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-rw-r--r--chrome/browser/chrome_browser_main.cc5
-rw-r--r--chrome/browser/fragmentation_checker_unittest_win.cc24
-rw-r--r--chrome/browser/fragmentation_checker_win.cc111
-rw-r--r--chrome/browser/fragmentation_checker_win.h28
4 files changed, 0 insertions, 168 deletions
diff --git a/chrome/browser/chrome_browser_main.cc b/chrome/browser/chrome_browser_main.cc
index db563bc..7c3f5d4 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -160,7 +160,6 @@
#include "chrome/browser/browser_util_win.h"
#include "chrome/browser/first_run/try_chrome_dialog_view.h"
#include "chrome/browser/first_run/upgrade_util_win.h"
-#include "chrome/browser/fragmentation_checker_win.h"
#include "chrome/browser/net/url_fixer_upper.h"
#include "chrome/browser/rlz/rlz.h"
#include "chrome/browser/ui/views/user_data_dir_dialog.h"
@@ -1786,10 +1785,6 @@ int ChromeBrowserMainParts::PreMainMessageLoopRunInternal() {
LanguageUsageMetrics::RecordApplicationLanguage(
g_browser_process->GetApplicationLocale());
-#if defined(OS_WIN)
- fragmentation_checker::RecordFragmentationMetricForCurrentModule();
-#endif
-
#if defined(OS_CHROMEOS)
metrics->StartExternalMetrics();
diff --git a/chrome/browser/fragmentation_checker_unittest_win.cc b/chrome/browser/fragmentation_checker_unittest_win.cc
deleted file mode 100644
index c778d76..0000000
--- a/chrome/browser/fragmentation_checker_unittest_win.cc
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011 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/file_path.h"
-#include "base/path_service.h"
-#include "chrome/browser/fragmentation_checker_win.h"
-#include "chrome/common/guid.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-TEST(FragmentationChecker, BasicCheck) {
- FilePath module_path;
- ASSERT_TRUE(PathService::Get(base::FILE_MODULE, &module_path));
- int extent_count = fragmentation_checker::CountFileExtents(module_path);
- EXPECT_GT(extent_count, 0);
-}
-
-TEST(FragmentationChecker, InvalidFile) {
- FilePath module_path;
- ASSERT_TRUE(PathService::Get(base::FILE_MODULE, &module_path));
- module_path = module_path.DirName().AppendASCII(guid::GenerateGUID());
- int extent_count = fragmentation_checker::CountFileExtents(module_path);
- EXPECT_EQ(extent_count, 0);
-}
diff --git a/chrome/browser/fragmentation_checker_win.cc b/chrome/browser/fragmentation_checker_win.cc
deleted file mode 100644
index ef91717..0000000
--- a/chrome/browser/fragmentation_checker_win.cc
+++ /dev/null
@@ -1,111 +0,0 @@
-// Copyright (c) 2011 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 "chrome/browser/fragmentation_checker_win.h"
-
-#include <windows.h>
-#include <winioctl.h>
-
-#include <vector>
-
-#include "base/file_path.h"
-#include "base/logging.h"
-#include "base/metrics/histogram.h"
-#include "base/platform_file.h"
-#include "base/path_service.h"
-
-namespace {
-
-size_t ComputeRetrievalPointersBufferSize(int number_of_extents) {
- RETRIEVAL_POINTERS_BUFFER buffer;
- return sizeof(buffer) + (number_of_extents - 1) * sizeof(buffer.Extents);
-}
-
-} // namespace
-
-namespace fragmentation_checker {
-
-int CountFileExtents(const FilePath& file_path) {
- int file_extents_count = 0;
-
- base::PlatformFileError error_code = base::PLATFORM_FILE_ERROR_FAILED;
- base::PlatformFile file_handle = CreatePlatformFile(
- file_path,
- base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ,
- NULL,
- &error_code);
- if (error_code == base::PLATFORM_FILE_OK) {
- STARTING_VCN_INPUT_BUFFER starting_vcn_input_buffer = {0};
-
- // Compute an output size capable of holding 16 extents at first. This will
- // fail when the number of extents exceeds 16, in which case we make
- // a bigger buffer capable of holding up to kMaxExtentCounts.
