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#include <sys/mman.h>
The <sys/mman.h> header supports the following options:
the Memory Mapped Files option
the Shared Memory Objects option
the Process Memory Locking option
the Memory Protection option
the Synchronized Input and Output option
For Memory Mapped Files and Shared Memory Objects options, the following protection options are defined:
PROT_READ
Page can be read.
PROT_WRITE
Page can be written.
PROT_EXEC
Page can be executed.
PROT_NONE
Page cannot be accessed.
The following flag options are defined:
MAP_SHARED
Share changes.
MAP_PRIVATE
Changes are private.
MAP_FIXED
Interpret addr exactly.
The flags immediately following are defined for msync(). See msync(3C).
MS_ASYNC
Perform asynchronous writes.
MS_SYNC
Perform synchronous writes.
MS_INVALIDATE
Invalidate mappings.
The symbolic constants immediately following are defined for the mlockall() function. See mlockall(3C).
MCL_CURRENT
Lock currently mapped pages.
MCL_FUTURE
Lock pages that become mapped.
The symbolic constant MAP_FAILED is defined to indicate a failure from the mmap() function. See mmap(2).
The mode_t, off_t, and size_t types are be defined as described in <sys/types.h>. See types(3HEAD).
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Interface Stability | Committed |
| Standard | See standards(5). |
mmap(2), mprotect(2), munmap(2), madvise(3C), mlock(3C), mlockall(3C), msync(3C), shm_open(3C), shm_unlink(3C), attributes(5), standards(5)