vscode 编译调试 java 单文件代码

19 天前 | 代码 | 32 views

安装

Language Support for Java(TM) by Red Hat
Java Debug Extension for Visual Studio Code

设置

需要先打开一个目录，以下配置文件生成于该目录的 .vscode 目录下
编译设置

C-S-p Tasks: Configure Task Runner

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "taskName": "java build",
            "type": "shell",
            "command": "javac",
            "args": ["-d","${workspaceRoot}","${file}"],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "problemMatcher": {
                "owner": "java",
                "fileLocation": ["absolute"],
                "pattern": {
                    "regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error|fatal error):\\s+(.*)$",
                    "file": 1,
                    "line": 2,
                    "column": 3,
                    "severity": 4,
                    "message": 5
                }
            }
        }
    ]
}

调试设置

Debug -> Start Debugging

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "java",
            "name": "Debug (Launch)",
            "request": "launch",
            "sourcePaths": [
                "$(workspaceRoot)"
            ],
            "classPaths": [
                "",            
                "$(workspaceRoot)"
            ],
            "mainClass": "${fileBasenameNoExtension}",
            "args": ""
        },
        {
            "type": "java",
            "name": "Debug (Attach)",
            "request": "attach",
            "hostName": "localhost",
            "port": 0
        }
    ]
}

快捷键

编译 C-S-b
调试 F5

vscode 编译调试 C++ 单文件代码

20 天前 | 代码 | 28 views

安装

安装 vscode
安装插件 c/c++ c/c++ snippets

设置

需要先打开一个目录，以下配置文件生成于该目录的 .vscode 目录下
IntelliSense 设置

C-S-p c/cpp: Edit Configurations..

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "D:/mingw540-x64/x86_64-w64-mingw32/include/c++",
                "${workspaceRoot}"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE"
            ],
            "intelliSenseMode": "msvc-x64",
            "browse": {
                "path": [
                    "D:/mingw540-x64/x86_64-w64-mingw32/include/c++",
                    "${workspaceRoot}"
                ],
                "limitSymbolsToIncludedHeaders": true,
                "databaseFilename": ""
            }
        }
    ],
    "version": 3
}

编译设置

C-S-p Tasks: Configure Task Runner

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "taskName": "g++ build",
            "type": "shell",
            "command": "g++.exe",
            "args": ["-g","${file}","-o","${file}.exe", "-std=c++1y"], 
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "problemMatcher": {
                "owner": "cpp",
                "fileLocation": ["absolute"],
                "pattern": {
                    "regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error|fatal error):\\s+(.*)$",
                    "file": 1,
                    "line": 2,
                    "column": 3,
                    "severity": 4,
                    "message": 5
                }
            }
        },
        {
            "taskName": "clang++ build",
            "type": "shell",
            "command": "clang++.exe",
            "args": ["-target", "x86_64-pc-windows-gnu", "-g","${file}","-o","${file}.exe", "-std=c++1y"], 
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "problemMatcher": {
                "owner": "cpp",
                "fileLocation": ["absolute"],
                "pattern": {
                    "regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error|fatal error):\\s+(.*)$",
                    "file": 1,
                    "line": 2,
                    "column": 3,
                    "severity": 4,
                    "message": 5
                }
            }
        }
    ]
}

调试设置

Debug -> Start Debugging

{
        "version": "0.2.0",
        "configurations": [
            {
                "name": "(gdb) Launch",
                "type": "cppdbg",
                "request": "launch",
                "program": "${file}.exe",
                "args": [],
                "stopAtEntry": false,
                "cwd": "${workspaceRoot}",
                "environment": [],
                "externalConsole": true,
                "MIMode": "gdb",
                "miDebuggerPath": "gdb.exe",
                "setupCommands": [
                    {
                        "description": "Enable pretty-printing for gdb",
                        "text": "-enable-pretty-printing",
                        "ignoreFailures": true
                    }
                ]
            }
        ]
    }

