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My app reads bytes from a TCP socket and needs to buffer them up, so that I can extract messages from them later. Due to the nature of TCP I may get partial or multiple messages in one read, so after each read I would like to inspect the buffer and extract as many full messages as are available. Therefore I want a class that allows me to do the following: append arbitrary byte[] data to it inspect the content without consuming it, in particular checking the amount of content and also searching for the existence of a certain byte or bytes extract and consume part of the data as a byte[], while leaving the rest in there for a future read I expect that what I want can be done with 1 or more existing classes in the .NET library, but I'm not sure which ones. System.IO.MemoryStream looks close to what I want, but (a) it isn't clear whether it's suited to being used as a buffer (does the read data get removed from the capacity?) and (b) reads and writes seem to happen at the same place - "The current position of a stream is the position at which the next read or write operation could take place." - which is not what I want. I need to be writing to the end and reading from the front.

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