_FILENAME, __LINE__, __FUNCTION__, __VA_ARGS__)
+		#endif
+		#if defined(__linux__) or defined(__APPLE__)
+			#define DEBUG_INFO(fmt, args ...) fprintf(stderr, ZT_GRN "INFO [%ld]: %17s:%5d:%25s: " fmt "\n" \
+					ZT_RESET, ZT_THREAD_ID, ZT_FILENAME, __LINE__, __FUNCTION__, ##args)
+		#endif
+	#else
+		#define DEBUG_INFO(fmt, args...)
+	#endif
+#else // blank
+	#if defined(_WIN32)
+		#define DEBUG_INFO(...)
+	#else
+		#define DEBUG_INFO(fmt, args...)
+	#endif
+#endif
+
+#endif // _H