55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/*
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* Copyright 2005, Ingo Weinhold <bonefish@cs.tu-berlin.de>.
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* All rights reserved. Distributed under the terms of the MIT License.
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*/
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#ifndef _BOOT_REMOTE_DISK_H
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#define _BOOT_REMOTE_DISK_H
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#include <boot/vfs.h>
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#include <boot/net/NetDefs.h>
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#include <boot/net/RemoteDiskDefs.h>
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class UDPPacket;
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class UDPSocket;
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class RemoteDisk : public Node {
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public:
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RemoteDisk();
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~RemoteDisk();
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status_t Init(ip_addr_t serverAddress, uint16 serverPort, off_t imageSize);
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virtual ssize_t ReadAt(void *cookie, off_t pos, void *buffer,
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size_t bufferSize);
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virtual ssize_t WriteAt(void *cookie, off_t pos, const void *buffer,
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size_t bufferSize);
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virtual status_t GetName(char *nameBuffer, size_t bufferSize) const;
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virtual off_t Size() const;
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ip_addr_t ServerIPAddress() const;
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uint16 ServerPort() const;
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static RemoteDisk *FindAnyRemoteDisk();
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private:
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ssize_t _ReadFromPacket(off_t &pos, uint8 *&buffer, size_t &bufferSize);
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static status_t _SendRequest(UDPSocket *socket, ip_addr_t serverAddress,
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uint16 serverPort, remote_disk_header *request, size_t size,
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uint8 expectedReply, UDPPacket **packet);
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status_t _SendRequest(remote_disk_header *request, size_t size,
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uint8 expectedReply, UDPPacket **packet);
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private:
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ip_addr_t fServerAddress;
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uint16 fServerPort;
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off_t fImageSize;
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uint64 fRequestID;
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UDPSocket *fSocket;
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UDPPacket *fPacket;
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};
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#endif // _BOOT_REMOTE_DISK_H
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