public unsafe Mutex(bool initiallyOwned, string name, out bool createdNew, MutexSecurity mutexSecurity)
{
if ((name != null) && (260 < name.Length))
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", new object[] { name }));
}
Win32Native.SECURITY_ATTRIBUTES structure = null;
if (mutexSecurity != null)
{
structure = new Win32Native.SECURITY_ATTRIBUTES {
nLength = Marshal.SizeOf(structure)
};
byte[] securityDescriptorBinaryForm = mutexSecurity.GetSecurityDescriptorBinaryForm();
byte * pDest = stackalloc byte[(IntPtr)securityDescriptorBinaryForm.Length];
Buffer.memcpy(securityDescriptorBinaryForm, 0, pDest, 0, securityDescriptorBinaryForm.Length);
structure.pSecurityDescriptor = pDest;
}
RuntimeHelpers.CleanupCode backoutCode = new RuntimeHelpers.CleanupCode(this.MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(null, false);
MutexTryCodeHelper helper = new MutexTryCodeHelper(initiallyOwned, cleanupInfo, name, structure, this);
RuntimeHelpers.TryCode code = new RuntimeHelpers.TryCode(helper.MutexTryCode);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(code, backoutCode, cleanupInfo);
createdNew = helper.m_newMutex;
}
private void MutexCleanupCode(Object userData, bool exceptionThrown)
{
MutexCleanupInfo cleanupInfo = (MutexCleanupInfo)userData;
// If hasThreadAffinity isn't true, we've thrown an exception in the above try, and we must free the mutex
// on this OS thread before ending our thread affninity.
if (!hasThreadAffinity)
{
if (cleanupInfo.mutexHandle != null && !cleanupInfo.mutexHandle.IsInvalid)
{
if (cleanupInfo.inCriticalRegion)
{
Win32Native.ReleaseMutex(cleanupInfo.mutexHandle);
}
cleanupInfo.mutexHandle.Dispose();
}
if (cleanupInfo.inCriticalRegion)
{
#if !FEATURE_CORECLR
Thread.EndCriticalRegion();
Thread.EndThreadAffinity();
#endif
}
}
}
public unsafe Mutex(bool initiallyOwned, string name, out bool createdNew, MutexSecurity mutexSecurity)
{
if ((name != null) && (260 < name.Length))
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", new object[] { name }));
}
Win32Native.SECURITY_ATTRIBUTES secAttrs = null;
if (mutexSecurity != null)
{
secAttrs = new Win32Native.SECURITY_ATTRIBUTES {
nLength = Marshal.SizeOf(secAttrs)
};
byte[] securityDescriptorBinaryForm = mutexSecurity.GetSecurityDescriptorBinaryForm();
byte* pDest = stackalloc byte[1 * securityDescriptorBinaryForm.Length];
Buffer.memcpy(securityDescriptorBinaryForm, 0, pDest, 0, securityDescriptorBinaryForm.Length);
secAttrs.pSecurityDescriptor = pDest;
}
SafeWaitHandle mutexHandle = null;
bool newMutex = false;
RuntimeHelpers.CleanupCode backoutCode = new RuntimeHelpers.CleanupCode(this.MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(mutexHandle, false);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(delegate (object userData) {
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 (((name != null) && (name.Length != 0)) && (6 == errorCode))
{
throw new WaitHandleCannotBeOpenedException(Environment.GetResourceString("Threading.WaitHandleCannotBeOpenedException_InvalidHandle", new object[] { name }));
}
__Error.WinIOError(errorCode, name);
}
newMutex = errorCode != 0xb7;
this.SetHandleInternal(mutexHandle);
this.hasThreadAffinity = true;
}, backoutCode, cleanupInfo);
createdNew = newMutex;
}
internal MutexTryCodeHelper(bool initiallyOwned, MutexCleanupInfo cleanupInfo, String name, Win32Native.SECURITY_ATTRIBUTES secAttrs, Mutex mutex)
{
m_initiallyOwned = initiallyOwned;
m_cleanupInfo = cleanupInfo;
m_name = name;
m_secAttrs = secAttrs;
m_mutex = mutex;
}
internal MutexTryCodeHelper(bool initiallyOwned, MutexCleanupInfo cleanupInfo, String name, Win32Native.SECURITY_ATTRIBUTES secAttrs, Mutex mutex)
{
Debug.Assert(name == null || name.Length != 0);
m_initiallyOwned = initiallyOwned;
m_cleanupInfo = cleanupInfo;
m_name = name;
m_secAttrs = secAttrs;
