/*
 *
 * Copyright 2015, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include <grpc/support/port_platform.h>

#ifdef GPR_WINSOCK_SOCKET

#include <grpc/support/alloc.h>
#include <grpc/support/log.h>

#include "src/core/iomgr/iocp_windows.h"
#include "src/core/iomgr/iomgr.h"
#include "src/core/iomgr/iomgr_internal.h"
#include "src/core/iomgr/socket_windows.h"
#include "src/core/iomgr/pollset.h"
#include "src/core/iomgr/pollset_windows.h"

grpc_winsocket *grpc_winsocket_create(SOCKET socket) {
  grpc_winsocket *r = gpr_malloc(sizeof(grpc_winsocket));
  memset(r, 0, sizeof(grpc_winsocket));
  r->socket = socket;
  gpr_mu_init(&r->state_mu);
  grpc_iomgr_ref();
  grpc_iocp_add_socket(r);
  return r;
}

static void shutdown_op(grpc_winsocket_callback_info *info) {
  if (!info->cb) return;
  grpc_iomgr_add_delayed_callback(info->cb, info->opaque, 0);
}

void grpc_winsocket_shutdown(grpc_winsocket *socket) {
  shutdown_op(&socket->read_info);
  shutdown_op(&socket->write_info);
}

void grpc_winsocket_orphan(grpc_winsocket *winsocket) {
  SOCKET socket = winsocket->socket;
  if (!winsocket->closed_early) {
    grpc_iocp_socket_orphan(winsocket);
    winsocket->orphan = 1;
  }
  grpc_iomgr_unref();
  if (winsocket->closed_early) {
    grpc_winsocket_destroy(winsocket);
  }
  closesocket(socket);
}

void grpc_winsocket_destroy(grpc_winsocket *winsocket) {
  gpr_mu_destroy(&winsocket->state_mu);
  gpr_free(winsocket);
}

#endif  /* GPR_WINSOCK_SOCKET */