* Copyright 2015, Axel Dörfler, axeld@pinc-software.de.
* Copyright 2004, Jérôme Duval, jerome.duval@free.fr.
* Copyright 2010, 2012, Oliver Tappe <zooey@hirschkaefer.de>
* Distributed under the terms of the MIT License.
*/
#include "InitRealTimeClockJob.h"
#include <stdio.h>
#include <File.h>
#include <FindDirectory.h>
#include <Message.h>
#include <TimeZone.h>
#include <syscalls.h>
using BSupportKit::BJob;
InitRealTimeClockJob::InitRealTimeClockJob()
:
BJob("init real time clock")
{
}
status_t
InitRealTimeClockJob::Execute()
{
BPath path;
status_t status = find_directory(B_USER_SETTINGS_DIRECTORY, &path);
if (status == B_OK) {
_SetRealTimeClockIsGMT(path);
_SetTimeZoneOffset(path);
}
return status;
}
void
InitRealTimeClockJob::_SetRealTimeClockIsGMT(BPath path) const
{
path.Append("RTC_time_settings");
BFile file;
status_t status = file.SetTo(path.Path(), B_READ_ONLY);
if (status != B_OK) {
fprintf(stderr, "Can't open RTC settings file\n");
return;
}
char buffer[10];
ssize_t bytesRead = file.Read(buffer, sizeof(buffer));
if (bytesRead < 0) {
fprintf(stderr, "Unable to read RTC settings file\n");
return;
}
bool isGMT = strncmp(buffer, "local", 5) != 0;
_kern_set_real_time_clock_is_gmt(isGMT);
printf("RTC stores %s time.\n", isGMT ? "GMT" : "local" );
}
void
InitRealTimeClockJob::_SetTimeZoneOffset(BPath path) const
{
path.Append("Time settings");
BFile file;
status_t status = file.SetTo(path.Path(), B_READ_ONLY);
if (status != B_OK) {
fprintf(stderr, "Can't open Time settings file\n");
return;
}
BMessage settings;
status = settings.Unflatten(&file);
if (status != B_OK) {
fprintf(stderr, "Unable to parse Time settings file\n");
return;
}
BString timeZoneID;
if (settings.FindString("timezone", &timeZoneID) != B_OK) {
fprintf(stderr, "No timezone found\n");
return;
}
int32 timeZoneOffset = BTimeZone(timeZoneID.String()).OffsetFromGMT();
_kern_set_timezone(timeZoneOffset, timeZoneID.String(),
timeZoneID.Length());
printf("timezone is %s, offset is %" B_PRId32 " seconds from GMT.\n",
timeZoneID.String(), timeZoneOffset);
}
