diff options
Diffstat (limited to 'src/csharp')
| -rw-r--r-- | src/csharp/Grpc.Core/Internal/UnmanagedLibrary.cs | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/src/csharp/Grpc.Core/Internal/UnmanagedLibrary.cs b/src/csharp/Grpc.Core/Internal/UnmanagedLibrary.cs index 7185d68efe..1786fc2e3f 100644 --- a/src/csharp/Grpc.Core/Internal/UnmanagedLibrary.cs +++ b/src/csharp/Grpc.Core/Internal/UnmanagedLibrary.cs @@ -51,11 +51,12 @@ namespace Grpc.Core.Internal Logger.Debug("Attempting to load native library \"{0}\"", this.libraryPath); - this.handle = PlatformSpecificLoadLibrary(this.libraryPath); + this.handle = PlatformSpecificLoadLibrary(this.libraryPath, out string loadLibraryErrorDetail); if (this.handle == IntPtr.Zero) { - throw new IOException(string.Format("Error loading native library \"{0}\"", this.libraryPath)); + throw new IOException(string.Format("Error loading native library \"{0}\". {1}", + this.libraryPath, loadLibraryErrorDetail)); } } @@ -129,31 +130,44 @@ namespace Grpc.Core.Internal /// <summary> /// Loads library in a platform specific way. /// </summary> - private static IntPtr PlatformSpecificLoadLibrary(string libraryPath) + private static IntPtr PlatformSpecificLoadLibrary(string libraryPath, out string errorMsg) { if (PlatformApis.IsWindows) { + // TODO(jtattermusch): populate the error on Windows + errorMsg = null; return Windows.LoadLibrary(libraryPath); } if (PlatformApis.IsLinux) { if (PlatformApis.IsMono) { - return Mono.dlopen(libraryPath, RTLD_GLOBAL + RTLD_LAZY); + return LoadLibraryPosix(Mono.dlopen, Mono.dlerror, libraryPath, out errorMsg); } if (PlatformApis.IsNetCore) { - return CoreCLR.dlopen(libraryPath, RTLD_GLOBAL + RTLD_LAZY); + return LoadLibraryPosix(CoreCLR.dlopen, CoreCLR.dlerror, libraryPath, out errorMsg); } - return Linux.dlopen(libraryPath, RTLD_GLOBAL + RTLD_LAZY); + return LoadLibraryPosix(Linux.dlopen, Linux.dlerror, libraryPath, out errorMsg); } if (PlatformApis.IsMacOSX) { - return MacOSX.dlopen(libraryPath, RTLD_GLOBAL + RTLD_LAZY); + return LoadLibraryPosix(MacOSX.dlopen, MacOSX.dlerror, libraryPath, out errorMsg); } throw new InvalidOperationException("Unsupported platform."); } + private static IntPtr LoadLibraryPosix(Func<string, int, IntPtr> dlopenFunc, Func<IntPtr> dlerrorFunc, string libraryPath, out string errorMsg) + { + errorMsg = null; + IntPtr ret = dlopenFunc(libraryPath, RTLD_GLOBAL + RTLD_LAZY); + if (ret == IntPtr.Zero) + { + errorMsg = Marshal.PtrToStringAnsi(dlerrorFunc()); + } + return ret; + } + private static string FirstValidLibraryPath(string[] libraryPathAlternatives) { GrpcPreconditions.CheckArgument(libraryPathAlternatives.Length > 0, "libraryPathAlternatives cannot be empty."); @@ -184,6 +198,9 @@ namespace Grpc.Core.Internal internal static extern IntPtr dlopen(string filename, int flags); [DllImport("libdl.so")] + internal static extern IntPtr dlerror(); + + [DllImport("libdl.so")] internal static extern IntPtr dlsym(IntPtr handle, string symbol); } @@ -193,6 +210,9 @@ namespace Grpc.Core.Internal internal static extern IntPtr dlopen(string filename, int flags); [DllImport("libSystem.dylib")] + internal static extern IntPtr dlerror(); + + [DllImport("libSystem.dylib")] internal static extern IntPtr dlsym(IntPtr handle, string symbol); } @@ -209,6 +229,9 @@ namespace Grpc.Core.Internal internal static extern IntPtr dlopen(string filename, int flags); [DllImport("__Internal")] + internal static extern IntPtr dlerror(); + + [DllImport("__Internal")] internal static extern IntPtr dlsym(IntPtr handle, string symbol); } @@ -223,6 +246,9 @@ namespace Grpc.Core.Internal internal static extern IntPtr dlopen(string filename, int flags); [DllImport("libcoreclr.so")] + internal static extern IntPtr dlerror(); + + [DllImport("libcoreclr.so")] internal static extern IntPtr dlsym(IntPtr handle, string symbol); } } |