第 1 章 嵌入式Linux C 語(yǔ)言開(kāi)發(fā)工具··········································································（1）
1.1 嵌入式Linux C 語(yǔ)言開(kāi)發(fā)概述·················································································（1）
1.2 嵌入式Linux C 開(kāi)發(fā)環(huán)境·······················································································（2）
1.3 嵌入式文本編輯器··························································································（2）
1.3.1 基本模式································································································. （3）
1.3.2 基本操作··································································································（3）
1.3.3 實(shí)訓(xùn)操作··································································································（5）
1.4 嵌入式編譯器······································································································（6）
1.4.1 初識(shí)GCC 編譯器························································································（6）
1.4.2 gcc 命令常用選項(xiàng)和工作流程·········································································（6）
1.4.3 庫(kù)的使用·······························································································.（10）
1.5 嵌入式調(diào)試器···································································································.（12）
1.6 工程管理器······································································································.（15）
1.6.1 Makefile·································································································.（16）
1.6.2 Makefile 特性介紹····················································································.（18）
1.7 Eclipse 程序開(kāi)發(fā)·······························································································.（27）
1.7.1 Eclipse 環(huán)境安裝······················································································.（27）
1.7.2 Eclipse C 程序開(kāi)發(fā)···················································································.（29）
1.8 軟件版本管理···································································································.（34）
1.8.1 Git 版本管理···························································································.（34）
1.8.2 Ubuntu 軟件包管理···················································································.（45）
第 2 章 數(shù)據(jù)類(lèi)型··································································································.（48）
2.1 變量與常量······································································································.（48）
2.2 變量···············································································································.（48）
2.2.1 什么是變量····························································································.（48）
2.2.2 變量名和變量值······················································································.（49）
2.2.3 局部變量和全局變量················································································.（51）
2.3 常量···············································································································.（53）
2.4 基本內(nèi)置類(lèi)型···································································································.（54）
2.4.1 數(shù)據(jù)類(lèi)型及其大小···················································································.（55）
2.4.2 陷阱——有符號(hào)與無(wú)符號(hào)·············································································.（55）
2.5 聲明與定義······································································································.（56）
2.5.1 定義·····································································································.（56）
2.5.2 聲明·····································································································.（57）
2.6 static 與extern····················································································.（57）
2.6.1 static ························································································.（57）
2.6.2 extern ······································································.·······.·······.（59）
2.7 const ··································································································.（60）
2.8 auto·································································································.（61）
2.9 register·····························································································.（62）
2.10 volatile ···························································································.（63）
2.11 typedef 詳解····································································································.（64）
2.11.1 typedef 與結(jié)構(gòu)的問(wèn)題··············································································.（64）
2.11.2 typedef 與#define 的問(wèn)題··········································································.（66）
2.11.3 typedef 與#define 的另一例·······································································.（67）
2.11.4 typedef 與復(fù)雜的變量聲明········································································.（67）
2.12 枚舉（enum）·································································································.（68）
2.12.1 枚舉類(lèi)型的使用方法···············································································.（68）
2.12.2 枚舉與#define 宏的區(qū)別··········································································.（69）
2.13 聯(lián)合體··········································································································.（69）
2.13.1 聯(lián)合體的定義························································································.（69）
2.13.2 從兩道經(jīng)典試題談聯(lián)合體（union）的使用···················································.（70）
第 3 章 運(yùn)算符和表達(dá)式·····················································································（73）
3.1 運(yùn)算符簡(jiǎn)介································································································.（73）
3.1.1 運(yùn)算符優(yōu)先級(jí)·························································································.（73）
3.1.2 一些容易出錯(cuò)的優(yōu)先級(jí)問(wèn)題·······································································.（75）
3.1.3 邏輯運(yùn)算符····························································································.（76）
3.2 條件運(yùn)算符和條件表達(dá)式····················································································.（76）
3.3 ++、--操作符···································································································.（77）
