Interprocess Synchronization Objects
The interprocess synchronization objects (event, mutex, semaphore, and timer)
are securable. Critical section objects, which are per-process synchronization
objects, are not securable.
Event Objects
The valid
access rights for event objects are STANDARD_RIGHTS_REQUIRED and the rights given in the
following table.
Value
| Meaning
|
EVENT_ALL_ACCESS
| Specifies all possible access rights for an event object.
|
EVENT_MODIFY_STATE
| Specifies modify state (release) access.
|
SYNCHRONIZE
| Specifies synchronization (wait or release) access.
|
The handle returned by the
CreateEvent function has EVENT_ALL_ACCESS access to the semaphore object.
Mutex Objects
The valid
access rights for mutex objects are STANDARD_RIGHTS_REQUIRED and the rights given in the
following table.
Value
| Meaning
|
MUTEX_ALL_ACCESS
| Specifies all possible access rights for a mutex object.
|
MUTEX_MODIFY_STATE
| Specifies modify state (release) access.
|
SYNCHRONIZE
| Specifies synchronization (wait or release) access.
|
The handle returned by the
CreateMutex function has MUTEX_ALL_ACCESS access to the mutex object.
Semaphore Objects
The valid
access rights for semaphore objects are STANDARD_RIGHTS_REQUIRED and the rights given in
the following table.
Value
| Meaning
|
SEMAPHORE_ALL_ACCESS
| Specifies all possible access rights for a semaphore object.
|
SEMAPHORE_MODIFY_STATE
| Specifies modify state (release) access.
|
SYNCHRONIZE
| Specifies synchronization (wait) access.
|
The handle returned by the
CreateSemaphore function has SEMAPHORE_ALL_ACCESS access to the semaphore object.
Timer Objects
The valid
access rights for timer objects are STANDARD_RIGHTS_REQUIRED and the rights given in the
following table.
Value
| Meaning
|
TIMER_ALL_ACCESS
| Specifies all possible access rights for a timer object.
|
TIMER_MODIFY_STATE
| Specifies modify state (release) access.
|
SYNCHRONIZE
| Specifies synchronization (wait or release) access.
|
The handle returned by the
CreateWaitableTimer function has TIMER_ALL_ACCESS access to the timer object.
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