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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| kernel32.lib
| Header File
| winbase.h
| Unicode
| No
| Platform Notes
| None
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LeaveCriticalSection
The LeaveCriticalSection function releases ownership of the specified critical section object.
VOID LeaveCriticalSection(
LPCRITICAL_SECTION lpCriticalSection
| // address of critical section object
| );
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Parameters
lpCriticalSection
Points to the critical section object.
Return Values
This function does not return a value.
Remarks
The threads of a single process can use a critical-section object for
mutual-exclusion synchronization. The process is responsible for allocating the memory
used by a critical-section object, which it can do by declaring a variable of
type CRITICAL_SECTION. Before using a critical section, some thread of the
process must call the InitializeCriticalSection function to initialize the object.
A thread uses the EnterCriticalSection or TryEnterCriticalSection function to acquire ownership of a critical section object. To release its
ownership, the thread must call LeaveCriticalSection once for each time that it entered the critical section.
If a thread calls LeaveCriticalSection when it does not have ownership of the specified critical section object, an
error occurs that may cause another thread using EnterCriticalSection to wait indefinitely.
Any thread of the process can use the DeleteCriticalSection function to release the system resources that were allocated when the
critical section object was initialized. After this function has been called, the
critical section object can no longer be used for synchronization.
See Also
DeleteCriticalSection, EnterCriticalSection, InitializeCriticalSection, TryEnterCriticalSection
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Unix Manual Pages
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