我有多个项目的并行构建,每个项目在某个时间点都会调用 <Exec />
任务。此 exec 任务正在运行 3pty 工具,如果此工具的另一个实例正在运行,该工具会崩溃。有没有一些本地方法如何在 msbuild 中实现“mutex”?
明显的解决方案(有效)是使构建同步 - 但这会减慢整个构建速度。
最佳答案
最后我编写了自己的 msbuild 扩展库,如下所示
msbuild部分:
<UsingTask TaskName="MutexExec" AssemblyFile="$(CommonTasksAssembly)" />
C#部分:
// <PackageReference Include="Microsoft.Build.Utilities.Core" Version="16.9.0" />
// <PackageReference Include="Microsoft.Build.Tasks.Core" Version="16.9.0" />
// <PackageReference Include="Microsoft.Build.Framework" Version="16.9.0" />
using System;
using System.Diagnostics;
using System.Threading;
using Microsoft.Build.Framework;
using Microsoft.Build.Tasks;
/// <summary>
/// Like a Exec task, but with critical section
/// </summary>
public class MutexExec : Exec
{
/// <summary>
/// Gets or sets mutex name
/// </summary>
[Required]
public string MutexName { get; set; }
/// <inheritdoc />
public override bool Execute()
{
var timeout = TimeSpan.FromMinutes(5);
var stopwatch = Stopwatch.StartNew();
while (stopwatch.Elapsed < timeout)
{
bool createdNew;
using (var mutex = new Mutex(true, this.MutexName, out createdNew))
{
if (createdNew)
{
bool result = base.Execute();
try
{
this.Log.LogMessage(MessageImportance.Normal, "Releasing {0}", this.MutexName);
mutex.ReleaseMutex();
}
catch (Exception e)
{
this.Log.LogError("Failure releasing {0} - {1}", this.MutexName, e);
}
return result;
}
}
this.Log.LogMessage(MessageImportance.Normal, "Waiting for {0} - ellapsed {1}", this.MutexName, stopwatch.Elapsed);
Thread.Sleep(5000);
continue;
}
this.Log.LogError("Failed to acquire {0} in {1}.", this.MutexName, timeout);
return false;
}
}
关于MSBuild - 如何创建 "critical section",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62821122/