표준 기호 상수와 형

표준 기호 상수와 형을 선언한다. More...

Collaboration diagram for 표준 기호 상수와 형:

Macros
#define	STDERR_FILENO   2 /* Standard error output */
#define	STDIN_FILENO   0 /* Standard input */
#define	STDOUT_FILENO   1 /* Standard output */

Functions
void	_exit (int ret)
int	access (const char *path, int mode)
unsigned	alarm (unsigned sec)
int	brk (void *ptr)
int	chdir (const char *path)
int	chown (const char *path, uid_t uid, gid_t gid)
int	close (int fd)
size_t	confstr (int name, char *buf, size_t len)
char *	crypt (const char *key, const char *salt)
char *	ctermid (char *s)
int	dup (int fd)
int	dup2 (int oldfd, int newfd)
void	encrypt (char block[64], int edflat)
int	execl (const char *path, const char *arg,...)
int	execle (const char *path, const char *arg,...)
int	execlp (const char *path, const char *arg,...)
int	execv (const char *path, char *const argv[])
int	execve (const char *path, const char *const argv[], char *const envp[])
int	execvp (const char *path, char *const argv[])
int	faccessat (int dirfd, const char *path, int mode, int flag)
int	fchdir (int fd)
int	fchown (int fd, uid_t uid, gid_t gid)
int	fchownat (int dirfd, const char *path, uid_t uid, gid_t gid, int flag)
int	fdatasync (int fd)
int	fexecve (int fd, char *const argv[], char *const env[])
pid_t	fork (void)
long	fpathconf (int fd, int name)
int	fsync (int fd)
int	ftruncate (int fd, off_t off)
char *	getcwd (char *buf, size_t size)
gid_t	getegid (void)
uid_t	geteuid (void)
gid_t	getgid (void)
int	getgroups (int size, gid_t list[])
long	gethostid (void)
int	gethostname (char *buf, size_t size)
char *	getlogin (void)
int	getlogin_r (char *buf, size_t size)
int	getopt (int argc, char *const argv[], const char *optstring)
pid_t	getpgid (pid_t pid)
pid_t	getpgrp (void)
pid_t	getpid (void)
pid_t	getppid (void)
pid_t	getsid (pid_t pid)
uid_t	getuid (void)
int	isatty (int fd)
int	lchown (const char *path, uid_t owner, gid_t group)
int	link (const char *oldpath, const char *newpath)
int	linkat (int olddirfd, const char *oldname, int newdirfd, const char *newname, int flags)
int	lockf (int fd, int cmd, off_t len)
off_t	lseek (int fd, off_t offset, int whence)
int	nice (int val)
long	pathconf (const char *path, int name)
int	pause (void)
int	pipe (int fds[2])
ssize_t	pread (int fd, void *buf, size_t size, off_t offset)
ssize_t	pwrite (int fd, const void *buf, size_t size, off_t offset)
ssize_t	read (int fd, void *buf, size_t size)
ssize_t	readlink (const char *restrict path, char *restrict buf, size_t bufsz)
ssize_t	readlinkat (int dirfd, const char *restrict path, char *restrict buf, size_t size)
int	rmdir (const char *path)
void *	sbrk (intptr_t increment)
int	setegid (gid_t gid)
int	seteuid (uid_t uid)
int	setgid (gid_t gid)
int	setpgid (pid_t pid, pid_t pgid)
pid_t	setpgrp (void)
int	setregid (gid_t rgid, gid_t egid)
int	setreuid (uid_t ruid, uid_t euid)
pid_t	setsid (void)
int	setuid (uid_t euid)
unsigned	sleep (unsigned secs)
void	swab (const void *restrict from, void *restrict to, ssize_t size)
int	symlink (const char *oldpath, const char *newpath)
int	symlinkat (const char *oldpath, int newdirfd, const char *newpath)
void	sync (void)
long	sysconf (int name)
pid_t	tcgetpgrp (int fd)
int	tcsetpgrp (int fd, pid_t pid)
int	truncate (const char *file, off_t offset)
char *	ttyname (int fd)
int	ttyname_r (int fd, char *buf, size_t size)
int	unlink (const char *file)
int	unlinkat (int dirfd, const char *file, int flags)
ssize_t	write (int fd, const void *buf, size_t size)

Variables
char **	environ
char *	optarg
int	opterr
int	optind
int	optopt

Detailed Description

표준 기호 상수와 형을 선언한다.

