unmap previously mapped addresses
#include <sys/mman.h> int munmap( void *addr, size_t len );
The munmap() function removes any mappings for pages in the address range starting at addr and continuing for len bytes, rounded up to the next multiple of the page size. Subsequent references to these pages cause a SIGSEGV signal to be set on the process.
If there are no mappings in the specified address range, then munmap() has no effect.
The addresses in the specified range are outside the range allowed for the address space of a process.
POSIX 1003.4
Safety: | |
---|---|
Interrupt handler | No |
Signal handler | Yes |
Thread | Yes |
errno, mmap(), mprotect(), shm_open(), shm_unlink()