


`await` vs. `Task.Result`: When Should You Use Each and Why Does One Cause Deadlocks?
and : Different use of usage and cause of the deadlock await
Task.Result
When processing asynchronous code, it is important to understand the difference between
to obtain results. Confusion may lead to dead locks, especially when using APIs that implement asynchronous methods. await
Task.Result
Consider the following test scene:
In this test, we first tried to use
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|
to get the result. However, this method will be hung because we are actually performing the completion of the mission in synchronization and blocking the execution thread. Task.Result
CheckStatus
To understand why this happens, we need to check the
CheckStatus
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|
await
Because the <本> method itself contains asynchronous operations (REST API calls), trying through Task.Result
synchronous waiting will cause dead locks. The main execution thread is waiting for the results of the API call, and the API call is waiting for the main thread to continue executing.
The correct method of accessing the result of the asynchronous method is to use CheckStatus
keywords, as shown in the following test: Task.Result
Here, we use await
to release the execution thread, allowing API to call asynchronous to complete. After the operation is completed, perform recovery and obtain the results from the task without causing dead locks.
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|
should be avoided when using asynchronous methods because it may cause dead locks. await
keywords should be used to release threads and prevent such problems.
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