outb()函數(shù) Unix/Linux

1. outb()函數(shù) Unix/Linux

getpeername()函數(shù) Unix/Linux

1. getpeername()函數(shù) Unix/Linux

io_setup()函數(shù) Unix/Linux

1. io_setup()函數(shù) Unix/Linux

mknod()函數(shù) Unix/Linux

1. mknod()函數(shù) Unix/Linux

arch_prctl()函數(shù) Unix/Linux

1. arch_prctl()函數(shù) Unix/Linux

inotify_add_watch()函數(shù) Unix/Linux

1. inotify_add_watch()函數(shù) Unix/Linux

chmod()函數(shù) Unix/Linux

1. chmod()函數(shù) Unix/Linux

_exit()函數(shù) Unix/Linux

1. _exit()函數(shù) Unix/Linux

epoll_ctl()函數(shù) Unix/Linux

1. epoll_ctl()函數(shù) Unix/Linux

Unix/Linux系統(tǒng)調(diào)用

1. Unix/Linux系統(tǒng)調(diào)用

futimesat()函數(shù) Unix/Linux

1. futimesat()函數(shù) Unix/Linux

oldolduname()函數(shù) Unix/Linux

1. oldolduname()函數(shù) Unix/Linux

sched_rr_get_interval()函數(shù) Unix/Linux

1. sched_rr_get_interval()函數(shù) Unix/Linux

oldstat()函數(shù) Unix/Linux

1. oldstat()函數(shù) Unix/Linux

pselect()函數(shù) Unix/Linux

1. pselect()函數(shù) Unix/Linux

close()函數(shù) Unix/Linux

1. close()函數(shù) Unix/Linux

add_key()函數(shù) Unix/Linux

1. add_key()函數(shù) Unix/Linux

clone()函數(shù) Unix/Linux

1. clone()函數(shù) Unix/Linux

rename()函數(shù) Unix/Linux

1. rename()函數(shù) Unix/Linux

msgop()函數(shù) Unix/Linux

1. msgop()函數(shù) Unix/Linux

getrlimit()函數(shù) Unix/Linux

1. getrlimit()函數(shù) Unix/Linux

linkat()函數(shù) Unix/Linux

1. linkat()函數(shù) Unix/Linux

ioprio_set()函數(shù) Unix/Linux

1. ioprio_set()函數(shù) Unix/Linux

insw()函數(shù) Unix/Linux

1. insw()函數(shù) Unix/Linux

munlock()函數(shù) Unix/Linux

1. munlock()函數(shù) Unix/Linux

getgid()函數(shù) Unix/Linux

1. getgid()函數(shù) Unix/Linux

chdir()函數(shù) Unix/Linux

1. chdir()函數(shù) Unix/Linux

rmdir()函數(shù) Unix/Linux

1. rmdir()函數(shù) Unix/Linux

ioctl()函數(shù) Unix/Linux

1. ioctl()函數(shù) Unix/Linux

lchown()函數(shù) Unix/Linux

1. lchown()函數(shù) Unix/Linux

execve()函數(shù) Unix/Linux

1. execve()函數(shù) Unix/Linux

epoll_wait()函數(shù) Unix/Linux

1. epoll_wait()函數(shù) Unix/Linux

fstatat()函數(shù) Unix/Linux

1. fstatat()函數(shù) Unix/Linux

truncate()函數(shù) Unix/Linux

1. truncate()函數(shù) Unix/Linux

lock()函數(shù) Unix/Linux

1. lock()函數(shù) Unix/Linux

outsb()函數(shù) Unix/Linux

1. outsb()函數(shù) Unix/Linux

chroot()函數(shù) Unix/Linux

1. chroot()函數(shù) Unix/Linux

kexec_load()函數(shù) Unix/Linux

1. kexec_load()函數(shù) Unix/Linux

afs_syscall()函數(shù) Unix/Linux

1. afs_syscall()函數(shù) Unix/Linux

dup2()函數(shù) Unix/Linux

1. dup2()函數(shù) Unix/Linux

_newselect()函數(shù) Unix/Linux

1. _newselect()函數(shù) Unix/Linux

inotify_rm_watch()函數(shù) Unix/Linux

1. inotify_rm_watch()函數(shù) Unix/Linux

recv()函數(shù) Unix/Linux

1. recv()函數(shù) Unix/Linux

msgsnd()函數(shù) Unix/Linux

1. msgsnd()函數(shù) Unix/Linux

