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Recently, I took over the company's mobile game work. Some of them were applications and games developed based on the Symbian platform, so I began to learn related development. Due to the urgency of time, there is no way to study from the first chapter, so we still use the source code + Google method to learn, this part of the content will be scattered, but write down it first.
The following describes the cactiveschedulerwait operations.
Article , Re
the file
Bool setendoffile (
Handle hfile );
Usually, when you close a file, the system is responsible for setting the end Of the file. This function truncates the file size or increases the file size based on the current position of the file pointer of the file object.
// The following Code sets the object size to 1024 bytes.
Handle hfile = createfile (...);
Large_integer lidistancetomove;
Lidistancetomove. quadpart = 1024;
Setfilepointerex (hfile,
Old Zhang loves drinking tea, without talking nonsense, and boiling water.
Appearance character: Lao Zhang, two kettle (ordinary kettle for short; ring kettle for short ).
1. Old Zhang put the kettle on the fire and waited for the water to open. (Synchronization Blocking)
Lao Zhang thinks he is a bit silly.
2. Old Zhang put the kettle on the fire, went to the living room to watch TV, and went to the kitchen from time to see if the water was open. (Non
Old Zhang loves drinking tea, without talking nonsense, and boiling water.
Appearance character: Lao Zhang, two kettle (ordinary kettle for short; ring kettle for short ).
1. Old Zhang put the kettle on the fire and waited for the water to open. (Synchronization Blocking)
Lao Zhang thinks he is a bit silly.
2. Old Zhang put the kettle on the fire, went to the living room to watch TV, and went to the kitchen from time to see if the water was open. (Non
all the time I've been writing jquery code, the AJAX load data has to take into account the code's order of operations. Recent projects have been used to synchronize with Ajax. This synchronization means that when the JS code is loaded into the current AJAX will be the page all the code to stop loading, the page out of animation state, when this Ajax execution will continue to run other code page suspended animation state lifted.
object includes, the data model and the view namePublic Modelandview Select (user user) {Modelandview mav=new Modelandview ("View_value");The view can be written as above, or it can be written as follows, that is, two ways to assign a viewMav.setviewname ("View_value"); Specify the view nameMav.addobject ("Key1", value);Mav.addobject ("Key2", value);return modelandview;}(4), use map to store model and pass value to foreground@RequestMapping (value= "
First, IntroductionThe most important issue with AJAX requests is the order in which the code executes. The longest problem is that we define a variable to receive the return result of the Ajax asynchronous request, followed by the code, but the subsequent code is used when the variable
First of all, I am not very clear about these concepts, the following are some of my directors.Synchronous and asynchronous, blocking, and non-blocking these are two sets of concepts, saying that different things, synchronous and blocking are not necessarily linked, asynchronous and non-blocking are not necessarily linked. Synchronization and Asynchrony are only
After class, I sat down and quietly summarized what I learned today.First, synchronous requests and asynchronous requestsSynchronous request,Using the main thread to obtain all the request data at a time leads to a relatively easy problem.When the requested data is large, a choppy phenomenon occurs, that is, the main t
If you want to have a Kung Pao Chicken Bowl:synchronization blocking: You go to the restaurant to order, and then wait there, but also shouted: OK! synchronous non-blocking: When you finish the meal at the restaurant, walk the dog.But slipped for a moment, and went back to the restaurant and shouted: "Well, no!" Asynchronous blocking: When you walk the dog, you get a call from the restaurant and say that th
Synchronous interaction: Refers to sending a request, need to wait to return, and then be able to send the next request, there is a wait process;
Asynchronous interaction: Refers to sending a request, without waiting for a return, at any time to send the next request, that is, no wait. Difference: one needs to wait,
Asynchronous replication: MySQL natively supports one-way, asynchronous replication. Asynchronous replication means there is a delay in copying data from one machine to another-most importantly this means that the data cannot be copied/applied to the slave at the same time when the application's transaction commit has
1. synchronous download (poor interaction, prone to freezing, usually used only when downloading data is small or has specific requirements ).After a synchronous request is sent, the program stops user interaction until the server returns data.
// Step 1: Create a URL
NSURL * pURL = [NSURLURLWithString: URL];
// Step
Ajax.open method, the 3rd parameter is set to synchronous or asynchronous. Prototype such as JS class library is generally default to asynchronous, that is set to true. First of all, in the case of synchronization, JS will wait f
In the fork/join skeleton, when submitting the task, there are two synchronous and asynchronous modes. It has been used for InvokeAll () the method is synchronous. Is anyThis method does not return until all of the tasks have been processed. There
Synchronous and asynchronous are commonly used to describe a method call. Once the synchronization method is started, the caller must wait until the method call returns before performing subsequent operations. Once the asynchronous method is called, the method call returns i
Java multithreading ~~~ Synchronous and asynchronous Fork/Join frameworks
In the Fork/Join framework, there are two ways to submit a task: synchronous and asynchronous. The previously used invokeAll () method is synchronous, that
mutually exclusive. With the above two wife's example explanation, is to pinch back to want to feed you eat grapes, but you have only one mouth.2. Synchronous and asynchronous synchronous vs asynchronousSynchronization: Synchronization is the sequential execution of the nex
Talking about python asynchronous IO, synchronous IO, threads and processes ~, Pythonio
[The code in the article is not indented. When I first started using the blog, it will be optimized later ~]
The threads in the main thread can communicate with each other, but the sub-processes in the parent process cannot actively communicate with each other. However, the su
invoke the WebService service1. Add a WinForm project.2. Add "Referral Service (WebService service)"3. Add a WinForm form 4. The code to write the call in Btnadd is as follows Private voidButton1_Click (Objectsender, EventArgs e) {servicereferencetest.webservicetestsoapclient Client=Newservicereferencetest.webservicetestsoapclient (); intA =int. Parse (Tbxa.text); intb =int. Parse (Tbxb.text); //
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