The memory mapping subroutines operate on memory regions that have been mapped with the mmap subroutine. These subroutines enable you to:
You do not need to specify any special flag to the compiler to use the memory functions. However, you must include the header file for some of these subroutines. If the subroutine description specifies a header file, you can include it with the following statement:
#include <HeaderFile.h>
The following memory mapping services are provided:
| madvise | Advises the system of a process' expected paging behavior. |
| mincore | Determines residency of memory pages. |
| mmap | Maps an object file onto virtual memory. |
| mprotect | Modifies access protections of memory mapping. |
| msync | Synchronizes a mapped file with its underlying storage device. |
| munmap | Unmaps a mapped memory region. |