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Merge pull request #4321 from kaspar030/cleanup_posix

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sys: cleanup posix compat code
This commit is contained in:
René Kijewski 2015-11-26 20:39:30 +01:00
commit ab3345ac5a
14 changed files with 97 additions and 312 deletions
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3
Makefile.dep
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@ -283,8 +283,7 @@ ifneq (,$(filter uart_stdio,$(USEMODULE)))
endif
ifneq (,$(filter posix,$(USEMODULE)))
USEMODULE += timex
USEMODULE += vtimer
USEMODULE += xtimer
endif
ifneq (,$(filter posix_semaphore,$(USEMODULE)))

32
cpu/atmega_common/avr-libc-extra/unistd.h Normal file
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@ -0,0 +1,32 @@
/*
* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
*
* 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.
*/
#ifndef UNISTD_H_
#define UNISTD_H_
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#define STDIN_FILENO 0 ///< stdin file descriptor
#define STDOUT_FILENO 1 ///< stdout file descriptor
#define STDERR_FILENO 2 ///< stderr file descriptor
int close(int fildes);
typedef uint32_t useconds_t;
int usleep(useconds_t usec);
unsigned int sleep(unsigned int seconds);
#ifdef __cplusplus
}
#endif
#endif /* UNISTD_H_ */

32
cpu/msp430-common/include/unistd.h Normal file
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@ -0,0 +1,32 @@
/*
* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
*
* 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.
*/
#ifndef UNISTD_H_
#define UNISTD_H_
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#define STDIN_FILENO 0 ///< stdin file descriptor
#define STDOUT_FILENO 1 ///< stdout file descriptor
#define STDERR_FILENO 2 ///< stderr file descriptor
int close(int fildes);
typedef uint32_t useconds_t;
int usleep(useconds_t usec);
unsigned int sleep(unsigned int seconds);
#ifdef __cplusplus
}
#endif
#endif /* UNISTD_H_ */

92
sys/include/posix_io.h
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@ -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
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@ -20,7 +20,6 @@
#include <stdlib.h>
#include <string.h>
#include "posix_io.h"
#include "unistd.h"
#include "fd.h"

119
sys/posix/include/unistd.h
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@ -1,119 +0,0 @@
/*
* Copyright (C) 2013 Freie Universität Berlin
*
* 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.
*/
/**
* @addtogroup posix
* @{
*/
/**
* @file
* @brief standard symbolic constants and types
* @see <a href="http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html">
* The Open Group Base Specifications Issue 7, <unistd.h>
* </a>
*
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*/
#ifndef _UNISTD_H
#define _UNISTD_H
#include <stdint.h>
#include "timex.h"
#include "vtimer.h"
#ifdef __cplusplus
extern "C" {
#endif
#define STDIN_FILENO 0 ///< stdin file descriptor
#define STDOUT_FILENO 1 ///< stdout file descriptor
#define STDERR_FILENO 2 ///< stderr file descriptor
/**
* @brief Close a file descriptor.
* @details shall deallocate the file descriptor indicated by *fildes*. To
* deallocate means to make the file descriptor available for return
* by subsequent calls to open() or other functions that allocate file
* descriptors. All outstanding record locks owned by the process on
* the file associated with the file descriptor shall be removed (that
* is, unlocked).
*
* @see <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/close.html">
* The Open Group Base Specification Issue 7, close
* </a>
*
* @param[in] fildes The file descriptor to the file which is to close.
* @return Upon successful completion, 0 shall be returned; otherwise, -1
* shall be returned and errno set to indicate the error.
*/
int close(int fildes);
/**
* @name Microseconds data type
* @{
*/
#ifndef __USECONDS_T_TYPE
#if !(defined(__MACH__) || defined(__FreeBSD__))
typedef unsigned long __USECONDS_T_TYPE;
typedef __USECONDS_T_TYPE __useconds_t;
#else
#ifdef __MACH__
typedef __darwin_useconds_t __useconds_t;
#endif
#endif
#endif
typedef __useconds_t useconds_t;
/** @} */
/**
* @brief the caller will sleep for given amount of micro seconds
* @details The usleep() function will cause the calling thread to be
* suspended from execution until either the number of real-time microseconds
* specified by the argument useconds has elapsed or a signal is delivered to
* the calling thread and its action is to invoke a signal-catching function
* or to terminate the process. The suspension time may be longer than
* requested due to the scheduling of other activity by the system.
*
* @see <a href="http://pubs.opengroup.org/onlinepubs/7908799/xsh/usleep.html">
* The Open Group Base Specification Issue 2, usleep
* </a>
*
* @param useconds time to sleep in micro seconds
* @return 0 on success
*/
int usleep(useconds_t useconds);
/**
* @brief the caller will sleep for given amount of seconds
* @details The sleep() function shall cause the calling thread to be suspended
* from execution until either the number of realtime seconds
* specified by the argument seconds has elapsed or a signal is
* delivered to the calling thread and its action is to invoke a
* signal-catching function or to terminate the process. The
* suspension time may be longer than requested due to the scheduling
* of other activity by the system.
*
* @see <a href="http://pubs.opengroup.org/onlinepubs/009695399/functions/sleep.html">
* The Open Group Base Specification Issue 6, sleep
* </a>
*
* @param seconds time to sleep in seconds
* @return 0 on success
*/
unsigned int sleep(unsigned int seconds);
#ifdef __cplusplus
}
#endif
/**
* @}
*/
#endif /* _UNISTD_H */

