This commit takes care of correctly starting [sudo] with XMRig as
a command argument. The frontend [restart_*] function is also
implemented. In XMRig's case, the threads will sleep [3/5 seconds]
before [starting/restarting] so that [sudo] has time to open its
STDIN. This prevents premature inputs and outputting the password
to the STDOUT.
Instead of cloning the entirety of the process's output, this
commit adds a sort of hierarchy of string buffers:
We need:
1. The full output for stat parsing (max 1 month/56m bytes)
2. GUI output to be lightweight (max 1-2 hours/1m bytes)
3. GUI output buffered so it's on a refresh tick of 1 second
------------------------------------------------------------------
So this is the new buffer hierarchy, from low to high level:
[Process] <-> [Watchdog] <-> [Helper] <-> [GUI]
------------------------------------------------------------------
Process: Writes to 2 buffers, a FULL (stores everything) and
a BUF which is exactly the same, except this gets [mem:take]n later
Stuff gets written immediately if there is output detected.
Watchdog: [std::mem::take]'s [Process]'s BUF for itself.
Both FULL and BUF output overflows are checked in this loop.
This is done on a slightly faster tick (900ms).
Helper: Appends watchdog's BUF to GUI's already existing [String]
on a 1-second tick.
GUI: Does nothing, only locks & reads.
------------------------------------------------------------------
This means Helper's buffer will be swapped out every second, meaning
it'll almost always be empty. Process's FULL output will be the
heaviest, but is only used for backend parsing. GUI will be in the
middle. This system of buffers makes it so not every thread has to
hold it's own FULL copy of the output, in particular the GUI thread
was starting to lag a little due to loading so much output.
Lots of stuff in this commit:
1. Implement [Start/Stop/Restart] and make it not possible for
the GUI to interact with that UI if [Helper] is doing stuff.
This prevents the obviously bad situation where [Helper] is in
the middle of spawning P2Pool, but the user is still allowed to
start it again, which would spawn another P2Pool. The main GUI
matches on the state and disables the appropriate UI so the
user can't do this.
2. Sync P2Pool's [Priv] and [Pub] output so that the GUI thread
is only rendering it once a second. All of Gupax also refreshes
at least once a second now as well.
3. Match the [ProcessState] with some colors in the GUI
4. GUI thread no longer directly starts/stops/restarts a process.
It will call a function in [Helper] that acts as a proxy.
5. The tokio [async_spawn_p2pool_watchdog()] function that was
a clone of the PTY version (but had async stuff) and all of the
related functions like the async STDOUT/STDERR reader is now
completely gone. It doesn't make sense to write the same code
twice, both [Simple] and [Advanced] will have a PTY, only
difference being the [Simple] UI won't have an input box.
6. P2Pool's exit code is now examined, either success or failure
7. Output was moved into it's own [Arc<Mutex>]. This allows for
more efficient writing/reading since before I had to lock all of
[Helper], which caused some noticable deadlocks in the GUI.
8. New [tab] field in [State<Gupax>], and GUI option to select
the tab that Gupax will start on.
This adds the basic wireframe of how processes will be handled.
The data/funcs in [command.rs] will be the API the main GUI thread
uses to talk to child processes. The process thread will loop
every 1 second to read/write the necessary data (stdout, stdin),
and handle signals from the GUI thread (kill, restart, etc).
This replaces the old mutable [TextEdit] with an immutable one
with a scroll area wrapped in a [Frame]. Passing a [&str] instead
of a [String] to [TextEdit] makes it auto-select only and not
mutable by the user. The background color is changed because the
immutable [TextEdit] has a hardcoded light gray color (same as the
general ui background).
A [must_resize] and [ctx.is_pointer_over_area()] is now used to
indicate we need a resizing. This makes it so when a user is
resizing the width of Gupax, the heavy [init_text_styles()] func
will only get called once when the user hovers over the GUI.
The button size is also now set in that function so it doesn't
have to be called in every separate tab.
Define a strict list [&str; 4] of valid path endings for p2pool/xmrig.
This prevents users (for some reason) inputting a path to some
other (maybe very important) file which Gupax would have completely
overridden with the update binary. Windows paths end with [.exe].
