Rename mount

native_client_sdk/src/libraries/nacl_mounts_test/kernel_object_test.cc

-/* 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 <errno.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <sys/stat.h>
-
-#include <map>
-#include <string>
-
-#include "nacl_mounts/kernel_handle.h"
-#include "nacl_mounts/kernel_object.h"
-#include "nacl_mounts/mount.h"
-#include "nacl_mounts/path.h"
-
-#include "gtest/gtest.h"
-
-namespace {
-
-class MountRefMock : public Mount {
- public:
-  MountRefMock(int* mount_count, int* handle_count)
-      : mount_count(mount_count),
-        handle_count(handle_count) {
-    (*mount_count)++;
-  }
-
-  ~MountRefMock() {
-    (*mount_count)--;
-  }
-
- public:
-  MountNode* Open(const Path& path, int mode) { return NULL; }
-  int Close(MountNode* node) { return 0; }
-  int Unlink(const Path& path) { return 0; }
-  int Mkdir(const Path& path, int permissions) { return 0; }
-  int Rmdir(const Path& path) { return 0; }
-  int Remove(const Path& path) { return 0; }
-
- public:
-  int* mount_count;
-  int* handle_count;
-};
-
-class KernelHandleRefMock : public KernelHandle {
- public:
-  KernelHandleRefMock(Mount* mnt, MountNode* node, int flags)
-      : KernelHandle(mnt, node, flags) {
-    MountRefMock* mock_mount = static_cast<MountRefMock*>(mnt);
-    (*mock_mount->handle_count)++;
-  }
-
-  ~KernelHandleRefMock() {
-    MountRefMock* mock_mount = static_cast<MountRefMock*>(mount_);
-    (*mock_mount->handle_count)--;
-  }
-};
-
-class KernelObjectTest : public ::testing::Test {
- public:
-  KernelObjectTest()
-      : mount_count(0),
-        handle_count(0) {
-    proxy = new KernelObject;
-    mnt = new MountRefMock(&mount_count, &handle_count);
-  }
-
-  ~KernelObjectTest() {
-    // mnt is ref-counted, it doesn't need to be explicitly deleted.
-    delete proxy;
-  }
-
-  KernelObject* proxy;
-  MountRefMock* mnt;
-  int mount_count;
-  int handle_count;
-};
-
-}  // namespace
-
-
-TEST_F(KernelObjectTest, Referencing) {
-  KernelHandle* handle = new KernelHandleRefMock(mnt, NULL, 0);
-  KernelHandle* handle2 = new KernelHandleRefMock(mnt, NULL, 0);
-
-  // Objects should have one ref when we start
-  EXPECT_EQ(1, mnt->RefCount());
-  EXPECT_EQ(1, handle->RefCount());
-
-  // Objects should have two refs when we get here
-  int fd1 = proxy->AllocateFD(handle);
-  EXPECT_EQ(2, mnt->RefCount());
-  EXPECT_EQ(2, handle->RefCount());
-
-  // If we "dup" the handle, we should bump the refs
-  int fd2 = proxy->AllocateFD(handle);
-  EXPECT_EQ(3, mnt->RefCount());
-  EXPECT_EQ(3, handle->RefCount());
-
-  // If use a new handle with the same values... bump the refs
-  int fd3 = proxy->AllocateFD(handle2);
-  EXPECT_EQ(4, mnt->RefCount());
-  EXPECT_EQ(2, handle2->RefCount());
-
-  // Handles are expectd to come out in order
-  EXPECT_EQ(0, fd1);
-  EXPECT_EQ(1, fd2);
-  EXPECT_EQ(2, fd3);
-
-  // We should find the handle by either fd
-  EXPECT_EQ(handle, proxy->AcquireHandle(fd1));
-  EXPECT_EQ(handle, proxy->AcquireHandle(fd2));
-
-  // A non existant fd should fail
-  EXPECT_EQ(NULL, proxy->AcquireHandle(-1));
-  EXPECT_EQ(EBADF, errno);
-  EXPECT_EQ(NULL, proxy->AcquireHandle(100));
-  EXPECT_EQ(EBADF, errno);
-
-  // Acquiring the handle, should have ref'd it
-  EXPECT_EQ(4, mnt->RefCount());
-  EXPECT_EQ(5, handle->RefCount());
-
-  // Release the handle for each call to acquire
-  proxy->ReleaseHandle(handle);
-  proxy->ReleaseHandle(handle);
-
-  // Release the handle for each time we constructed something
-  proxy->ReleaseHandle(handle);
-  proxy->ReleaseHandle(handle2);
-  proxy->ReleaseMount(mnt);
-
-  // We should now only have references used by the KernelProxy
-  EXPECT_EQ(2, handle->RefCount());
-  EXPECT_EQ(1, handle2->RefCount());
-  EXPECT_EQ(3, mnt->RefCount());
-
-  EXPECT_EQ(2, handle_count);
-  EXPECT_EQ(1, mount_count);
-
-  proxy->FreeFD(fd1);
-  EXPECT_EQ(2, handle_count);
-  EXPECT_EQ(1, mount_count);
-
-  proxy->FreeFD(fd3);
-  EXPECT_EQ(1, handle_count);
-  EXPECT_EQ(1, mount_count);
-
-  proxy->FreeFD(fd2);
-  EXPECT_EQ(0, handle_count);
-  EXPECT_EQ(0, mount_count);
-}
-
-TEST_F(KernelObjectTest, AssignFD) {
-  EXPECT_EQ(0, handle_count);
-
-  KernelHandle* handle = new KernelHandleRefMock(mnt, NULL, 0);
-
-  EXPECT_EQ(1, handle_count);
-  EXPECT_EQ(1, handle->RefCount());
-
-  proxy->AssignFD(2, handle);
-  EXPECT_EQ((KernelHandle*)NULL, proxy->AcquireHandle(0));
-  EXPECT_EQ((KernelHandle*)NULL, proxy->AcquireHandle(1));
-  EXPECT_EQ(handle, proxy->AcquireHandle(2));
-  proxy->ReleaseHandle(handle);
-
-  EXPECT_EQ(1, handle_count);
-  EXPECT_EQ(2, handle->RefCount());
-
-  proxy->AssignFD(0, handle);
-  EXPECT_EQ(handle, proxy->AcquireHandle(0));
-  EXPECT_EQ((KernelHandle*)NULL, proxy->AcquireHandle(1));
-  EXPECT_EQ(handle, proxy->AcquireHandle(2));
-  proxy->ReleaseHandle(handle);
-  proxy->ReleaseHandle(handle);
-
-  EXPECT_EQ(1, handle_count);
-  EXPECT_EQ(3, handle->RefCount());
-
-  proxy->FreeFD(0);
-  proxy->FreeFD(2);
-  proxy->ReleaseHandle(handle);  // handle is constructed with a refcount of 1.
-
-  EXPECT_EQ(0, handle_count);
-}