public Mutex(bool initiallyOwned, String name, out bool createdNew)
{
if (null != name && System.IO.Path.MAX_PATH < name.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", name));
}
Win32Native.SECURITY_ATTRIBUTES secAttrs = null;
SafeWaitHandle mutexHandle = null;
bool newMutex = false;
RuntimeHelpers.CleanupCode cleanupCode = new RuntimeHelpers.CleanupCode(MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(mutexHandle, false);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(
delegate(object userData) { // try block
RuntimeHelpers.PrepareConstrainedRegions();
try {
}
finally {
if (initiallyOwned)
{
cleanupInfo.inCriticalRegion = true;
Thread.BeginThreadAffinity();
Thread.BeginCriticalRegion();
}
}
int errorCode = 0;
RuntimeHelpers.PrepareConstrainedRegions();
try {
}
finally {
errorCode = CreateMutexHandle(initiallyOwned, name, secAttrs, out mutexHandle);
}
if (mutexHandle.IsInvalid)
{
mutexHandle.SetHandleAsInvalid();
if (null != name && 0 != name.Length && Win32Native.ERROR_INVALID_HANDLE == errorCode)
{
throw new WaitHandleCannotBeOpenedException(Environment.GetResourceString("Threading.WaitHandleCannotBeOpenedException_InvalidHandle", name));
}
__Error.WinIOError(errorCode, name);
}
newMutex = errorCode != Win32Native.ERROR_ALREADY_EXISTS;
SetHandleInternal(mutexHandle);
mutexHandle.SetAsMutex();
hasThreadAffinity = true;
},
cleanupCode,
cleanupInfo);
createdNew = newMutex;
}
internal void MutexTryCode(object userData)
{
SafeWaitHandle mutexHandle = null;
// try block
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
if (m_initiallyOwned)
{
m_cleanupInfo.inCriticalRegion = true;
#if !FEATURE_CORECLR
Thread.BeginThreadAffinity();
Thread.BeginCriticalRegion();
#endif //!FEATURE_CORECLR
}
}
int errorCode = 0;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
errorCode = CreateMutexHandle(m_initiallyOwned, m_name, m_secAttrs, out mutexHandle);
}
if (mutexHandle.IsInvalid)
{
mutexHandle.SetHandleAsInvalid();
if (null != m_name && 0 != m_name.Length && Win32Native.ERROR_INVALID_HANDLE == errorCode)
{
throw new WaitHandleCannotBeOpenedException(Environment.GetResourceString("Threading.WaitHandleCannotBeOpenedException_InvalidHandle", m_name));
}
__Error.WinIOError(errorCode, m_name);
}
m_newMutex = errorCode != Win32Native.ERROR_ALREADY_EXISTS;
m_mutex.SetHandleInternal(mutexHandle);
mutexHandle.SetAsMutex();
m_mutex.hasThreadAffinity = true;
}
internal void MutexTryCode(object userData)
{
SafeWaitHandle mutexHandle = null;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
if (this.m_initiallyOwned)
{
this.m_cleanupInfo.inCriticalRegion = true;
Thread.BeginThreadAffinity();
Thread.BeginCriticalRegion();
}
}
int errorCode = 0;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
errorCode = Mutex.CreateMutexHandle(this.m_initiallyOwned, this.m_name, this.m_secAttrs, out mutexHandle);
}
if (mutexHandle.IsInvalid)
{
mutexHandle.SetHandleAsInvalid();
if (((this.m_name != null) && (this.m_name.Length != 0)) && (6 == errorCode))
{
throw new WaitHandleCannotBeOpenedException(Environment.GetResourceString("Threading.WaitHandleCannotBeOpenedException_InvalidHandle", new object[] { this.m_name }));
}
__Error.WinIOError(errorCode, this.m_name);
}
this.m_newMutex = errorCode != 0xb7;
this.m_mutex.SetHandleInternal(mutexHandle);
mutexHandle.SetAsMutex();
this.m_mutex.hasThreadAffinity = true;
}
private Mutex(SafeWaitHandle handle)
{
SetHandleInternal(handle);
handle.SetAsMutex();
hasThreadAffinity = true;
}