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Diffstat (limited to 'nuttx/include/stdio.h')
| -rw-r--r-- | nuttx/include/stdio.h | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/nuttx/include/stdio.h b/nuttx/include/stdio.h new file mode 100644 index 0000000000..b210dc708e --- /dev/null +++ b/nuttx/include/stdio.h @@ -0,0 +1,285 @@ +/************************************************************ + * stdio.h + * + * Copyright (C) 2007 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name Gregory Nutt nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************/ + +#ifndef __STDIO_H +#define __STDIO_H + +/************************************************************ + * Included Files + ************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> +#include <stdarg.h> +#include <sched.h> +#include <semaphore.h> +#include <time.h> + +#include <nuttx/fs.h> + +/************************************************************ + * Definitions + ************************************************************/ + +/* File System Definitions **********************************/ + +/* File system error values *********************************/ + +#define EOF (-1) + +/* File I/O constants ***************************************/ + +#define MAXNAMLEN 100 +#define NAME_MAX 100 +#define PATH_MAX 101 +#define S_IFMT 0170000 +#define S_IFIFO 0010000 +#define S_IFCHR 0020000 +#define S_IFDIR 0040000 +#define S_IFBLK 0060000 +#define S_IFREG 0100000 +#define S_IFLNK 0120000 +#define S_IFSOCK 0140000 +#define SEEK_SET 0 +#define SEEK_CUR 1 +#define SEEK_END 2 + +/* Wind-River IOCTL constants */ + +#define FIOFLUSH 2 +#define FIONBIO 16 +#define FIOSELECT 28 +#define FIOUNSELECT 29 +#define FIOTRUNC 42 +#define FIOHANDLETONAME 45 +#define FIOLABELGET 33 +#define SET_HIDDEN 0x1004 +#define PHYS_BLK_IO 255 + +#define SECTOR_ALIGN_BYTES 512 +#define FILE_BUF_SIZE (4 * SECTOR_ALIGN_BYTES) +#define FILE_BUF_ALIGN_BYTES 16 + +/* File type code for the EntryType field in dirent struct */ + +#define FS_FILE_TYPE 0 +#define FS_DIRECTORY_TYPE 1 + +/* The first three _iob entries are reserved for standard I/O */ + +#define stdin (__stdfile(0)) +#define stdout (__stdfile(1)) +#define stderr (__stdfile(2)) + +/* These APIs are not implemented and/or can be synthesized from + * supported APIs. + */ + +#define putc(c,s) fputc((c),(s)) +#define putchar(c) fputc(c, stdout) +#define getc(s) fgetc(s) +#define getchar() fgetc(stdin) +#define ftell(s) fseek((s),0,SEEK_CUR) +#define rewind(s) ((void)fseek((s),0,SEEK_SET)) +#define fsync(f) + +/************************************************************ + * Public Type Definitions + ************************************************************/ + +/* The POSIX specification requires that the caller of readdir_r + * provide storage "large enough for a dirent with the d_name + * member and an array of char containing at least {NAME_MAX} + * plus one elements. The legacy dirent structure does not + * contain such an array. The legacy dirent structure is + * renamed _dirent below. + */ + +struct _dirent +{ + char *d_name; /* name of directory entry */ +}; +struct dirent +{ + char *d_name; /* A pointer to szName */ + char szName[NAME_MAX+1]; /* name of the directory entry */ +}; + +typedef struct +{ + unsigned char EntryType; /* FS_FILE_TYPE or FS_DIRECTORY_TYPE */ + char szName[NAME_MAX]; /* name of the directory entry */ +} fsdirent; + +typedef struct +{ + unsigned long inode; + int generation; + char *fileName; +} HANDLE_TO_NAME_IOCTL; + +struct stat +{ + dev_t st_dev; /* ID of device containing a */ + /* directory entry for this file */ + ino_t st_ino; /* Inode number */ + unsigned short st_mode; /* File type, attributes, and */ + /* access control summary */ + unsigned short st_nlink; /* Number of links */ + uid_t st_uid; /* User ID of file owner */ + gid_t st_gid; /* Group ID of file group */ + dev_t st_rdev; /* Device ID; this entry defined */ + /* only for char or blk spec files */ + off_t