- int extents_guess = 16;
- size_t output_size = ComputeRetrievalPointersBufferSize(extents_guess);
- std::vector<uint8> retrieval_pointers_buffer(output_size);
-
- DWORD bytes_returned = 0;
-
- bool result = false;
- do {
- result = DeviceIoControl(
- file_handle,
- FSCTL_GET_RETRIEVAL_POINTERS,
- reinterpret_cast<void*>(&starting_vcn_input_buffer),
- sizeof(starting_vcn_input_buffer),
- reinterpret_cast<void*>(&retrieval_pointers_buffer[0]),
- retrieval_pointers_buffer.size(),
- &bytes_returned,
- NULL) != FALSE;
-
- if (!result) {
- if (GetLastError() == ERROR_MORE_DATA) {
- // Grow the extents we can handle
- extents_guess *= 2;
- if (extents_guess > kMaxExtentCount) {
- LOG(ERROR) << "FSCTL_GET_RETRIEVAL_POINTERS output buffer exceeded "
- "maximum size.";
- file_extents_count = kMaxExtentCount;
- break;
- }
- output_size = ComputeRetrievalPointersBufferSize(extents_guess);
- retrieval_pointers_buffer.assign(output_size, 0);
- } else {
- PLOG(ERROR) << "FSCTL_GET_RETRIEVAL_POINTERS failed.";
- break;
- }
- }
- } while (!result);
-
- if (result) {
- RETRIEVAL_POINTERS_BUFFER* retrieval_pointers =
- reinterpret_cast<RETRIEVAL_POINTERS_BUFFER*>(
- &retrieval_pointers_buffer[0]);
- file_extents_count = static_cast<int>(retrieval_pointers->ExtentCount);
- } else {
- LOG(ERROR) << "Failed to retrieve extents.";
- }
- } else {
- LOG(ERROR) << "Failed to open module file to check extents. Error code = "
- << error_code;
- }
-
- return file_extents_count;
-}
-
-void RecordFragmentationMetricForCurrentModule() {
- FilePath module_path;
- if (PathService::Get(base::FILE_MODULE, &module_path)) {
- int file_extent_count = CountFileExtents(module_path);
- UMA_HISTOGRAM_CUSTOM_COUNTS("Fragmentation.ModuleExtents",
- file_extent_count,
- 0,
- kMaxExtentCount,
- 50);
- } else {
- NOTREACHED() << "Could not get path to current module.";
- }
-}
-
-} // namespace fragmentation_checker
diff --git a/chrome/browser/fragmentation_checker_win.h b/chrome/browser/fragmentation_checker_win.h
deleted file mode 100644
index 02f4231..0000000
--- a/chrome/browser/fragmentation_checker_win.h
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011 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.
-
-#ifndef CHROME_BROWSER_FRAGMENTATION_CHECKER_WIN_H_
-#define CHROME_BROWSER_FRAGMENTATION_CHECKER_WIN_H_
-#pragma once
-
-class FilePath;
-
-namespace fragmentation_checker {
-
-const int kMaxExtentCount = 1 << 16;
-
-// Returns the number of extents for the file at |file_path|. The number is
-// capped at kMaxExtentCount, files with more extents than that will be counted
-// as having kMaxExtentCount extents. On failure, this function returns 0.
-int CountFileExtents(const FilePath& file_path);
-
-// Records fragmentation metrics for the current module. This records the number
-// of fragments the current module is stored in.
-// This will be used to determine whether pursuing more aggressive
-// manual defragmentation is worth the effort.
-void RecordFragmentationMetricForCurrentModule();
-
-} // namespace fragmentation_checker
-
-#endif // CHROME_BROWSER_FRAGMENTATION_CHECKER_WIN_H_
generated by cgit v1.1 at 2025-04-03 09:28:41 +0000