Mysql源码学习――源码目录结构_MySQL
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Mysql源码结构
目录清单
目录名 注释
Bdb 伯克利DB表引擎
BUILD 构建工程的脚本
Client 客户端
Cmd-line-utils 命令行工具
Config 构建工程所需的一些文件
Dbug Fred Fish的调试库
Docs 文档文件夹
Extra 一些相对独立的次要的工具
Heap HEAP表引擎
Include 头文件
Innobase INNODB表引擎
Libmysql 动态库
Libmysql_r 为了构建线程安全的libmysql库
Libmysqld 服务器作为一个嵌入式的库
Man 用户手册
Myisam MyISAM表引擎
Myisammrg MyISAM Merge表引擎
Mysql-test mysqld的测试单元
Mysys MySQL的系统库
Ndb Mysql集群
Netware Mysql网络版本相关文件
NEW-RPM 部署时存放RPM
Os2 针对OS/2操作系统的底层函数
Pstack 进行堆栈
Regex 正则表达式库（包括扩展的正则表达式函数）
SCCS 源码控制系统（不是源码的一部分）
Scripts 批量SQL脚本，如初始化库脚本
Server-tools 管理工具
Sql 处理SQL命令；Mysql的核心
Sql-bench Mysql的标准检查程序
Sql-common 一些sql文件夹相关的C文件
SSL 安全套接字层
Strings 字符串函数库
Support-files 用于在不同系统上构建Mysql的文件
Tests 包含Perl和C的测试
Tools
Vio 虚拟I/O库
Zlib 数据压缩库，用于WINDOWS
下面给出几个比较重要的目录清单：
文件清单
目录名 文件名 注释
Client
get_password.c 命令行输入密码
Mysql.cc MySQL命令行工具
Mysqladmin.cc 数据库weihu
Mysqldump.c 将表的内容以SQL语句输出，即逻辑备份
Mysqlimport.c 文本文件数据导入表中
Mysqlmanager-pwgen.c 密码生成
Mysqlshow.c 显示数据库，表和列
Mysqltest.c 被mysql测试单元使用的测试程序
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MYSYS
Array.c 动态数组
Charset.c 动态字符集，默认字符集
Charset-def.c 包含客户端使用的字符集
Checksum.c 为内存块计算校验和，用于pack_isam
Default.c 从*.cnf和*.ini文件中查找默认配置项
Default_modify.c 编辑可选项
Errors.c 英文错误文本
Hash.c hash查找、比较、释放函数
List.c 双向链表
Make-conf.c 创建*.conf文件
Md5.c MD5算法
Mf_brkhant.c
Mf_cache.c 打开临时文件,并使用io_cache进行缓存
Mf_driname.c 解析，转换路径名
Mf_fn_ext.c 获取文件名的后缀
Mf_format.c 格式化文件名
Mf_getdate 获取日期：
yyyy-mm-dd hh:mm:ss format
mf_iocache.c 缓存I/O
mf_iocaches.c 多键值缓存
mf_loadpath.c 获取全路径名
mf_pack.c 创建需要的压缩/非压缩文件名
mf_path.c 决定是否程序可以找到文件
mf_qsort.c 快速排序
mf_qsort2.c 快速排序2
mf_radix.c 基数排序
mf_soundex.c 探测算法（EDN NOV 14, 1985）
mf_strip.c 去字符串结尾空格
mf_tempdir.c 临时文件夹的创建、查找、删除
mf_tempfile.c 临时文件的创建
mf_unixpath.c 转化文件名为UNIX风格
mf_util.c 常用函数
mf_wcomp.c 使用通配符比较
mf_wfile.c 通配符查找文件
mulalloc.c 同时分配多个指针
my_access.c 检查文件或路径是否合法
my_aes.c AES加密算法
my_alarm.c 警报相关
my_alloc.c 同时分配临时结果集缓存
my_append.c 一个文件到另一个
my_bit.c 除法使用，位运算
my_bitmap.c 位图
my_chsize.c 填充或截断一个文件
my_clock.c 时钟函数
my_compress.c 压缩
my_copy.c 拷贝文件
my_crc32.c
my_create.c 创建文件
my_delete.c 删除文件
my_p.c 获取文件名
my_dup.c 打开复制文件
my_error.c 错误码
my_file.c
my_fopen.c 打开文件
my_fstream.c 文件流读/写
my_gethostbyname.c 获取主机名
my_gethwaddr.c 获取硬件地址
my_getopt.c 查找生效的选项
my_getsystime.c time of day
my_getwd.c 获取工作目录
my_handler.c
my_init.c 初始化变量和函数
my_largepage.c 获取OS的分页大小
my_lib.c 比较/转化目录名和文件名
my_lock.c 锁住文件
my_lockmem.c 分配一块被锁住的内存
my_lread.c 读取文件到内存
my_lwrite.c 内存写入文件
my_malloc.c 分配内存
my_messnc.c 标准输出上输出消息
my_mkdir.c 创建目录
my_mmap.c 内存映射
my_net.c net函数
my_netware.c Mysql网络版
my_once.c 一次分配，永不free
my_open.c 打开一个文件
my_os2cond.c 操作系统cond的简单实现
my_os2dirsrch.c 模拟Win32目录查询
my_os2dlfcn.c 模拟UNIX动态装载
