t is a contiguous region of memory

chunk is an offset into a region of memory allocated from some region t. It is of a length set when the region t associated with it was initialised.

No_space is raised when an allocation request cannot be satisfied.

init ~block_size buf initialises a region from the buffer buf, carving it into length(buf) / block_size chunks of block_size bytes each. Any trailing bytes that do not fill a whole chunk are unused.

• raises Invalid_argument

  if block_size is not positive

alloc t will allocate a single chuck of length block_size from the region t.

free chunk will return the memory chunk back to the region t where it can be reallocated.

length chunk is the block size.

to_offset chunk will convert the chunk into an integer offset in its associated region. This can be used in IO calls involving that memory.

to_cstruct chunk is a cstruct of chunk's slice of the region. Note that this is a zero-copy view into the underlying region t and so chunk should not be freed until this cstruct is no longer used.

• parameter len

  Use only the first len bytes of chunk.

to_bigstring is like to_cstruct, but creates a Bigarray. Note that this is a zero-copy view into the underlying region t and so chunk should not be freed until this Bigarray reference is no longer used.

• parameter len

  Use only the first len bytes of chunk.

to_string ?len chunk will return a copy of chunk as an OCaml string.

• parameter len

  Use only the first len bytes of chunk.

avail t is the number of free chunks of memory remaining in the region.