快捷键

编译 C-S-b
调试 F5

ubuntu16.04 修改 pthread 库的 PTHREAD_KEYS_MAX 宏定义

24 天前 | 代码 | 21 views

编译说明

pthread 是 glibc 的子库，需要编译整个 glibc。
需要安装编译套件 gcc, make 等工具。

编译 glibc

查看 glibc 当前版本

$ /lib/x86_64-linux-gnu/libc.so.6
GNU C Library (Ubuntu GLIBC 2.23-0ubuntu9) stable release version 2.23, by Roland McGrath et al.
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 5.4.0 20160609.
Available extensions:
        crypt add-on version 2.1 by Michael Glad and others
        GNU Libidn by Simon Josefsson
        Native POSIX Threads Library by Ulrich Drepper et al
        BIND-8.2.3-T5B
libc ABIs: UNIQUE IFUNC
For bug reporting instructions, please see:
<https://bugs.launchpad.net/ubuntu/+source/glibc/+bugs>.

下载 glibc-2.23

apt install axel
axel -n 10 http://ftp.gnu.org/gnu/glibc/glibc-2.23.tar.bz2
tar xjf glibc-2.23.tar.bz2

修改 PTHREAD_KEYS_MAX 宏大小
- 不能改太大，改成 10240 创建线程时会崩溃
- 仅修改相关 PC 体系下的头文件，如下是修改完的

$ cd /home/share/glibc-2.23
$ ag "define PTHREAD_KEYS_MAX"
glibc-2.23/sysdeps/unix/sysv/linux/aarch64/bits/local_lim.h
65:#define PTHREAD_KEYS_MAX     2048

glibc-2.23/sysdeps/unix/sysv/linux/bits/local_lim.h
64:#define PTHREAD_KEYS_MAX     2048

glibc-2.23/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h
64:#define PTHREAD_KEYS_MAX     1024

glibc-2.23/sysdeps/unix/sysv/linux/powerpc/bits/local_lim.h
64:#define PTHREAD_KEYS_MAX     1024

glibc-2.23/sysdeps/unix/sysv/linux/mips/bits/local_lim.h
64:#define PTHREAD_KEYS_MAX     1024

glibc-2.23/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h
64:#define PTHREAD_KEYS_MAX     1024

glibc-2.23/sysdeps/unix/sysv/linux/tile/bits/local_lim.h
64:#define PTHREAD_KEYS_MAX     1024

glibc-2.23/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h
64:#define PTHREAD_KEYS_MAX     1024

glibc-2.23/sysdeps/nacl/bits/local_lim.h
29:#define PTHREAD_KEYS_MAX        2048

编译 glibc-2.23

apt install gawk
mkdir build
cd build
../configure CC=gcc --disable-sanity-checks

安装前的准备

$ locate pthread.so
/lib/x86_64-linux-gnu/libpthread.so.0
/usr/lib/x86_64-linux-gnu/libpthread.so
/usr/lib/x86_64-linux-gnu/samba/vfs/aio_pthread.so

查看运行库

$ cd /lib/x86_64-linux-gnu/
$ l *pthread*
-rwxr-xr-x 1 root root 136K Jun 17 04:57 libpthread-2.23.so
lrwxrwxrwx 1 root root   18 Jun 17 04:57 libpthread.so.0 -> libpthread-2.23.so

查看链接库

$ cd /usr/lib/x86_64-linux-gnu
$ l *pthread*
-rw-r--r-- 1 root root 2.4M Jun 17 04:52 libpthread.a
-rw-r--r-- 1 root root 7.6K Jun 17 04:52 libpthread_nonshared.a
-rw-r--r-- 1 root root  252 Jun 17 04:52 libpthread.so

查看头文件位置

$ locate local_lim.h
/usr/include/x86_64-linux-gnu/bits/local_lim.h

替换链接库

备份链接库

cd /usr/lib/x86_64-linux-gnu
mv libpthread.so libpthread.so.bak
mv libpthread.a libpthread.a.bak
mv libpthread_nonshared.a libpthread_nonshared.a.bak

替换链接库 编译完成后记得还原

cd /usr/lib/x86_64-linux-gnu
cp /home/share/glibc-2.23/glibc-2.23/build/nptl/libpthread.so .
cp /home/share/glibc-2.23/glibc-2.23/build/nptl/libpthread.a .
cp /home/share/glibc-2.23/glibc-2.23/build/nptl/libpthread_nonshared.a .

