зеркало из https://github.com/electron/electron.git
Update devtools_file_system_indexer
* Switch DevToolsFileSystemIndexer to use SequencedTaskRunner https://chromium-review.googlesource.com/c/chromium/src/+/545200 * Remove dead code from devtools_file_system_indexer.cc https://codereview.chromium.org/2508443002 * Fix DCHECKs and a crash in DevToolsFileSystemIndexer https://chromium-review.googlesource.com/c/chromium/src/+/553958 * reset trigram cache when devtools window closes https://chromium-review.googlesource.com/c/chromium/src/+/969969 * Directly use base::File instead of FileProxy in DevToolsFileSystemIndexer https://chromium-review.googlesource.com/c/chromium/src/+/544793
This commit is contained in:
deepak1556
Samuel Attard
Родитель
deb8cd458d
Коммит
f32e59d4b2
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@ -16,9 +16,12 @@
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#include "base/files/file_util_proxy.h"
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#include "base/lazy_instance.h"
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#include "base/logging.h"
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#include "base/sequence_checker.h"
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#include "base/stl_util.h"
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#include "base/strings/string_util.h"
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#include "base/strings/utf_string_conversions.h"
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#include "base/task_scheduler/lazy_task_runner.h"
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#include "base/task_scheduler/post_task.h"
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#include "content/public/browser/browser_thread.h"
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using base::Bind;
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@ -30,7 +33,6 @@ using base::TimeDelta;
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using base::TimeTicks;
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using content::BrowserThread;
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using std::map;
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using std::set;
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using std::string;
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using std::vector;
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@ -38,6 +40,14 @@ namespace brightray {
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namespace {
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base::SequencedTaskRunner* impl_task_runner() {
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constexpr base::TaskTraits kBlockingTraits = {base::MayBlock(),
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base::TaskPriority::BACKGROUND};
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static base::LazySequencedTaskRunner s_sequenced_task_task_runner =
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LAZY_SEQUENCED_TASK_RUNNER_INITIALIZER(kBlockingTraits);
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return s_sequenced_task_task_runner.Get().get();
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}
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typedef int32_t Trigram;
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typedef char TrigramChar;
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typedef uint16_t FileId;
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@ -53,25 +63,23 @@ const TrigramChar kUndefinedTrigramChar = -1;
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const TrigramChar kBinaryTrigramChar = -2;
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const Trigram kUndefinedTrigram = -1;
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template <typename Char>
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bool IsAsciiUpper(Char c) {
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return c >= 'A' && c <= 'Z';
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}
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class Index {
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public:
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Index();
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// Index is only instantiated as a leak LazyInstance, so the destructor is
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// never called.
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~Index() = delete;
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Time LastModifiedTimeForFile(const FilePath& file_path);
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void SetTrigramsForFile(const FilePath& file_path,
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const vector<Trigram>& index,
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const Time& time);
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vector<FilePath> Search(string query);
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void PrintStats();
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vector<FilePath> Search(const string& query);
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void NormalizeVectors();
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void Reset();
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void EnsureInitialized();
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private:
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~Index();
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FileId GetFileId(const FilePath& file_path);
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typedef map<FilePath, FileId> FileIdsMap;
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@ -82,6 +90,7 @@ class Index {
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typedef map<FilePath, Time> IndexedFilesMap;
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IndexedFilesMap index_times_;
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vector<bool> is_normalized_;
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SEQUENCE_CHECKER(sequence_checker_);
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DISALLOW_COPY_AND_ASSIGN(Index);
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};
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@ -100,7 +109,7 @@ TrigramChar TrigramCharForChar(char c) {
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char ch = static_cast<char>(i);
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if (ch == '\t')
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ch = ' ';
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if (IsAsciiUpper(ch))
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if (base::IsAsciiUpper(ch))
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ch = ch - 'A' + 'a';
