public GlobalReaderWriterLock(string nameOfThisLock)
{
_hatName = nameOfThisLock;
// we need to make two native sync objects, a mutex and a semaphore
// that are global so every process and user on the system can share them as long as they agree on the lock's name
string mutexId = string.Format("Global\\Mut_{0}", _hatName);
string semaphoreId = string.Format("Global\\Sem_{0}", _hatName);
bool iDontCareWhetherItsNew;
{
MutexAccessRule allowEveryoneRule = new MutexAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), MutexRights.FullControl, AccessControlType.Allow);
MutexSecurity securitySettings = new MutexSecurity();
securitySettings.AddAccessRule(allowEveryoneRule);
_holdTheHat = new Mutex(false, mutexId, out iDontCareWhetherItsNew, securitySettings);
}
{
SemaphoreAccessRule allowEveryoneRule = new SemaphoreAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), SemaphoreRights.FullControl, AccessControlType.Allow);
SemaphoreSecurity securitySettings = new SemaphoreSecurity();
securitySettings.AddAccessRule(allowEveryoneRule);
_chipsInTheHat = new Semaphore(READER_CHIPS, READER_CHIPS, semaphoreId, out iDontCareWhetherItsNew, securitySettings);
}
}
public void ResetAccessRule(SemaphoreAccessRule rule)
{
base.ResetAccessRule(rule);
}
public void AddAccessRule(SemaphoreAccessRule rule)
{
base.AddAccessRule(rule);
}
public void SetAccessRule(SemaphoreAccessRule rule)
{
SetAccessRule((AccessRule)rule);
}
public void RemoveAccessRuleSpecific(SemaphoreAccessRule rule)
{
RemoveAccessRuleSpecific((AccessRule)rule);
}
public bool RemoveAccessRule(SemaphoreAccessRule rule)
{
return(RemoveAccessRule((AccessRule)rule));
}
public bool RemoveAccessRule(SemaphoreAccessRule rule)
{
throw new NotImplementedException();
}
public void ResetAccessRule(SemaphoreAccessRule rule)
{
base.ResetAccessRule(rule);
}
public void AddAccessRule(SemaphoreAccessRule rule)
{
}
/// <summary>
/// Initializes this instance.
/// </summary>
/// <returns></returns>
public static bool Initialize()
{
bool bResult = false;
if (CurrentElement == null)
{
// lock
lock (typeof(CompanyWebSiteSemaphore))
{
if (CurrentElement == null)
{
int maxPortalsCount = License.PortalsCount;
Semaphore semaphore = null;
if (maxPortalsCount > 0)
{
// Step 1. Try open Semaphore
try
{
semaphore = Semaphore.OpenExisting(Uid);
}
catch (WaitHandleCannotBeOpenedException)
{
// The named semaphore does not exist.
SemaphoreSecurity security = new SemaphoreSecurity();
// OZ 2009-03-10/Fix: System.Security.Principal.IdentityNotMappedException
//SemaphoreAccessRule accessRule = new SemaphoreAccessRule("Everyone", SemaphoreRights.TakeOwnership | SemaphoreRights.FullControl, AccessControlType.Allow);
SecurityIdentifier everyoneSid = new SecurityIdentifier(WellKnownSidType.WorldSid, null);
SemaphoreAccessRule accessRule = new SemaphoreAccessRule(everyoneSid, SemaphoreRights.TakeOwnership | SemaphoreRights.FullControl, AccessControlType.Allow);
security.AddAccessRule(accessRule);
bool createdNew;
semaphore = new Semaphore(maxPortalsCount, maxPortalsCount, Uid, out createdNew, security);
}
// Wait one with timeout
if (!semaphore.WaitOne(3000, false))
{
throw new LicenseRestrictionException("License.PortalsCount");
}
CurrentElement = new CompanyWebSiteSemaphore(semaphore);
}
else if (maxPortalsCount==-1)
{
// Unlimited
CurrentElement = new CompanyWebSiteSemaphore(null);
}
else
throw new LicenseRestrictionException("Wrong License.PortalsCount = " + maxPortalsCount.ToString());
bResult = true;
}
}
}
return bResult;
}
public void RemoveAccessRuleSpecific (SemaphoreAccessRule rule)
{
throw new NotImplementedException ();
}
public bool RemoveAccessRule (SemaphoreAccessRule rule)
{
throw new NotImplementedException ();
}
public void AddAccessRule (SemaphoreAccessRule rule)
{
throw new NotImplementedException ();
}
static void Main(string[] args)
{
if (args.Length > 0)
{
if (args[0].ToLower().Equals("start"))
{
ProcessStartInfo startInfo = new ProcessStartInfo("startup\\startuptask.exe");
startInfo.CreateNoWindow = true;
try
{
Process exeProcess = Process.Start(startInfo);
}
catch
{
}
return;
}
}
else
{
const string semaphoreName = "SemaphoreShutDown";
Semaphore sem = null;
bool doesNotExist = false;
// Attempt to open the named semaphore.
