[bug] Fix cleaning cache failed (#6100)

Issue: fixes #6081
taichi-dev · Sep 19, 2022 · bf365c7 · bf365c7
1 parent 88f030e
commit bf365c7
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Showing 2 changed files with 8 additions and 3 deletions.
diff --git a/taichi/runtime/llvm/llvm_offline_cache.cpp b/taichi/runtime/llvm/llvm_offline_cache.cpp
@@ -117,6 +117,11 @@ bool LlvmOfflineCacheFileReader::load_meta_data(
   using Error = offline_cache::LoadMetadataError;
   const auto tcb_path = get_llvm_cache_metadata_file_path(cache_file_path);
 
+  if (!taichi::path_exists(tcb_path)) {
+    TI_DEBUG("File {} not found", tcb_path);
+    return false;
+  }
+
   if (!with_lock) {
     return Error::kNoError == load_metadata_with_checking(data, tcb_path);
   }

diff --git a/taichi/util/io.h b/taichi/util/io.h
@@ -76,11 +76,11 @@ inline bool traverse_directory(const std::string &dir, Visitor v) {
     return false;
   }
   while ((f = ::readdir(directory))) {
-    struct stat *stat_buf = nullptr;
     auto fullpath = join_path(dir, f->d_name);
-    auto ret = ::stat(fullpath.c_str(), stat_buf);
+    struct stat stat_buf;
+    auto ret = ::stat(fullpath.c_str(), &stat_buf);
     TI_ASSERT(ret == 0);
-    v(f->d_name, S_ISDIR(stat_buf->st_mode));
+    v(f->d_name, S_ISDIR(stat_buf.st_mode));
   }
   auto ret = ::closedir(directory);
   TI_ASSERT(ret == 0);