device resource management

Resource Management in View Controllers 视图控制器的资源管理 View controllers are an essential part of managing your app’s resources. View controllers allow you to break your app up into multiple parts and instantiate only the parts that are needed. But more t

1.除了内存资源以外,Other common resources include file descriptors, mutex locks, fonts and brushes in graphical user interfaces (GUIs), database connections, and network sockets. Regardless of the resource, it's important that it be released when you're fini

Ordinarily classes that manage resources that do not reside in the class must define the copy-control members. Once a class needs a destructor, it almost surely needs a copy constructor and copy-assignment operator as well. In order to define these m

?Chapter 11. Using the YARN CLI to View Logs for Running Applications This chapter describes how to use the YARN CLI (Command Line Interface) to view log files for running applications. You can access container log files using the YARN ResourceManage

Linux Cross Reference Free Electrons Embedded Linux Experts • Source Navigation  • Diff Markup  • Identifier Search  • Freetext Search  • Version:  2.0.40 2.2.26 2.4.37 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 Lin

转自:http://www.wowotech.net/linux_kenrel/pin-controller-driver.html 一.前言 对于一个嵌入式软件工程师,我们的软件模块经常和硬件打交道,pin control subsystem也不例外,被它驱动的硬件叫做pin controller(一般ARM soc的datasheet会把pin controller的内容放入GPIO controller的章节中),主要功能包括: (1)pin multiplexing.基于ARM core

在Linux Kernel中某些特定含义的函数命令有自己的规律,比如这里将简单的介绍一下函数名前双下划线__和devm_xxx函数的意思. 函数名称前的双下划线__ 标记需要加锁: 在内核中,有很多函数,有的是需要调用者自己加锁保护的,有些是不需要加锁保护的.对于这些场景,linux kernel采取了统一的策略:基本函数名字是一样的,只不过需要调用者自己加锁保护的那个函数需要增加__的前缀,例如内核有有下面两个函数:setup_irq()和__setup_irq(). 两个函数在kernel/

This article talks about how the device number management works in Linux block subsystem. However, the idea applies to character device number management too. Note: I am referring to linux-3.17 source code. The purpose of introducing device number ma

An apparatus for performing network function virtualization (NFV), comprising: a memory, a processor coupled to the memory, wherein the memory includes instructions that when executed by the processor cause the apparatus to perform the following: rec