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cda07b7da0
This commit replaces the stateful 'Ipc_client' type with the plain function 'ipc_call' that takes all the needed state as arguments. The stateful 'Ipc_server' class is retained but it moved from the public API to the internal ipc_server.h header. The kernel-specific implementations were cleaned up and simplified. E.g., the 'wait' function does no longer exist. The badge and exception code are no longer carried in the message buffers but are handled in kernel-specific ways. Issue #610 Issue #1832
75 lines
1.4 KiB
C++
75 lines
1.4 KiB
C++
/*
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* \brief Pistachio-specific layout of IPC message buffer
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* \author Julian Stecklina
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* \date 2007-01-10
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*/
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/*
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* Copyright (C) 2007-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _INCLUDE__BASE__IPC_MSGBUF_H_
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#define _INCLUDE__BASE__IPC_MSGBUF_H_
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namespace Genode {
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class Ipc_marshaller;
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/**
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* IPC message buffer layout
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*/
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class Msgbuf_base
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{
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protected:
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friend class Ipc_marshaller;
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size_t const _capacity;
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size_t _data_size = 0;
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char _msg_start[]; /* symbol marks start of message */
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Msgbuf_base(size_t capacity) : _capacity(capacity) { }
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public:
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/*
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* Begin of message buffer layout
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*/
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Pistachio::L4_Fpage_t rcv_fpage;
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/**
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* Return size of message buffer
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*/
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size_t capacity() const { return _capacity; };
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/**
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* Return pointer of message data payload
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*/
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void *data() { return &_msg_start[0]; };
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void const *data() const { return &_msg_start[0]; };
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size_t data_size() const { return _data_size; }
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};
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/**
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* Instance of IPC message buffer with specified buffer size
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*/
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template <unsigned BUF_SIZE>
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class Msgbuf : public Msgbuf_base
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{
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public:
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char buf[BUF_SIZE];
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Msgbuf() : Msgbuf_base(BUF_SIZE) { }
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};
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}
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#endif /* _INCLUDE__BASE__IPC_MSGBUF_H_ */
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