/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
- * Copyright (C) 2002-2010 Aleph One Ltd.
+ * Copyright (C) 2002-2011 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
#include "yportenv.h"
-//typedef long off_t;
-//typedef long dev_t;
-//typedef unsigned long mode_t;
-
-
#ifndef NAME_MAX
#define NAME_MAX 256
#endif
+#define YAFFS_MAX_FILE_SIZE \
+ ( (sizeof(Y_LOFF_T) < 8) ? YAFFS_MAX_FILE_SIZE_32 : (0x800000000LL - 1) )
-struct yaffs_dirent{
- long d_ino; /* inode number */
- off_t d_off; /* offset to this dirent */
- unsigned short d_reclen; /* length of this d_name */
- YUCHAR d_type; /* type of this record */
- YCHAR d_name [NAME_MAX+1]; /* file name (null-terminated) */
- unsigned d_dont_use; /* debug pointer, not for public consumption */
-};
-typedef struct yaffs_dirent yaffs_dirent;
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+struct yaffs_dirent {
+ long d_ino; /* inode number */
+ off_t d_off; /* offset to this dirent */
+ unsigned short d_reclen; /* length of this dirent */
+ YUCHAR d_type; /* type of this record */
+ YCHAR d_name[NAME_MAX+1]; /* file name (null-terminated) */
+ unsigned d_dont_use; /* debug: not for public consumption */
+};
-typedef struct __opaque yaffs_DIR;
+typedef struct opaque_structure yaffs_DIR;
-struct yaffs_stat{
- int st_dev; /* device */
- int st_ino; /* inode */
- unsigned st_mode; /* protection */
- int st_nlink; /* number of hard links */
- int st_uid; /* user ID of owner */
- int st_gid; /* group ID of owner */
- unsigned st_rdev; /* device type (if inode device) */
- off_t st_size; /* total size, in bytes */
- unsigned long st_blksize; /* blocksize for filesystem I/O */
- unsigned long st_blocks; /* number of blocks allocated */
+struct yaffs_stat {
+ int st_dev; /* device */
+ int st_ino; /* inode */
+ unsigned st_mode; /* protection */
+ int st_nlink; /* number of hard links */
+ int st_uid; /* user ID of owner */
+ int st_gid; /* group ID of owner */
+ unsigned st_rdev; /* device type (if inode device) */
+ Y_LOFF_T st_size; /* total size, in bytes */
+ unsigned long st_blksize; /* blocksize for filesystem I/O */
+ unsigned long st_blocks; /* number of blocks allocated */
#ifdef CONFIG_YAFFS_WINCE
/* Special 64-bit times for WinCE */
- unsigned long yst_wince_atime[2];
- unsigned long yst_wince_mtime[2];
- unsigned long yst_wince_ctime[2];
+ unsigned long yst_wince_atime[2];
+ unsigned long yst_wince_mtime[2];
+ unsigned long yst_wince_ctime[2];
#else
- unsigned long yst_atime; /* time of last access */
- unsigned long yst_mtime; /* time of last modification */
- unsigned long yst_ctime; /* time of last change */
+ unsigned long yst_atime; /* time of last access */
+ unsigned long yst_mtime; /* time of last modification */
+ unsigned long yst_ctime; /* time of last change */
#endif
};
+
+struct yaffs_utimbuf {
+ unsigned long actime;
+ unsigned long modtime;
+};
+
+/* Normal POSIX-style API functions */
+
int yaffs_open(const YCHAR *path, int oflag, int mode) ;
int yaffs_close(int fd) ;
int yaffs_dup(int fd);
+int yaffs_fgetfl(int fd, int *flags);
+
int yaffs_read(int fd, void *buf, unsigned int nbyte) ;
int yaffs_write(int fd, const void *buf, unsigned int nbyte) ;
-int yaffs_pread(int fd, void *buf, unsigned int nbyte, unsigned int offset);
