private long GetFreeDiskSpace()
{
long num3;
long num4;
string pathRoot = Path.GetPathRoot(Path.GetFullPath(this.FullLogFileName));
long userSpaceFree = -1L;
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, pathRoot).Demand();
if (!Microsoft.VisualBasic.CompilerServices.UnsafeNativeMethods.GetDiskFreeSpaceEx(pathRoot, ref userSpaceFree, ref num4, ref num3) || (userSpaceFree <= -1L))
{
throw ExceptionUtils.GetWin32Exception("ApplicationLog_FreeSpaceError", new string[0]);
}
return userSpaceFree;
}
private void Refresh()
{
if (this.m_IsOldOS)
{
this.m_MemoryStatus = new Microsoft.VisualBasic.CompilerServices.NativeMethods.MEMORYSTATUS();
Microsoft.VisualBasic.CompilerServices.NativeMethods.GlobalMemoryStatus(ref this.m_MemoryStatus);
}
else
{
this.m_MemoryStatusEx = new Microsoft.VisualBasic.CompilerServices.NativeMethods.MEMORYSTATUSEX();
this.m_MemoryStatusEx.Init();
if (!Microsoft.VisualBasic.CompilerServices.NativeMethods.GlobalMemoryStatusEx(ref this.m_MemoryStatusEx))
{
throw ExceptionUtils.GetWin32Exception("DiagnosticInfo_Memory", new string[0]);
}
}
}