improve and beautify syscalls

This commit is contained in:
Meco Man 2021-02-21 18:20:45 +08:00
parent 3ebb48fae1
commit 19ef112016
3 changed files with 42 additions and 23 deletions

View File

@ -15,7 +15,9 @@
typedef int32_t clockid_t;
typedef int32_t key_t; /* Used for interprocess communication. */
typedef int32_t pid_t; /* Used for process IDs and process group IDs. */
typedef int pid_t; /* Used for process IDs and process group IDs. */
typedef unsigned short uid_t;
typedef unsigned short gid_t;
#ifndef ARCH_CPU_64BIT
typedef signed int ssize_t; /* Used for a count of bytes or an error indication. */
#else

View File

@ -14,7 +14,9 @@
typedef int32_t clockid_t;
typedef int32_t key_t; /* Used for interprocess communication. */
typedef int32_t pid_t; /* Used for process IDs and process group IDs. */
typedef int pid_t; /* Used for process IDs and process group IDs. */
typedef unsigned short uid_t;
typedef unsigned short gid_t;
#ifndef ARCH_CPU_64BIT
typedef signed int ssize_t; /* Used for a count of bytes or an error indication. */
#else

View File

@ -7,12 +7,13 @@
* Date Author Notes
* 2021-02-11 Meco Man remove _gettimeofday_r() and _times_r()
* 2020-02-13 Meco Man re-implement exit() and abort()
* 2020-02-21 Meco Man improve and beautify syscalls
*/
#include <reent.h>
#include <sys/errno.h>
#include <sys/time.h>
#include <errno.h>
#include <stdio.h>
#include <sys/time.h>
#include <rtthread.h>
@ -38,7 +39,9 @@ int
_close_r(struct _reent *ptr, int fd)
{
#ifndef RT_USING_DFS
return 0;
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
#else
return close(fd);
#endif
@ -85,11 +88,11 @@ _getpid_r(struct _reent *ptr)
int
_isatty_r(struct _reent *ptr, int fd)
{
if (fd >=0 && fd < 3) return 1;
if (fd >=0 && fd < 3)
return 1;
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
ptr->_errno = ENOTTY ;
return 0;
}
int
@ -112,7 +115,9 @@ _off_t
_lseek_r(struct _reent *ptr, int fd, _off_t pos, int whence)
{
#ifndef RT_USING_DFS
return 0;
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
#else
_off_t rc;
@ -125,7 +130,9 @@ int
_mkdir_r(struct _reent *ptr, const char *name, int mode)
{
#ifndef RT_USING_DFS
return 0;
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
#else
int rc;
@ -138,7 +145,9 @@ int
_open_r(struct _reent *ptr, const char *file, int flags, int mode)
{
#ifndef RT_USING_DFS
return 0;
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
#else
int rc;
@ -151,7 +160,9 @@ _ssize_t
_read_r(struct _reent *ptr, int fd, void *buf, size_t nbytes)
{
#ifndef RT_USING_DFS
return 0;
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
#else
_ssize_t rc;
@ -164,7 +175,9 @@ int
_rename_r(struct _reent *ptr, const char *old, const char *new)
{
#ifndef RT_USING_DFS
return 0;
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
#else
int rc;
@ -184,7 +197,9 @@ int
_stat_r(struct _reent *ptr, const char *file, struct stat *pstat)
{
#ifndef RT_USING_DFS
return 0;
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
#else
int rc;
@ -197,6 +212,8 @@ int
_unlink_r(struct _reent *ptr, const char *file)
{
#ifndef RT_USING_DFS
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
#else
return unlink(file);
@ -211,11 +228,11 @@ _wait_r(struct _reent *ptr, int *status)
return -1;
}
#ifdef RT_USING_DEVICE
_ssize_t
_write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
{
#ifndef RT_USING_DFS
#ifdef RT_USING_DEVICE
if (fileno(stdout) == fd)
{
rt_device_t console;
@ -225,7 +242,11 @@ _write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
}
return 0;
#else
/* return "not supported" */
ptr->_errno = ENOTSUP;
return -1;
#endif /*RT_USING_DEVICE*/
#else
_ssize_t rc;
@ -233,7 +254,6 @@ _write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
return rc;
#endif
}
#endif
/* Memory routine */
void *
@ -304,11 +324,6 @@ void __libc_init_array(void)
/* we not use __libc init_aray to initialize C++ objects */
}
uid_t getuid(void)
{
return 0;
}
mode_t umask(mode_t mask)
{
return 022;