getdtablesize()函數(shù) Unix/Linux

1. getdtablesize()函數(shù) Unix/Linux

ioperm()函數(shù) Unix/Linux

1. ioperm()函數(shù) Unix/Linux

munmap()函數(shù) Unix/Linux

1. munmap()函數(shù) Unix/Linux

getpriority()函數(shù) Unix/Linux

1. getpriority()函數(shù) Unix/Linux

sched_get_priority_min()函數(shù) Unix/Linux

1. sched_get_priority_min()函數(shù) Unix/Linux

outw_p()函數(shù) Unix/Linux

1. outw_p()函數(shù) Unix/Linux

kill()函數(shù) Unix/Linux

1. kill()函數(shù) Unix/Linux

lookup_dcookie()函數(shù) Unix/Linux

1. lookup_dcookie()函數(shù) Unix/Linux

accept()函數(shù) Unix/Linux

1. accept()函數(shù) Unix/Linux

obsolete()函數(shù) Unix/Linux

1. obsolete()函數(shù) Unix/Linux

pread()函數(shù) Unix/Linux

1. pread()函數(shù) Unix/Linux

getgroups()函數(shù) Unix/Linux

1. getgroups()函數(shù) Unix/Linux

personality()函數(shù) Unix/Linux

1. personality()函數(shù) Unix/Linux

recvfrom()函數(shù) Unix/Linux

1. recvfrom()函數(shù) Unix/Linux

putpmsg()函數(shù) Unix/Linux

1. putpmsg()函數(shù) Unix/Linux

getgroups()函數(shù) Unix/Linux

1. getgroups()函數(shù) Unix/Linux

remap_file_pages()函數(shù) Unix/Linux

1. remap_file_pages()函數(shù) Unix/Linux

request_key()函數(shù) Unix/Linux

1. request_key()函數(shù) Unix/Linux

mount()函數(shù) Unix/Linux

1. mount()函數(shù) Unix/Linux

sched_setscheduler()函數(shù) Unix/Linux

1. sched_setscheduler()函數(shù) Unix/Linux

mkdirat()函數(shù) Unix/Linux

1. mkdirat()函數(shù) Unix/Linux

nfsservctl()函數(shù) Unix/Linux

1. nfsservctl()函數(shù) Unix/Linux

getuid()函數(shù) Unix/Linux

1. getuid()函數(shù) Unix/Linux

prof()函數(shù) Unix/Linux

1. prof()函數(shù) Unix/Linux

exit_group函數(shù) Unix/Linux

1. exit_group函數(shù) Unix/Linux

io_cancel()函數(shù) Unix/Linux

1. io_cancel()函數(shù) Unix/Linux

mmap()函數(shù) Unix/Linux

1. mmap()函數(shù) Unix/Linux

mremap()函數(shù) Unix/Linux

1. mremap()函數(shù) Unix/Linux

getitimer()函數(shù) Unix/Linux

1. getitimer()函數(shù) Unix/Linux

unimplemented()函數(shù) Unix/Linux

1. unimplemented()函數(shù) Unix/Linux

read()函數(shù) Unix/Linux

1. read()函數(shù) Unix/Linux

inl()函數(shù) Unix/Linux

1. inl()函數(shù) Unix/Linux

posix_fadvise()函數(shù) Unix/Linux

1. posix_fadvise()函數(shù) Unix/Linux

open()函數(shù) Unix/Linux

1. open()函數(shù) Unix/Linux

listen()函數(shù) Unix/Linux

1. listen()函數(shù) Unix/Linux

io_destroy()函數(shù) Unix/Linux

1. io_destroy()函數(shù) Unix/Linux

acct()函數(shù) Unix/Linux

1. acct()函數(shù) Unix/Linux

fcntl()函數(shù) Unix/Linux

1. fcntl()函數(shù) Unix/Linux

recvmsg()函數(shù) Unix/Linux

1. recvmsg()函數(shù) Unix/Linux

statfs()函數(shù) Unix/Linux

1. statfs()函數(shù) Unix/Linux

oldlstat()函數(shù) Unix/Linux

1. oldlstat()函數(shù) Unix/Linux

outb()函數(shù) Unix/Linux

1. outb()函數(shù) Unix/Linux

getpagesize()函數(shù) Unix/Linux