3.4 位運(yùn)算············································································································.（78）
3.4.1 按位與運(yùn)算及應(yīng)用···················································································.（78）
3.4.2 按位或運(yùn)算及應(yīng)用···················································································.（79）
3.4.3 按位異或運(yùn)算及應(yīng)用················································································.（79）
3.4.4 左移和右移····························································································.（79）
3.5 C 語(yǔ)言性能優(yōu)化：使用位操作········································································.（79）
第 4 章 語(yǔ)句···································································································.（81）
4.1 空語(yǔ)句·······································································································.（81）
4.2 基礎(chǔ)語(yǔ)句···································································································.（82）
4.2.1 表達(dá)式語(yǔ)句····························································································. （82）
4.2.2 函數(shù)調(diào)用語(yǔ)句·························································································.（82）
4.3 if 語(yǔ)句······································································································.（82）
4.3.1 布爾變量與零值的比較·············································································.（83）
4.3.2 整型變量與零值比較················································································.（83）
4.3.3 浮點(diǎn)變量與零值的比較·············································································.（83）
4.3.4 指針變量與零值的比較·············································································.（84）
4.3.5 對(duì)if 語(yǔ)句的補(bǔ)充說(shuō)明················································································.（84）
4.4 跳轉(zhuǎn)語(yǔ)句：goto ································································································.（85）
4.5 循環(huán)語(yǔ)句·········································································································.（85）
4.5.1 do-while 語(yǔ)句··························································································.（86）
4.5.2 for 語(yǔ)句·································································································.（86）
4.5.3 循環(huán)語(yǔ)句的效率······················································································.（88）
4.6 break 和continue ·······················································································.（89）
4.6.1 break 語(yǔ)句······························································································.（89）
4.6.2 continue 語(yǔ)句··························································································.（90）
4.7 switch 語(yǔ)句·································································································.（91）
第 5 章 數(shù)組與指針···························································································.（92）
5.1 數(shù)組認(rèn)知·····································································································.（92）
5.2 使用數(shù)組的常見(jiàn)問(wèn)題······················································································.（93）
5.2.1 數(shù)組的下標(biāo)總是從0 開(kāi)始嗎··························································. ············.（93）
5.2.2 可以使用數(shù)組后面第一個(gè)元素的地址嗎···············································. ········.（94）
5.2.3 為什么要小心對(duì)待位于數(shù)組后面的那些元素的地址呢··········································.（95）
5.2.4 當(dāng)數(shù)組作為參數(shù)傳遞給函數(shù)時(shí)，可以通過(guò)sizeof 得到數(shù)組的大小嗎························.（95）
5.2.5 指針或帶下標(biāo)的數(shù)組名都可以訪問(wèn)元素，哪一種更好呢···································.····（96）
5.2.6 可以把另外一個(gè)地址賦給一個(gè)數(shù)組名嗎·····························································（98）
5.2.7 array_name 和＆array_name 有什么不同·························································.（99）
5.2.8 為什么用const 說(shuō)明的常量不能用來(lái)定義一個(gè)數(shù)組的初始大小····························（100）
5.2.9 字符串和數(shù)組有什么不同··········································································（100）
5.3 指針···············································································································（102）
5.3.1 指針是變量····························································································（103）
5.3.2 指針的類(lèi)型和指針?biāo)�指向的�?lèi)型·································································（103）
5.3.3 指針的值·······························································································（104）
5.3.4 指針本身所占據(jù)的內(nèi)存·············································································（105）
5.4 指針的運(yùn)算······································································································（105）
5.4.1 指針的算術(shù)運(yùn)算······················································································（105）
5.4.2 指針的關(guān)系運(yùn)算······················································································（106）
5.4.3 間接引用·······························································································（106）
5.4.4 最多可以使用幾層指針·············································································（106）
5.5 常量指針和指針常量··························································································（108）
5.5.1 常量指針與指針常量的實(shí)例·······································································（108）
5.5.2 常量指針的應(yīng)用······················································································（109）
5.6 空指針及其使用································································································（110）
5.6.1 NULL 總是被定義為0 嗎···········································································（110）
5.6.2 NULL 總是等于0 嗎·················································································（110）
5.6.3 空指針的使用·························································································（111）
5.7 void 指針：萬(wàn)能指針··························································································（113）
5.8 指針數(shù)組與數(shù)組指針··························································································（114）
5.9 字符串函數(shù)詳解································································································（114）
5.10 函數(shù)指針與指針函數(shù)························································································（119）
5.11 復(fù)雜指針聲明：“int * (* (*fp1) (int) ) [10];” ···························································（120）
