RuntimeException is very generic and might be thrown for other reasons apart from web request failures.
This is backwards compatible because InternetException is a descendent of RuntimeException. Additionally, getURL() and postURL() have intentionally been left untouched for backwards compatibility's sake.
- Added `Internet::getIP()`, `Internet::getURL()`, `Internet::postURL()`, and `Internet::simpleCurl()`.
- Deprecated the corresponding functions in `Utils`. Updating to the new functions is as simple as replacing `Utils` with `Internet`, since this doesn't break backwards compatibility.
The deprecations should be catered for by plugin developers. These deprecated redirects will be removed no later than 4.0.0.
This also has the happy side effect of removing a cyclic dependency between Config and Server. There's only the dependency on MainLogger left to get rid of now.
As discussed in #2297:
Honestly I don't see a fit purpose for async saving at all. It should either always be synchronous or always asynchronous, and at the user's own option. However, this isn't currently possible because Config doesn't enable you to get the serialized content without writing it to disk.
Consider the following code:
```php
for($i = 0, $size = $this->getServer()->getAsyncPool()->getSize(); $i < $size; ++$i){
$this->getServer()->getAsyncPool()->submitTask(new class extends AsyncTask{
public function onRun(){
sleep(5);
}
});
}
$config = $this->getConfig();
$config->set("steve", "hi");
$config->save(true);
$config->set("steve", "bye");
$config->save(false);
```
Output:
```yml
---
steve: hi
...
```
Expected output:
```yml
---
steve: bye
...
```
Additionally, if your configs are causing you performance issues when you're saving, it's a clear sign that
a) you're saving too much
b) you're abusing configs and should consider using a database.
Configs should be used for _simple_ data which does not change much. Configuration is such that the _user_ is expected to be able to modify it. As such, it should never be an issue to save synchronously.
In the future, something like ReactPHP may be introduced to allow proper async saving. When this happens, async saving would always be sequential but non blocking. Using threads for this makes no sense.
This commit contains quite a few breaking changes with respect to how AsyncTasks are handled. This is necessary to allow separation of the ServerScheduler and the AsyncPool, because in the future the ServerScheduler may be removed and instead there will be isolated per-plugin sync-task schedulers - but we cannot have every plugin with its own worker pool for memory usage reasons if nothing else.
The following things have changed:
- ServerScheduler: scheduleAsyncTask(), scheduleAsyncTaskToWorker(), getAsyncTaskPoolSize(), increaseAsyncTaskPoolSize() and similar methods have all been removed. Additionally the static \$WORKERS field has been removed.
- Server: added API method getAsyncPool(). This grants you direct access to the server's AsyncPool. Calls to getScheduler()->scheduleAsyncTask() and scheduleAsyncTaskToWorker() should be replaced with getAsyncPool()->submitTask() and submitTaskToWorker() respectively.
in some cases the main thread was trying to signal the server killer to stop before it was even started due to limited resources available for scheduling.
This cleans a lot of mess out of the bootstrap file, and also has the added bonus that threads which do not inherit functions can now get access to them by autoloading Utils.
This also removes a cyclic dependency between TextFormat and Terminal, meaning that TextFormat is now standalone without any external dependencies.
This is also an API break. Beware all ye who wander here, master = bleeding-edge!
Synchronize with the logger thread when logging an exception or killing. This forces the main thread to wait for disk write to complete when logging exceptions or killing the process.
Remove MCPE-network specific stuff from BinaryStream, added NetworkBinaryStream
This removes dependencies of BinaryStream on core code, while providing some consolidation of network handling code.
