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GLibrary.cs: introduce IsSupported

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This commit is contained in:
lytico 2021-07-19 19:24:17 +02:00
parent b3fd3f91bf
commit 6b4cf555e0
1 changed files with 79 additions and 63 deletions
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60
Source/Libs/Shared/GLibrary.cs
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@ -5,16 +5,19 @@ using System.Runtime.InteropServices;
class GLibrary class GLibrary
{ {
[DllImport("kernel32.dll", SetLastError = true)] [DllImport("kernel32.dll", SetLastError = true)]
private static extern bool SetDllDirectory(string lpPathName); private static extern bool SetDllDirectory(string lpPathName);
private static Dictionary<Library, IntPtr> _libraries; private static Dictionary<Library, IntPtr> _libraries;
private static HashSet<Library> _librariesNotFound;
private static Dictionary<string, IntPtr> _customlibraries; private static Dictionary<string, IntPtr> _customlibraries;
private static Dictionary<Library, string[]> _libraryDefinitions; private static Dictionary<Library, string[]> _libraryDefinitions;
static GLibrary() static GLibrary()
{ {
_customlibraries = new Dictionary<string, IntPtr>(); _customlibraries = new Dictionary<string, IntPtr>();
_librariesNotFound = new HashSet<Library>();
_libraries = new Dictionary<Library, IntPtr>(); _libraries = new Dictionary<Library, IntPtr>();
_libraryDefinitions = new Dictionary<Library, string[]>(); _libraryDefinitions = new Dictionary<Library, string[]>();
_libraryDefinitions[Library.GLib] = new[] {"libglib-2.0-0.dll", "libglib-2.0.so.0", "libglib-2.0.0.dylib", "glib-2.dll"}; _libraryDefinitions[Library.GLib] = new[] {"libglib-2.0-0.dll", "libglib-2.0.so.0", "libglib-2.0.0.dylib", "glib-2.dll"};
@ -32,36 +35,49 @@ class GLibrary
public static IntPtr Load(Library library) public static IntPtr Load(Library library)
{ {
var ret = IntPtr.Zero; if (_libraries.TryGetValue(library, out var ret))
if (_libraries.TryGetValue(library, out ret))
return ret; return ret;
if (FuncLoader.IsWindows) if (TryGet(library, out ret)) return ret;
var err = library + ": " + string.Join(", ", _libraryDefinitions[library]);
throw new DllNotFoundException(err);
}
public static bool IsSupported(Library library) => TryGet(library, out var __);
static bool TryGet(Library library, out IntPtr ret)
{ {
ret = IntPtr.Zero;
if (_libraries.TryGetValue(library, out ret)) {
return true;
}
if (_librariesNotFound.Contains(library)) {
return false;
}
if (FuncLoader.IsWindows) {
ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][0]); ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][0]);
if (ret == IntPtr.Zero) if (ret == IntPtr.Zero) {
{
SetDllDirectory(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Gtk", "3.24.24")); SetDllDirectory(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Gtk", "3.24.24"));
ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][0]); ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][0]);
} }
} } else if (FuncLoader.IsOSX) {
else if (FuncLoader.IsOSX)
{
ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][2]); ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][2]);
if (ret == IntPtr.Zero) if (ret == IntPtr.Zero) {
{
ret = FuncLoader.LoadLibrary("/usr/local/lib/" + _libraryDefinitions[library][2]); ret = FuncLoader.LoadLibrary("/usr/local/lib/" + _libraryDefinitions[library][2]);
} }
} } else
else
ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][1]); ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][1]);
if (ret == IntPtr.Zero) if (ret == IntPtr.Zero) {
{ for (var i = 0; i < _libraryDefinitions[library].Length; i++) {
for (int i = 0; i < _libraryDefinitions[library].Length; i++)
{
ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][i]); ret = FuncLoader.LoadLibrary(_libraryDefinitions[library][i]);
if (ret != IntPtr.Zero) if (ret != IntPtr.Zero)
@ -69,13 +85,13 @@ class GLibrary
} }
} }
if (ret == IntPtr.Zero) if (ret != IntPtr.Zero) {
{ _libraries[library] = ret;
var err = library + ": " + string.Join(", ", _libraryDefinitions[library]); } else {
throw new DllNotFoundException(err); _librariesNotFound.Add(library);
} }
_libraries[library] = ret; return ret != IntPtr.Zero;
return ret;
} }
} }