Added unlink function

Author: yangosoft

src/include/cpputils2/file/file.hpp

@@ -9,6 +9,16 @@
 namespace CppUtils2
 {
 
+  inline Result unlink(const std::string &path)
+  {
+    auto ret = std::remove(path.c_str());
+    if (ret == 0)
+    {
+      return Result::RET_OK;
+    }
+    return Result::RET_ERROR;
+  }
+
   inline bool file_exists(const std::string &name)
   {
     std::ifstream f(name.c_str());

src/test/cpputils2_tests.cpp

@@ -120,7 +120,17 @@ namespace
 
   TEST(ExampleFutex, TestShared)
   {
-    CppUtils2::SharedFutex futex("/test_futex");
+    if (CppUtils2::file_exists("/dev/shm/test_futex"))
+    {
+      CppUtils2::unlink("/dev/shm/test_futex");
+    }
+
+    CppUtils2::Shm shm("/test_futex");
+    shm.allocate(sizeof(int32_t));
+    void *ptr = shm.get_raw_ptr();
+
+    CppUtils2::SharedFutex futex;
+    futex.init("/test_futex");
     futex.lock();
     futex.unlock();