*/
#include <cstdlib>
-#include <sstream>
-#include <iomanip>
#ifdef WIN32
#include <windows.h>
#else
#include <fcntl.h>
#endif
-#include <msp/core/except.h>
+#include <msp/strings/format.h>
+#include "../core/except.h"
#include "timestamp.h"
#include "timezone.h"
#include "units.h"
#ifndef WIN32
long get_long(char *&ptr)
{
- long result=0;
+ long result = 0;
for(unsigned i=0; i<4; ++i)
- result=(result<<8)+static_cast<unsigned char >(*ptr++);
+ result = (result<<8)+static_cast<unsigned char >(*ptr++);
return result;
}
#endif
{
#ifdef WIN32
TIME_ZONE_INFORMATION tzinfo;
- DWORD dst=GetTimeZoneInformation(&tzinfo);
+ DWORD dst = GetTimeZoneInformation(&tzinfo);
if(dst==TIME_ZONE_ID_INVALID)
throw Msp::SystemError("Failed to get time zone information", GetLastError());
- int offset=tzinfo.Bias;
+ int offset = tzinfo.Bias;
if(dst==TIME_ZONE_ID_STANDARD)
- offset+=tzinfo.StandardBias;
+ offset += tzinfo.StandardBias;
else if(dst==TIME_ZONE_ID_DAYLIGHT)
- offset+=tzinfo.DaylightBias;
+ offset += tzinfo.DaylightBias;
return TimeZone(offset);
#else
- int fd=open("/etc/localtime", O_RDONLY);
+ int fd = open("/etc/localtime", O_RDONLY);
if(fd>=-1)
{
char hdr[44];
- int len=read(fd, hdr, sizeof(hdr));
- long gmtoff=-1;
+ int len = read(fd, hdr, sizeof(hdr));
+ long gmtoff = -1;
string name;
if(len==44 && hdr[0]=='T' && hdr[1]=='Z' && hdr[2]=='i' && hdr[3]=='f')
{
- char *ptr=hdr+20;
- long isgmtcnt=get_long(ptr);
- long isstdcnt=get_long(ptr);
- long leapcnt=get_long(ptr);
- long timecnt=get_long(ptr);
- long typecnt=get_long(ptr);
- long charcnt=get_long(ptr);
- int size=timecnt*5+typecnt*6+isgmtcnt+isstdcnt+leapcnt*8+charcnt;
+ char *ptr = hdr+20;
+ long isgmtcnt = get_long(ptr);
+ long isstdcnt = get_long(ptr);
+ long leapcnt = get_long(ptr);
+ long timecnt = get_long(ptr);
+ long typecnt = get_long(ptr);
+ long charcnt = get_long(ptr);
+ int size = timecnt*5+typecnt*6+isgmtcnt+isstdcnt+leapcnt*8+charcnt;
char buf[size];
- len=read(fd, buf, size);
+ len = read(fd, buf, size);
if(len==size)
{
- ptr=buf;
- int index=-1;
- time_t cur_time=Msp::Time::now().to_unixtime();
+ ptr = buf;
+ int index = -1;
+ time_t cur_time = Msp::Time::now().to_unixtime();
for(int i=0; i<timecnt; ++i)
if(get_long(ptr)<=cur_time)
- index=i;
+ index = i;
if(index>0)
- index=ptr[index];
- ptr+=timecnt;
+ index = ptr[index];
+ ptr += timecnt;
- int abbrind=0;
+ int abbrind = 0;
for(int i=0; i<typecnt; ++i)
{
if((index>=0 && i==index) || (index<0 && !ptr[4] && gmtoff==-1))
{
- gmtoff=get_long(ptr);
+ gmtoff = get_long(ptr);
++ptr;
- abbrind=*ptr++;
+ abbrind = *ptr++;
}
else
- ptr+=6;
+ ptr += 6;
}
- name=ptr+abbrind;
+ name = ptr+abbrind;
}
}
close(fd);
if(gmtoff!=-1)
- return TimeZone(-gmtoff/60, name);
+ return TimeZone(gmtoff/60, name);
}
return TimeZone();
#endif
name("UTC")
{ }
-TimeZone::TimeZone(int minutes_west):
- offset(minutes_west*min)
+TimeZone::TimeZone(int minutes):
+ offset(minutes*min)
{
- if(minutes_west)
+ if(minutes)
{
- ostringstream ss;
- ss.fill('0');
- int m=abs(minutes_west);
- ss<<"UTC"<<(minutes_west<0 ? '-' : '+')<<m/60;
+ int m = abs(minutes);
+ name = format("UTC%c%d", (minutes<0 ? '-' : '+'), m/60);
if(m%60)
- ss<<':'<<setw(2)<<m%60;
+ name += format(":%02d", m%60);
}
else
- name="UTC";
+ name = "UTC";
}
-TimeZone::TimeZone(int minutes_west, const string &n):
+TimeZone::TimeZone(int minutes, const string &n):
name(n),
- offset(minutes_west*min)
+ offset(minutes*min)
{ }
const TimeZone &TimeZone::utc()
const TimeZone &TimeZone::local()
{
- static TimeZone tz=get_local_timezone();
+ static TimeZone tz = get_local_timezone();
return tz;
}