5.11.1 基礎(chǔ)····································································································（120）
5.11.2 const 修飾符··························································································（121）
5.11.3 typedef 的妙用·······················································································（122）
5.11.4 函數(shù)指針······························································································（123）
5.11.5 右左法則······························································································（123）
第 6 章 內(nèi)存管理································································································（125）
6.1 數(shù)據(jù)放在哪里···································································································（125）
6.1.1 未初始化的全局變量（.bss 段） ··································································（125）
6.1.2 初始化過(guò)的全局變量（.data 段） ·································································（126）
6.1.3 常量數(shù)據(jù)（.rodata 段） ·············································································（126）
6.1.4 代碼（.text 段） ······················································································（127）
6.1.5 棧（stack） ····························································································（127）
6.1.6 堆（heap）·····························································································（127）
6.2 內(nèi)存分配方式···································································································（128）
6.3 野指針············································································································（129）
6.4 常見(jiàn)的內(nèi)存錯(cuò)誤及對(duì)策·······················································································（129）
6.5 段錯(cuò)誤及其調(diào)試方法··························································································（130）
6.5.1 方法一：利用gdb 逐步查找段錯(cuò)誤······························································（131）
6.5.2 方法二：分析core 文件·············································································（131）
6.5.3 方法三：在發(fā)生段錯(cuò)誤時(shí)啟動(dòng)調(diào)試······························································（132）
6.5.4 方法四：利用backtrace 和objdump 進(jìn)行分析·················································（134）
6.6 指針與數(shù)組的對(duì)比·····························································································（135）
第 7 章 預(yù)處理和結(jié)構(gòu)體···························································································（138）
7.1 宏定義：#define································································································（138）
7.1.1 無(wú)參宏定義····························································································（138）
7.1.2 帶參宏定義····························································································（140）
7.2 文件包含·········································································································（141）
7.3 條件編譯·········································································································（142）
7.4 宏定義的使用技巧·····························································································（144）
7.5 關(guān)于#和## ·······································································································（146）
7.6 結(jié)構(gòu)體（struct） ·······························································································（147）
7.6.1 內(nèi)存字節(jié)對(duì)齊·························································································（149）
7.6.2 內(nèi)存對(duì)齊的正式原則················································································（152）
7.7 #define 和typedef 的區(qū)別·····················································································（152）
7.8 結(jié)構(gòu)體（struct）和聯(lián)合體（union）的區(qū)別·····························································（153）
7.9 淺談C 語(yǔ)言中的位段·························································································（153）
7.9.1 位段的使用····························································································（154）
7.9.2 位段結(jié)構(gòu)在內(nèi)存中的存儲(chǔ)方式····································································（154）
第 8 章 函數(shù)········································································································（155）
8.1 函數(shù)聲明與定義································································································（155）
8.1.1 定義·····································································································（155）
8.1.2 聲明與定義不同······················································································（156）
8.2 形式參數(shù)和實(shí)際參數(shù)··························································································（157）
8.3 參數(shù)傳遞·········································································································（157）
8.3.1 簡(jiǎn)單變量或數(shù)組元素作為函數(shù)參數(shù)······························································（157）
8.3.2 指針變量或數(shù)組名作為函數(shù)參數(shù)·································································（158）
8.3.3 數(shù)組名作為函數(shù)參數(shù)················································································（159）
8.3.4 結(jié)構(gòu)體數(shù)組作為函數(shù)參數(shù)··········································································（160）
8.4 如何編寫(xiě)有多個(gè)返回值的C 語(yǔ)言函數(shù)····································································（160）
8.4.1 利用全局變量·························································································（161）
8.4.2 傳遞數(shù)組指針·························································································（162）
8.4.3 傳遞結(jié)構(gòu)體指針······················································································（162）
8.5 回調(diào)函數(shù)·········································································································（163）
8.6 變參函數(shù)詳解：printf 函數(shù)的實(shí)現(xiàn)·········································································（165）
8.7 可變參數(shù)的相關(guān)問(wèn)題··························································································（166）
第 9 章 編碼規(guī)范··································································································（170）
9.1 排版···············································································································（170）
9.2 注釋···············································································································（173）
