public bool Handle()
{
var logger = LoggerManager.LoggerFactory.CreateLogger <FlacLibHandler>();
#if !LINUX
#endif
#if WINDOWS
var libPath = Path.Combine(
// ReSharper disable once AssignNullToNotNullAttribute
Path.GetDirectoryName(new Uri(Assembly.GetExecutingAssembly().CodeBase).LocalPath),
Environment.Is64BitProcess ? "win-x64" : "win-x86");
#if NETSTANDARD2_0
// On Full Framework, AssemblyLoadContext isn't available, so we add the directory to PATH
if (RuntimeInformation.FrameworkDescription.StartsWith(".NET Framework", StringComparison.Ordinal))
{
Environment.SetEnvironmentVariable("PATH",
$"{libPath}{Path.PathSeparator}{Environment.GetEnvironmentVariable("PATH")}");
}
else
{
AddUnmanagedLibraryPath(libPath);
}
#else
AddUnmanagedLibraryPath(libPath);
#endif
var module = SafeNativeMethods.LoadLibrary(Path.Combine(libPath, "libFLAC.dll"));
#elif OSX
var osVersion = GetOSVersion();
var libPath = Path.Combine(
// ReSharper disable once AssignNullToNotNullAttribute
Path.GetDirectoryName(new Uri(Assembly.GetExecutingAssembly().CodeBase).LocalPath),
osVersion.StartsWith("10.12", StringComparison.Ordinal) ? "osx.10.12-x64" :
osVersion.StartsWith("10.13", StringComparison.Ordinal) ? "osx.10.13-x64" :
"osx.10.14-x64");
AddUnmanagedLibraryPath(libPath);
var module = SafeNativeMethods.DlOpen(Path.Combine(libPath, "libFLAC.dylib"), 2);
#else // LINUX
if (!VerifyLibrary("libFLAC.so.8"))
{
logger.LogWarning(
GetDistribution().Equals("Ubuntu", StringComparison.OrdinalIgnoreCase)
? "Missing libFLAC.so.8. Run 'sudo apt-get install -y libflac8 && sudo updatedb' then restart AudioWorks."
: "Missing libFLAC.so.8.");
return(false);
}
var module = SafeNativeMethods.DlOpen("libFLAC.so.8", 2);
#endif
try
{
logger.LogInformation("Using libFLAC version {0}.",
Marshal.PtrToStringAnsi(
Marshal.PtrToStructure <IntPtr>(
#if WINDOWS
SafeNativeMethods.GetProcAddress(module, "FLAC__VENDOR_STRING"))));
#else
SafeNativeMethods.DlSym(module, "FLAC__VENDOR_STRING"))));
#endif
}
finally
{
#if WINDOWS
SafeNativeMethods.FreeLibrary(module);
#else
SafeNativeMethods.DlClose(module);
#endif
}
return(true);
}
public bool Handle()
{
var logger = LoggerManager.LoggerFactory.CreateLogger <FlacLibHandler>();
#if !LINUX
#endif
#if WINDOWS
var libPath = Path.Combine(
Path.GetDirectoryName(new Uri(Assembly.GetExecutingAssembly().Location).LocalPath) !,
Environment.Is64BitProcess ? "win-x64" : "win-x86");
#if NETSTANDARD2_0
// On Full Framework, AssemblyLoadContext isn't available, so we add the directory to PATH
if (RuntimeInformation.FrameworkDescription.StartsWith(".NET Framework", StringComparison.Ordinal))
{
Environment.SetEnvironmentVariable("PATH",
$"{libPath}{Path.PathSeparator}{Environment.GetEnvironmentVariable("PATH")}");
}
else
{
AddUnmanagedLibraryPath(libPath);
}
#else
AddUnmanagedLibraryPath(libPath);
#endif
#elif OSX
var osVersion = GetOSVersion();
var libPath = Path.Combine(
Path.GetDirectoryName(new Uri(Assembly.GetExecutingAssembly().Location).LocalPath) !,
osVersion.StartsWith("10.13", StringComparison.Ordinal) ? "osx.10.13-x64" :
osVersion.StartsWith("10.14", StringComparison.Ordinal) ? "osx.10.14-x64" :
osVersion.StartsWith("10.15", StringComparison.Ordinal) ? "osx.10.15-x64" :
"osx.11");
AddUnmanagedLibraryPath(libPath);
#endif
try
{
foreach (var methodInfo in typeof(SafeNativeMethods).GetMethods(
BindingFlags.NonPublic | BindingFlags.Static))
{
Marshal.Prelink(methodInfo);
}
}
catch (DllNotFoundException e)
{
logger.LogWarning(e.Message);
return(false);
}
catch (EntryPointNotFoundException e)
{
logger.LogWarning(e.Message);
return(false);
}
var module = IntPtr.Zero;
try
{
#if WINDOWS
module = SafeNativeMethods.LoadLibrary(Path.Combine(libPath, "FLAC.dll"));
#elif OSX
module = SafeNativeMethods.DlOpen(Path.Combine(libPath, "libFLAC.dylib"), 2);
#else // LINUX
module = SafeNativeMethods.DlOpen("libFLAC.so.8", 2);
#endif
logger.LogInformation("Using FLAC version {0}.",
Marshal.PtrToStringAnsi(
Marshal.PtrToStructure <IntPtr>(
#if WINDOWS
SafeNativeMethods.GetProcAddress(module, "FLAC__VENDOR_STRING"))));
#else
SafeNativeMethods.DlSym(module, "FLAC__VENDOR_STRING"))));
#endif
}
finally
{
if (module != IntPtr.Zero)
#if WINDOWS
{ SafeNativeMethods.FreeLibrary(module); }
#else
{ SafeNativeMethods.DlClose(module); }
#endif
}
return(true);
}