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Implement sys_time_get_timezone syscall

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Try to get system timezone automatically.
Attempt to address #10195.
This commit is contained in:
Nekotekina 2021-04-26 21:12:06 +03:00
parent 9609767c51
commit a049c6fd6b
1 changed files with 63 additions and 2 deletions
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65
rpcs3/Emu/Cell/lv2/sys_time.cpp
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@ -108,6 +108,8 @@ static int clock_gettime(int clk_id, struct timespec* tp)
#ifndef _WIN32
#include <sys/time.h>
static struct timespec start_time = []()
{
struct timespec ts;
@ -118,6 +120,8 @@ static struct timespec start_time = []()
std::terminate();
}
tzset();
return ts;
}();
@ -179,11 +183,68 @@ u64 get_guest_system_time()
// Functions
error_code sys_time_get_timezone(vm::ptr<s32> timezone, vm::ptr<s32> summertime)
{
sys_time.warning("sys_time_get_timezone(timezone=*0x%x, summertime=*0x%x)", timezone, summertime);
sys_time.notice("sys_time_get_timezone(timezone=*0x%x, summertime=*0x%x)", timezone, summertime);
*timezone = 180;
#ifdef _WIN32
TIME_ZONE_INFORMATION tz{};
switch (GetTimeZoneInformation(&tz))
{
case TIME_ZONE_ID_UNKNOWN:
{
*timezone = -tz.Bias;
*summertime = 0;
break;
}
case TIME_ZONE_ID_STANDARD:
{
*timezone = -tz.Bias;
*summertime = -tz.StandardBias;
if (tz.StandardBias)
{
sys_time.error("Unexpected timezone bias (base=%d, std=%d, daylight=%d)", tz.Bias, tz.StandardBias, tz.DaylightBias);
}
break;
}
case TIME_ZONE_ID_DAYLIGHT:
{
*timezone = -tz.Bias;
*summertime = -tz.DaylightBias;
break;
}
default:
{
ensure(0);
}
}
#elif __linux__
tzset();
*timezone = ::narrow<s32>(-::timezone / 60);
*summertime = 0;
if (::daylight)
{
struct tm test{};
ensure(&test == localtime_r(&start_time.tv_sec, &test));
// Check bounds [0,1]
if (test.tm_isdst & -2)
{
sys_time.error("No information for timezone DST bias (timezone=%.2fh, tm_gmtoff=%d)", -::timezone / 3600.0, test.tm_gmtoff);
}
else
{
*summertime = ::narrow<s32>(test.tm_isdst ? (test.tm_gmtoff + ::timezone) / 60 : 0);
}
}
#else
struct timeval _tv{};
struct timezone tz{};
ensure(gettimeofday(&_tv, &tz) == 0);
*timezone = -tz.tz_minuteswest;
*summertime = tz.tz_dsttime ? 60 : 0; // TODO
#endif
return CELL_OK;
}