UIO

everyone aware of socket programming in java. write code below: serversocket serversocket = new serversocket(1234); socket server = serversocket.accept(); we know create object of serversocket , next write serversocket.accept(); code receive client request. know serversocket.accept(); wait until new request comes. but question : serversocket.accept(); method internally? might running in while loop ? how server identify new request came serve ? internal implmentation of serversocket.accept(); method? 1 has idea this? on linux, serversocket.accept() (in native code) accept syscall (see man 2 accept ) blocks waiting suitable incoming connection. there no while loop in java code or in native code. i've no idea happens inside linux kernel, @ point no longer java question. the same apply java on windows, , c# or other programming language cared consider.

clone of svn repo git repo works fine. have problem java -dfile.encoding=utf-8 -jar c:\svn-migration-scripts.jar clean-git --force command listed above should convert remotes tags local ones. recieve: # creating annotated tags... tag has diverged: 1.0_rc1 creating annotated tag '1.0_rc1' @ refs/remotes/tags/1.0_rc1. # creating local branches... # checking obsolete tags... svn: e215004: authentication failed , interactive prompting disabled; see t --force-interactive option svn: e215004: unable connect repository @ url 'http://127.0.0.1/svn/dri velearner/tags' svn: e215004: no more credentials or tried many times. authentication failed deleting git tag '1.0_rc1' not in subversion. deleted tag '1.0_rc1' (was d200bf6) # checking obsolete branches... svn: e215004: authentication failed , interactive prompting disabled; see t --force-interactive option svn: e215004: unable connect repository @ url 'http://127.0.0.1/svn/dri velearner/branches...

i need compare 2 data sets - excel , db. while comparing need check 4 fields say, a, b c & d columns both data sets. output should tell field not matching mismatch a, mismatch b etc. how can implement in ssis? tried implementing using lookup transformations multiple times. 1st time column , non matching records mismatch , send matching records 2nd lookup column & column b comparison. no match output 2nd lookup mismatch b this.. not working after 1st lookup. use merge join transformation. sort both inputs on join key. once merged, use derived column component evaluate columns. i.e. excelcolumna == dbcolumna ? "" : ("excel: + "excelcolumna + "; db: " + dbcolumna ) name each column mismatcha, etc.

i'm running out of ideas here. i'm trying make side scroll bar control slide of whole document. can see on jsfiddle i've been experimenting couldnt work. here markup , css. can see more elaborate version @ link on bottom. welcome. html <div id="sidescroll"> <div id="sidescrollbtn"></div> </div> css #sidescroll{height:80px;width:10px;background:grey;border:1px solid black;margin:0 auto;} #sidescrollbtn{height:10px;width:10px;background:red;margin-top:10px;} http://jsfiddle.net/vinicius5581/33fx6dpr/ here's updated fiddle addresses few of issues comments. firstly, here's fiddle link: http://jsfiddle.net/dlbbntwz/ one of things wanted clean code , reduce duplication in individual up/down event handlers before. instead, have 1 function _scroller passes 1/-1 actual _scroll logic. in addition, demonstration of mouse wheel logic added. syncs up! there ugly bug, mentioned, occur if clicked do...

i mean, how write formula this: dec2013-feb2014, result = 3 (from december february, jump 3 time) jan2014-feb2014, result = 2 (from january february, jump 2 time) feb2014-feb2014, result = 1 (in same month 1 time) then have textbox1.text -> month before textbox2.text -> month after textbox3.text -> result button1.text, button result in textbox3.text if write textbox1.text = "20-may-2012", textbox2.text = "20-feb-2014", wanna textbox3.text = 22. if write textbox1.text = "20-may-2013", textbox2.text = "20-feb-2014", wanna textbox3.text = 10. if write textbox1.text = "20-dec-2013", textbox2.text = "20-feb-2014", wanna textbox3.text = 3 if write textbox1.text = "20-jan-2013", textbox2.text = "20-feb-2014", wanna textbox3.text = 2 if write textbox1.text = "10-feb-2013", textbox2.text = "20-feb-2014", wanna textbox...

i cannot access-control-allow-origin show in chrome - ultimate goal configure cors fonts rails, works in production cloudfront. though, want work in development . can see header via curl , not chrome. i using rails 4.0 , , have tried of following... i have configured gemfile , application.rb per the rack-cors example rails 4 : gemfile gem 'rack-cors', '~> 0.2.9', require: 'rack/cors' config/application.rb config.middleware.insert_before 'actiondispatch::static', 'rack::cors' allow origins '*' resource '*', :headers => :any, :methods => [:get, :options, :head] end end rails console 2.0.0-p481 :001 > rails.env => "development" 2.0.0-p481 :002 > hello::application.config.serve_static_assets => true bash curl -i http://localhost:5000/assets/opensans-regular-webfont.woff content-type: application/font-woff content-length: 22660...

this question has answer here: unpacking array separate variables in javascript 7 answers if have javascript function returns 2 values, possible assign values 2 variables in single statement? for example, in python might like: (var1, var2) = function() i have tried few things tres this: this.(var1, var2) = function(); i tried along lines of: this.var1, this.var2 = function(); and this.var1 = this.var2 = function(); i attempted using single array instead of multiple variables, complicate i'm trying accomplish later on because 2 variables used story x , y coordinates. the answer yes can, works in browsers experimental technology, part of harmony (ecmascript 6) proposal, it's not recommended @ time of posting answer . see destructuring assignment docs function foo(){ return ["one", "two", "three"...