9.3 標(biāo)示符名稱(chēng)······································································································（178）
第 10 章 shell 編程································································································（181）
10.1 什么是shell ····································································································（181）
10.2 幾種流行的shell ······························································································（181）
10.3 shell 程序設(shè)計(jì)（基礎(chǔ)部分） ···········································································（182）
10.3.1 shell 的基本語(yǔ)法·····················································································（182）
10.3.2 shell 程序的變量和參數(shù)············································································（183）
10.4 shell 程序設(shè)計(jì)的流程控制··················································································（185）
10.4.1 test 命令·······························································································（185）
10.4.2 if 條件語(yǔ)句···························································································（186）
10.4.3 for 循環(huán)································································································（187）
10.4.4 while 和until 循環(huán)···················································································（187）
10.4.5 case 條件選擇························································································（189）
10.4.6 無(wú)條件控制語(yǔ)句break 和continue·······························································（189）
10.4.7 函數(shù)定義······························································································（189）
10.5 命令分組·······································································································（190）
10.6 用trap 命令捕捉信號(hào)························································································（190）
10.7 運(yùn)行shell 程序的方法·······················································································（191）
10.8 bash 程序的調(diào)試······························································································（191）
10.9 bash 的內(nèi)部命令······························································································（192）
第 11 章 文件操作·································································································（194）
11.1 Linux 文件結(jié)構(gòu)·······························································································（194）
11.1.1 Linux 文件系統(tǒng)······················································································（194）
11.1.2 Linux 目錄結(jié)構(gòu)······················································································（195）
11.1.3 Linux 文件分類(lèi)······················································································（197）
11.1.4 常見(jiàn)的文件類(lèi)型·····················································································（198）
11.1.5 Linux 文件屬性······················································································（198）
11.2 系統(tǒng)調(diào)用·······································································································（198）
11.3 Linux 文件描述符····························································································（199）
11.4 不帶緩存的I/O 操作·························································································（200）
11.4.1 creat 函數(shù)·····························································································（200）
11.4.2 open 函數(shù)·····························································································（201）
11.4.3 read 函數(shù)······························································································（203）
11.4.4 write 函數(shù)·····························································································（204）
11.4.5 lseek 函數(shù)·····························································································（204）
11.4.6 close 函數(shù)·····························································································（205）
11.4.7 經(jīng)典范例：文件復(fù)制···············································································（205）
11.5 帶緩存的I/O 操作····························································································（207）
11.5.1 3 種類(lèi)型的緩沖······················································································（207）
11.5.2 fopen 函數(shù)····························································································（209）
11.5.3 fclose 函數(shù)····························································································（209）
11.5.4 fdopen 函數(shù)···························································································（210）
11.5.5 fread 函數(shù)·····························································································（210）
11.5.6 fwrite 函數(shù)····························································································（211）
11.5.7 fseek 函數(shù)·····························································································（212）
11.5.8 fgetc 函數(shù)、getc 函數(shù)和getchar 函數(shù)···························································（213）
11.5.9 fputc 函數(shù)、putc 函數(shù)和putchar 函數(shù)···························································（214）
11.6 fgets 函數(shù)與gets 函數(shù)的比較分析········································································（215）
11.7 輸出與輸入····································································································（217）
11.7.1 printf 函數(shù)、fprintf 函數(shù)和sprintf 函數(shù)·························································（217）
11.7.2 scanf 函數(shù)、fcanf 函數(shù)和sscanf 函數(shù)···························································（220）
第12 章 進(jìn)程控制編程·····························································································（222）
12.1 為何需要多進(jìn)程（或者多線程），為何需要并發(fā)····················································（222）
12.1.1 進(jìn)程····································································································（222）
12.1.2 進(jìn)程分類(lèi)······························································································（223）
12.1.3 進(jìn)程的屬性···························································································（223）
12.1.4 父進(jìn)程和子進(jìn)程·····················································································（223）
