Made BufferUtils a first class citizen

core-buffer/src/BufferUtils.cpp

@@ -0,0 +1,35 @@
+using namespace std;
+
+#include "BufferUtils.hpp"
+#include <sstream>
+
+const size_t BufferUtils::FILE_MOD = 1000;
+const size_t BufferUtils::FOLDER_MOD = 100000;
+
+string BufferUtils::get_filename(
+        std::string root_folder,
+        std::string device_name,
+        uint64_t pulse_id)
+{
+    uint64_t folder_base = pulse_id / FOLDER_MOD;
+    folder_base *= FOLDER_MOD;
+
+    uint64_t file_base = pulse_id / FILE_MOD;
+    file_base *= FILE_MOD;
+
+    stringstream folder;
+    folder << root_folder << "/";
+    folder << device_name << "/";
+    folder << folder_base << "/";
+    folder << file_base << ".bin";
+
+    return folder.str();
+}
+
+size_t BufferUtils::get_file_frame_index(uint64_t pulse_id)
+{
+    uint64_t file_base = pulse_id / FILE_MOD;
+    file_base *= FILE_MOD;
+
+    return pulse_id - file_base;
+}