m_mutex = mutex;
}
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 CreateMutexWithGuaranteedCleanup(bool initiallyOwned, String name, out bool createdNew, Win32Native.SECURITY_ATTRIBUTES secAttrs)
{
RuntimeHelpers.CleanupCode cleanupCode = new RuntimeHelpers.CleanupCode(MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(null, false);
MutexTryCodeHelper tryCodeHelper = new MutexTryCodeHelper(initiallyOwned, cleanupInfo, name, secAttrs, this);
RuntimeHelpers.TryCode tryCode = new RuntimeHelpers.TryCode(tryCodeHelper.MutexTryCode);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(
tryCode,
cleanupCode,
cleanupInfo);
createdNew = tryCodeHelper.m_newMutex;
}
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 CreateMutexWithGuaranteedCleanup(bool initiallyOwned, String name, out bool createdNew, Win32Native.SECURITY_ATTRIBUTES secAttrs)
{
#if FEATURE_LEGACYNETCF
if (CompatibilitySwitches.IsAppEarlierThanWindowsPhone8)
{
name = WinCEObjectNameQuirk(name);
}
#endif
RuntimeHelpers.CleanupCode cleanupCode = new RuntimeHelpers.CleanupCode(MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(null, false);
MutexTryCodeHelper tryCodeHelper = new MutexTryCodeHelper(initiallyOwned, cleanupInfo, name, secAttrs, this);
RuntimeHelpers.TryCode tryCode = new RuntimeHelpers.TryCode(tryCodeHelper.MutexTryCode);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(
tryCode,
cleanupCode,
cleanupInfo);
createdNew = tryCodeHelper.m_newMutex;
}
private void MutexCleanupCode(object userData, bool exceptionThrown)
{
MutexCleanupInfo info = (MutexCleanupInfo)userData;
if (!base.hasThreadAffinity)
{
if ((info.mutexHandle != null) && !info.mutexHandle.IsInvalid)
{
if (info.inCriticalRegion)
{
Win32Native.ReleaseMutex(info.mutexHandle);
}
info.mutexHandle.Dispose();
}
if (info.inCriticalRegion)
{
Thread.EndCriticalRegion();
Thread.EndThreadAffinity();
}
}
}
public unsafe Mutex(bool initiallyOwned, string name, out bool createdNew, MutexSecurity mutexSecurity)
{
if ((name != null) && (260 < name.Length))
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", new object[] { name }));
}
Win32Native.SECURITY_ATTRIBUTES structure = null;
if (mutexSecurity != null)
{
structure = new Win32Native.SECURITY_ATTRIBUTES {
nLength = Marshal.SizeOf(structure)
};
byte[] securityDescriptorBinaryForm = mutexSecurity.GetSecurityDescriptorBinaryForm();
byte* pDest = stackalloc byte[(IntPtr) securityDescriptorBinaryForm.Length];
Buffer.memcpy(securityDescriptorBinaryForm, 0, pDest, 0, securityDescriptorBinaryForm.Length);
structure.pSecurityDescriptor = pDest;
}
RuntimeHelpers.CleanupCode backoutCode = new RuntimeHelpers.CleanupCode(this.MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(null, false);
MutexTryCodeHelper helper = new MutexTryCodeHelper(initiallyOwned, cleanupInfo, name, structure, this);
RuntimeHelpers.TryCode code = new RuntimeHelpers.TryCode(helper.MutexTryCode);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(code, backoutCode, cleanupInfo);
createdNew = helper.m_newMutex;
}
internal MutexTryCodeHelper(bool initiallyOwned,MutexCleanupInfo cleanupInfo, String name, Win32Native.SECURITY_ATTRIBUTES secAttrs, Mutex mutex)
{
m_initiallyOwned = initiallyOwned;
m_cleanupInfo = cleanupInfo;
m_name = name;
m_secAttrs = secAttrs;
m_mutex = mutex;
}
internal MutexTryCodeHelper(bool initiallyOwned,MutexCleanupInfo cleanupInfo, String name, Win32Native.SECURITY_ATTRIBUTES secAttrs, Mutex mutex)
{
Contract.Assert(name == null || name.Length != 0);
m_initiallyOwned = initiallyOwned;
m_cleanupInfo = cleanupInfo;
m_name = name;
m_secAttrs = secAttrs;
m_mutex = mutex;
}
internal void CreateMutexWithGuaranteedCleanup(bool initiallyOwned, String name, out bool createdNew, Win32Native.SECURITY_ATTRIBUTES secAttrs)
{
RuntimeHelpers.CleanupCode cleanupCode = new RuntimeHelpers.CleanupCode(MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(null, false);