12.2 Linux 進(jìn)程管理·······························································································（224）
12.2.1 ps 監(jiān)視進(jìn)程工具·····················································································（224）
12.2.2 pgrep 查詢(xún)進(jìn)程工具················································································（226）
12.2.3 終止進(jìn)程的工具kill、killall、pkill 和xkill····················································（226）
12.2.4 top 監(jiān)視系統(tǒng)任務(wù)的工具··········································································（228）
12.2.5 進(jìn)程的優(yōu)先級(jí)：nice 和renice ····································································（229）
12.3 Linux 進(jìn)程的三態(tài)····························································································（230）
12.3.1 三種基本狀態(tài)························································································（230）
12.3.2 三種狀態(tài)間的轉(zhuǎn)換··················································································（231）
12.4 Linux 進(jìn)程結(jié)構(gòu)·······························································································（231）
12.5 Linux 進(jìn)程控制塊PCB ······················································································（232）
12.6 Linux 進(jìn)程調(diào)度·······························································································（233）
12.6.1 調(diào)度的目標(biāo)···························································································（233）
12.6.2 調(diào)度算法······························································································（233）
12.6.3 優(yōu)先級(jí)反轉(zhuǎn)···························································································（235）
12.7 進(jìn)程創(chuàng)建·······································································································（236）
12.7.1 獲取進(jìn)程······························································································（236）
12.7.2 啟動(dòng)進(jìn)程：fork( ) ···················································································（237）
12.7.3 啟動(dòng)進(jìn)程：vfork( )··················································································（240）
12.7.4 啟動(dòng)進(jìn)程：exec 族··················································································（241）
12.7.5 啟動(dòng)進(jìn)程：system···················································································（244）
12.8 進(jìn)程等待·······································································································（245）
12.8.1 僵尸進(jìn)程的產(chǎn)生·····················································································（245）
12.8.2 如何避免僵尸進(jìn)程··················································································（247）
12.8.3 wait 函數(shù)和waitpid 函數(shù)···········································································（247）
12.9 進(jìn)程退出·······································································································（251）
12.9.1 退出方式的不同點(diǎn)··················································································（252）
12.9.2 exit 函數(shù)和_exit 函數(shù)···············································································（252）
12.9.3 exit 函數(shù)和_exit 函數(shù)的區(qū)別······································································（253）
12.10 守護(hù)進(jìn)程······································································································（253）
12.10.1 守護(hù)進(jìn)程概述······················································································（253）
12.10.2 守護(hù)進(jìn)程的創(chuàng)建···················································································（254）
12.10.3 創(chuàng)建守護(hù)進(jìn)程的一般步驟·······································································（254）
12.10.4 利用庫(kù)函數(shù)daemon 創(chuàng)建守護(hù)進(jìn)程····························································（258）
第 13 章 進(jìn)程間通信方式·························································································（260）
13.1 進(jìn)程間通信方式概述························································································（260）
13.1.1 進(jìn)程間通信的目的··················································································（260）
13.1.2 Linux 進(jìn)程間通信方式簡(jiǎn)介·······································································（261）
13.2 管道通信·······································································································（262）
13.2.1 創(chuàng)建無(wú)名管道························································································（262）
13.2.2 讀寫(xiě)無(wú)名管道························································································（263）
13.2.3 無(wú)名管道應(yīng)用實(shí)例··················································································（267）
13.2.4 創(chuàng)建有名管道························································································（269）
13.2.5 讀寫(xiě)有名管道························································································（271）
13.3 管道通信方式的應(yīng)用場(chǎng)景··················································································（274）
13.4 信號(hào)·············································································································（275）
13.4.1 信號(hào)及信號(hào)來(lái)源·····················································································（275）
13.4.2 信號(hào)種類(lèi)······························································································（275）
13.4.3 信號(hào)處理方式························································································（277）
13.4.4 信號(hào)發(fā)送······························································································（277）
13.4.5 自定義信號(hào)處理方式···············································································（279）
13.4.6 信號(hào)集操作···························································································（284）
13.4.7 使用信號(hào)注意事項(xiàng)··················································································（285）
13.5 消息隊(duì)列·······································································································（287）
13.5.1 消息隊(duì)列基礎(chǔ)理論··················································································（287）
13.5.2 使用消息隊(duì)列························································································（288）
13.5.3 消息隊(duì)列API ························································································（289）
