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concurrent

bash shell 多任务并发库

方法说明

  • concurrent_init
    • 初始化并发,可传入参数控制并发量,默认 5,取值范围 (0,ulimit -u)
  • concurrent_run
    • 执行任务
  • concurrent_wait
    • 等待所有任务完成

使用

#!/bin/bash
task_count=20

function task() { 
  sleep 2 && printf "%2d) sleep 2\n" $1
}

date

# 执行并发任务
. ../concurrent.sh
concurrent_init 5
for ((i=0; i<$task_count; i++)); do
  concurrent_run task $i
done
concurrent_wait

date

示例

demo

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shell 多任务并发库

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