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adjtimex
Langue: ru
Version: 1997-07-30 (openSuse - 09/10/07)
Section: 2 (Appels système)
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adjtimex - ÔÏÎËÁÑ ÎÁÓÔÒÏÊËÁ ÞÁÓÏ× × ÑÄÒÅïâúïò
#include <sys/timex.h>int adjtimex(struct timex *buf);
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Linux ÉÓÐÏÌØÚÕÅÔ ÄÌÑ ÐÏÄÓÔÒÏÊËÉ ÞÁÓÏ× ÁÌÇÏÒÉÔÍ David L. Mills (ÓÍ. RFC 1305). óÉÓÔÅÍÎÙÊ ×ÙÚÏ× adjtimex ÞÉÔÁÅÔ É (ÎÅÏÂÑÚÁÔÅÌØÎÏ) ÕÓÔÁÎÁ×ÌÉ×ÁÅÔ ÐÁÒÁÍÅÔÒÙ ÐÏÄÓÔÒÏÊËÉ ÄÌÑ ÜÔÏÇÏ ÁÌÇÏÒÉÔÍÁ. ÷ ËÁÞÅÓÔ×Å ÁÒÇÕÍÅÎÔÁ ÉÓÐÏÌØÚÕÅÔÓÑ ÕËÁÚÁÔÅÌØ ÎÁ ÓÔÒÕËÔÕÒÕ timex , ÐÏ ÚÎÁÞÅÎÉÑÍ × ÐÏÌÑÈ ËÏÔÏÒÏÊ ÏÓÕÝÅÓÔ×ÑÅÔÓÑ ÏÂÎÏ×ÌÅÎÉÅ ÐÁÒÁÍÅÔÒÏ× ÑÄÒÁ É × ÜÔÏÊ ÖÅ ÓÔÒÕËÔÕÒÅ ÐÒÏÉÓÈÏÄÉÔ ×ÏÚ×ÒÁÔ ÔÅËÕÝÉÈ ÚÎÁÞÅÎÉÊ ÐÁÒÁÍÅÔÒÏ× ÑÄÒÁ. äÁÎÎÁÑ ÓÔÒÕËÔÕÒÁ ÏÐÉÓÁÎÁ ÔÁË:-
struct timex { int modes; /* ×ÙÂÏÒ ÒÅÖÉÍÁ */ long offset; /* ÓÍÅÝÅÎÉÅ ÐÏ ×ÒÅÍÅÎÉ (usec) */ long freq; /* ÞÁÓÔÏÔÁ ÓÍÅÝÅÎÉÑ (scaled ppm) */ long maxerror; /* ÍÁËÓÉÍÁÌØÎÁÑ ÏÛÉÂËÁ (usec) */ long esterror; /* ÏÖÉÄÁÅÍÁÑ ÏÛÉÂËÁ (usec) */ int status; /* ËÏÍÁÎÄÁ/ÓÏÓÔÏÑÎÉÅ ÄÌÑ ÞÁÓÏ× */ long constant; /* ×ÒÅÍÅÎÎÁÑ ËÏÎÓÔÁÎÔÁ pll */ long precision; /* ÔÏÞÎÏÓÔØ ÞÁÓÏ× (usec) (ÔÏÌØËÏ ÞÔÅÎÉÅ) */ long tolerance; /* clock frequency tolerance (ppm) (read only) */ struct timeval time; /* ÔÅËÕÝÅÅ ×ÒÅÍÑ (ÔÏÌØËÏ ÞÔÅÎÉÅ) */ long tick; /* usecs between clock ticks */ };
ðÏÌÅ modes ÏÐÒÅÄÅÌÑÅÔ ËÁËÉÅ ÐÁÒÁÍÅÔÒÙ, ÅÓÌÉ ÜÔÏ ÎÅÏÂÈÏÄÉÍÏ, ÕÓÔÁÎÁ×ÌÉ×ÁÀÔÓÑ. úÎÁÞÅÎÉÅ ÐÏÌÑ ÍÏÖÅÔ ÓÏÄÅÒÖÁÔØ ËÏÍÂÉÎÁÃÉÉ ÂÉÔÏ×ÙÈ ÍÁÓÏË, ÚÎÁÞÅÎÉÑ ËÏÔÏÒÙÈ ÓÌÅÄÕÀÝÉÅ:
-
#define ADJ_OFFSET 0x0001 /* ÓÍÅÝÅÎÉÅ ×ÒÅÍÅÎÉtime offset */ #define ADJ_FREQUENCY 0x0002 /* ÞÁÓÔÏÔÁ ÓÍÅÝÅÎÉÑ */ #define ADJ_MAXERROR 0x0004 /* ÍÁËÓÉÍÁÌØÎÁÑ ÏÛÉÂËÁ ×ÒÅÍÅÎÉ */ #define ADJ_ESTERROR 0x0008 /* ÏÖÉÄÁÅÍÁÑ ÏÛÉÂËÁ ×ÒÅÍÅÎÉ */ #define ADJ_STATUS 0x0010 /* ÓÏÓÔÏÑÎÉÅ ÞÁÓÏ× */ #define ADJ_TIMECONST 0x0020 /* ×ÒÅÍÅÎÎÁÑ ËÏÎÓÔÁÎÔÁ pll */ #define ADJ_TICK 0x4000 /* ÚÎÁÞÅÎÉÅ ÔÉËÁ */ #define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */
ïÂÙÞÎÙÅ ÐÏÌØÚÏ×ÁÔÅÌÉ ÍÏÇÕÔ ÐÉÓÁÔØ × mode. ÔÏÌØËÏ ÎÏÌØ. ôÏÌØËÏ ÓÕÐÅÒÐÏÌØÚÏ×ÁÔÅÌØ root ÍÏÖÅÔ ÕÓÔÁÎÁ×ÌÉ×ÁÔØ ÌÀÂÙÅ ÐÁÒÁÍÅÔÒÙ.
