1 files changed, 64 insertions, 0 deletions
diff --git a/lib/base/context.cpp b/lib/base/context.cpp
new file mode 100644
index 0000000..9c0a781
--- /dev/null
+++ b/lib/base/context.cpp
@@ -0,0 +1,64 @@
+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#include "base/context.hpp"
+#include <boost/thread/tss.hpp>
+#include <iostream>
+#include <sstream>
+#include <utility>
+
+using namespace icinga;
+
+static boost::thread_specific_ptr<std::vector<std::function<void(std::ostream&)>>> l_Frames;
+
+ContextFrame::ContextFrame(std::function<void(std::ostream&)> message)
+{
+	GetFrames().emplace_back(std::move(message));
+}
+
+ContextFrame::~ContextFrame()
+{
+	GetFrames().pop_back();
+}
+
+std::vector<std::function<void(std::ostream&)>>& ContextFrame::GetFrames()
+{
+	if (!l_Frames.get())
+		l_Frames.reset(new std::vector<std::function<void(std::ostream&)>>());
+
+	return *l_Frames;
+}
+
+ContextTrace::ContextTrace()
+{
+	for (auto frame (ContextFrame::GetFrames().rbegin()); frame != ContextFrame::GetFrames().rend(); ++frame) {
+		std::ostringstream oss;
+
+		(*frame)(oss);
+		m_Frames.emplace_back(oss.str());
+	}
+}
+
+void ContextTrace::Print(std::ostream& fp) const
+{
+	if (m_Frames.empty())
+		return;
+
+	fp << "\n";
+
+	int i = 0;
+	for (const String& frame : m_Frames) {
+		fp << "\t(" << i << ") " << frame << "\n";
+		i++;
+	}
+}
+
+size_t ContextTrace::GetLength() const
+{
+	return m_Frames.size();
+}
+
+std::ostream& icinga::operator<<(std::ostream& stream, const ContextTrace& trace)
+{
+	trace.Print(stream);
+	return stream;
+}