memsaab

About memsaab

• Simple memcached implementation, supports basic memcached commands - set, get, append, prepend, add, replace
• Supports key expiry
• Can connect to multiple clients at once (uses asynchronous I/O operations with the help of libuv)

Example Usage

• set and get

> telnet 127.0.0.1 11211
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
set test 1 0 7 #key: test, flags: 1, expiry: 0 (never), byte_count of corresponding value: 7
testing
STORED
get test
VALUE test 1 7
testing
END

• set key with expiry time to 100 seconds

set test2 0 100 4 noreply #expiry: current_time() + 100 seconds, noreply: true
testing2
get test2
VALUE test2 0 4
test
END

• get expired key. Memcached uses lazy removal meaning an expired key is only removed when it is queried

set wxyz 0 10 3 #[2023-08-11 09:56:59.224] [info] Expiry time set to 2023-08-11 09:57:09
abcd
STORED
get wxyz #[2023-08-11 09:57:19.272] [info] Item expired on 2023-08-11 09:57:09, current time: 2023-08-11 09:57:19
END

Inspired by Coding Challenges #17