Use Interlocked to implement thread synchronization and interlocked to implement thread

Use Interlocked to implement thread synchronization and interlocked to implement thread

There are many ways to synchronize threads. If only integer data is shared, Interlocked can be used for synchronization.

The following example shows how to use Interlocked for synchronization.

I. Example description

1 int sum = 0; 2 Parallel. for (1, 10001, I => 3 {4 sum + = 1; 5}); 6 tbContent. text = "Result:" + sum;

Looking at the code above, after 10000 Parallel Loops, the final value of the sum variable is expected to be 10000. However, due to resource conflicts, the final sum value is not determined. In most cases, the sum value is less than 10000.

Ii. Solutions

There are many ways to synchronize, such as synchronizing an object. However, Interlocked is used for synchronization. The Code is as follows:

1 int sum = 0; 2 Parallel. for (1, 10001, I => 3 {4 Interlocked. increment (ref sum); 5}); 6 tbContent. text = "Result:" + sum;

Run the command. The sum value is 10000 each time it is run.