Get the size of the shared memory region.
Available since API level 26.
\param fd file descriptor of the shared memory region \return size in bytes; 0 if fd is not a valid shared memory file descriptor.
See Implementation
Get the size of the shared memory region.
Available since API level 26.
\param fd file descriptor of the shared memory region \return size in bytes; 0 if fd is not a valid shared memory file descriptor.