13.5.4 消息隊(duì)列的限制·····················································································（292）
13.5.5 消息隊(duì)列的應(yīng)用實(shí)例···············································································（292）
13.6 信號(hào)燈··········································································································（295）
13.6.1 信號(hào)燈概述···························································································（295）
13.6.2 內(nèi)核實(shí)現(xiàn)原理························································································（296）
13.6.3 使用信號(hào)燈···························································································（296）
13.6.4 信號(hào)燈API ···························································································（297）
13.6.5 信號(hào)燈的限制························································································（299）
13.6.6 競(jìng)爭(zhēng)問(wèn)題······························································································（299）
13.6.7 信號(hào)燈應(yīng)用實(shí)例·····················································································（300）
13.7 共享內(nèi)存方式一······························································································（303）
13.7.1 內(nèi)核實(shí)現(xiàn)原理························································································（304）
13.7.2 mmap( )及其相關(guān)系統(tǒng)調(diào)用········································································（304）
13.7.3 mmap( )范例··························································································（306）
13.7.4 對(duì)mmap( )返回地址的訪問(wèn)·······································································（310）
13.8 共享內(nèi)存方式二······························································································（312）
13.8.1 系統(tǒng)V 共享內(nèi)存原理··············································································（312）
13.8.2 系統(tǒng)V 共享內(nèi)存API···············································································（314）
13.8.3 系統(tǒng)V 共享內(nèi)存范例··············································································（314）
第 14 章 多線程編程·························································································（318）
14.1 線程概述···································································································（318）
14.1.1 為什么有了進(jìn)程的概念后，還要再引入線程呢··············································（318）
14.1.2 多線程的優(yōu)點(diǎn)························································································（319）
14.1.3 多線程的缺點(diǎn)························································································（319）
14.2 多線程的實(shí)現(xiàn)·································································································（320）
14.2.1 線程的創(chuàng)建···························································································（320）
14.2.2 終止線程······························································································（322）
14.2.3 等待線程終止························································································（323）
14.3 線程屬性·······································································································（324）
14.3.1 線程屬性初始化·····················································································（324）
14.3.2 線程分離······························································································（325）
14.3.3 線程的繼承性························································································（326）
14.3.4 線程的調(diào)度策略·····················································································（327）
14.3.5 線程的調(diào)度參數(shù)·····················································································（327）
14.3.6 實(shí)例分析······························································································（329）
14.4 線程同步機(jī)制·································································································（330）
14.4.1 互斥鎖（Mutex） ···················································································（330）
14.4.2 互斥鎖使用實(shí)例·····················································································（332）
14.4.3 條件變量（Conditions）···········································································（333）
14.4.4 條件變量使用實(shí)例··················································································（335）
第 15 章 網(wǎng)絡(luò)編程································································································（337）
15.1 TCP/IP 協(xié)議概述····························································································（337）
15.1.1 TCP/IP 協(xié)議的起源·················································································（337）
15.1.2 TCP/IP 協(xié)議的特性與應(yīng)用········································································（338）
15.1.3 互聯(lián)網(wǎng)地址···························································································（339）
15.1.4 域名系統(tǒng)······························································································（340）
15.1.5 封裝····································································································（340）
15.1.6 TCP/IP 協(xié)議的工作模型···········································································（341）
15.1.7 TCP/IP 協(xié)議層······················································································（342）
15.1.8 TCP/IP 協(xié)議的應(yīng)用·················································································（343）
15.1.9 網(wǎng)橋、路由器和網(wǎng)關(guān)···············································································（344）
15.2 TCP 和UDP ····························································································（345）
15.2.1 TCP ····································································································（345）
15.2.2 三次握手······························································································（346）
15.2.3 TCP 數(shù)據(jù)報(bào)頭························································································（347）
15.2.4 UDP ····································································································（348）
15.2.5 協(xié)議的選擇···························································································（348）
15.2.6 端口號(hào)和IP 地址····················································································（348）
15.3 套接字····································································································（349）
