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using System;
using System.IO;
using System.Reflection;
using System.Runtime.Loader;
using System.Linq;
using System.Runtime.InteropServices;
namespace Tizen.Runtime.Coreclr
{
public static class AssemblyManager
{
public static bool Launch(
[In] string rootPath,
[In] string path,
[In] int argc,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex=2)]
[In] string[] argv)
{
ALog.Debug($"Application Launch path : {path}");
try
{
DirectoryInfo bindir = new DirectoryInfo(Path.Combine(rootPath, "bin"));
DirectoryInfo libdir = new DirectoryInfo(Path.Combine(rootPath, "lib"));
if (Directory.Exists(bindir.FullName))
{
CurrentAssemblyLoaderContext.AddSearchableDirectory(bindir.FullName);
}
if (Directory.Exists(libdir.FullName))
{
CurrentAssemblyLoaderContext.AddSearchableDirectory(libdir.FullName);
}
Execute(path, argv);
}
catch(Exception e)
{
ALog.Debug("Exception in Launch()");
PrintException(e);
return false;
}
return true;
}
public static void Prepared()
{
try
{
string preloadPath = "";
ICustomAttributeProvider assembly = typeof(AssemblyManager).GetTypeInfo().Assembly;
var attributes = assembly.GetCustomAttributes(typeof(DefaultConfigAttribute), false);
foreach (DefaultConfigAttribute dca in attributes)
{
ALog.Debug($"{dca.Key} = {dca.Value}");
if (dca.Key == "PreloadPath")
{
preloadPath = dca.Value;
}
}
if (!Initialize(preloadPath))
{
ALog.Debug($"Failed to Initialized with {preloadPath}");
}
}
catch(Exception e)
{
ALog.Debug("Exception at Preparing");
PrintException(e);
}
}
private static void PrintException(Exception exception)
{
while (exception != null)
{
ALog.Debug(exception.ToString());
exception = exception.InnerException;
}
}
public static bool Initialize(string preloadDirectory)
{
try
{
CurrentAssemblyLoaderContext = new AssemblyLoader();
if (!string.IsNullOrEmpty(preloadDirectory))
{
Console.WriteLine($"[{preloadDirectory}]");
DirectoryInfo d = new DirectoryInfo(preloadDirectory);
if (Directory.Exists(d.FullName))
{
CurrentAssemblyLoaderContext.AddSearchableDirectory(d.FullName);
string[] dlls = Directory.GetFiles(d.FullName, "*.dll");
foreach (string dll in dlls)
{
ALog.Debug($"preload dll : {dll}");
CurrentAssemblyLoaderContext.LoadFromAssemblyPath(dll);
}
}
}
}
catch (Exception e)
{
ALog.Debug("Exception on Initialized");
PrintException(e);
return false;
}
return true;
}
public static void Execute(string dllPath, string[] argv)
{
try
{
FileInfo f = new FileInfo(dllPath);
if (File.Exists(f.FullName))
{
Assembly asm = CurrentAssemblyLoaderContext.LoadFromAssemblyPath(f.FullName);
if (asm == null) throw new FileNotFoundException($"{f.FullName} is not found");
if (asm.EntryPoint == null) throw new ArgumentException($"{f.FullName} did not have EntryPoint");
asm.EntryPoint.Invoke(null, new object[]{argv});
}
}
catch (Exception e)
{
ALog.Debug("Exception on Execute");
PrintException(e);
}
}
public static AssemblyLoader CurrentAssemblyLoaderContext
{
get;
private set;
}
}
}
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