| #include "time_stamp.h" |
| #include <cstdio> |
| #include <cstdarg> |
| #include <memory> |
| #include <string> |
|
|
| timestamp_t::timestamp_t(int s, int e) |
| : start(s), end(e) {} |
|
|
| timestamp_t& timestamp_t::operator=(const timestamp_t& a) { |
| if (this != &a) { |
| start = a.start; |
| end = a.end; |
| } |
| return *this; |
| } |
|
|
| bool timestamp_t::operator==(const timestamp_t& a) const { |
| return (start == a.start && end == a.end); |
| } |
|
|
| std::string timestamp_t::c_str() const { |
| return format("{start:%08d, end:%08d}", start, end); |
| } |
|
|
| std::string timestamp_t::format(const char* fmt, ...) const { |
| char buf[256]; |
| va_list args; |
| va_start(args, fmt); |
| const auto r = std::vsnprintf(buf, sizeof(buf), fmt, args); |
| va_end(args); |
|
|
| if (r < 0) |
| return {}; |
|
|
| const size_t len = r; |
| if (len < sizeof(buf)) |
| return std::string(buf, len); |
|
|
| #if __cplusplus >= 201703L |
| std::string s(len + 1, '\0'); |
| va_start(args, fmt); |
| std::vsnprintf(s.data(), len + 1, fmt, args); |
| va_end(args); |
| return s; |
| #else |
| std::unique_ptr<char[]> vbuf(new char[len + 1]); |
| va_start(args, fmt); |
| std::vsnprintf(vbuf.get(), len + 1, fmt, args); |
| va_end(args); |
| return std::string(vbuf.get(), len); |
| #endif |
| } |
