#include <sys/mman.h> int munmap(void *addr, size_t len);
The munmap() function removes the mappings for pages in the range [addr, addr + len), rounding the len argument up to the next multiple of the page size as returned by sysconf(3C). If addr is not the address of a mapping established by a prior call to mmap(2), the behavior is undefined. After a successful call to munmap() and before any subsequent mapping of the unmapped pages, further references to these pages will result in the delivery of a SIGBUS or SIGSEGV signal to the process.
The mmap(2) function often performs an implicit munmap().
Upon successful completion, munmap() returns 0; otherwise, it returns −1 and sets errno to indicate an error.
The munmap() function will fail if:
See attributes(7) for descriptions of the following attributes:
|ATTRIBUTE TYPE||ATTRIBUTE VALUE|
|January 5, 1998||OmniOS|