https://bugzilla.novell.com/show_bug.cgi?id=425001
Summary: MarshalNativeToManaged and CleanUpManagedData Not Called
When Using ICustomMarshaler
Product: Mono: Class Libraries
Version: 1.9
Platform: x86-64
OS/Version: Linux
Status: NEW
Severity: Normal
Priority: P5 - None
Component: System
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
QAContact: [email protected]
Found By: Customer
Created an attachment (id=238746)
--> (https://bugzilla.novell.com/attachment.cgi?id=238746)
Test case
This bug is based on trying to code a work-around to Bug 422564.
To replicate, use the attached testcase to link to a C Shared Object that
returns ANSI strings.
When run, watching the Debug trace output shows that the MarshalNativeToManaged
and CleanUpManagedData functions of ICustomMarshaler are not being called when
using the CustomMarshaler with the delegate.
Example trace is:
// P/Invoke starts
MarshalManagedToNative
Pointer value: 0x144665600
Allocation size: 513 bytes
CleanUpNativeData
// P/Invoke done
Tracing this using MS .NET 2.0 shows that the StringBuilder is correctly
populated in the MarshalNativeToManaged method. However, it seems that this
method is not being called at all in Mono, preventing use of the
CustomMarshaler to get any data back from the native code.
I would expect MarshalNativeToManaged to be called after
MarshalManagedToNative, and before CleanUpNativeData, and CleanUpManagedData
after CleanUpNativeData.
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