From bd857d24443b8c8f5d2f58047c3f8ac5f058acea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Wed, 17 Aug 2022 02:33:26 +0200
Subject: Make FileView more type-safe.

---
 c/data.cpp | 64 --------------------------------------------------------------
 1 file changed, 64 deletions(-)

(limited to 'c/data.cpp')

diff --git a/c/data.cpp b/c/data.cpp
index 60decc9..9dd6ef8 100644
--- a/c/data.cpp
+++ b/c/data.cpp
@@ -1,65 +1 @@
-#include <memory>
-#include <vector>
-
 #include "data.h"
-#include "win.h"
-
-template <typename T>
-inline unsigned char* ValToBuf(const T& val, unsigned char* const buf)
-{
-	memcpy(buf, &val, sizeof(val));
-	return buf+sizeof(val);
-}
-
-template <typename T>
-inline unsigned char* BufToVal(unsigned char* const buf, T& val)
-{
-	memcpy(&val, buf, sizeof(val));
-	return buf+sizeof(val);
-}
-
-FileView::FileView(const wchar_t* const filename, const size_t cb)
-{
-	hf = CreateFile(filename, GENERIC_READ|GENERIC_WRITE,
-	    0, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
-	if (hf == INVALID_HANDLE_VALUE) {
-		if (GetLastError() == ERROR_FILE_NOT_FOUND) {
-			hf = CreateFile(filename, GENERIC_READ|GENERIC_WRITE,
-			    0, nullptr, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, nullptr);
-			if (hf == INVALID_HANDLE_VALUE)
-				throw Win32Error{};
-		} else
-			throw Win32Error{};
-	}
-
-	LARGE_INTEGER cbMap;
-	cbMap.QuadPart = cb;
-	hm = CreateFileMapping(hf, nullptr, PAGE_READWRITE,
-	    cbMap.HighPart, cbMap.LowPart, nullptr);
-	if (!hm)
-		throw Win32Error{};
-
-	view = reinterpret_cast<unsigned char*>(MapViewOfFile(hm, FILE_MAP_ALL_ACCESS, 0, 0, 0));
-	if (!view)
-		throw Win32Error{};
-}
-
-FileView::~FileView()
-{
-	FlushViewOfFile(view, 0);
-	UnmapViewOfFile(view);
-	CloseHandle(hm);
-	CloseHandle(hf);
-}
-
-void Write(unsigned char* buf, const ElvDataA& e)
-{
-	memcpy(buf, reinterpret_cast<const unsigned char*>(&e), sizeof(e));
-}
-
-ElvDataA* Read(unsigned char* const buf)
-{
-	if (buf[0] != 'a')
-		return nullptr;
-	return reinterpret_cast<ElvDataA*>(buf);
-}
-- 
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