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This consolidates the lock+list combo into a SpinLockProtectedValue
and closes yet another unref() race. :^)
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We only ever use private futexes, so it doesn't make sense to carry
around all the complexity required for global (cross-process) futexes.
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The VMObject class now manages its own instance list (it was previously
a member of MemoryManager.) Removal from the list is done safely on the
last unref(), closing a race window in the previous implementation.
Note that VMObject::all_instances() now has its own lock instead of
using the global MM lock.
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Use a StringBuilder to generate a temporary string buffer with the
slave PTY names. (This works because StringBuilder has 128 bytes of
inline stack capacity before it does any heap allocations.)
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This simplifies the DevPtsFS implementation somewhat, as it no longer
requires SlavePTY to register itself with it, since it can now simply
use the list of SlavePTY instances.
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This class implements the emerging "ref-counted object that participates
in a lock-protected list that requires safe removal on unref()" pattern
as a base class that can be inherited in place of RefCounted<T>.
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Make File inherit from RefCountedBase and provide a custom unref()
implementation. This will allow subclasses that participate in lists to
remove themselves in a safe way when being destroyed.
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The audio applet uses the user configuration file "AudioApplet.ini" to
persist its settings, currently only whether the audio percentage should
be shown.
Since the audio server now may have specific settings when it starts,
the audio applet respects them by reading these same settings once when
it starts. Therefore, the audio server settings are not immediately
overridden by the audio applet defaults, as was the case before this
change.
A minor change was done to the way that the audio volume is calculated;
doubles are now used.
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AudioServer loads its settings, currently volume and mute state, from a
user config file "Audio.ini". Additionally, the current settings are
stored every ten seconds, if necessary. This allows for persistent audio
settings in between boots.
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Also recognize additional white space characters.
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Since 'let' is a valid variable name (in non-strict mode) let may not be
the start of a declaration but just an identifier.
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Disallow default parameter for rest parameters.
Disallow yield expressions as default values.
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And disallow some cases where we are in a generator context.
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This is a small step in the right direction although the amount of
different checks is becoming unsustainable. In the future we probably
want to have the current_scope handle all declarations.
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This is not entirely correct as really Object- and ArrayExpressions are
not allowed but that requires a bigger refactoring of for statement
parsing.
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Also disallow duplicated labels.
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When computing sample values from a linear predictor, the repeated
multiplication and addition can lead to very large values that may
overflow a 32-bit integer. This was never discovered with 16-bit FLAC
test files used to create and validate the first version of the FLAC
loader. However, 24-bit audio, especially with large LPC shifts, will
regularly exceed and overflow i32. Therefore, we now use 64 bits
temporarily. If the resulting value is too large for 32 bits, something
else has gone wrong :^)
This fixes playback noise on 24-bit FLACs.
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The FLAC samples are signed, so we need to rescale them not by their bit
depth, but by half of the bit depth. For example, a 24-bit sample
extends from -2^23 to 2^23-1, and therefore needs to be rescaled by 2^23
to conform to the [-1, 1] double sample range.
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This is more idiomatic :^)
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This was originally done in 7274037 and for some reason reverted in
740140a.
This avoids "multiple definitions" link errors and fixes the libuv port.
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We already include the inheritance for each property in Properties.json,
so made sense to use that instead of a list in StyleResolver.
Added `inherited: true` to a couple of properties to match the previous
code's behavior. One of those had a FIXME which I've moved to the JSON
file, which is hacky, but it works.
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With this change, a user can open .obj files from FileManager.
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Commands may be executed as a specific user by passing the user's UID to
the '-u' flag in pls.
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Note that this is not the same as ::at(index), which has a different
precondition ("allocated" vs "valid").
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There is no need for this, and it can cause deadlocks if ~Thread()
ends up doing something else that requires a lock (e.g ~Process())
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This is what VirtualFileSystem::m_lock was actually guarding, and
wrapping it in a ProtectedValue makes it so much more obvious how it
all works. :^)
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This adds the following cipher suites:
* DHE_RSA_WITH_AES_128_GCM_SHA256
* DHE_RSA_WITH_AES_256_GCM_SHA384
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