internal static async Task <BuildResponse> RunServerCompilationCoreAsync(
Guid requestId,
RequestLanguage language,
List <string> arguments,
BuildPathsAlt buildPaths,
string?pipeName,
string?keepAlive,
string?libDirectory,
int?timeoutOverride,
CreateServerFunc createServerFunc,
ICompilerServerLogger logger,
CancellationToken cancellationToken)
{
if (pipeName is null)
{
throw new ArgumentException(nameof(pipeName));
}
if (buildPaths.TempDirectory == null)
{
throw new ArgumentException(nameof(buildPaths));
}
// early check for the build hash. If we can't find it something is wrong; no point even trying to go to the server
if (string.IsNullOrWhiteSpace(BuildProtocolConstants.GetCommitHash()))
{
return(new IncorrectHashBuildResponse());
}
var pipeTask = tryConnectToServer(pipeName, buildPaths, timeoutOverride, createServerFunc, logger, cancellationToken);
if (pipeTask is null)
{
return(new RejectedBuildResponse("Failed to connect to server"));
}
else
{
using var pipe = await pipeTask.ConfigureAwait(false);
if (pipe is null)
{
return(new RejectedBuildResponse("Failed to connect to server"));
}
else
{
var request = BuildRequest.Create(language,
arguments,
workingDirectory: buildPaths.WorkingDirectory,
tempDirectory: buildPaths.TempDirectory,
compilerHash: BuildProtocolConstants.GetCommitHash() ?? "",
requestId: requestId,
keepAlive: keepAlive,
libDirectory: libDirectory);
return(await TryCompileAsync(pipe, request, logger, cancellationToken).ConfigureAwait(false));
}
}
internal static async Task <BuildResponse> RunServerCompilationCore(
RequestLanguage language,
List <string> arguments,
BuildPathsAlt buildPaths,
string pipeName,
string keepAlive,
string libEnvVariable,
int?timeoutOverride,
CreateServerFunc createServerFunc,
CancellationToken cancellationToken)
{
if (pipeName == null)
{
return(new RejectedBuildResponse());
}
if (buildPaths.TempDirectory == null)
{
return(new RejectedBuildResponse());
}
// early check for the build hash. If we can't find it something is wrong; no point even trying to go to the server
if (string.IsNullOrWhiteSpace(BuildProtocolConstants.GetCommitHash()))
{
return(new IncorrectHashBuildResponse());
}
var pipeTask = tryConnectToServer(pipeName, buildPaths, timeoutOverride, createServerFunc, cancellationToken);
if (pipeTask is null)
{
return(new RejectedBuildResponse());
}
else
{
var pipe = await pipeTask.ConfigureAwait(false);
if (pipe is null)
{
return(new RejectedBuildResponse());
}
else
{
var request = BuildRequest.Create(language,
buildPaths.WorkingDirectory,
buildPaths.TempDirectory,
BuildProtocolConstants.GetCommitHash(),
arguments,
keepAlive,
libEnvVariable);
return(await TryCompile(pipe, request, cancellationToken).ConfigureAwait(false));
}
}
internal static BuildRequest CreateBuildRequest(
Guid requestId,
RequestLanguage language,
List <string> arguments,
string workingDirectory,
string tempDirectory,
string?keepAlive,
string?libDirectory)
{
Debug.Assert(workingDirectory is object);
Debug.Assert(tempDirectory is object);
return(BuildRequest.Create(
language,
arguments,
workingDirectory: workingDirectory,
tempDirectory: tempDirectory,
compilerHash: BuildProtocolConstants.GetCommitHash() ?? "",
requestId: requestId,
keepAlive: keepAlive,
libDirectory: libDirectory));
}
internal static async Task <BuildResponse> RunServerCompilationCore(
RequestLanguage language,
List <string> arguments,
BuildPathsAlt buildPaths,
string pipeName,
string keepAlive,
string libEnvVariable,
int?timeoutOverride,
CreateServerFunc createServerFunc,
CancellationToken cancellationToken)
{
if (pipeName == null)
{
return(new RejectedBuildResponse());
}
if (buildPaths.TempDirectory == null)
{
return(new RejectedBuildResponse());
}
// early check for the build hash. If we can't find it something is wrong; no point even trying to go to the server
if (string.IsNullOrWhiteSpace(BuildProtocolConstants.GetCommitHash()))
{
return(new IncorrectHashBuildResponse());
}
var clientDir = buildPaths.ClientDirectory;
var timeoutNewProcess = timeoutOverride ?? TimeOutMsNewProcess;
var timeoutExistingProcess = timeoutOverride ?? TimeOutMsExistingProcess;
Task <NamedPipeClientStream> pipeTask = null;
IServerMutex clientMutex = null;
try
{
var holdsMutex = false;
try
{
var clientMutexName = GetClientMutexName(pipeName);
clientMutex = OpenOrCreateMutex(clientMutexName, out holdsMutex);
}
catch
{
// The Mutex constructor can throw in certain cases. One specific example is docker containers
// where the /tmp directory is restricted. In those cases there is no reliable way to execute
// the server and we need to fall back to the command line.
