kawasin73 kawasin73
kawasin73
/ invalid_text_to_sqlite.rs
Last active
August 7, 2023 15:46
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| $ hexdump ./test.db | |
| 0000000 5153 694c 6574 6620 726f 616d 2074 0033 | |
| 0000010 0010 0101 4000 2020 0000 0200 0000 0200 | |
| 0000020 0000 0000 0000 0000 0000 0100 0000 0400 | |
| 0000030 0000 0000 0000 0000 0000 0100 0000 0000 | |
| 0000040 0000 0000 0000 0000 0000 0000 0000 0000 | |
| 0000050 0000 0000 0000 0000 0000 0000 0000 0200 | |
| 0000060 2e00 1d5f 000d 0000 0f01 00cb cb0f 0000 | |
| 0000070 0000 0000 0000 0000 0000 0000 0000 0000 | |
| * |
kawasin73
/ cmp_ascii_lookup.rs
Created
August 7, 2023 15:16
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| #![feature(test)] | |
| const CHAR_DIGIT: u8 = 0x03; | |
| #[rustfmt::skip] | |
| static CHAR_LOOKUP_TABLE: [u8; 256] = [ | |
| 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, b' ', b' ', 0xFF, b' ', b' ', 0xFF, 0xFF, 0xFF, // 0x00 - 0x0F | |
| 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, // 0x10 - 0x1F | |
| b' ', b'!', 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, b'(', b')', b'*', 0xFF, b',', 0xFF, b'.', 0xFF, // 0x20 - 0x2F | |
| 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0xFF, b';', b'<', b'=', b'>', 0xFF, // 0x30 - 0x3F |
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| package main | |
| import ( | |
| "context" | |
| "fmt" | |
| "log" | |
| "net/http" | |
| "os" | |
| "os/signal" | |
| "sync" |
kawasin73
/ rw trylock
Last active
November 29, 2019 01:23
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| property | |
| w int | |
| r int | |
| mu sync.Mutex | |
| rwmu sync.RWMutex | |
| rlock | |
| mu.lock | |
| r++ |
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| package main | |
| import ( | |
| "compress/gzip" | |
| "crypto/sha1" | |
| "encoding/base64" | |
| "hash" | |
| "hash/crc32" | |
| "io" | |
| "log" |
kawasin73
/ converter-bench.py
Last active
September 21, 2019 10:55
video metadata parse benchmark of cv2, VideoConverter, Imageio
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| """ | |
| $ pipenv install git+https://github.com/senko/python-video-converter.git#egg=VideoConverter | |
| """ | |
| import converter | |
| def get_meta(path): | |
| c = converter.Converter() | |
| return c.probe(path) |
kawasin73
/ uuid_field.py
Last active
May 10, 2023 16:13
Django BinaryUUIDFields inspired by https://github.com/foresmac/django-binaryuuidfield
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| """ | |
| This file is based on https://github.com/foresmac/django-binaryuuidfield/tree/initial-setup | |
| """ | |
| import uuid | |
| from django import forms | |
| from django.core import exceptions | |
| from django.db import models | |
| from django.utils.translation import ugettext_lazy as _ |
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| package main | |
| import ( | |
| "log" | |
| "net" | |
| "sync" | |
| "time" | |
| ) | |
| func main() { |
kawasin73
/ file_lock_with_timeout.go
Last active
May 21, 2022 11:38
FileLock with timeout using Fcntl in Golang
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| package main | |
| import ( | |
| "errors" | |
| "io" | |
| "log" | |
| "os" | |
| "os/signal" | |
| "syscall" | |
| "time" |
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| #include <Servo.h> | |
| Servo myservo; //initiareze a servo for the connected servo: servoに名付ける | |
| /*HS-5070MH Servo | |
| Voltage=const:6.0-7.4V | |
| Torque:3.1-3.8kg・cm*/ | |
| int Angle = 0; //the set point of the angle to zero: Servoへのcommand値 | |
| int myangle[3]={10,20,30}; //variable to control |
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