try
{
sem = Semaphore.OpenExisting(semaphoreName);
}
catch (WaitHandleCannotBeOpenedException)
{
doesNotExist = true;
}
if (doesNotExist)
{
// The semaphore does not exist, so create it.
//
// The value of this variable is set by the semaphore
// constructor. It is true if the named system semaphore was
// created, and false if the named semaphore already existed.
//
bool semaphoreWasCreated;
string user = "******";
SemaphoreSecurity semSec = new SemaphoreSecurity();
SemaphoreAccessRule rule = new SemaphoreAccessRule(user,
SemaphoreRights.Synchronize | SemaphoreRights.Modify,
AccessControlType.Allow);
semSec.AddAccessRule(rule);
// Create a Semaphore object
sem = new Semaphore(1, 1, semaphoreName,
out semaphoreWasCreated, semSec);
if (!semaphoreWasCreated)
return;
}
// Enter the semaphore, and hold it until the program
// exits.
//
try
{
sem.WaitOne();
sem.WaitOne();
ProcessStartInfo startInfo = new ProcessStartInfo("NET");
startInfo.Arguments = "STOP W3SVC";
startInfo.CreateNoWindow = false;
try
{
// Start the process with the info we specified.
// Call WaitForExit and then the using statement will close.
using (Process exeProcess = Process.Start(startInfo))
{
exeProcess.WaitForExit();
int exitCode = exeProcess.ExitCode;
}
}
catch
{
}
sem.Release();
}
catch
{
}
}
}
public void RemoveAccessRuleSpecific(SemaphoreAccessRule rule)
{
throw new NotImplementedException();
}
public void RemoveAccessRuleAll(SemaphoreAccessRule rule)
{
base.RemoveAccessRuleAll(rule);
}
public void AddAccessRule(SemaphoreAccessRule rule)
{
base.AddAccessRule(rule);
}
public bool RemoveAccessRule(SemaphoreAccessRule rule)
{
return(default(bool));
}
public void RemoveAccessRuleAll(SemaphoreAccessRule rule)
{
base.RemoveAccessRuleAll(rule);
}
public void SetAccessRule(SemaphoreAccessRule rule)
{
}
public void AddAccessRule(SemaphoreAccessRule rule)
{
AddAccessRule((AccessRule)rule);
}
public void AddAccessRule(SemaphoreAccessRule rule)
{
}
public void RemoveAccessRuleAll(SemaphoreAccessRule rule)
{
RemoveAccessRuleAll((AccessRule)rule);
}
public bool RemoveAccessRule(SemaphoreAccessRule rule)
{
return default(bool);
}
public void ResetAccessRule(SemaphoreAccessRule rule)
{
ResetAccessRule((AccessRule)rule);
}
public void SetAccessRule(SemaphoreAccessRule rule)
{
}
public static Semaphore GetNamedSemaphore(string name, int maximumCount = 10, int initialCount = -1)
{
if (string.IsNullOrWhiteSpace(name))
throw new ArgumentNullException("name", "Argument cannot be empty, null or white space.");
Semaphore namedSemaphore = null;
bool doesNotExist = false;
bool unauthorized = false;
if (initialCount < 0)
initialCount = maximumCount;
// Create a semaphore name that is specific to an object (e.g., a path and file name).