Date

2011-8-26

Author

Sung-jae Park nices.nosp@m.j@ni.nosp@m.cesj..nosp@m.com

Macro Definition Documentation

#define STDERR_FILENO   2 /* Standard error output */

Definition at line 16 of file unistd.h.

Referenced by thread_get_stderr().

#define STDIN_FILENO   0 /* Standard input */

Definition at line 14 of file unistd.h.

Referenced by thread_get_stdin().

#define STDOUT_FILENO   1 /* Standard output */

Definition at line 15 of file unistd.h.

Referenced by thread_get_stdout().

Function Documentation

void _exit

(

int

ret)

Parameters

[in]

ret

Returns

See Also

int access	(	const char *	path,
		int	mode
	)

Parameters

[in]	path
[in]	mode

Returns

See Also

unsigned alarm

(

unsigned

sec)

Parameters

[in]

sec

Returns

See Also

int brk

(

void *

ptr)

Parameters

[in]

ptr

Returns

int

See Also

sbrk()

Definition at line 297 of file malloc.c.

References EBUSY, chunk::head, irq_local_restore(), irq_local_save(), list_entry, NEED_LOCK_TEST_BEGIN, NEED_LOCK_TEST_END, and chunk::size.

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int chdir

(

const char *

path)

Parameters

[in]

path

Returns

See Also

int chown	(	const char *	path,
		uid_t	uid,
		gid_t	gid
	)

Parameters

[in]	path
[in]	uid
[in]	gid

Returns

See Also

int close

(

int

fd)

Parameters

[in]

fd

Returns

See Also

Definition at line 141 of file open.c.

References EFAULT, thread::file_ctx, file::object, object_destroy(), pthread_self(), and thread_file_ctx::table.

Referenced by create_fat_cache(), and destroy_fat_cache().

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size_t confstr	(	int	name,
		char *	buf,
		size_t	len
	)

Parameters

[in]	name
[in]	buf
[in]	len

Returns

See Also

char* crypt	(	const char *	key,
		const char *	salt
	)

Parameters

[in]	key
[in]	salt

Returns

See Also

char* ctermid

(

char *

s)

Parameters

[in]

s

Returns

See Also

int dup

(

int

fd)

Parameters

[in]

fd

Returns

See Also

int dup2	(	int	oldfd,
		int	newfd
	)

Parameters

[in]	oldfd
[in]	newfd

Returns

See Also

void encrypt	(	char	block[64],
		int	edflat
	)

Parameters

[in]	block
[in]	edflat

Returns

See Also

int execl	(	const char *	path,
		const char *	arg,
			...
	)

Parameters

[in]	path
[in]	arg
[in]	...

Returns

See Also

Todo:

path 에 해당 하는 파일을 읽어서, 알맞은 binfmt 객체를 찾은 후, 실행 코드와 데이터들을 메모리에 로딩하고, 사용자 쓰레드용 스택 을 구성하고 thread->esp 를 갱신한 후 thread switching 이 발생 하도록 유도하여, user level thread 로 context switching 되도록 한다.

Definition at line 326 of file pthread_fork.c.

References assert, thread::attr, ENOSYS, thread_attr::is_first, pthread_self(), va_end, and va_start.

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int execle	(	const char *	path,
		const char *	arg,
			...
	)

Parameters

[in]	path
[in]	arg
[in]	...

Returns

See Also

Todo:

path 에 해당 하는 파일을 읽어서, 알맞은 binfmt 객체를 찾은 후, 실행 코드와 데이터들을 메모리에 로딩하고, 사용자 쓰레드용 스택 을 구성하고 thread->esp 를 갱신한 후 thread switching 이 발생 하도록 유도하여, user level thread 로 context switching 되도록 한다.

Definition at line 354 of file pthread_fork.c.

References assert, thread::attr, ENOSYS, thread_attr::is_first, pthread_self(), va_end, and va_start.

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int execlp	(	const char *	path,
		const char *	arg,
			...
	)

Parameters

[in]	path
[in]	arg
[in]	...

