There are several modules both used in video recorder and video player , such as : hard disk driver module , file system module and osd module 硬盤節(jié)目錄制與硬盤節(jié)目回放功能中存在功能相同的模塊,例如:硬盤驅(qū)動(dòng)模塊、文件系統(tǒng)模塊、 osd菜單顯示模塊等。
The linux kernel possesses the rich software resources , mature functions , steady working behavior . this paper clarifies the modules that make up the kernel , especially analyses the memory management module and the process management module , introduces the virtue file system module , the inter process communication module and the network module . so we have the deep theory foundation to reconstruct the kernel Linux的內(nèi)核是一個(gè)軟件資源十分豐富,功能完善,工作穩(wěn)定的系統(tǒng)內(nèi)核,本文對(duì)其組成模塊進(jìn)行了深入的分析,著重剖析了內(nèi)核的內(nèi)存管理模塊和進(jìn)程管理模塊,介紹了虛擬文件系統(tǒng)模塊、進(jìn)程通信模塊、網(wǎng)絡(luò)接口模塊的工作原理,為對(duì)linux內(nèi)核進(jìn)行改造奠定了堅(jiān)實(shí)的理論基礎(chǔ)。
The implementation of deltafile 3 . 0 can be divided into two modules ? real - time file system module and manage module for both facilities and drives . the real - time file system contains four parts ? system call api layer , file node manage layer , virtual file system layer , concrete file system layer , which perform the abstraction of the facility 實(shí)時(shí)文件系統(tǒng)模塊包含系統(tǒng)調(diào)用api層、文件節(jié)點(diǎn)管理層、虛擬文件系統(tǒng)層、具體邏輯文件系統(tǒng)層四部分,主要完成與設(shè)備無關(guān)的數(shù)據(jù)存取接口抽象和各種文件系統(tǒng)標(biāo)準(zhǔn)的實(shí)現(xiàn);設(shè)備與驅(qū)動(dòng)管理模塊包含邏輯設(shè)備管理層、物理設(shè)備管理層、設(shè)備緩沖區(qū)高速緩存層、設(shè)備驅(qū)動(dòng)管理層四部分,主要完成外部存儲(chǔ)設(shè)備管理及其驅(qū)動(dòng)接口抽象功能。