#include <sys/types.h> int mincore(caddr_t addr, size_t len, char *vec);
The mincore() function determines the residency of the memory pages in the address space covered by mappings in the range [addr, addr + len]. The status is returned as a character-per-page in the character array referenced by *vec (which the system assumes to be large enough to encompass all the pages in the address range). The least significant bit of each character is set to 1 to indicate that the referenced page is in primary memory, and to 0 to indicate that it is not. The settings of other bits in each character are undefined and may contain other information in future implementations.
Because the status of a page can change between the time mincore() checks and returns the information, returned information might be outdated. Only locked pages are guaranteed to remain in memory; see mlock(3C).
Upon successful completion, mincore() returns 0. Otherwise, −1 is returned and errno is set to indicate the error.
The mincore() function will fail if:
|August 12, 1990||OmniOS|