diff options
Diffstat (limited to 'apps/builtin/binfs.c')
| -rw-r--r-- | apps/builtin/binfs.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/apps/builtin/binfs.c b/apps/builtin/binfs.c index 4159c9663..365021c7f 100644 --- a/apps/builtin/binfs.c +++ b/apps/builtin/binfs.c @@ -85,6 +85,8 @@ static int binfs_close(FAR struct file *filep); static ssize_t binfs_read(FAR struct file *filep, char *buffer, size_t buflen); static int binfs_ioctl(FAR struct file *filep, int cmd, unsigned long arg); +static int binfs_dup(FAR const struct file *oldp, FAR struct file *newp); + static int binfs_opendir(struct inode *mountpt, const char *relpath, struct fs_dirent_s *dir); static int binfs_readdir(struct inode *mountpt, struct fs_dirent_s *dir); @@ -120,7 +122,7 @@ const struct mountpt_operations binfs_operations = binfs_ioctl, /* ioctl */ NULL, /* sync */ - NULL, /* dup */ + binfs_dup, /* dup */ binfs_opendir, /* opendir */ NULL, /* closedir */ @@ -297,6 +299,39 @@ static int binfs_ioctl(FAR struct file *filep, int cmd, unsigned long arg) } /**************************************************************************** + * Name: binfs_dup + * + * Description: + * Duplicate open file data in the new file structure. + * + ****************************************************************************/ + +static int binfs_dup(FAR const struct file *oldp, FAR struct file *newp) +{ + struct binfs_state_s *bm; + int ret = -ENOSYS; + + fvdbg("Dup %p->%p\n", oldp, newp); + + /* Sanity checks */ + + DEBUGASSERT(oldp->f_priv == NULL && oldp->f_inode != NULL); + + /* mountpoint private data from the inode reference from the file + * structure + */ + + bm = (struct binfs_state_s*)oldp->f_inode->i_private; + DEBUGASSERT(bm != NULL); + + /* Opening of elements within the pseudo-file system is not yet supported + * and, hence, neither is dup'ing the opened file. + */ + + return ret; +} + +/**************************************************************************** * Name: binfs_opendir * * Description: |