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Handle C long size on Windows. by filmor · Pull Request #497 · pythonnet/pythonnet · GitHub

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Handle C long size on Windows. #497

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Merged
filmor merged 1 commit into from
Jun 26, 2017
Conversation 4 Commits 1 Checks 0 Files changed
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Handle C long size on Windows. #497

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3 changes: 2 additions & 1 deletion src/runtime/Python.Runtime.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -136,6 +136,7 @@
<Compile Include="runtime.cs" />
<Compile Include="typemanager.cs" />
<Compile Include="typemethod.cs" />
<Compile Include="Util.cs" />
</ItemGroup>
<ItemGroup Condition=" '$(PythonInteropFile)' != '' ">
<Compile Include="$(PythonInteropFile)" />
Expand Down Expand Up @@ -164,4 +165,4 @@
<Copy SourceFiles="$(TargetAssembly)" DestinationFolder="$(PythonBuildDir)" />
<!--Copy SourceFiles="$(TargetAssemblyPdb)" Condition="Exists('$(TargetAssemblyPdb)')" DestinationFolder="$(PythonBuildDir)" /-->
</Target>
</Project>
</Project>
33 changes: 33 additions & 0 deletions src/runtime/Util.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
using System;
using System.Runtime.InteropServices;

namespace Python.Runtime
{
internal class Util
{
internal static Int64 ReadCLong(IntPtr tp, int offset)
{
// On Windows, a C long is always 32 bits.
if (Runtime.IsWindows || Runtime.Is32Bit)
{
return Marshal.ReadInt32(tp, offset);
}
else
{
return Marshal.ReadInt64(tp, offset);
}
}

internal static void WriteCLong(IntPtr type, int offset, Int64 flags)
{
if (Runtime.IsWindows || Runtime.Is32Bit)
{
Marshal.WriteInt32(type, offset, (Int32)(flags & 0xffffffffL));
}
else
{
Marshal.WriteInt64(type, offset, flags);
}
}
}
}
4 changes: 2 additions & 2 deletions src/runtime/clrobject.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
using System;
using System;
using System.Runtime.InteropServices;

namespace Python.Runtime
Expand All @@ -11,7 +11,7 @@ internal CLRObject(object ob, IntPtr tp)
{
IntPtr py = Runtime.PyType_GenericAlloc(tp, 0);

var flags = (int)Marshal.ReadIntPtr(tp, TypeOffset.tp_flags);
long flags = Util.ReadCLong(tp, TypeOffset.tp_flags);
if ((flags & TypeFlags.Subclass) != 0)
{
IntPtr dict = Marshal.ReadIntPtr(py, ObjectOffset.DictOffset(tp));
Expand Down
6 changes: 3 additions & 3 deletions src/runtime/managedtype.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
using System;
using System;
using System.Runtime.InteropServices;

namespace Python.Runtime
Expand Down Expand Up @@ -28,7 +28,7 @@ internal static ManagedType GetManagedObject(IntPtr ob)
tp = ob;
}

var flags = (int)Marshal.ReadIntPtr(tp, TypeOffset.tp_flags);
var flags = Util.ReadCLong(tp, TypeOffset.tp_flags);
if ((flags & TypeFlags.Managed) != 0)
{
IntPtr op = tp == ob
Expand Down Expand Up @@ -63,7 +63,7 @@ internal static bool IsManagedType(IntPtr ob)
tp = ob;
}

var flags = (int)Marshal.ReadIntPtr(tp, TypeOffset.tp_flags);
var flags = Util.ReadCLong(tp, TypeOffset.tp_flags);
if ((flags & TypeFlags.Managed) != 0)
{
return true;
Expand Down
6 changes: 3 additions & 3 deletions src/runtime/metatype.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
using System;
using System;
using System.Runtime.InteropServices;

namespace Python.Runtime
Expand Down Expand Up @@ -105,7 +105,7 @@ public static IntPtr tp_new(IntPtr tp, IntPtr args, IntPtr kw)
flags |= TypeFlags.BaseType;
flags |= TypeFlags.Subclass;
flags |= TypeFlags.HaveGC;
Marshal.WriteIntPtr(type, TypeOffset.tp_flags, (IntPtr)flags);
Util.WriteCLong(type, TypeOffset.tp_flags, flags);

