linux - What the considerations to be taken when using and extending `errno` as default error handling pattern in user code? -

-

उपयोगकर्ता कोड में पॉसिक्स ' त्रुटि नहीं त्रुटि प्रबंधन प्रणाली का उपयोग करते समय क्या विचार किया जाना चाहिए?

  • सबसे पोर्टेबल तरीके से अस्तित्व त्रुटि मैक्रोज़ का विस्तार कैसे करें?
  • क्या यह उसी त्रुटि कोड नामकरण का उपयोग करने की अनुमति है: ई ... ?
  • धागा सुरक्षितता के बारे में क्या विचार हैं?
  • क्या कोई अन्य समस्या है जो कि errno को डिफ़ॉल्ट त्रुटि हैंडलिंग पैटर्न के रूप में उपयोग करते समय प्रासंगिक है?


Comments

Post a Comment

Popular posts from this blog

java - Can't add JTree to JPanel of a JInternalFrame -

-
Image
There are two panels in my JInternalframe. I want to add TopPanel to Jtree to nominate another. But I can not add Jaitari to the top of the panel. Please help me in this piece of code: DefaultMutableTreeNode root = new DefaultMutableTreeNode ("deck"); DefaultMutableTreeNode Item Clubs = New DefaultMutableTreeNode ("Club"); AddAllCard (itemClubs); Root.add (itemClubs); DefaultMutableTreeNode item = New DefaultMutableTreeNode ("Diamonds"); AddAllCard (itemDiamonds); Root.add (itemDiamonds); DefaultMutableTreeNode Itemspads = New DefaultMutableTreeNode ("Spades"); AddAllCard (itemSpades); Root.add (itemSpades); DefaultMutableTreeNode item increases = new DefaultMutableTreeNode ("heart"); AddAllCard (itemHearts); Root.add (itemHearts); Default Trimodel Tree Model = New DefaultTreeModel (Route); Tree = new jetty (tree modal); ScrollPane = new JScrollPane (tree); // scrollPane.setViewportView (tree); . ScrollPane.getViewport () add (tr...
Read more

asp.net mvc - How to attach sql database to a javascript graph -

-
I am creating a website using asp mvc5 and I need to show some data on a view using the graph I have implemented a graph using javascript. & lt; Head & gt; & Lt; Script src = "../../ js / jquery-1.11.1.min.js" & gt; & Lt; / Script & gt; & Lt; Script src = "../../JS/chart.cript.js" & gt; & Lt; / Script & gt; @ * & Lt; Link rel = "stylesheet" href = "../../ css / last stylesheet css" & gt; * @ & Lt; / Head & gt; & Lt; Body & gt; & Lt; Div class = "col-md-12" & gt; & Lt; Div class = "panel-panel-default" & gt; & Lt; Div class = "panel-title" & gt; Daily booking & lt; / Div & gt; @ * & Lt; Div class = "panel-body" & gt; * @ @ * & Lt; Div class = "col-lg-2" & gt; & Lt; / Div & gt; & Lt; Div class = "col-lg-8" style = "background-color: # 4876FF;" & G...
Read more

c# - How to know the number of Threads created and limit the Tasks accordingly -

-
It is very clear that with task as async / await Instead of calling the asynchronous call threads , my question is: Is there a way to monitor threads while completing these tasks? This is because I can decide an optimal number of times for the thread that the thread does not eat too many CPU cycles at the same time (the CPU is intensive to handle the work). We take an example below (output is also mentioned) Although the program is completed in 5 seconds, but it has two threads (id = 1,4 ) if I increase the number of 6 instead of 2, then it creates 4 threads I know that this is the CLR thread OS thread (which is 4 in my machine Are), but I would like to know how they are mapped O (with actions) and use the same CPU. Is there any way to get it? Test code Fixed zero main (string [] args) {RunTasksWithDelays (). ); } Static async Task Run Task with Dislay () {Stopwatch S = Stopwatch. Startup (); Console.light line ("thread id =" + thread.content.trade.manag...
Read more