added hierarchical structure to session

1 files changed, 11 insertions, 0 deletions

diff --git a/src/server/session/README.txt b/src/server/session/README.txt
new file mode 100644
index 000000000..ac7d3d4e7
--- /dev/null
+++ b/src/server/session/README.txt
@@ -0,0 +1,11 @@
+/**
+ * These abstractions rely on NodeJS's cluster module, which allows a parent (master) process to share
+ * code with its children (workers). A simple `isMaster` flag indicates who is trying to access
+ * the code, and thus determines the functionality that actually gets invoked (checked by the caller, not internally).
+ * 
+ * Think of the master thread as a factory, and the workers as the helpers that actually run the server.
+ * 
+ * So, when we run `npm start`, given the appropriate check, initializeMaster() is called in the parent process
+ * This will spawn off its own child process (by default, mirrors the execution path of its parent),
+ * in which initializeWorker() is invoked.
+ */
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