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bool is_binary_char = ch < 9 || (ch >= 14 && ch < 32) || ch == 127;
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@ -140,15 +149,28 @@ Trigram TrigramAtIndex(const vector<TrigramChar>& trigram_chars, size_t index) {
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}
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Index::Index() : last_file_id_(0) {
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Reset();
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}
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void Index::Reset() {
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file_ids_.clear();
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index_.clear();
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index_times_.clear();
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is_normalized_.clear();
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last_file_id_ = 0;
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}
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void Index::EnsureInitialized() {
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if (index_.size() != 0)
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return;
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index_.resize(kTrigramCount);
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is_normalized_.resize(kTrigramCount);
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std::fill(is_normalized_.begin(), is_normalized_.end(), true);
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}
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Index::~Index() {}
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Time Index::LastModifiedTimeForFile(const FilePath& file_path) {
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DCHECK_CURRENTLY_ON(BrowserThread::FILE);
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DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
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EnsureInitialized();
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Time last_modified_time;
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if (index_times_.find(file_path) != index_times_.end())
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last_modified_time = index_times_[file_path];
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@ -158,7 +180,8 @@ Time Index::LastModifiedTimeForFile(const FilePath& file_path) {
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void Index::SetTrigramsForFile(const FilePath& file_path,
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const vector<Trigram>& index,
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const Time& time) {
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DCHECK_CURRENTLY_ON(BrowserThread::FILE);
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DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
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EnsureInitialized();
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FileId file_id = GetFileId(file_path);
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auto it = index.begin();
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for (; it != index.end(); ++it) {
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@ -169,8 +192,9 @@ void Index::SetTrigramsForFile(const FilePath& file_path,
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index_times_[file_path] = time;
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}
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vector<FilePath> Index::Search(string query) {
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DCHECK_CURRENTLY_ON(BrowserThread::FILE);
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vector<FilePath> Index::Search(const string& query) {
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DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
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EnsureInitialized();
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const char* data = query.c_str();
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vector<TrigramChar> trigram_chars;
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trigram_chars.reserve(query.size());
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@ -186,7 +210,7 @@ vector<FilePath> Index::Search(string query) {
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if (trigram != kUndefinedTrigram)
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trigrams.push_back(trigram);
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}
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set<FileId> file_ids;
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std::set<FileId> file_ids;
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bool first = true;
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vector<Trigram>::const_iterator it = trigrams.begin();
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for (; it != trigrams.end(); ++it) {
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@ -197,8 +221,8 @@ vector<FilePath> Index::Search(string query) {
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first = false;
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continue;
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}
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set<FileId> intersection =
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base::STLSetIntersection<set<FileId>>(file_ids, index_[trigram]);
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std::set<FileId> intersection =
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base::STLSetIntersection<std::set<FileId>>(file_ids, index_[trigram]);
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file_ids.swap(intersection);
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}
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vector<FilePath> result;
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@ -212,7 +236,8 @@ vector<FilePath> Index::Search(string query) {
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}
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FileId Index::GetFileId(const FilePath& file_path) {
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DCHECK_CURRENTLY_ON(BrowserThread::FILE);
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DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
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EnsureInitialized();
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string file_path_str = file_path.AsUTF8Unsafe();
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if (file_ids_.find(file_path) != file_ids_.end())
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return file_ids_[file_path];
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@ -221,7 +246,8 @@ FileId Index::GetFileId(const FilePath& file_path) {