-int yaffs_pwrite(int fd, const void *buf, unsigned int nbyte, unsigned int offset);
+int yaffs_pread(int fd, void *buf, unsigned int nbyte, Y_LOFF_T offset);
+int yaffs_pwrite(int fd, const void *buf, unsigned int nbyte, Y_LOFF_T offset);
-off_t yaffs_lseek(int fd, off_t offset, int whence) ;
+Y_LOFF_T yaffs_lseek(int fd, Y_LOFF_T offset, int whence);
-int yaffs_truncate(const YCHAR *path, off_t new_size);
-int yaffs_ftruncate(int fd, off_t new_size);
+int yaffs_truncate(const YCHAR *path, Y_LOFF_T new_size);
+int yaffs_ftruncate(int fd, Y_LOFF_T new_size);
+
+int yaffs_unlink(const YCHAR *path);
+int yaffs_funlink(int fd);
-int yaffs_unlink(const YCHAR *path) ;
int yaffs_rename(const YCHAR *oldPath, const YCHAR *newPath) ;
int yaffs_stat(const YCHAR *path, struct yaffs_stat *buf) ;
int yaffs_lstat(const YCHAR *path, struct yaffs_stat *buf) ;
int yaffs_fstat(int fd, struct yaffs_stat *buf) ;
-int yaffs_setxattr(const char *path, const char *name, const void *data, int size, int flags);
-int yaffs_lsetxattr(const char *path, const char *name, const void *data, int size, int flags);
-int yaffs_fsetxattr(int fd, const char *name, const void *data, int size, int flags);
+int yaffs_utime(const YCHAR *path, const struct yaffs_utimbuf *buf);
+int yaffs_futime(int fd, const struct yaffs_utimbuf *buf);
+
+
+int yaffs_setxattr(const char *path, const char *name,
+ const void *data, int size, int flags);
+int yaffs_lsetxattr(const char *path, const char *name,
+ const void *data, int size, int flags);
+int yaffs_fsetxattr(int fd, const char *name,
+ const void *data, int size, int flags);
-int yaffs_getxattr(const char *path, const char *name, void *data, int size);
-int yaffs_lgetxattr(const char *path, const char *name, void *data, int size);
-int yaffs_fgetxattr(int fd, const char *name, void *data, int size);
+int yaffs_getxattr(const char *path, const char *name,
+ void *data, int size);
+int yaffs_lgetxattr(const char *path, const char *name,
+ void *data, int size);
+int yaffs_fgetxattr(int fd, const char *name,
+ void *data, int size);
int yaffs_removexattr(const char *path, const char *name);
int yaffs_lremovexattr(const char *path, const char *name);
int yaffs_llistxattr(const char *path, char *list, int size);
int yaffs_flistxattr(int fd, char *list, int size);
-
-#ifdef CONFIG_YAFFS_WINCE
-
-int yaffs_set_wince_times(int fd, const unsigned *wctime, const unsigned *watime, const unsigned *wmtime);
-int yaffs_get_wince_times(int fd, unsigned *wctime, unsigned *watime, unsigned *wmtime);
-
-#endif
-
-int yaffs_chmod(const YCHAR *path, mode_t mode);
-int yaffs_fchmod(int fd, mode_t mode);
+int yaffs_chmod(const YCHAR *path, mode_t mode);
+int yaffs_fchmod(int fd, mode_t mode);
int yaffs_mkdir(const YCHAR *path, mode_t mode) ;
int yaffs_rmdir(const YCHAR *path) ;
int yaffs_mount(const YCHAR *path) ;
int yaffs_mount2(const YCHAR *path, int read_only);
+int yaffs_mount3(const YCHAR *path, int read_only, int skip_checkpt);
+
int yaffs_unmount(const YCHAR *path) ;
int yaffs_unmount2(const YCHAR *path, int force);
int yaffs_remount(const YCHAR *path, int force, int read_only);
+int yaffs_format(const YCHAR *path,
+ int unmount_flag,
+ int force_unmount_flag,
+ int remount_flag);
-int yaffs_sync(const YCHAR *path) ;
+/*
+ * yaffs_sync() does a full sync, including checkpoint.