1. getpagesize()函數(shù) Unix/Linux

sched_yield()函數(shù) Unix/Linux

1. sched_yield()函數(shù) Unix/Linux

outw()函數(shù) Unix/Linux

1. outw()函數(shù) Unix/Linux

inw_p()函數(shù) Unix/Linux

1. inw_p()函數(shù) Unix/Linux

setpgid()函數(shù) Unix/Linux

1. setpgid()函數(shù) Unix/Linux

quotactl()函數(shù) Unix/Linux

1. quotactl()函數(shù) Unix/Linux

prctl()函數(shù) Unix/Linux

1. prctl()函數(shù) Unix/Linux

fattach()函數(shù) Unix/Linux

1. fattach()函數(shù) Unix/Linux

readahead()函數(shù) Unix/Linux

1. readahead()函數(shù) Unix/Linux

msgget()函數(shù) Unix/Linux

1. msgget()函數(shù) Unix/Linux

gethostname()函數(shù) Unix/Linux

1. gethostname()函數(shù) Unix/Linux

semctl()函數(shù) Unix/Linux

1. semctl()函數(shù) Unix/Linux

munlockall()函數(shù) Unix/Linux

1. munlockall()函數(shù) Unix/Linux

iopl()函數(shù) Unix/Linux

1. iopl()函數(shù) Unix/Linux

fdetach()函數(shù) Unix/Linux

1. fdetach()函數(shù) Unix/Linux

getuid()函數(shù) Unix/Linux

1. getuid()函數(shù) Unix/Linux

gettid()函數(shù) Unix/Linux

1. gettid()函數(shù) Unix/Linux

pwrite()函數(shù) Unix/Linux

1. pwrite()函數(shù) Unix/Linux

isastream()函數(shù) Unix/Linux

1. isastream()函數(shù) Unix/Linux

get_thread_area()函數(shù) Unix/Linux

1. get_thread_area()函數(shù) Unix/Linux

mpx()函數(shù) Unix/Linux

1. mpx()函數(shù) Unix/Linux

io_getevents()函數(shù) Unix/Linux

1. io_getevents()函數(shù) Unix/Linux

lstat()函數(shù) Unix/Linux

1. lstat()函數(shù) Unix/Linux

readv()函數(shù) Unix/Linux

1. readv()函數(shù) Unix/Linux

exit()函數(shù) Unix/Linux

1. exit()函數(shù) Unix/Linux

inw()函數(shù) Unix/Linux

1. inw()函數(shù) Unix/Linux

fchmod()函數(shù) Unix/Linux

1. fchmod()函數(shù) Unix/Linux

mq_getsetattr()函數(shù) Unix/Linux

1. mq_getsetattr()函數(shù) Unix/Linux

get_robust_list()函數(shù) Unix/Linux

1. get_robust_list()函數(shù) Unix/Linux

_llseek()函數(shù) Unix/Linux

1. _llseek()函數(shù) Unix/Linux

gettimeofday()函數(shù) Unix/Linux

1. gettimeofday()函數(shù) Unix/Linux

nice()函數(shù) Unix/Linux

1. nice()函數(shù) Unix/Linux

security()函數(shù) Unix/Linux

1. security()函數(shù) Unix/Linux

sched_get_priority_max()函數(shù) Unix/Linux

1. sched_get_priority_max()函數(shù) Unix/Linux

outb_p()函數(shù) Unix/Linux

1. outb_p()函數(shù) Unix/Linux

intro()函數(shù) Unix/Linux

1. intro()函數(shù) Unix/Linux

alarm()函數(shù) Unix/Linux

1. alarm()函數(shù) Unix/Linux

putmsg()函數(shù) Unix/Linux

1. putmsg()函數(shù) Unix/Linux

fork()函數(shù) Unix/Linux

1. fork()函數(shù) Unix/Linux

getpgrp()函數(shù) Unix/Linux

1. getpgrp()函數(shù) Unix/Linux

link()函數(shù) Unix/Linux

1. link()函數(shù) Unix/Linux

getcwd()函數(shù) Unix/Linux

1. getcwd()函數(shù) Unix/Linux

insl()函數(shù) Unix/Linux

1. insl()函數(shù) Unix/Linux

getsockname()函數(shù) Unix/Linux

1. getsockname()函數(shù) Unix/Linux

dup()函數(shù) Unix/Linux

