rediscc is an R package that provides a tiny client for Redis. It is
based on hiredis C library and was created as a minimalistic
replacement for rredis which did not scale well in our production
environment. So far only the absolutely bare minimum is implemented to
support RCloud RCS calls - many thanks go to the hiredis team for
creating such a nice library!
For compatibility with rredis it uses the same serialization wrapper
(values are serialized using binary R serialization) such that existing
databases can be re-used.
In addition, it supports auto-reconnect and timeouts on all operations.
hiredis is bundled with the R package, so it is not needed as a
compile-time dependency. This is for our deployment reasons, not
anything deep - if you remove everything but credis.c from src and
add PKG_CPPFLAGS=-I/usr/local/include/hiredis PKG_LIBS=-lhiredis or
similar then you can build it against external hiredis.
It supports parallel connections, so you get a connection handle.
c <- redis.connect()
redis.set(c, "foo", "bar")
redis.get(c, "foo")
## it is vectorized
redis.set(c, list(a=1, b="gee", c="duh"))
redis.get(c, c("a", "b, "foo"), TRUE)
redis.keys(c)
## clean up what we created
redis.rm(c, c("a", "b", "c", "foo", "bar")
redis.close(c)