diff options
Diffstat (limited to 'src/common/util.cpp')
| -rw-r--r-- | src/common/util.cpp | 44 |
1 files changed, 40 insertions, 4 deletions
diff --git a/src/common/util.cpp b/src/common/util.cpp index 80b8a9e81..3388974ce 100644 --- a/src/common/util.cpp +++ b/src/common/util.cpp @@ -80,6 +80,7 @@ using namespace epee; #include <boost/filesystem.hpp> #include <boost/algorithm/string.hpp> #include <boost/asio.hpp> +#include <boost/format.hpp> #include <openssl/sha.h> #undef MONERO_DEFAULT_LOG_CATEGORY @@ -640,16 +641,16 @@ std::string get_nix_version_display_string() return res; } - std::error_code replace_file(const std::string& replacement_name, const std::string& replaced_name) + std::error_code replace_file(const std::string& old_name, const std::string& new_name) { int code; #if defined(WIN32) // Maximizing chances for success std::wstring wide_replacement_name; - try { wide_replacement_name = string_tools::utf8_to_utf16(replacement_name); } + try { wide_replacement_name = string_tools::utf8_to_utf16(old_name); } catch (...) { return std::error_code(GetLastError(), std::system_category()); } std::wstring wide_replaced_name; - try { wide_replaced_name = string_tools::utf8_to_utf16(replaced_name); } + try { wide_replaced_name = string_tools::utf8_to_utf16(new_name); } catch (...) { return std::error_code(GetLastError(), std::system_category()); } DWORD attributes = ::GetFileAttributesW(wide_replaced_name.c_str()); @@ -661,7 +662,7 @@ std::string get_nix_version_display_string() bool ok = 0 != ::MoveFileExW(wide_replacement_name.c_str(), wide_replaced_name.c_str(), MOVEFILE_REPLACE_EXISTING); code = ok ? 0 : static_cast<int>(::GetLastError()); #else - bool ok = 0 == std::rename(replacement_name.c_str(), replaced_name.c_str()); + bool ok = 0 == std::rename(old_name.c_str(), new_name.c_str()); code = ok ? 0 : errno; #endif return std::error_code(code, std::system_category()); @@ -1063,4 +1064,39 @@ std::string get_nix_version_display_string() strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", &tm); return std::string(buffer); } + + std::string get_human_readable_bytes(uint64_t bytes) + { + // Use 1024 for "kilo", 1024*1024 for "mega" and so on instead of the more modern and standard-conforming + // 1000, 1000*1000 and so on, to be consistent with other Monero code that also uses base 2 units + struct byte_map + { + const char* const format; + const std::uint64_t bytes; + }; + + static constexpr const byte_map sizes[] = + { + {"%.0f B", 1024}, + {"%.2f KB", 1024 * 1024}, + {"%.2f MB", std::uint64_t(1024) * 1024 * 1024}, + {"%.2f GB", std::uint64_t(1024) * 1024 * 1024 * 1024}, + {"%.2f TB", std::uint64_t(1024) * 1024 * 1024 * 1024 * 1024} + }; + + struct bytes_less + { + bool operator()(const byte_map& lhs, const byte_map& rhs) const noexcept + { + return lhs.bytes < rhs.bytes; + } + }; + + const auto size = std::upper_bound( + std::begin(sizes), std::end(sizes) - 1, byte_map{"", bytes}, bytes_less{} + ); + const std::uint64_t divisor = size->bytes / 1024; + return (boost::format(size->format) % (double(bytes) / divisor)).str(); + } + } |