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}
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void Index::NormalizeVectors() {
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DCHECK_CURRENTLY_ON(BrowserThread::FILE);
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DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
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EnsureInitialized();
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for (size_t i = 0; i < kTrigramCount; ++i) {
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if (!is_normalized_[i]) {
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std::sort(index_[i].begin(), index_[i].end());
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@ -232,26 +258,6 @@ void Index::NormalizeVectors() {
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}
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}
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void Index::PrintStats() {
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DCHECK_CURRENTLY_ON(BrowserThread::FILE);
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LOG(ERROR) << "Index stats:";
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size_t size = 0;
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size_t maxSize = 0;
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size_t capacity = 0;
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for (size_t i = 0; i < kTrigramCount; ++i) {
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if (index_[i].size() > maxSize)
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maxSize = index_[i].size();
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size += index_[i].size();
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capacity += index_[i].capacity();
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}
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LOG(ERROR) << " - total trigram count: " << size;
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LOG(ERROR) << " - max file count per trigram: " << maxSize;
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LOG(ERROR) << " - total vectors capacity " << capacity;
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size_t total_index_size =
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capacity * sizeof(FileId) + sizeof(vector<FileId>) * kTrigramCount;
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LOG(ERROR) << " - estimated total index size " << total_index_size;
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}
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typedef Callback<void(bool, const vector<bool>&)> IndexerCallback;
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} // namespace
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@ -265,8 +271,6 @@ DevToolsFileSystemIndexer::FileSystemIndexingJob::FileSystemIndexingJob(
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total_work_callback_(total_work_callback),
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worked_callback_(worked_callback),
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done_callback_(done_callback),
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current_file_(
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BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE).get()),
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files_indexed_(0),
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stopped_(false) {
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current_trigrams_set_.resize(kTrigramCount);
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@ -277,24 +281,22 @@ DevToolsFileSystemIndexer::FileSystemIndexingJob::~FileSystemIndexingJob() {}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::Start() {
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DCHECK_CURRENTLY_ON(BrowserThread::UI);
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BrowserThread::PostTask(
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BrowserThread::FILE, FROM_HERE,
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BindOnce(&FileSystemIndexingJob::CollectFilesToIndex, this));
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impl_task_runner()->PostTask(
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FROM_HERE, BindOnce(&FileSystemIndexingJob::CollectFilesToIndex, this));
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}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::Stop() {
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DCHECK_CURRENTLY_ON(BrowserThread::UI);
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BrowserThread::PostTask(
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BrowserThread::FILE, FROM_HERE,
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BindOnce(&FileSystemIndexingJob::StopOnFileThread, this));
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impl_task_runner()->PostTask(
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FROM_HERE, BindOnce(&FileSystemIndexingJob::StopOnImplSequence, this));
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}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::StopOnFileThread() {
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::StopOnImplSequence() {
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stopped_ = true;
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}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::CollectFilesToIndex() {
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DCHECK_CURRENTLY_ON(BrowserThread::FILE);
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DCHECK(impl_task_runner()->RunsTasksInCurrentSequence());
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if (stopped_)
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return;
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if (!file_enumerator_) {
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@ -317,13 +319,12 @@ void DevToolsFileSystemIndexer::FileSystemIndexingJob::CollectFilesToIndex() {
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if (current_last_modified_time > saved_last_modified_time) {
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file_path_times_[file_path] = current_last_modified_time;
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}
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BrowserThread::PostTask(
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BrowserThread::FILE, FROM_HERE,
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BindOnce(&FileSystemIndexingJob::CollectFilesToIndex, this));
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impl_task_runner()->PostTask(
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FROM_HERE, BindOnce(&FileSystemIndexingJob::CollectFilesToIndex, this));
