lin Petelin
Petelin
/ update_if_bigger.lua
Last active
June 22, 2018 09:41
this lua script is used to in redis. it will set to the key if the value is bigger than the `updateat:{timestamp}`, if no udpateat founded update as normal
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| local a = redis.call('get',KEYS[1]); | |
| if a and a:find("^updateat:") ~= nil then | |
| -- this key already update by anther thread. so we test | |
| if tonumber(string.sub(a, 10, string.len(a))) <= tonumber(KEYS[2]) then | |
| return redis.call('set',KEYS[1], KEYS[3]); | |
| end | |
| return; | |
| end | |
| return redis.call('set',KEYS[1], KEYS[3]); |
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| 33 # search and kill | |
| 32 function gkill(){ | |
| 31 filter=$1 | |
| 30 exp=[${filter:0:1}]${filter:1} | |
| 29 echo '>ps aux | grep' $exp | |
| 28 echo $( ps aux | grep $exp --color=always | xargs -I % echo '\n' %) | |
| 27 echo "Kill?" | |
| 26 read Keypress | |
| 25 case "$Keypress" in | |
| 24 * ) kill $2 $args $(ps aux | grep $exp --color=always | awk '{print $2}'); |
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| package main | |
| import ( | |
| "fmt" | |
| "os" | |
| "os/exec" | |
| "time" | |
| ) | |
| func main() { |
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| #include <u.h> | |
| #include <libc.h> | |
| /* | |
| * algorithm by | |
| * D. P. Mitchell & J. A. Reeds | |
| */ | |
| #define LEN 607 | |
| #define TAP 273 |
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| #include <stdio.h> | |
| #include <time.h> | |
| #ifndef MERSENNE_TWISTER_H | |
| #define MERSENNE_TWISTER_H | |
| #define __STDC_LIMIT_MACROS | |
| # define uint32_t unsigned int | |
| #ifdef __cplusplus | |
| extern "C" { |
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| # from https://www.zhihu.com/people/tou-gou-bao-da | |
| package main | |
| import ( | |
| "fmt" | |
| "math" | |
| "math/rand" | |
| "reflect" | |
| "runtime" | |
| "sort" |
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| func TestH(t *testing.T) { | |
| say := func() { | |
| fmt.Println("say") | |
| } | |
| rec := patchFunction(&say, func() { fmt.Println("replace") }) | |
| say() | |
| rec() | |
| say() | |
| } |
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| package main | |
| import ( | |
| "fmt" | |
| "sync" | |
| "time" | |
| ) | |
| var l = sync.Mutex{} | |
| var cond = sync.NewCond(&l) |
Petelin
/ new_condition.go
Last active
March 22, 2019 02:35
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| package main | |
| import ( | |
| "fmt" | |
| "sync" | |
| "time" | |
| ) | |
| func main() { | |
| s := []string{"A", "B", "C"} |
Petelin
/ lambda_queue.go
Created
April 9, 2019 10:20
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| // Copyright (c) 2012-2019 Grabtaxi Holdings PTE LTD (GRAB), All Rights Reserved. NOTICE: All information contained herein | |
| // is, and remains the property of GRAB. The intellectual and technical concepts contained herein are confidential, proprietary | |
| // and controlled by GRAB and may be covered by patents, patents in process, and are protected by trade secret or copyright law. | |
| // | |
| // You are strictly forbidden to copy, download, store (in any medium), transmit, disseminate, adapt or change this material | |
| // in any way unless prior written permission is obtained from GRAB. Access to the source code contained herein is hereby | |
| // forbidden to anyone except current GRAB employees or contractors with binding Confidentiality and Non-disclosure agreements | |
| // explicitly covering such access. | |
| // | |
| // The copyright notice above does not evidence any actual or intended publication or disclosure of this source code, |