{
/*
* No valid interval found.
- * Hopefully the disk is brand new (or new).
+ * Hopefully the disk is brand new (or full).
*/
TRACEMSG("No valid marked free block found, new disk or disk full\n");
disk->free_start = 0;
return false;
}
+ /* Init list for opened files. */
+ LIST_INIT(&disk->file_opened_list);
return true;
}
+/**
+ * Open file \a inode from \a disk in \a mode.
+ * File context is stored in \a fd.
+ * \return true if ok, false otherwise.
+ */
+bool battfs_fileopen(BattFsSuper *disk, KFileBattFs *fd, inode_t inode, filemode_t mode)
+{
+ Node *n;
+
+ memset(fd, 0, sizeof(*fd));
+
+ /* Insert file handle in list, ordered by inode, ascending order. */
+ FOREACH_NODE(n, &disk->file_opened_list)
+ {
+ KFileBattFs *file = containerof(n, KFileBattFs, link);
+ if (file->inode >= inode)
+ break;
+ }
+ INSERT_BEFORE(n, &fd->link);
+
+ /* Fill in data */
+ fd->inode = inode;
+ fd->mode = mode;
+ fd->disk = disk;
+
+#warning TODO battfs_read, battfs_write, etc...
+#if 0
+ fd->fd.read = battfs_read;
+ fd->fd.write = battfs_write;
+ fd->fd.close = battfs_close;
+ fd->fd.reopen = battfs_reopen;
+ fd->fd.flush = battfs_flush;
+ fd->fd.error = battfs_error;
+ fd->fd.clearerr = battfs_clearerr;
+#endif
+ fd->fd.seek = kfile_genericSeek;
+ DB(fd->fd._type = KFT_BATTFS);
+
+#warning Complete me :-)
+ return true;
+}
+
/**
* Close \a disk.
*/
#include <cfg/compiler.h> // uintXX_t; STATIC_ASSERT
#include <cpu/types.h> // CPU_BITS_PER_CHAR
#include <algo/rotating_hash.h>
+#include <mware/list.h>
+#include <kern/kfile.h>
typedef uint16_t fill_t;
typedef fill_t pgaddr_t;
*/
pgcnt_t *page_array;
- /**
+ /**
* Lowest free page counter.
* This is the counter of the first availble free page.
*/
mark_t free_start;
- /**
+ /**
* Highest free page counter.
* This value is the next to be used to mark a block as free.
*/
disk_size_t disk_size; ///< Size of the disk, in bytes (page_count * page_size).
disk_size_t free_bytes; ///< Free space on the disk.
+ List file_opened_list; ///< List used to keep trace of open files.
/* TODO add other fields. */
} BattFsSuper;
+typedef uint8_t filemode_t; ///< Type for file open.
+
+/**
+ * Describe a BattFs file usign a KFile.
+ */
+typedef struct KFileBattFs
+{
+ KFile fd; ///< KFile context
+ Node link; ///< Link for inserting in opened file list
+ inode_t inode; ///< inode of the opened file
+ BattFsSuper *disk; ///< Disk context
+ filemode_t mode; ///< File open mode
+} KFileBattFs;
+
+INLINE KFileBattFs * KFILEBATTFS(KFile *fd)
+{
+ ASSERT(fd->_type == KFT_BATTFS);
+ return (KFileBattFs *)fd;
+}
+
bool battfs_init(struct BattFsSuper *d);
bool battfs_close(struct BattFsSuper *disk);
+bool battfs_fileopen(BattFsSuper *disk, KFileBattFs *fd, inode_t inode, filemode_t mode);
+
bool battfs_writeTestBlock(struct BattFsSuper *disk, pgcnt_t page, inode_t inode, seq_t seq, fill_t fill, pgoff_t pgoff, mark_t mark);
#endif /* FS_BATTFS_H */