pub fn alloc_shared(size: usize) -> Result<*mut u8, Error>Expand description
Allocate shared memory visible across fork() boundaries.
Returns a pointer to size bytes of zeroed memory backed by
MAP_SHARED | MAP_ANONYMOUS. The memory is readable and writable
by both parent and child processes after fork().
ยงErrors
Returns an error if mmap fails (e.g., insufficient memory).