Forgetting releaseLock() permanently breaks the stream. The locked property tells you that a stream is locked, but not why, by whom, or whether the lock is even still usable. Piping internally acquires locks, making streams unusable during pipe operations in ways that aren't obvious.
경찰 ‘수면제 대리처방 의혹’ MC몽 수사 착수
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Жители Санкт-Петербурга устроили «крысогон»17:52
Immigration boosts innovation and wages in the US. The positive dynamic impact of immigration on innovation and wages dominates the short-run negative impact of increased labor supply. Increased immigration to the US since 1965 is estimated to have increased innovation and wages by 5%.