mirror of
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112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// This command-line program dumps the contents of a set of cache files, either
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// to stdout or to another set of cache files.
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#include <stdio.h>
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#include <string>
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#include "base/at_exit.h"
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#include "base/command_line.h"
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#include "base/strings/string16.h"
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#include "base/strings/string_util.h"
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#include "net/disk_cache/blockfile/disk_format.h"
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#include "net/tools/dump_cache/dump_files.h"
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enum Errors {
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GENERIC = -1,
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ALL_GOOD = 0,
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INVALID_ARGUMENT = 1,
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FILE_ACCESS_ERROR,
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UNKNOWN_VERSION,
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TOOL_NOT_FOUND,
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};
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// Dumps the file headers to stdout.
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const char kDumpHeaders[] = "dump-headers";
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// Dumps all entries to stdout.
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const char kDumpContents[] = "dump-contents";
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// Dumps the LRU lists(s).
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const char kDumpLists[] = "dump-lists";
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// Dumps the entry at the given address (see kDumpAt).
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const char kDumpEntry[] = "dump-entry";
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// The cache address to dump.
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const char kDumpAt[] = "at";
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// Dumps the allocation bitmap of a file (see kDumpFile).
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const char kDumpAllocation[] = "dump-allocation";
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// The file to look at.
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const char kDumpFile[] = "file";
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int Help() {
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printf("dump_cache path_to_files [options]\n");
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printf("Dumps internal cache structures.\n");
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printf("warning: input files may be modified by this tool\n\n");
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printf("--dump-headers: show file headers\n");
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printf("--dump-contents [-v] [--full-key] [--csv]: list all entries\n");
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printf("--dump-lists: follow the LRU list(s)\n");
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printf(
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"--dump-entry [-v] [--full-key] --at=0xf00: show the data stored at"
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" 0xf00\n");
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printf(
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"--dump-allocation --file=data_0: show the allocation bitmap of"
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" data_0\n");
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printf("--csv: dump in a comma-separated-values format\n");
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printf(
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"--full-key: show up to 160 chars for the key. Use either -v or the"
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" key address for longer keys\n");
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printf("-v: detailed output (verbose)\n");
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return INVALID_ARGUMENT;
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}
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// -----------------------------------------------------------------------
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int main(int argc, const char* argv[]) {
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// Setup an AtExitManager so Singleton objects will be destroyed.
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base::AtExitManager at_exit_manager;
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base::CommandLine::Init(argc, argv);
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const base::CommandLine& command_line =
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*base::CommandLine::ForCurrentProcess();
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base::CommandLine::StringVector args = command_line.GetArgs();
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if (args.size() != 1)
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return Help();
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base::FilePath input_path(args[0]);
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if (input_path.empty())
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return Help();
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int version = GetMajorVersion(input_path);
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if (version != 2)
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return FILE_ACCESS_ERROR;
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if (command_line.HasSwitch(kDumpContents))
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return DumpContents(input_path);
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if (command_line.HasSwitch(kDumpLists))
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return DumpLists(input_path);
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if (command_line.HasSwitch(kDumpEntry) && command_line.HasSwitch(kDumpAt))
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return DumpEntryAt(input_path, command_line.GetSwitchValueASCII(kDumpAt));
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if (command_line.HasSwitch(kDumpAllocation) &&
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command_line.HasSwitch(kDumpFile)) {
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base::FilePath name =
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input_path.AppendASCII(command_line.GetSwitchValueASCII(kDumpFile));
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return DumpAllocation(name);
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}
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if (command_line.HasSwitch(kDumpHeaders))
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return DumpHeaders(input_path);
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return Help();
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}
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