string semaphoreName = Cipher.GetPasswordHash(name.ToLower(), SemaphoreHash).Replace('\\', '-');
// Attempt to open the named semaphore
try
{
namedSemaphore = Semaphore.OpenExisting(semaphoreName);
}
catch (WaitHandleCannotBeOpenedException)
{
doesNotExist = true;
}
catch (UnauthorizedAccessException)
{
unauthorized = true;
}
// Mono Semaphore implementations do not include ability to change access rules
#if MONO
// If semaphore does not exist we create it
if (doesNotExist || unauthorized)
{
try
{
bool semaphoreWasCreated;
namedSemaphore = new Semaphore(initialCount, maximumCount, semaphoreName, out semaphoreWasCreated);
if (!semaphoreWasCreated)
throw new InvalidOperationException("Failed to create semaphore.");
}
catch (UnauthorizedAccessException ex)
{
throw new InvalidOperationException("Failed to create semaphore: " + ex.Message);
}
}
#else
// If semaphore does not exist we create it
if (doesNotExist)
{
try
{
SemaphoreSecurity security = new SemaphoreSecurity();
bool semaphoreWasCreated;
security.AddAccessRule(new SemaphoreAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), SemaphoreRights.FullControl, AccessControlType.Allow));
namedSemaphore = new Semaphore(initialCount, maximumCount, semaphoreName, out semaphoreWasCreated, security);
if (!semaphoreWasCreated)
throw new InvalidOperationException("Failed to create semaphore.");
}
catch (UnauthorizedAccessException)
{
SemaphoreSecurity security = new SemaphoreSecurity();
bool semaphoreWasCreated;
security.AddAccessRule(new SemaphoreAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), SemaphoreRights.Synchronize | SemaphoreRights.Modify, AccessControlType.Allow));
namedSemaphore = new Semaphore(initialCount, maximumCount, semaphoreName, out semaphoreWasCreated, security);
if (!semaphoreWasCreated)
throw new InvalidOperationException("Failed to create semaphore.");
}
}
else if (unauthorized)
{
namedSemaphore = Semaphore.OpenExisting(semaphoreName, SemaphoreRights.ReadPermissions | SemaphoreRights.ChangePermissions);
// Get the current ACL. This requires MutexRights.ReadPermission
SemaphoreSecurity security = new SemaphoreSecurity();
SemaphoreAccessRule rule = new SemaphoreAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), SemaphoreRights.FullControl, AccessControlType.Allow);
security.RemoveAccessRule(rule);
// Now grant specific user rights for less than full access
rule = new SemaphoreAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), SemaphoreRights.Synchronize | SemaphoreRights.Modify, AccessControlType.Allow);
security.AddAccessRule(rule);
// Update the ACL. This requires MutexRighs.ChangePermission.
namedSemaphore.SetAccessControl(security);
namedSemaphore = Semaphore.OpenExisting(semaphoreName);
}
#endif
return namedSemaphore;
}
public void AddAccessRule (SemaphoreAccessRule rule)
{
AddAccessRule ((AccessRule)rule);
}
public void SetAccessRule(SemaphoreAccessRule rule)
{
base.SetAccessRule(rule);
}
public bool RemoveAccessRule (SemaphoreAccessRule rule)
{
return RemoveAccessRule ((AccessRule)rule);
}
public bool RemoveAccessRule(SemaphoreAccessRule rule)
{
return base.RemoveAccessRule(rule);
}
public void RemoveAccessRuleAll (SemaphoreAccessRule rule)
{
RemoveAccessRuleAll ((AccessRule)rule);
}
public void RemoveAccessRuleSpecific(SemaphoreAccessRule rule)
{
base.RemoveAccessRuleSpecific(rule);
}
public void RemoveAccessRuleSpecific (SemaphoreAccessRule rule)
{
RemoveAccessRuleSpecific ((AccessRule)rule);
}
public void SetAccessRule(SemaphoreAccessRule rule)
{
base.SetAccessRule(rule);
}
public void ResetAccessRule (SemaphoreAccessRule rule)
{
ResetAccessRule ((AccessRule)rule);
}
public bool RemoveAccessRule(SemaphoreAccessRule rule)
{
return(base.RemoveAccessRule(rule));
}
public void SetAccessRule (SemaphoreAccessRule rule)
{
SetAccessRule ((AccessRule)rule);
}
public void RemoveAccessRuleSpecific(SemaphoreAccessRule rule)
{
base.RemoveAccessRuleSpecific(rule);
}
public void AddAccessRule(SemaphoreAccessRule rule)
{
throw new NotImplementedException();
}