added filesystem::FileStream

2 files changed, 36 insertions, 2 deletions

diff --git a/src/sys/sys.cc b/src/sys/sys.cc
index 59ed11d..01c9e3b 100644
--- a/src/sys/sys.cc
+++ b/src/sys/sys.cc
@@ -32,7 +32,38 @@
 namespace sys
 {
 
-bool isdirectory(const std::string &path)
+bool file_exists(const std::string &filename)
+{
+#ifdef _WIN32
+	struct ::_stat path_stat;
+	memset(&path_stat, 0, sizeof(struct ::_stat));
+	
+	if (::_stat(filename.c_str(), &path_stat) != 0) {
+		return false;
+	}
+	
+	if (path_stat.st_mode & _S_IFDIR) {
+		return false;
+	}
+	return true;
+#else
+	struct stat path_stat;
+	memset(&path_stat, 0, sizeof(path_stat));
+	
+	if (stat(filename.c_str(), &path_stat) != 0) {
+		return false;
+	}
+	
+	if (path_stat.st_mode & S_IFDIR) {
+		return false;
+	}
+	
+	return true;
+#endif
+}
+
+
+bool directory_exists(const std::string &path)
 {
 #ifdef _WIN32
 	struct ::_stat path_stat;
diff --git a/src/sys/sys.h b/src/sys/sys.h
index 81eba94..5e41daa 100644
--- a/src/sys/sys.h
+++ b/src/sys/sys.h
@@ -22,7 +22,10 @@ namespace sys
 typedef void(* signalfunc)(int signum);
 
 /// returns true if a path exists and it is a directory
-bool isdirectory(const std::string &path);
+bool directory_exists(const std::string &path);
+
+/// returns true if a file exists
+bool file_exists(const std::string &filename);
 
 /// create a directory
 void mkdir(const std::string &path);