|
private CreateEvent_internal ( bool manual, bool initial, string name, bool &created ) : |
||
| manual | bool | |
| initial | bool | |
| name | string | |
| created | bool | |
| return | ||
public EventWaitHandle(bool initialState, EventResetMode mode)
{
bool created;
bool manual = IsManualReset(mode);
Handle = NativeEventCalls.CreateEvent_internal(manual, initialState, null, out created);
}
public EventWaitHandle(bool initialState, EventResetMode mode,
string name, out bool createdNew)
{
bool manual = IsManualReset(mode);
Handle = NativeEventCalls.CreateEvent_internal(manual, initialState, name, out createdNew);
}
public EventWaitHandle(bool initialState, EventResetMode mode,
string name)
{
bool created;
Handle = NativeEventCalls.CreateEvent_internal((mode == EventResetMode.ManualReset), initialState, name, out created);
}
/// <summary>Initializes a new instance of the <see cref="T:System.Threading.EventWaitHandle" /> class, specifying whether the wait handle is initially signaled if created as a result of this call, whether it resets automatically or manually, and the name of a system synchronization event.</summary>
/// <param name="initialState">true to set the initial state to signaled if the named event is created as a result of this call; false to set it to nonsignaled.</param>
/// <param name="mode">One of the <see cref="T:System.Threading.EventResetMode" /> values that determines whether the event resets automatically or manually.</param>
/// <param name="name">The name of a system-wide synchronization event.</param>
/// <exception cref="T:System.IO.IOException">A Win32 error occurred.</exception>
/// <exception cref="T:System.UnauthorizedAccessException">The named event exists and has access control security, but the user does not have <see cref="F:System.Security.AccessControl.EventWaitHandleRights.FullControl" />.</exception>
/// <exception cref="T:System.Threading.WaitHandleCannotBeOpenedException">The named event cannot be created, perhaps because a wait handle of a different type has the same name.</exception>
/// <exception cref="T:System.ArgumentException">
/// <paramref name="name" /> is longer than 260 characters.</exception>
public EventWaitHandle(bool initialState, EventResetMode mode, string name)
{
bool manual = this.IsManualReset(mode);
bool flag;
this.Handle = NativeEventCalls.CreateEvent_internal(manual, initialState, name, out flag);
}
public EventWaitHandle(bool initialState, EventResetMode mode, string name)
{
if (null != name && System.IO.Path.MAX_PATH < name.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", name));
}
Contract.EndContractBlock();
SafeWaitHandle _handle = null;
#if MONO
int errorCode;
#endif
switch (mode)
{
case EventResetMode.ManualReset:
#if MONO
_handle = new SafeWaitHandle(NativeEventCalls.CreateEvent_internal(true, initialState, name, out errorCode), true);
#else
_handle = Win32Native.CreateEvent(null, true, initialState, name);
#endif
break;
case EventResetMode.AutoReset:
#if MONO
_handle = new SafeWaitHandle(NativeEventCalls.CreateEvent_internal(false, initialState, name, out errorCode), true);
#else
_handle = Win32Native.CreateEvent(null, false, initialState, name);
#endif
break;
default:
throw new ArgumentException(Environment.GetResourceString("Argument_InvalidFlag", name));
}
;
if (_handle.IsInvalid)
{
#if !MONO
int errorCode = Marshal.GetLastWin32Error();
#endif
_handle.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);
}
SetHandleInternal(_handle);
}
public unsafe EventWaitHandle(bool initialState, EventResetMode mode, string name, out bool createdNew, EventWaitHandleSecurity eventSecurity)
{
if (null != name && System.IO.Path.MAX_PATH < name.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", name));
}
Contract.EndContractBlock();
#if !MONO
Win32Native.SECURITY_ATTRIBUTES secAttrs = null;
#if FEATURE_MACL
// For ACL's, get the security descriptor from the EventWaitHandleSecurity.
if (eventSecurity != null)
{
secAttrs = new Win32Native.SECURITY_ATTRIBUTES();
secAttrs.nLength = (int)Marshal.SizeOf(secAttrs);
byte[] sd = eventSecurity.GetSecurityDescriptorBinaryForm();
byte * pSecDescriptor = stackalloc byte[sd.Length];
Buffer.Memcpy(pSecDescriptor, 0, sd, 0, sd.Length);
secAttrs.pSecurityDescriptor = pSecDescriptor;
}
#endif
#endif
SafeWaitHandle _handle = null;
Boolean isManualReset;
switch (mode)
{
case EventResetMode.ManualReset:
isManualReset = true;
break;
case EventResetMode.AutoReset:
isManualReset = false;
break;
default:
throw new ArgumentException(Environment.GetResourceString("Argument_InvalidFlag", name));
}
;
#if MONO
int errorCode;
_handle = new SafeWaitHandle(NativeEventCalls.CreateEvent_internal(isManualReset, initialState, name, out errorCode), true);
#else
_handle = Win32Native.CreateEvent(secAttrs, isManualReset, initialState, name);
int errorCode = Marshal.GetLastWin32Error();
#endif
if (_handle.IsInvalid)
{
_handle.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);
}
createdNew = errorCode != Win32Native.ERROR_ALREADY_EXISTS;
SetHandleInternal(_handle);
}
public ManualResetEvent(bool initialState)
{
bool created;
Handle = NativeEventCalls.CreateEvent_internal(true, initialState, null, out created);
}
public EventWaitHandle(bool initialState, EventResetMode mode,
string name, out bool createdNew,
EventWaitHandleSecurity eventSecurity)
{
Handle = NativeEventCalls.CreateEvent_internal((mode == EventResetMode.ManualReset), initialState, name, out createdNew);
}
public AutoResetEvent(bool initialState)
{
bool created;
Handle = NativeEventCalls.CreateEvent_internal(false, initialState, null, out created);
}
