This is a simple wrapper around posix_spawn() that will help us simplify
a bunch of very verbose posix_spawn() invocations.
This first version only supports the simplest case: executing an
executable without passing arguments or doing anything fancy. More
features can be added to cover more cases. :^)
This switches tracking CPU usage to more accurately measure time in
user and kernel land using either the TSC or another time source.
This will also come in handy when implementing a tickless kernel mode.
As threads come and go, we can't simply account for how many time
slices the threads at any given point may have been using. We need to
also account for threads that have since disappeared. This means we
also need to track how many time slices we have expired globally.
However, because this doesn't account for context switches outside of
the system timer tick values may still be under-reported. To solve this
we will need to track more accurate time information on each context
switch.
This also fixes top's cpu usage calculation which was still based on
the number of context switches.
Fixes#6473
This will generate absolute paths lexically rather than through a call
to realpath. The motivation for this is to generate absolute paths for
non-existent files in unveil calls, as realpath will not work if the
file does not exist.
LibCore::Account::generate_passwd_file should follow
generate_shadow_file by conditionally checking for the username.
Previously, usermod's set_uid changes would not reflect in the updated
passwd file as m_uid had already been changed to the updated value.
macOS's C library is not a good neighbor and doesn't ensure that
the entry in struct hostent's h_addr_list are aligned properly for
a char const*. In Socket::connect, use ByteReader instead of a c-style
cast to work around this possible misalignment.
Unsigned options are used to return underflowed values for negative
inputs. With this change, we can verify that unsigned options only
accept unsigned inputs as arguments.
When the root path of a DirIterator ends with '/', we don't need to
add another '/' before appending the file name.
Fixes an issue where files found by Assistant had 2 leading slashes.
This changes the m_parts, m_dirname, m_basename, m_title and m_extension
member variables to StringViews onto the m_string String. It also
removes the m_is_absolute member in favour of computing if a path is
absolute in the is_absolute() getter. Due to this, the canonicalize()
method has been completely rewritten.
The parts() getter still returns a Vector<String>, although it is no
longer a const reference as m_parts is no longer a Vector<String>.
Rather, it is constructed from the StringViews in m_parts upon request.
The parts_view() getter has been added, which returns Vector<StringView>
const&. Most previous users of parts() have been changed to use
parts_view(), except where Strings are required.
Due to this change, it's is now no longer allow to create temporary
LexicalPath objects to call the dirname, basename, title, or extension
getters on them because the returned StringViews will point to possible
freed memory.
The LexicalPath instance methods dirname(), basename(), title() and
extension() will be changed to return StringView const& in a further
commit. Due to this, users creating temporary LexicalPath objects just
to call one of those getters will recieve a StringView const& pointing
to a possible freed buffer.
To avoid this, static methods for those APIs have been added, which will
return a String by value to avoid those problems. All cases where
temporary LexicalPath objects have been used as described above haven
been changed to use the static APIs.
Since this is always set to true on the non-default constructor and
subsequently never modified, it is somewhat pointless. Furthermore,
there are arguably no invalid relative paths.
Some objects need to perform tasks during construction that require
the object to be fully constructed, which can't be done in the
constructor. This allows postponing such tasks into a did_construct
method that will be called right after the object was fully
constructed.
DateTime can now be parsed from a string. Implements the same formatters
as strptime: https://linux.die.net/man/3/strptime (Well, some of them at
least).
IODeviceStreamReader isn't pulling its weight.
It's essentially a subset of InputFileStream with only one user
(WavLoader).
This refactors WavLoader to use InputFileStream instead.
When LibC/shadow.cpp parses shadow entries in getspent, it sets the
spwd member value to disabled (-1) if the value is empty. When
Core::Account::sync calls getspent to generate a new shadow file, it
would recieve the -1 values and write them in the shadow file. This
would cause the /etc/shadow file to be cluttered with disabled values
after any password change.
This patch checks if the spwd member value is disabled, and prints the
appropriate value to the shadow file.
Right now Socket::send() assumes that it can send everything in one
go. However, send() is allowed to do partial writes and while that
can't happen at the moment there's nothing that says this can't
happen in the future (like in the next commit).
This patch adds 13 new detectable file formats, which are as follows in
alphabetical order:
.blend, .isz, ext* filesystem, Lua bytecode, Matroska container, NES
ROM, .pdf, qcow image, .rtf, WebAssembly bytecode, Windows 3.1X/95
compressed archive and raw zlib stream
Some are a tad esoteric, but the more file types we detect, the more
useful this utility becomes! :^)
This functionality, while neat, isn't really something you need enabled
all the time. Let's make it opt-in instead. Pass MakeInspectable::Yes
to the Core::EventLoop constructor if you want your program to become
inspectable.
