public string Journal; // Name of the journal file
internal RC CreateFile()
{
RC rc = RC.OK;
if (Real == null)
{
VFile real = null;
VSystem.OPEN dummy;
rc = Vfs.Open(Journal, Real, Flags, out dummy);
if (rc == RC.OK)
{
Real = real;
if (Size > 0)
{
Debug.Assert(Size <= BufferLength);
rc = Real.Write(Buffer, Size, 0);
}
if (rc != RC.OK)
{
// If an error occurred while writing to the file, close it before returning. This way, SQLite uses the in-memory journal data to
// roll back changes made to the internal page-cache before this function was called.
Real.Close();
Real = null;
}
}
}
return(rc);
}
// extensions
#if ENABLE_ATOMIC_WRITE
internal static RC JournalVFileOpen(VSystem vfs, string name, ref VFile file, VSystem.OPEN flags, int bufferLength)
{
var p = new JournalVFile();
if (bufferLength > 0)
{
p.Buffer = C._allocZero(bufferLength);
}
else
{
VSystem.OPEN dummy;
return(vfs.Open(name, p, flags, out dummy));
}
p.Type = 2;
p.BufferLength = bufferLength;
p.Flags = flags;
p.Journal = name;
p.Vfs = vfs;
file = p;
return(RC.OK);
}
// extensions
internal static RC JournalVFileOpen(VSystem vfs, string name, ref VFile file, VSystem.OPEN flags, int bufferLength)
{
var p = new JournalVFile();
if (bufferLength > 0)
p.Buffer = SysEx.Alloc(bufferLength, true);
else
{
VSystem.OPEN dummy;
return vfs.Open(name, p, flags, out dummy);
}
p.Type = 2;
p.BufferLength = bufferLength;
p.Flags = flags;
p.Journal = name;
p.Vfs = vfs;
file = p;
return RC.OK;
}