1. dup()函數(shù) Unix/Linux

connect()函數(shù) Unix/Linux

1. connect()函數(shù) Unix/Linux

select()函數(shù) Unix/Linux

1. select()函數(shù) Unix/Linux

futex()函數(shù) Unix/Linux

1. futex()函數(shù) Unix/Linux

outsw()函數(shù) Unix/Linux

1. outsw()函數(shù) Unix/Linux

query_module()函數(shù) Unix/Linux

1. query_module()函數(shù) Unix/Linux

reboot()函數(shù) Unix/Linux

1. reboot()函數(shù) Unix/Linux

create_module()函數(shù) Unix/Linux

1. create_module()函數(shù) Unix/Linux

adjtimex()函數(shù) Unix/Linux

1. adjtimex()函數(shù) Unix/Linux

mlock()函數(shù) Unix/Linux

1. mlock()函數(shù) Unix/Linux

statvfs()函數(shù) Unix/Linux

1. statvfs()函數(shù) Unix/Linux

gtty()函數(shù) Unix/Linux

1. gtty()函數(shù) Unix/Linux

epoll_create()函數(shù) Unix/Linux

1. epoll_create()函數(shù) Unix/Linux

bind()函數(shù) Unix/Linux

1. bind()函數(shù) Unix/Linux

inl_p()函數(shù) Unix/Linux

1. inl_p()函數(shù) Unix/Linux

select_tut()函數(shù) Unix/Linux

1. select_tut()函數(shù) Unix/Linux

mincore()函數(shù) Unix/Linux

1. mincore()函數(shù) Unix/Linux

getresuid()函數(shù) Unix/Linux

1. getresuid()函數(shù) Unix/Linux

getpmsg()函數(shù) Unix/Linux

1. getpmsg()函數(shù) Unix/Linux

getcontext()函數(shù) Unix/Linux

1. getcontext()函數(shù) Unix/Linux

killpg()函數(shù) Unix/Linux

1. killpg()函數(shù) Unix/Linux

olduname()函數(shù) Unix/Linux

1. olduname()函數(shù) Unix/Linux

openat()函數(shù) Unix/Linux

1. openat()函數(shù) Unix/Linux

pause()函數(shù) Unix/Linux

1. pause()函數(shù) Unix/Linux

alloc_hugepages()函數(shù) Unix/Linux

1. alloc_hugepages()函數(shù) Unix/Linux

ioctl_list()函數(shù) Unix/Linux

1. ioctl_list()函數(shù) Unix/Linux

readlinkat()函數(shù) Unix/Linux

1. readlinkat()函數(shù) Unix/Linux

mprotect()函數(shù) Unix/Linux

1. mprotect()函數(shù) Unix/Linux

getdomainname()函數(shù) Unix/Linux

1. getdomainname()函數(shù) Unix/Linux

readlink()函數(shù) Unix/Linux

1. readlink()函數(shù) Unix/Linux

madvise()函數(shù) Unix/Linux

1. madvise()函數(shù) Unix/Linux

bdflush()函數(shù) Unix/Linux

1. bdflush()函數(shù) Unix/Linux

ipc()函數(shù) Unix/Linux

1. ipc()函數(shù) Unix/Linux

ptrace()函數(shù) Unix/Linux

1. ptrace()函數(shù) Unix/Linux

getrusage()函數(shù) Unix/Linux

1. getrusage()函數(shù) Unix/Linux

msync()函數(shù) Unix/Linux

1. msync()函數(shù) Unix/Linux

faccessat()函數(shù) Unix/Linux

1. faccessat()函數(shù) Unix/Linux

modify_ldt()函數(shù) Unix/Linux

1. modify_ldt()函數(shù) Unix/Linux

get_kernel_syms()函數(shù) Unix/Linux

1. get_kernel_syms()函數(shù) Unix/Linux

getpid()函數(shù) Unix/Linux

1. getpid()函數(shù) Unix/Linux

fsync()函數(shù) Unix/Linux

1. fsync()函數(shù) Unix/Linux

msgctl()函數(shù) Unix/Linux

1. msgctl()函數(shù) Unix/Linux

break未實(shí)現(xiàn) Unix/Linux

1. break未實(shí)現(xiàn) Unix/Linux

sched_setparam()函數(shù) Unix/Linux

1. sched_setparam()函數(shù) Unix/Linux

