ruby - What is Camping::Server.start invoking in /bin/camping? -


i'm studying how camping web framework works right now, , don't understand camping::server.start @ line 10 in /bin/camping doing.

i expected call start method in /lib/camping/server.rb @ line 131, , put simple puts 'hello' statement @ beginning of method, expecting statement invoked when ran /bin/camping. however, never saw puts statement called, can assume it's not start method getting called.

i feel i'm missing obvious here. here link camping github page , relevant sections of code:

github: https://github.com/camping/camping

from /bin/camping:

#!/usr/bin/env ruby  $:.unshift file.dirname(__file__) + "/../lib"  require 'camping' require 'camping/server'  begin    camping::server.start rescue optionparser::parseerror => ex    puts "did error"    stderr.puts "!! #{ex.message}"    puts "** use `#{file.basename($0)} --help` more details..."    exit 1 end

from /lib/server.rb:

def start  if options[:server] == "console"     puts "** starting console"     @reloader.reload!     r = @reloader     eval("self", toplevel_binding).meta_def(:reload!) { r.reload!; nil }     argv.clear     irb.start     exit  else     name = server.name[/\w+$/]     puts "** starting #{name} on #{options[:host]}:#{options[:port]}"     super  end end

my puts 'hello' on camping::server.start wasn't getting called because didn't understand how static methods defined in ruby.

start being called statically, , realize start method looking @ in snippet wasn't static method, meant start method getting called. looked camping::server , realized inherited rack::server, has following method: 

def self.start(options = nil)    new(options).start end

that method getting called, not 1 on /lib/camping/server.rb. had been looking @ wrong method.


Comments

Post a Comment

Popular posts from this blog

c++ - End of file on pipe magic during open -

i have c++ application in starting process(wireshark) following. if (fp == null){ fp = popen(processpath, "r"); //processpath process want start if (!fp){ throw std::invalid_argument("cannot start process"); } fprintf(fp, d_msg);//d_msg input want provide process } else if(fp != null){ fprintf(fp, d_msg); } the problem when execute c++ application, start wireshark error end of file on pipe magic during open what should avoid that? also tried using mkfifo create named pipe , execute it. used this: if (fp == null){ system("mkfifo /tmp/mine.pcap"); fp = popen("wireshark -k -i /tmp/mine.pcap", "r"); if (!fp){ dout << "cannot start wireshark"<<std::endl; throw std::invalid_argument("cannot start wireshark"); } input = fopen("/tmp/mine.pcap", "wb"); fprintf(input , d_msg); fclose(input)...
Read more

basic authentication with http post params android -

i doing basic authentication passing username , password , using basicnamevaluepair sending post params response service. my method: public stringbuilder callservicehttppost(string username, string password, string type) { // create new httpclient , post header httpclient httpclient = new defaulthttpclient(); httppost httppost = new httppost(webservice + type); httpresponse response = null; stringbuilder total = new stringbuilder(); try { url url = new url(webservice + type); /*string base64encodedcredentials = base64.encodetostring((username + ":" + password).getbytes(), base64.url_safe | base64.no_wrap);*/ string base64encodedcredentials = "basic " + base64.encodetostring( (username + ":" + password).getbytes(), base64.no_wrap); httppost.setheader("auth...
Read more

data.table making a copy of table in R -

i doing this: myfun <- function(inputvar_vec){ # inputvar_vec input vector # # result = output vector return(result) } dt[, result := lapply(.sd, myfun), = byvar, .sdcols = inputvar] i getting following warning: warning message: `in `[.data.table`(df1, , `:=`(prop, lapply(.sd, propeventinlastk)), : invalid .internal.selfref detected , fixed taking copy of whole table, := can add new column reference. @ earlier point, data.table has been copied r (or been created manually using structure() or similar). (and more stuff) .... ` my guess because stacking result vectors (after operation), copy being made? can suggest method remove warning? have done using apply functions , thought should extendable here too. my other question is: can pass chunk of rows data frame (subsetted using statement), , call function myfun operate on that? adding example requested # generate data n = 10000 default=na value = 1 df = data.table(id = sample(1:5000, n, replace=true), ...
Read more