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? ...