Hi everyone, I'd appreciate if someone could help me to understand what is happening.
I'm attempting to connect R to the broker platform using tcp on localhost 5333. Just to learn how use make.socket, write.socket, ..functions I wrote simple code: #prepare string command to subscribe ask and bid price on Italian stock #this should be a push stream like: #First stream: #outcome=OK|item=MI.EQCON.2552 #Update stream: #MI.EQCON.1|21|10|22|11|23|12|24|5|20|19|7.5 #MI.EQCON.2552|||||||||||7.3 #.................................................. #until the buffer is full. msg2<-'function=subscribe|item=MI.EQCON.1|schema=ask1;bid1' #open socket connection socketPointer<-make.socket(host='localhost',port=5333,fail=TRUE,server=FALSE) #send the command line write.socket(socket=socketPointer,string=msg2) #read data read.socket(socket=socketPointer,maxlen=252,loop=FALSE) #send command to unsuscribe write.socket(socket=sockPointer,string=unsub) #close socket close.socket(sockPointer) The code remain stick on read.socket function, so I decided to use debug functionality: This is the read.socket source: debugging in: read.socket(socket = s.p, maxlen = 252, loop = FALSE) debug: { if (length(port <- as.integer(socket$socket)) != 1L) stop("invalid 'socket' argument") maxlen <- as.integer(maxlen) buffer <- paste(rep.int("#", maxlen), collapse = "") repeat { tmp <- .C("Rsockread", port, buffer = buffer, len = maxlen, PACKAGE = "base") rval <- substr(tmp$buffer, 1L, tmp$len) if (nzchar(rval) || !loop) break } rval } everything works fine up to .C("Rsockread", port, buffer = buffer, len = maxlen, PACKAGE = "base") when execution arrive to the c function call R goes in a some kind a eternal loop ! Thanks very much Massimo Salese -- View this message in context: http://r.789695.n4.nabble.com/read-socket-utils-package-somthing-is-going-wrong-tp4531374p4531374.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.