the code is as follows: import static java.lang.System.out; ** * * * @author *** * @create 2018-11-13 19:48 * public class Test0001 { public static Object OBJ = new Object(); public static int i; public static class MyThread1 exte...
the child thread interrupted, resets this thread to the interrupted state after catchException. Why is the state obtained in the last line of the code still false? public class TheadStatusTest { public static void main(String[] args) throws Inter...
when any thread X executes the wait () and notify () methods on any thread Y, it needs to acquire the lock first. it is said that the locking mechanism is to solve the critical resource problem, so does it allow threads to start and pause access to any ...
Thread safety of assignment statements in java is int a = 1 thread safe? Is int b = 2; a = b thread safe? Object c = new Object () is thread safe? the answer I found in my blog is that the first thread is safe, the second doesn t know, and the t...
from a thread and process point of view, a process is the smallest unit of resource allocation, and a thread is the smallest unit of independent scheduling. multiple threads in the same process can execute concurrently, sharing process resources. Thre...
Why not provide semaphores directly in RT,CPP11? Instead, it can be implemented jointly with mutexes and conditional variables, for what consideration? ...
spin locks are easy to understand, which is constantly polling, so what is the mechanism of mutexes? What are the drawbacks of this mechanism that make it better to use spin locks in some situations? ...
when I see the conditional variables section of CPP11, I find that all conditional variables are used in conjunction with locks, but at this time they all use unique_lock instead of lock_guard,. Can you explain that? ...
<CheckboxGroup v-model="fruit"> <Checkbox v-for="(item,key) in historyData" :key="item.id" :label="item.id" :value="item.id" size="large" @on-change="select"> ...
wrote a form submission page, want to do such a requirement, click the button, first verify that the form data format is correct, if correct, and then prompt the user to authorize the pop-up window. However, now I am using the bindgetuserinfo= "getUserI...
for example, a string [1] 2132234 [4], the rule can match one, two, three , but if this string of characters is more complicated, such as [one] 111 [two] 111, it cannot accurately match the one, two, three that one needs....
I have a problem now join store product product store_id product store_id The check box is store_id , but I found that even if it is the same store_id, it will print out . What I want to achieve is that just show a store_id, and as long as t...
I disabled mock .webpackrcproxy using the ant design pro framework. I set up a proxy but it doesn t work well, and I can t request the interface in the background all the time ...