Use FileShare.None when creating files

6 files changed, 16 insertions, 8 deletions

diff --git a/Emby.Server.Implementations/AppBase/ConfigurationHelper.cs b/Emby.Server.Implementations/AppBase/ConfigurationHelper.cs
index 77819c764..3f7076383 100644
--- a/Emby.Server.Implementations/AppBase/ConfigurationHelper.cs
+++ b/Emby.Server.Implementations/AppBase/ConfigurationHelper.cs
@@ -53,7 +53,8 @@ namespace Emby.Server.Implementations.AppBase
 
                 Directory.CreateDirectory(directory);
                 // Save it after load in case we got new items
-                using (var fs = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read))
+                // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
+                using (var fs = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None))
                 {
                     fs.Write(newBytes, 0, newBytesLen);
                 }
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
index 341194f23..7a6b1d8b6 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
@@ -45,7 +45,8 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
         {
             Directory.CreateDirectory(Path.GetDirectoryName(targetFile));
 
-            using (var output = new FileStream(targetFile, FileMode.Create, FileAccess.Write, FileShare.Read))
+            // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
+            using (var output = new FileStream(targetFile, FileMode.Create, FileAccess.Write, FileShare.None))
             {
                 onStarted();
 
@@ -70,7 +71,8 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
             Directory.CreateDirectory(Path.GetDirectoryName(targetFile));
 
-            await using var output = new FileStream(targetFile, FileMode.Create, FileAccess.Write, FileShare.Read);
+            // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
+            await using var output = new FileStream(targetFile, FileMode.Create, FileAccess.Write, FileShare.None);
 
             onStarted();
 
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
index 13b5a1c55..91a21db60 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
@@ -1856,7 +1856,8 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 return;
             }
 
-            using (var stream = new FileStream(nfoPath, FileMode.Create, FileAccess.Write, FileShare.Read))
+            // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
+            using (var stream = new FileStream(nfoPath, FileMode.Create, FileAccess.Write, FileShare.None))
             {
                 var settings = new XmlWriterSettings
                 {
@@ -1920,7 +1921,8 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 return;
             }
 
-            using (var stream = new FileStream(nfoPath, FileMode.Create, FileAccess.Write, FileShare.Read))
+            // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
+            using (var stream = new FileStream(nfoPath, FileMode.Create, FileAccess.Write, FileShare.None))
             {
                 var settings = new XmlWriterSettings
                 {
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
index 78a82118e..40b934d32 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
@@ -91,7 +91,8 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             Directory.CreateDirectory(Path.GetDirectoryName(logFilePath));
 
             // FFMpeg writes debug/error info to stderr. This is useful when debugging so let's put it in the log directory.
-            _logFileStream = new FileStream(logFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, true);
+            // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
+            _logFileStream = new FileStream(logFilePath, FileMode.Create, FileAccess.Write, FileShare.None, IODefaults.FileStreamBufferSize, true);
 
             await JsonSerializer.SerializeAsync(_logFileStream, mediaSource, _jsonOptions, cancellationToken).ConfigureAwait(false);
             await _logFileStream.WriteAsync(Encoding.UTF8.GetBytes(Environment.NewLine + Environment.NewLine + commandLineLogMessage + Environment.NewLine + Environment.NewLine), cancellationToken).ConfigureAwait(false);
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs
index b16ccc561..08832bae1 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs
@@ -193,7 +193,8 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
         {
             var resolved = false;
 
-            using (var fileStream = new FileStream(file, FileMode.Create, FileAccess.Write, FileShare.Read))
+            // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
+            using (var fileStream = new FileStream(file, FileMode.Create, FileAccess.Write, FileShare.None))
             {
                 while (true)
                 {
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs
index eeb2426f4..233c3d83a 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs
@@ -136,7 +136,8 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
                     Logger.LogInformation("Beginning {0} stream to {1}", GetType().Name, TempFilePath);
                     using var message = response;
                     await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
-                    await using var fileStream = new FileStream(TempFilePath, FileMode.Create, FileAccess.Write, FileShare.Read);
+                    // use FileShare.None as this bypasses dotnet bug dotnet/runtime#42790 .
+                    await using var fileStream = new FileStream(TempFilePath, FileMode.Create, FileAccess.Write, FileShare.None);
                     await StreamHelper.CopyToAsync(
                         stream,
                         fileStream,