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![What is problem ?
Token
User list
{
userList: [
0001,
0002,
0003
]
}
User Info * M
{
Id: 0001,
Name: HelloWorld
Url: https://xxx.app
}
Relationship
User Info * N
CRUD (
Creat,
Read,
Update,
Delete
)
???](https://image.slidesharecdn.com/coroutine-181204004544/75/Coroutine-4-2048.jpg)
Uploaded byPhineas Huang
Coroutine
The document discusses coroutines and their advantages over threads. Coroutines allow for multiple tasks to run concurrently without blocking threads. They are useful for handling I/O operations more efficiently than threads. The document provides code examples of using coroutines to simulate long-running calculations running in the background without blocking the main thread. It concludes that coroutines are better than threads for I/O operations but threads are still more efficient overall and coroutines do not guarantee thread safety.
Coroutine
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- 4. What is problem? Token User list { userList: [ 0001, 0002, 0003 ] } User Info * M { Id: 0001, Name: HelloWorld Url: https://xxx.app } Relationship User Info * N CRUD ( Creat, Read, Update, Delete ) ???
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- 11. Case I Define context Simulatecalculate time Log
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- 24. Conclusion • 歷歷史上是先有 Coroutine，⽤用來來模擬OS 多項 task 同時執 ⾏行行 • Thread 效能上還是⽐比 Coroutine 好，但時常會因為 lock 設 計不不良，導致許多問題衍⽣生。 • Coroutine 僅在 I/O 處理理上，效能可贏過 Thread • Coroutine 也是需要 lock，並不不保證 Thread safe
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- 27. Reference • https://www.zhihu.com/question/20511233 • https://juejin.im/entry/588ff7cd2f301e0069fd4fec •https://codelabs.developers.google.com/codelabs/kotlin- coroutines/#0