fchown()函數(shù) Unix/Linux

1. fchown()函數(shù) Unix/Linux

cacheflush()函數(shù) Unix/Linux

1. cacheflush()函數(shù) Unix/Linux

fdatasync()函數(shù) Unix/Linux

1. fdatasync()函數(shù) Unix/Linux

flock()函數(shù) Unix/Linux

1. flock()函數(shù) Unix/Linux

pivot_root()函數(shù) Unix/Linux

1. pivot_root()函數(shù) Unix/Linux

inotify_init()函數(shù) Unix/Linux

1. inotify_init()函數(shù) Unix/Linux

fchmodat()函數(shù) Unix/Linux

1. fchmodat()函數(shù) Unix/Linux

keyctl()函數(shù) Unix/Linux

1. keyctl()函數(shù) Unix/Linux

llseek()函數(shù) Unix/Linux

1. llseek()函數(shù) Unix/Linux

outb()函數(shù) Unix/Linux

1. outb()函數(shù) Unix/Linux

pipe()函數(shù) Unix/Linux

1. pipe()函數(shù) Unix/Linux

io_submit()函數(shù) Unix/Linux

1. io_submit()函數(shù) Unix/Linux

ppoll()函數(shù) Unix/Linux

1. ppoll()函數(shù) Unix/Linux

multiplexer()函數(shù) Unix/Linux

1. multiplexer()函數(shù) Unix/Linux

access()函數(shù) Unix/Linux

1. access()函數(shù) Unix/Linux

sched_getparam()函數(shù) Unix/Linux

1. sched_getparam()函數(shù) Unix/Linux

chown()函數(shù) Unix/Linux

1. chown()函數(shù) Unix/Linux

readdir()函數(shù) Unix/Linux

1. readdir()函數(shù) Unix/Linux

inb_p()函數(shù) Unix/Linux

1. inb_p()函數(shù) Unix/Linux

outsl()函數(shù) Unix/Linux

1. outsl()函數(shù) Unix/Linux

nanosleep()函數(shù) Unix/Linux

1. nanosleep()函數(shù) Unix/Linux

alloc_hugepages()函數(shù) Unix/Linux

1. alloc_hugepages()函數(shù) Unix/Linux

sbrk()函數(shù) Unix/Linux

1. sbrk()函數(shù) Unix/Linux

move_pages()函數(shù) Unix/Linux

1. move_pages()函數(shù) Unix/Linux

fchdir()函數(shù) Unix/Linux

1. fchdir()函數(shù) Unix/Linux

renameat()函數(shù) Unix/Linux

1. renameat()函數(shù) Unix/Linux

getppid()函數(shù) Unix/Linux

1. getppid()函數(shù) Unix/Linux

getsid()函數(shù) Unix/Linux

1. getsid()函數(shù) Unix/Linux

oldfstat()函數(shù) Unix/Linux

1. oldfstat()函數(shù) Unix/Linux

lseek()函數(shù) Unix/Linux

1. lseek()函數(shù) Unix/Linux

stat()函數(shù) Unix/Linux

1. stat()函數(shù) Unix/Linux

path_resolution()函數(shù) Unix/Linux

1. path_resolution()函數(shù) Unix/Linux

getunwind()函數(shù) Unix/Linux

1. getunwind()函數(shù) Unix/Linux

getsockopt()函數(shù) Unix/Linux

1. getsockopt()函數(shù) Unix/Linux

mmap2()函數(shù) Unix/Linux

1. mmap2()函數(shù) Unix/Linux

getdents()函數(shù) Unix/Linux

1. getdents()函數(shù) Unix/Linux

fchownat()函數(shù) Unix/Linux

1. fchownat()函數(shù) Unix/Linux

mkdir()函數(shù) Unix/Linux

1. mkdir()函數(shù) Unix/Linux

perfmonctl()函數(shù) Unix/Linux

1. perfmonctl()函數(shù) Unix/Linux

open()函數(shù) Unix/Linux

1. open()函數(shù) Unix/Linux

idle()函數(shù) Unix/Linux

1. idle()函數(shù) Unix/Linux

poll()函數(shù) Unix/Linux

1. poll()函數(shù) Unix/Linux

brk()函數(shù) Unix/Linux

1. brk()函數(shù) Unix/Linux

sched_setaffinity()函數(shù) Unix/Linux

1. sched_setaffinity()函數(shù) Unix/Linux

