mirror of
https://github.com/SerenityOS/serenity.git
synced 2025-01-24 02:12:09 -05:00
5d180d1f99
(...and ASSERT_NOT_REACHED => VERIFY_NOT_REACHED) Since all of these checks are done in release builds as well, let's rename them to VERIFY to prevent confusion, as everyone is used to assertions being compiled out in release. We can introduce a new ASSERT macro that is specifically for debug checks, but I'm doing this wholesale conversion first since we've accumulated thousands of these already, and it's not immediately obvious which ones are suitable for ASSERT.
103 lines
4.1 KiB
C++
103 lines
4.1 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <AK/ByteBuffer.h>
|
|
#include <AK/JsonArray.h>
|
|
#include <AK/JsonObject.h>
|
|
#include <AK/NumberFormat.h>
|
|
#include <AK/String.h>
|
|
#include <AK/Vector.h>
|
|
#include <LibCore/ArgsParser.h>
|
|
#include <LibCore/File.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
static bool flag_human_readable = false;
|
|
|
|
struct FileSystem {
|
|
String fs;
|
|
size_t total_block_count { 0 };
|
|
size_t free_block_count { 0 };
|
|
size_t total_inode_count { 0 };
|
|
size_t free_inode_count { 0 };
|
|
size_t block_size { 0 };
|
|
String mount_point;
|
|
};
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
Core::ArgsParser args_parser;
|
|
args_parser.set_general_help("Display free disk space of each partition.");
|
|
args_parser.add_option(flag_human_readable, "Print human-readable sizes", "human-readable", 'h');
|
|
args_parser.parse(argc, argv);
|
|
|
|
auto file = Core::File::construct("/proc/df");
|
|
if (!file->open(Core::IODevice::ReadOnly)) {
|
|
fprintf(stderr, "Failed to open /proc/df: %s\n", file->error_string());
|
|
return 1;
|
|
}
|
|
|
|
if (flag_human_readable) {
|
|
printf("Filesystem Size Used Available Mount point\n");
|
|
} else {
|
|
printf("Filesystem Blocks Used Available Mount point\n");
|
|
}
|
|
|
|
auto file_contents = file->read_all();
|
|
auto json_result = JsonValue::from_string(file_contents);
|
|
VERIFY(json_result.has_value());
|
|
auto json = json_result.value().as_array();
|
|
json.for_each([](auto& value) {
|
|
auto fs_object = value.as_object();
|
|
auto fs = fs_object.get("class_name").to_string();
|
|
auto total_block_count = fs_object.get("total_block_count").to_u32();
|
|
auto free_block_count = fs_object.get("free_block_count").to_u32();
|
|
[[maybe_unused]] auto total_inode_count = fs_object.get("total_inode_count").to_u32();
|
|
[[maybe_unused]] auto free_inode_count = fs_object.get("free_inode_count").to_u32();
|
|
auto block_size = fs_object.get("block_size").to_u32();
|
|
auto mount_point = fs_object.get("mount_point").to_string();
|
|
|
|
printf("%-10s", fs.characters());
|
|
|
|
if (flag_human_readable) {
|
|
printf("%10s ", human_readable_size(total_block_count * block_size).characters());
|
|
printf("%10s ", human_readable_size((total_block_count - free_block_count) * block_size).characters());
|
|
printf("%10s ", human_readable_size(free_block_count * block_size).characters());
|
|
} else {
|
|
printf("%10u ", total_block_count);
|
|
printf("%10u ", total_block_count - free_block_count);
|
|
printf("%10u ", free_block_count);
|
|
}
|
|
|
|
printf("%s", mount_point.characters());
|
|
printf("\n");
|
|
});
|
|
|
|
return 0;
|
|
}
|