38 lines
896 B
Bash
38 lines
896 B
Bash
#!/bin/bash
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#=========================================
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# Filename : process_pool.sh
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# Author : Colben
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# Create : 2018-12-14 19:04
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#=========================================
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#set -euo pipefail
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export LANG=en_US.UTF-8
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#[ 0 = $UID ] || exit 1
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# 创建有名管道，模拟 go 的有缓存 channal
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rm -rf pool.pipe && mkfifo pool.pipe || exit 1
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exec 1022<> pool.pipe && rm -f pool.pipe
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# 初始向有名管道写入10个字符
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printf "%10s" '' >&1022
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# 功能: 执行一个任务
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# 根据业务需求自己实现
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function ExecTask {
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local ts=$1
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sleep $[ts%10]
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}
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# 测试开始
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for task in $(seq 11 88); do # 这里的多任务用几个整数模拟
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read -n1 -u1022 # 每次执行任务前读出一个字符
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(
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ExecTask $task
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echo -n '.'
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echo >&1022 # 每次执行任务后再写入一个字符
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) & # 后台启动任务
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done
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wait
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echo
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# 测试结束
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