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fix DST setting properly in UtcTime (#133)

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Fixes #132

Signed-off-by: Bala.FA <bala@minio.io>
This commit is contained in:
Bala FA
2024-05-15 13:45:21 +05:30
committed by GitHub
parent dc82f4dc1a
commit 046a41ef15
2 changed files with 19 additions and 5 deletions
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1
include/miniocpp/utils.h
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@@ -120,6 +120,7 @@ class UtcTime {
static std::tm auxLocaltime(const std::time_t& time);
std::tm getBrokenDownTime() const { return auxLocaltime(secs_); }
static std::time_t toUtcSeconds(const std::time_t time);
public:
UtcTime() = default;

23
src/utils.cc
View File

@@ -333,20 +333,29 @@ std::tm UtcTime::auxLocaltime(const std::time_t& time) {
return result;
}
std::time_t UtcTime::toUtcSeconds(const std::time_t secs_local) {
std::tm result{};
#ifdef _WIN32
gmtime_s(&result, &secs_local);
#else
gmtime_r(&secs_local, &result);
#endif
result.tm_isdst = -1;
return std::mktime(&result);
}
UtcTime UtcTime::Now() {
auto usec_now = std::chrono::system_clock::now().time_since_epoch() /
std::chrono::microseconds(1);
auto secs_local = static_cast<time_t>(usec_now / 1000000);
auto secs_utc = std::mktime(std::gmtime(&secs_local));
return UtcTime(secs_utc, static_cast<long>(usec_now % 1000000));
return UtcTime(toUtcSeconds(static_cast<time_t>(usec_now / 1000000)),
static_cast<long>(usec_now % 1000000));
}
void UtcTime::ToLocalTime(std::tm& time) {
auto usec_now = std::chrono::system_clock::now().time_since_epoch() /
std::chrono::microseconds(1);
auto secs_local = static_cast<time_t>(usec_now / 1000000);
auto secs_utc = std::mktime(std::gmtime(&secs_local));
auto secs = secs_ + (secs_local - secs_utc);
auto secs = secs_ + (secs_local - toUtcSeconds(secs_local));
time = auxLocaltime(secs);
}
@@ -416,7 +425,11 @@ UtcTime UtcTime::FromISO8601UTC(const char* value) {
std::time_t secs = std::mktime(&t);
unsigned long ul = 0;
#ifdef _WIN32
static_cast<void>(sscanf_s(rv, ".%lu", &ul));
#else
static_cast<void>(sscanf(rv, ".%lu", &ul));
#endif
long usecs = (long)ul;
return UtcTime(secs, usecs);