+ * yaffs_sync_files() just flushes the cache and does not write a checkpoint.
+ */
+int yaffs_sync(const YCHAR *path);
+int yaffs_sync_files(const YCHAR *path) ;
-int yaffs_symlink(const YCHAR *oldpath, const YCHAR *newpath);
-int yaffs_readlink(const YCHAR *path, YCHAR *buf, int bufsiz);
+int yaffs_symlink(const YCHAR *oldpath, const YCHAR *newpath);
+int yaffs_readlink(const YCHAR *path, YCHAR *buf, int bufsiz);
-int yaffs_link(const YCHAR *oldpath, const YCHAR *newpath);
+int yaffs_link(const YCHAR *oldpath, const YCHAR *newpath);
int yaffs_mknod(const YCHAR *pathname, mode_t mode, dev_t dev);
-loff_t yaffs_freespace(const YCHAR *path);
-loff_t yaffs_totalspace(const YCHAR *path);
+Y_LOFF_T yaffs_freespace(const YCHAR *path);
+Y_LOFF_T yaffs_totalspace(const YCHAR *path);
+
+/* Function variants that use a relative directory */
+struct yaffs_obj;
+int yaffs_open_sharing_reldir(struct yaffs_obj *reldir, const YCHAR *path, int oflag, int mode, int sharing);
+int yaffs_open_reldir(struct yaffs_obj *reldir,const YCHAR *path, int oflag, int mode);
+int yaffs_truncate_reldir(struct yaffs_obj *reldir, const YCHAR *path, Y_LOFF_T new_size);
+int yaffs_unlink_reldir(struct yaffs_obj *reldir, const YCHAR *path);
+int yaffs_rename_reldir(struct yaffs_obj *reldir,
+ const YCHAR *oldPath, const YCHAR *newPath);
+int yaffs_stat_reldir(struct yaffs_obj *reldir, const YCHAR *path, struct yaffs_stat *buf);
+int yaffs_lstat_reldir(struct yaffs_obj *reldir, const YCHAR *path, struct yaffs_stat *buf);
+int yaffs_utime_reldir(struct yaffs_obj *reldir, const YCHAR *path, const struct yaffs_utimbuf *buf);
+int yaffs_setxattr_reldir(struct yaffs_obj *reldir, const YCHAR *path,
+ const char *name, const void *data, int size, int flags);
+int yaffs_lsetxattr_reldir(struct yaffs_obj *reldir, const YCHAR *path,
+ const char *name, const void *data, int size, int flags);
+int yaffs_getxattr_reldir(struct yaffs_obj *reldir, const YCHAR *path,
+ const char *name, void *data, int size);
+int yaffs_lgetxattr_reldir(struct yaffs_obj *reldir, const YCHAR *path,
+ const char *name, void *data, int size);
+int yaffs_listxattr_reldir(struct yaffs_obj *reldir, const YCHAR *path,
+ char *data, int size);
+int yaffs_llistxattr_reldir(struct yaffs_obj *reldir, const YCHAR *path,
+ char *data, int size);
+int yaffs_removexattr_reldir(struct yaffs_obj *reldir, const YCHAR *path,
+ const char *name);
+int yaffs_lremovexattr_reldir(struct yaffs_obj *reldir, const YCHAR *path,
+ const char *name);
+int yaffs_access_reldir(struct yaffs_obj *reldir, const YCHAR *path, int amode);
+int yaffs_chmod_reldir(struct yaffs_obj *reldir, const YCHAR *path, mode_t mode);
+int yaffs_mkdir_reldir(struct yaffs_obj *reldir, const YCHAR *path, mode_t mode);
+int yaffs_rmdir_reldir(struct yaffs_obj *reldir, const YCHAR *path);
+yaffs_DIR *yaffs_opendir_reldir(struct yaffs_obj *reldir, const YCHAR *dirname);
+int yaffs_symlink_reldir(struct yaffs_obj *reldir,
+ const YCHAR *oldpath, const YCHAR *newpath);