Returns

See Also

Todo:

path 에 해당 하는 파일을 읽어서, 알맞은 binfmt 객체를 찾은 후, 실행 코드와 데이터들을 메모리에 로딩하고, 사용자 쓰레드용 스택 을 구성하고 thread->esp 를 갱신한 후 thread switching 이 발생 하도록 유도하여, user level thread 로 context switching 되도록 한다.

Definition at line 382 of file pthread_fork.c.

References assert, thread::attr, ENOSYS, thread_attr::is_first, pthread_self(), va_end, and va_start.

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int execv	(	const char *	path,
		char *const	argv[]
	)

Parameters

[in]	path
[in]	argv

Returns

See Also

Note

커널 쓰레드는 사용자 쓰레드로 변경 될 수 없다.

Todo:

path 에 해당 하는 파일을 읽어서, 알맞은 binfmt 객체를 찾은 후, 실행 코드와 데이터들을 메모리에 로딩하고, 사용자 쓰레드용 스택 을 구성하고 thread->esp 를 갱신한 후 thread switching 이 발생 하도록 유도하여, user level thread 로 context switching 되도록 한다.

Definition at line 410 of file pthread_fork.c.

References assert, thread::attr, ENOSYS, thread_attr::is_first, and pthread_self().

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int execve	(	const char *	path,
		const char *const	argv[],
		char *const	envp[]
	)

Parameters

[in]	path
[in]	argv
[in]	envp

Returns

See Also

int execvp	(	const char *	path,
		char *const	argv[]
	)

Parameters

[in]	path
[in]	argv

Returns

See Also

Todo:

path 에 해당 하는 파일을 읽어서, 알맞은 binfmt 객체를 찾은 후, 실행 코드와 데이터들을 메모리에 로딩하고, 사용자 쓰레드용 스택 을 구성하고 thread->esp 를 갱신한 후 thread switching 이 발생 하도록 유도하여, user level thread 로 context switching 되도록 한다.

Definition at line 464 of file pthread_fork.c.

References assert, thread::attr, ENOSYS, thread_attr::is_first, and pthread_self().

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int faccessat	(	int	dirfd,
		const char *	path,
		int	mode,
		int	flag
	)

Parameters

[in]	dirfd
[in]	path
[in]	mode
[in]	flag

Returns

See Also

int fchdir

(

int

fd)

Parameters

[in]

fd

Returns

See Also

int fchown	(	int	fd,
		uid_t	uid,
		gid_t	gid
	)

Parameters

[in]	fd
[in]	uid
[in]	gid

Returns

See Also

int fchownat	(	int	dirfd,
		const char *	path,
		uid_t	uid,
		gid_t	gid,
		int	flag
	)

Parameters

[in]	dirfd
[in]	path
[in]	uid
[in]	gid
[in]	flag

Returns

See Also

int fdatasync

(

int

fd)

Parameters

[in]

fd

Returns

See Also

int fexecve	(	int	fd,
		char *const	argv[],
		char *const	env[]
	)

Parameters

[in]	fd
[in]	argv
[in]	env

Returns

See Also

pid_t fork

(

void

)

Returns

See Also

Note

커널 쓰레드를 fork 하는 것은 같은 page table 을 쓰는 상태에서 fork 하는 것으로, vfork 와 그 기능이 같다. 그러나, vfork 라는 concept 자체는 page table 을 모두 복사하는 (COW가 소개되기 이전) 방식이 사용될 때 소개된 것 으로 현재는 잘 쓰지 않는 방식이다. 굳이 nckernel 에서 kernel thread 를 fork 하지 않아도 된다. 이 함수는 nckernel 에서는 구현하지 않는다.

Definition at line 222 of file pthread_fork.c.

