diff options
Diffstat (limited to 'Libraries/LibCore/ProcessStatisticsReader.cpp')
| -rw-r--r-- | Libraries/LibCore/ProcessStatisticsReader.cpp | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/Libraries/LibCore/ProcessStatisticsReader.cpp b/Libraries/LibCore/ProcessStatisticsReader.cpp deleted file mode 100644 index 566053d3af..0000000000 --- a/Libraries/LibCore/ProcessStatisticsReader.cpp +++ /dev/null @@ -1,142 +0,0 @@ -/* - * 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/JsonValue.h> -#include <LibCore/File.h> -#include <LibCore/ProcessStatisticsReader.h> -#include <pwd.h> -#include <stdio.h> - -namespace Core { - -HashMap<uid_t, String> ProcessStatisticsReader::s_usernames; - -Optional<HashMap<pid_t, Core::ProcessStatistics>> ProcessStatisticsReader::get_all(RefPtr<Core::File>& proc_all_file) -{ - if (proc_all_file) { - if (!proc_all_file->seek(0, Core::File::SeekMode::SetPosition)) { - fprintf(stderr, "ProcessStatisticsReader: Failed to refresh /proc/all: %s\n", proc_all_file->error_string()); - return {}; - } - } else { - proc_all_file = Core::File::construct("/proc/all"); - if (!proc_all_file->open(Core::IODevice::ReadOnly)) { - fprintf(stderr, "ProcessStatisticsReader: Failed to open /proc/all: %s\n", proc_all_file->error_string()); - return {}; - } - } - - HashMap<pid_t, Core::ProcessStatistics> map; - - auto file_contents = proc_all_file->read_all(); - auto json = JsonValue::from_string(file_contents); - if (!json.has_value()) - return {}; - json.value().as_array().for_each([&](auto& value) { - const JsonObject& process_object = value.as_object(); - Core::ProcessStatistics process; - - // kernel data first - process.pid = process_object.get("pid").to_u32(); - process.pgid = process_object.get("pgid").to_u32(); - process.pgp = process_object.get("pgp").to_u32(); - process.sid = process_object.get("sid").to_u32(); - process.uid = process_object.get("uid").to_u32(); - process.gid = process_object.get("gid").to_u32(); - process.ppid = process_object.get("ppid").to_u32(); - process.nfds = process_object.get("nfds").to_u32(); - process.name = process_object.get("name").to_string(); - process.executable = process_object.get("executable").to_string(); - process.tty = process_object.get("tty").to_string(); - process.pledge = process_object.get("pledge").to_string(); - process.veil = process_object.get("veil").to_string(); - process.amount_virtual = process_object.get("amount_virtual").to_u32(); - process.amount_resident = process_object.get("amount_resident").to_u32(); - process.amount_shared = process_object.get("amount_shared").to_u32(); - process.amount_dirty_private = process_object.get("amount_dirty_private").to_u32(); - process.amount_clean_inode = process_object.get("amount_clean_inode").to_u32(); - process.amount_purgeable_volatile = process_object.get("amount_purgeable_volatile").to_u32(); - process.amount_purgeable_nonvolatile = process_object.get("amount_purgeable_nonvolatile").to_u32(); - - auto& thread_array = process_object.get_ptr("threads")->as_array(); - process.threads.ensure_capacity(thread_array.size()); - thread_array.for_each([&](auto& value) { - auto& thread_object = value.as_object(); - Core::ThreadStatistics thread; - thread.tid = thread_object.get("tid").to_u32(); - thread.times_scheduled = thread_object.get("times_scheduled").to_u32(); - thread.name = thread_object.get("name").to_string(); - thread.state = thread_object.get("state").to_string(); - thread.ticks_user = thread_object.get("ticks_user").to_u32(); - thread.ticks_kernel = thread_object.get("ticks_kernel").to_u32(); - thread.cpu = thread_object.get("cpu").to_u32(); - thread.priority = thread_object.get("priority").to_u32(); - thread.effective_priority = thread_object.get("effective_priority").to_u32(); - thread.syscall_count = thread_object.get("syscall_count").to_u32(); - thread.inode_faults = thread_object.get("inode_faults").to_u32(); - thread.zero_faults = thread_object.get("zero_faults").to_u32(); - thread.cow_faults = thread_object.get("cow_faults").to_u32(); - thread.unix_socket_read_bytes = thread_object.get("unix_socket_read_bytes").to_u32(); - thread.unix_socket_write_bytes = thread_object.get("unix_socket_write_bytes").to_u32(); - thread.ipv4_socket_read_bytes = thread_object.get("ipv4_socket_read_bytes").to_u32(); - thread.ipv4_socket_write_bytes = thread_object.get("ipv4_socket_write_bytes").to_u32(); - thread.file_read_bytes = thread_object.get("file_read_bytes").to_u32(); - thread.file_write_bytes = thread_object.get("file_write_bytes").to_u32(); - process.threads.append(move(thread)); - }); - - // and synthetic data last - process.username = username_from_uid(process.uid); - map.set(process.pid, process); - }); - - return map; -} - -Optional<HashMap<pid_t, Core::ProcessStatistics>> ProcessStatisticsReader::get_all() -{ - RefPtr<Core::File> proc_all_file; - return get_all(proc_all_file); -} - -String ProcessStatisticsReader::username_from_uid(uid_t uid) -{ - if (s_usernames.is_empty()) { - setpwent(); - while (auto* passwd = getpwent()) - s_usernames.set(passwd->pw_uid, passwd->pw_name); - endpwent(); - } - - auto it = s_usernames.find(uid); - if (it != s_usernames.end()) - return (*it).value; - return String::number(uid); -} -} |