Mirrors_Framework/rt-thread
1
0
Fork 0
mirror of https://github.com/RT-Thread/rt-thread.git synced 2026-09-21 18:57:16 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

[libc] Adjust libc.

Browse Source 
1. Move struct stat to libc_stat.h;
2. Defined a new FD_SET macros in libc_fdset.h.
This commit is contained in:
bernard
2017-10-31 09:52:49 +08:00
parent 6469a748b3
commit 7d673f921c
5 changed files with 95 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/dfs/include/dfs.h
-9
View File
@@ -80,15 +80,6 @@
extern "C" {
#endif
struct stat
{
struct rt_device* st_dev;
uint16_t st_mode;
uint32_t st_size;
time_t st_mtime;
uint32_t st_blksize;
};
struct statfs
{
size_t f_bsize; /* block size */
components/dfs/include/dfs_select.h
+7 -55
View File
@@ -1,65 +1,17 @@
#ifndef DFS_SELECT_H__
#define DFS_SELECT_H__
#ifdef RT_USING_LWIP
/* we use lwIP's structure definitions. */
#include <lwip/sockets.h>
#elif defined(RT_USING_POSIX)
#include <libc/libc_fdset.h>
#ifndef FD_SET
/* Get the total number of descriptors that we will have to support */
#define FD_SETSIZE (12)
/* We will use a 32-bit bitsets to represent the set of descriptors. How
* many uint32_t's do we need to span all descriptors?
*/
#if FD_SETSIZE <= 32
# define __SELECT_NUINT32 1
#elif FD_SETSIZE <= 64
# define __SELECT_NUINT32 2
#elif FD_SETSIZE <= 96
# define __SELECT_NUINT32 3
#elif FD_SETSIZE <= 128
# define __SELECT_NUINT32 4
#elif FD_SETSIZE <= 160
# define __SELECT_NUINT32 5
#elif FD_SETSIZE <= 192
# define __SELECT_NUINT32 6
#elif FD_SETSIZE <= 224
# define __SELECT_NUINT32 7
#elif FD_SETSIZE <= 256
# define __SELECT_NUINT32 8
#else
# warning "Larger fd_set needed"
#endif
/* These macros map a file descriptor to an index and bit number */
#define _FD_NDX(fd) ((fd) >> 5)
#define _FD_BIT(fd) ((fd) & 0x1f)
/* Standard helper macros */
#define FD_CLR(fd,set) \
((((fd_set*)(set))->arr)[_FD_NDX(fd)] &= ~(1 << _FD_BIT(fd)))
#define FD_SET(fd,set) \
((((fd_set*)(set))->arr)[_FD_NDX(fd)] |= (1 << _FD_BIT(fd)))
#define FD_ISSET(fd,set) \
(((((fd_set*)(set))->arr)[_FD_NDX(fd)] & (1 << _FD_BIT(fd))) != 0)
#define FD_ZERO(set) \
memset((set), 0, sizeof(fd_set))
typedef struct
{
uint32_t arr[__SELECT_NUINT32];
}fd_set;
#ifdef __cplusplus
extern "C" {
#endif
int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
#endif /* end of RT_USING_LWIP */
#ifdef __cplusplus
}
#endif
#endif