Date.c File Reference

#include <assert.h>
#include "Date.h"
#include "Hash.h"

Go to the source code of this file.

Macros
#define	_Class   _Date

Functions
Class *	_Date (void)
static Order	compareTo (const Date *self, const Date *other)
static Date *	date (void)
static Date *	dateWithTimeSinceNow (const Time *interval)
static int	hash (const Object *self)
static Date *	init (Date *self)
static void	initialize (Class *clazz)
static Date *	initWithTime (Date *self, const Time *time)
static _Bool	isEqual (const Object *self, const Object *other)
static Time	timeSinceDate (const Date *self, const Date *date)
static Time	timeSinceNow (const Date *self)
static Time	timeSinceTime (const Date *self, const Time *time)

Macro Definition Documentation

_Class

#define _Class   _Date

Definition at line 29 of file Date.c.

Function Documentation

_Date()

Class * _Date

(

void

)

Definition at line 222 of file Date.c.

                   {
    static Class *clazz;
    static Once once;
 
    do_once(&once, {
        clazz = _initialize(&(const ClassDef) {
            .name = "Date",
            .superclass = _Object(),
            .instanceSize = sizeof(Date),
            .interfaceOffset = offsetof(Date, interface),
            .interfaceSize = sizeof(DateInterface),
            .initialize = initialize,
        });
    });
 
    return clazz;
}

compareTo()

static Order compareTo ( const Date *  self, const Date *  other  )

static

Definition at line 74 of file Date.c.

                                                            {
 
    if (other) {
        const long seconds = self->time.tv_sec - other->time.tv_sec;
        if (seconds == 0) {
 
            const long microseconds = self->time.tv_usec - other->time.tv_usec;
            if (microseconds == 0) {
                return OrderSame;
            }
 
            return microseconds < 0 ? OrderAscending : OrderDescending;
        }
 
        return seconds < 0 ? OrderAscending : OrderDescending;
    }
 
    return OrderAscending;
}

date()

static Date * date ( void  )

static

Definition at line 98 of file Date.c.

                        {
 
    return $$(Date, dateWithTimeSinceNow, NULL);
}

dateWithTimeSinceNow()

static Date * dateWithTimeSinceNow ( const Time *  interval )

static

Definition at line 107 of file Date.c.

                                                        {
 
    Date *date = $(alloc(Date), init);
    if (date) {
        if (interval) {
            date->time.tv_sec += interval->tv_sec;
            date->time.tv_usec += interval->tv_usec;
            if (date->time.tv_usec >= MSEC_PER_SEC) {
                date->time.tv_sec++;
                date->time.tv_usec -= MSEC_PER_SEC;
            } else if (date->time.tv_usec < 0) {
                date->time.tv_sec--;
                date->time.tv_usec += MSEC_PER_SEC;
            }
        }
    }
 
    return date;
}

hash()

static int hash ( const Object *  self )

static

See also

Object::hash(const Object *)

Definition at line 36 of file Date.c.

                                    {
 
    Date *this = (Date *) self;
 
    int hash = HASH_SEED;
 
    hash = HashForInteger(hash, this->time.tv_sec);
    hash = HashForInteger(hash, this->time.tv_usec);
 
    return hash;
}

init()

static Date * init ( Date *  self )

static

Definition at line 131 of file Date.c.

                              {
    return $(self, initWithTime, NULL);
}

initialize()

static void initialize ( Class *  clazz )

static

See also

Class::initialize(Class *)

Definition at line 203 of file Date.c.

                                     {
 
    ((ObjectInterface *) clazz->interface)->hash = hash;
    ((ObjectInterface *) clazz->interface)->isEqual = isEqual;
 
    ((DateInterface *) clazz->interface)->compareTo = compareTo;
    ((DateInterface *) clazz->interface)->date = date;
    ((DateInterface *) clazz->interface)->dateWithTimeSinceNow = dateWithTimeSinceNow;
    ((DateInterface *) clazz->interface)->init = init;
    ((DateInterface *) clazz->interface)->initWithTime = initWithTime;
    ((DateInterface *) clazz->interface)->timeSinceDate = timeSinceDate;
    ((DateInterface *) clazz->interface)->timeSinceNow = timeSinceNow;
    ((DateInterface *) clazz->interface)->timeSinceTime = timeSinceTime;
}

initWithTime()

static Date * initWithTime ( Date *  self, const Time *  time  )

static

Definition at line 139 of file Date.c.

                                                        {
 
    self = (Date *) super(Object, self, init);
    if (self) {
        if (time) {
            self->time = *time;
        } else {
            gettimeofday(&self->time, NULL);
        }
    }
 
    return self;
}

isEqual()

static _Bool isEqual ( const Object *  self, const Object *  other  )

static

See also

Object::isEqual(const Object *, const Object *)

Definition at line 51 of file Date.c.

                                                              {
 
    if (super(Object, self, isEqual, other)) {
        return true;
    }
 
    if (other && $(other, isKindOfClass, _Date())) {
 
        const Date *this = (Date *) self;
        const Date *that = (Date *) other;
 
        return $(this, compareTo, that) == OrderSame;
    }
 
    return false;
}

timeSinceDate()

static Time timeSinceDate ( const Date *  self, const Date *  date  )

static

Definition at line 157 of file Date.c.

                                                              {
 
    assert(date);
 
    return $(self, timeSinceTime, &date->time);
}

timeSinceNow()

static Time timeSinceNow ( const Date *  self )

static

Definition at line 168 of file Date.c.

                                           {
 
    Date *date = $$(Date, date);
 
    Time time = $(self, timeSinceDate, date);
 
    release(date);
 
    return time;
}

timeSinceTime()

static Time timeSinceTime ( const Date *  self, const Time *  time  )

static

Definition at line 183 of file Date.c.

                                                              {
 
    Time delta = {
        .tv_sec = self->time.tv_sec - time->tv_sec,
        .tv_usec = self->time.tv_usec - time->tv_usec
    };
 
    if (delta.tv_usec < 0) {
        delta.tv_sec--;
        delta.tv_usec += MSEC_PER_SEC;
    }
 
    return delta;
}