References ENOSYS.

long fpathconf	(	int	fd,
		int	name
	)

Parameters

[in]	fd
[in]	name

Returns

See Also

int fsync

(

int

fd)

Parameters

[in]

fd

Returns

See Also

int ftruncate	(	int	fd,
		off_t	off
	)

Parameters

[in]	fd
[in]	off

Returns

See Also

char* getcwd	(	char *	buf,
		size_t	size
	)

Parameters

[in]	buf
[in]	size

Returns

See Also

gid_t getegid

(

void

)

Returns

See Also

uid_t geteuid

(

void

)

Returns

See Also

gid_t getgid

(

void

)

Returns

See Also

int getgroups	(	int	size,
		gid_t	list[]
	)

Parameters

[in]	size
[in]	list

Returns

See Also

long gethostid

(

void

)

Returns

See Also

int gethostname	(	char *	buf,
		size_t	size
	)

Parameters

[in]	buf
[in]	size

Returns

See Also

char* getlogin

(

void

)

Returns

See Also

int getlogin_r	(	char *	buf,
		size_t	size
	)

Parameters

[in]	buf
[in]	size

Returns

See Also

int getopt	(	int	argc,
		char *const	argv[],
		const char *	optstring
	)

Parameters

[in]	argc
[in]	argv
[in]	optstring

Returns

See Also

pid_t getpgid

(

pid_t

pid)

Parameters

[in]

pid

Returns

See Also

pid_t getpgrp

(

void

)

Returns

See Also

pid_t getpid

(

void

)

Returns

See Also

pid_t getppid

(

void

)

Returns

See Also

pid_t getsid

(

pid_t

pid)

Parameters

[in]

pid

Returns

See Also

uid_t getuid

(

void

)

Returns

See Also

int isatty

(

int

fd)

Parameters

[in]

fd

Returns

See Also

int lchown	(	const char *	path,
		uid_t	owner,
		gid_t	group
	)

Parameters

[in]	path
[in]	owner
[in]	group

Returns

See Also

int link	(	const char *	oldpath,
		const char *	newpath
	)

Parameters

[in]	oldpath
[in]	newpath

Returns

See Also

int linkat	(	int	olddirfd,
		const char *	oldname,
		int	newdirfd,
		const char *	newname,
		int	flags
	)

Parameters

[in]	olddirfd
[in]	oldname
[in]	newdirfd
[in]	newname
[in]	flags

Returns

See Also

int lockf	(	int	fd,
		int	cmd,
		off_t	len
	)

Parameters

[in]	fd
[in]	cmd
[in]	len

Returns

See Also

off_t lseek	(	int	fd,
		off_t	offset,
		int	whence
	)

Parameters

[in]	fd
[in]	offset
[in]	whence

Returns

See Also

Definition at line 57 of file open.c.

References file::ctx, EFAULT, EINVAL, EPERM, thread::file_ctx, ninfo_ops::lseek, entry::nctx, entry::ninfo, ninfo::nops, pthread_self(), and thread_file_ctx::table.

Referenced by update_fat_cache().

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int nice

(

int

val)

Parameters

[in]

val

Returns

See Also

long pathconf	(	const char *	path,
		int	name
	)

Parameters

[in]	path
[in]	name

Returns

See Also

int pause

(

void

)

Returns

See Also

int pipe

(

int

fds[2])

Parameters

[in]

fds

Returns

See Also

ssize_t pread	(	int	fd,
		void *	buf,
		size_t	size,
		off_t	offset
	)

Parameters

[in]	fd
[in]	buf
[in]	size
[in]	offset

Returns

See Also

ssize_t pwrite	(	int	fd,
		const void *	buf,
		size_t	size,
		off_t	offset
	)

Parameters

[in]	fd
[in]	buf
[in]	size
[in]	offset

Returns

See Also

ssize_t read	(	int	fd,
		void *	buf,
		size_t	size
	)

Parameters

[in]	fd
[in]	buf
[in]	size

Returns

See Also

Definition at line 85 of file open.c.

References file::ctx, EFAULT, EINVAL, EPERM, thread::file_ctx, entry::nctx, entry::ninfo, ninfo::nops, pthread_self(), ninfo_ops::read, and thread_file_ctx::table.

Referenced by update_fat_cache().

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ssize_t readlink	(	const char *restrict	path,
		char *restrict	buf,
		size_t	bufsz
	)

Parameters

[in]	path
[in]	buf
[in]	bufsz

Returns

See Also

ssize_t readlinkat	(	int	dirfd,
		const char *restrict	path,
		char *restrict	buf,
		size_t	size
	)

Parameters

[in]	dirfd
[in]	path
[in]	buf
[in]	size

Returns

See Also

int rmdir

(

const char *

path)

Parameters

[in]

path

Returns

See Also

void* sbrk

(

intptr_t

increment)

Parameters

[in]

increment

Returns

void*

See Also

brk()

Definition at line 350 of file malloc.c.

