From 88bcc8ce6d5cc4eb3a7f541c735e3e7100b8f88f Mon Sep 17 00:00:00 2001
From: jakcron <jkrcarr@gmail.com>
Date: Sun, 15 Apr 2018 10:36:43 +0800
Subject: [PATCH] [fnd] Add fnd::io::getFileSize()

---
 lib/libfnd/include/fnd/io.h |  1 +
 lib/libfnd/source/io.cpp    | 12 ++++++++++++
 2 files changed, 13 insertions(+)

diff --git a/lib/libfnd/include/fnd/io.h b/lib/libfnd/include/fnd/io.h
index 7318126..d5ace2a 100644
--- a/lib/libfnd/include/fnd/io.h
+++ b/lib/libfnd/include/fnd/io.h
@@ -6,6 +6,7 @@ namespace fnd
 {
 	namespace io
 	{
+		size_t getFileSize(const std::string& path);
 		void readFile(const std::string& path, MemoryBlob& blob);
 		void readFile(const std::string& path, size_t offset, size_t len, MemoryBlob& blob);
 		void writeFile(const std::string& path, const MemoryBlob& blob);
diff --git a/lib/libfnd/source/io.cpp b/lib/libfnd/source/io.cpp
index 0c2ef08..816190f 100644
--- a/lib/libfnd/source/io.cpp
+++ b/lib/libfnd/source/io.cpp
@@ -1,10 +1,22 @@
 #include <fnd/io.h>
+#include <fstream>
 
 using namespace fnd;
 
 static const std::string kModuleName = "IO";
 static const size_t kBlockSize = 0x100000;
 
+size_t io::getFileSize(const std::string& path)
+{
+	std::ifstream f;
+	f.open(path, std::ios_base::binary | std::ios_base::in);
+	if (!f.good() || f.eof() || !f.is_open()) { return 0; }
+	f.seekg(0, std::ios_base::beg);
+	std::ifstream::pos_type begin_pos = f.tellg();
+	f.seekg(0, std::ios_base::end);
+	return static_cast<size_t>(f.tellg() - begin_pos);
+}
+
 void io::readFile(const std::string& path, MemoryBlob & blob)
 {
 	FILE* fp;