service_runtime/nrd_xfer_lib/nrd_xfer_effector.h

   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  * NRD xfer effector for trusted code use.
  34  */
  35
  36 #ifndef NATIVE_CLIENT_SREVICE_RUNTIME_NRD_XFER_LIB_NRD_XFER_EFFECTOR_H_
  37 #define NATIVE_CLIENT_SREVICE_RUNTIME_NRD_XFER_LIB_NRD_XFER_EFFECTOR_H_
  38
  39 #include "native_client/include/nacl_base.h"
  40
  41 #include "native_client/service_runtime/nacl_desc_base.h"
  42 #include "native_client/service_runtime/nacl_desc_effector.h"
  43
  44 EXTERN_C_BEGIN
  45
  46 struct NaClNrdXferEffector {
  47   struct NaClDescEffector base;
  48   struct NaClDesc         *src_desc;  /* should be a NaClDescImcBoundDesc */
  49   struct NaClDesc         *out_desc;  /* one returned desc at a time */
  50 };
  51
  52 /* bool: returns non-zero for success, ups refcount on src_desc */
  53 int NaClNrdXferEffectorCtor(struct NaClNrdXferEffector  *self,
  54                             struct NaClDesc             *src_desc);
  55
  56 /*
  57  * yields returned NaClDesc, if any, passing ownership.
  58  */
  59 struct NaClDesc *NaClNrdXferEffectorTakeDesc(struct NaClNrdXferEffector *self);
  60
  61
  62
  63 EXTERN_C_END
  64
  65 #endif /* NATIVE_CLIENT_SREVICE_RUNTIME_NRD_XFER_LIB_NRD_XFER_EFFECTOR_H_ */