References chunk::head, irq_local_restore(), irq_local_save(), list_entry, NEED_LOCK_TEST_BEGIN, NEED_LOCK_TEST_END, NULL, and chunk::size.

Referenced by malloc(), and posix_memalign().

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int setegid

(

gid_t

gid)

Parameters

[in]

gid

Returns

See Also

int seteuid

(

uid_t

uid)

Parameters

[in]

uid

Returns

See Also

int setgid

(

gid_t

gid)

Parameters

[in]

gid

Returns

See Also

int setpgid	(	pid_t	pid,
		pid_t	pgid
	)

Parameters

[in]	pid
[in]	pgid

Returns

See Also

pid_t setpgrp

(

void

)

Returns

pid_t

See Also

int setregid	(	gid_t	rgid,
		gid_t	egid
	)

Parameters

[in]	rgid
[in]	egid

Returns

See Also

int setreuid	(	uid_t	ruid,
		uid_t	euid
	)

Parameters

[in]	ruid
[in]	euid

Returns

See Also

pid_t setsid

(

void

)

Returns

pid_t

See Also

int setuid

(

uid_t

euid)

Parameters

[in]

euid

Returns

See Also

unsigned sleep

(

unsigned

secs)

Parameters

[in]

secs

Returns

See Also

void swab	(	const void *restrict	from,
		void *restrict	to,
		ssize_t	size
	)

Parameters

[in]	from
[in]	to
[in]	size

Returns

See Also

int symlink	(	const char *	oldpath,
		const char *	newpath
	)

Parameters

[in]	oldpath
[in]	newpath

Returns

See Also

int symlinkat	(	const char *	oldpath,
		int	newdirfd,
		const char *	newpath
	)

Parameters

[in]	oldpath
[in]	newdirfd
[in]	newpath

Returns

See Also

void sync

(

void

)

Returns

void

See Also

long sysconf

(

int

name)

Parameters

[in]

name

Returns

See Also

Definition at line 8 of file sysconf.c.

References _SC_PAGESIZE, and PAGESIZE.

Referenced by free(), initm_alloc(), initm_free(), initm_init(), malloc(), onetime_map_init(), onetime_unmap(), page_allocator_get_region(), page_allocator_info_size(), page_allocator_init(), page_fault_handler(), pthread_self(), valloc(), vm_init(), and vm_init_done().

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pid_t tcgetpgrp

(

int

fd)

Parameters

[in]

fd

Returns

See Also

int tcsetpgrp	(	int	fd,
		pid_t	pid
	)

Parameters

[in]	fd
[in]	pid

Returns

See Also

int truncate	(	const char *	file,
		off_t	offset
	)

Parameters

[in]	file
[in]	offset

Returns

See Also

char* ttyname

(

int

fd)

Parameters

[in]

fd

Returns

See Also

int ttyname_r	(	int	fd,
		char *	buf,
		size_t	size
	)

Parameters

[in]	fd
[in]	buf
[in]	size

Returns

See Also

int unlink

(

const char *

file)

Parameters

[in]

file

Returns

See Also

int unlinkat	(	int	dirfd,
		const char *	file,
		int	flags
	)

Parameters

[in]	dirfd
[in]	file
[in]	flags

Returns

See Also

ssize_t write	(	int	fd,
		const void *	buf,
		size_t	size
	)

Parameters

[in]	fd
[in]	buf
[in]	size

Returns

See Also

Definition at line 113 of file open.c.

References file::ctx, EFAULT, EINVAL, EPERM, thread::file_ctx, entry::nctx, entry::ninfo, ninfo::nops, pthread_self(), thread_file_ctx::table, and ninfo_ops::write.

Referenced by fflush(), and fputc().

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Variable Documentation

char** environ

Definition at line 11 of file stdlib.c.

Referenced by getenv().

char* optarg

int opterr

int optind

int optopt