diff options
Diffstat (limited to 'nuttx/fs/nxffs/nxffs.h')
| -rw-r--r-- | nuttx/fs/nxffs/nxffs.h | 76 |
1 files changed, 63 insertions, 13 deletions
diff --git a/nuttx/fs/nxffs/nxffs.h b/nuttx/fs/nxffs/nxffs.h index 13f93644e..091260552 100644 --- a/nuttx/fs/nxffs/nxffs.h +++ b/nuttx/fs/nxffs/nxffs.h @@ -169,14 +169,6 @@ #define NXFFS_MAGICSIZE 4 /* Internal definitions *****************************************************/ -/* Values for volume flags */ - -#define VOL_FLAGS_WRITER (1 << 0) /* Only one writer of the volune */ - -#define VOL_FLAGS_SET(p,f) ((p)->flags &= ~(f)) -#define VOL_FLAGS_CLEAR(p,f) ((p)->flags |= (f)) -#define VOL_FLAGS_TEST(p,f) (((p)->flags & (f)) == 0) - /* If we encounter this number of erased bytes, we assume that all of the * flash beyond this point is erased. */ @@ -309,10 +301,6 @@ struct nxffs_blkstats_s * Public Variables ****************************************************************************/ -/* A singly-linked list of open files */ - -extern struct nxffs_ofile_s *g_ofiles; - /* The magic number that appears that the beginning of each NXFFS (logical) * block */ @@ -420,6 +408,28 @@ extern int nxffs_rdcache(FAR struct nxffs_volume_s *volume, off_t block, uint8_t nblocks); /**************************************************************************** + * Name: nxffs_wrcache + * + * Description: + * Write one or more logical blocks from the volume cache memory. + * + * Input Parameters: + * volume - Describes the current volume + * block - The first logical block to write + * nblocks - The number of logical blocks to be write. + * + * Returned Value: + * Negated errnos are returned only in the case of MTD reported failures. + * Nothing in the volume data itself will generate errors. + * + * Defined in nxffs_cache.c + * + ****************************************************************************/ + +extern int nxffs_wrcache(FAR struct nxffs_volume_s *volume, off_t block, + uint8_t nblocks); + +/**************************************************************************** * Name: nxffs_ioseek * * Description: @@ -553,7 +563,7 @@ extern int nxffs_nextentry(FAR struct nxffs_volume_s *volume, off_t offset, extern int nxffs_findinode(FAR struct nxffs_volume_s *volume, FAR const char *name, - struct nxffs_entry_s *entry); + FAR struct nxffs_entry_s *entry); /**************************************************************************** * Name: nxffs_verifyblock @@ -645,6 +655,46 @@ extern int nxffs_blockstats(FAR struct nxffs_volume_s *volume, extern int nxffs_reformat(FAR struct nxffs_volume_s *volume); /**************************************************************************** + * Name: nxffs_findofile + * + * Description: + * Search the list of already opened files to see if the inode of this + * name is one of the opened files. + * + * Input Parameters: + * name - The name of the inode to check. + * + * Returned Value: + * If an inode of this name is found in the list of opened inodes, then + * a reference to the open file structure is returned. NULL is returned + * otherwise. + * + * Defined in nxffs_open.c + * + ****************************************************************************/ + +extern FAR struct nxffs_ofile_s *nxffs_findofile(FAR const char *name); + +/**************************************************************************** + * Name: nxffs_rminode + * + * Description: + * Remove an inode from FLASH. This is the internal implementation of + * the file system unlinke operation. + * + * Input Parameters: + * volume - Describes the NXFFS volume. + * name - the name of the inode to be deleted. + * + * Returned Value: + * Zero is returned if the inode is successfully deleted. Otherwise, a + * negated errno value is returned indicating the nature of the failure. + * + ****************************************************************************/ + +extern int nxffs_rminode(FAR struct nxffs_volume_s *volume, FAR const char *name); + +/**************************************************************************** * Standard mountpoint operation methods * * Description: |