munlock()
QNX SDP8.0C Library ReferenceAPIDeveloper
Unlock the address space of a process
Synopsis:
#include <sys/mman.h>
int munlock(const void * addr,
size_t len);
Arguments:
- addr
- The starting address for the range of process address space.
- len
- The amount of memory to unlock, in bytes.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
Note:
In this QNX OS release, all memory is locked
for the entire duration of the process, so this function does nothing.
The munlock() function unlocks the whole pages containing any part of the calling process's address space starting at address addr and continuing for len bytes, regardless of how many times mlock() has been called by the process for any of the pages in the specified range.
Returns:
In this release, this function always returns 0 (success).
Classification:
| Safety: | |
|---|---|
| Cancellation point | No |
| Signal handler | Yes |
| Thread | Yes |
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