大约有 482 项符合查询结果（耗时：0.0180秒） [XML]
Generating v5 UUID. What is name and namespace?
...ith the 20-byte hash from SHA1:
SHA1 Digest: 74738ff5 5367 e958 9aee 98fffdcd1876 94028007
UUID (v5): 74738ff5-5367-5958-9aee-98fffdcd1876
^_low nibble is set to 5, to indicate type 5
^_first two bits set to 1 and 0, respectively
...
What is the Difference Between read() and recv() , and Between send() and write()?
...ntly that when I used write() on a socket in Windows, it almost works (the FD passed to write() isn't the same as the one passed to send(); I used _open_osfhandle() to get the FD to pass to write()). However, it didn't work when I tried to send binary data that included character 10. write() somew...
How to read the content of a file to a string in C?
...actually share the physical memory.
POSIX code would look like this:
int fd = open("filename", O_RDONLY);
int len = lseek(fd, 0, SEEK_END);
void *data = mmap(0, len, PROT_READ, MAP_PRIVATE, fd, 0);
Windows on the other hand is little more tricky, and unfortunately I don't have a compiler in fron...
Difference between 3NF and BCNF in simple terms (must be able to explain to an 8-year old)
...quivalent to Codd's:
A relation, R, is in 3NF iff for every nontrivial FD (X->A) satisfied
by R at least ONE of the following conditions is true:
(a) X is a superkey for R, or
(b) A is a key attribute for R
BCNF requires (a) but doesn't treat (b) as a special case of its own. In...
How to detect if a script is being sourced
...ocess $$ is $v ($0, $BASH_SOURCE)" ')
process 29301 is sourced (bash, /dev/fd/63)
bash <(echo $'#!/bin/bash
[ "$0" = "$BASH_SOURCE" ] && v=own || v=sourced;
echo "process $$ is $v ($0, $BASH_SOURCE)" ')
process 16229 is own (/dev/fd/63, /dev/fd/63)
I use source in...
Get first and last date of current month with JavaScript or jQuery [duplicate]
...
I fixed it with Datejs
This is alerting the first day:
var fd = Date.today().clearTime().moveToFirstDayOfMonth();
var firstday = fd.toString("MM/dd/yyyy");
alert(firstday);
This is for the last day:
var ld = Date.today().clearTime().moveToLastDayOfMonth();
var lastday = ld.toStrin...
通过API获取IP信息、IP归属地 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...service/getIpInfo.php?ip=8.8.8.8
{"code":0,"data":{"country":"\u7f8e\u56fd","country_id":"US","area":"","area_id":"","region":"","region_id":"","city":"","city_id":"","county":"","county_id":"","isp":"","isp_id":"","ip":"8.8.8.8"}}
注意：返回的json中有嵌套，解析时先解析出data...
[解决]CTRL: PTY read or GRE write failed - 更多技术 - 清泛网 - 专注C/C++及内核技术
...查看系统日志[cat var log messages |grep pptpd]后发现）GRE: read(fd=6,buffer=80504c0...pptp vpn服务器连接失败出现以下日志内容：
（查看系统日志[ cat /var/log/messages |grep pptpd ]后发现）
GRE: read(fd=6,buffer=80504c0,len=8196) from PTY failed: status = -1 er...
Google breakpad stackwalker无法加载符号 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...head -n1 tmp/c++11.sym
#todo:
mkdir -p ./symbols/c++11/6EDC6ACDB282125843FD59DA9C81BD830
mv tmp/c++11.sym ./symbols/c++11/6EDC6ACDB282125843FD59DA9C81BD830
rm -rf tmp
路径有要求，GUID来自 .so 文件的头部。
为了方便，写个 python 脚本 gen_symbols.py 自动生成：
#...
Win10正式版官方原版ISO镜像下载大全（64位&32位） - 软件下载 - 清泛网 - ...
...k://|file|cn_windows_10_multiple_editions_x64_dvd_6848463.iso|4303300608|94FD861E82458005A9CA8E617379856A|/
【32位简体中文家庭/专业版】
文件名：cn_windows_10_multiple_editions_x86_dvd_6846431.iso
体积：3.01GB
SHA1：21B824F402927E76C65160B62EB8A4EBBA...