function get doesnt set shm_size and always returns 1024 array

[enseitankado]

SHM_arr = shm.create(4, 'Uint8Array', SHM_SEGMET_KEY);
SHM_arr[0] = Math.floor(Math.random() * 255);
SHM_arr[1] = Math.floor(Math.random() * 255);
node.log(SHM_arr);
SHM_arr = shm.get(SHM_SEGMET_KEY, 'Uint8Array');
node.log(SHM_arr);

Outputs:

16 Jun 05:38:13 - [info] [ss963-driver:4a2c9bf7.0a86dc] 114,50,0,0
16 Jun 05:38:13 - [info] [ss963-driver:4a2c9bf7.0a86dc] 114,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0

There are the functions below. In "function create", shm.get sets the shm_size but "function get" doesnt so returns 1024 bytes length array as seen above.

/**

• Create shared memory segment
• @param {int} count - number of elements
• @param {string} typeKey - see keys of BufferType
• @param {int/null} key - integer key of shared memory segment, or null to autogenerate
• @return {mixed/null} shared memory buffer/array object, or null on error
• Class depends on param typeKey: Buffer or descendant of TypedArray
• Return object has property 'key' - integer key of created shared memory segment
  /
  function create(count, typeKey /= 'Buffer'/, key /= null*/) {
  if (typeKey === undefined)
  typeKey = 'Buffer';
  if (key === undefined)
  key = null;
  if (BufferType[typeKey] === undefined)
  throw new Error("Unknown type key " + typeKey);
  if (key !== null) {
  if (!(Number.isSafeInteger(key) && key >= keyMin && key <= keyMax))
  throw new RangeError('Shm key should be ' + keyMin + ' .. ' + keyMax);
  }
  var type = BufferType[typeKey];
  //var size1 = BufferTypeSizeof[typeKey];
  //var size = size1 * count;
  if (!(Number.isSafeInteger(count) && count >= lengthMin && count <= lengthMax))
  throw new RangeError('Count should be ' + lengthMin + ' .. ' + lengthMax);
  let res;
  if (key) {
  res = shm.get(key, count, shm.IPC_CREAT|shm.IPC_EXCL|perm, 0, type);
  } else {
  do {
  key = _keyGen();
  res = shm.get(key, count, shm.IPC_CREAT|shm.IPC_EXCL|perm, 0, type);
  } while(!res);
  }
  if (res) {
  res.key = key;
  }
  return res;
  }

/**

• Get shared memory segment
• @param {int} key - integer key of shared memory segment
• @param {string} typeKey - see keys of BufferType
• @return {mixed/null} shared memory buffer/array object, see create(), or null on error
  /
  function get(key, typeKey /= 'Buffer'*/) {
  if (typeKey === undefined)
  typeKey = 'Buffer';
  if (BufferType[typeKey] === undefined)
  throw new Error("Unknown type key " + typeKey);
  var type = BufferType[typeKey];
  if (!(Number.isSafeInteger(key) && key >= keyMin && key <= keyMax))
  throw new RangeError('Shm key should be ' + keyMin + ' .. ' + keyMax);
  let res = shm.get(key, 0, 0, 0, type);
  if (res) {
  res.key = key;
  }
  return res;
  }