+int yaffs_readlink_reldir(struct yaffs_obj *reldir,const YCHAR *path,
+ YCHAR *buf, int bufsiz);
+int yaffs_link_reldir(struct yaffs_obj *reldir,
+ const YCHAR *oldpath, const YCHAR *linkpath);
+int yaffs_mknod_reldir(struct yaffs_obj *reldir, const YCHAR *pathname,
+ mode_t mode, dev_t dev);
+
+/* Function variants that use a relative device */
+struct yaffs_dev;
+int yaffs_mount_reldev(struct yaffs_dev *dev);
+int yaffs_open_sharing_reldev(struct yaffs_dev *dev, const YCHAR *path, int oflag, int mode, int sharing);
+int yaffs_open_reldev(struct yaffs_dev *dev,const YCHAR *path, int oflag, int mode);
+int yaffs_truncate_reldev(struct yaffs_dev *dev, const YCHAR *path, Y_LOFF_T new_size);
+int yaffs_unlink_reldev(struct yaffs_dev *dev, const YCHAR *path);
+int yaffs_rename_reldev(struct yaffs_dev *dev,
+ const YCHAR *oldPath, const YCHAR *newPath);
+int yaffs_stat_reldev(struct yaffs_dev *dev, const YCHAR *path, struct yaffs_stat *buf);
+int yaffs_lstat_reldev(struct yaffs_dev *dev, const YCHAR *path, struct yaffs_stat *buf);
+int yaffs_utime_reldev(struct yaffs_dev *dev, const YCHAR *path, const struct yaffs_utimbuf *buf);
+int yaffs_setxattr_reldev(struct yaffs_dev *dev, const YCHAR *path,
+ const char *name, const void *data, int size, int flags);
+int yaffs_lsetxattr_reldev(struct yaffs_dev *dev, const YCHAR *path,
+ const char *name, const void *data, int size, int flags);
+int yaffs_getxattr_reldev(struct yaffs_dev *dev, const YCHAR *path,
+ const char *name, void *data, int size);
+int yaffs_lgetxattr_reldev(struct yaffs_dev *dev, const YCHAR *path,
+ const char *name, void *data, int size);
+int yaffs_listxattr_reldev(struct yaffs_dev *dev, const YCHAR *path,
+ char *data, int size);
+int yaffs_llistxattr_reldev(struct yaffs_dev *dev, const YCHAR *path,
+ char *data, int size);
+int yaffs_removexattr_reldev(struct yaffs_dev *dev, const YCHAR *path,
+ const char *name);
+int yaffs_lremovexattr_reldev(struct yaffs_dev *dev, const YCHAR *path,
+ const char *name);
+int yaffs_access_reldev(struct yaffs_dev *dev, const YCHAR *path, int amode);
+int yaffs_chmod_reldev(struct yaffs_dev *dev, const YCHAR *path, mode_t mode);
+int yaffs_mkdir_reldev(struct yaffs_dev *dev, const YCHAR *path, mode_t mode);
+int yaffs_rmdir_reldev(struct yaffs_dev *dev, const YCHAR *path);
+yaffs_DIR *yaffs_opendir_reldev(struct yaffs_dev *dev, const YCHAR *dirname);
+int yaffs_symlink_reldev(struct yaffs_dev *dev,
+ const YCHAR *oldpath, const YCHAR *newpath);
+int yaffs_readlink_reldev(struct yaffs_dev *dev, const YCHAR *path,
+ YCHAR *buf, int bufsiz);
+int yaffs_link_reldev(struct yaffs_dev *dev,
+ const YCHAR *oldpath, const YCHAR *linkpath);
+int yaffs_mknod_reldev(struct yaffs_dev *dev, const YCHAR *pathname,
+ mode_t mode, dev_t dev_val);
+Y_LOFF_T yaffs_freespace_reldev(struct yaffs_dev *dev);
+Y_LOFF_T yaffs_totalspace_reldev(struct yaffs_dev *dev);
+
+/*
+ * yaffs_sync_reldev() does a full sync, including checkpoint.
