Re: [Mono-devel-list] Limiting Memory Allocation
On Thu, 2005-04-14 at 23:50 +0100, Jim Purbrick wrote: I'm currently working on embeding Mono in a virtual world to support user scripting and would like to limit the ammount of memory each script object can allocate. I'd like to be able to intercept each heap allocation and decide whether to allow it on a per-script (object) basis. Is this possible? What's the best approach? It is quite possible to intercept each allocation with our profiling api. However, you can't disallow an allocation. I guess you could hack the runtime to allow you to throw an OOM exception. -- Ben ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-devel-list] Need help to enhance oracle datetime parameter support...
Hi,
I want to enhance oracle datetime parameter support. Today,
oracledatetime
parameter is sended as a string to the oracle server... It's not the way that
MS.NET does...
MS.NET send the datetime in a byte array. This method don't depend on the
NLS_DATE_FORMAT parameter.
I think it would be better if mono use this method.
There's a OCI method to do that : OCIDateTimeToArray
So i've imported OCIDateTimeToArray and OCIDateTimeFromText in OCICalls.cs :
internal static int OCIDateTimeToArray (IntPtr hndl,
IntPtr errhp, IntPtr datetime, IntPtr interval, byte[]
outarray, [MarshalAs
(UnmanagedType.U4)] out int length, uint fsprec)
{
return
OciNativeCalls.OCIDateTimeToArray(hndl,errhp,datetime,interval,outarray, out
length,fsprec);
}
internal static int OCIDateTimeFromText (IntPtr hndl,
IntPtr errhp, [In][Out] byte[] date_str, uint
dstr_length,
[In][Out] byte[] fmt, uint fmt_length,
[In][Out] byte[] lang_name,uint lang_length, IntPtr
datetime)
{
return
OciNativeCalls.OCIDateTimeFromText(hndl,errhp,date_str,dstr_length,fmt,fmt_length,lang_name,lang_length,datetime);
}
We must :
-create a OCIDateTime structure with the sDate String (with
OCIDateTimeFromText)
-convert this OCIDateTime structure to a byte array with (OCIDateTimeToArray)
but i don't know how to allocate a OCIDateTime Structure in managed code...
Could you help me to implement that
Hubert FONGARNAND
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[Mono-devel-list] Unions in C#, and the Bug# 58798 in GDA
I found that Gtk# use a series of perl script as well as C# program called CodeGenerator, to auto-generate C# code from the sources. In the case of Gda#, theres a definition of a fundamental type called GdaValue, wich in his definition has a union (like in GValue struct), but the parser and CodeGenerator, don't have support to generate a C# representative of a union. You know, in C# doesn't exist unions, but you can use the FieldOffset attribute at cero, to have a in memory representation of a union. The actual definition of GdaValue and correct code representation in C# can be found the report and comments of the bug# 58798. The the parser (a perl script called gapi-parser and the sub scripts, specialy the api2xml) need generate a correcto XML file representation for a union, and need be modified the C# code for CodeGenerator to work around. I'll try to help in any form, but I'm not a expert in perl or C#; but I think it's very important to have Gda# working in Mono. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-devel-list] Passing Lists To Unmanaged Code
I'm currently embedding mono in a virtual world to support user scripting. The managed scripts need to call library functions implemented in unmanaged code that take or return lists. Is it possible to pass lists across the managed/unmanaged boundary? If so, what's the best way to do it? A lot of the documentation on interoperation suggests that this might be hard or impossible. Cheers, Jim. Send instant messages to your online friends http://uk.messenger.yahoo.com ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
