Add the descriptor support needed for Pepper in a way that does

not include chrome/common or base/ files from the NaCl tree.

Review URL: http://codereview.chromium.org/969006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@41864 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 71 insertions, 0 deletions

diff --git a/chrome/renderer/nacl_desc_wrapper_chrome.cc b/chrome/renderer/nacl_desc_wrapper_chrome.cc
new file mode 100644
index 0000000..86653b7
--- /dev/null
+++ b/chrome/renderer/nacl_desc_wrapper_chrome.cc
@@ -0,0 +1,71 @@
+// Copyright (c) 2010 The Chromium 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 "base/shared_memory.h"
+#include "base/sync_socket.h"
+#include "chrome/common/transport_dib.h"
+#include "native_client/src/trusted/desc/nacl_desc_base.h"
+#include "native_client/src/trusted/desc/nacl_desc_sync_socket.h"
+#include "native_client/src/trusted/desc/nacl_desc_wrapper.h"
+
+namespace nacl {
+
+DescWrapper* DescWrapperFactory::ImportPepperSharedMemory(intptr_t shm_int,
+                                                          size_t size) {
+  base::SharedMemory* shm = reinterpret_cast<base::SharedMemory*>(shm_int);
+#if defined(OS_LINUX) || defined(OS_MACOSX)
+  return ImportShmHandle(shm->handle().fd, size);
+#elif defined(OS_WIN)
+  return ImportShmHandle(shm->handle(), size);
+#else
+# error "What platform?"
+#endif
+}
+
+DescWrapper* DescWrapperFactory::ImportPepper2DSharedMemory(intptr_t shm_int) {
+  TransportDIB* dib = reinterpret_cast<TransportDIB*>(shm_int);
+#if defined(OS_LINUX)
+  // TransportDIBs use SysV (X) shared memory on Linux.
+  return ImportSysvShm(dib->handle(), dib->size());
+#elif defined(OS_MACOSX)
+  // TransportDIBs use mmap shared memory on OSX.
+  return ImportShmHandle(dib->handle().fd, dib->size());
+#elif defined(OS_WIN)
+  // TransportDIBs use MapViewOfFile shared memory on Windows.
+  return ImportShmHandle(dib->handle(), dib->size());
+#else
+# error "What platform?"
+#endif
+}
+
+DescWrapper* DescWrapperFactory::ImportPepperSync(intptr_t sync_int) {
+  base::SyncSocket* sock = reinterpret_cast<base::SyncSocket*>(sync_int);
+  struct NaClDescSyncSocket* ss_desc = NULL;
+  DescWrapper* wrapper = NULL;
+
+  ss_desc = static_cast<NaClDescSyncSocket*>(
+      calloc(1, sizeof(*ss_desc)));
+  if (NULL == ss_desc) {
+    // TODO(sehr): Gotos are awful.  Add a scoped_ptr variant that
+    // invokes NaClDescSafeUnref.
+    goto cleanup;
+  }
+  if (!NaClDescSyncSocketCtor(ss_desc, sock->handle())) {
+    free(ss_desc);
+    ss_desc = NULL;
+    goto cleanup;
+  }
+  wrapper = new DescWrapper(common_data_, &ss_desc->base);
+  if (NULL == wrapper) {
+    goto cleanup;
+  }
+  ss_desc = NULL;  // DescWrapper takes ownership of ss_desc.
+  return wrapper;
+
+ cleanup:
+  NaClDescSafeUnref(&ss_desc->base);
+  return NULL;
+}
+
+}  // namespace nacl