Module: Iodine::Scheduler

Defined in:
ext/iodine/scheduler.c

Class Method Summary collapse

Class Method Details

.attach(r_fd, r_waittype, r_timeout) ⇒ Object 



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# File 'ext/iodine/scheduler.c', line 90

static VALUE iodine_scheduler_attach(VALUE self, VALUE r_fd, VALUE r_waittype, VALUE r_timeout) {
  Check_Type(r_fd, T_FIXNUM);
  int fd = FIX2INT(r_fd);

  Check_Type(r_waittype, T_FIXNUM);
  size_t waittype = FIX2UINT(r_waittype);

  size_t timeout;
  if (r_timeout != Qnil) {
    Check_Type(r_timeout, T_FIXNUM);
    timeout = FIX2UINT(r_timeout);
  }

  fio_set_non_block(fd);

  rb_need_block();
  VALUE block = IodineStore.add(rb_block_proc());

  scheduler_protocol_s *protocol = fio_malloc(sizeof(*protocol));
  FIO_ASSERT_ALLOC(protocol);

  if ((waittype & ATTACH_ON_READ_READY_CALLBACK) && (waittype & ATTACH_ON_WRITE_READY_CALLBACK)) {
    *protocol = (scheduler_protocol_s){
        .p.on_data = iodine_scheduler_task_perform,
        .p.on_ready = iodine_scheduler_task_perform,
        .p.on_close = iodine_scheduler_task_close,
        .p.ping = iodine_scheduler_task_timeout,
        .block = block,
    };
  } else if (waittype & ATTACH_ON_READ_READY_CALLBACK) {
    *protocol = (scheduler_protocol_s){
        .p.on_data = iodine_scheduler_task_perform,
        .p.on_ready = noop,
        .p.on_close = iodine_scheduler_task_close,
        .p.ping = iodine_scheduler_task_timeout,
        .block = block,
    };
  } else if (waittype & ATTACH_ON_WRITE_READY_CALLBACK) {
    *protocol = (scheduler_protocol_s){
        .p.on_data = noop,
        .p.on_ready = iodine_scheduler_task_perform,
        .p.on_close = iodine_scheduler_task_close,
        .p.ping = iodine_scheduler_task_timeout,
        .block = block,
    };
  }

  intptr_t uuid = fio_fd2uuid(fd);

  if (r_timeout == Qnil) {
    fio_timeout_set(uuid, 0);
  } else if (timeout) {
    fio_timeout_set(uuid, timeout);
  } else {
    // timeout was explicitly set to 0 - return right away
    protocol->p.on_ready = iodine_scheduler_task_deferred_not_ready;
  }

  fio_watch(uuid, (fio_protocol_s *)protocol);

  return LONG2NUM(uuid);
  (void)self;
}

.close ⇒ Object 



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# File 'ext/iodine/scheduler.c', line 201

static VALUE iodine_scheduler_close(VALUE self) {
  fio_defer_perform();
  while (fio_flush_all()) {}

  return Qtrue;
  (void)self;
}

.read(r_fd, r_length, r_offset) ⇒ Object 



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# File 'ext/iodine/scheduler.c', line 176

static VALUE iodine_scheduler_read(VALUE self, VALUE r_fd, VALUE r_length, VALUE r_offset) {
  Check_Type(r_fd, T_FIXNUM);
  int fd = FIX2INT(r_fd);

  Check_Type(r_length, T_FIXNUM);
  int length = FIX2INT(r_length);

  if (length == 0) {
    length = IO_MAX_READ;
  }

  intptr_t uuid = fio_fd2uuid(fd);
  char buffer[length];

  ssize_t len = fio_read_unsafe(uuid, &buffer, length);
  if (len == -1) {
    return Qnil;
  }

  return rb_str_new(buffer, len);

  (void)self;
  (void)r_offset;
}

.write(r_fd, r_buffer, r_length, r_offset) ⇒ Object 



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# File 'ext/iodine/scheduler.c', line 154

static VALUE iodine_scheduler_write(VALUE self, VALUE r_fd, VALUE r_buffer, VALUE r_length, VALUE r_offset) {
  Check_Type(r_fd, T_FIXNUM);
  int fd = FIX2INT(r_fd);

  Check_Type(r_buffer, T_STRING);
  char *buffer = RSTRING_PTR(r_buffer);

  Check_Type(r_length, T_FIXNUM);
  int length = FIX2INT(r_length);

  Check_Type(r_offset, T_FIXNUM);
  int offset = FIX2INT(r_offset);

  void *cpy = fio_malloc(length);
  memcpy(cpy, buffer, length);
  fio_write2(fio_fd2uuid(fd), .data.buffer = cpy, .length = length, .offset = offset, .after.dealloc = fio_free);

  return r_length;

  (void)self;
}