Enable -Wunreachable-code-return

[folly.git] / folly / experimental / symbolizer / ElfCache.h

diff --git a/folly/experimental/symbolizer/ElfCache.h b/folly/experimental/symbolizer/ElfCache.h
index 671b263b4a8991fd3b8aad58577922e762a40cb5..378baa205238b7a796edf5018cf0fe9c64751e18 100644 (file)
--- a/folly/experimental/symbolizer/ElfCache.h
+++ b/folly/experimental/symbolizer/ElfCache.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef FOLLY_SYMBOLIZER_ELFCACHE_H_
-#define FOLLY_SYMBOLIZER_ELFCACHE_H_
+#pragma once
 
 #include <cstring>
 #include <limits.h>  // for PATH_MAX
@@ -30,10 +29,17 @@
 #include <boost/intrusive/list.hpp>
 #include <glog/logging.h>
 
+#include <folly/Hash.h>
+#include <folly/Range.h>
 #include <folly/experimental/symbolizer/Elf.h>
 
 namespace folly { namespace symbolizer {
 
+/**
+ * Number of ELF files loaded by the dynamic loader.
+ */
+size_t countLoadedElfFiles();
+
 class ElfCacheBase {
  public:
   virtual std::shared_ptr<ElfFile> getFile(StringPiece path) = 0;
@@ -117,10 +123,7 @@ class ElfCache : public ElfCacheBase {
   static std::shared_ptr<ElfFile> filePtr(const std::shared_ptr<Entry>& e);
 
   size_t capacity_;
-  std::unordered_map<
-    StringPiece,
-    std::shared_ptr<Entry>,
-    StringPieceHash> files_;
+  std::unordered_map<StringPiece, std::shared_ptr<Entry>, Hash> files_;
 
   typedef boost::intrusive::list<
       Entry,
@@ -130,5 +133,3 @@ class ElfCache : public ElfCacheBase {
 };
 
 }}  // namespaces
-
-#endif /* FOLLY_SYMBOLIZER_ELFCACHE_H_ */