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// GLib.Argv.cs : Argv marshaling class
//
// Author: Mike Kestner <mkestner@novell.com>
//
// Copyright (c) 2004 Novell, Inc.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the Lesser GNU General
// Public License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
namespace Gst.GLib {
using System;
using System.Runtime.InteropServices;
public class Argv {
IntPtr[] arg_ptrs;
IntPtr handle;
bool add_progname = false;
[DllImport("libglib-2.0-0.dll")]
static extern IntPtr g_malloc(IntPtr size);
[DllImport("libglib-2.0-0.dll")]
static extern void g_free (IntPtr mem);
~Argv ()
{
foreach (IntPtr arg in arg_ptrs)
g_free (arg);
g_free (handle);
}
public Argv (string[] args) : this (args, false) {}
public Argv (string[] args, bool add_program_name)
{
add_progname = add_program_name;
if (add_progname) {
string[] full = new string [args.Length + 1];
full [0] = System.Environment.GetCommandLineArgs ()[0];
args.CopyTo (full, 1);
args = full;
}
arg_ptrs = new IntPtr [args.Length];
for (int i = 0; i < args.Length; i++)
arg_ptrs [i] = Marshaller.StringToPtrGStrdup (args[i]);
handle = g_malloc (new IntPtr (IntPtr.Size * args.Length));
for (int i = 0; i < args.Length; i++)
Marshal.WriteIntPtr (handle, i * IntPtr.Size, arg_ptrs [i]);
}
public IntPtr Handle {
get {
return handle;
}
}
public string[] GetArgs (int argc)
{
int count = add_progname ? argc - 1 : argc;
int idx = add_progname ? 1 : 0;
string[] result = new string [count];
for (int i = 0; i < count; i++, idx++)
result [i] = Marshaller.Utf8PtrToString (Marshal.ReadIntPtr (handle, idx * IntPtr.Size));
return result;
}
}
}
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