com.oracle.svm.core.posix.headers.linux

Class LinuxTime

java.lang.Object

com.oracle.svm.core.posix.headers.Time

com.oracle.svm.core.posix.headers.linux.LinuxTime

public class LinuxTime
extends Time

Definitions manually translated from the C header file sys/time.h.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	LinuxTime.itimerspec POSIX.1b structure for timer start values and intervals.
static interface	LinuxTime.timer_t
static interface	LinuxTime.timer_tPointer

Nested classes/interfaces inherited from class com.oracle.svm.core.posix.headers.Time

Time.itimerval, Time.timespec, Time.timeval, Time.timezone, Time.tm

Constructor Summary

Constructors

Constructor and Description
LinuxTime()

Method Summary

Modifier and Type	Method and Description
static int	clock_getcpuclockid(int pid, org.graalvm.nativeimage.c.type.CIntPointer clock_id) Return clock ID for CPU-time clock.
static int	clock_getres(int clock_id, Time.timespec res) Get resolution of clock CLOCK_ID.
static int	clock_gettime(int clock_id, Time.timespec tp) Get current value of clock CLOCK_ID and store it in TP.
static int	CLOCK_MONOTONIC() Monotonic system-wide clock.
static int	clock_nanosleep(int clock_id, int flags, Time.timespec req, Time.timespec rem) High-resolution sleep with the specified clock.
static int	CLOCK_PROCESS_CPUTIME_ID() High-resolution timer from the CPU.
static int	CLOCK_REALTIME() Identifier for system-wide realtime clock.
static int	clock_settime(int clock_id, Time.timespec tp) Set clock CLOCK_ID to value TP.
static int	CLOCK_THREAD_CPUTIME_ID() Thread-specific CPU-time clock.
static int	getdate_err() Set to one of the following values to indicate an error.
static int	getdate_r(org.graalvm.nativeimage.c.type.CCharPointer string, Time.tm resbufp) Since `getdate' is not reentrant because of the use of `getdate_err' and the static buffer to return the result in, we provide a thread-safe variant.
static Time.tm	getdate(org.graalvm.nativeimage.c.type.CCharPointer string) Parse the given string as a date specification and return a value representing the value.
static int	TIMER_ABSTIME() Flag to indicate time is absolute.
static int	timer_delete(LinuxTime.timer_t timerid) Delete timer TIMERID.
static int	timer_getoverrun(LinuxTime.timer_t timerid) Get expiration overrun for timer TIMERID.
static int	timer_gettime(LinuxTime.timer_t timerid, LinuxTime.itimerspec value) Get current value of timer TIMERID and store it in VALUE.
static int	timer_settime(LinuxTime.timer_t timerid, int flags, LinuxTime.itimerspec value, LinuxTime.itimerspec ovalue) Set timer TIMERID to VALUE, returning old value in OVALUE.
static int	timespec_get(Time.timespec ts, int base) Set TS to calendar time based in time base BASE.

Methods inherited from class com.oracle.svm.core.posix.headers.Time

adjtime, asctime_r, asctime, clock, CLOCKS_PER_SEC, ctime_r, ctime, difftime, futimes, futimesat, getitimer, gettimeofday, gmtime_r, gmtime, ITIMER_PROF, ITIMER_REAL, ITIMER_VIRTUAL, localtime_r, localtime, lutimes, mktime, nanosleep, setitimer, settimeofday, stime, strftime, strptime, time, utimes

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LinuxTime

public LinuxTime()

Method Detail

CLOCK_REALTIME

public static int CLOCK_REALTIME()

Identifier for system-wide realtime clock.

CLOCK_MONOTONIC

public static int CLOCK_MONOTONIC()

Monotonic system-wide clock.

CLOCK_PROCESS_CPUTIME_ID

public static int CLOCK_PROCESS_CPUTIME_ID()

High-resolution timer from the CPU.

CLOCK_THREAD_CPUTIME_ID

public static int CLOCK_THREAD_CPUTIME_ID()

Thread-specific CPU-time clock.

TIMER_ABSTIME

public static int TIMER_ABSTIME()

Flag to indicate time is absolute.

clock_getres

public static int clock_getres(int clock_id,
                               Time.timespec res)

Get resolution of clock CLOCK_ID.

clock_gettime

public static int clock_gettime(int clock_id,
                                Time.timespec tp)

Get current value of clock CLOCK_ID and store it in TP.

clock_settime

public static int clock_settime(int clock_id,
                                Time.timespec tp)

Set clock CLOCK_ID to value TP.

clock_nanosleep

public static int clock_nanosleep(int clock_id,
                                  int flags,
                                  Time.timespec req,
                                  Time.timespec rem)

High-resolution sleep with the specified clock.

clock_getcpuclockid

public static int clock_getcpuclockid(int pid,
                                      org.graalvm.nativeimage.c.type.CIntPointer clock_id)

Return clock ID for CPU-time clock.

timer_delete

public static int timer_delete(LinuxTime.timer_t timerid)

Delete timer TIMERID.

timer_settime

public static int timer_settime(LinuxTime.timer_t timerid,
                                int flags,
                                LinuxTime.itimerspec value,
                                LinuxTime.itimerspec ovalue)

Set timer TIMERID to VALUE, returning old value in OVALUE.

timer_gettime

public static int timer_gettime(LinuxTime.timer_t timerid,
                                LinuxTime.itimerspec value)

Get current value of timer TIMERID and store it in VALUE.

timer_getoverrun

public static int timer_getoverrun(LinuxTime.timer_t timerid)

Get expiration overrun for timer TIMERID.

timespec_get

public static int timespec_get(Time.timespec ts,
                               int base)

Set TS to calendar time based in time base BASE.

getdate_err

public static int getdate_err()

Set to one of the following values to indicate an error. 1 the DATEMSK environment variable is null or undefined, 2 the template file cannot be opened for reading, 3 failed to get file status information, 4 the template file is not a regular file, 5 an error is encountered while reading the template file, 6 memory allocation failed (not enough memory available), 7 there is no line in the template that matches the input, 8 invalid input specification Example: February 31 or a time is specified that can not be represented in a long (representing the time in seconds since 00:00:00 UTC, January 1, 1970)

getdate

public static Time.tm getdate(org.graalvm.nativeimage.c.type.CCharPointer string)

Parse the given string as a date specification and return a value representing the value. The templates from the file identified by the environment variable DATEMSK are used. In case of an error `getdate_err' is set.

getdate_r

public static int getdate_r(org.graalvm.nativeimage.c.type.CCharPointer string,
                            Time.tm resbufp)

Since `getdate' is not reentrant because of the use of `getdate_err' and the static buffer to return the result in, we provide a thread-safe variant. The functionality is the same. The result is returned in the buffer pointed to by RESBUFP and in case of an error the return value is != 0 with the same values as given above for `getdate_err'.