69
sys/posix/posix_io.c
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@ -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);
}

17
sys/posix/unistd.c
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@ -14,9 +14,9 @@
* @author Christian Mehlis <mehlis@inf.fu-berlin.de>
*/
#include <errno.h>
#include <unistd.h>
#include "fd.h"
#include "unistd.h"
int close(int fildes)
{
@ -37,21 +37,6 @@ int close(int fildes)
return 0;
}
int usleep(useconds_t useconds)
{
timex_t time = timex_set(0, useconds);
timex_normalize(&time);
vtimer_sleep(time);
return 0;
}
unsigned int sleep(unsigned int seconds)
{
timex_t time = timex_set(seconds, 0);
vtimer_sleep(time);
return 0;
}
/**
* @}
*/

30
sys/xtimer/xtimer_posix.c Normal file
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@ -0,0 +1,30 @@
/**
* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
*
* 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 xtimer
* @{
* @file
* @brief xtimer posix wrapper
* @author Kaspar Schleiser <kaspar@schleiser.de>
* @}
*/
#include <unistd.h>
#include "xtimer.h"
unsigned int sleep(unsigned int seconds)
{
xtimer_usleep64(seconds*SEC_IN_USEC);
return 0;
}
int usleep(useconds_t usec)
{
xtimer_usleep64(usec);
return 0;
}

6
tests/posix_sleep/Makefile
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@ -1,12 +1,6 @@
APPLICATION = posix_sleep
include ../Makefile.tests_common
BOARD_BLACKLIST := arduino-mega2560
# arduino-mega2560: warning: iteration 2u invokes undefined behavior
# [-Waggressive-loop-optimizations]
USEMODULE += posix
DISABLE_MODULE += auto_init
include $(RIOTBASE)/Makefile.include

2
tests/posix_sleep/main.c
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@ -25,7 +25,7 @@ int main(void)
{
puts("usleep 1 x 1000*1000");
for (int i = 0; i < 10; i++) {
useconds_t us = i*1000*1000;
useconds_t us = i*1000u*1000u;
printf("calling usleep(%u)\n", (unsigned int) us);
usleep(us);
puts("wake up");

2
tests/pthread/Makefile
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@ -7,6 +7,4 @@ BOARD_BLACKLIST := arduino-mega2560
USEMODULE += posix
USEMODULE += pthread
DISABLE_MODULE += auto_init
include $(RIOTBASE)/Makefile.include

2
tests/pthread_cooperation/Makefile
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@ -7,6 +7,4 @@ BOARD_BLACKLIST := arduino-mega2560
USEMODULE += posix
USEMODULE += pthread
DISABLE_MODULE += auto_init
include $(RIOTBASE)/Makefile.include

2
tests/pthread_tls/Makefile
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@ -7,6 +7,4 @@ BOARD_BLACKLIST := arduino-mega2560
USEMODULE += posix
USEMODULE += pthread
DISABLE_MODULE += auto_init
include $(RIOTBASE)/Makefile.include