63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
#include <mbgl/util/chrono.hpp>
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#include <parsedate/parsedate.hpp>
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#include <cstdio>
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#include <ctime>
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#if defined(_WIN32)
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#define _gmtime(t, i) gmtime_s(i, t)
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#else
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#define _gmtime(t, i) gmtime_r(t, i)
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#endif
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namespace mbgl {
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namespace util {
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static const char *week[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
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static const char *months[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
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std::string rfc1123(Timestamp timestamp) {
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std::time_t time = std::chrono::system_clock::to_time_t(timestamp);
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std::tm info;
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_gmtime(&time, &info);
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// Buffer size 30 is OK assuming the year has 4 digits. However, In theory,
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// it might have more digits. Under gcc 8.3.0 with -Os optimization flag,
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// there is compiler warning complaining about the buffer size might be too
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// small. Inceasing the buffer to 32 fixes the warning.
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char buffer[32];
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snprintf(buffer,
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32,
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"%s, %02d %s %4d %02d:%02d:%02d GMT",
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week[info.tm_wday],
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info.tm_mday,
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months[info.tm_mon],
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1900 + info.tm_year,
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info.tm_hour,
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info.tm_min,
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info.tm_sec);
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return buffer;
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}
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std::string iso8601(Timestamp timestamp) {
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std::time_t time = std::chrono::system_clock::to_time_t(timestamp);
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std::tm info;
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_gmtime(&time, &info);
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char buffer[30];
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std::strftime(buffer, sizeof(buffer), "%F %T", &info);
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return buffer;
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}
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Timestamp parseTimestamp(const char *timestamp) {
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return std::chrono::time_point_cast<Seconds>(std::chrono::system_clock::from_time_t(parse_date(timestamp)));
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}
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Timestamp parseTimestamp(const int32_t timestamp) {
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return std::chrono::time_point_cast<Seconds>(std::chrono::system_clock::from_time_t(timestamp));
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}
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} // namespace util
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} // namespace mbgl
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