mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-30 00:31:14 +00:00
9201a06027
Before we start disabling acquisition of the big process lock for specific syscalls, make sure to document and assert that all the lock is held during all syscalls.
33 lines
924 B
C++
33 lines
924 B
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/StringView.h>
|
|
#include <Kernel/FileSystem/VirtualFileSystem.h>
|
|
#include <Kernel/Process.h>
|
|
|
|
namespace Kernel {
|
|
|
|
KResultOr<FlatPtr> Process::sys$utime(Userspace<const char*> user_path, size_t path_length, Userspace<const struct utimbuf*> user_buf)
|
|
{
|
|
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
|
|
REQUIRE_PROMISE(fattr);
|
|
auto path = get_syscall_path_argument(user_path, path_length);
|
|
if (path.is_error())
|
|
return path.error();
|
|
utimbuf buf;
|
|
if (user_buf) {
|
|
if (!copy_from_user(&buf, user_buf))
|
|
return EFAULT;
|
|
} else {
|
|
auto now = kgettimeofday().to_truncated_seconds();
|
|
// Not a bug!
|
|
buf = { now, now };
|
|
}
|
|
return VirtualFileSystem::the().utime(path.value()->view(), current_directory(), buf.actime, buf.modtime);
|
|
}
|
|
|
|
}
|