[PATCH v3 4/9] lib: Internal support for querying and creating ghost messages

From: Austin Clements This updates the message abstraction to support ghost messages: it adds a message flag that distinguishes regular messages from ghost messages, and an internal function for initializing a newly created (blank) message as a ghost message. ---

[PATCH v3 4/9] lib: Internal support for querying and creating ghost messages

From: Austin Clements amdra...@mit.edu This updates the message abstraction to support ghost messages: it adds a message flag that distinguishes regular messages from ghost messages, and an internal function for initializing a newly created (blank) message as a ghost message. --- lib/message.cc