st_size; /* File size (bytes) */ + time_t st_atime; /* Time of last access */ + time_t st_mtime; /* Last modification time */ + time_t st_ctime; /* Last file status change time */ + /* Measured in secs since */ + /* 00:00:00 GMT, Jan 1, 1970 */ + long st_blksize; /* Non-standard, Wind-River field */ + unsigned long st_blocks; /* Non-standard, Wind-River field */ + long st_gen; /* file generation value: Non-standard, Wind-River field */ +}; + +struct statfs +{ + long f_bavail; /* free blocks available to non-superuser */ + long f_bfree; /* free blocks */ + long f_blocks; /* total blocks in file system */ + long f_bsize; /* fundamental file system block (bytes) */ + long f_ffree; /* free file nodes in file system */ + long f_files; /* total file nodes in file system */ + long f_type; /* type of info, zero for now */ +}; + +/* Streams */ + +typedef struct file_struct FILE; + +typedef void DIR; + +/************************************************************ + * Public Variables + ************************************************************/ + +/************************************************************ + * Inline Functions + ************************************************************/ + +/* Used to reference stdin, stdout, and stderr */ + +static inline FILE *__stdfile(int fd) +{ + if ((unsigned int)fd < CONFIG_NFILE_DESCRIPTORS) + { + struct streamlist *streams = sched_getstreams(); + if (streams) + { + return &streams->sl_streams[fd]; + } + } + return NULL; +} + +/************************************************************ + * Public Function Prototypes + ************************************************************/ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +/* ANSI-like File System Interfaces */ + +EXTERN int fclose(FILE *stream); +EXTERN int fflush(FILE *stream); +EXTERN int feof(FILE *stream); +EXTERN int ferror(FILE *stream); +EXTERN int fgetc(FILE *stream); +EXTERN char *fgets(char *s, int n, FILE *stream); +EXTERN FILE *fopen(const char *path, const char *type); +EXTERN int fprintf(FILE *stream, const char *format, ...); +EXTERN int fputc(int c, FILE *stream); +EXTERN int fputs(const char *s, FILE *stream); +EXTERN size_t fread(void *ptr, size_t size, size_t n_items, + FILE *stream); +EXTERN int fseek(FILE *stream, long int offset, int whence); +EXTERN size_t fwrite(const void *ptr, size_t size, + size_t n_items, FILE *stream); +EXTERN int printf(const char *format, ...); +EXTERN int puts(const char *s); +EXTERN int rename(const char *source, const char *target); +EXTERN int sprintf(char *dest, const char *format, ...); +EXTERN int ungetc(int c, FILE *stream); +EXTERN int vprintf(const char *s, va_list ap); +EXTERN int vfprintf(FILE *stream, const char *s, va_list ap); +EXTERN int vsprintf(char *buf, const char *s, va_list ap); + +/* POSIX-like File System Interfaces */ + +EXTERN int chdir(const char *path); +EXTERN int close(int fd); +EXTERN int closedir(DIR *dirp); +EXTERN int creat(const char *path, mode_t mode); +EXTERN FILE *fdopen(int fd, const char *type); +EXTERN int fstat(int fd, struct stat *buf); +EXTERN char *getcwd(char *buf, size_t size); +EXTERN int ioctl(int fd, int req, unsigned long arg); +EXTERN off_t lseek(int fd, off_t offset, int whence); +EXTERN int mkdir(const char *path, mode_t mode); +EXTERN int open( const char *path, int oflag, ... ); +EXTERN DIR *opendir(const char *path); +EXTERN int read(int fd, void *buf, unsigned int nbytes); +EXTERN struct _dirent *readdir(DIR *dirp); +EXTERN int readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result); +EXTERN void rewinddir(DIR *dirp); +EXTERN int rmdir(const char *path); +EXTERN void seekdir(DIR *dirp, int loc); +EXTERN int stat(const char *path, struct stat *buf); +EXTERN int statfs(const char *path, struct statfs *buf); +EXTERN int telldir(DIR *dirp); +EXTERN int unlink(const char *path); +EXTERN int write(int fd, const void *buf, unsigned int nbytes); + +#undef EXTERN +#if defined(__cplusplus) +} +#endif + +#endif /* __STDIO_H */ |