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}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::IndexFiles() {
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DCHECK_CURRENTLY_ON(BrowserThread::FILE);
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DCHECK(impl_task_runner()->RunsTasksInCurrentSequence());
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if (stopped_)
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return;
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if (indexing_it_ == file_path_times_.end()) {
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@ -332,13 +333,8 @@ void DevToolsFileSystemIndexer::FileSystemIndexingJob::IndexFiles() {
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return;
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}
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FilePath file_path = indexing_it_->first;
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current_file_.CreateOrOpen(
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file_path, base::File::FLAG_OPEN | base::File::FLAG_READ,
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Bind(&FileSystemIndexingJob::StartFileIndexing, this));
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}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::StartFileIndexing(
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base::File::Error error) {
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current_file_.Initialize(file_path,
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base::File::FLAG_OPEN | base::File::FLAG_READ);
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if (!current_file_.IsValid()) {
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FinishFileIndexing(false);
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return;
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@ -354,20 +350,16 @@ void DevToolsFileSystemIndexer::FileSystemIndexingJob::ReadFromFile() {
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CloseFile();
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return;
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}
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current_file_.Read(current_file_offset_, kMaxReadLength,
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Bind(&FileSystemIndexingJob::OnRead, this));
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}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::OnRead(
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base::File::Error error,
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const char* data,
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int bytes_read) {
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if (error != base::File::FILE_OK) {
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std::unique_ptr<char[]> data_ptr(new char[kMaxReadLength]);
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const char* const data = data_ptr.get();
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int bytes_read =
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current_file_.Read(current_file_offset_, data_ptr.get(), kMaxReadLength);
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if (bytes_read < 0) {
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FinishFileIndexing(false);
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return;
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}
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if (!bytes_read || bytes_read < 3) {
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if (bytes_read < 3) {
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FinishFileIndexing(true);
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return;
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}
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@ -393,12 +385,13 @@ void DevToolsFileSystemIndexer::FileSystemIndexingJob::OnRead(
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}
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}
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current_file_offset_ += bytes_read - 2;
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ReadFromFile();
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impl_task_runner()->PostTask(
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FROM_HERE, base::BindOnce(&FileSystemIndexingJob::ReadFromFile, this));
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}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::FinishFileIndexing(
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bool success) {
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DCHECK_CURRENTLY_ON(BrowserThread::FILE);
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DCHECK(impl_task_runner()->RunsTasksInCurrentSequence());
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CloseFile();
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if (success) {
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FilePath file_path = indexing_it_->first;
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@ -407,17 +400,15 @@ void DevToolsFileSystemIndexer::FileSystemIndexingJob::FinishFileIndexing(
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}
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ReportWorked();
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++indexing_it_;
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IndexFiles();
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impl_task_runner()->PostTask(
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FROM_HERE, base::BindOnce(&FileSystemIndexingJob::IndexFiles, this));
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}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::CloseFile() {
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if (current_file_.IsValid())
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current_file_.Close(Bind(&FileSystemIndexingJob::CloseCallback, this));
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current_file_.Close();
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}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::CloseCallback(
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base::File::Error error) {}
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void DevToolsFileSystemIndexer::FileSystemIndexingJob::ReportWorked() {
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TimeTicks current_time = TimeTicks::Now();
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bool should_send_worked_nitification = true;
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|
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@ -435,9 +426,20 @@ void DevToolsFileSystemIndexer::FileSystemIndexingJob::ReportWorked() {
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}