÷ïú÷òáýáåíïå úîáþåîéå
÷ ÓÌÕÞÁÅ ÕÓÐÅÈÁ, adjtimex ×ÏÚ×ÒÁÝÁÅÔ ÓÏÓÔÏÑÎÉÅ ÞÁÓÏ×:-
#define TIME_OK 0 /* ÞÁÓÙ ÓÉÎÈÒÏÎÉÚÉÒÏ×ÁÎÙ */ #define TIME_INS 1 /* ×ÓÔÁ×ÌÅÎÏ ÓÅËÕÎÄÎÙÊ ÐÒÙÖÏË */ #define TIME_DEL 2 /* ÕÄẠ́ΠÓÅËÕÎÄÎÙÊ ÐÒÙÖÏË */ #define TIME_OOP 3 /* ×ÙÐÏÌÎÑÅÔÓÑ ÓÅËÕÎÄÎÙÊ ÐÒÙÖÏË */ #define TIME_WAIT 4 /* ÓÅËÕÎÄÎÙÊ ÐÒÙÖÏË ÏÓÕÝÅÓÔ×̣Π*/ #define TIME_BAD 5 /* ÞÁÓÙ ÎÅ ÓÉÎÈÒÏÎÉÚÉÒÏ×ÁÎÙ */
÷ ÓÌÕÞÁÅ ÎÅÕÄÁÞÉ, adjtimex ×ÏÚ×ÒÁÝÁÅÔ -1 É ÕÓÔÁÎÁ×ÌÉ×ÁÅÔ errno.
ïûéâëé
- EFAULT
- buf ÎÅ Ñ×ÌÑÅÔÓÑ ÕËÁÚÁÔÅÌÅÍ ÎÁ ÄÏÓÔÕÐÎÕÀ ÄÌÑ ÚÁÐÉÓÉ ÏÂÌÁÓÔØ ÐÁÍÑÔÉ.
- EPERM
- buf.mode ÎÅ ÎÏÌØ, Á ÐÏÌØÚÏ×ÁÔÅÌØ ÎÅ Ñ×ÌÑÅÔÓÑ ÓÕÐÅÒÐÏÌØÚÏ×ÁÔÅÌÅÍ.
- EINVAL
- ðÏÐÙÔËÁ ÕÓÔÁÎÏ×ÉÔØ buf.offset × ÚÎÁÞÅÎÉÅ, ×ÙÈÏÄÑÝÅÅ ÚÁ ÄÉÁÐÁÚÏÎ ÏÔ -131071 ÄÏ +131071, ÉÌÉ ÕÓÔÁÎÏ×ÉÔØ buf.status × ÚÎÁÞÅÎÉÅ ÏÔÌÉÞÎÏÅ ÏÔ ÐÅÒÅÞÉÓÌÅÎÎÙÈ ×ÙÛÅ, ÉÌÉ ÕÓÔÁÎÏ×ÉÔØ buf.tick × ÚÎÁÞÅÎÉÅ ÚÁ ÐÒÅÄÅÌÁÍÉ ÄÉÁÐÁÚÏÎÁ ÏÔ 900000/HZ ÄÏ 1100000/HZ, ÇÄÅ HZ - ÜÔÏ ÞÁÓÔÏÔÁ ÐÒÅÒÙ×ÁÎÉÊ ÓÉÓÔÅÍÎÏÇÏ ÔÁÊÍÅÒÁ.
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adjtimex - ÜÔÏ ÓÐÅÃÉÆÉÞÎÙÊ ÄÌÑ Linux ×ÙÚÏ× É ÏÎ ÎÅ ÄÏÌÖÅÎ ÉÓÐÏÌØÚÏ×ÁÔØÓÑ × ÐÒÏÇÒÁÍÍÁÈ, ËÏÔÏÒÙÅ ÐÉÛÕÔØÓÑ ËÁË ÐÅÒÅÎÏÓÉÍÙÅ. óÕÝÅÓÔ×ÕÅÔ ÐÏÈÏÖÉÊ, ÎÏ ÂÏÌÅÅ ÏÂÝÉÊ ÄÌÑ ÒÁÚÎÙÈ Unix ÓÉÓÔÅÍ ×ÙÚÏ× adjtime × SVr4.óíïôòé ôáëöå
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