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我瞭解龍捲風corountine的機制,但在這裏協同程序鎖是我無法找出問題,請給我一個手如何實現在龍捲風
考慮這個日常業務:這裏有5個數據庫操作
#operation 1
#use asynchronous method ,doesn't matter
#switch to other coroutine
#operation 2
#use asynchronous method ,doesn't matter
#switch to other coroutine
#operation 3
#use asynchronous method , but i'll use the result do
#some process then update in operation 4
#switch to other coroutine
#operation 4
#use asynchronous method ,doesn't matter
#switch to other coroutine
#operation 5
#use asynchronous method ,doesn't matter
#switch to other coroutine
,你可以看到,我不希望任何其他相關協程也更新到每個人的操作3和操作4之間的同一個表或相同的記錄,它會讓髒讀和write.in其他字
#coroutine 1 operation 3
#coroutine 2 operation 3
#coroutine 1 operation 4
#coroutine 2 operation 4
將不被接受,正確的順序應該是
#coroutine 1 operation 3
#coroutine 1 operation 4
#coroutine 2 operation 3
#coroutine 2 operation 4
我可以在操作使用3塊的方法,但會阻礙整個服務器,我希望主循環將不執行特定的協同程序,直到我告訴他們釋放。