Thanks for your suggestion, Dirk. I'll try to rewrite Rhiredis based on your approach and provide a similar rredis interface. If everything is good, I'll try to make it on CRAN if it is possible.
2013/7/24 Dirk Eddelbuettel <e...@debian.org> > > Hi Wush, > > After some more cleanup and consolidation, the package is now down to this: > > edd@max:~/git/rhiredis$ tree . > . > ├── demo > │ ├── 00Index > │ └── simpleRedisClient.R > ├── DESCRIPTION > ├── LICENSE > ├── man > │ └── rhiredis.Rd > ├── NAMESPACE > ├── R > │ └── redis.R > ├── README.md > └── src > ├── Makevars > └── Redis.cpp > > 4 directories, 10 files > edd@max:~/git/rhiredis$ > > One C++ file declaring a simple class, and the Rcpp modules declaration, > all > in about sixty lines -- see details at > https://github.com/eddelbuettel/rhiredis/blob/master/src/Redis.cpp > > The R file is just one line ensuring the module gets loaded. > > The demo/ script show how to use it: > > edd@max:~/git/rhiredis$ cat demo/simpleRedisClient.R > #!/usr/bin/Rscript > > suppressMessages(library(rhiredis)) > print(Redis) # prints the Module's docstrings > > redis <- new(Redis) > redis$exec("PING") # simple PING -> PONG test > redis$exec("PING") > > redis2 <- new(Redis, "127.0.0.1", 6379) # create 2nd instance > redis2$exec("SET testchannel 42") # write some data > redis2$exec("GET testchannel") # retrieve > > You can use any Redis command just by concatenating strings, that should > also > work for serializing arbitrary R objects into (raw) strings and back. More > user-level work could be done here. My main focus was to provide the > simple > C++ class wrapping everyhing --- without any explicit pointers, smart or > old-fashioned and not one new/delete. > > The C++ file is simple too at just sixty line, see > > > Hope this helps, and thanks for suggesting the Redis wrapper via hiredis. > > Hope this helps, Dirk > > > -- > Dirk Eddelbuettel | e...@debian.org | http://dirk.eddelbuettel.com >
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