+ * yaffs_sync_files_reldev() just flushes the cache and does not write a checkpoint.
+ */
+int yaffs_sync_reldev(struct yaffs_dev *dev);
+int yaffs_sync_files_reldev(struct yaffs_dev *dev);
+
+int yaffs_unmount_reldev(struct yaffs_dev *dev);
+int yaffs_unmount2_reldev(struct yaffs_dev *dev, int force);
+int yaffs_remount_reldev(struct yaffs_dev *dev, int force, int read_only);
+
+/*
+ * Non standard function to get at objects.
+ */
+struct yaffs_obj * yaffs_get_obj_from_fd(int handle);
+
+/* Some non-standard functions to use fds to access directories */
+struct yaffs_dirent *yaffs_readdir_fd(int fd);
+void yaffs_rewinddir_fd(int fd);
+
+/* Non-standard functions to pump garbage collection. */
+int yaffs_do_background_gc(const YCHAR *path, int urgency);
+int yaffs_do_background_gc_reldev(struct yaffs_dev *dev, int urgency);
+/* Non-standard functions to get usage info */
int yaffs_inodecount(const YCHAR *path);
int yaffs_n_handles(const YCHAR *path);
+int yaffs_n_handles_reldir(struct yaffs_obj *reldir, const YCHAR *path);
+int yaffs_dump_dev_reldir(struct yaffs_obj *reldir, const YCHAR *path);
+int yaffs_n_handles_reldev(struct yaffs_dev *dev, const YCHAR *path);
+int yaffs_dump_dev_reldev(struct yaffs_dev *dev, const YCHAR *path);
+
+#ifdef CONFIG_YAFFS_WINCE
+int yaffs_set_wince_times(int fd,
+ const unsigned *wctime,
+ const unsigned *watime,
+ const unsigned *wmtime);
+int yaffs_get_wince_times(int fd,
+ unsigned *wctime,
+ unsigned *watime,
+ unsigned *wmtime);
+#endif
+
+
#define YAFFS_SHARE_READ 1
#define YAFFS_SHARE_WRITE 2
-int yaffs_open_sharing(const YCHAR *path, int oflag, int mode, int shareMode) ;
+int yaffs_open_sharing(const YCHAR *path, int oflag, int mode, int shareMode);
-
-struct yaffs_dev_s;
-void yaffs_add_device(struct yaffs_dev_s *dev);
+struct yaffs_dev;
+void yaffs_add_device(struct yaffs_dev *dev);
int yaffs_start_up(void);
+int yaffsfs_GetLastError(void);
+
+/* Functions to iterate through devices. NB Use with extreme care! */
+void yaffs_dev_rewind(void);
+struct yaffs_dev *yaffs_next_dev(void);
+/* Function to get the last error */
+int yaffs_get_error(void);
+const char *yaffs_error_to_str(int err);
/* Function only for debugging */
-void * yaffs_getdev(const YCHAR *path);
+void *yaffs_getdev(const YCHAR *path);
int yaffs_dump_dev(const YCHAR *path);
+int yaffs_set_error(int error);
+
+/* Trace control functions */
+unsigned yaffs_set_trace(unsigned tm);
+unsigned yaffs_get_trace(void);
+
+#ifdef __cplusplus
+}
#endif
+#endif
projects / yaffs2.git / blobdiff