替换运行库

备份运行库
- 部分 shell 命令依赖 libpthread.so.0，如 cp，mv。
```
cd /lib/x86_64-linux-gnu/
cp libpthread.so.0 libpthread.so.0.bak
```
- ln 仍然可用，可用于紧急情况下恢复。
```
ln -s -f libpthread-2.23.so libpthread.so.0 
```

替换运行库

export LD_LIBRARY_PATH=./
cd /home/share/glibc-2.23/glibc-2.23/build/nptl
cp *.so* /var/data/testprogram

放到系统目录下 危险，尽量不要使用这种方法

cd /lib/x86_64-linux-gnu/
cp /home/share/glibc-2.23/glibc-2.23/build/nptl/libpthread.so libpthread.spider.so
ln -s -f libpthread.spider.so libpthread.so.0

修改头文件 编译完成后记得还原

vim /usr/include/x86_64-linux-gnu/bits/local_lim.h
#define PTHREAD_KEYS_MAX 10240

flex 布局

27 天前 | 代码 | 36 views

浏览器版本支持

chrome 21, opera 12.1, firefox 22, safari 6.1, ie 10

指定 flex 布局

块元素 display: flex;
行内元素 display: inline-flex;
webkit 内核 display: -webkit-flex display: -webkit-inline-flex
影响设置 flex 而已后， float , clear , vertcal-align 都失效

窗口属性

flex-direction row | row-reverse | column | column-reverse
flex-wrap nowrap | wrap | wrap-reverse
flex-flow <flex-direction> || <flex-wrap>
justify-content flex-start | flex-end | center | space-between | space-around
align-items flex-start | flex-end | center | baseline | stretch
align-content flex-start | flex-end | center | space-between | space-around | stretch

元素属性

order <integer>
flex-grow <number> /*default 0*/
flex-shrink <number> /*default 0*/
flex-basis <number | auto /*default auto*/
flex none | [ <flex-grow> <flex-shrink>? || <flex-basis> ]
align-self auto | flex-start | flex-end | center | baseline | stretch

参考链接

angular2 学习笔记（2）- 添加 material 组件

2017/09/17 | 代码 | 46 views

添加组件

命令行

npm install --save @angular/material material-design-icons @angular/animations @angular/flex-layout hammerjs

添加配置

app.module.ts

imports: [    
  ...
  BrowserAnimationsModule,
  MdToolbarModule, MdButtonModule, MdMenuModule, MdIconModule,
  FlexLayoutModule,
],

style.css

@import '~@angular/material/core/theming/prebuilt/deeppurple-amber.css';

/* fallback */
@font-face {
  font-family: 'Material Icons';
  font-style: normal;
  font-weight: 400;
  src: url(../node_modules/material-design-icons/iconfont/MaterialIcons-Regular.woff2) format('woff2');
}

.material-icons {
  font-family: 'Material Icons';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
}

测试页面

html demo

<md-toolbar color="primary">
  <button md-icon-button [mdMenuTriggerFor]="menu1">
    <md-icon>more_vert</md-icon>
  </button>
  <md-menu #menu1="mdMenu">
    <button md-menu-item>
      <md-icon>fingerprint</md-icon>
      <span>Login</span>
    </button>
    <button md-menu-item disabled>
      <md-icon>annoucement</md-icon>
      <span>Issues</span>
    </button>
    <button md-menu-item>
      <md-icon>notifications_off</md-icon>
      <span>No Alerts</span>
    </button>
  </md-menu>
  <span>fj's blog</span>
</md-toolbar>

安装

设置

快捷键

安装

设置

快捷键

编译说明

编译 glibc

安装前的准备

替换链接库

替换运行库

浏览器版本支持

指定 flex 布局

窗口属性

元素属性

参考链接

添加组件

添加配置

测试页面

参考文档