haiku/headers/private/app/LinkReceiver.h
Stephan Aßmus 600fbd78e4 * BView::FillRegion() sends the BRegion data instead of decomposing
it and rebuilding it on the server side (that causes a huge speed
  up for regions containing many rects)
* There is a method in ServerLink that could have been used, but I
  actually needed to add the direct BRegion support to LinkReceiver
* added LinkReceiver as a friend to BRegion class
* ServerApp and ServerWindow keep the CursorManager locked after they
  have retrieved a cursor until they have called Acquire() on the
  cursor. (Axel: what good is using atomic* stuff in Acquire() and
  Release() if we have to protect this by a lock anyways?)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16957 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-04-01 16:56:10 +00:00

65 lines
1.5 KiB
C++

/*
* Copyright 2001-2006, Haiku.
* Distributed under the terms of the MIT License.
*
* Authors:
* DarkWyrm <bpmagic@columbus.rr.com>
* Pahtz <pahtz@yahoo.com.au>
* Axel Dörfler, axeld@pinc-software.de
*/
#ifndef _LINK_RECEIVER_H
#define _LINK_RECEIVER_H
#include <OS.h>
class BString;
class BRegion;
namespace BPrivate {
class LinkReceiver {
public:
LinkReceiver(port_id port);
virtual ~LinkReceiver(void);
void SetPort(port_id port);
port_id Port(void) { return fReceivePort; }
status_t GetNextMessage(int32& code, bigtime_t timeout = B_INFINITE_TIMEOUT);
bool HasMessages() const;
bool NeedsReply() const;
int32 Code() const;
virtual status_t Read(void* data, ssize_t size);
status_t ReadString(char** _string, size_t* _length = NULL);
status_t ReadString(BString& string, size_t* _length = NULL);
status_t ReadString(char* buffer, size_t bufferSize);
status_t ReadRegion(BRegion* region);
template <class Type> status_t Read(Type *data)
{ return Read(data, sizeof(Type)); }
protected:
virtual status_t ReadFromPort(bigtime_t timeout);
virtual status_t AdjustReplyBuffer(bigtime_t timeout);
void ResetBuffer();
port_id fReceivePort;
char* fRecvBuffer;
int32 fRecvPosition; //current read position
int32 fRecvStart; //start of current message
int32 fRecvBufferSize;
int32 fDataSize; //size of data in recv buffer
int32 fReplySize; //size of current reply message
status_t fReadError; //Read failed for current message
};
} // namespace BPrivate
#endif // _LINK_RECEIVER_H