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[loader] cut import overhead (#32)

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This commit is contained in:
Berk
2026-07-10 01:14:17 +03:00
committed by GitHub
parent db20387502
commit 9b9ca8f707
8 changed files with 591 additions and 265 deletions
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src/SharpEmu.Libs/Kernel/KernelEventQueueCompatExports.cs
+68 -1
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@@ -276,6 +276,22 @@ public static class KernelEventQueueCompatExports
var outCountAddress = ctx[CpuRegister.Rcx];
var timeoutAddress = ctx[CpuRegister.R8];
if (!IsValidEqueue(handle))
{
return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
}
if (eventsAddress == 0 || eventCapacity < 1)
{
return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
}
uint timeoutUsec = 0;
if (timeoutAddress != 0 && !TryReadUInt32(ctx, timeoutAddress, out timeoutUsec))
{
return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
}
var deliveredCount = DequeueEvents(ctx, handle, eventsAddress, eventCapacity);
if (outCountAddress != 0 && !TryWriteUInt32(ctx, outCountAddress, (uint)deliveredCount))
{
@@ -300,6 +316,41 @@ public static class KernelEventQueueCompatExports
return (int)OrbisGen2Result.ORBIS_GEN2_OK;
}
if (timeoutAddress != 0 && ctx.TryReadUInt64(timeoutAddress, out var timeoutRaw))
{
var timeoutMicros = timeoutRaw & 0xFFFF_FFFFUL;
var deadline = Environment.TickCount64 +
Math.Max(1L, (long)Math.Min(timeoutMicros / 1000, int.MaxValue));
lock (_eventQueueGate)
{
while (!HasPendingEvents(handle))
{
var remaining = deadline - Environment.TickCount64;
if (remaining <= 0)
{
break;
}
Monitor.Wait(_eventQueueGate, (int)Math.Min(remaining, 100));
}
}
deliveredCount = DequeueEvents(ctx, handle, eventsAddress, eventCapacity);
if (outCountAddress != 0 && !TryWriteUInt32(ctx, outCountAddress, (uint)deliveredCount))
{
return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
}
if (deliveredCount > 0)
{
TraceEventQueue(ctx, "wait-timed-deliver", handle);
return (int)OrbisGen2Result.ORBIS_GEN2_OK;
}
TraceEventQueue(ctx, "wait-timeout", handle);
return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_TIMED_OUT;
}
TraceEventQueue(ctx, "wait", handle);
return (int)OrbisGen2Result.ORBIS_GEN2_OK;
}
@@ -330,6 +381,7 @@ public static class KernelEventQueueCompatExports
queue.AddLast(queuedEvent);
queued = true;
Monitor.PulseAll(_eventQueueGate);
}
if (queued)
@@ -494,7 +546,9 @@ public static class KernelEventQueueCompatExports
return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
}
return (int)OrbisGen2Result.ORBIS_GEN2_OK;
return deliveredCount > 0
? (int)OrbisGen2Result.ORBIS_GEN2_OK
: (int)OrbisGen2Result.ORBIS_GEN2_ERROR_TIMED_OUT;
}
private static bool HasPendingEvents(ulong handle)
@@ -612,4 +666,17 @@ public static class KernelEventQueueCompatExports
BinaryPrimitives.WriteUInt32LittleEndian(buffer, value);
return ctx.Memory.TryWrite(address, buffer);
}
private static bool TryReadUInt32(CpuContext ctx, ulong address, out uint value)
{
Span<byte> buffer = stackalloc byte[sizeof(uint)];
if (!ctx.Memory.TryRead(address, buffer))
{
value = 0;
return false;
}
value = BinaryPrimitives.ReadUInt32LittleEndian(buffer);
return true;
}
}