MutexTryCodeHelper tryCodeHelper = new MutexTryCodeHelper(initiallyOwned, cleanupInfo, name, secAttrs, this);
RuntimeHelpers.TryCode tryCode = new RuntimeHelpers.TryCode(tryCodeHelper.MutexTryCode);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(
tryCode,
cleanupCode,
cleanupInfo);
createdNew = tryCodeHelper.m_newMutex;
}
internal void CreateMutexWithGuaranteedCleanup(bool initiallyOwned, String name, out bool createdNew, Win32Native.SECURITY_ATTRIBUTES secAttrs)
{
#if FEATURE_LEGACYNETCF
if (CompatibilitySwitches.IsAppEarlierThanWindowsPhone8)
name = WinCEObjectNameQuirk(name);
#endif
RuntimeHelpers.CleanupCode cleanupCode = new RuntimeHelpers.CleanupCode(MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(null, false);
MutexTryCodeHelper tryCodeHelper = new MutexTryCodeHelper(initiallyOwned, cleanupInfo, name, secAttrs, this);
RuntimeHelpers.TryCode tryCode = new RuntimeHelpers.TryCode(tryCodeHelper.MutexTryCode);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(
tryCode,
cleanupCode,
cleanupInfo);
createdNew = tryCodeHelper.m_newMutex;
}
public unsafe Mutex(bool initiallyOwned, String name, out bool createdNew, MutexSecurity mutexSecurity)
{
if(null != name && System.IO.Path.MAX_PATH < name.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong",name));
}
Contract.EndContractBlock();
Win32Native.SECURITY_ATTRIBUTES secAttrs = null;
#if !FEATURE_PAL && FEATURE_MACL
// For ACL's, get the security descriptor from the MutexSecurity.
if (mutexSecurity != null) {
secAttrs = new Win32Native.SECURITY_ATTRIBUTES();
secAttrs.nLength = (int)Marshal.SizeOf(secAttrs);
byte[] sd = mutexSecurity.GetSecurityDescriptorBinaryForm();
byte* pSecDescriptor = stackalloc byte[sd.Length];
Buffer.memcpy(sd, 0, pSecDescriptor, 0, sd.Length);
secAttrs.pSecurityDescriptor = pSecDescriptor;
}
#endif
RuntimeHelpers.CleanupCode cleanupCode = new RuntimeHelpers.CleanupCode(MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(null, false);
MutexTryCodeHelper tryCodeHelper = new MutexTryCodeHelper(initiallyOwned, cleanupInfo, name, secAttrs, this);
RuntimeHelpers.TryCode tryCode = new RuntimeHelpers.TryCode(tryCodeHelper.MutexTryCode);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(
tryCode,
cleanupCode,
cleanupInfo);
createdNew = tryCodeHelper.m_newMutex;
}
public unsafe Mutex(bool initiallyOwned, string name, out bool createdNew, MutexSecurity mutexSecurity)
{
if ((name != null) && (260 < name.Length))
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", new object[] { name }));
}
Win32Native.SECURITY_ATTRIBUTES secAttrs = null;
if (mutexSecurity != null)
{
secAttrs = new Win32Native.SECURITY_ATTRIBUTES {
nLength = Marshal.SizeOf(secAttrs)
};
byte[] securityDescriptorBinaryForm = mutexSecurity.GetSecurityDescriptorBinaryForm();
byte * pDest = stackalloc byte[1 * securityDescriptorBinaryForm.Length];
Buffer.memcpy(securityDescriptorBinaryForm, 0, pDest, 0, securityDescriptorBinaryForm.Length);
secAttrs.pSecurityDescriptor = pDest;
}
SafeWaitHandle mutexHandle = null;
bool newMutex = false;
RuntimeHelpers.CleanupCode backoutCode = new RuntimeHelpers.CleanupCode(this.MutexCleanupCode);
MutexCleanupInfo cleanupInfo = new MutexCleanupInfo(mutexHandle, false);
RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(delegate(object userData) {
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 (((name != null) && (name.Length != 0)) && (6 == errorCode))
{
throw new WaitHandleCannotBeOpenedException(Environment.GetResourceString("Threading.WaitHandleCannotBeOpenedException_InvalidHandle", new object[] { name }));
}
__Error.WinIOError(errorCode, name);
}
newMutex = errorCode != 0xb7;
this.SetHandleInternal(mutexHandle);
this.hasThreadAffinity = true;
}, backoutCode, cleanupInfo);
createdNew = newMutex;
}