my_os2file64.c 文件64位设置
my_os2mutex.c 互斥量
my_os2thread.c 线程
my_os2tls.c 线程本地存储
my_port.c
my_pthread.c 线程的封装
my_quick.c 读/写
my_read.c 从文件读bytes
my_realloc.c 重新分配内存
my_redel.c 重命名和删除文件
my_seek.c 查找
my_semaphore.c 信号量
my_sleep.c 睡眠等待
my_static.c 静态变量
my_symlink.c 读取符号链接
my_symlink2.c 2
my_sync.c 同步内存和文件
my_thr_init.c 初始化/分配线程变量
my_wincond.c
my_windac.c WINDOWS NT/2000自主访问控制
my_winsem.c 模拟线程
my_winthread.c 模拟线程
my_write.c 写文件
ptr_cmp.c 字节流比较函数
queue,c 优先级队列
raid2.c 支持RAID
rijndael.c AES加密算法
safemalloc.c 安全的malloc
sha1.c sha1哈希加密算法
string.c 字符串函数
testhash.c 测试哈希函数（独立程序）
test_charset 测试字符集(独立)
thr_lock.c 读写锁
thr_mutex.c 互斥量
thr_rwlock.c 同步读写锁
tree.c 二叉树
typelib.c 字符串中匹配字串
SQL
derror.cc 读取独立于语言的信息文件
Des_key_file.cc 加载DES密钥
Discover.cc frm文件的查找
Field.cc 存储列信息
Filed_conv.cc 拷贝字段信息
Filesort.cc 结果集排序（内存或临时文件）
Frm_crypt.cc get_crypt_from_frm
Gen_lex_hash.cc 查找、排列SQL关键字
Gstream.c GIS
Handler.cc 函数句柄
Hash_filo.cc 静态大小HASH表，
以FIFO方式存储主机名、IP表
Ha_berkeley.cc BDB的句柄
Ha_innodb.cc INNODB句柄
Hostname.cc 根据IP获取hostname
Init.cc 初始化和unireg相关的函数
item.cc item函数
item_buff.cc item的保存和比较的缓存
item_cmpfunc.cc 比较函数的定义
item_create.cc 创建一个item
item_func.cc 数字函数
item_geofunc.cc 集合函数
item_row.cc 记录项比较
item_strfunc.cc 字符串函数
item_subselect.cc 子查询
item_sum.cc 集函数（SUM,AVG...）
item_timefunc.cc 时间日期函数
item_uniq.cc 空文件
Key.cc 创建KEY以及比较
Lock.cc 锁
Log.cc 日志
log_event.cc 日志事件
Matherr.c 处理溢出
mf_iocache.cc 顺序读写的缓存
Mysqld.cc main，处理信号和连接
mf_decimal.cc decimal类型
my_lock.c
net_serv.cc socket数据包的解析
nt_servc.cc NT服务
opt_range.cc KEY排序
opt_sum.cc 集函数优化
parse_file.cc frm解析
Password.c 密码检查
Procedure.cc
Protocol.cc 数据包打包发送给客户端
protocol_cursor.cc 存储返送数据
Records.cc 读取记录集
repl_failsafe.cc
set_var.cc 设置、读取用户变量
Slave.cc slave节点
Sp.cc 存储过程和存储函数
sp_cache.cc
sp_head.cc
sp_pcontext.cc
sp_rcontext.cc
Spatial.cc 集合函数，点线面
Sql_acl.cc ACL
sql_analyse.cc
sql_base.cc 基础函数
sql_cache.cc 查询缓存
sql_client.cc
sql_crypt.cc 加解密
sql_db.cc 创建、删除DB
sql_delete.cc DELETE语句
sql_derived.cc 派生表
sql_do.cc DO
sql_error.cc 错误和警告
sql_handler.cc
sql_help.cc HELP
sql_insert.cc INSERT
sql_lex.cc 词法分析
sql_list.cc
sql_load.cc LOAD DATA 语句
sql_manager.cc 维护工作
sql_map.cc 内存映射
sql_olap.cc
sql_parse.cc 解析语句
sql_prepare.cc
sql_rename.cc 重命名table名
sql_repl.cc 复制
sql_select.cc SELECT和JOIN优化
sql_show.cc SHOW
sql_state.c 错误号和状态的映射
sql_string.cc
sql_table.cc DROP TABLE、ALTER TABLE
sql_trigger.cc 触发器
sql_udf.cc 用户自定义函数
sql_union.cc UNION操作符
sql_update.cc UPDATE
sql_view.cc 视图
Stacktrace.c 显示堆栈（LINUX/INTEL ONLY）
Strfunc.cc
Table.cc 表元数据获取（FRM）
thr_malloc.cc
Time.cc
Uniques.cc 副本的快速删除
Unireg.cc 创建一个FRM
更多内容请参考：
http://forge.mysql.com/wiki/MySQL_Internals_Files_In_MySQL_Sources#The_sql_Directory
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