Move plugin/srpc contents to the more appropriately named plugin/common....

src/trusted/plugin/srpc/stream_shm_buffer.cc

-/*
- * Copyright 2008 The Native Client Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can
- * be found in the LICENSE file.
- */
-
-
-#include "native_client/src/trusted/plugin/srpc/stream_shm_buffer.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <limits>
-
-#include "native_client/src/include/checked_cast.h"
-#include "native_client/src/include/nacl_macros.h"
-#include "native_client/src/include/portability.h"
-
-#include "native_client/src/trusted/plugin/srpc/utility.h"
-
-#include "native_client/src/trusted/service_runtime/gio_shm_unbounded.h"
-#include "native_client/src/trusted/service_runtime/nacl_config.h"
-#include "native_client/src/trusted/service_runtime/sel_util.h"
-
-using nacl::assert_cast;
-
-namespace plugin {
-
-StreamShmBuffer::StreamShmBuffer() {
-  shmbufp_ = reinterpret_cast<NaClGioShmUnbounded *>(malloc(sizeof *shmbufp_));
-  // If NULL == shmbufp_, object is not completely initialized.
-  // Therefore all member functions need to check before running.
-  if (NULL == shmbufp_) {
-    PLUGIN_PRINTF(("StreamShmBuffer: malloc failed\n"));
-    return;
-  }
-  if (!NaClGioShmUnboundedCtor(shmbufp_)) {
-    PLUGIN_PRINTF(("StreamShmBuffer: NaClGioShmUnboundedCtor failed\n"));
-    free(shmbufp_);
-    shmbufp_ = NULL;
-  }
-}
-
-StreamShmBuffer::~StreamShmBuffer() {
-  if (NULL == shmbufp_) {
-    return;
-  }
-  shmbufp_->base.vtbl->Dtor(&shmbufp_->base);
-  free(shmbufp_);
-}
-
-int32_t StreamShmBuffer::write(int32_t offset, int32_t len, void* buf) {
-  // Errors are reported to NPAPI by using a negative return value.
-  // If the constructor failed to set things up corretly, we return failure.
-  if (NULL == shmbufp_) {
-    return -1;
-  }
-  // If the offset or length is negative, return failure.
-  if (0 > offset || 0 > len) {
-    return -1;
-  }
-  if (0 > shmbufp_->base.vtbl->Seek(&shmbufp_->base, offset, SEEK_SET)) {
-    return -1;
-  }
-  ssize_t rv = shmbufp_->base.vtbl->Write(&shmbufp_->base, buf, len);
-  if (rv != len) {
-    PLUGIN_PRINTF(("StreamShmBuffer::write returned %" NACL_PRIdS
-                   ", not %" NACL_PRIdS "\n",
-                   rv, static_cast<ssize_t>(len)));
-  }
-  return static_cast<int32_t>(rv);
-}
-
-int32_t StreamShmBuffer::read(int32_t offset, int32_t len, void* buf) {
-  // Errors are reported to NPAPI by using a negative return value.
-  // If the constructor failed to set things up corretly, we return failure.
-  if (NULL == shmbufp_) {
-    return -1;
-  }
-  // If the offset or length is negative, return failure.
-  if (0 > offset || 0 > len) {
-    return -1;
-  }
-  if (0 > shmbufp_->base.vtbl->Seek(&shmbufp_->base, offset, SEEK_SET)) {
-    return -1;
-  }
-  ssize_t rv = shmbufp_->base.vtbl->Read(&shmbufp_->base, buf, len);
-  if (rv != len) {
-    PLUGIN_PRINTF(("StreamShmBuffer::read returned %" NACL_PRIdS
-                   ", not %" NACL_PRIdS "\n",
-                   rv, static_cast<ssize_t>(len)));
-  }
-  return static_cast<int32_t>(rv);
-}
-
-NaClDesc* StreamShmBuffer::shm(int32_t* size) const {
-  size_t actual_size;
-  NaClDesc *ndp;
-
-  ndp = NaClGioShmUnboundedGetNaClDesc(shmbufp_, &actual_size);
-  if (static_cast<size_t>(std::numeric_limits<int32_t>::max()) < actual_size) {
-    // fail -- not representable
-    *size = 0;
-    return NULL;
-  }
-  *size = assert_cast<int32_t>(actual_size);
-  return ndp;
-}
-
-}  // namespace plugin