104 lines
2.1 KiB
C++
104 lines
2.1 KiB
C++
/*
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* \brief Stdio filesystem
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* \author Josef Soentgen
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* \date 2012-08-02
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*/
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/*
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* Copyright (C) 2012-2013 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 _NOUX__STDIO_FILE_SYSTEM_H_
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#define _NOUX__STDIO_FILE_SYSTEM_H_
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/* Genode includes */
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#include <base/printf.h>
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#include <util/string.h>
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#include <vfs/single_file_system.h>
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/* Noux includes */
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#include <noux_session/sysio.h>
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#include "terminal_connection.h"
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namespace Noux {
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class Stdio_file_system : public Vfs::Single_file_system
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{
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private:
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Terminal::Session_client *_terminal;
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bool _echo;
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public:
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Stdio_file_system(Xml_node config)
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:
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Single_file_system(NODE_TYPE_CHAR_DEVICE, name(), config),
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_terminal(terminal()),
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_echo(true)
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{ }
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static char const *name() { return "stdio"; }
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/********************************
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** File I/O service interface **
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********************************/
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Write_result write(Vfs::Vfs_handle *, char const *buf, size_t buf_size,
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size_t &out_count) override
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{
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out_count = _terminal->write(buf, buf_size);
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return WRITE_OK;
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}
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Read_result read(Vfs::Vfs_handle *, char *dst, size_t count, size_t &out_count) override
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{
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out_count = _terminal->read(dst, count);
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if (_echo)
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_terminal->write(dst, count);
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return READ_OK;
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}
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Ftruncate_result ftruncate(Vfs::Vfs_handle *, size_t) override
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{
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return FTRUNCATE_OK;
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}
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Ioctl_result ioctl(Vfs::Vfs_handle *vfs_handle, Ioctl_opcode opcode,
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Ioctl_arg arg, Ioctl_out &out) override
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{
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switch (opcode) {
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case Vfs::File_io_service::IOCTL_OP_TIOCSETAF:
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{
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_echo = (arg & (Vfs::File_io_service::IOCTL_VAL_ECHO));
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return IOCTL_OK;
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}
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case Vfs::File_io_service::IOCTL_OP_TIOCSETAW:
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{
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PDBG("OP_TIOCSETAW not implemented");
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return IOCTL_ERR_INVALID;
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}
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default:
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PDBG("invalid ioctl(request=0x%x)", opcode);
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break;
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}
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return IOCTL_ERR_INVALID;
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}
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};
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}
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#endif /* _NOUX__STDIO_FILE_SYSTEM_H_ */
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