зеркало из https://github.com/mozilla/gecko-dev.git
59 строки
1.4 KiB
C++
59 строки
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:set ts=2 sw=2 sts=2 et cindent: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef SimpleBuffer_h__
|
|
#define SimpleBuffer_h__
|
|
|
|
/*
|
|
This class is similar to a nsPipe except it does not have any locking, stores
|
|
an unbounded amount of data, can only be used on one thread, and has much
|
|
simpler result code semantics to deal with.
|
|
*/
|
|
|
|
#include "prtypes.h"
|
|
#include "mozilla/LinkedList.h"
|
|
#include "nsIThreadInternal.h"
|
|
|
|
namespace mozilla {
|
|
namespace net {
|
|
|
|
class SimpleBufferPage : public LinkedListElement<SimpleBufferPage>
|
|
{
|
|
public:
|
|
SimpleBufferPage() : mReadOffset(0), mWriteOffset(0) {}
|
|
static const size_t kSimpleBufferPageSize = 32000;
|
|
|
|
private:
|
|
friend class SimpleBuffer;
|
|
char mBuffer[kSimpleBufferPageSize];
|
|
size_t mReadOffset;
|
|
size_t mWriteOffset;
|
|
};
|
|
|
|
class SimpleBuffer
|
|
{
|
|
public:
|
|
SimpleBuffer();
|
|
~SimpleBuffer() = default;
|
|
|
|
nsresult Write(char *stc, size_t len); // return OK or OUT_OF_MEMORY
|
|
size_t Read(char *dest, size_t maxLen); // return bytes read
|
|
size_t Available();
|
|
void Clear();
|
|
|
|
private:
|
|
NS_DECL_OWNINGTHREAD
|
|
|
|
nsresult mStatus;
|
|
AutoCleanLinkedList<SimpleBufferPage> mBufferList;
|
|
size_t mAvailable;
|
|
};
|
|
|
|
} // namespace net
|
|
} // namespace mozilla
|
|
|
|
#endif
|