intermodule_comm/nacl_imc_common.cc

   1 /*
   2  * Copyright 2008, Google Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met:
   8  *
   9  *     * Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *     * Neither the name of Google Inc. nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32
  33 // NaCl inter-module communication primitives.
  34
  35 #include <stdio.h>
  36 #include "native_client/intermodule_comm/nacl_imc.h"
  37
  38 namespace nacl {
  39
  40 int Send(Handle socket, const void* buffer, size_t length, int flags) {
  41   MessageHeader header;
  42   IOVec vec;
  43
  44   vec.base = const_cast<void*>(buffer);
  45   vec.length = length;
  46   header.iov = &vec;
  47   header.iov_length = 1;
  48   header.handles = NULL;
  49   header.handle_count = 0;
  50   header.flags = 0;
  51   return SendDatagram(socket, &header, flags);
  52 }
  53
  54 int SendTo(Handle socket, const void* buffer, size_t length, int flags,
  55            const SocketAddress* name) {
  56   MessageHeader header;
  57   IOVec vec;
  58
  59   vec.base = const_cast<void*>(buffer);
  60   vec.length = length;
  61   header.iov = &vec;
  62   header.iov_length = 1;
  63   header.handles = NULL;
  64   header.handle_count = 0;
  65   header.flags = 0;
  66   return SendDatagramTo(socket, &header, flags, name);
  67 }
  68
  69 int Receive(Handle socket, void* buffer, size_t length, int flags) {
  70   MessageHeader header;
  71   IOVec vec;
  72
  73   vec.base = buffer;
  74   vec.length = length;
  75   header.iov = &vec;
  76   header.iov_length = 1;
  77   header.handles = NULL;
  78   header.handle_count = 0;
  79   header.flags = 0;
  80   return ReceiveDatagram(socket, &header, flags);
  81 }
  82
  83 }  // namespace nacl