mlockall()函數(shù) Unix/Linux

1. mlockall()函數(shù) Unix/Linux

adjtimex()函數(shù) Unix/Linux

名稱

adjtimex - 調(diào)內(nèi)核時(shí)鐘

內(nèi)容簡介

#include <sys/timex.h>
int adjtimex(struct timex *buf);

描述

Linux使用大衛(wèi)L. Mills的時(shí)鐘調(diào)整算法（參見RFC1305）。 adjtimex()系統(tǒng)調(diào)用讀取和任選設(shè)置該算法的調(diào)整參數(shù)。這需要一個(gè)指針的TIMEX結(jié)構(gòu)，更新內(nèi)核參數(shù)字段值，并返回相同的結(jié)構(gòu)與當(dāng)前的內(nèi)核值。這種結(jié)構(gòu)的聲明如下：

struct timex {
    int modes;           /* mode selector */
    long offset;         /* time offset (usec) */
    long freq;           /* frequency offset (scaled ppm) */
    long maxerror;       /* maximum error (usec) */
    long esterror;       /* estimated error (usec) */
    int status;          /* clock command/status */
    long constant;       /* pll time constant */
    long precision;      /* clock precision (usec) (read only) */
    long tolerance;      /* clock frequency tolerance (ppm)
                            (read only) */
    struct timeval time; /* current time (read only) */
    long tick;           /* usecs between clock ticks */
};

“modes ”字段確定的參數(shù)，如果有的話就設(shè)置。它可能包含一個(gè)按位或組合的零個(gè)或多個(gè)以下bits：

#define ADJ_OFFSET            0x0001 /* time offset */
#define ADJ_FREQUENCY         0x0002 /* frequency offset */
#define ADJ_MAXERROR          0x0004 /* maximum time error */
#define ADJ_ESTERROR          0x0008 /* estimated time error */
#define ADJ_STATUS            0x0010 /* clock status */
#define ADJ_TIMECONST         0x0020 /* pll time constant */
#define ADJ_TICK              0x4000 /* tick value */
#define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime() */

普通用戶限制到零值模式mode。只有超級用戶可以設(shè)置任何參數(shù)。

返回值

成功，adjtimex() 返回時(shí)鐘狀態(tài)：

#define TIME_OK   0 /* clock synchronized */
#define TIME_INS  1 /* insert leap second */
#define TIME_DEL  2 /* delete leap second */
#define TIME_OOP  3 /* leap second in progress */
#define TIME_WAIT 4 /* leap second has occurred */
#define TIME_BAD  5 /* clock not synchronized */

如果失敗，adjtimex（）返回-1，并設(shè)置errno。

錯(cuò)誤

標(biāo)簽	描述
EFAULT	buf does not point to writable memory.
EINVAL	An attempt is made to setbuf.offset to a value outside the range -131071 to +131071,or to set buf.status to a value other than those listed above,or to set buf.tick to a value outside the range 900000/HZ to 1100000/HZ, where HZ is the system timer interrupt frequency.
EPERM	buf.mode is non-zero and the caller does not have sufficient privilege.Under Linux the CAP_SYS_TIME capability is required.

遵循于

adjtimex() 是Linux特有的，并且不應(yīng)該被用在程序準(zhǔn)備移植. 查看adjtime（3）用于調(diào)整系統(tǒng)時(shí)鐘的方法，更輕便，但彈性較差。

另請參閱

settimeofday (2)

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