TypeManager.CopySlot(base_type, type, TypeOffset.tp_dealloc);

Expand Down Expand Up @@ -247,7 +247,7 @@ public static void tp_dealloc(IntPtr tp)
{
// Fix this when we dont cheat on the handle for subclasses!

var flags = (int)Marshal.ReadIntPtr(tp, TypeOffset.tp_flags);
var flags = Util.ReadCLong(tp, TypeOffset.tp_flags);
if ((flags & TypeFlags.Subclass) == 0)
{
IntPtr gc = Marshal.ReadIntPtr(tp, TypeOffset.magic());
Expand Down
8 changes: 6 additions & 2 deletions src/runtime/runtime.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -152,6 +152,10 @@ public class Runtime
internal static bool IsFinalizing;

internal static bool Is32Bit = IntPtr.Size == 4;

// .NET core: System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
internal static bool IsWindows = Environment.OSVersion.Platform == PlatformID.Win32NT;

internal static bool IsPython2 = pyversionnumber < 30;
internal static bool IsPython3 = pyversionnumber >= 30;

Expand Down Expand Up @@ -785,7 +789,7 @@ internal static bool PyObject_IsIterable(IntPtr pointer)
{
var ob_type = Marshal.ReadIntPtr(pointer, ObjectOffset.ob_type);
#if PYTHON2
long tp_flags = Marshal.ReadInt64(ob_type, TypeOffset.tp_flags);
long tp_flags = Util.ReadCLong(ob_type, TypeOffset.tp_flags);
if ((tp_flags & TypeFlags.HaveIter) == 0)
return false;
#endif
Expand Down Expand Up @@ -1442,7 +1446,7 @@ internal static bool PyIter_Check(IntPtr pointer)
{
var ob_type = Marshal.ReadIntPtr(pointer, ObjectOffset.ob_type);
#if PYTHON2
long tp_flags = Marshal.ReadInt64(ob_type, TypeOffset.tp_flags);
long tp_flags = Util.ReadCLong(ob_type, TypeOffset.tp_flags);
if ((tp_flags & TypeFlags.HaveIter) == 0)
return false;
#endif
Expand Down
10 changes: 5 additions & 5 deletions src/runtime/typemanager.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
using System;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
Expand Down Expand Up @@ -86,7 +86,7 @@ internal static IntPtr CreateType(Type impl)

int flags = TypeFlags.Default | TypeFlags.Managed |
TypeFlags.HeapType | TypeFlags.HaveGC;
Marshal.WriteIntPtr(type, TypeOffset.tp_flags, (IntPtr)flags);
Util.WriteCLong(type, TypeOffset.tp_flags, flags);

Runtime.PyType_Ready(type);

Expand Down Expand Up @@ -160,7 +160,7 @@ internal static IntPtr CreateType(ManagedType impl, Type clrType)
flags |= TypeFlags.HeapType;
flags |= TypeFlags.BaseType;
flags |= TypeFlags.HaveGC;
Marshal.WriteIntPtr(type, TypeOffset.tp_flags, (IntPtr)flags);
Util.WriteCLong(type, TypeOffset.tp_flags, flags);

// Leverage followup initialization from the Python runtime. Note
// that the type of the new type must PyType_Type at the time we
Expand Down Expand Up @@ -323,7 +323,7 @@ internal static IntPtr CreateMetaType(Type impl)
flags |= TypeFlags.Managed;
flags |= TypeFlags.HeapType;
flags |= TypeFlags.HaveGC;
Marshal.WriteIntPtr(type, TypeOffset.tp_flags, (IntPtr)flags);
Util.WriteCLong(type, TypeOffset.tp_flags, flags);

// We need space for 3 PyMethodDef structs, each of them
// 4 int-ptrs in size.
Expand Down Expand Up @@ -380,7 +380,7 @@ internal static IntPtr BasicSubType(string name, IntPtr base_, Type impl)
flags |= TypeFlags.Managed;
flags |= TypeFlags.HeapType;
flags |= TypeFlags.HaveGC;
Marshal.WriteIntPtr(type, TypeOffset.tp_flags, (IntPtr)flags);
Util.WriteCLong(type, TypeOffset.tp_flags, flags);

CopySlot(base_, type, TypeOffset.tp_traverse);
CopySlot(base_, type, TypeOffset.tp_clear);
Expand Down
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