On Mon, 2009-03-23 at 21:15 +0100, Robert Jordan wrote:
> Chenthill wrote:
> > I updated to the last mono builds using monocharge and still see the
> > problem.
> > Am loading the assembly from a library. So am not using mono_jit_exec..
>
> You must use mono_jit_exec. Otherwise the runtime does not have
> sane defaults for the main assembly, which leads to errors whenever
> Assembly.GetExecutingAssembly() is invoked.
>
> Just add this code to the aforementioned assembly:
>
> internal class EntryPoint {static void Main () {} }
>
> and call mono_jit_exec on it before starting to use it. The assembly
> does not need to be an .exe.
I tried adding the EntryPoint class and compiling the assembly as a
library, but it did not work. I get the following error,
'Assembly 'sample.dll' doesn't have an entry point.'
Attaching the test programs which I used. Please change the hard coded
paths.
But compiling it as a executable seems to work fine!! I have changed my
code to have it as a workaround. Am really happy to get it working and
thanks a lot for your help :)
thanks, Chenthill.
>
> Robert
>
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#include <glib.h>
#include <mono/jit/jit.h>
#include <mono/metadata/assembly.h>
#include <mono/metadata/debug-helpers.h>
void
chen_go ()
{
g_print ("Lets see how it goes \n");
}
int
main (int argc, char *argv[])
{
MonoDomain *domain;
MonoAssembly *assembly;
MonoImage *image;
MonoMethod *method;
MonoClass *mclass, *mclass1;
MonoMethodDesc *desc;
MonoObject *result, *this, *obool;
void *args [1];
gboolean val;
domain = mono_jit_init ("/home/chen/practice/sample.dll");
mono_thread_attach (domain);
mono_config_parse (NULL);
assembly = mono_domain_assembly_open (domain, "/home/chen/practice/sample.dll");
if (!assembly) {
g_print ("Opening assembly failed :( \n)");
return 0;
}
mono_jit_exec (domain, assembly, argc -1, argv + 1);
/*
image = mono_assembly_get_image (assembly);
desc = mono_method_desc_new ("test", FALSE);
mclass = mono_class_from_name (image, "Myspace", "simple");
mclass1 = mono_class_get_parent (mclass);
if (mclass1)
{
g_print ("Got the parent class \n");
} else {
g_print ("No parent \n");
return;
}
gpointer iter = NULL;
while (method = mono_class_get_methods (mclass1, &iter)) {
g_print ("\n Method name is : %s \n", mono_method_get_name (method));
}
val = FALSE;
args [0] = &val;
method = mono_class_get_method_from_name (mclass1, "CallMe", -1);
if (!method) {
g_print ("Unable to get the method :( \n)");
return 0;
}
this = mono_object_new (domain, mclass);
mono_runtime_object_init (this);
result = mono_runtime_invoke (method, this, NULL, NULL); */
return 0;
}
// sample.cs created with MonoDevelop
// User: chen at 3:28 PM 6/21/2008
//
// To change standard headers go to Edit->Preferences->Coding->Standard Headers
//
using System;
using System.Runtime.InteropServices;
namespace Myspace
{
public class sample
{
[DllImport ("/home/chen/practice/mload", EntryPoint="chen_go")]
static extern void chen_go ();
[DllImport ("libc", EntryPoint="socket")]
protected static extern int socket (int domain, int type, int protocol);
public sample()
{
Console.Out.WriteLine ("I need to call this function from C now \n");
}
public void Chen ()
{
throw new Exception ("chen ");
}
public void Print ()
{
Console.WriteLine ("Print called");
}
public void CallMe ()
{
string chen = "No value passed";
int r = socket (1, 1, 0);
try {
Chen ();
} catch (Exception ex)
{
Console.WriteLine (ex.Message);
}
Console.Out.WriteLine (chen);
}
// public static void Main ()
// {
// sample chen = new sample ();
//
// chen.CallMe ();
//
// chen_go ();
// }
}
public class simple:sample
{
public void derived ()
{
}
}
internal class EntryPoint
{
public static void Main () {}
}
}
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