15.3.1 Socket 的概念························································································（349）
15.3.2 Socket 的類(lèi)型························································································（349）
15.3.3 Socket 的信息數(shù)據(jù)結(jié)構(gòu)············································································（349）
15.3.4 數(shù)據(jù)存儲(chǔ)優(yōu)先順序的轉(zhuǎn)換·········································································（350）
15.3.5 地址格式轉(zhuǎn)化························································································（351）
15.3.6 名字地址轉(zhuǎn)化························································································（352）
15.4 網(wǎng)絡(luò)編程··································································································（355）
15.4.1 建立Socket 通信····················································································（355）
15.4.2 綁定地址······························································································（356）
15.4.3 監(jiān)聽(tīng)····································································································（358）
15.4.4 接受請(qǐng)求······························································································（358）
15.4.5 連接服務(wù)器···························································································（359）
15.4.6 發(fā)送數(shù)據(jù)······························································································（360）
15.4.7 接收數(shù)據(jù)······························································································（362）
15.5 采用TCP 協(xié)議的C/S 架構(gòu)實(shí)現(xiàn)·····································································（363）
15.5.1 模塊封裝······························································································（363）
15.5.2 服務(wù)器端的實(shí)現(xiàn)·····················································································（365）
15.5.3 客戶(hù)端的實(shí)現(xiàn)························································································（366）
15.6 并發(fā)服務(wù)器模型························································································（367）
15.6.1 多進(jìn)程解決方案·····················································································（367）
15.6.2 多線程解決方案·····················································································（368）
15.6.3 調(diào)用fcntl 將sockfd 設(shè)置為非阻塞模式························································（374）
15.7 多路轉(zhuǎn)接模型······················································.··································（374）
15.7.1 服務(wù)器端的實(shí)現(xiàn)·····················································································（375）
15.7.2 客戶(hù)端的實(shí)現(xiàn)························································································（379）
15.8 采用UDP 的C/S 架構(gòu)的實(shí)現(xiàn)··············································································（381）
15.8.1 服務(wù)器端的實(shí)現(xiàn)·····················································································（381）
15.8.2 客戶(hù)端的實(shí)現(xiàn)························································································（382）
15.8.3 UDP 傳輸文件的實(shí)現(xiàn)··············································································（383）
第 16 章 SQLite3 數(shù)據(jù)庫(kù)編程··················································································（386）
16.1 SQLite 數(shù)據(jù)庫(kù)簡(jiǎn)介···························································································（386）
16.2 SQLite3 的命令·······························································································（387）
16.3 SQLite 編程接口······························································································（389）
16.3.1 數(shù)據(jù)庫(kù)的打開(kāi)與關(guān)閉···············································································（389）
16.3.2 數(shù)據(jù)庫(kù)的語(yǔ)句執(zhí)行··················································································（390）
16.3.3 數(shù)據(jù)庫(kù)查詢(xún)語(yǔ)句操作···············································································（391）
第 17 章 高性能服務(wù)器設(shè)計(jì)······················································································（395）
17.1 select 系統(tǒng)調(diào)用································································································（395）
17.1.1 select API······························································································（395）
17.1.2 fd_set···································································································（396）
17.1.3 文件描述符就緒條件···············································································（397）
17.1.4 select 實(shí)現(xiàn)TCP 循環(huán)服務(wù)器案例分析··························································（397）
17.2 poll 系統(tǒng)調(diào)用··································································································（400）
17.2.1 poll API································································································（400）
17.2.2 poll 函數(shù)的事件標(biāo)識(shí)符·············································································（400）
17.2.3 返回值和錯(cuò)誤代碼··················································································（401）
17.2.4 poll 實(shí)現(xiàn)TCP 循環(huán)服務(wù)器案例分析·····························································（401）
17.3 epoll 系列系統(tǒng)調(diào)用···························································································（404）
17.3.1 select 的缺陷·························································································（404）
17.3.2 內(nèi)核事件表···························································································（405）
17.3.3 epoll_wait 函數(shù)·······················································································（405）
17.3.4 LT 模式和ET 模式·················································································（406）
17.4 xinetd 配置·····································································································（406）
17.4.1 Linux 守護(hù)進(jìn)程······················································································（406）
17.4.2 超級(jí)服務(wù)xinetd······················································································（407）
17.4.3 xinetd 配置文件······················································································（407）
參考文獻(xiàn)·········································································································（409）