整体一次性提交2.0的代码

src/dectfilechanges.cpp

@@ -0,0 +1,72 @@
+#include "dectfilechanges.h"
+
+#ifdef WIN32
+
+DectFileChanges::DectFileChanges():m_lastFileSize(0), m_curFileSize(0)
+{
+	_szFile = NULL;
+	_dwNotifyFilter = 0;
+}
+
+
+DectFileChanges::~DectFileChanges()
+{
+}
+
+
+BOOL DectFileChanges::DetectChanges() {
+
+	WIN32_FILE_ATTRIBUTE_DATA fInfo;
+	BOOL rValue = FALSE;
+	::GetFileAttributesEx(_szFile, GetFileExInfoStandard, &fInfo);
+
+	if ((_dwNotifyFilter & FILE_NOTIFY_CHANGE_SIZE) && (fInfo.nFileSizeHigh != _lastFileInfo.nFileSizeHigh || fInfo.nFileSizeLow != _lastFileInfo.nFileSizeLow)) {
+		rValue = TRUE;
+	}
+
+	if ((_dwNotifyFilter & FILE_NOTIFY_CHANGE_LAST_WRITE) && (fInfo.ftLastWriteTime.dwHighDateTime != _lastFileInfo.ftLastWriteTime.dwHighDateTime || fInfo.ftLastWriteTime.dwLowDateTime != _lastFileInfo.ftLastWriteTime.dwLowDateTime)) {
+		rValue = TRUE;
+	}
+
+	if (rValue)
+	{
+		m_lastFileSize = getFileSize(_lastFileInfo);
+	}
+	_lastFileInfo = fInfo;
+
+	if (rValue)
+	{
+		m_curFileSize = getFileSize(_lastFileInfo);
+	}
+	return rValue;
+}
+
+void DectFileChanges::AddFile(LPCTSTR szFile, DWORD dwNotifyFilter)
+{
+	_szFile = szFile;
+	_dwNotifyFilter = dwNotifyFilter;
+	::GetFileAttributesEx(szFile, GetFileExInfoStandard, &_lastFileInfo);
+}
+
+
+void DectFileChanges::Terminate()
+{
+	_szFile = NULL;
+	_dwNotifyFilter = 0;
+}
+quint64 DectFileChanges::getFileSize(WIN32_FILE_ATTRIBUTE_DATA& data)
+{
+	quint64 fileSize = data.nFileSizeHigh;
+	fileSize = (fileSize << 32);
+	fileSize += data.nFileSizeLow;
+
+	return fileSize;
+}
+
+void DectFileChanges::getDiffFileSize(quint64& lastSize, quint64& curSize)
+{
+	lastSize = m_lastFileSize;
+	curSize = m_curFileSize;
+}
+
+#endif