//
// Example: https://github.com/dotnet/roslyn/issues/24124
return(new RejectedBuildResponse());
}
if (!holdsMutex)
{
try
{
holdsMutex = clientMutex.TryLock(timeoutNewProcess);
if (!holdsMutex)
{
return(new RejectedBuildResponse());
}
}
catch (AbandonedMutexException)
{
holdsMutex = true;
}
}
// Check for an already running server
var serverMutexName = GetServerMutexName(pipeName);
bool wasServerRunning = WasServerMutexOpen(serverMutexName);
var timeout = wasServerRunning ? timeoutExistingProcess : timeoutNewProcess;
if (wasServerRunning || createServerFunc(clientDir, pipeName))
{
pipeTask = TryConnectToServerAsync(pipeName, timeout, cancellationToken);
}
}
finally
{
clientMutex?.Dispose();
}
if (pipeTask != null)
{
var pipe = await pipeTask.ConfigureAwait(false);
if (pipe != null)
{
var request = BuildRequest.Create(language,
buildPaths.WorkingDirectory,
buildPaths.TempDirectory,
BuildProtocolConstants.GetCommitHash(),
arguments,
keepAlive,
libEnvVariable);
return(await TryCompile(pipe, request, cancellationToken).ConfigureAwait(false));
}
}
return(new RejectedBuildResponse());
}
private static Task <BuildResponse> RunServerCompilationCore(
RequestLanguage language,
List <string> arguments,
BuildPaths buildPaths,
string pipeName,
string keepAlive,
string libEnvVariable,
Func <string, string, bool> tryCreateServerFunc,
CancellationToken cancellationToken)
{
var clientDir = buildPaths.ClientDirectory;
var clientMutexName = BuildProtocolConstants.GetClientMutexName(pipeName);
bool holdsMutex;
using (var clientMutex = new Mutex(initiallyOwned: true,
name: clientMutexName,
createdNew: out holdsMutex))
{
try
{
if (!holdsMutex)
{
try
{
holdsMutex = clientMutex.WaitOne(TimeOutMsNewProcess);
if (!holdsMutex)
{
return(Task.FromResult <BuildResponse>(null));
}
}
catch (AbandonedMutexException)
{
holdsMutex = true;
}
}
// Check for an already running server
var serverMutexName = BuildProtocolConstants.GetServerMutexName(pipeName);
Mutex mutexIgnore;
bool wasServerRunning = Mutex.TryOpenExisting(serverMutexName, out mutexIgnore);
var timeout = wasServerRunning ? TimeOutMsExistingProcess : TimeOutMsNewProcess;
NamedPipeClientStream pipe = null;
if (wasServerRunning || tryCreateServerFunc(clientDir, pipeName))
{
pipe = TryConnectToServer(pipeName,
timeout,
cancellationToken);
}
if (pipe != null)
{
var request = BuildRequest.Create(language,
buildPaths.WorkingDirectory,
arguments,
keepAlive,
libEnvVariable);
return(TryCompile(pipe, request, cancellationToken));
}
}
finally
{
if (holdsMutex)
{
clientMutex.ReleaseMutex();
}
}
}
return(null);
}