MirOS Manual: minherit(2)

MINHERIT(2)                BSD Programmer's Manual                 MINHERIT(2)


     minherit - control the inheritance of pages


     #include <sys/types.h>
     #include <sys/mman.h>

     minherit(void *addr, size_t len, int inherit);


     The minherit() system call changes the specified pages to have the inher-
     itance characteristic inherit, which can be set to MAP_INHERIT_NONE,
     MAP_INHERIT_COPY, or MAP_INHERIT_SHARE. Not all implementations will
     guarantee that the inheritance characteristic can be set on a page basis;
     the granularity of changes may be as large as an entire region.


     The minherit() function returns the value 0 if successful; otherwise the
     value -1 is returned and the global variable errno is set to indicate the


     The minherit() system call will fail if:

     [EINVAL]      The virtual address range specified by the addr and len ar-
                   guments is not valid.

     [EACCES]      The flags specified by the inherit argument were not valid
                   for the pages specified by the addr and len arguments.


     madvise(2), mincore(2), mprotect(2), msync(2), munmap(2)


     The minherit() function first appeared in OpenBSD 2.0.

MirOS BSD #10-current            June 9, 1993                                1

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