Rename mount

native_client_sdk/src/libraries/nacl_mounts/mount_mem.cc

Index: native_client_sdk/src/libraries/nacl_mounts/mount_mem.cc
diff --git a/native_client_sdk/src/libraries/nacl_mounts/mount_mem.cc b/native_client_sdk/src/libraries/nacl_mounts/mount_mem.cc
deleted file mode 100644
index 8a61dc005b6bec7eb96d990c256eb366d927390d..0000000000000000000000000000000000000000
--- a/native_client_sdk/src/libraries/nacl_mounts/mount_mem.cc
+++ /dev/null
@@ -1,251 +0,0 @@
-/* Copyright (c) 2012 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 "nacl_mounts/mount_mem.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <string>
-
-#include "nacl_mounts/mount.h"
-#include "nacl_mounts/mount_node.h"
-#include "nacl_mounts/mount_node_dir.h"
-#include "nacl_mounts/mount_node_mem.h"
-#include "nacl_mounts/osstat.h"
-#include "nacl_mounts/path.h"
-#include "utils/auto_lock.h"
-#include "utils/ref_object.h"
-
-// TODO(noelallen) : Grab/Redefine these in the kernel object once available.
-#define USR_ID 1002
-#define GRP_ID 1003
-
-MountMem::MountMem()
-    : root_(NULL),
-      max_ino_(0) {
-}
-
-bool MountMem::Init(int dev, StringMap_t& args, PepperInterface* ppapi) {
-  Mount::Init(dev, args, ppapi);
-  root_ = AllocatePath(S_IREAD | S_IWRITE);
-  return (bool) (root_ != NULL);
-}
-
-void MountMem::Destroy() {
-  if (root_)
-    root_->Release();
-  root_ = NULL;
-}
-
-MountNode* MountMem::AllocatePath(int mode) {
-  MountNode *ptr = new MountNodeDir(this);
-  if (!ptr->Init(mode)) {
-    ptr->Release();
-    return NULL;
-  }
-  return ptr;
-}
-
-MountNode* MountMem::AllocateData(int mode) {
-  MountNode* ptr = new MountNodeMem(this);
-  if (!ptr->Init(mode)) {
-    ptr->Release();
-    return NULL;
-  }
-  return ptr;
-}
-
-MountNode* MountMem::FindNode(const Path& path, int type) {
-  MountNode* node = root_;
-
-  // If there is no root there, we have an error.
-  if (node == NULL) {
-    errno = ENOTDIR;
-    return NULL;
-  }
-
-  // We are expecting an "absolute" path from this mount point.
-  if (!path.IsAbsolute()) {
-    errno = EINVAL;
-    return NULL;
-  }
-
-  // Starting at the root, traverse the path parts.
-  for (size_t index = 1; node && index < path.Size(); index++) {
-    // If not a directory, then we have an error so return.
-    if (!node->IsaDir()) {
-      errno = ENOTDIR;
-      return NULL;
-    }
-
-    // Find the child node
-    node = node->FindChild(path.Part(index));
-  }
-
-  // node should be root, a found child, or a failed 'FindChild'
-  // which already has the correct errno set.
-  if (NULL == node) return NULL;
-
-  // If a directory is expected, but it's not a directory, then fail.
-  if ((type & S_IFDIR) && !node->IsaDir()) {
-    errno = ENOTDIR;
-    return NULL;
-  }
-
-  // If a file is expected, but it's not a file, then fail.
-  if ((type & S_IFREG) && node->IsaDir()) {
-    errno = EISDIR;
-    return NULL;
-  }
-
-  // We now have a valid object of the expected type, so return it.
