how does stack growing work on windows and linux? -

-

i read windows programs call _alloca on function entry grow stack if need more 4k on stack. guss every time guard page hit windows allocates new page stack, therefore _alloca accesses stack in 4k steps allocate space.

i read applies windows. how linux (or other oses) solve problem if don't need _alloca?

linux relies on heavily optimized page fault handling, happens program pushes things on stack , page fault handler extend stack on fly.


Comments

Post a Comment

Popular posts from this blog

php - How can I edit my code to echo the data of child's element where my search term was found in, in XMLReader? -

-
i new in xmlreader, , think kind of hard find tutorials/code or advanced examples. question how can transform code have now, if search (through form) term jquery give me opportunity output value of <info></info> (and later other elements) in every <name></name> found in ? this code output names of books. <?php $reader = new xmlreader(); $reader->open("books.xml"); while ($reader->read()) { switch ($reader->nodetype) { case (xmlreader::element): if ($reader->localname == "name") { $reader->read(); echo $reader->value; break; }}} ?> the xml file <?xml version="1.0" encoding="iso-8859-1"?> <library> <book isbn="781"> <name>scjp 1.5</name> <info>sun certified java programmer book</info> </book> <bo...
Read more

java - Why is BlockingQueue.take() not releasing the thread? -

-
in simple short program, notice program hangs forever because take() not release thread. according understanding, take() causes thread released though task blocked on take(). edited: this works (thanks fixing autoboxing): import java.util.arraylist; import java.util.collection; import java.util.concurrent.callable; import java.util.concurrent.executionexception; import java.util.concurrent.executorservice; import java.util.concurrent.executors; import java.util.concurrent.future; import java.util.concurrent.linkedblockingqueue; public class producersconsumers { private static int thread_count = 5; public static void main(string[] args) throws executionexception, interruptedexception { final executorservice executorpool = executors.newfixedthreadpool(thread_count); final linkedblockingqueue<long> queue = new linkedblockingqueue<long>(); collection<future<long>> collection = new arraylist<future<long>>(); ...
Read more

jQuery Ajax Render Fragments OR Whole Page -

-
i'm in throes of building application wraps mess of legacy code. page working on, need substitute fragment divs constructed on back-end -- or else need replace entire page altogether. idea there dynamically controlled flow needs satisfied before can forward legacy product. substituting fragments works fine, seen in below my_body_content swap. trouble comes when i'm trying render not fragment, whole page, in "body" swap. @ point page goes blank. i want similar errors returned server. want nice rest 404 error messages displayed on screen, legacy-product 404s show in legacy-product 404 page. yes, requirements project weird. that's not problem can fix. here's jquery invocation, names changed protect guilty: $.ajax({ url: "places/things", type: "post", data: json.stringify(somebadassobject), datatype: "text", accepts: "text/html", contenttype: "application/json; charset=...
Read more