Fix add data operation not working correctly

Reminder: do not get reference to hash map value... duh

Add thread-safe logging (log is in order now!).
Store data immediately to database when WE add it instead of waiting for
response from remote peers.
TODO: Test with multiple peers (not only localhost)

1 files changed, 40 insertions, 0 deletions

diff --git a/src/Log.cpp b/src/Log.cpp
new file mode 100644
index 0000000..5d77d73
--- /dev/null
+++ b/src/Log.cpp
@@ -0,0 +1,40 @@
+#include "../include/Log.hpp"
+#include <cstdarg>
+#include <mutex>
+
+static std::mutex mutexDebug;
+
+namespace odhtdb
+{
+    // TODO: Add color (if output is tty)?
+    
+    void Log::debug(const char *fmt, ...)
+    {
+        std::lock_guard<std::mutex> lock(mutexDebug);
+        va_list args;
+        va_start(args, fmt);
+        fputs("Debug: ", stdout);
+        vfprintf(stdout, fmt, args);
+        va_end(args);
+    }
+    
+    void Log::warn(const char *fmt, ...)
+    {
+        std::lock_guard<std::mutex> lock(mutexDebug);
+        va_list args;
+        va_start(args, fmt);
+        fputs("Warning: ", stdout);
+        vfprintf(stdout, fmt, args);
+        va_end(args);
+    }
+    
+    void Log::error(const char *fmt, ...)
+    {
+        std::lock_guard<std::mutex> lock(mutexDebug);
+        va_list args;
+        va_start(args, fmt);
+        fputs("Error: ", stderr);
+        vfprintf(stderr, fmt, args);
+        va_end(args);
+    }
+}