-  return node;
-}
-
-MountNode* MountMem::Open(const Path& path, int mode) {
-  AutoLock lock(&lock_);
-  MountNode* node = FindNode(path);
-
-  if (NULL == node) {
-    // Now first find the parent directory to see if we can add it
-    MountNode* parent = FindNode(path.Parent(), S_IFDIR);
-    if (NULL == parent) return NULL;
-
-    // If the node does not exist and we can't create it, fail
-    if ((mode & O_CREAT) == 0) return NULL;
-
-    // Otherwise, create it with a single refernece
-    mode = OpenModeToPermission(mode);
-    node = AllocateData(mode);
-    if (NULL == node) return NULL;
-
-    if (parent->AddChild(path.Basename(), node) == -1) {
-      // Or if it fails, release it
-      node->Release();
-      return NULL;
-    }
-    return node;
-  }
-
-  // If we were expected to create it exclusively, fail
-  if (mode & O_EXCL) {
-    errno = EEXIST;
-    return NULL;
-  }
-
-  // Verify we got the requested permisions.
-  int req_mode = OpenModeToPermission(mode);
-  int obj_mode = node->GetMode() & OpenModeToPermission(O_RDWR);
-  if ((obj_mode & req_mode) != req_mode) {
-    errno = EACCES;
-    return NULL;
-  }
-
-  // We opened it, so ref count it before passing it back.
-  node->Acquire();
-  return node;
-}
-
-int MountMem::Mkdir(const Path& path, int mode) {
-  AutoLock lock(&lock_);
-
-  // We expect a Mount "absolute" path
-  if (!path.IsAbsolute()) {
-    errno = ENOENT;
-    return -1;
-  }
-
-  // The root of the mount is already created by the mount
-  if (path.Size() == 1) {
-    errno = EEXIST;
-    return -1;
-  }
-
-  MountNode* parent = FindNode(path.Parent(), S_IFDIR);
-  MountNode* node;
-
-  // If we failed to find the parent, the error code is already set.
-  if (NULL == parent) return -1;
-
-  node = parent->FindChild(path.Basename());
-  if (NULL != node) {
-    errno = EEXIST;
-    return -1;
-  }
-
-  // Otherwise, create a new node and attempt to add it
-  mode = OpenModeToPermission(mode);
-
-  // Allocate a node, with a RefCount of 1.  If added to the parent
-  // it will get ref counted again.  In either case, release the
-  // recount we have on exit.
-  node = AllocatePath(S_IREAD | S_IWRITE);
-  if (NULL == node) return -1;
-
-  if (parent->AddChild(path.Basename(), node) == -1) {
-    node->Release();
-    return -1;
-  }
-
-  node->Release();
-  return 0;
-}
-
-int MountMem::Unlink(const Path& path) {
-  return RemoveInternal(path, REMOVE_FILE);
-}
-
-int MountMem::Rmdir(const Path& path) {
-  return RemoveInternal(path, REMOVE_DIR);
-}
-
-int MountMem::Remove(const Path& path) {
-  return RemoveInternal(path, REMOVE_ALL);
-}
-
-int MountMem::RemoveInternal(const Path& path, int remove_type) {
-  AutoLock lock(&lock_);
-  bool dir_only = remove_type == REMOVE_DIR;
-  bool file_only = remove_type == REMOVE_FILE;
-  bool remove_dir = (remove_type & REMOVE_DIR) != 0;
-
-  if (dir_only) {
-    // We expect a Mount "absolute" path
-    if (!path.IsAbsolute()) {
-      errno = ENOENT;
-      return -1;
-    }
-
-    // The root of the mount is already created by the mount
-    if (path.Size() == 1) {
-      errno = EEXIST;
-      return -1;
-    }
-  }
-
-  MountNode* parent = FindNode(path.Parent(), S_IFDIR);
-
-  // If we failed to find the parent, the error code is already set.
-  if (NULL == parent) return -1;
-
-  // Verify we find a child which is a directory.
-  MountNode* child = parent->FindChild(path.Basename());
-  if (NULL == child) {
-    errno = ENOENT;
-    return -1;
-  }
-  if (dir_only && !child->IsaDir()) {
-    errno = ENOTDIR;
-    return -1;
-  }
-  if (file_only && child->IsaDir()) {
-    errno = EISDIR;
-    return -1;
-  }
-  if (remove_dir && child->ChildCount() > 0) {
-    errno = ENOTEMPTY;
-    return -1;
-  }
-  return parent->RemoveChild(path.Basename());
-}