int shfs_write(shfs_ino_t *file, shbuf_t *buff)
{
shfs_ino_t *aux;
int format;
int err;
if (!file)
return (SHERR_INVAL);
err = 0;
format = shfs_format(file);
if (!buff)
return (SHERR_INVAL); /* presume user wants to erase content. */
if (shfs_attr(file) & SHATTR_DB)
format = SHINODE_DATABASE;
switch (format) {
case SHINODE_REFERENCE:
err = shfs_ref_write(file, buff);
break;
case SHINODE_EXTERNAL:
err = shfs_ext_write(file, buff);
break;
case SHINODE_COMPRESS:
err = shfs_zlib_write(file, buff);
break;
case SHINODE_DATABASE:
err = shfs_db_write(file, buff);
break;
case SHINODE_DIRECTORY:
err = shfs_attr_set(file, SHATTR_ARCH);
if (err)
break;
err = shfs_arch_write(file, buff);
break;
default:
err = shfs_bin_write(file, buff);
break;
}
if (!err)
err = shfs_inode_write_entity(file);
if (!err && (file->blk.hdr.attr & SHATTR_SYNC))
shfs_file_notify(file);
return (err);
}
int shfs_lock(shfs_ino_t *inode, int flags)
{
shstat st;
int err;
err = shfs_fstat(inode, &st);
if (err)
return (err);
if (shfs_type(inode) == SHINODE_FILE_LOCK)
return (SHERR_OPNOTSUPP);
return (shfs_attr_set(inode, SHATTR_FLOCK));
}
