]> git.tdb.fi Git - libs/core.git/blobdiff - source/time/timezone.cpp
Move non-oneliner functions out of RefPtr class declaration
[libs/core.git] / source / time / timezone.cpp
index 3910c24bbf3a88bd615c1a8bc7ccfd1700c65719..76c3fb242463fe3f5f504c37e3f0a95a616d223c 100644 (file)
@@ -1,115 +1,9 @@
-/* $Id$
-
-This file is part of libmspcore
-Copyright © 2008-2009  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <cstdlib>
-#include <sstream>
-#include <iomanip>
-#ifdef WIN32
-#include <windows.h>
-#else
-#include <fcntl.h>
-#endif
-#include <msp/core/except.h>
-#include "timestamp.h"
+#include <msp/strings/format.h>
 #include "timezone.h"
-#include "units.h"
-#include "utils.h"
 
 using namespace std;
 
-namespace {
-
-using Msp::Time::TimeZone;
-
-#ifndef WIN32
-long get_long(char *&ptr)
-{
-       long result=0;
-       for(unsigned i=0; i<4; ++i)
-               result=(result<<8)+static_cast<unsigned char >(*ptr++);
-       return result;
-}
-#endif
-
-TimeZone get_local_timezone()
-{
-#ifdef WIN32
-       TIME_ZONE_INFORMATION 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;
-       if(dst==TIME_ZONE_ID_STANDARD)
-               offset+=tzinfo.StandardBias;
-       else if(dst==TIME_ZONE_ID_DAYLIGHT)
-               offset+=tzinfo.DaylightBias;
-
-       return TimeZone(offset);
-#else
-       int fd=open("/etc/localtime", O_RDONLY);
-       if(fd>=-1)
-       {
-               char hdr[44];
-               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 buf[size];
-                       len=read(fd, buf, size);
-                       if(len==size)
-                       {
-                               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;
-
-                               if(index>0)
-                                       index=ptr[index];
-                               ptr+=timecnt;
-
-                               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);
-                                               ++ptr;
-                                               abbrind=*ptr++;
-                                       }
-                                       else
-                                               ptr+=6;
-                               }
-
-                               name=ptr+abbrind;
-                       }
-               }
-               close(fd);
-
-               if(gmtoff!=-1)
-                       return TimeZone(-gmtoff/60, name);
-       }
-       return TimeZone();
-#endif
-}
-
-}
-
 namespace Msp {
 namespace Time {
 
@@ -117,25 +11,23 @@ TimeZone::TimeZone():
        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()
@@ -146,7 +38,7 @@ const TimeZone &TimeZone::utc()
 
 const TimeZone &TimeZone::local()
 {
-       static TimeZone tz=get_local_timezone();
+       static TimeZone tz = platform_get_local_timezone();
        return tz;
 }