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dd: Print elapsed time and write speed after copying

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Karol Kosek 2023-05-13 16:33:15 +02:00 committed by Jelle Raaijmakers
parent 4020892945
commit c0be5bc070
Notes: sideshowbarker 2024-07-16 22:11:09 +09:00 
Author: https://github.com/krkk
Commit: https://github.com/SerenityOS/serenity/commit/c0be5bc070
Pull-request: https://github.com/SerenityOS/serenity/pull/18839
Reviewed-by: https://github.com/Panky-codes ✅
Reviewed-by: https://github.com/gmta ✅
1 changed files with 12 additions and 1 deletions
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13
Userland/Utilities/dd.cpp
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@ -7,8 +7,10 @@
#include <AK/CharacterTypes.h>
#include <AK/DeprecatedString.h>
#include <AK/NumberFormat.h>
#include <AK/Optional.h>
#include <AK/Vector.h>
#include <LibCore/ElapsedTimer.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <fcntl.h>
@ -43,6 +45,7 @@ struct {
size_t total_bytes_copied = 0;
size_t total_blocks_in = 0, partial_blocks_in = 0;
size_t total_blocks_out = 0, partial_blocks_out = 0;
Core::ElapsedTimer timer { true };
} statistics;
static void closing_statistics()
@ -52,7 +55,13 @@ static void closing_statistics()
warnln("{}+{} blocks in", statistics.total_blocks_in, statistics.partial_blocks_in);
warnln("{}+{} blocks out", statistics.total_blocks_out, statistics.partial_blocks_out);
if (statistics.status != Noxfer) {
warnln("{} bytes copied.", statistics.total_bytes_copied);
auto elapsed_time = statistics.timer.elapsed_time();
DeprecatedString copy_speed = "INF B/s";
if (!elapsed_time.is_zero()) {
auto speed = statistics.total_bytes_copied * 1000 / elapsed_time.to_milliseconds();
copy_speed = human_readable_quantity(speed, AK::HumanReadableBasedOn::Base2, "B/s"sv);
}
warnln("{} bytes copied ({}), {} ms, {}", statistics.total_bytes_copied, human_readable_size(statistics.total_bytes_copied), elapsed_time.to_milliseconds(), copy_speed);
}
}
@ -215,6 +224,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
exit(status);
}));
statistics.timer.start();
while (1) {
nread = read(input_fd, buffer, block_size);
if (nread < 0) {