# ---------------------------------------------------------------------------
# - SYS0004.als                                                             -
# - afnix:sys module test unit                                              -
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# - copyright (c) 1999-2007 amaury darsch                                   -
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# @info   complex test unit
# @author amaury darsch

# get the module
interp:library "afnix-sys"

# shared vector of threads descriptors
const thr-group (Vector)

# this procedure waits until all threads in the group are finished
const wait-all nil (for (thr) (thr-group) (thr:wait))

# this procedure initialize a matrix with random numbers
# the matrix is a square one with its size as an argument
const init-matrix (n) {
  trans i (Integer 0)
  const m (Vector)
  do {
    trans v (m:append (Vector))
    trans j (Integer)
    do {
      v:append (afnix:sys:get-random)
    } (< (j:++) n)
  } (< (i:++) n)
  eval m
}

# this procedure multiply one line with one column
const mult-line-column (u v) {
  assert (u:length) (v:length)
  trans result 0
  for (x y) (u v) (result:+= (* x y))
  eval result
}

# this procedure multiply two vectors assuming one is a line and one is
# a column coming from the matrix
const mult-matrix (mx my) {
  for (lv) (mx) {
    assert true (vector-p lv)
    for (cv) (my) {
      assert true (vector-p cv)
      thr-group:append (launch (mult-line-column lv cv))
    }
  }
}

# set a simple size (3)
const n 3
mult-matrix (init-matrix n) (init-matrix n)

# wait for all threads to complete
wait-all

# make sure we have the right number
assert (* n n) (thr-group:length)