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sys: remove obsolete posix_io code

cc430
Kaspar Schleiser 7 years ago
parent
commit
41ece232fa
  1. 92
      sys/include/posix_io.h
  2. 1
      sys/posix/fd.c
  3. 69
      sys/posix/posix_io.c

92
sys/include/posix_io.h

@ -1,92 +0,0 @@
/*
* Copyright (C) 2013 INRIA.
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup posix
* @{
* @file
* @brief POSIX-like IO
*
* @author Kaspar Schleiser <kaspar@schleiser.de>
* @author Stephan Zeisberg <zeisberg@mi.fu-berlin.de>
* @author Oliver Hahm <oleg@hobbykeller.org>
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*/
#ifndef __READ_H
#define __READ_H
#include "kernel_types.h"
#ifdef __cplusplus
extern "C" {
#endif
#define OPEN 0
#define CLOSE 1
#define READ 2
#define WRITE 3
/**
* @brief POSIX IO ringbuffer
*/
struct posix_iop_t {
/** number of bytes */
int nbytes;
/** array for the ringbuffer */
char *buffer;
};
/**
* @brief Opens a file descriptor - represented by a corresponding thread
*
* @param[in] pid The thread managing the fd to open
* @param[in] flags Access modes
*
* @return 0 on success
* @return a negative value in error case
*/
int posix_open(int pid, int flags);
/**
* @brief Closes an open file descriptor
*
* @param[in] pid The opened thread
*
* @return 0 on success
* @return a negative value in error case
*/
int posix_close(int pid);
/**
* @brief Reads from an open file descriptor
*
* @param[in] pid The thread managing the open fd
* @param[out] buffer Buffer to fill
* @param[in] bufsize Read up to that many bytes into @p buffer
*
* @return the number of read bytes
*/
int posix_read(int pid, char *buffer, int bufsize);
/**
* @brief Writes to an open file descriptor
*
* @param[in] pid The thread managing the open fd
* @param[in] buffer Buffer to write
* @param[in] bufsize Write that many bytes from @p buffer
*
* @return the number of written bytes
*/
int posix_write(int pid, char *buffer, int bufsize);
#ifdef __cplusplus
}
#endif
/** @} */
#endif /* __READ_H */

1
sys/posix/fd.c

@ -20,7 +20,6 @@
#include <stdlib.h>
#include <string.h>
#include "posix_io.h"
#include "unistd.h"
#include "fd.h"

69
sys/posix/posix_io.c

@ -1,69 +0,0 @@
/**
* POSIX implementation of basic IO operations.
*
* Copyright (C) 2013, INRIA.
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*
* @ingroup sys_posix
* @{
* @file
* @brief Implementation of basic POSIX IO functionality.
* @author Kaspar Schleiser <kaspar@schleiser.de>
* @}
*/
#include "thread.h"
#include "msg.h"
#include "posix_io.h"
static int _posix_fileop(kernel_pid_t pid, int op, int flags)
{
msg_t m;
m.type = op;
m.content.value = flags;
msg_send_receive(&m, &m, pid);
return m.content.value;
}
static int _posix_fileop_data(kernel_pid_t pid, int op, char *buffer, int nbytes)
{
struct posix_iop_t r;
r.nbytes = nbytes;
r.buffer = buffer;
msg_t m;
m.type = op;
m.content.ptr = (char *) &r;
msg_send_receive(&m, &m, pid);
return r.nbytes;
}
int posix_open(int pid, int flags)
{
if (pid == KERNEL_PID_UNDEF) {
return -1;
}
return _posix_fileop((kernel_pid_t) pid, OPEN, flags);
}
int posix_close(int pid)
{
return _posix_fileop((kernel_pid_t) pid, CLOSE, 0);
}
int posix_read(int pid, char *buffer, int bufsize)
{
return _posix_fileop_data((kernel_pid_t) pid, READ, buffer, bufsize);
}
int posix_write(int pid, char *buffer, int bufsize)
{
return _posix_fileop_data((kernel_pid_t) pid, WRITE, buffer, bufsize);
}
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