TC官方文档翻译11----文件操作API(Tokyo Cabinet/Tokyo Tyarnt 文档系列)

/**
* 转载请注明出处, 由于个人技术能力有限, 英语水平欠缺,
* 有翻译不合适或错误的地方, 请纠正,
* 希望不要因为我的错误误导您, 希望您的智慧可以加入.
* @translator: selfimpr
* @mail: [email protected]
* @blog: http://blog.csdn.net/lgg201
*/

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文件系统 API

char *tcrealpath(const char *path);

返回指定路径的全路径 , 如果给定的路径是非法的 , 则返回 NULL

bool tcstatfile(const char *path, bool *isdirp, int64_t *sizep, int64_t *mtimep);

获取文件的状态信息 , 如果成功返回 true, 否则返回 false, 成功后 isdirp 中将记录文件是否是目录 , sizep 用来记录文件的大小 , mtimep 用来记录文件最后修改时间

void *tcreadfile(const char *path, int limit, int *sp);

读取一个文件的内容 , path NULL , 将从标准输入中进行读取 , limit 则指定了读取多少个字符 , sp 将在最终用来记录读取到的数据量 , 返回值就是读取到的内容 .

TCLIST *tcreadfilelines(const char *path);

读取文件的每一行并存入一个列表对象中 . 如果 path 指定为 NULL, 将会从标准输入中读取 .

bool tcwritefile(const char *path, const void *ptr, int size);

向指定文件中写入内容 , 如果 path NULL, 将会向标准输出写入 , 写入成功返回 true, 否则返回 false

bool tccopyfile(const char *src, const char *dest);

拷贝文件 , 如果 dest 指定的文件已经存在 , 将会被覆盖 . 复制成功返回 true, 否则返回 false

TCLIST *tcreaddir(const char *path);

读取指定目录 , 并返回列表形式的文件名

TCLIST *tcglobpat(const char *pattern);

获取所有匹配给定模式的文件名列表

bool tcremovelink(const char *path);

删除给定的文件或目录 , 如果是目录 , 还会递归的删除孩子

bool tcwrite(int fd, const void *buf, size_t size);

把给定的内容 buf 写入到指定的文件描述符对应的文件中

bool tcread(int fd, void *buf, size_t size);

从给定的文件描述符对应文件中读取内容到 buf , size 指定了 buf 的大小

bool tclock(int fd, bool ex, bool nb);

通过 fcntl() 函数设置文件锁 , fd 指定文件描述符 , ex 指定是互斥锁还是共享锁 ( 只读锁 ), ex true 表示是互斥锁 , nb 指定是否等待锁定 , nb false , 会一直等待直到这个锁定请求完成 .

bool tcunlock(int fd);

解锁文件 .

int tcsystem(const char **args, int anum);

执行一个 shell 命令 , args 是一个字符串数组 , 用来指定命令和它的参数 , anum 指明该数组大小 .

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