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}
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DevToolsFileSystemIndexer::DevToolsFileSystemIndexer() {}
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static int g_instance_count = 0;
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DevToolsFileSystemIndexer::~DevToolsFileSystemIndexer() {}
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DevToolsFileSystemIndexer::DevToolsFileSystemIndexer() {
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impl_task_runner()->PostTask(FROM_HERE,
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base::BindOnce([]() { ++g_instance_count; }));
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}
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DevToolsFileSystemIndexer::~DevToolsFileSystemIndexer() {
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impl_task_runner()->PostTask(FROM_HERE, base::BindOnce([]() {
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--g_instance_count;
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if (!g_instance_count)
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g_trigram_index.Get().Reset();
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}));
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}
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scoped_refptr<DevToolsFileSystemIndexer::FileSystemIndexingJob>
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DevToolsFileSystemIndexer::IndexPath(
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|
|
@ -457,17 +459,17 @@ void DevToolsFileSystemIndexer::SearchInPath(const string& file_system_path,
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const string& query,
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const SearchCallback& callback) {
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DCHECK_CURRENTLY_ON(BrowserThread::UI);
|
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BrowserThread::PostTask(
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BrowserThread::FILE, FROM_HERE,
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BindOnce(&DevToolsFileSystemIndexer::SearchInPathOnFileThread, this,
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impl_task_runner()->PostTask(
|
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FROM_HERE,
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BindOnce(&DevToolsFileSystemIndexer::SearchInPathOnImplSequence, this,
|
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file_system_path, query, callback));
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}
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||||
|
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void DevToolsFileSystemIndexer::SearchInPathOnFileThread(
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||||
void DevToolsFileSystemIndexer::SearchInPathOnImplSequence(
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const string& file_system_path,
|
||||
const string& query,
|
||||
const SearchCallback& callback) {
|
||||
DCHECK_CURRENTLY_ON(BrowserThread::FILE);
|
||||
DCHECK(impl_task_runner()->RunsTasksInCurrentSequence());
|
||||
vector<FilePath> file_paths = g_trigram_index.Get().Search(query);
|
||||
vector<string> result;
|
||||
FilePath path = FilePath::FromUTF8Unsafe(file_system_path);
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|
|
@ -477,7 +479,7 @@ void DevToolsFileSystemIndexer::SearchInPathOnFileThread(
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|||
result.push_back(it->AsUTF8Unsafe());
|
||||
}
|
||||
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
|
||||
BindOnce(callback, result));
|
||||
BindOnce(callback, std::move(result)));
|
||||
}
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||||
|
||||
} // namespace brightray
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||||
|
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|
|
@ -13,7 +13,7 @@
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|||
#include <vector>
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||||
|
||||
#include "base/callback.h"
|
||||
#include "base/files/file_proxy.h"
|
||||
#include "base/files/file.h"
|
||||
#include "base/macros.h"
|
||||
#include "base/memory/ref_counted.h"
|
||||
|
||||
|
|
@ -23,10 +23,6 @@ class FileEnumerator;
|
|||
class Time;
|
||||
} // namespace base
|
||||
|
||||
namespace content {
|
||||
class WebContents;
|
||||
}
|
||||
|
||||
namespace brightray {
|
||||
|
||||
class DevToolsFileSystemIndexer
|
||||
|
|
@ -37,12 +33,13 @@ class DevToolsFileSystemIndexer
|
|||
typedef base::Callback<void()> DoneCallback;
|
||||
typedef base::Callback<void(const std::vector<std::string>&)> SearchCallback;
|
||||
|
||||
class FileSystemIndexingJob : public base::RefCounted<FileSystemIndexingJob> {
|
||||
class FileSystemIndexingJob
|
||||
: public base::RefCountedThreadSafe<FileSystemIndexingJob> {
|
||||
public:
|
||||
void Stop();
|
||||
|
||||
private:
|
||||
friend class base::RefCounted<FileSystemIndexingJob>;
|
||||
friend class base::RefCountedThreadSafe<FileSystemIndexingJob>;
|
||||
friend class DevToolsFileSystemIndexer;
|
||||
FileSystemIndexingJob(const base::FilePath& file_system_path,
|
||||
const TotalWorkCallback& total_work_callback,
|
||||
|
|
@ -51,15 +48,13 @@ class DevToolsFileSystemIndexer
|
|||
virtual ~FileSystemIndexingJob();
|
||||
|
||||
void Start();
|
||||
void StopOnFileThread();
|
||||
void StopOnImplSequence();
|
||||
void CollectFilesToIndex();
|
||||
void IndexFiles();
|
||||
void StartFileIndexing(base::File::Error error);
|
||||
void ReadFromFile();
|
||||
void OnRead(base::File::Error error, const char* data, int bytes_read);
|
||||
void FinishFileIndexing(bool success);
|
||||
void CloseFile();
|
||||
void CloseCallback(base::File::Error error);
|
||||
void ReportWorked();
|
||||
|
||||
base::FilePath file_system_path_;
|
||||
|
|
@ -70,7 +65,7 @@ class DevToolsFileSystemIndexer
|
|||
typedef std::map<base::FilePath, base::Time> FilePathTimesMap;
|
||||
FilePathTimesMap file_path_times_;
|
||||
FilePathTimesMap::const_iterator indexing_it_;
|
||||
base::FileProxy current_file_;
|
||||
base::File current_file_;
|
||||
int64_t current_file_offset_;
|
||||
typedef int32_t Trigram;
|
||||
std::vector<Trigram> current_trigrams_;
|
||||
|
|
@ -101,9 +96,9 @@ class DevToolsFileSystemIndexer
|
|||
|
||||
virtual ~DevToolsFileSystemIndexer();
|
||||
|
||||
void SearchInPathOnFileThread(const std::string& file_system_path,
|
||||
const std::string& query,
|
||||
const SearchCallback& callback);
|
||||
void SearchInPathOnImplSequence(const std::string& file_system_path,
|
||||
const std::string& query,
|
||||
const SearchCallback& callback);
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(DevToolsFileSystemIndexer);
|
||||
};
|
||||
|
|
|
|||
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