Rename dd to base

[reactos.git] / reactos / drivers / dd / serial / circularbuffer.c

diff --git a/reactos/drivers/dd/serial/circularbuffer.c b/reactos/drivers/dd/serial/circularbuffer.c
deleted file mode 100644 (file)
index bda1d5c..0000000
--- a/reactos/drivers/dd/serial/circularbuffer.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * COPYRIGHT:       See COPYING in the top level directory
- * PROJECT:         Serial port driver
- * FILE:            drivers/dd/serial/circularbuffer.c
- * PURPOSE:         Operations on a circular buffer
- *
- * PROGRAMMERS:     Hervé Poussineau (hpoussin@reactos.com)
- */
-
-#define NDEBUG
-#include "serial.h"
-
-NTSTATUS
-InitializeCircularBuffer(
-       IN PCIRCULAR_BUFFER pBuffer,
-       IN ULONG BufferSize)
-{
-       DPRINT("Serial: InitializeCircularBuffer(pBuffer %p, BufferSize %lu)\n", pBuffer, BufferSize);
-       ASSERT(pBuffer);
-       pBuffer->Buffer = (PUCHAR)ExAllocatePoolWithTag(NonPagedPool, BufferSize * sizeof(UCHAR), SERIAL_TAG);
-       if (!pBuffer->Buffer)
-               return STATUS_INSUFFICIENT_RESOURCES;
-       pBuffer->Length = BufferSize;
-       pBuffer->ReadPosition = pBuffer->WritePosition = 0;
-       return STATUS_SUCCESS;
-}
-
-NTSTATUS
-FreeCircularBuffer(
-       IN PCIRCULAR_BUFFER pBuffer)
-{
-       DPRINT("Serial: FreeCircularBuffer(pBuffer %p)\n", pBuffer);
-       ASSERT(pBuffer);
-       if (pBuffer->Buffer != NULL)
-               ExFreePoolWithTag(pBuffer->Buffer, SERIAL_TAG);
-       return STATUS_SUCCESS;
-}
-
-BOOLEAN
-IsCircularBufferEmpty(
-       IN PCIRCULAR_BUFFER pBuffer)
-{
-       DPRINT("Serial: IsCircularBufferEmpty(pBuffer %p)\n", pBuffer);
-       ASSERT(pBuffer);
-       return (pBuffer->ReadPosition == pBuffer->WritePosition);
-}
-
-NTSTATUS
-PushCircularBufferEntry(
-       IN PCIRCULAR_BUFFER pBuffer,
-       IN UCHAR Entry)
-{
-       ULONG NextPosition;
-       DPRINT("Serial: PushCircularBufferEntry(pBuffer %p, Entry 0x%x)\n", pBuffer, Entry);
-       ASSERT(pBuffer);
-       ASSERT(pBuffer->Length);
-       NextPosition = (pBuffer->WritePosition + 1) % pBuffer->Length;
-       if (NextPosition == pBuffer->ReadPosition)
-               return STATUS_BUFFER_TOO_SMALL;
-       pBuffer->Buffer[pBuffer->WritePosition] = Entry;
-       pBuffer->WritePosition = NextPosition;
-       return STATUS_SUCCESS;
-}
-
-NTSTATUS
-PopCircularBufferEntry(
-       IN PCIRCULAR_BUFFER pBuffer,
-       OUT PUCHAR Entry)
-{
-       DPRINT("Serial: PopCircularBufferEntry(pBuffer %p)\n", pBuffer);
-       ASSERT(pBuffer);
-       ASSERT(pBuffer->Length);
-       if (IsCircularBufferEmpty(pBuffer))
-               return STATUS_ARRAY_BOUNDS_EXCEEDED;
-       *Entry = pBuffer->Buffer[pBuffer->ReadPosition];
-       pBuffer->ReadPosition = (pBuffer->ReadPosition + 1) % pBuffer->Length;
-       return STATUS_SUCCESS;
-}
-
-NTSTATUS
-IncreaseCircularBufferSize(
-       IN PCIRCULAR_BUFFER pBuffer,
-       IN ULONG NewBufferSize)
-{
-       PUCHAR NewBuffer;
-
-       DPRINT("Serial: IncreaseCircularBufferSize(pBuffer %p, NewBufferSize %lu)\n", pBuffer, NewBufferSize);
-       ASSERT(pBuffer);
-       ASSERT(pBuffer->Length);
-       if (pBuffer->Length > NewBufferSize)
-               return STATUS_INVALID_PARAMETER;
-       else if (pBuffer->Length == NewBufferSize)
-               return STATUS_SUCCESS;
-
-       NewBuffer = (PUCHAR)ExAllocatePoolWithTag(NonPagedPool, NewBufferSize * sizeof(UCHAR), SERIAL_TAG);
-       if (!NewBuffer)
-               return STATUS_INSUFFICIENT_RESOURCES;
-       RtlCopyMemory(NewBuffer, pBuffer->Buffer, pBuffer->Length * sizeof(UCHAR));
-       ExFreePoolWithTag(pBuffer->Buffer, SERIAL_TAG);
-       pBuffer->Buffer = NewBuffer;
-       pBuffer->Length = NewBufferSize;
-       return STATUS_SUCCESS;
-}