meaning of env

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LEVELDB source analysis of nine: env

Given the portability and flexibility, LEVELDB abstracts the system-related processing (file/process/time) into EVN, and the user can implement the appropriate interface themselves, passing in as part of option, using its own implementation by

JNI learning 4: how to compile the JNI Method

I. Overview: This article will briefly introduce how to compile some simple JNI methods. We all know that the JNI method can help us call functions written in C/C ++. If a job has been implemented in C/C ++, we don't need to make great effort to

Technology JNI learning 4: how to compile the JNI Method

Reprinted: http://blog.chinaunix.net/u1/38994/showart_1099528.html     I. Overview: This article will briefly introduce how to compile some simple JNI methods. We all know that the JNI method can help us call functions written in C/C ++. If a job

The difference between the set, Env, declare, and export display shell variables in Linux

The difference between the set, Env, declare, and export display shell variables in LinuxThe shell variable consists of two variables1. Shell Local VariablesLocal variables are defined in a script or command, only valid in the current shell instance,

Set/env/export/declare and profile

Finally understand the meaning of set env export declare and profile. Take bash as an example. When linux is started, it will read the/etc/profile file. In fact, this file is a shell script file, so you can define some environment variables in this

JNI Official Document Translation 4-access to properties and methods

This article describes how to access the properties and methods of any object, of course, access at the native level, and access to the method is generally accessed as a callback for the Java layer. Let's start with the access to the property and

JNI/NDK Development Guide (vi)--c/c++ Access to Java instance methods and static methods

Reprint Please specify Source: http://blog.csdn.net/xyang81/article/details/42582213Learning from the previous 5 chapters, we learned how to access the basic data types, strings, and arrays in the JVM through the JNI function. Next, let's learn how

Java Native Interface JNI call Java method

The JNI was introduced in the previous article. and Java invoke JNI. This article is about JNI calling Java methods.By using the appropriate JNI functions, you can create Java objects, get, set static (static), and instance (instance) domains, and

One-click installation of the LAMP environment using Shell scripts

LAMP refers to the web servers built in Linux (operating system), Apache (HTTP server), MySQL (database software), and PHP. This website architecture is currently a popular and common Web architecture. It has advantages such as LAMP cross-platform

How to write an interpreter

  Source: http://blog.sina.com.cn/s/blog_5d90e82f01018ge9.html     The interpreter is in-depth. Although I tried to start from the basic principle and try to make this article independent of other knowledge, this tutorial is not an entry to

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