Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Read stderr asynchronously to prevent hang if many errors logged #70

Merged
merged 1 commit into from
Nov 15, 2023
Merged

Read stderr asynchronously to prevent hang if many errors logged #70

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 7 additions & 7 deletions Rubjerg.Graphviz/GraphvizCommand.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text;

namespace Rubjerg.Graphviz;

Expand Down Expand Up @@ -64,7 +65,11 @@ public static (byte[] stdout, string stderr) Exec(Graph input, string format = "
process.StartInfo.RedirectStandardInput = true;
process.StartInfo.RedirectStandardError = true;

StringBuilder stderr = new StringBuilder();
process.ErrorDataReceived += (_, e) => stderr.AppendLine(e.Data);

_ = process.Start();
process.BeginErrorReadLine();

// Write to stdin
using (StreamWriter sw = process.StandardInput)
Expand All @@ -78,12 +83,6 @@ public static (byte[] stdout, string stderr) Exec(Graph input, string format = "
stdout = memoryStream.ToArray();
}

// Read from stderr
string stderr;
using (StreamReader sr = process.StandardError)
// Let's use unix line endings for consistency with stdout
stderr = sr.ReadToEnd().Replace("\r\n", "\n");

process.WaitForExit();

if (process.ExitCode != 0)
Expand All @@ -94,7 +93,8 @@ public static (byte[] stdout, string stderr) Exec(Graph input, string format = "
else
{
// Process completed successfully.
return (stdout, stderr);
// Let's use unix line endings for consistency with stdout
return (stdout, stderr.ToString().Replace("\r\n", "\n"));
}
}
}
Loading