execution

问题 I have this function that runs for several seconds with the use of setTimeout . This function is ran when a button is clicked. function complete() { var div = document.getElementById('log'); setTimeout(function(){ div.innerHTML = div.innerHTML + intro[Math.floor(Math.random() * intro.length)] + "<br>"; }, 500); setTimeout(function(){ div.innerHTML = div.innerHTML + second[Math.floor(Math.random() * second.length)] + "<br>"; }, 2560); setTimeout(function(){ div.innerHTML = div.innerHTML +

问题 In javascript there's this sweet, sweet function window.setTimeout( func, 1000 ) ; which will asynchronously invoke func after 1000 ms. I want to do something similar in C++ ( without multithreading ), so I put together a sample loop like: #include <stdio.h> struct Callback { // The _time_ this function will be executed. double execTime ; // The function to execute after execTime has passed void* func ; } ; // Sample function to execute void go() { puts( "GO" ) ; } // Global program-wide

问题 I came across the terms "concrete & symbolic execution" when I was going through the concept of concolic testing. (The article mentioned there, "CUTE: A concolic unit testing engine for C" , uses that term in its abstract section.) "The approach used builds on previous work combining symbolic and concrete execution, and more specifically, using such a combination to generate test inputs to explore all feasible execution paths." Can anyone please confirm what "concrete execution" means? In

问题 I have a few single page web apps on multiple domains that heavily rely on javascript/ajax to fetch and show content. Based on logs and search results I can tell that googlebot runs javascript on some of the domains but not on others. On some it indexes everything thats only available with js on others it doesn't even seem to run js at all. Can anybody tell me how googlebot decides what js to run and if I can to anything to get it to run js on my other domains? PS: I know that normally I

问题 I have a few single page web apps on multiple domains that heavily rely on javascript/ajax to fetch and show content. Based on logs and search results I can tell that googlebot runs javascript on some of the domains but not on others. On some it indexes everything thats only available with js on others it doesn't even seem to run js at all. Can anybody tell me how googlebot decides what js to run and if I can to anything to get it to run js on my other domains? PS: I know that normally I

问题 I'm currently pondering how best to take an AST generated using Antlr and convert it into useful objects which I can use in my program. The purpose of my grammar (apart from learning) is to create an executable (runtime interpretted) language. For example, how would I take an attribute sub-tree and have a specific Attribute class instanciated. E.g. The following code in my language: Print(message:"Hello stackoverflow") would product the following AST: My current line of thinking is that a

问题 So I am running a PHP script on my godaddy (don't hate me) virtual server which I am expecting to take around 5 minutes to finish executing. The script is CURLing pages but never holds more than 1 page at a time (it is done in a loop reusing the same variable). I modified my php5.ini file to the following: max_execution_time = 600 max_input_time = 120 memory_limit = 64M I verified through phpinfo that the ini file changes had taken effect, however I am getting an Apache 500 error after 120

问题 I am wondering if there is a way to specify a php function or file to be called every time a user visits and exits a page on my site. So if a user visits say example.com/ex.php can I have a function called before ex.php is run and after ex.php is finished? I want to be able to record the time it takes to execute php files on my site and store that so I can run queries later to analyze the info. I would prefer not to have to add code to the beginning and end of every file I want to track.

问题 Are you able to halt JavaScript execution without locking up the browser? The way you would normally halt execution is to do an infinite while() -loop, but in the case of FireFox, it locks up the browser until the loop has ended. What's your take on this? I am trying to override window.confirm() to implement my own dialog using HTML. I am doing this so I don't have to change existing code (it's a pretty big code-base). I need to be able to halt execution to allow user-input; to in turn return

问题 I'm attempting to execute an SSIS package on SQL 2005 using the following: dtexec /SQL "\MyPackageName" /SERVER mssql1 /MAXCONCURRENT " -1 " /CHECKPOINTING OFF /SET "\Package.Variables[FileFolder].Value";"\\SomeServer\Someshare\Output Batch\" this yields: Option "Batch " is not valid. The space at the end of the word Batch inside the quotes gave me a hint that perhaps it is treating the final backslash as an escape character. So I tried it this way: dtexec /SQL "\MyPackageName" /SERVER mssql1