mkxp-freebird/binding-mruby/mrb-ext/time.cpp

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/*
** time.cpp
**
** This file is part of mkxp.
**
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** Copyright (C) 2021 Amaryllis Kulla <amaryllis.kulla@protonmail.com>
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**
** mkxp is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 2 of the License, or
** (at your option) any later version.
**
** mkxp is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../binding-util.h"
#include <mruby/string.h>
#include <mruby/array.h>
#include <mruby/class.h>
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#include "time.h"
#include <sys/time.h>
struct TimeImpl
{
struct tm _tm;
struct timeval _tv;
};
extern const mrb_data_type TimeType =
{
"Time",
freeInstance<TimeImpl>
};
extern mrb_value
timeFromSecondsInt(mrb_state *mrb, time_t seconds)
{
TimeImpl *p = new TimeImpl;
p->_tv.tv_sec = seconds;
p->_tm = *localtime(&p->_tv.tv_sec);
mrb_value obj = wrapObject(mrb, p, TimeType);
return obj;
}
MRB_FUNCTION(timeAt)
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{
mrb_int seconds;
mrb_get_args(mrb, "i", &seconds);
return timeFromSecondsInt(mrb, seconds);
}
MRB_FUNCTION(timeNow)
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{
TimeImpl *p = new TimeImpl;
gettimeofday(&p->_tv, 0);
p->_tm = *localtime(&p->_tv.tv_sec);
mrb_value obj = wrapObject(mrb, p, TimeType);
return obj;
}
static mrb_value
secondsAdded(mrb_state *mrb, TimeImpl *p, mrb_int seconds)
{
TimeImpl *newP = new TimeImpl;
*newP = *p;
newP->_tv.tv_sec += seconds;
p->_tm = *localtime(&p->_tv.tv_sec);
return wrapObject(mrb, newP, TimeType);
}
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MRB_METHOD(timePlus)
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{
mrb_int seconds;
mrb_get_args(mrb, "i", &seconds);
TimeImpl *p = getPrivateData<TimeImpl>(mrb, self);
TimeImpl *newP = new TimeImpl;
*newP = *p;
newP->_tv.tv_sec += seconds;
p->_tm = *localtime(&p->_tv.tv_sec);
return wrapObject(mrb, newP, TimeType);
}
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MRB_METHOD(timeMinus)
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{
mrb_value minuent;
mrb_get_args(mrb, "o", &minuent);
TimeImpl *p = getPrivateData<TimeImpl>(mrb, self);
if (mrb_fixnum_p(minuent))
{
mrb_int seconds = mrb_fixnum(minuent);
return secondsAdded(mrb, p, -seconds);
}
else if (mrb_type(minuent) == MRB_TT_OBJECT)
{
TimeImpl *o = getPrivateDataCheck<TimeImpl>(mrb, minuent, TimeType);
return mrb_float_value(mrb, p->_tv.tv_sec - o->_tv.tv_sec);
}
else
{
mrb_raisef(mrb, E_TYPE_ERROR, "Expected Fixnum or Time, got %S",
mrb_str_new_cstr(mrb, mrb_class_name(mrb, mrb_class(mrb, minuent))));
}
return mrb_nil_value();
}
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MRB_METHOD(timeCompare)
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{
mrb_value cmpTo;
mrb_get_args(mrb, "o", &cmpTo);
mrb_int cmpToS = 0;
if (mrb_fixnum_p(cmpTo))
{
cmpToS = mrb_fixnum(cmpTo);
}
else if (mrb_type(cmpTo) == MRB_TT_OBJECT)
{
TimeImpl *cmpToP = getPrivateDataCheck<TimeImpl>(mrb, cmpTo, TimeType);
cmpToS = cmpToP->_tv.tv_sec;
}
else
{
mrb_raisef(mrb, E_TYPE_ERROR, "Expected Fixnum or Time, got %S",
mrb_str_new_cstr(mrb, mrb_class_name(mrb, mrb_class(mrb, cmpTo))));
}
TimeImpl *p = getPrivateData<TimeImpl>(mrb, self);
mrb_int selfS = p->_tv.tv_sec;
if (selfS < cmpToS)
return mrb_fixnum_value(-1);
else if (selfS == cmpToS)
return mrb_fixnum_value(0);
else
return mrb_fixnum_value(1);
}
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MRB_METHOD(timeStrftime)
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{
const char *format;
mrb_get_args(mrb, "z", &format);
TimeImpl *p = getPrivateData<TimeImpl>(mrb, self);
static char buffer[512];
strftime(buffer, sizeof(buffer), format, &p->_tm);
return mrb_str_new_cstr(mrb, buffer);
}
#define TIME_ATTR(attr) \
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MRB_METHOD(timeGet_##attr) \
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{ \
TimeImpl *p = getPrivateData<TimeImpl>(mrb, self); \
return mrb_fixnum_value(p->_tm.tm_##attr); \
}
TIME_ATTR(sec)
TIME_ATTR(min)
TIME_ATTR(hour)
TIME_ATTR(mday)
TIME_ATTR(mon)
TIME_ATTR(year)
TIME_ATTR(wday)
#define TIME_BIND_ATTR(attr) \
{ mrb_define_method(mrb, klass, #attr, timeGet_##attr, MRB_ARGS_NONE()); }
void
timeBindingInit(mrb_state *mrb)
{
RClass *klass = defineClass(mrb, "Time");
mrb_include_module(mrb, klass, mrb_module_get(mrb, "Comparable"));
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mrb_define_class_method(mrb, klass, "now", timeNow, MRB_ARGS_NONE());
mrb_define_class_method(mrb, klass, "at", timeAt, MRB_ARGS_REQ(1));
mrb_define_method(mrb, klass, "+", timePlus, MRB_ARGS_REQ(1));
mrb_define_method(mrb, klass, "-", timeMinus, MRB_ARGS_REQ(1));
mrb_define_method(mrb, klass, "<=>", timeCompare, MRB_ARGS_REQ(1));
mrb_define_method(mrb, klass, "strftime", timeStrftime, MRB_ARGS_REQ(1));
TIME_BIND_ATTR(sec);
TIME_BIND_ATTR(min);
TIME_BIND_ATTR(hour);
TIME_BIND_ATTR(mday);
TIME_BIND_ATTR(mon);
TIME_BIND_ATTR(year);
TIME_BIND_ATTR(wday);
}