Imagine a big office (your program), with many assets (shared resources) and many employees (threads). For example, all employees share one common resource - a toilet. They have agreed to use a label on a toilet's door (mutex).
When an employee wants to use the toilet he checks a label on a door (locks a mutex). If it is "engaged" he waits (blocks on a mutex), then when it is "free", he enters the toilet and changes the label to
| from django import forms | |
| from django.core import validators | |
| from django.core.exceptions import ValidationError | |
| class MinLengthValidator(validators.MinLengthValidator): | |
| message = 'Ensure this value has at least %(limit_value)d elements (it has %(show_value)d).' | |
| class MaxLengthValidator(validators.MaxLengthValidator): | |
| message = 'Ensure this value has at most %(limit_value)d elements (it has %(show_value)d).' |
Author: Josef Jezek
sudo apt-get install python-setuptools
In computing, memoization or memoisation
is an optimization technique used primarily
to speed up computer programs by storing
the results of expensive function calls and
returning the cached result when the same
inputs occur again.
— wikipedia
| # mihomo (Clash Meta) 懒人配置 | |
| # 版本 V1.5-240507 | |
| # https://gist.github.com/liuran001/5ca84f7def53c70b554d3f765ff86a33 | |
| # https://obdo.cc/meta | |
| # 作者: 笨蛋ovo (bdovo.cc) | |
| # Telegram: https://t.me/baka_not_baka | |
| # 关注我的 Telegram 频道谢谢喵 https://t.me/s/BDovo_Channel | |
| # 修改自官方示例规则 https://wiki.metacubex.one/example/#meta | |
| # 转载请保留此注释 | |
| # 尽量添加了较为详尽的注释，不理解的地方建议对照 虚空终端 (Clash Meta) Docs 进行理解 |
⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,
In some cases, only these lines will work
for product in IntelliJIdea WebStorm DataGrip PhpStorm CLion PyCharm GoLand RubyMine; do
rm -rf ~/.config/$product*/eval 2> /dev/null
rm -rf ~/.config/JetBrains/$product*/eval 2> /dev/null
doneBut if not, try these
This script is also on greasyfork!
For verifying the integrity (but not authenticity of data, i.e., who authored it or the origin of the file) of a file, it is necessary to run a checksum function on the file which will output a value and compare it to a previously stored checksum value; if both values match, we can be relatively confident that the file hasn't been tampered with or altered.
You might be asked to verify a file's sha1sum or sha2sum–-all this means is calculating and verifying the cryptographic sha1 or sha2 hash value or digest included in the file.
Organic:
In terminal run:
