module Netmcore_matrix: sig .. end
Shared 2-dimensional arrays (matrices)
type ('e, 'h) sarray2
Arrays where the elements have type 'e and the header has
type 'h
type ('e, 'h) sarray2_descr
The marshallable descriptor of a shared matrix
val create : Netmcore.res_id ->
int -> 'e array array -> 'h -> ('e, 'h) sarray2
create pool_id n2 a h:
Creates a matrix by deeply copying a normal array a
and using the copy of h as header. In n2 one has
to pass the second dimension.
val make : Netmcore.res_id -> int -> int -> 'e -> 'h -> ('e, 'h) sarray2
make pool_id n1 n2 x h:
Creates a matrix of the passed number of elements (n1 * n2),
copies the element x, and initializes each element of the new array
with the single copy of x. The value h is copied and used
as header.
val init : Netmcore.res_id ->
int -> int -> (int -> int -> 'e) -> 'h -> ('e, 'h) sarray2
init pool_id n1 n2 f h:
Creates a matrix of the passed number of elements (n1 * n2),
and for getting the element at position k the function
f k is run, and the copy of the result is written to the
position. The header is set to the copy of h.
val set : ('e, 'a) sarray2 -> int -> int -> 'e -> unit
set sa k1 k2 x: Sets the (k1,k2)-th element of the matrix sa to a
deep copy of x.
val get_ro : ('e, 'a) sarray2 -> int -> int -> 'e
get_ro sa k1 k2: Gets the (k1,k2)-th element of the matrix sa.
Note that there is no guarantee that this value still exists if
it is returned, and a parallely running set changes this element.
If such values are accessed the program may crash!
val get_p : ('e, 'b) sarray2 -> int -> int -> ('e -> 'a) -> 'a
get_p sa k1 k2 f: Gets the (k1,k2)-th element of the matrix sa
and call f with this element, and returns the result of f.
During the execution of f the requested element cannot be
garbage collected.
val get_c : ('e, 'a) sarray2 -> int -> int -> 'e
get_c sa k1 k2: Gets a copy of the (k1,k2)-th element of the matrix
sæ
val dim : ('a, 'b) sarray2 -> int * int
Returns the dimenstions
: ('a, 'h) sarray2 -> 'h
Returns the header
val deref : ('e, 'a) sarray2 -> 'e array array
Returns the raw array in shared memory for unprotected access
val heap : ('a, 'b) sarray2 -> Obj.t Netmcore_heap.heap
Return the backing heap structure
val descr_of_sarray2 : ('e, 'h) sarray2 -> ('e, 'h) sarray2_descr
Returns the descriptor
val sarray2_of_descr : Netmcore.res_id ->
('e, 'h) sarray2_descr -> ('e, 'h) sarray2
Look up the matrix for this descriptor
