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pipeline

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This commit is contained in:
Fangrui Song 2018-07-08 11:51:07 -07:00
parent 8e4d62212b
commit f9befbd5fb
2 changed files with 13 additions and 29 deletions
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2
src/indexer.cc
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@ -30,7 +30,7 @@ using llvm::Timer;
namespace {
struct IndexParam {
std::map<llvm::sys::fs::UniqueID, std::string> SeenUniqueID;
std::unordered_map<llvm::sys::fs::UniqueID, std::string> SeenUniqueID;
std::unordered_map<std::string, FileContents> file_contents;
std::unordered_map<std::string, int64_t> file2write_time;
llvm::DenseMap<const Decl*, Usr> Decl2usr;

36
src/pipeline.cc
View File

@ -79,35 +79,22 @@ ThreadedQueue<Index_Request>* index_request;
ThreadedQueue<IndexUpdate>* on_indexed;
ThreadedQueue<Stdout_Request>* for_stdout;
// Checks if |path| needs to be reparsed. This will modify cached state
// such that calling this function twice with the same path may return true
// the first time but will return false the second.
//
// |from|: The file which generated the parse request for this file.
bool FileNeedsParse(int64_t write_time,
VFS* vfs,
bool is_interactive,
IndexFile* opt_previous_index,
const std::string& path,
const std::vector<std::string>& args,
const std::optional<std::string>& from) {
bool CacheInvalid(VFS *vfs, IndexFile *prev, const std::string &path,
const std::vector<std::string> &args,
const std::optional<std::string> &from) {
{
std::lock_guard<std::mutex> lock(vfs->mutex);
if (vfs->state[path].timestamp < write_time) {
if (prev->last_write_time < vfs->state[path].timestamp) {
LOG_S(INFO) << "timestamp changed for " << path
<< (from ? " (via " + *from + ")" : std::string());
return true;
}
}
// Command-line arguments changed.
if (opt_previous_index) {
auto& prev_args = opt_previous_index->args;
if (prev_args != args) {
if (prev->args != args) {
LOG_S(INFO) << "args changed for " << path << (from ? " (via " + *from + ")" : std::string());
return true;
}
}
return false;
};
@ -184,18 +171,15 @@ bool Indexer_Parse(DiagnosticsPublisher* diag_pub,
std::optional<int64_t> write_time = LastWriteTime(path_to_index);
if (!write_time)
return true;
// FIXME Don't drop
if (!vfs->Mark(path_to_index, g_thread_id, 1))
int reparse = vfs->Stamp(path_to_index, *write_time);
if (!vfs->Mark(path_to_index, g_thread_id, 1) && !reparse)
return true;
int reparse; // request.is_interactive;
prev = RawCacheLoad(path_to_index);
if (!prev)
reparse = 2;
else {
reparse = vfs->Stamp(path_to_index, prev->last_write_time);
if (FileNeedsParse(*write_time, vfs, request.is_interactive, &*prev,
path_to_index, entry.args, std::nullopt))
if (CacheInvalid(vfs, prev.get(), path_to_index, entry.args, std::nullopt))
reparse = 2;
int reparseForDep = g_config->index.reparseForDependency;
if (reparseForDep > 1 || (reparseForDep == 1 && !Project::loaded))
@ -218,7 +202,7 @@ bool Indexer_Parse(DiagnosticsPublisher* diag_pub,
IndexUpdate update = IndexUpdate::CreateDelta(nullptr, prev.get());
on_indexed->PushBack(std::move(update), request.is_interactive);
}
for (const auto& dep : dependencies)
for (const auto &dep : dependencies)
if (vfs->Mark(dep.first().str(), 0, 2) &&
(prev = RawCacheLoad(dep.first().str()))) {
IndexUpdate update = IndexUpdate::CreateDelta(nullptr, prev.get());
@ -273,7 +257,7 @@ bool Indexer_Parse(DiagnosticsPublisher* diag_pub,
timer.stopTimer();
}
vfs->Reset(path_to_index);
vfs->Reset(path);
if (entry.id >= 0) {
std::lock_guard<std::mutex> lock(project->mutex_);
for (auto& dep : curr->dependencies)