The printf formatting mini-language actually allows you
to pass a '*' character in place of the fill width specification,
in which case it eats one of the passed in arguments and uses it
as width, so implement that.
You can now call GTableView::set_size_columns_to_fit_content(true) and
the table columns will grow to fit the content. They will never shrink,
only grow.
This means I can spend a lot less time fidgeting with column widths :^)
Once we've converted from an Ethernet frame to an IPv4 packet, we can
pass the IPv4Packet around instead of the EthernetFrameHeader.
Also add some more code to ignore invalid-looking packets.
This replaces Optional<T>(U&&) which clang-tidy complained may hide the
regular copy and move constructors. That's a good point, clang-tidy,
and I appreciate you pointing that out!
Remove the global hash tables and replace them with InlineLinkedLists.
This significantly reduces the kernel heap pressure from doing many
small mmap()'s.
Using a HashTable to track "all instances of Foo" is only useful if we
actually need to look up entries by some kind of index. And since they
are HashTable (not HashMap), the pointer *is* the index.
Since we have the pointer, we can just use it directly. Duh.
This increase sizeof(VMObject) by two pointers, but removes a global
table that had an entry for every VMObject, where the cost was higher.
It also avoids all the general hash tabling business when creating or
destroying VMObjects. Generally we should do more of this. :^)
This is a very simple version of the nc (netcat) command. It only
supports outgoing TCP connections, and has no options aside from the
target host and port.
This is comprised of five small changes:
* Keep a counter for tx/rx packets/bytes per TCP socket
* Keep a counter for tx/rx packets/bytes per network adapter
* Expose that data in /proc/net_tcp and /proc/netadapters
* Convert /proc/netadapters to JSON
* Fix up ifconfig to read the JSON from netadapters
When assigning properties, we were relying on the JSON serialization
code to wrap strings in double-quotes ("). JsonValue::to_string() does
not wrap string values, so what we want here is serialized(). :^)
This broke due to a change in JsonValue API. JsonValue::to_string() now
returns the value serialized to a string, which may become "undefined".
You kinda want JsonValue::as_string(), but that is only callable when
the JsonValue *is* a string. Thankfully there is now as_string_or(alt).
We were only doing this in Process::deallocate_region(), which meant
that kernel-only Regions never gave back their VM.
With this patch, we can start reusing freed-up address space! :^)
This is not perfect as it uses a lot of VM, but since the buffers are
supposed to be temporary it's not super terrible.
This could be improved by giving back the unused VM to the kernel's
RangeAllocator after finishing the buffer building.
Each Function is a heap allocation, so let's make an effort to avoid
doing that during scheduling. Because of header dependencies, I had to
put the runnables iteration helpers in Thread.h, which is a bit meh but
at least this cuts out all the kmalloc() traffic in pick_next().
