internal void Unreserve(ulong lFree, ulong quota) {
if (IsRoaming()) // No Quota enforcement for roaming
return;
ulong free = lFree;
lock (m_internalLock) {
if (m_bDisposed)
throw new ObjectDisposedException(null, Environment.GetResourceString("IsolatedStorage_StoreNotOpen"));
if (m_closed)
throw new InvalidOperationException(
Environment.GetResourceString(
"IsolatedStorage_StoreNotOpen"));
if (InvalidFileHandle)
m_handle = Open(m_InfoFile, GetSyncObjectName());
Reserve(m_handle, quota, free, true);
}
}
internal static extern bool GetQuota(SafeIsolatedStorageFileHandle scope, out long quota);
protected override bool ReleaseHandle()
{
SafeIsolatedStorageFileHandle.Close(this.handle);
return(true);
}
internal void Unreserve(ulong lFree, ulong quota)
{
if (!base.IsRoaming())
{
ulong plReserve = lFree;
lock (this.m_internalLock)
{
if (this.m_bDisposed)
{
throw new ObjectDisposedException(null, Environment.GetResourceString("IsolatedStorage_StoreNotOpen"));
}
if (this.m_closed)
{
throw new InvalidOperationException(Environment.GetResourceString("IsolatedStorage_StoreNotOpen"));
}
if (this.InvalidFileHandle)
{
this.m_handle = Open(this.m_InfoFile, this.GetSyncObjectName());
}
Reserve(this.m_handle, quota, plReserve, true);
}
}
}
private void UpdateQuotaFromInfoFile()
{
bool locked = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
this.Lock(ref locked);
lock (this.m_internalLock)
{
if (this.InvalidFileHandle)
{
this.m_handle = Open(this.m_InfoFile, this.GetSyncObjectName());
}
long quota = 0L;
if (GetQuota(this.m_handle, out quota))
{
base.Quota = quota;
}
}
}
finally
{
if (locked)
{
this.Unlock();
}
}
}
internal void Unlock()
{
if (!base.IsRoaming())
{
lock (this.m_internalLock)
{
if (this.m_bDisposed)
{
throw new ObjectDisposedException(null, Environment.GetResourceString("IsolatedStorage_StoreNotOpen"));
}
if (this.m_closed)
{
throw new InvalidOperationException(Environment.GetResourceString("IsolatedStorage_StoreNotOpen"));
}
if (this.InvalidFileHandle)
{
this.m_handle = Open(this.m_InfoFile, this.GetSyncObjectName());
}
Lock(this.m_handle, false);
}
}
}
internal static extern void SetQuota(SafeIsolatedStorageFileHandle scope, long quota);
internal static extern void Reserve(SafeIsolatedStorageFileHandle handle, ulong plQuota, ulong plReserve, [MarshalAs(UnmanagedType.Bool)] bool fFree);
internal static extern bool Lock(SafeIsolatedStorageFileHandle handle, [MarshalAs(UnmanagedType.Bool)] bool fLock);
internal static extern ulong GetUsage(SafeIsolatedStorageFileHandle handle);
